Overview of Synthesis and Preparation Experiments

Overview of Synthesis and Preparation Experiments Introduction: As we know, Manganese is found in the first row of transition metal with the electron configuration [Ar] 3d5 4s2. Besides that, Manganese has different type of oxidation states when it appears as a compound and the oxidation state is from Mn(-III) until Mn(VII). So, we know that the compounds of manganese range in the oxidation number have a different of 10 electrons. In the experiment 1, we prepare tris(acetylacetonato)manganese(III), Mn(acac)3 by using manganese(II) chloride tetrahydrate and potassium permanganate act as oxidation agent to oxidise manganese(II) chloride to acetylacetonemanganese(III). Manganese(III) acetylacetonate is an one- electron oxidant. Manganese(III) acetylacetonate is high spin. It has also a distorted octahedral structure. This distortion is due to the Jahn-Teller effect. (Absolute Astronomy, 2009). The structure of Manganese(III) acetylacetonate is shown as below:- (Source: Tcieurope.com) The equation is as follow:- MnCl2 + 4H2O Mn(H2O)4Cl2 Mn(H2O)4] Cl + 2HC5H7O2 + NaC2H3O2 Mn(C5H7O2)2 + NaCl + HC2H2O2 4Mn(C5H7O2)2 + KMnO4 + 7HC5H7O2 + HC2H3O2 5Mn(C5H7O2)3 + KC2H3O2 + 4H2O Furthermore, bis(acetylacetonato)oxovanadium(IV) is also known as Vanadyl acetylacetonate, VO(acac)2. As we know, it is a blue green complex. bis(acetylacetonato)oxovanadium(IV) has a vanadyl group, VO2+. The vanadyl group is bonded to 2 acetylacetonate anions and the structure of the compound is as follow:- This complex can be made from vanadium(IV) or vanadium(V). In our experiment, bis(acetylacetonato)oxovanadium(IV) was prepared from vanadium(V) oxide and the equation is as follow:- V2O5 + 2H2SO4 + EtOH 2VOSO4 + 3H2O + CH3CHO VOSO4 + 2HC5H7O2 + Na2CO3 VO(C5H7O2)2 + Na2So4 + H2O + CO2 (Absolute Astronomy, 2009) Besides that, both of the acetylacetonato (acac) groups of bis(acetylacetonato)oxovanadium(IV) are able to be exchanged with organic ligands having coordinating atoms of different potentialities. (Maurya, 2003) Both Manganese(III) acetylacetonate and bis(acetylacetonato)oxovanadium(IV) are bond with acetylacetonate which known as ligand. The precursor for acetylacetonate is acetylacetone with formula CÂ ­5H8O2. However, acetylacetonate is an anion. It can bind to corresponding cation but it very hard to exist as a free ion in solution. In addition, Cobalt is a hard, gray metal. It has a proton number 27. Besided that, there are two types of cobalt ions namely Co2+ and Co3+. First, Co3+ ion is more weaker than the Co2+ ion. However, the complex ion formed with higher oxidation state is more stable. ( Â °zmir Institute of Technology, n.d.). So that, Cobalt(III) complexes are kinetically inert. Co3+ can undergo a process known as ligand exchange reactions slowly which compared to Co2+ complexes. The cobalt(III) complexes are usually in octahedral shape. In the experiment, chloropentaamminecobalt(III) chloride is being synthesized. The structure is as follow:- (Source: Chemicalbook.com) The complex is prepared by the oxidation of ammoniacal solution of cobalt(II) salts by using hydrogen peroxide. The formula is as follow:- Co2+ + NH4+ + 1/2H202 → [Co(NH3)5H20]3+ [Co(NH3)5H20]3+ + 3Cl- → [Co(NH3)5Cl]Cl2 + H20 ( Â °zmir Institute of Technology, n.d.) Materials and Methods: Experiment one, 5g of MnCl2.4H20 1.3g of NaC2H3O2.3H2O NaC2H3O2.3H2O Dissolved in 200cm3 of distilled water. 