Friday, November 29, 2019
My Living Room free essay sample
Affected by my mother hobby, I bought two small artificial flower bases to decorate for my room in Canada. Actually, before going to school I see them and feel very active to start with a new day. The living room is designed by my mother with a very big and warm sofa and a sofa table. There are six tea cups and a tea pot above the sofa table also. The whole tea pot is very beautiful and always used to welcome the guests who visit our home. My father has a collection of wines and he puts all kinds of wines to the sideboard. Furthermore, in the evening the lights will be turned on to make the sideboard shine sparklingly. They are very valuable to my father so my brother, sister and I hardly stand near that sideboard. Because we are afraid of broking them and sure we will be punished. We will write a custom essay sample on My Living Room or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page When shopping in Superstore, I usually notice some kinds of wine which my father likes. I attend to buy some wine bottles for my father when I come back home to visit. Our family can enjoy singing karaoke or watching movies together with all modern facilities such as the amply, the big TV and the DVD player facilitated by my father. Last week, when I joined to a friendââ¬â¢s party, there was a big TV and we watched an action movie together. That reminded me to my familiar living room. And the best thing I like in the living room is my piano which always makes me feel relax when I have a pressure in life. I have played the piano since I was fifteen years old. While I am playing the piano, I feel happy so much and seem like all the stressful things are getting out of my head. So that sometimes I feel stressful I will play the piano. Here I donââ¬â¢t have the piano to play so I choose some classic songs played by piano to listen for entertainment. Besides, the whole living room is full of the painting oil pictures were painted by my sister. She enjoys painting so much and her pictures are wonderful. Before I come here, she gave me her favorite picture in order to hang in my room and I really appreciated her action. There is also a bookshelf with a lots of books and some of my passion books: Harry potter, Chicken soupâ⬠¦ My family member often spend spare times reading book here. Now I still keep the habit to read books before I go to sleep. I really miss my living room in my hometown and in the future if I can hire the house with a living room here I will decorate it the same with my hometown living room.
Monday, November 25, 2019
HOW TOOLS TRANSFORMED PROTOHUMANS essays
HOW TOOLS TRANSFORMED PROTOHUMANS essays According to archeological and physical record, tool use has had an enormous effect in the transformation of proto humans into modern humans. What stimulated tool use was the proto humans intrest in new and easier ways to do things. With the introduction of tools, body morphology changed and reproductive fitness increased. Evolution did not happened over night. It took 4.5 million years for humans to get where they are today. Scientists have concluded that about 3.5 million years ago, there was the first proto human. A proto human resembles extinct hominid populations that had some but not all the features of a modern homo sapien. Such features were prolonged moments of bipedality, change in the pelvis and the reduction of the sagittal crest. (Diamond 1992 pg 34) In order for this proto human to evolve into a human, it needed tools. Some of the tools might have been discovered by accident or by early creative geniuses? The way they discovered the tools is unknown, but the changes the tools made were to the physical morphology and the body behavior. They began to walk upright, gathered supplies, cut food, and used weapons.(Diamond 1992 pg. 40) About 3 million years ago, after generations of learning how to use these tools, the hominid came out of the trees, and stayed mostly on the ground. The animal had an abundance of food and water and lived in a population of; on the ground proto-human animals. Some adapted to ground life and started to become bipedal, but more than half of them stayed on all fours. The bipedal hominids vision increased, making it able to see and do more. It obtained the ability to use weapons more effectively and efficiently because it had arms with agility. It found all the good meat and valued resources then eventually took over the whole community. Soon after the bipedal creatures gained control t ...
Friday, November 22, 2019
Strategic plan for LEGO Group Company Essay Example | Topics and Well Written Essays - 2250 words
Strategic plan for LEGO Group Company - Essay Example The company was started in the founderââ¬â¢s workshop where Ole Kirk Christiansen created toys made of wood in 1932, but the first famous plastic brick was developed in 1949. The name of the company was developed by Christiansen from a Danish term meaning ââ¬Å"play wellâ⬠, however, the company states that LEGO means ââ¬Å"putting togetherâ⬠or ââ¬Å"assemblingâ⬠in Latin, but this translation is liberal. In 1947, the company obtained samples of interconnecting bricks manufactured by Kiddicraft through the manufacturer of injection molding equipment based in London that had an interest in the development of equipment sales in Denmark. Initially, Christiansen was skeptical but Kiddicraft convinced him to make the plastic bricks instead of the wooden toys he had been making. In 1949, the LEGO Group started making bricks that were similar to the manufactured by Kiddicraft while referring to them as ââ¬Å"Automatic Binding Bricksâ⬠, using cellulose acetate whil e being developed in the same spirit of the wooden blocks which could be stacked on each other.Nonetheless, the plastic bricks have the ability to be interlocked with each other as they contain a number of round studs on the upper side and a hollow bottom that is rectangular. These blocks were able to stick to each other but not too tightly to make it difficult to be pulled apart. Using plastics to develop toys was not highly favored by retailers as well as consumers at the time when LEGO Group began manufacturing its toys.
