Growing Up African American Essay

I am a member of the African American group and I would like to tell you a bit about the group of when I am a part of. Let me start by saying that my African American group originated from Africa and growing up in America can be tough for people of my race, the African Americans. My group’s history is wide ranging spanning for many years and varying from region to region within the United States. I remember when I was young I use to talk to my mother a lot and asked her many questions like â€Å"Why am I called an African American? † She went on to explain that our race originally comes from Africa and we were part of a slave trade. From my mother I learned that we were slaves until a law was passed to give us freedom. I use to wonder when I was young if there were other people similar to me all over America. I also remember something my father told me once that African Americans live all over the country. My father told stories of how he used to go to an all black school could vote or sit in the front of buses. Being African Americans have faced several kinds of creation and consequence situations in the years they have been a part of the United States. In some places cheaper labor, longer work hours and terrible living conditions. Many people of the United States have made it almost impossible for groups of another race or Ethnicity to strive and live full happy lives. I have seen over the year’s situations of extermination in some parts, as well segregation, and expulsion. In school from some of my teachers, in social interactions like just walking through a store, and especially in the work place when they’ll even give me the chance to work because it doesn’t matter I go to get a job out here. There are some racist, even the Uncle Tom’s. I’ve done everything they ask and still I either get denied the job or they hire me and treat me like Growing up African American 3 trash until I quit, or they try to find a reason to get rid of me. Since, I don’t give them much reason to get rid of me due to my strong work ethic and performance; they usually try to break me down. Education plays an important role for most African Americans; however we are still way behind when compared to the White American which probably has a lot to do with the way some of us was brought up or our background. Regardless of the contributions made by the forefathers of black people, there is a hesitation of acceptance of the race that has been a focus of many groups the strive for freedom and justice for all, that has not yet been rectified. The same group of people was good enough to built the country is not always seen as good enough to live in the house next door. I believe because this country is made up of many different races and ethnic groups that are steadily growing in numbers. If different races are toco exist peacefully in the U. S. , it is vital that we all become educated on the history and culture of different races and ethnicities. According to the 2000 Census data for Lexington, MS the total population for 2000 were 2,025 male 965 and female 1,060 square miles 2. 45. Race: white (635); black or African American (1,362); American Indian and Alaska Native (1); Asian (13); and two or more races (14); and Hispanic or Latino (of any race) (40) (Fact finder Census 2000). Birthplace facts from the 2000 census data in Lexington born in the same state (1,706); born in another state (269); born outside the US (0); naturalized citizen (14); and foreign born, not US citizen (10). Some more 2000 census data in educational attainment population 25 and older was 1,206 in Lexington: high school graduates (299); some college, or associate’s degree (349); bachelor’s degree (111); and master’s, professional or doctorate degree (60). Some enrollment population 3 years and over Growing up African American 4 enrolled in school was 627: preschool and kindergarten (83); grades 1-12 (446); and college (98) (2000 census data). Growing up African American 5 References Factfinder Census 2000 Census data for Lexington, MS My mother and father.

