Social Questions and Multicultural Education Research Paper

Social Questions and Multicultural Education - Research Paper Example Also in regards to the sociological question, a class is defined as an organization of a given social grouping; which are characterized by similar rights, perceptions if not qualities, and duties. These are most often founded innately on one side and through socialization on the other side. As an end, a class is deemed with the task of founding a culture since there it forebears a routine within the organization in question. It is, therefore, no surprise that the local societies, as well as the world over, are usually classified. This alone describes the functionality definition of â€Å"class.† (Askew & Carnell, 1988). This refers to an identification paradigm based on sexuality, partly describing the gender but broadly established on roles. It uses both the psycho-social identities to the physical parametric observations and ends with individualized perceptions of themselves. In the long run sexual identity focuses on the various customs within an individual about their sexu al life. This is different from other the observation in other animal kingdoms which is specific to the task of reproduction. Sexuality, viewed in this regard in the human kingdom would just be but the tip of an iceberg. Why is this so? This is because human beings have in the recent past lived in such an advanced era that they have changed the original mode of reproduction. In the modern times, reproduction can be fully made a success even in a modern laboratory (Department for Education and Skills, 2007).... From the foregoing and relevant to the subject area, ability generally connotes the cognitive ability. For this reason, a concrete definition of this term must be tied to the intuitive values stemming from the capabilities definition of ability. In a nutshell, ability is thus the mental capacities within an individual to perceive and reason out. From its innate nature, it is tied to the fact that nature depicts a system of variety which displays the fact that various entities exist in different dimensions. This is because a student, for example, who doesn’t get well acquainted with simple skills, taught; which are in contrast viewed by another as â€Å"chicken feed† displays such a reality (Weare, 2004). Disability In contrast to ability, disability denotes cognitive incompetence an individual suffers in their endeavors to add up to new skills, attitudes, knowledge and dispositions. The person in question is a victim of natural co-existences. This makes them have gradua l control over their entire experiences and ultimately may have a grasp of their aspired courses. What this means is that the person in question doesn’t suffer a permanent condition, though long lasting in nature; this is however remedied through the incorporation of frequent practices on specified tasks. For a long time however, such an identity has been faced with innumerous challenges due to the massively widespread alienation. This has been from parallel classes as well as some expertise personnel who have most often acted unprofessionally to help avert the same consequences often pre empted. This is referred to as stereotyping whence the expert, for instance, the teacher in a class room situation, classifies

Starbucks and the Risse of the City State Essay Example | Topics and Well Written Essays - 750 words

Starbucks and the Risse of the City State - Essay Example The sentiments of opposition often provide us with newer ways of carrying out the task and we can prepare ourselves even for adverse circumstances. For example; it is said that, "If you want peace, be ready to fight." and Sun Tzu further stated that, "If you want a real shape, firstly be unshaped." During the last century power basically implied military power and the ruling power. But as we enter into the 21st century, economic power seems to have taken over all other types of power. While earlier the 'power' used to be shown in the battlefield, now it the company's boardrooms which plan out the fight. The fight is then executed with the help of well laid out marketing and promotional strategies. The levels of prosperity of the citizens and the economic power of the country are now increasingly being used by nations as a tool to exert pressure on other nations. This way these nations are enjoying glory without fighting on the battlefields. Like Sun Tzu says; "Glory without fighting is the best." New world order says that, 'do not kill your enemies, but use them to become stronger.' Some people prefer to call the global footprints of multinational corporations as examples of imperialistic designs from the developed nations. These are termed as example of countries using their economic power with their companies. Starbucks is one such example where the company has established itself well in many countries around the world. Starbucks has been a well known brand for specialty coffee offering fresh rich-brewed coffees, espresso beverages, a range of pastries and confectionary items, coffee-related accessories and equipment, and a line of premium teas under its brand name. The company has opened its outlets in about 43 countries outside the USA1. Starbucks was also able to enter into strategic alliances with other companies and make fullest use of the opportunities to widen its customer base. Sun Tzu says, "Divide your soldiers and give them prize for booty and do not fight in the unimportant area, fight for fatal places." This seemed to be basic inspiration behind the strategy of Starbucks. Starbucks has established itself well in big cities and is offering a tough competition to rival companies. With different types of offers to customers in different locations and on different occasions, the company has been able to take fullest benefit of localizing the products and services. As per Sun Tzu the rule of 'strategic capturing' is "To fight and conquer in all your battles is not supreme excellence; supreme excellence consists in breaking the enemy's resistance without fighting." Starbucks has been able to establish itself as a company in key cities around the world, where they can cater to the people with time and money to be spent with their friends and families. So far they have been able to open and popularize their outlets in places like New York, London, Tokyo, Dhaka, Beijing, Istanbul etc. The manner in which Starbucks has been able to successfully implement its strategies, despite oppositions from some quarters is an indication of the script written by Sun Tzu and followed by the company. Sun Tzu stated, "There are roads which must not be followed, armies which must be not attacked, towns which must be besieged, positions which must not be contested, commands of the sovereign which must not be obeyed." Despite the