Wednesday, November 20, 2019
Human Rights Essay Example | Topics and Well Written Essays - 4000 words - 2
Human Rights - Essay Example (Fenwick, H.; ââ¬Å"Civil Liberties and Human Rightsâ⬠; 2007). The answer lies in the fact that Section 3 of the Human Rights Act, as also many other sections, hedges its bets by saying that, ââ¬Å"so far as it is possible to do soâ⬠, primary legislation and subordinate legislation must be read and given effect in a way which is compatible with the Conventionââ¬â¢s rights. For instance, Section 12 of the Human Rights Act emphasises the role of courts in defending the right to freedom of expression, and states that this Section applies if a court is considering ââ¬Å"whether to grant any relief which, if granted, might affect exercise of the Convention right to freedom of expressionâ⬠. (Coppel, J; ââ¬Å"Human Rights Act 1998: Enforcing the European Convention on Human Rights in Domestic Courtsâ⬠; 1999) Moreover, it is considered unlawful for a court to act in a manner contrary to a Convention right ââ¬Å"unless obliged to act in such a way by a provision of primary legislationâ⬠. (www.highbeam.com/doc/IP3-77629772.html). (www.opsi.gov.uk/acts/acts 1998/ukpga/19980042_en_1) Incidentally, discretionary increase in police powers has landed the UK Government at least once in the soup. Article 15 of the Convention states in Para 1 that ââ¬Å"in times of war or other public emergency threatening the life of the nation, any contracting party may take measures derogating from its obligations under the Convention to the extent strictly required by the exigencies of the situation, provided that such measures are not inconsistent with its other obligations under international lawâ⬠. However, in the case of Brogan and others v United Kingdom (1988; II EHRR 117) four persons were arrested on the suspicion that they were provisional members of the IRA, and detained under Section 12 of the Prevention of Terrorism Act 1984.They were released after four-to-six days. They claimed that Britain had violated several parts of the Article 5 of the
Monday, November 18, 2019
Legal Aspects of Contract Adminitration (LAW) Coursework
Legal Aspects of Contract Adminitration (LAW) - Coursework Example The contract becomes valid only if it fulfilled all the legal requirements. Contract is the agreement enforceable by law so that agreement may be either for tender or for acceptance. The offer become valid only if it meets the entire requirement specified in the contract law in Australia. Those are as follows, There are normally six important ingredients essential for lawfully connecting the contract development. That are (1) agreement it consists of offer and acceptances made by the parties to the contract, (2) Offer must be made for the Consideration either in terms of money, property etc., (3) ability to enter lawful relationship between the parties to the contract it means the party to the contract must possess sound mind as well as majority of age, (4) Intention by the groups to enter into lawful affiliations, (5) must fulfill the requirement of the valid contract and (6) certainty. Contract may sometimes also turn into illegal contract if it fails to fulfill the requirements. The Australian lawful scheme is based on a basic faith in the rule ofà law, fairness and the autonomy of the judiciary. An offer may be broken by revocation, rejection or drop. An acceptance is, usually conversation; a whole and ineffectual assent to the complete the circumstances that include an offer. Inten tions must be understandable and extremely a great deal evident previous to creation whichever contract. In this particular case Mr. A who thinks that he had concluded an agreement through Mr. B to buy a one third interest in D pvt. Limited from Mr. But at the same time Mr. B sold the same to Mr. C. On the other hand Mr. A notifies that he thinks an agreement among Mr. A and Mr. B to but the interest had previously been arrived at as the effect of two or three emails exchanged through Mr. B. In The first mail itself Mr. A sent Mr B a draft contract prepared through the lawyer on with no prejudice base. Second mail was sent by the Mr. B to Mr. A. In this
Saturday, November 16, 2019
Chemical Equilibrium And Ph Biology Essay
Chemical Equilibrium And Ph Biology Essay In a chemical process, chemical is a state in which cocentration of reactants and the concentration of products does not change overtime i.e when the forward reaction proceeds at the same rate as backward reaction and it exists in dynamic equilibrium. The laws of chemical equilibrium define the direction in which a chemical reaction will proceed, as well as the quantities of reactants and products that will remain after the reaction comes to an end. An understanding of chemical equilibrium and how it can manipulated is essential for anyone involved in Chemistry and its applications. The fundamental equation provides the basis for understanding chemical equilibrium. pH is Quantitative measure of stength of acidity and alkalinity of solution. When the concentration of H+ and OH- ions in aqueous solution are frequently very small numbers and there fore inconvenient to work with, Soren Sorensen in 1909 proposed a more practical measure called pH. It is defined as the negative of the hydrogen ion concentration. pH= -log[H+]. Acidic and basic are