Electromechanical Energy Conversion

Introduction Chapter 3 Electromechanical Energy Conversion Topics to cover: 1. Introduction 3. Force and Torque 5. Friction 2. Electro-Motive Force (EMF) 4. Doubly-Excited Actuators 6. Mechanical Components Introduction (Cont. ) For energy conversion between electrical and mechanical forms, electromechanical devices are developed. In general, electromechanical energy conversion devices can be divided into three categories: – Transducers (for measurement and control), which transform signals of different forms. Examples are microphones, pickups, and speakers Force producing devices (linear motion devices), which produce forces mostly for linear motion drives, such as relays, solenoids (linear actuators), and electromagnets. – Continuous energy conversion equipment, which operate in rotating mode. A device would be known as a generator if it convert mechanical energy into electrical energy, or as a motor if it does the other way around (from electrical to mechanical). Lor entz Force & EMF Lorentz force is the force on a point charge due to electromagnetic fields. It is given by the following equation in terms of the electric and magnetic fieldsF ? q(E? v? B) The induced emf in a conductor of length l moving with a speed v in a uniform magnetic field of flux density B can be determined by a e ? ?v? B? ? dl ? b In a coil of N turns, the induced emf can be calculated by e ? ? Concept map of electromechanical system modeling d? dt where ? is the flux linkage of the coil and the minus sign indicates that the induced current opposes the variation of the field. It makes no difference whether the variation of the flux linkage is a result of the field variation or coil movement. EMF EMF – Example: EMF in a Linear Actuator – Example SolutionSketch L(x) and calculate the induced emf in the excitation coil for a linear actuator shown below. Assuming infinite permeability for the magnetic core and ignore the fringing effect, we can express the self inductance of the coil as L? x ? ? where Rg ? x? ? N2 ?o N 2 l ?d ? x? ? Rg ? x ? 2g L(x) L(0) 2g ?o ? d ? x? l O is the air gap reluctance. ? e? ? N 2l d? d ? Li ? di dL dx di ? ? L ? i =L? x ? ? i o v 2g dt dt dt dx dt dt EMF – A Single Conductor in a Uniform Field e ? ? I dc If i=Imsin? t , e? Force and Torque – Example Solution (Cont. ) If i=Idc , ?o N 2 l 2g ? Im ? Im ?o N 2l 2gFor a single conductor in a uniform magnetic field, we have v ? d ? x I m cos ? t ? vI m sin ? t ?o N l 2 2g ?o N 2 l 2g d Fm ? Il ? B ?o N 2 l In a rotating system, the torque about an axis can be calculated by 2g d ? x cos? t ? v sin ? t ? ? T? r ? Fm v ? ? ? ? d ? x ? ? ? ? d ? x ? 2 ? 2 ? v 2 cos t ? arctan? ? where r is the radius vector from the axis towards the conductor. B Fm l I X Force and Torque – A Singly Excited Actuator Consider a singly excited linear actuator. After a time interval dt, we notice that the plunger has moved for a distance dx under the action of the force F.The mechanical work done by the force acting on the plunger during this time interval is thus dWm ? Fdx Force and Torque – A Singly Excited Actuator The amount of electrical energy that has been transferred into the magnetic field and converted into the mechanical work during dt is dWe ? dWf ? dWm ; dWe ? eidt ? vidt? Ri2dt e ? d? dt ? v ? Ri Because dWf ? dW ? dW ? eidt ? Fdx ? id? ? Fdx e m we obtain From the total differential dW f ? ? , x ? ? ? W f , x ? i? Therefore, ? W f , x ? d? ? and ? W f , x ? ?x F dx ?W f ? ? , x ? ?x Force and Torque Force and Torque – A Singly Excited Actuator (Cont. ) A Singly Excited Actuator (Cont. ) From the knowledge of electromagnetics, the energy stored in a magnetic field can be expressed as ? Wf ? ? , x? ? ? i? ? , x? d? In the diagram below, it is shown that the magnetic energy is equivalent to the area above the magnetization or ? -i curve. Mathematically, if we define the area underneath the magnetization curve a s the coenergy (which does not exist physically), i. e. 0 For a magnetically linear (with a constant permeability or a straight line magnetization curve such that the inductance of the coil is independent of the excitation current) system, the above expression becomes 1 ? Wf ? ?, x? ? 2 L? x? and the force acting on the plunger is then F ?Wf ? ?, x? ?x 1 ? ? ? dL? x? 1 2 dL? x? ?i 2 ? L? x? ? dx 2 dx ? 2 we can obtain Wf ‘ ? i, x? ? i? ?Wf , x? ? Wf (? , x ) dW f ‘ ? i , x ? ? ? di ? id? ? dW f ? ? , x ? ? ? di ? Fdx Therefore, ? ?W f ‘ ? i , x ? ?i ? W f ‘ ? i , x ? ?i di ? and ?W f ‘ ? i , x ? ?x F? dx ? W f ‘ ? i , x ? ?x (? , i ) Wf ‘ ( i, x ) O i Force and Torque Force and Torque – A Singly Excited Actuator (Cont. ) – Example 1 Calculate the force acting on the plunger of a linear actuator as shown below. From the definition, the coenergy can be calculated by iWf ‘ ? i , x? ? ? ? ? i , x? di ? 0 Wf ‘ ? i, x? ? ? (? , i ) Wf (? , x ) For a magnetically linear system, the above expression becomes Rg 1 L? x? i 2 2 Ni Wf ‘ ( i, x ) Rg and the force acting on the plunger is then F? ?Wf ‘ ? i , x ? ?x 1 dL? x ? ? i2 dx 2 O i (c) Force and Torque Force and Torque – Singly Excited Rotating Actuator – Solution to Example 1 Assume infinite permeability for the actuator core. The self inductance of the excitation winding can be readily obtained as L? x? ? N 2 ? o N 2l? d ? x? ? 2Rg 2g Therefore, the force acting on the plunger is F? ? Rg Ni ?l 1 2 dL ? x ? 2 i ? ? o ? Ni ? 2 dx 4gThe minus sign of the force indicates that the direction of the force is to reduce the displacement so as to reduce the reluctance of the air gaps. Since this force is caused by the variation of magnetic reluctance of the magnetic circuit, it is known as the reluctance force. Rg The singly excited linear actuator becomes a singly excited rotating actuator if the linearly movable plunger is repla ced by a rotor. Through a derivation similar to that for a singly excited linear actuator, one can readily obtain that the torque acting on the rotor can be expressed as the negative partial derivative of the energy stored in the agnetic field against the angular displacement or as the positive partial derivative of the coenergy against the angular displacement. Force and Torque Solution b) Voltage induced – Example †¢ The magnetically-linear electro-mechanical circuit breaker as shown is singly-excited via a N-turn coil. Its magnetic reluctance varies with the angle ? as R ? Rm? ? R0 , where Rm and R0 are constant. †¢ Derive the torque developed by the field from the system co-energy. †¢ When the device is excited with a direct current i=I, the angular displacement increases quadratically as ? ?t ? ? 1 ? t 2 ? ?t ? ? 0 , 2 where ? ? and ? 0 are constant. Find the voltage induced in the coil . Singly Excited Rotating Actuator Total turns, N = N1 + N2 Frame relu ctance Rf ? rf 2 Gap reluctance Rg ? 2rg ? ? lf 2? 0 ? r wd 2lg ?0rd (2? ? ? ) , 2? ? 760 ? 1. 33 rad Rg(? ) Rcore ?g Rarmature Fm=Ni e(t ) ? ? N 2 IRm (? t ? ? ) [ R0 ? Rm 1 ? t 2 ? ?t ? ? 0 ]2 2 ? Singly Excited Rotating Actuator ? Singly Excited Rotating Actuator airgap length, lg = 0. 001 m airgap radius, r = 0. 0745 m airgap depth, d = 0. 0255 m frame length lf = 0. 496 m limb width w = 0. 024 m Singly Excited Rotating Actuator ? (? ) ? T? ? NI R f ? Rg (? ) lf Rf ? 2 ? ? r wd Magnetic flux at equilibrium : ? NI ?0 ? ? ? R (? ) ? R f ?g ? ? ?0 NI lf 2 ? 0 ? r wd ? lg ?0rd? ? , Rg ? 2l g ?W f? ? ? ? N2 ? ?, ? R (? ) ? R ? f? ?g dRg dRg 2l g sign(? ) , where ? d? d? ?0 rd (2? ? ? )2 1 2 ? L(? ) 1 2 ? I ?I 2 2 122 ?1 IN 2 ?Rg (? ) ? R f ? 2 2l Rr sign(? ) 1 ? ? I 2N 2 , where Rr ? g 2 2 ?0 rd 4 ?Rg (? ) ? R f ? (2? ? ? ) ?0 rd (2? ? ? ) Restoring Torque ?1, x ? 0 sign ( x ) ? ? 1, x ? 0 NI? 0d lf l ?g 2 ? r w r? Force and Torque Singly Excited Rotating Actuator – Sing ly Excited Rotating Actuator (Cont. ) Torque Nm Flux mWb Flux, Torque for 2-pole motorEnergy In g eneral, 1. 5 Coenergy dW f ? id? ? Td ? dW f ‘ ? ? di ? Td ? ? i W f ? ? , ? ? ? ? i ? ? , ? ?d ? W f ‘ ? i , ? ? ? ? ? ?i , ? ?di ?W f ? ? , ? ? i? ?W f ? ? , ? ? T ?W f ‘ ? i , ? ? ?i ?W f ‘ ? i , ? ? T? 0 1. 0 mWb, Nm 0. 5 0 If the permeability is a constant, W f , ? ? ? 0. 0 0 5 10 15 20 25 30 35 40 45 rotor angle 50 55 60 65 70 75 80 1 ? 2 2 L ? 1 ? ? ? dL ? 1 2 dL ? ?i 2 ? L ? ? d ? 2 d? ? ? W f ‘ ? i , ? ? ? 2 T? T? 12 i L ? 2 1 2 dL ? i 2 d? Force and Torque Force and Torque – Doubly Excited Rotating Actuator – Doubly Excited Rotating Actuator (Cont. If a second winding is placed on the rotor, the singly excited actuator becomes a doubly excited actuator. The general principle for force and torque calculation discussed here is equally applicable to multi-excited systems. The differential energy and coenergy functions can be derived as dW f ? dWe ? dWm where dWe ? e1i1dt ? e2 i2 dt , e1 ? d? 1 dt , e2 ? d ? 2 dt , and dWm ? Td ? Hence, dW f 1 , ? 2 , ? ? ? i1d ? 1 ? i2 d ? 2 ? Td ? ? and ? W f 1 , ? 2 , ? ? ? W f 1 , ? 2 , ? ? ? W f 1 , ? 2 , ? ? d ? 1 ? d ? 2 ? d? 1 2 ? ? dW f ‘ ? i1 , i 2 , ? ? ? d i1 ? 1 ? i 2 ? 2 ? W f ? 1 , ? 2 , ? ? ? ?1 di1 ? ?2 di 2 ? T d ? ? ? W f ‘ ? i1 , i 2 , ? ? Therefore, T ? i1 di1 ? ? W f ‘ ? i1 , i 2 , ? ? ?Wf 1 , ? 2 , ? ? ? i2 or di 2 ? T? ? W f ‘ ? i1 , i 2 , ? ? Force and Torque – Doubly Excited Rotating Actuator (Cont. ) – Example 3 ? ? L? 1 For magnetically linear systems, ? ? 1 ? ? L11 ? ? ? L ? 2? ? 21 L 1 2 ? ? i1 ? L 22 ? ?i2 ? ? ? i1 ? ? ? 11 ?i ? ? ? ? ? 2? ? 21 or ? 1 2 ? ? ? 1 ? ? 22 ? ? ? 2 ? ? The magnetic energy and coenergy can then be expressed as W f ? ?1 , ? 2 , ? ? ? Therefore, d? ? W f ‘ ? i1 , i2 , ? ? Force and Torque and 1 1 2 ? 1 1 ? 12 ? 2 2 ? 2 ? ? 1 2 ? 1 ? 2 2 2 W f ‘ ? i 1 , i 2 , ? 1 1 L 1 1 i 12 ? L i 2 ? L 1 2 i1i 2 2 2 22 2 ? W f ‘ ? i 1 , i 2 , ? ? 1 2 d L 1 1 ? 1 2 d L 2 2 ? d L 1 2 ? ? i1 ? i2 ? i1i 2 2 2 T ?W f 1 , ? 2 , ? ? ? A magnetically-linear doubly-fed electromechanical actuator has two windings and a mechanical output with spatial rotary displacement ?. The self and mutual inductances of the windings are respectively L11 ? ? 5 ? cos(2? ) mH, L22 ? ? 50 ? 10 cos(2? ) mH, and L12 ? ? L21 ? ? 100 cos? mH. Brushless doubly-fed machine The first winding is supplied with i1 = 1. A while the second winding draws i2 = 20 mA. Determine: a) The general electromagnetic torque of the actuator as a function of ? . b) The maximum torque that the actuator can develop. Solution to Example 3 (a) Solution to Example 3 (cont. ) The  energy  stored  at  the  doubly? fed  actuator  is, 1 1 2 2 W f ? L11i1 ? L12 i1i2 ? L22 i2 2 2 1 1 ?3 2 ?3 2 ? (5 ? cos 2? ) ? 10 i1 ? (0. 1cos? )i1i2 ? (50 ? 10 cos 2? ) ? 10 i2 2 2 The  ex pression  of  electromagnetic  torque  is  obtained  as  follows:   ? ?W f (i1 , i2 ,? ) T ? i1 ? 1. 5, i2 ? 0. 02 ? 2 2 1 ? (i1 L11 ) ? (i1i2 L12 ) 1 ? (i2 L22 ) ? ? ? 2 2 1 1 (1. 5) 2 ( ? 2 sin 2? ) ? 10 ? 3 ? (1. 5)(0. 02)(? 0. 1sin ? ) ? (0. 02) 2 ( ? 20 sin 2? ) ? 10 ? 3 2 2 ?3 ? ? ( 2. 25 sin 2? ? 3 sin ? ) ? 10 Why Magnetic Field? Ratio of Electric and Magnetic Energy Densities in the air gap we ? 0 ? 0 E 2 1 ? ? wm B2 3. 6 ? 10 5 †¢ Saturation Flux Density Bs = 2T in commonlyused magnetic materials †¢ Air breakdown voltage Ebd=1,000,000 V/m b) At  maximum  torque, dT ?0 d? Differentiating  T  from  part  (a), 4. 5 cos 2? ? 3 cos ? ? 0 ? 1. 5 cos 2? ? cos ? ? 0 or               1. 5( 2 cos 2 ? ? 1) ? cos? ? 0 Solving  for  ? by  the  quadratic  formula, ?  =  55. 94 °Ã‚  and  153. 25 °Ã‚  (extraneous)Substituting  the  value  of  ? into  the  torque  expression  yields, T(max) ? ?(2. 25 s in 2(55. 94) ? 3 sin(55. 94)) ? 10 ? 3 ? ?4. 57 ? 10 ? 3 Nm Electric Machines †¢ Electric motor converts electrical energy into mechanical motion. †¢ The reverse task, that of converting mechanical motion into electrical energy, is accomplished by a generator or dynamo. †¢ In many cases the two devices differ only in their application and minor construction details, and some applications use a single device to fill both roles. For example, traction motors used on locomotive often perform both tasks if the locomotive is equipped with ynamic brakes. Introduction Electric Motors Electric Machine Insulation Class DC Motors Universal (DC/AC) AC Motors †¢ Induction †¢ Synchronous Stepping Motors Brushless DC Motors Coreless DC Motors Linear Motors MEMS Nano Motors †¢ A critical factor in the reduced life of electrical equipment is heat. The type of insulation used in a motor depends on the operating temperature that the motor will experience. †¢ Average insulation life decreases rapidly with increases in motor internal operating temperatures. †¢ Electric motor converts electrical energy into mechanical motion: Lorentz force on any wire when it is onducting electricity while contained within a magnetic field †¢ Rotor: rotating part †¢ Stator: stationary part †¢ Armature: part of the motor across which the voltage is supplied MaglevMagnetic Levitation Three phase AC induction motors rated 1 Hp (750 W) and 25 W with small motors from CD player, toy and CD/DVD drive reader head traverse DC Generators / Dynamos AC Generators / Alternators As the first electrical generator capable of delivering power for industry, the dynamo uses electromagnetic principles to convert mechanical rotation into a pulsing direct electric current through the use of a commutator.Without a commutator, the dynamo is an example of an alternator, which is a synchronous singly-fed generator. With an electromechanical commutator, the dynamo is a classical direct current (DC) generator. The DC generator can operate at any speed within mechanical limits but always outputs a direct current waveform. Mechanical energy is used to rotate the coil (N turns, area A) at uniform angular velocity ? in the magnetic field B, it will produce a sinusoidal emf in the coil: Permanent Magnet DC Generators d? d ? ? ( NBA cos ? ) dt dt ? NBA? sin ? t e(t ) ? ? http://micro. magnet. fsu. edu/electromag/java/generator/dc. tml Automotive alternator Rotor emf and current are induced by rotating magnetic field http://micro. magnet. fsu. edu/electromag/java/generator/ac. html Mechanical Components Mechanical Components – Mass and Inertia The mechanical component which stores kinetic energy is a mass in a translational system, and a moment of inertia in a rotational system. – Mass and Inertia (Cont. ) The kinetic energy stored by a mass moving at a velocity v, or a moment of inertia rotating at an angular speed ?. can be calculated by ? x M T F J Wk ? 1 Mv2 2 d? d 2? T? J 2 ? J dt dt dv d 2x F? M ?M dt 2 dt 1 J? 2 2 (translational system) rotational system) Comparing with the relationships of voltage, current, and magnetic energy in an inductor: V? L By the Newton’s second law, we have Wk ? or di dt and WL ? 1 Li2 2 we may regard a mass or a moment of inertia as an inductor which stores magnetic energy, if we let J? L M? L or Mechanical Components Mechanical Components – Springs An ideal spring is a device with negligible mass and mechanical losses, whose deformation is a single-valued function of the applied force or torque. A linear ideal spring has deformation proportional to force or ? 1 torque. – Springs (Cont. ) For a given distortion of x and ? the potential energy stored in a spring is 1 1 W p ? ? Td ? ? K ? 2 W p ? ? Fdx ? Kx 2 T x1 F ? K ? x 1 ? x o ? ? Kx (linear spring) (torsional spring) Comparing with the relationships of electric charge, voltage and electric energy in a capacito r: Q V? C F 2 2 WC ? and 1 1 Q2 VQ ? 2 2C we may regard a spring as an electric capacitor which stores electric potential energy, if we let T ? K 1 ? ?o ? ? K ? K? 1 C Friction Friction Modelling Friction: force that opposes the relative motion or tendency of such motion of two surfaces in contact. Friction between the two objects converts kinetic energy into heat.Coefficient of friction (Frictional coefficient): dimensionless scalar value which describes the ratio of the force of friction between two bodies and the force pressing them together, needs not be less than 1 – under good conditions, a tire on concrete may have a coefficient of friction of 1. 7. Static friction (stiction) occurs when the two objects are not moving relative to each other: Rolling friction occuring when one object â€Å"rolls† on another (like a car's wheels on the ground), is stiction as the patch of the tire in contact with the ground, at any point while the tire spins, is stationary relati ve to the ground.Kinetic (or dynamic) friction occurs when two objects are moving relative to each other and rub together: – Sliding friction is when two objects are rubbing against each other. – Fluid friction is the friction between a solid object as it moves through a liquid or a gas. The drag of air on an airplane or of water on a swimmer are two examples of fluid friction. Lu-Gre Model (1995): ? 0 , ? 1 bristles’ stiffness and damping coefficient ?2 viscous friction FC , F S Coulomb and Stribeck friction ? F f ? ? 0 z ? ? 1z ? ? 2v ? z? v? v z g (v ) 2 1 g (v ) ? [ FC ? ( F S ? FC ) e ? v / v S ) ] ?0 Mechanical Components Mechanical Components – Damper The mechanical damper is analogous to electrical resistor in that it dissipates energy as heat. An ideal damper is a device that exhibits no mass or spring effect and exerts a force that is a function of the relative velocity between its two parts. A linear ideal damper has a force proportional to the relative velocity. In all cases a damper produces a force that opposes the relative motion of the two parts. Mechanical friction occurs in a variety of situations under many different physical conditions.Sometimes friction is unwanted but must be tolerated and accounted for analytically, as, for example, in bearings, sliding electrical contacts, and the aerodynamic drag on a moving body. In other cases friction is desired and is designed into equipment. Examples are vibration dampers and shock absorbers. d ? x2 ? x1 ? dt dx ?B dt F? B ? B? R d 2 ? ?1 ? dt d? ?B dt T? B – Damper (Cont. ) Mechanical Components Mechanical Components – Damper (Cont. ) The damping due to Coulomb friction, as shown by the characteristic, can be regarded as a nonlinear resistor, which can keep the voltage across it to be constant.The Coulomb friction force can be expressed as – Damper (Cont. ) There is another kind of damping caused by the drag of a viscous fluid in turbulent flow. 2 F ? ? Bs d x2 ? x1 dt F ? ?d Fn ? ? d Fn d ? x2 ? x1 ? dt ? ? ? Bs dx dt d ? x2 ? x1 ? dt ? 2 ? R ? B s dx dt dx dt ? dx dt or T ? ? Bs d 2 ? ?1 ? dt Comparing with V=RI, we may conclude that ?F R? d n dx dt ? ? ? Bs d? dt ? ? 2 2 ? R ? B s d ? dt MR Dampers as a semi-active device MR Damper New Models Non-symmetrical Model (2007) ? F ( x) ? c0 x ? ko ( x ? x0 ) ? ?z ? ? ? z ? (? ? ( ? ? ? sign( zx) z ) x n : hysteresis variable, ? , ? , ? , ? , n, c0 , k0 : model parameters Bouc-Wen Model: ? F ( x ) ? c0 x ? k o ( x ? x0 ) ? ? z ? ? ? ? z ? ? ? z | x || z | n ? 1 ? ? x | z | n ? ? x z: hysteresis variable , ? , ? , ? , ? , n , c 0 , k 0 : model parameters Static Hysteresis Model (2006) ? F ( x) ? cx ? kx ? ?z ? f 0 ? z ? tanh( ? x ? sign( x)) z : hysteresis variable, ? , ? , f 0 , c, k : model parameters Minimally-Parameterised Model (2007) ? F : G ( x ) ? D ( x ), F ( x) ? ? 1 ? F2 : G ( x ) ? D ( x ), b G ( x) ? a ? ? 1 ? exp ( cx ) ? D ( x ) ? rexp{? ( x / 2? ) 2 } ? 0 x ? 0, x