CBS news program Essay Example for Free

CBS news program Essay The broadcast news source that I watched was the CBS Evening News with Katie Couric, which was a half hour evening broadcast. Couric sat behind a desk, facing the viewer the entire time. The top stories on this broadcast were the oil spill in the Gulf of Mexico, the Kansas City tornadoes, and the â€Å"Make or Break† mission in Afghanistan. Each story received about five minutes of airtime. Couric narrated statistics of how much oil has leaked and the length of coastline that has been affected in Louisiana and the Gulf of Mexico while live footage showed clean-up efforts taking place along the coast. The story was made relatable for the viewer by explaining that the amount of oil spilled is enough to cover all of New York City. It was lent credibility by an on-site reporter and correspondent that interviewed both local residents involved in the clean-up and with experts working to stop the oil leak. There was no attention paid to the source of the leak or to anyone being held responsible for the accident. The story about the tornadoes in Kansas City featured footage from a resident’s video camera of the funnel cloud approaching, along with local news footage of the damage to local homes and businesses. Couric, the on-site correspondent and a representative from the National Weather Service delivered their news in professional, almost formal tones. This gave the program the feel of being informed, but somewhat impersonal. The only statistics given were the death rate numbers, and the story ended by stating that more tornadoes were headed toward the area. Couric’s coverage of the â€Å"Make or Break† mission taking place in Afghanistan was the third top story. It discussed the efforts to reclaim the city of Khandahar from the Taliban and gave background information into previous operations in the war between the United States and the Taliban. In-depth explanations were given of where the US troops will go and what they will do. A correspondent reporting from the Pentagon made the story seem more credible, even as he explained President Obama’s reasoning behind the troop surge. The cable news source that I viewed was Fox News on the Fox News Network. It was hosted by Shepard Smith. This was also a half hour evening news broadcast. The top three stories on the show were the Kansas City tornadoes, the oil spill in the Gulf of Mexico, and the theft of a memorial cross for World War I veterans from a Mojave Desert monument. Air time for each top story was about five minutes, similar to Couric’s program. Shepard Smith delivered all of his dialogue standing and was positioned at various spots throughout the broadcast, as opposed to Couric who stayed seated. There were fast graphics, upbeat background music, and a news wire line across the bottom of the screen delivering more headlines during the top stories, all features not included in the CBS broadcast. The story about the Kansas City tornadoes lasted about five minutes. In included local news footage shot by a Kansas City news program, an in-studio commentator and weather expert that discussed the tornado system with Smith, and footage of local survivors describing what they had seen and heard and detailing the damage to their personal property. Statistics about deaths and injuries were given, and the segment ended with Smith saying that another storm system was on its way. When discussing the oil spill in the Gulf of Mexico, Smith delved deeper into the Capital Hill investigation of BP, Transocean, and Halliburton in the attempt to determine which company was responsible for the accident. There was also more attention given to the tanker explosion that caused the accident and there was mention of the crew that died in the explosion, information that was not included in the CBS news program. This made the Fox coverage of the oil spill seem more informed and more personable. It was made more personable by Smith’s opinion that someone should be held accountable. The story about the World War I monument being stolen seemed more of a human interest story, and it was interesting that this was made a top story on the program. In discussing the theft of the monument that had stood in the Mojave Desert since 1934, Smith talked with a veteran that was coordinating an effort to have the monument recovered along with a legal correspondent that explained the ongoing debate over whether the monument should be allowed to be erected in the spot in the first place. Overall, the basic layout of the programs was the same. Each top story was given about five minutes of air time and each featured on-site correspondents, experts, video footage, and interviews. The Fox News broadcast was made more engaging with more music, a host that moved around and stood while he spoke, offered jokes and offhanded opinions about the news stories, and in-studio correspondents to discuss them. The CBS broadcast was more serious and toned-down, with Couric being the only correspondent in the studio, tamer graphics, and no news wire. I feel that both proved ample credibility with their straightforward delivery of the facts. But I feel that the Fox News broadcast was more personable and relatable because instead of just showing footage of what’s happening right now like the CBS program did, Fox’s program gave more background information and opinions from more individuals to help the viewer understand the issues and the stories better. Similarities were evident for the basic purpose of news delivery, but the differences occurred because of a different attitude towards the viewer.