two extremes that describe a chemical property chemicals. Mixing acids and bases can cancel out or neutralize their extreme effects. A substance that is neither acidic nor basic is neutral. The pH scale measures how acidic or basic a substance is. The pH ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic. HISTORY:- The concept of chemical equilibrium develop after Berthoket (1803) found that some chemical are reversible. For any reaction to be equilibrium, rate of forward reaction is equal rate of backward reaction, so at equilibrium nearly all the reactant are used up for to left it hardly any product formed from reactant. In 1864 Guldberg and waage showed experimentally that in chemical reactions an equillibrium is reached that can be approached from either direction. They were apparently the first to realize that there is a mathematical relation between the concentration of reactants and products at equillibrium. In 1877 van`t hoff suggested that in the equillibrium expressions the concentrationof each reactant should appear to the first power, corresponding with the stochiometric numbers in the balanced chemical equation. The concept of p[H] was first introduced by Soren Peder Lauritz Sorensen at the carlsberg laboratory in 1909 and revised to the modern pH in 1924 after it became apparent that electromotive force in cells depended on activity rather than concentration of hydrogen ions. TYPES OF EQUILLIBRIUM:- Physical equillibrium:- Equillibrium between two phases of the same substance is called Physical equillibrium because the changes that occur are physical processes. e.g; The vaporization of water in a closed container at a given temperature is an example of physical equilibrium. In this instance the number of H2O molecules leaving and the number of returning to the liquid phase are equal. H2O(l) = H2O(g) The study of physical equilibrium Yields useful information such as the equilibrium vapour pressure. If a reaction is:- aA + bB = cC + dD where a, b, c and d are the stoichiometric coefficients for the reacting species A, B, C , and D. For the reaction at a particular temperature K = (C)C (D)d (A)a (B)b where K is the equilibrium constant. This equation was formulated by cato Guldberg and Petr Wage in 1864. It is the mathematical expressions of their law of mass of action, which holds that for a reversible reaction at equilibrium and a constant temperature, a certain ratio of reactant and product concentration has a constant value K. and the equilibrium constant does depend on the volume, concentration, catalyst, pressure e.t.c. It only depends upon temperature. The equilibrium constant ,then, is defined by a quotient, the numerator of which is obtained by multiplying together the equilibrium concentration of the products, each raised to a power equal to its stoichiometric coefficient in the balanced equation denoted by Q. If Q If Q > K then reaction takes backward reaction. If Q = K then reaction is at equilibrium state. The magnitude of equilibrium constant tells whether the reaction favors the products or reactant. If K >> 1 , the equilibrium will lie to the right and favours the products. If K Homogeneous equillibrium:- The term homogeneous equilibrium applies to reactions in which all reacting species are in the same phase. E.g; An example of homogenous gas phase equilibrium is the dissociation of N2O4. N2O4 (g) = N2O4 (g) aA(g) = bB(g) then, Kc = (B)b/(A)a the concentrations of reactants and the products in gaseous reaction can also be expressed in terms of their partial pressures. At constant temperature the pressure P of gas is directly related to the concentrations in mol/ L of the gas. i.e; P =(n/V)RT. And the expressions can be given by Kp = PbB/PaA where Pa and P b are the partial pressure of A and B. After substiuting these relations in to the expressions, we get [Kp=Kc(RT)b-a] If b-a is equal to zero, then reaction is at equilibrium. If b-a > 0 , then backward reaction is favourable. If b-a Heterogeneous equilibrium:- A heterogeneous equilibrium results from a reversible reaction and products that are in different phases. e.g; when calcium carbonate is heated in a closed vessel, the following equilibrium is attained. CaCO3(S = CaO(S) + CO2 If a reaction aA(S) + bB(s) = cC(s) + dD(g), the concentration of a solid , like it`s density , is an intensive property and does not depend on how much of the substance is present. In thermodynamics , the activity of pure solid us 1. Thus yhe concentration terms for A,B and C are unity. So, Kc = [D]d Similarly , the activity of a pure liquid is also 1. Thus if a reactant or a product is a liquid, we can`t omit in the equilibrium constant expressions. Also we can express the equilibrium constant as Kp = P(D)d . Factor Affecting Equilibrium:- Chemical equilibrium represents a balance between forward and reverse reactions. In most cases, this balance is quit delicate. Change in experimental condition may disturb the balance and shift the equilibrium position so that variable can be controlled experimentally are concentration, pressure, volume and temperature. Effect of change of temperature:- A change in concentration, pressure, or volume may alter the equilibrium position , that is, the relative amounts of reactants and products but it dose not change the value of equilibrium constant .Only a change in temperature