An Overview Of John Bergers Article Ways Of Seeing

An Overview Of John Berger's Article Ways Of Seeing John Berger wrote an article entitled Ways of Seeing . In this article of his, he imposes his opinion of works of art , what constitutes a work of art. He also talks about reproductions of art. His perception of reproductions is that they pervert the original piece, and that by reproduction the beauty and value of the piece is taken away, that the piece is not the same because it does not represent anymore what the artist originally intended. I do not agree with Berger. I do not see reproductions of art to be perversions of the original, and I also do not agree with his outline for a work of art . Reproduction allows people to see something they might never have, they allow the artist to gain more exposure, whereas if there had been no reproduction, only a handful of people might have seen it. As to what a work of art is, that is something I believe to be totally up to the observer. What one may perceive to be beautiful, an opinion perhaps brought on by personal experiences, another may not see the same way. A work of art I truly enjoy and respect is Salvador Dali s Table with Landscape . The joy of the painting for me comes from the intricacies that Dali weaves into the painting. The painting has many levels to it, a succession of realizations occur if the painting is studied long enough. When I first saw this painting, I saw a cup on a table, with a lot of scenery in the background. I do not consider myself someone who appreciates art in any particular form, so at first all I saw was a bland table with a cup on it. When I looked closer however, I began to see much more to the picture. The neck of the cup seemed to be part of a face, the mouth and nose of the face lying in the table. The scenery that I had previously disregarded as unimportant revealed itself to be much more. At the very top of the painting was a mountain landscape, and below it, mixed into the scenery, standing behind the cup on the table, was a dog! A dog? I said. Why on earth would Dali put a dog in his painting, and moreover, why would we make it such a concealed part of the painting. I did not understand at first Dali s reasoning for this strange painting, but as soon as I let go of my confusions, the painting started to make sense to me. I no longer cared what the painting had meant to Dali when he was painting it, but rather I was interested in what the painting meant to me. Perhaps this was wrong of me to totally disregard the painter s initial reason for creating the picture, but what concerned me most was the idea of the painting that was taking shape in my mind. I saw the painting as a part of my mind, seemingly one huge mass of thoughts and ideas thrown together making completely no sense. But when I looked closer, I could pick out individual parts of the painting. The parts might not have been related, but never the less they were separate. I found that my mind was the same way. It was a huge mass of ideas thrown together, but if I took the time to think, I could separate all the diff erent things I was thinking, and individually they all made sense. This is something I would do when I am confused, if there is too much going on in my head that it seems it is all one big mess, I take the time to separate the ideas and I slowly begin to understand my situation better. When I tell people about this painting and what it means to me, they often have no idea of what I could possibly mean, but the fact that they don t understand me is inconsequential, because the painting is special to me for my own reasons, and that is what is important to me. Before in this essay, I referred to Dali s painting as a work of art . What is a work of art ? Who determines what is or is not a work of art ? Berger talks about works of art , mainly when he refers to common paintings that most people recognize by name. Is this to imply that a piece of art has to be well known in order to be considered a work of art ? What about before these works of art were famous. They were merely canvases filled with paint, the same as they are today, yet at the time when they were produced, they were not immediately considered revolutionary and inspirational for their time. It took people to who had the means to view these paintings to give them such a distinction. Once again, I will repeat, people who had the means. The poor people of the time could not afford such luxuries to view pieces of art, so a painter obtained his praise from the high class solely, and only once the painting was famous enough to gain exposure could the lower class see it and make thei r own judgements, too late of course since the piece had already been dubbed a work of art and was revered. The fact that the piece was considered a work of art by one group may mean nothing to another person. This is because what one person may see to be an example of beauty in a painting, another person might have a different opinion. That is why I say a work of art is completely in the eye of the beholder, that is, art is a personal thing and we cannot expect a person to see exactly what we see, and appreciate it the same way as we may. Berger is strongly against reproduction of art. He says it perverts the original piece and takes away from its meaning. I cannot totally disagree with Berger that the idea of art may change with other people s perceptions, but I cannot agree with him that it is necessarily a bad thing. With the reproduction comes the void of what the painting means. The artist is no longer always there to tell you what he felt when painting that specific piece. That however, is to me the beautiful part of art. Being able to interpret the painting for your own reasons is a freedom that allows us to be creative. Berger argues that this sense of understanding the painting is called mystification (Berger, 108). It is nothing less than the painting working upon us (Berger, 109). He considers the artist to be a seducer, to make us think we understand the painting. Well then, which is it, do we understand the painting or don t we? It is true that we cannot understand the painter s perspective from looking a t the painting itself, but we can understand the painting for our own reasons, based on our own experiences. In the painting I described earlier, there are many possibilities as to what someone s first interpretation might be, or what would be the first thing they saw in the painting. I myself initially saw a cup on a table, but someone else might see the face in the cup first, or the dog in the background. All these reasons are because the painting means something different to each person. Also, would other people see all the aspects of the painting as I did, or would they merely see one thing surrounded by a massive amount of random items in the painting that seem to have no connection. The fact is, it does not matter. The way I interpret the painting will most probably be different from someone else s interpretation, that is because we look for different things in the painting. Our minds are stimulated in different ways. If we were not allowed to see the painting in our own light , if we were forced to see what the painter had originally intended, then our creative forces would be crippled, and our own ideas would mean nothing. In reality, our own ideas mean everything to us, they make us who we are, allow us to think freely, and draw our own conclusions. As I said, I do not believe a work of art can be decided upon by a small group of people, because then only their points of view are considered when making the decision. Berger was entitled to his own opinion on art reproduction. His own opinion is valid purely for the fact that it is his opinion and cannot be proven wrong by anyone because a person s opinion is his or her own idea, not a true or false statement.