Crystal Field Theory Versus Valence Bond Theory Engineering Essay

Crystal Field Theory Versus Valence Bond Theory Engineering Essay Crystal field theory is a model that describes the electronic structure of transition metal compounds, all of which can be considered coordination complexes. CFT successfully accounts for some magnetic properties, colours, hydration enthalpies, and spinel structures of transition metal complexes, but it does not attempt to describe bonding. CFT was developed by physicists Hans Bethe and John Hasbrouck van VlecK in the 1930s. CFT was subsequently combined with molecular orbital theory to form the more realistic and complex ligand field theory (LFT), which delivers insight into the process of chemical bonding in transition metal complexes. In the ionic CFT, it is assumed that the ions are simple point charges. When applied to alkali metal ions containing a symmetric sphere of charge, calculations of energies are generally quite successful. The approach taken uses classical potential energy equations that take into account the attractive and repulsive interactions between charged particles (that is, Coulombs Law interactions). Electrostatic Potential is proportional to q1 * q2/r where q1 and q2 are the charges of the interacting ions and r is the distance separating them. This leads to the correct prediction that large cations of low charge, such as K+ and Na+, should form few coordination compounds. For transition metal cations that contain varying numbers of d electrons in orbitals that are NOT spherically symmetric, however, the situation is quite different. The shape and occupation of these d-orbitals then becomes important in an accurate description of the bond energy and properties of the transition metal compound According to CFT, the interaction between a transition metal and ligands arises from the attraction between the positively charged metal cation and negative charge on the non-bonding electrons of the ligand. The theory is developed by considering energy changes of the five degenerate d-orbitals upon being surrounded by an array of point charges consisting of the ligands. As a ligand approaches the metal ion, the electrons from the ligand will be closer to some of the d-orbitals and farther away from others causing a loss of degeneracy. The electrons in the d-orbitals and those in the ligand repel each other due to repulsion between like charges. Thus the d-electrons closer to the ligands will have a higher energy than those further away which results in the d-orbitals splitting in energy. This splitting is affected by the following factors:- 1. The nature of the metal ion. 2. The metals oxidation state. A higher oxidation state leads to a larger splitting. 3. The arrangement of the ligands around the metal ion. 4. The nature of the ligands surrounding the metal ion. The stronger the effect of the ligands then the greater the difference between the high and low energy 3d groups. The most common type of complex is octahedral; here six ligands form an octahedron around the metal ion. In octahedral symmetry the d-orbitals split into two sets with an energy difference, Άoct (the crystal-field splitting parameter) where the dxy, dxz and dyz orbitals will be lower in energy than the dz2 and dx2-y2, which will have higher energy, because the former group are farther from the ligands than the latter and therefore experience less repulsion. The three lower-energy orbitals are collectively referred to as t2g, and the two higher-energy orbitals as eg. (These labels are based on the theory of molecular symmetry). Typical orbital energy diagrams are given below in the section High-spin and low-spin. Tetrahedral complexes are the second most common type; here four ligands form a tetrahedron around the metal ion. In a tetrahedral crystal field splitting the d-orbitals again split into two groups, with an energy difference of Άtet where the lower energy orbitals will be dz2 and dx2-y2, and the higher energy orbitals will be dxy, dxz and dyz opposite to the octahedral case. Furthermore, since the ligand electrons in tetrahedral symmetry are not oriented directly towards the d-orbitals, the energy splitting will be lower than in the octahedral case. Square planar and other complex geometries can also be described by CFT. The size of the gap Ά between the two or more sets of orbitals depends on several factors, including the ligands and geometry of the complex. Some ligands always produce a small value of Ά, while others always give a large splitting. The reasons behind this can be explained by ligand field theory. The spectrochemical series is an empirically-derived list of ligands ordered by the size of the splitting Ά that they produce (small Ά to large Ά; see also this table): Ià ¢Ã‹â€ Ã¢â‚¬â„¢ The oxidation state of the metal also contributes to the size of Ά between the high and low energy levels. As the oxidation state increases for a given metal, the magnitude of Ά increases. A V3+ complex will have a larger Ά than a V2+ complex for a given set of ligands, as the difference in charge density allows the ligands to be closer to a V3+ ion than to a V2+ ion. The smaller distance between the ligand and the metal ion results in a larger Ά, because the ligand and metal electrons are closer together and therefore repel more. High-spin and low-spin [Fe(NO2)6]3à ¢Ã‹â€ Ã¢â‚¬â„¢ crystal field diagram Ligands which cause a large splitting Ά of the d- orbitals are referred to as strong-field ligands, such as CNà ¢Ã‹â€ Ã¢â‚¬â„¢ and CO from the spectrochemical series. In complexes with these ligands, it is unfavourable to put electrons into the high energy orbitals. Therefore, the lower energy orbitals are completely filled before population of the upper sets starts according to the Aufbau principle. Complexes such as this are called low spin. For example, NO2à ¢Ã‹â€ Ã¢â‚¬â„¢ is a strong-field ligand and produces a large Ά. The octahedral ion [Fe(NO2)6]3à ¢Ã‹â€ Ã¢â‚¬â„¢, which has 5 d-electrons, would have the octahedral splitting diagram shown at right with all five electrons in the t2g level. [FeBr6]3à ¢Ã‹â€ Ã¢â‚¬â„¢ crystal field diagram Conversely, ligands (like Ià ¢Ã‹â€ Ã¢â‚¬â„¢ and Brà ¢Ã‹â€ Ã¢â‚¬â„¢) which cause a small splitting Ά of the d-orbitals are referred to as weak-field ligands. In this case, it is easier to put electrons into the higher energy set of orbitals than it is to put two into the same low-energy orbital, because two electrons in the same orbital repel each other. So, one electron is put into each of the five d-orbitals before any pairing occurs in accord with Hunds rule and high spin complexes are formed. For example, Brà ¢Ã‹â€ Ã¢â‚¬â„¢ is a weak-field ligand and produces a small Άoct. So, the ion [FeBr6]3à ¢Ã‹â€ Ã¢â‚¬â„¢, again with five d-electrons, would have an octahedral splitting diagram where all five orbitals are singly occupied. In order for low spin splitting to occur, the energy cost of placing an electron into an already singly occupied orbital must be less than the cost of placing the additional electron into an eg orbital at an energy cost of Ά. As noted above, eg refers to the dz2 and dx2-y2 which are higher in energy than the t2g in octahedral complexes. If the energy required to pair two electrons is greater than the energy cost of placing an electron in an eg, Ά, high spin splitting occurs. The crystal field splitting energy for tetrahedral metal complexes (four ligands) is referred to as Άtet, and is roughly equal to 4/9Άoct (for the same metal and same ligands). Therefore, the energy required to pair two electrons is typically higher than the energy required for placing electrons in the higher energy orbitals. Thus, tetrahedral complexes are usually high-spin. The use of these splitting diagrams can aid in the prediction of the magnetic properties of coordination compounds. A compound that has unpaired electrons in its splitting diagram will be paramagnetic and will be attracted by magnetic fields, while a compound that lacks unpaired electrons in its splitting diagram will be diamagnetic and will be weakly repelled by a magnetic field. Crystal field stabilization energy The crystal field stabilization energy (CFSE) is the stability that results from placing a transition metal ion in the crystal field generated by a set of ligands. It arises due to the fact that when the d-orbitals are split in a ligand field (as described above), some of them become lower in energy than before with respect to a spherical field known as the barycenter in which all five d-orbitals are degenerate. For example, in an octahedral case, the t2g set becomes lower in energy than the orbitals in the barycenter. As a result of this, if there are any electrons occupying these orbitals, the metal ion is more stable in the ligand field relative to the barycenter by an amount known as the CFSE. Conversely, the eg orbitals (in the octahedral case) are higher in energy than in the barycenter, so putting electrons in these reduces the amount of CFSE. Octahedral crystal field stabilization energyIf the splitting of the d-orbitals in an octahedral field is Άoct, the three t2g orbitals are stabilized relative to the barycenter by 2/5 Άoct, and the eg orbitals are destabilized by 3/5 Άoct. As examples, consider the two d5 configurations shown further up the page. The low-spin (top) example has five electrons in the t2g orbitals, so the total CFSE is 5 x 2/5 Άoct = 2Άoct. In the high-spin (lower) example, the CFSE is (3 x 2/5 Άoct) (2 x 3/5 Άoct) = 0 in this case, the stabilization generated by the electrons in the