can alter the equilibrium constant. At equilibrium at a certain temperature, the heat effect is zero because there is no net reaction .If we treat heat as though it were a chemical reagent, than a rise in temperature adds heat to the system and a drop in a temperature removes heat from the system .As with a change in any other parameter ,(concentration, pressure, or volume), the system shift to reduce the effect of the change. Therefore, a temperature increase favours the endothermic direction (from left to right of the equilibrium equation ) and a temperature decrease favours the exothermic direction. In summary, a temperature increase favours an exothermic direction and a temperature decrease favours the exothermic reaction. The effect of changing temperature on an equilibrium constant is given by the van t Hoff equation d ln K/ d T = H/RT2 Thus, for exothermic reactions, (ÃŽâ⬠H is negative) K decreases with an increase in temperature, but, for endothermic reactions, (ÃŽâ⬠H is positive) K increases with an increase temperature. An alternative formulation is d ln K/ d(1/T) = H/R At first sight this appears to offer a means of obtaining the standard molar enthalpy of the reaction by studying the variation of K with temperature. Effect of change of pressure and volume:- Change in pressure ordinarily do not effect the concentration of the reacting species in condensed phases(say, in an aqueous solution) because liquids and solids are virtually in compressible. On the other hand, concentration of gases are greatly affected by change in pressure. The greater the pressure, the smaller the volume, and vice versa. Note, too, that the term (n/V) is the concentration of the gas in mol/L, and it varies directly with pressure. In general an increase in pressure (decrease in volume) favours the net reaction that decreases the total numbers of moles of gases (the reverse reaction, in this case), and a decrease in pressure (increase in volume) favours the net reaction that increases the total numbers of moles of gases(here the forward reaction).For reaction in which there is no change in the numbers of moles of gases, a pressure (or volume)change has no effect on the position of equilibrium. Effect of catalyst at equilibrium :- Catalyst does not affect the the equilibrium constant. And it can not shift the equilibrium positon. Catalyst only enhance the rate of reaction to reach the equilibrium position. Effect of concentration of reactant:- Effect of concentration change the position of equilibrium. If we increase the concentration of the products shifts the equilibrium to left, and decreasing the concentration of the product shifts the equilibrium to right. These results are just predicted by Le Chatelier principle. Le chatelier principle:- If an external stress is applied to a system at equilibrium, the system adjusts in such a way that the stress is partially off set as the system reaches a new equilibrium position. pH -A MEASURE OF ACIDITY. Because the concentrations of H+ and OH- in aqueous solution are frequently very small numbers and therefore inconvenient to work with, Soren Sorensen in 1909 proposed a more practical measure called pH. The pH of a solution is defined as the negative logarithm of hydrogen ion concentration in (mol/L): pH = -log [H3O+] or pH = -log [H+] The negative logarithm gives us a positive number for Ph, which otherwise would be negative due to small value of [H+]. Furthermore the term [H+] permits only to the numerical part of the expression for hydrogen ion concentration, for we cant take the logarithm of units. Thus, like the equilibrium constant, the pH of a solution is a dimensionless quantity. Acidic solutions: pH is less than 7.00. Basic solutions: pH is more than 7.00. Neutral solutions: pH is equal to 7.00. Notice that pH increases as [H+] decreases. For real solutions, activity usually differs from concentrations, sometimes appreciably. Knowing the solute concentration, there are reliable ways based on thermodynamics for estimating its activity, but the details are beyond the scope of text. Keep in mind, therefore, that the measured pH of a solution is usually mot same as that , because the concentration of the H+ ion in molarity is not numerically equal to its activity value. Although we will continue to use concentration in our discussion, it is important to know that this approach will give us only an approximation Of the chemical process that actually take place in solution phase. In the laboratory, pH of a solution is measured with a pH meter. List of some pH of a number of common fluid, the pH of a body fluid varies greatly, depending on location and function. The low pH (high acidity) of gastric juices facilitates digestion whereas a higher pH of blood is necessary for transport of oxygen. APPLICATION OF pH:- A pH indicator is substances that change colour around a particular pH. It is weak acid or weak base and the colour changes occur around 1pH unit either side of its acid dissociatian constant. For.ex. Naturaly occuring indicator litmus is red in acid solution and blue in alkaline solution. REFRENCES:- P.W. Atkins, Physical Chemistry, third edition, Oxford University Press, 1985. F.van Zeggeren and S.N Steery,the computation of chemical equilibrium,1920. W.R.Smith and R.W.Mission,chemical equilibrium Analysis. RAYMOND CHANG, Williams college.