As WWII unfolded, which enemy posed the greater threat to American Essay

As WWII unfolded, which enemy posed the greater threat to American interests, Germany or Japan - Essay Example continued for six long years and ended with the victory of the Allies (England, America and France) and the complete defeat of the Axis Powers (Germany, Italy, Japan) leaving infamous blurs on the very face of humanity in general and the warring countries in particular. â€Å"World War II†, the writer submits, â€Å"fundamentally changed national institutions and behavior, immensely affecting most Americans; history’s greatest armed conflict proved as much a turning point in personal lives as in world affairs.† (782) As soon as the WWII came to an end, all the three countries belonging to the Axis Powers i.e. Germany, Italy and Japan were the losers among which Italy had already surrendered before the Allies and its dictator Bantu Mussolini had been executed. It is therefore both Germany and Japan were the only sufferers which had to undergo severe trials, strict banishments, indescribable humiliation and vast destruction. Heavy war indemnity and harsh terms and conditions had been inflicted and imposed upon the two losing countries pushing their masses in despair and losses in men and material. Germany was divided into two parts with the construction of the Berlin Wall; the western part was under the sway of the USA, the UK and France, while the eastern part of Germany was administered by Russia. Thus passion for revenge from Germany could be scared and expected by the Allies, especially the USA in future. Similarly, America has dropped atomic bombs on two of the Japanese cities Nagasaki and Hi roshima in August 1945 causing millions of lives into death and destruction. It is therefore revenge could also be expected from Japanese nation. Hence, the two losing countries were considered as the permanent threat for America in the future years to come. Before the beginning of the World War II, the notion of militarism had got its way all over the globe. Germany’s Nazi party under the dynamic leadership of Adolf Hitler was determined to dominate the world in order

Strategic Human Resource Planning Essay Example | Topics and Well Written Essays - 2500 words

Strategic Human Resource Planning - Essay Example The researcher states that the organisations in today’s competitive era have realized the importance of human and capital management because both are considered critical for the achievement of long term and short term goals. The HR managers are now focusing on employing right people, at the right position and at the right time with the right set of skills, knowledge and abilities. Shift from personnel management to human resource has called for innovation and change and thus, keeping this in view, organisations are inclined towards strategic human resource planning as the ultimate solution of the challenges being faced by them in this competitive era. Strategic human resource planning is a process in which organisations ensure that the right people are employed with the right skill set. It is ensured that the desired set of behaviour have been developed in them through employee training or development. Organisations probe into these factors to get to know whether their employe e developmental programs are such that can easily lead to the achievement of organisational goals and objectives or they need to employ such people that can lead to successful completion of tasks. Human resource planning refers to identifying and analysing the availability of human resources for the purpose of ensuring whether an organisation can achieve its intended goals and objectives. It is a complex process and requires specialized skills in the field of planning because it relies heavily on identifying the right set of people with the right skill set. ... It allows managers to evaluate whether they have the right set of people with the right skill set to pursue their organisational strategy. Secondly, it envisioned managers regarding firms’ resources both financial and human capital because these are two of the most important resources that help in the execution of the strategies once they have been devised by the concerned executives. Strategic Human Resource Plan Managers at Jim Cleaning aim at linking their strategic planning process with human resource planning because they are aware of the fact that employees are valuable assets of any organisation and thus, it is required that there should be a proper strategic HR plan devised that depicts a guideline for the employees as to how to move towards achieving their organisational goals and objectives. According to (Snell &Bohlander, 48), following are the steps involved in developing a Strategic HR plan and keeping in view steps the managers at Jim Cleaning proposed for the HR strategic plan. Step 1: Analysing mission, vision and core values The first step involved in developing strategic HR plan is to develop mission and vision statement. Mission statement shows the purpose of existence of the organisation whereas the vision statement shows that what an organisation aspires to become in near future. These statements help organisations to develop their strategic goals and objectives whereas the core values of an organisation provide managers with principles and beliefs that aid them in decision making process. Step 2: Environmental Scanning The second step involved in developing strategic HR plan is environmental screening. Managers at Jim Cleaning are very much concerned regarding

Haifa Almansour (director) Essay Example | Topics and Well Written Essays - 500 words

Haifa Almansour (director) - Essay Example However, Haifaa is determined to succeed in adopting creative ideas to help in sailing through the challenges (IMDB). Haifaa directs movies that fall into the genres of comedy and drama. Though the movies seek to address some of the issues facing her contemporary society, they portray a feature of romance and drama. The film Wadja that was the first film entirely shot in Saudi Arabia and directed by Haifaa is an example of a drama movie. The drama is expressed in a little girl’s endeavors to overcome taboo in the country in trying to own a bicycle. Her other film Who is also a drama and a comedy. Who entails a woman who dreams of her sister being strangled by a man only to be strangled the following day by a man dressed in a woman’s veil (Abu-Nasr, 2003). Haifaa focuses on addressing issues that face the women in Saudi Arabia and most Islamic States. In her movies, she addresses issues that not many women would dare speak about in real life. In Saudi Arabia, women are oppressed by their customs and tradition. For example, in the movie Wadja, a young girl has the desire to own and ride a green bicycle. However, she cannot buy and ride a bicycle as the actions are considered a taboo in the community. In most countries in the contemporary society, traditions have been abandoned and people are adopting new ones. In Saudi Arabia, however, the traditions hold firm, and these are some of the issues being addressed by Haifaa in her movies (S, 2013). Though not openly, Haifaa’s movies have a trace of feminism. In all her major works, Haifaa addresses the issues of women and the oppressions by the men. In her movies like the Women Without Shadows, Who, Wadja, and The only way out, the main characters are female. However, Haifaa be justified as she might be said to be creating a career and inspiration for women into achieving success like their colleagues in

Tort law Essay Example | Topics and Well Written Essays - 1000 words

Tort law - Essay Example In fact, a number of critics have advocated for an amendment of this law. In its general statement, there is no absolute obligation of an individual to a duty, but there is a duty not to cause harm. This article will focus on the general application of this law, as well as the various exceptions that are provided. The tort law is used to govern the actions of ordinary persons or professionals that can cause harm to those under their care. The tort law is usually applied to defend the right of an individual who suffers injury as a result of breach of duty by their caretaker. In the court, this is accomplished through financial compensation or an injunction. Financial compensation means that the injured person is compensated with money that is perceived to be equivalent to the damage or injury that they incurred. Injunction refers to the stoppage of an unfair act that causes harm to the subject. The person who is placing such a suit is called the plaintiff, while the sued person is ref erred to as the defendant (Lunney& Oliphant, 2008). This law is characterized by a number of elements. First, an element of duty or responsibility must be evident. For example, the nurses in a hospital have a duty to ensure that all the beds used by patients are comfortable and in order. Secondly, the element of negligence must exist. Negligence refers to the failure to implement the expected duties hence causing harm to the plaintiff. A good example is when a nurse fails to check the condition of a bed and it breaks down resulting in an injury to a patient. In such a case, it is obvious that the patient suffered injuries because the nurse failed to conduct their duties as expected (Lunney& Oliphant, 2008). Therefore, the implementation of this law requires that it is proven beyond doubt that the Offedant had a duty to offer care to the plaintiff but breached this duty. Also, there must exist a causative relationship between the damage and the negligent action. This means that the l aw only qualifies if the damage was a result of the breach of duty. Hence, the judge needs to establish that all these elements are present in the case before passing any judgment. In professional application, negligence refers to the failure to act in accordance with the set standards of the duties of a competent practitioner. For instance, the doctors must meet the set professional standards in medical practice. If any harm results from compromise of set standards, then the doctor would be liable (Lunney& Oliphant, 2008). In comparison to the Saudi law, the Tort English law is more efficient in defending the subjects of injury or damage. This is because it gives the plaintiff a privilege to act as an adequate witness in court. The major drawback in Saudi law is that the plaintiff is not allowed to testify. The subjects of the case are regarded as unreliable and biased witnesses. Therefore, the plaintiff is allowed only to provide written allegations before the court. On the other hand, the defendant is allowed to defend themselves orally. This is a disadvantage for the plaintiff as the Saudi law puts more weight on oral testimony than on written allegations. A good example is a case in Saudi court that involved a British citizen who had visited Saudi on vacation. He suffered a spinal injury as a result of being hit by an overgrown Coral while sitting on a wooden platform. The plaintiff lost the case. Other disadvantages in Saudi courts are lack

Case analysis--- intercultural communication Essay

Case analysis--- intercultural communication - Essay Example The term globalization can be defined on the basis of four elements such as network extensity that facilitates connecting with different organizations, countries and people located across the globe, interaction intensity in such networks, speed of movement of such people, products, information across the globe, and the impact that is caused on various communities due to such a trend. In the context of globalization there often exists dilemma amongst the companies as to follow the ethical standards that are set in their home country or to adapt to the cultures and ethics of the local country so as to sustain its business operations (Varner & Beamer, 2011).One of the most renowned companies in the technology sector that faced such a dilemma was Google. It is the largest search engine across the globe with a total market of 70% in United States as identified in the year 2010. The company has not only been able to achieve high performance standards and success but also have set an image of being highly ethical by nature. The company performs all its operations based on the philosophy that money can be made even without doing any such thing that is evil. The major turmoil that the company noticed was in the year 2006 with the launch of a search engine that was China based. The company’s major motive was to gain market share in China and to make the Chinese pop ulation easily access all forms of information through its search engine (Human Rights Watch, 2010). However the company in order to be aligned with the censorship laws of the Chinese government agreed on the aspect of filtering certain words and information that would violate the law. Such words majorly were those that were politically sensitive such as democracy, etc. However the company faced major challenge through this initiative as many personnel engaged in human

Inter cultural communication Assignment Example | Topics and Well Written Essays - 500 words

Inter cultural communication - Assignment Example Furthermore, as has been discussed during the course of the semester, before being level of effective intercultural communication to take place, or the level of the nation all that, a relationship must at first exists. The depth and complexity of this relationship varies between individuals that issue(s) that are being discussed. However, in the event that the stakeholder wishes to have an effective level of communication with another partner, it is absolutely required that a relationship built on respect must exist first. Although this determinant alone does not guarantee that a level of agreement will be reached, the quality and depth of the communication, and the subsequent respect and trust that is fostered, will maximize the likelihood for this to take place. Accordingly, the need to focus upon this metric has encouraged many multinational firms and different governments to seek to build cultural appreciation and respect; prior to expecting a level of success with respect to com munication to be exhibited. Ultimately, human beings are extraordinarily impressionable creatures. As has been proven time and again, the culture and environment within which an individual is raised by profound and definitive impact with respect to the way in which they integrate with the world around them. With that being understood, it must also be understood that human beings are not programmable robots. Ultimately, for the thousands of individuals that might be influenced by particular culture and shoes to integrate with it, there may be a handful that rejected entirely; choosing to follow their own in life. However, instead of making the fundamental to stay at this juncture and saying that not all individuals are impacted by culture or are able to resist it, it must be noted that even those individuals who rejected entirely are impacted by. As such, even though culture can be resisted, the impact upon the individual is nonetheless profound as

Hindi matter on fashion Essay Example for Free

Hindi matter on fashion Essay Agriculture is the backbone of Pakistan’s economy. Pakistan today is among one of the World’s fastest growing population, now estimated as over 170 million. Due to lack of large river regulation capability through sizeable storages, the country is already facing serious shortages in food grains. Given the present trend, Pakistan could soon become one of the food deficit countries in the near future. Therefore, there is a dire need to build storages for augmenting agriculture production. reservoirs have already lost about 5,000,000 acre feet (6. 2Ãâ€"109 m3) due to sedimentation. Electricity needed Employement India wants its supremacy in the region; therefore, it is not resolving the water and Kashmir disputes. Politics has strong links to trade as political disputes led to blocking of trade India should display seriousness to practically resolve Kashmir and water disputes for trade and economic cooperation between Pakistan and India. Pakistani traders and industrialists want trade ties with India despite some reservations. There are chances of war on the water issue. Improvement in bilateral ties could benefit both the countries, but friendship should not be made at the cost of Kashmir and water. Climate affects the IWT or India’s building of reservoirs It gives India rights to the natural flow of water of the Indus three eastern tributaries the Ravi, Sutlej and Beas while Pakistan controls the main Indus channel itself and two western rivers, the Jhelum and Chenab. Pakistan has increasingly raised concerns about data sharing and transparency, particularly because the upper reaches of all of the rivers lie in Indian-controlled territory, giving that nation greater scope for control of the entire Indus river system. harvesting summer stream water into 3,000 litre gravity-fed storage tanks. Up to 30 percent of water is lost from the countrys unlined irrigation canals, experts said.