lower orbitals is canceled out by the destabilizing effect of the electrons in the upper orbitals. Crystal Field stabilization is applicable to transition-metal complexes of all geometries. Indeed, the reason that many d8 complexes are square-planar is the very large amount of crystal field stabilization that this geometry produces with this number of electrons. Explaining the colours of transition metal complexes The bright colours exhibited by many coordination compounds can be explained by Crystal Field Theory. If the d-orbitals of such a complex have been split into two sets as described above, when the molecule absorbs a photon of visible light one or more electrons may momentarily jump from the lower energy d-orbitals to the higher energy ones to transiently create an excited state atom. The difference in energy between the atom in the ground state and in the excited state is equal to the energy of the absorbed photon, and related inversely to the wavelength of the light. Because only certain wavelengths (ÃŽÂ ») of light are absorbed those matching exactly the energy difference the compounds appears the appropriate complementary colour. As explained above, because different ligands generate crystal fields of different strengths, different colours can be seen. For a given metal ion, weaker field ligands create a complex with a smaller Ά, which will absorb light of longer ÃŽÂ » and thus lower frequency ÃŽÂ ½. Conversely, stronger field ligands create a larger Ά, absorb light of shorter ÃŽÂ », and thus higher ÃŽÂ ½. It is, though, rarely the case that the energy of the photon absorbed corresponds exactly to the size of the gap Ά; there are other things (such as electron-electron repulsion and Jahn-Teller effects) that also affect the energy difference between the ground and excited states Crystal field splitting diagrams Crystal field splitting diagrams Octahedral Pentagonal bipyramidal Square antiprismatic Square planar Square pyramidal Tetrahedral Trigonal bipyramidal LIMITATIONS(CFT):- CFT ignores the attractive forces the d-electrons of the metal ion and neuclear charge on the ligand atom. Therefore all the properties are dependent upon the ligand orbitals and their interaction with metal orbitals are not explained. In CFT model partial covalency of metal -ligand bond is not taken into consideration According to CFT metal-ligand bonding is purely electrostatic. In CFT only d-electrons of the metal ion are considered .the other metal orbitals such as s,Px,Py,Pz are taken into considerations. In CFT à Ã¢â€š ¬-orbitals of ligand are not considered The theory cant explain the relative strength of the ligands i.e. it cannot explain that why water is stronger than OH according to spectrochemical series . It does not explain the charge transfer spectra on the intensities of the absorption bands. VALENCE BOND THEORY(VBT) In chemistry, valence bond theory is one of two basic theories, along with molecular orbital theory, that developed to use the methods of quantum mechanics to explain chemical bonding. It focuses on how the atomic orbitals of the dissociated atoms combine on molecular formation to give individual chemical bonds. In contrast, molecular orbital theory has orbitals that cover the whole molecule According to this theory a covalent bond is formed between the two atoms by the overlap of half filled valence atomic orbitals of each atom containing one unpaired electron. A valence bond structure is similar to a Lewis structure, but where a single Lewis structure cannot be written, several valence bond structures are used. Each of these VB structures represents a specific Lewis structure. This combination of valence bond structures is the main point of resonance theory. Valence bond theory considers that the overlapping atomic orbitals of the participating atoms form a chemical bond. Because of the overlapping, it is most probable that electrons should be in the bond region. Valence bond theory views bonds as weakly coupled orbitals (small overlap). Valence bond theory is typically easier to employ in ground state molecules. v The overlapping atomic orbitals can differ. The two types of overlapping orbitals are sigma and pi. Sigma bonds occur when the orbitals of two shared electrons overlap head-to-head. Pi bonds occur when two orbitals overlap when they are parallel. For example, a bond between two s-orbital electrons is a sigma bond, because two spheres are always coaxial. In terms of bond order, single bonds have one sigma bond, double bonds consist of one sigma bond and one pi bond, and triple bonds contain one sigma bond and two pi bonds. However, the atomic orbitals for bonding may be hybrids. Often, the bonding atomic orbitals have a character of several possible types of orbitals. The methods to get an atomic