Wednesday, November 13, 2019
Comparing Relationships Between Gods and Men in Prometheus Bound and Job :: Comparison Compare Contrast Essays
The Relationships Between Gods and Men in Prometheus Bound and Job à à à à The question of why bad things happen to good people has perplexed and angered humans throughout history. The most common remedy to ease the confusion is to discover the inflicter of the undeserved suffering and direct the anger at them: the horror felt about the Holocaust can be re-directed in the short term by transforming Adolf Hitler into Lucifer and vilifying him, and, in the long term, can be used as a healing device when it is turned into education to assure that such an atrocity is never repeated. What, however, can be done with the distasteful emotions felt about the victims of Hiroshima and Nagasaki? Surely the citizens of those two cities did not themselves directly provoke the government of the United States to deserve the horror of a nuclear attack. Can it be doubted that their sufferings were undeserved and should cause deep sorrow, regret, and anger? Yet for the citizens of the United States to confront these emotions they must also confront t he failings of their own government. A similar problem is found in two works of literature, Aeschylus' Prometheus Bound and the book of Job found in the Tanakh. In each of these works a good man is seen to be suffering at the hand of his god; Prometheus is chained to a rock by Zeus who then sends an eagle to daily eat Prometheus' liver while Job is made destitute and brought to endure physical pain through an agreement between God~ and Satan. To examine the travails of these two men is to discover two vastly different concepts of the relationship between god and man. à The first question which must be addressed is, "Why have these men been made to suffer?" To simply say that Zeus or God is displeased is not enough, and to say that Prometheus and Job have sinned is confusing. Most Western readers approach these works with a pre-conceived notion of sin which has been born out of the Judeo-Christian theological tradition a tradition which dictates that there are specific moral rules which must be followed, and to transgress them is to sin. While this interpretation of sin may be functional for a reading of Job, it is useless for understanding Prometheus Bound. Comparing Relationships Between Gods and Men in Prometheus Bound and Job :: Comparison Compare Contrast Essays The Relationships Between Gods and Men in Prometheus Bound and Job à à à à The question of why bad things happen to good people has perplexed and angered humans throughout history. The most common remedy to ease the confusion is to discover the inflicter of the undeserved suffering and direct the anger at them: the horror felt about the Holocaust can be re-directed in the short term by transforming Adolf Hitler into Lucifer and vilifying him, and, in the long term, can be used as a healing device when it is turned into education to assure that such an atrocity is never repeated. What, however, can be done with the distasteful emotions felt about the victims of Hiroshima and Nagasaki? Surely the citizens of those two cities did not themselves directly provoke the government of the United States to deserve the horror of a nuclear attack. Can it be doubted that their sufferings were undeserved and should cause deep sorrow, regret, and anger? Yet for the citizens of the United States to confront these emotions they must also confront t he failings of their own government. A similar problem is found in two works of literature, Aeschylus' Prometheus Bound and the book of Job found in the Tanakh. In each of these works a good man is seen to be suffering at the hand of his god; Prometheus is chained to a rock by Zeus who then sends an eagle to daily eat Prometheus' liver while Job is made destitute and brought to endure physical pain through an agreement between God~ and Satan. To examine the travails of these two men is to discover two vastly different concepts of the relationship between god and man. à The first question which must be addressed is, "Why have these men been made to suffer?" To simply say that Zeus or God is displeased is not enough, and to say that Prometheus and Job have sinned is confusing. Most Western readers approach these works with a pre-conceived notion of sin which has been born out of the Judeo-Christian theological tradition a tradition which dictates that there are specific moral rules which must be followed, and to transgress them is to sin. While this interpretation of sin may be functional for a reading of Job, it is useless for understanding Prometheus Bound.
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