Environmental Analysis Of Brazil Marketing Essay

Environmental Analysis Of Brazil Marketing Essay DAIM Co. is the company that has been operating successfully for the past 15 years providing and manufacturing computer and computer devices and considered as the market leader in the Malaysian market. Due to the high competition in the market, the manager of DAIM Co. intends to persuade companys BOD (Board of Directors) to penetrate Brazilian market. The main idea of the business is to sell computers and computer devices in Brazil. The main purpose of this assignment is to perform environmental analysis of Brazil, to identify possible opportunities and threats, and to analyze how the environmental factors in terms of political-legal, social, economic and technological environment can affect the international operation functions and decision-making of a business. Also, this research paper provides most appropriate market entry strategy. Selected Product: Computer and computer devices Executive Summary flag_of_brazil.png images.jpg Geography It is a country that situates in the South America, and continents largest nation. Borders almost all the countries on the continent except Chile and Ecuador and has exit to Atlantic Ocean that makes country easy to access by the sea. The surface area of the country is 8 547 000 square km. Brazil ranks as fifth largest country. The capital city is Brasilia, while the most important cities are Sao Paulo and Rio de Janeiro. Brazils climate is tropical due to the location of the country, with the south being temperate. (Appendix 1, Political Map of Brazil) Demography It is the most populous nation in the South America, and worlds 6 country according to population after China, India, USA, Indonesia and Russian Federation. The population of brazil is equal to 190,732,694 people as of August 2010, which is 2.76% of Worlds Population. And the birth rate is 22.65 births per 1,000 populations. Different ethnic groups can be described as follows: 55% are whites of European descent, 22% are mulattous of mixed European and African Descent, 11% blacks and 0.1% Native Americans. (http://www.ibge.gov.br/english/presidencia/noticias/noticia_visualiza.php?id_noticia=1766id_pagina=1 ) Economic Profile Brazil has best economy among all countries in Latin America. Since its independence September 7, 1822 the economy is rapidly developing. And the result by 2010 is: GDP (nominal exchange rate): $ 2.1 trillion. GDP (purchasing power parity): $2.194 trillion. (Appendix 2, GDP of Brazil) Annual real growth (2010): 7.5%. Natural resources: Iron ore, manganese, bauxite, nickel, uranium, gemstones, oil, wood, and aluminum. Brazil has 14% of the worlds renewable fresh water. Agriculture (6% of GDP):  Productssoybeans, coffee, sugarcane, cocoa, rice, livestock, corn, oranges, cotton, wheat, and tobacco. Industry (28% of GDP):  Typessteel, commercial aircraft, chemicals, petrochemicals, footwear, machinery, motors, vehicles, auto parts, consumer durables, cement, and lumber. Exchange rate (March 3, 2011): U.S. $1 = 1.65 Brazilian reals. International Business Trade balance of Brazil as for 2011 is $20 billion surplus.  Exports: $202 billion.  Major markets of exports are: China 15%, USA 10%, Argentina 9%.  Imports: $182 billion.  Major suppliers are USA 15%, China 14%, and Argentina 8%. (http://www.state.gov/r/pa/ei/bgn/35640.htm) PESTLE Analysis PESTLE is a strategic management tool that provides useful framework to analyze the environmental pressures on Business (Goyal et al, 2009). Political: Brazil is a federal republic with 26 states and a federal district. The 1988 constitution grants broad powers to the federal government, made up of executive, legislative, and judicial branches. Electing Lula da Silva in the 2002 as the president of Brazil has been described as a milestone, a starting point for secured democratic rule in the nation. This was an important in the establishment of economic norms and practices for the country; the more socialist models of state-run industry have been rejected, and significant international debt has been incurred to address the social ills facing the country. During the economic crisis in Latin America, the Brazilian economic situation becomes even more important; the growth of the Brazilian market has come to bear significantly on the worlds economy. After the election there have been significant improvements in the political environment, but political wrangling still exists, and a fragmented congress means economic risks still remain.  Issues surrounding policy implementation mean that expected future benefits from current policies are uncertain. Economic: Brazilian economy is the largest in the South America region; country has well developed agriculture, mining, manufacturing and service sector. From 2003, Brazil improved its macroeconomic situation, built foreign relations, reduced internal debt, kept inflation rate under control. Later during the financial crisis Brazilian economy had a solid performance and its strong and early recovery, including 2010 growth of 7.5%, have contributed to the countrys transition from a regional to a global power. Expected to continue to grow in the 4% to 5% range, the economy is the worlds eighth-largest and is expected to rise to fifth within the next several years. During the administration of former President Lula, surging exports, economic growth and social programs helped lift tens of millions of Brazilians out of poverty. Social: The large and growing consumer market provides a strong basis for considering market entry.      It is unlikely that overall workforce availability will be an issue, given the option of using international labor if requirements cannot be met locally.  Ã‚   Labor costs are attractive but there are significant costs on top of basic wages and requirements for additional training. Technological: Brazil is a leader in science and technology in South America and in some fields a global leader, such as bio fuels, agricultural research, deep-sea oil production, and remote sensing. U.S. Government, private sector, and academic researchers have extensive ties with Brazilian counterparts, and the extent of bilateral scientific and technological cooperation is expanding. The Brazilian Government seeks to develop an environment that is more supportive of innovation, taking scientific advances from the laboratory to the marketplace. Legal: The Legal rules governing business activities in Brazil are basically laid down in federal legislation, but constitution allows Federal Government to legislate on certain matters related to business activities, such as tax, financial and economic issues, liability for environmental and consumer damages. Federal Governments power is limited to enacting basic rules on such issues, whereas States and Federal District have authority to legislate on a supplementary basis, in line with the general rules laid down in the federal legislation. Brazil offers big business opportunities for foreign investors, in light of its economic potential, its diversified economy and its huge domestic market, now considerably expanded as a result of several international trade agreements entered into with economic blocks and countries the World over. Environmental: According to the geographical location of Brazil, it is very easy accessible by the sea, this means the country has an exit to the Atlantic Ocean. The raw materials, equipment, and products can easily be delivered by the sea which is not costly comparing to transportation by air. Also, according to the geographical location of the country there is no natural disaster like earthquakes and tsunami, which may cause stoppage of the business. Due to the large size, the climate of Brazil is different, even though the most part of the country is within tropical zone. The climate of Brazil experiments two seasons: the rainy which is summer and dry season which is winter. There is no cold at all, so the climate is partly same as in Malaysia, and it is very suitable for doing business in this country. Market and Segment Analysis STP (Segmentation, Targeting and Positioning) is the essence of marketing. (Kotler, 1994, p. 93) Segmentation is the  process  of defining and subdividing a  market  into clearly identifiable  segments having similar  needs,  wants, or  demand  characteristics. (http://www.businessdictionary.com/definition/market-segmentation.html) Demographic Segmentation refers to a wide study of the potential customers (Kotler, P., 2002). It consists of the variables such as: age, income, occupation and gender. The below diagram demonstrates the age segmentation: 13-25 years for Education and Entertainment 25-65 years for doing business. Segment.jpg The income level is an important part of segmentation, everyone can afford computers and computer devices, because nowadays there to many types of devices and they vary in pricing. It is available for all levels of users, occupation and gender. Geographic Segmentation is done by dividing people (markets) into different geographical locations. (Kotler Armstrong, 2002, p.252) Here, the main target will be main cities like capital Brasilia, and the most important cities in the country Sao Paulo and Rio de Janeiro. Targeting Strategy is the  selection  of  potential  customers  to whom a  business wishes to  sell  products  or  services. The targeting  strategy involves segmenting the market, choosing which  segments of the market are  appropriate, and determining the products that will be offered in each segment. (http://www.businessdictionary.com/definition/targeting-strategy.html) Mostly computer devices will be selling to the big companies who need computers to operate their business and customers who uses computers that need devices to coordinate their busy schedules and communicate with colleagues, friends and family. Also, high schools, colleges and other educational institutions will be targeted in Brazil. Positioning Strategy   states  how the  firm  defines  its  business  or how a  brand  distinguishes itself, how the  customers  will benefit from its  features, and how these  benefits  or aspects will be communicated to the intended  audience. (http://www.businessdictionary.com/definition/positioning-statement.html) We are positioning our computers and computer devices as the versatile, convenient, value-added devices for doing business, personal and professional use. The marketing strategy will focus on the convenience of doing business, entertainment with access to the internet. Mode of Entry to the Market The proposed way to enter Brazilian market is through Joint Venture strategy, which is defined as a contractual business undertaking between two or more parties. It is similar to a business partnership, with one key difference: a partnership generally involves an ongoing, long-term business relationship, whereas a joint venture is based on a single business transaction. Establishment of joint ventures is a common practice in Brazil. A major motivation for joint ventures is to pair foreign firms with Brazilian partners to compete in segments of the government procurement market or in other markets subject to government regulation, such as telecommunications, computers and capital goods. Formation of a joint venture can be accomplished through a variety of business entities. Entering a joint venture is a complex, and sometimes, time consuming process. As any type business structure, it holds a good opportunity for anyone to grow and make money fast; but just like any other business type; joint venture also holds threat to anyone who wants to enter. Porters 5 Forces Porters fives forces model  is a model which is using to analyze a particular environment of an industry in terms of Competitive rivalry, power of suppliers, power of buyers, threats of substitutes and threat of new entrants. Competitive rivalry: When entering to the market, the first thing you have to do is to analyze competitive rivalry in the country you going to set your business. If entry to an industry is easy then competitive rivalry will likely to be high. If it is easy for customers to move to substitute products for example from coke to water then again rivalry will be high. Generally competitive rivalry will be high if: à ¢Ã¢â€š ¬Ã‚ ¢ There is little differentiation between the products sold between customers. Actually, there is not so much difference between computer devices sold in different companies. This means the customers will look for those products which have better quality or long life cycle of the product, in other words durability. à ¢Ã¢â€š ¬Ã‚ ¢ Competitors are approximately the same size of each other. Those companies who are operating as retailers only, will face a big trouble against big companies. The buyers prefer to work with best, well known companies who provide stability and confidence to them. Power of  suppliers Suppliers are also essential for the success of an  organization. Raw materials are needed to complete the finish product of the organization.  Suppliers  do have power. This power comes from:   à ¢Ã¢â€š ¬Ã‚ ¢ If they are the only  supplier  or one of few  suppliers  who  supply  that particular raw material. à ¢Ã¢â€š ¬Ã‚ ¢ If it costly for the  organization  to move from one  supplier  to another à ¢Ã¢â€š ¬Ã‚ ¢ If there is no other substitute for their product. Power of buyers Buyers or customers can exert  influence  and control over an industry in certain circumstances. This happens when: à ¢Ã¢â€š ¬Ã‚ ¢ There is little differentiation over the product and substitutes can be found easily. à ¢Ã¢â€š ¬Ã‚ ¢ Customers are sensitive to price. The pricing should not be high, it must suit their expectations. The overall life concerns in Brazil are low, this means we have to identify the prices in relation to the customers, are they able to buy our products. If the prices will be high, the customer will switch to another product or company which is not costly for them. Threat of Substitutes This is about the alternative products that customers can purchase over your product that offer the same benefit for the same or less price. Threat of substitute is high when the price of your PC is higher than your competitors price, or when competitors decide to cut the prices of their products. In this industry, we can say that there is high competition, so this can bring to losing customers because customers sometimes are willing to substitute and compare the products or companies itself. Threat of new entrant The threat of a new  organization  entering the industry is high when it is easy for an organization  to enter the industry. An  organization  will look at how loyal customers are to existing products, how quickly they can achieve economy of scales, would they have access to  suppliers, would  government legislation  prevent them or encourage them to enter the industry. Actually, there is high probability that other companies will enter the market and will compete with you in the market. Conclusion Doing business in Brazil may be very profitable to the international companies. All the factors that may affect the business are positively affecting the business. PC industry is developing on Brazil. And there are many drivers to start your own business in the Brazil. International companies have advantage over the local companies, as they are undervalued and in need of restructuring, capital and technology. There is creative and flexible labor force, which is not expensive comparing to other countries. Growth potential of consumer market is very high. Privatization in late stages, inflation is under control in the last 10 years. There is increasing globalization and international trade. Foreign investors are eligible for most available fiscal incentives. And established transportation networks such as railways, highways, ports make it easy to operate in Brazil.