orbital with the proper character for the bonding is called hybridization VB THEORY IN TODAYS DATE:- Valence bond theory now complements Molecular Orbital Theory (MO theory), which does not adhere to the VB idea that electron pairs are localized between two specific atoms in a molecule but that they are distributed in sets of molecular orbitals which can extend over the entire molecule. MO theory can predict magnetic properties in a straightforward manner, while valence bond theory gives similar results but is more complicated. Valence bond theory views aromatic properties of molecules as due to resonance between Kekule, Dewar and possibly ionic structures, while molecular orbital theory views it as delocalization of the à Ã¢â€š ¬-electrons. The underlying mathematics are also more complicated limiting VB treatment to relatively small molecules. On the other hand, VB theory provides a much more accurate picture of the reorganization of electronic charge that takes place when bonds are broken and formed during the course of a chemical reaction. In particular, valence bond theory co rrectly predicts the dissociation of homonuclear diatomic molecules into separate atoms, while simple molecular orbital theory predicts dissociation into a mixture of atoms and ions. More recently, several groups have developed what is often called modern valence bond theory. This replaces the overlapping atomic orbitals by overlapping valence bond orbitals that are expanded over a large number of basis functions, either centered each on one atom to give a classical valence bond picture, or centered on all atoms in the molecule. The resulting energies are more competitive with energies from calculations where electron correlation is introduced based on a Hartree-Fock reference wavefunction. Applications of VB theory An important aspect of the VB theory is the condition of maximum overlap which leads to the formation of the strongest possible bonds. This theory is used to explain the covalent bond formation in many molecules. For Example in the case of F2 molecule the F F bond is formed by the overlap of pz orbitals of the two F atoms each containing an unpaired electron. Since the nature of the overlapping orbitals are different in H2 and F2 molecules, the bond strength and bond lengths differ between H 2 and F2 molecules. In a HF molecule the covalent bond is formed by the overlap of 1s orbital of H and 2pz orbital of F each containing an unpaired electron. Mutual sharing of electrons between H and F results in a covalent bond between HF COMPARISON OF CFT AND VBT Some of the properties of complexes which could not be explained on the basis of valence bond theory are satisfactorily explained by crystal field theory.CFT is thus definitely an improvement over vbt these are the following merits of cft over vbt will prove that statement: CFT predicts a gradual change in magnetic properties of complexes rather than the abrupt change predicted by VBT . In some complexes ,when Ά is very close to P, simple temperature changes may affect the magnetic properties of complexes .Thus the CFT provides theoretical basis for understanding and predicting the variations of magnetic moments with temperature as well as detailed magnetic properties of complexes ,this is just in contrast of VBT which can not predict or explain magnetic behaviour beyond the level of specifying the number of unpaired electrons. Though the assumptions inherent in VBT and CFT are vastly different , the main difference lies in their description of the orbitals not occupied in the low spin states .VBT forbids their use as they are involved in forming hybrid orbitals, while they are involved in forming hybrid orbitals, while CFT strongly discourages their use as they are repelled by the ligands. According to VBT, the bond between the metal and the ligand is covalent,,while according to CFT it is purely ionic. The bond is now considered to have both ionic and covalent charachter .Unlike valence bond theory CFT provides a framework for the ready interpretation of such phenomenon as tretagonal distortions. CFT provides satisfactory explanation for the colour of transition metal complexes , i.e. spectral properties ofcomplexes, i.e. spectral properties of complexes. CFT can semiquantitatevily explain certain thermodynamic and kinetic properties. CFT makes possible a clear understanding of stereochemical properties of complexes. REFRENCES J. H. Van Vleck, Theory of the Variations in Paramagnetic Anisotropy Among Different Salts of the Iron Group, Phys. Rev. 41, 208 215 (1932)[1] Zumdahl, Steven S. Chemical Principles Fifth Edition. Boston: Houghton Mifflin Company, 2005. 550-551,957-964. 3) Silberberg, Martin S. Chemistry: The Molecular Nature of Matter and Change, Fourth Edition. New York: McGraw Hill Company, 2006. 1028 -1034. 4 )D. F. Shriver and P. W. Atkins Inorganic Chemistry 3rd edition, Oxford University Press, 2001. Pages: 227-236. 5) http://wwwchem.uwimona.edu.jm:1104/courses/CFT.html Murrel, J. N.; S. F. Tedder (1985). The Chemical Bond. John Wiley Sons. ISBN 0-471-90759-6 6) I. Hargittai, When Resonance Made Waves, The Chemical Intelligencer 1, 34 (1995)) 7) Shaik, Sason S.; Phillipe C. Hiberty (2008). A Chemists Guide to Valence Bond Theory. New Jersey: Wiley-Interscience. 8)text book of cordination chemistry by dr.R.K. sharma pg 61,62 9)engineering chemistry by A.K.pahari,B.S.chauhan.