Nonnative Invasive Plants - The Invasion of America by the Yellow Starthistle :: Horticulture Ecology Environment

Nonnative Invasive Plants - The Invasion of America by the Yellow Starthistle Introduction Our planet is made up of seven continents and seven oceans holding hundreds of thousands of environments and ecosystems, each with unique variations, compositions, and distinctions, and each carefully balanced in the functions of its different members. Over time, equilibria have been reached, as the organisms that populate areas stabilized, intermingled, and interacted with weather, soil, water availability, and other innumerable environmental factors. This is not to say that such environments are stagnant, for they are far from it. In order to remain healthy and profitable, however, change must happen slowly in an ecosystem, so that all members of the ecological community can adapt and survive. Radical change results in dangerous instability and threatens the livability of the system for the animals, plants, and even humans who depend upon it. As systems are vastly different and extremely delicate, species that are successful, profitable and enhance the livability in one area are sometimes entirely inapplicable and in fact dangerous in another. It is for this reason that we find ourselves confronted, in recent history, with a relatively new problem: nonnative species invasion. As human populations have begun to engage in widespread travel, exchanges, and modification attempts worldwide, they have also--both knowingly and unknowingly--introduced, transported, and intermingled species between ecosystems in a manner that is neither gradual nor delicate. Imbalances and frailties have ensued in the very ecosystems upon which we depend for our survival, health, and economic success. New animals, plants, bacteria, and organisms of all shapes and sizes and from every kingdom are being introduced to once stable environments on a regular basis through human carelessness and ignorance. Once introduced, they often negatively affect their newfound homes, taking over with unexpected force and threatening the native organisms. Many are well known, like Kudzu, an oriental plant initially introduced for erosion control, which now covers millions of acres in the Southern United States, or the tiny Zebra Mussel, originally found in Poland, which now blocks water supply and treatment systems nationwide. Invasive species are not a distant threat which will make their effects felt twenty or thirty years from now. They compose a current problem having major impacts on life and industry everywhere, and the magnitude of this problem continues to grow.

Fatal Errors of Brutus :: essays papers

Fatal Errors of Brutus William Shakespeare’s The Tragedy of Julius Caesar is built upon the six lethal mistakes that Brutus unknowingly performs. Brutus believes he uses wise judgment and cunning skill in his plans to prevail over Caesar. There are three errors that seem to be the most significant. They are refusing to take an oath, not killing Antony and allowing Antony to speak at Caesar’s funeral. The plot against Caesar is first devised by Cassius, who slowly allows Brutus to take over the arrangements. This is when Brutus’ miscalculations eventually lead him to his own downfall. First, Brutus truthfully feels that the conspirators have enough will and intelligence to keep the plot concealed from others. He believes the conspirators will not confer with anyone who may feel betrayed by their plans and protect Caesar. For this reason, Brutus strongly goes against the conspirators taking an oath to pledge their loyalty to the group. Brutus proceeds by stating that through each conspirator’s own personal motive for defeating Caesar is sufficient enough to bind them together. Brutus is dreadfully mistaken. The conspirators feel no actual degree of loyalty. They feel free to have doubts and discuss them with others. This is proven true when Artemidorus is revealed writing a letter to Caesar. The letter warns Caesar of the conspirators and names each one. The only possible way that Artemidorus could have been aware of the plan is if one of the conspirators felt the need to speak openly about the plot. Later, the question of whether or not to kill Antony is brought up by the conspirators. Brutus and Cassius disagree on the answer. Cassius believes it would be best to kill Antony so that there is no fear of revenge from him. Brutus does not see the threat in Antony. He sees Antony as merely a limb that has no power once Caesar is dead. The men then decide, through Brutus’ persuasion, that it is pointless and too bloody to kill Antony. This error causes Brutus’ ultimate downfall in the end. It would have been wise for the conspirators to kill Antony instead of facing him in their last battle. Finally, once Caesar is dead, Antony proposes to speak at his funeral. Cassius and Brutus again disagree. Cassius knows it is unwise to allow one of Caesar’s loyal friends to address the people at the funeral.

Breastfeeding vs. Bottle Feeding :: Breastfeeding vs. Formula

Children come into this world completely helpless, unable to even comprehend their surroundings not to mention the process that they have just taken part in. Because of this, infants are completely reliable on the individuals around them. It is the duty of the parents to take care of and nurture their children. Parents are to provide for their children both through emotional needs as well as survival needs. Newborns need to be fed through means of milk, thus relying on a decision by their mother and father of whether to breastfeed or bottle feed. As stated in Nancy E. Wright’s article on the progression of breastfeeding, Aristotle said, â€Å"There is a reason behind everything in nature.† Certain occurrences take place in nature that has repercussions or outcomes to them. Choosing to breastfeed is a decision that requires sacrifice and hard work, yet has the potential to be an intricate detail to the healthy development of infants and children. According to Dr. Alicia Dermer and Dr. Anne Montgomery from The Medical Reporter, there are countless benefits to breastfeeding not only for the child but for the mother. Human milk has nutritional benefits within the fluid that provide for the optimal absorption of iron. This milk also â€Å"protects the gut from harmful bacteria and assists in digestion of fat† (Dermer, Montgomery.) This certain article also talked about how a mother’s own milk will change during a feeding from thirst-quenching to hunger-satisfying. Mothers’ milk also has a variety of flavors because of the changing diet of the mother. Another benefit of breastfeeding, according to Dr. Dermer and Dr. Montgomery has to do with the immune system of infants. It is said that human milk is the baby’s first immunization. Human milk provides antibodies that protect the baby from many common respiratory and intestinal diseases. This milk also contains living immune cells according to this article as well. Colostrum, which is the first milk that is expressed by the mother, is packed with components which increases immunity and protects newborns’ intestines. This article also stated that, â€Å"artificially fed babies have higher rates of middle ear infections, pneumonia, and cases of gastroenteritis (stomach flu).† As a whole, breastfeed babies have a stronger immune system because of the antibodies that are expressed from the mother and passed on.

Elizabethan society Essay

At the end of the novel there can be seen to be a change of attitude of society towards Grenouille. Due to his amazing gift, Grenouille is able to create a scent that powerfully manipulates human emotion through preserving the aroma of the 25 virgin girls. At Grenouille’s execution he reveals this scent and the whole town is overwhelmed by emotion. It is at this point in time that the townsfolk admire Grenouille’s gift and because of their state of delirium, disregard Grenouille’s crimes. It is here when Grenouille can be seen to be accepted into society. However, regardless of this Grenouille still perceives himself as an outsider. Grenouille believes that he is not loved for himself but for the perfume he created, he states; â€Å"I have always found gratification in hatred, in hating and being hated, not love. † He then decides to return to Paris upon finding that the satisfaction that he initially felt has transformed itself into self-hatred and disgust. In comparison to Othello the novel Perfume can be seen to be both similar and different in their representations of the Outsider. Like Grenouille, Othello is seen as an outsider because of his background. He is outcaste because of his race and his differing values due to past experiences. Grenouille can be seen to reflect this idea, as he is an outsider initially because of his background that challenges the norm of society at the time the novel was set. Another similarity that can be made between these two texts is that the perception of the outsider is perceived from society and also from within the outsider itself. Othello, even though quite underestimating at times, believes that he is inferior to the Venetians, he states; â€Å"Happily for I am black and do not possess the soft parts of conversation chamberers have†. Grenouille also perceives himself as an outsider and is aware of the unwelcoming presence he bestows upon others. The fact that Grenouille devotes his life to creating a scent that will make him accepted and valued in society shows how he is aware if this. Another likeness between Othello and Grenouille is that both characters share a differing attitude to women that makes them outsiders in society. They are both somewhat oblivious to women as a sexual commodity, or do not show the affiliation to what would be expected of them. Othello shows an unusually lack of affection or infatuation towards his wife Desdemona. Othello has just been married to a young, and beautiful woman but does not seem to be besotted with her at all. This can be compared to Grenouille’s differing attitude to women. Although Grenouille does not have a rightful relationship towards the women he comes across, he is still obsessed with them, unlike Othello. The way Grenouille expresses this obsession or feeling, however, is still different to what would be expected of most adolescent men. Grenouille is not attracted physically to the women but is enthralled by them because of their scent. Grenouille can also be compared to Iago in the play Othello, as both are dismissive towards the values and ideologies of their context. Loyalty, love, reputation and honesty were all values of great importance in Elizabethan society. Iago’s actions, however, derive from hate, vengeance and deceit. Yet Iago is still considered an insider in Venice and only chooses to disregard the values of society. Grenouille on the other hand is completely isolated from society and struggles for any kind of acceptance. His brutal actions that go against the values of 18th century France may be partially influenced by the fact that he was not introduced to the morals of society in the first place, due to this isolation. Grenouille, having seen no human affection or experienced any of the values we inherit from human interaction such as love and compassion, find it difficult to distinguish right from wrong in his actions. Another text that has enhanced my understanding of how the concept of the outsider can be portrayed is the short film â€Å"The Story of Bubbleboy†. The film was produced in 2006 for the annual Australian tropfest short film festival. It was directed by Sean Ashcroft, produced by Kristy Fransen and stars Andrew Supanz. â€Å"The Story of Bubbleboy† is a film about a man named â€Å"Bubbleboy† who is trapped in the past and redeemed by the future. Bubbleboy is a sad outsider who lives alone due to a fanatic phobia of pointed and sharp objects. He is so afraid that he results to wrapping everything, including himself, in bubble-wrap. He never ventures from his house because the outside world is too terrifying and he cannot comprehend his fears. The film tells the story of his self-imposed exile from the world and how one day, driven by dwindling supplies he ventures out. Bubbleboy, while growing more confident as his adventure draws to an end, is ironically stabbed in an ally way. However, having been stripped from his protective bubbles in his last moments, Bubbleboy finds salvation and feels connected with the world. Because of Bubbleboy’s fear and self imposed isolation, he is regarded as an outsider by society. He completely avoids human contact and is scorned by the community. Bubbleboy longs for belonging but cannot comprehend his fears. A particular scene in the novel that conveys this idea is the beginning segment where we are introduced to Bubbleboy’s way of life and how it differs greatly from that of society. Here, filming techniques are used to show that Bubbleboy is an outsider. A flashing mirage of everyday â€Å"pointy† items is shown while a narrator explains Bubbleboy’s situation. There is then a long shot of Bubbleboy wrapped from head to toe in bubble-wrap huddling in a corner of his home. This initiates the idea that he is definitely an outsider and is uncomfortable with his surroundings. Close-ups are used to show the trepidation on Bubbleboy’s face to emphasize this point. A panning shot is then used to show how every household item has been covered in bubble-wrap, emphasizing the intensity of the problem. A birds eye view is also used here of Bubbleboy moving uncomfortably through his home; this suggests that he is a victim and is clearly suffering from his phobia. To show how Bubbleboy’s fears cause him to be perceived as an outsider by the community is the use of dramatic contrast between the outside world and his own. A view from the inside of the house looking out into the street brings a striking contrast of lively colors. When this is compared to the insides of Bubbleboy’s house, which is mostly colored in grays, the fact that he is an outsider is emphasized. Two young girls ride past the house and stop mocking Bubbleboy’s strange appearance from the window. Bubble boy then shuts his curtain and disappears. The use of the window here also symbolizes the physical barrier between himself and society. Contrast is used in a further scene in the film when illustrating the differences of Bubbleboy’s lifestyle to that of people his own age. Here, Bubbleboy is seen looking longingly into the window of a house where a lively and entertaining dinner party is taking place. A camera angle is used to show how Bubbleboy is looking up into the scene creating a sense of his inferiority and isolation. There are then a series of flashing images back and forth between the vibrant and colorful party life, with Bubbleboy’s lonesome isolation, again reinforcing this idea. When Bubbleboy finally faces his fears and leaves the house, more techniques are used to show how new and trepidating this is for him due to his experience as an outsider. For example when he opens the door into the outside world, a blinding and foggy light is emitted suggesting the unknown. Once outside the house, Bubbleboy again contrasts greatly with his surroundings as his general appearance is confronting and obviously very odd. Close-ups are used to show the looks of mockery and confusion on the towns people’s faces to convey this idea. The attitudes’ towards Bubbleboy as an outsider may be seen to change towards the end of the film. When he is ironically stabbed on his way home from his healing journey his is stripped of his bubble-wrap protection. It is here when society can accept him as his true self is revealed. This is shown by a woman rushing to the aid of injured Bubbleboy, truly concerned for his wellbeing. Bubbleboy’s perceptions of himself as an outsider can also be seen to change. A narrator’s voice is used to explain that at that point, Bubbleboy finds salvation, and for the first time feels connected to the world once outside his shell. There are not many similarities to the play Othello as the short film is such a vastly different text. Though it is clear that both characters; Bubbleboy and Othello are perceived as outsiders by society. However, it is Othello’s unforeseen and irrational actions that confirm his status as an outsider. While it is Bubbleboy’s out of the ordinary actions that enable him to be accepted into society. Also, Bubbleboy is portrayed to be a victim of the imposing views of society, as he is a lonely and lost character, but on the other hand Othello victimizes society itself when he undergoes the actions that make him an outsider. Evidently, the three texts; â€Å"Othello†, â€Å"Perfume† and â€Å"The Story of Bubbleboy† have all increased my understanding of the outsider as they illustrate a vast use of techniques and concepts that make a person an outsider in society.

Exponential Funtions

An exponential function is in which a constant base is raised to a variable power. Exponential functions are used to model changes in population size, in the spread of diseases, and the growth of investments. They can also accurately predict types of decline typified by radioactive decay. The essence of exponential growth, and a characteristic of all exponential growth functions, is that they double in size over regular intervals. The most important exponential function is ex, the inverse of the natural logarithmic function. Some examples of exponential functions in the real world are Ponzi Schemes, Pyramid Schemes, and Chain Letters. Ponzi Schemes are named after Charles Ponzi. They are fraudulent investment plans in which one person takes people’ money as an â€Å"investment† and doesn’t necessarily tell them how their returns will be generated, meaning that people’s returns on investments could be generated by anything. Pyramid Schemes are also fraudulent investment plans. They are structured like a pyramid, starting with one initial recruiter who recruits someone and requires them to pay a fee. In order to make their money back, the new recruit must recruit others under him. This continues until it becomes impossible for the newest layer of recruits to recruit enough people to make their money back. Chain letters are letters that can be received electronically or through snail mail. They aren’t illegal on their own but they can take the form of a pyramid scheme when they ask you to donate a certain amount of money to the people on a list, then delete the name of the first person on the list, add your name, and forward to a certain amount of people. By forwarding, you are asking people to give money with the promise of making money. The schemes work because they seem like they can go on forever but in reality, the scheme can only go on for a certain amount of time before it exceeds the population. When the cycle exhausts itself, participants lose money. These schemes should not be participated in because it is impossible to continue to make more money than you invest.

Sordaria Fimicola Crossings Linkage Analysis And Frequency Biology Essay

AbstractionThe intent of this probe is to find the frequence of meiotic divisions analyzed from intercrossed crossings collected from different strains of the fungus Sordaria fimicola. The experiment was conducted to show intercrossed crossings with MI and MII forms of ascospores within the asci. Over the class of seven yearss, the sample of Sordaria was incubated and fused under research lab conditions. In the outer countries of the blocks of agar, hyphae growing from the mutant sunburn strain ( t-g+ ) and wild-type black strain ( t+g+ ) was seeable through the â€Å" X-shaped † and outer rims of the Petri dish. By placing the sums of non-hybrid and intercrossed MI and MII asci, the observation of ascospores within the asci displayed the one possible form of MI, and the four possible forms of MII. The first portion of the laboratory experiment formed a hypothesis foretelling that 8 ascospores would ensue from two phases of Meiosis and one phase of Mitosis. After ciphering the frequence of traversing over, the map distance of the cistron to the kinetochore in the sunburn colored cistron observed was 32 map units, significantly different from the projected void hypothesis and expected 26 map units.IntroductionMany research probes utilize the common fungus Sordaria fimicola as a primary and dependable theoretical account being for exposing genetic sciences due to its house construction and life rhythm. Maping the distance between the tan cistron ( t-g+ ) and the centromere requires careful readying of a amalgamate sample of Sordaria already incorporating intercrossed and non intercrossed agreem ents in the ascus. By mensurating the sums of intercrossed MI ( non-crossover ) asci and MII ( crossing over ) asci, and ciphering the frequence of crossing over, the per centum of Asci may besides be calculated from the rate of crossing overs throughout the experiment. With an apprehension of frequence of crossing over, biological political orientations such as version, mutant, and recombination are expressed to the full within the experiment. The void hypothesis provinces that there will non be a considerable difference between the expected 26 map units and the ascertained map distance from the gathered category informations ( Helms, Kosinski, Cummings, 350 ) . Corporate attempt from each bench to cipher the right sum of asci assigned will surely impact the frequence of computation and rejection or credence of the void hypothesis. Biological development closely relates to the procedure of Sordaria crossing overs. Mendel ‘s Law of Independent Assortment is straight validated through the life rhythm of the fungus. As a member of Ascomycota, Sordaria fimicola patterns â€Å" rigorous sexual reproduction † , and provides the easiest visual image of miosis I, II, and mitotic division found in the ascus ( Volk ) . Some features that display the relaxation of observation prevarication in the Sordaria fimicola construction. Elongated nature of the ascus prevents the imbrication of ascospores. Therefore, carefully ruptured perithecia are justly lined up harmonizing to the production of miosis of sunburn and black spores: doing it comparatively easier to execute with more efficiency in numbering MI and MII forms. With its phenotype about tantamount to its genotype, due to the absence of another dominant allelomorph, the accurate physical traits are examined straight from the familial make-up of Sordaria ( H elms, Kosinski, Cummings, 334 ) . During intercrossed crossing overs in Prophase I, a four forms four haploid karyon, each of which so form two monoploid karyon, taking to a sum of eight ascospores in a individual ascus. Generally, Sordaria is a common fungus for genetic sciences research because of assorted grounds centered on the relaxation in the presentation of Meiosis, observation of construction, and/or behaviour of its life rhythm. Growth of the Sordaria fungus is a important factor and dependent variable carried out throughout the survey. The Ascomycota fungus merely grows under the conditions of break uping flora, doing it available for foods to be absorbed and increase hyphae growing and extension ( â€Å" Meiosis and Recombination in Sordaria Fimicola † ) . The consequences of this survey could lend to a broader cognition of mutant, biodiversity, and segregation. Further applications towards look intoing meiotic and mitotic crossing overs and map distances may shortly suggest new readings of Mendel ‘s Torahs.Materials and MethodsDuring hebdomad one of the experiment, wild -type black ( + ) and mutant sunburn ( T ) civilizations of Sordaria fimicola were obtained and while utilizing sterile technique, placed in a unfertile Petri dish divided into four subdivisions labeled for the two cistron colourss. After a metal spatula was disinfected into 95 % ethyl alcohol, it was heated utilizing a Bunsen burner and cooled for 10 to 15 seconds. While carefully raising the palpebra of the Petri dish somewhat to forestall taint, a block of agar was removed and transferred faced down for mycelium linkage and traversing agar. After re-flaming the spatula and reiterating proper sterile technique, the procedure was repeated with wild type ( + ) black strain and two mutation ( T ) sunburn strains positioned on the Markss of the Petri dish bespeaking the labelled asset ( + ) mark. After all necessary blocks of agar have been placed in the proper subdivisions of the Petri dish, the home bases were incubated in 22 to 24A °C temperature in the dark for 7 yearss. During hebdomad two, a home base of Sordaria fimicola incorporating the merger of black and tan strains were obtained for the analysis of loanblends and non loanblends within the 8 produced ascospores. Using a toothpick, the surface of the home base along the â€Å" X-shaped country † was scraped gently to roll up a sample of perithecia. A slide of perithecia was prepared by dropping H2O on a slide the collected perithecia, and so secured with a coverslip. Before puting the slide under a 10x Objective microscope, the slide was foremost gently pressured with a pencil eraser or tantamount force per unit area arrow tearing the perithecia without destructing the construction of the ascus. Using the microscope, slides were examined to turn up loanblend and non intercrossed asci. Class information on Numberss of MI, MII, Total Asci, per centum of crossing over, and frequence were calculated. A Chi -Square Test was performed since necessary. ( Helms, Kosinski, Cummings 336 -350 ) .Co nsequencesBench DataBench # of MI Asci 4+4 # of MII Asci 2+2+2+2 2+4+2 Entire ( MI+ MII ) % Asci Showing Crossover Frequency/2 ( Map Units ) A 8 12 20 60 % 30 Bacillus 5 5 10 50 % 25 C 13 14 27 52 % 26 Calciferol 9 11 20 55 % 27.5 Tocopherol 7 13 20 65 % 32.5 F 49 110 159 69 % 34.6 Gram 8 12 20 60 % 30Class Data ( sums )# of MI Asci 4+4 # of MII Asci 2+2+2+2 2+4+2 Entire MI +MII % of Asci Showing Crossover Frequency /2 ( Map Units )9917727664 %32I†¡A? = I? ( Observed – Expected ) A?__________________ i? I†¡A? = 16.291Expected P & lt ; 0.001, reject void hypothesis because 26 a†° 32 Degree of freedom ( d?’ ) = 1DiscussionBased on the single bench consequences, the figure of entire MI and MII asci counted depended on the figure of asci assigned per individual. For illustration, since there were merely two bench members in Bench B and each bench member in the category were assigned to happen and number 5 intercrossed crossing overs each, accordingly, there was a sum of 10 MI and MII asci for Bench B, shown on the tabular array. Harmonizing to the Biology Lab manual, 26 map units was the published map distance of the sunburn spore cistron from the kinetochore ( Helms 350 ) . The degree of frequence is closely related to how â€Å" slackly † or â€Å" tightly † linked cistrons are on the chromosome. For this experiment, the divergences between the frequences of the benches separately does non look drastic, although the consequences from Bench F shows a rebuff over computation of entire asci counted, hence ensuing with the highest frequence degree of 34.6, manner over the expected 26 map units. Analyzing the category informations as a whole, with 276 entire MI and MII Asci counted, the per centum ( % ) of Asci demoing crossing over was 64 % , giving a frequence of 32 map units. In order to warrant if there is a important difference between the 32 map units observed and the 26 map units expected, we perform a Chi -Square computation. With I†¡A? bing 16.291, my decision is that the category information demonstrates a much higher frequence than expected. The grade of freedom ( d?’ ) for the experiment was 1, from n-1, with 2 properties MI and MII. Since the chance value ( P ) was greater than ( & gt ; ) 0.05, we rejected the void hypothesis and accepted the alternate hypothesis asseverating that our ascertained frequence of 32 map units is significantly different from the expected 26 map units provided by published consequences. Possible Beginnings of mistake can be closely examined from the bench informations consequences. Besides an over computation of MI and MII asci, mentioned earlier that produced inconsistent figures, another beginning of misreckoning may hold come from counting/including intercrossed crossing overs that had a 3-1-2 or 2-3-1 unnatural agreement. Many times pupils were obligated to reconstitute a new slide of perithecia because their slide either did non hold adequate loanblends, or they ruptured the vulnerable perithecia falsely, turn outing really clip devouring. Overall, the conducted lab was precise in ciphering the frequence. Sordaria fimicola probes have multiple intents and applications. If conducted right, the fungus demonstrates an accurate agreement of spores ensuing from the meiotic and mitotic divisions. In a really similar research lab experiment, Meiosis and Recombination in Sordaria Fimicola, the same attacks of the two labs shared common processs including: traversing a wild type and mutant type cistron, turning the hyphae in decomposing flora, and ciphering the familial map distances. Calculating the figure of map units will be consistent throughout most Sordaria fimicola surveies because the frequence of traversing over is ever divided by 2 ( because frequence of recombination is precisely.5 of frequence crossed over ) proved in most probes. The relaxation of turning agar on Petri dishes and traversing a wild type and mutant cistron additions recombination of familial stuff, taking to additions in the scope of genotypes, paving a manner towards future additions in biological development.Menti onsHelms, Doris R. , Carl W. Helms, Robert J. Kosinski, and John R. Cummings. Biology in the Laboratory Third Edition: Biol 1161 & A ; Biol 1162: Intoduction to Biological Sciences Laboratory University of Houston. Third. New York: W.H. Freeman and Company, 1998. 334-352. Print. â€Å" Meiosis and Recombination in Sordaria Fimicola. † n. pag. Web. 8 Mar 2010. & lt ; hypertext transfer protocol: //www.lehigh.edu/~mrk5/bios116 % 20- % 20sordaria.pdf & gt ; . Volk, Tom. â€Å" Sordaria Fimicola, a fungus used in genetic sciences. † n. pag. Web. 6 Mar 2010. & lt ; hypertext transfer protocol: //botit.botany.wisc.edu/toms_fungi/mar2007.html & gt ; .