Overpopulation in the 1900s :: essays research papers

Some people believe that immigration in the 1900’s was a good thing, however, they would be wrong. The United States government should have restricted the immigrants around that time. Some reasons are the population, the taking of new jobs and lowering wages, and diseases spreading quickly. These all factored importantly into why they should not have been allowed in. The population in the 1900’s was beginning to overflow. In 1875 the United States government had to put a immigration restriction so that no more immigrants could come into the United States. Which ended up leading into the depression. Then later in 1882 the United States government had to put a restriction on all Chinese immigrants because there were too many of them coming over. So as a result you can tell that too many immigrants were coming over into the United States. Another big factor in why the immigrants should have been restricted in the 1900’s is because they would take most of the needed jobs in all of the warehouses. The main reason that they would get all of the jobs in the warehouses is because they would come in large amounts and they were willing to work for very little pay. The places that they lived were usually shacks or a 2 or three room apartment so they wouldn’t have many costs to take care of. This also would lead allot of Americans getting angry because it would become harder and harder to find work. Due to the very poor living conditions that all of the immigrants would live in diseases would spread very quickly. Another reason that diseases would spread is because so many different people from different country’s would take very long journeys on a boat where it is tremendously overcrowded. Whenever immigrants would come over they would have to see a doctor.

Korematsu vs. United States :: essays research papers

Fred Korematsu was born in the U.S. in 1919. His parents were born in Japan. Since he was born in the U.S. he was a citizen. He grew up like a normal kid in California. As he grew up, his life was normal, until the attack on Pearl Harbor on December 7, 1942. After the bombing of Pearl Harbor, Japanese Americans were regarded as a threat to the U.S. President Roosevelt issued Executive Order 9066, also know as the Exclusion Order. This Order stated that any descendents or immigrants from enemy nations who might be a threat to U.S. security will report to assembly centers for Internment. There were no trials or hearings. They were forced to evacuate and many lost their homes and their businesses. Fred Korematsu refused to go. He was a U.S. citizen. Fred Korematsu was grabbed by police, handcuffed, and taken to jail. His crime -- defying President Franklin Roosevelt's order that American citizens of Japanese descent report to internment camps This action violated Korematsu’s basic constitutional rights. The fourth amendment states, "The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated; and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched and the persons or things to be seized." The government’s actions clearly stepped over the boundaries of the constitution. As a U.S. citizen he should not have been pushed around like that. Korematsu decided to take his case to the court. Korematsu’s case first went to regional court. After being turned down there, he then went to the court of appeals. Being turned down there also, his lawyer appealed to the Supreme Court while he was held in the relocation camp. The Supreme Court decided to take his case, but then made the wrong worst decision ever. They decided to uphold the other courts’ decisions by a vote of six to three. Korematsu lost his case. After the war ended, the internment haunted the nation's conscience as well. In 1948 Congress took the first step in making amends, enacting the Japanese American Evacuation Claims Act to provide some monetary compensation to those who had lost homes and businesses because of the order. In 1980, Congress again opened the internment issue, and this time a stream of witnesses testified, many of them for the first time, of the hardships and psychological trauma they had suffered.

Compare Contrast Perfect Compettiton Essay

A market is any place where the sellers of a particular good or service can meet with the buyers of that goods and service where there is a potential for a transaction to take place. The buyers must have something they can offer in exchange for there to be a potential transaction. Market structure: Market structure refers to the factors, such as size of the market, technological, cost and demand conditions and the barriers to entry and exit, that would affect the effectiveness of managerial decisions. We can also consider the market structure as describing the state of the market with respect to competition. Market structures Monopoly Perfect competition Imperfect competition Monopolistic competition c Oligopoly Overview: Perfect competition is a theoretical market structure. It is primarily used as a benchmark against which other market structures are  compared. The industry  that best reflects perfect competition in real life is the agricultural industry. For example , As there are millions of farmers who would produce rice & there are millions of consumers who would consume rice. In this case not a single buyer or seller could influence the price of rice. Perfect competition is a competitive market. Economist uses the term† competitive market â€Å"to describe a market in which there are so many buyers & so many sellers that each has a negligible impact on the market price. Characteristics of perfectly competitive market- 1. Large number of buyers & sellers: In perfect competition, there must be large number of buyers and sellers. Each buyer buys a small quantity of the total amount. Each seller is so large that no single buyer or seller can influence the price and affect the market. According to Scitovsky buyers and sellers are price takers in the purely competitive market. Each seller (or firm) sells its products at the price determined by the market. Similarly, each buyer buys the commodity at the price determined by the market. 2. Homogeneous product: Under perfect competition, the product offered for sale by all sellers must be identical in every respect. The goods offered for sale are perfect substitutes of one another. Buyers have no special preference for the product of a particular seller. No seller can raise the price above the prevailing price or lower the price below the prevailing price. 3. Free entry and exit: Under perfect competition, there will be no restriction on the entry and exit of both buyers and sellers. If the existing sellers start making abnormal profits, new sellers should be able to enter the market freely. This will bring down the abnormal profits to the normal level. Similarly, when losses will occur existing sellers may leave the market. However, such free entry or free exit is possible only in the long run, but not in the short-run. 4. Perfect knowledge: Perfect competition implies perfect knowledge on the part of buyers and sellers regarding the market conditions. As results, no buyer will be prepared to pay a price higher than the prevailing price. Sellers will not charge a price higher or lower than the prevailing price. In this market, advertisement has no scope. 5. Perfect mobility of factors of production: The second perfection mobility of factors of production from one use to another use. This feature ensures that all sellers or firms get equal advantages so far as services of factors of production are concerned. This is essential to enable the firms and industry to achieve equilibrium 6. Absence of transport cost: Under perfect competition transport, cost does not exist. Since commodities have, the same price it logically follows that there will be no transport cost. In the event of the presence of cost of transport, there will be no single price in the market. Transport cost occurs when there is no perfect knowledge of the market conditions on the part of buyers and sellers. . No attachment: There is no attachment between the buyers and sellers under perfect competition. Since products of all sellers are identical and their prices are the same a buyer is free to buy the commodity from any seller he likes. He has no special inclination for the product of any seller as in case of monopolistic competition or oligopoly. Theoretically, perfect competition is irrelevant. In reality, it does not exist. So it is a myth Profit maximization for a competitive firm: The goal of any competitive firm is to make profit. Three general rules for profit maximization under perfect competition are stated as follows: -If the marginal revenue is greater then marginal cost the firm should increase the output -If marginal cost is greater then greater then marginal cost the firm should decrease output -At profit maximizing level of output, marginal revenue & marginal cost are exactly same Example: Profit maximization for a perfectly competitive market.