Prose and poetry Essay

Creative writing carries with it a myriad of challenges that are more than often conflicting or ironically similar. Let me start off by setting aside specific characteristics of languages. For instance, general talk typically employs ordinary language. Hence, verbs do what they are developed to do, and this also applies to nouns. Therefore, by examining diverse characteristics of language, it is crucial to assert that, such aspects as rhymes are characteristically poetic attribute of language and rarely is it employed in everyday language; when we do, we cackle because it assumes unnatural tone. And, yet, when employed decisively, or when brought to the forefront of an incident of lingo, rhyme acquires the dimensions of exquisiteness. In this regard, we have definitely treaded from mere lingo into sphere of literature. All in all, poetry and prose have common characteristics noticeably. This examination concludes that, there subsists a realm of equally poetic prose and prose poetry, meaning there subsists no broader variation involving the two. However, a poet cannot do without a well developed organization of language this is due to the fact that, poem thrives on the concepts of stanzas and rhymes among others. On the other hand, sentences lean towards prose, while metaphors are applicable to both poetry and prose (Bortolussi, et al, 2003). Prose writing generally tags along the standard regulations in syntax, punctuation, sentence structure and capitalization. Poetry time and again do not, this is commonly attributed to expressive grounds, and each word, interlude, is cautiously selected to say the most by using the minimal words. Therefore, for an individual to answer this question without being a poet, the remedy is to shun the use of stanzas, lines as well as meter. This is due to the fact that, prose is more of fiction or non fiction writing. Prose is the lingo of everyday communication, or the symbols medium that apes it. Sister Carrie (1900) is a classic novel authored by the reknowned American Theodore Dreiser. The novel revolves around the dramatic live of a young country girl who had moved to the big city in order to realize her own American dream. Examining this narration in the manner that Shakespeare treats his work, it would be pivotal to assert that, perhaps he could have developed a tragic sequel or another romantic episode. Consider the fact that, Shakespeare is commonly viewed as a feminist; therefore, there is a possibility that, he could have developed a satirical drama that resonate with the broader context of ordinary American folks. And this points to the fact that, he could have attempted to inject life to the characters as is exposed by his previous works. Equally, looking the manner by which Theodore Dreiser presented his case, it would be paramount to assert that, he could have changed the entire scope presented in The Tempest to fit his short stories fascinations. It is notable that, as an author he strongly employed prose to present his works which strongly departed from the realms of highly plotted fiction work. Therefore, if he was the one who had authored The Tempest, there is a possibility that, he could have presented a well articulated but a long novel. This has been established by the fact that, most of his works are crowded by bulk or long novels rather than short narratives. In essence, he could have revolved within an axis of creating a novel that catered for his audience who perhaps includes the middle class citizens. Moreover, Dreiser’s works extensively influenced the pragmatic writings by such authors as Stephen Crane, Jack London, as well as Ernest Hemingway. â€Å"The Idiot† is basically on the thought that, Myshkin is not naturally bright, this is due to the fact that, as the author point, the lad was not educated, and typically criss-crossed the world with a mindset of simplistic virtuousness. When verbalizing his views, he struggles to clear himself with Charlie Brown-like stuttering and insipidity. It is on this ground that, the inhabitants reputed that he was an idiot, but actually, he was a fine, sincere, considerate, and gracious being. The novel appears to posit that a pious man, navigating his paths in a people that are apprehensive with covetousness and ruthless avarice, will be judged as foolish idiot for valuing integrity, kindness, and the plain things in life. Possibly, it is due to his ingenuousness that all and sundry, including Dr. Schneider referred to him as an idiot. From the novel, Prince Myshkin appears to subsist as if in an undying status of contemplation, of absolute-calmness. Equally, it looks as if that via Myshkin, Dostoyevsky perceives the spiritual familiarity as an enjoyable unknowingness. Therefore, in regard to chapter eleven, it can be assumed that, though the Prince was treated as an idiot, he loved to keep it simple and sincere. Hence, he opted to be uncomplicated rather than be wicked. In principal, the prince could not have objected or denied to be called an idiot, this can be linked to the fact that, he had spent a quite long time in the sanitarium where he had gone to seek medication. This coupled with his personal principles made him to withstand despite the fact that, he was innocent and candid in his ways. In as far as he was concerned, the remark fits considerably. Conceivably, this is why Dostoevsky prefers to use it now and then. Examining the kind of people who were surrounding the Prince, it is instrumental to realize that, the nature of their characteristics conflicted with what the Prince believed. Therefore, the features of virtue which he cherished and treasured were viewed and interpreted as a sign of weakness. Hence, the usage and application of the word idiot acquired another shape and meaning. A name or a title carries a wealth of honor and prestige. Therefore, a name can be said to be a sign of honor or as well prestige. To answer the question posed, it would be pragmatic to posit that, there are deep-rooted mystical powers in the names we give to others or objects. For instance, on Christian perspective, it is widely claimed that, one of the major act after creation that Adam was assigned was to name each and every beast. Hence, one of the most instrumental aspect of a parental power or authority is to decide and determining the nature of the name to be given to his or her child. Thus a name or a title may depict personality or ones social status as well as ones position in any given community. Also a name carries with it cultural and ethnic identity. Exploring the aspects of the novel The Idiot Fyodor Dostoyevsky, one cannot fail to realize the effect of a name on an individual. It is on that principle that, when the prince is addressed or viewed as an idiot because of his views and moral uprightness, the larger society perceived him to be so. Thus a name holds particular attributes that are allied to the bearer of that given name or title. From the ancient time, to the contemporary world today, names or titles are held in high. I consider that a name can assist to mould you into what you become but not establish who you will be. In conclusion, names as well as titles are given to reflect a sort of identity. There are those who take certain names or title due to ethnic identity, while others are propelled to do due to religious obligations. However, going back to the query â€Å"what is in a name or a title? Perhaps the answer may look ridiculous, but the general answer to this question is typically that nothing is in a name, and the factual person is within. Nevertheless, at some point in a time when individuals were graded in a class, it would be quite clear to assert that literature had a system of bringing or creating a new connotation to that subject (Bortolussi, et al, 2003). Reference Bortolussi, M; Dixon, P. (2003). Literary Response. N. Y: Routledge.