21cm3 of 2HC5H7O2 slowly added 1g of KMnO4 Present of two-phase layer Solution A added in with stirring Dissolved in 50cm3 of distilled water. 13g of NaC2H3O2.3H2O Solution B added in Solution A Solution B Dissolved in 50cm3 of distilled water. Heated with 60oC for 30 minutes Complex washed with acetone Solid complex filtered by suction Resultant solution was cooled with ice-cold water Experiment 2 Experiment 3 5 cm3 distilled water 4 cm3 concentrated H2SO4 10 cm3 ethanol Were added in. Recrystallise Results : For experiment 1, from the equation below, I can get the theoretical mass of the Mn(acac)3 solid complex by : Mn(H2O)4] Cl + 2HC5H7O2 + NaC2H3O2 Mn(C5H7O2)2 + NaCl + HC2H2O2 4Mn(C5H7O2)2 + KMnO4 + 7HC5H7O2 + HC2H3O2 5Mn(C5H7O2)3 + KC2H3O2 + 4H2O From the equation, we know that 1 mol of Mn(H2O)4] Cl = 1 mol of Mn(C5H7O2)2. So, 5 g of Mn(H2O)4] Cl = 0.0308 mol is also = 0.0308 mol of Mn(C5H7O2)2. From the second equation, 4 mol of Mn(C5H7O2)2 = 5 mol of Mn(acac)3 0.0308 mol of Mn(C5H7O2)2 = 0.0385 mol. So, theoretical weight of Mn(acac)3 = 0.0385 mol X 252.938 g/mol theoretical weight of Mn(acac)3 = 9.7381 g The following shows the method to get our experimental weight: Weight of Sample tube 14. 8180 g Weight of Sample tube + solid complex , Mn(acac)3 18.7785 g So, the experimental weight of Mn(acac)3complexes were 3.9605 g Percentage yield of Mn(acac)3complexes we get was = 3.9605 g / 9.7381 g X 100 % = 40.67 % Next, Magnetic moment of Mn(acac)3complexes were calculated as follow : m = 0.9278g- 0.8193g = 0.1085g Ro= -33 L = 2.4cm R= 1165 (paramagnetic) CBal = 1 X(g) = [CBal X L X (R-Ro) ] / 109 X m X(g) of Mn(acac)3complexes = 2.65 X 10-5 So, Mn(acac)3complexes are paramagnetic Interpretation of IR spectrum for complexes will be written in discussion. For experiment 2, from the equation below, I can get the theoretical mass of the [Co(NH3)5Cl]Cl2 solid complex by : Co2+ + NH4+ + 1/2H202 → [Co(NH3)5H20]3+ [Co(NH3)5H20]3+ + 3Cl- → [Co(NH3)5Cl]Cl2 + H20 From the above equation, 1 mol of Co2+ = 1 mol of [Co(NH3)5H2O]3+ 12g of Co2+ = 0.0504 mol So 0.0504 mol of [Co(NH3)5H20]3+= 0.0504 mol of [Co(NH3)5Cl]Cl2 Theoretical weight of [Co(NH3)5Cl]Cl2 solid complexes = 0.0504 mol X 250.433 g/mol = 12.6218 g The following shows the method to get our experimental weight: Weight of Sample tube 14. 9285 g Weight of Sample tube + solid complex , Mn(acac)3 22.3723 g So, the experimental weight of [Co(NH3)5Cl]Cl2 solid complexes = 7.4438 g Percentage yield of [Co(NH3)5Cl]Cl2complexes = 7.4438 g / 12.6218 g X 100 % = 58.98 % Next, Magnetic moment of [Co(NH3)5Cl]Cl2complexes were calculated as follow : m = 0.9264g- 0.8207g = 0.1057g Ro= -36 L = 2.1cm R= -41 (dimagnetic) CBal = 1 X(g) = [CBal X L X (R-Ro) ] / 109 X m X(g) of [Co(NH3)5Cl]Cl2complexes = -9.9338 X 10-8 So, [Co(NH3)5Cl]Cl2complexes are dimagnetic For experiment 3, from the equation below, I can get the theoretical mass of the [Vo(acac)2(H2O)] solid complex by : V2O5 + 2H2SO4 + EtOH 2VOSO4 + 3H2O + CH3CHO VOSO4 + 2HC5H7O2 + Na2CO3 VO(C5H7O2)2 + Na2So4 + H2O + CO2 From the above equation, 1 mol of V2O5 = 2 mol of VOSO4 2g 0f V2O5 = 0.011 mol = 0.022 mol of VOSO4 2 mol of VOSO4 = 2 mol of VO(C5H7O2)2 Theoretical weight of VO(C5H7O2)2= 0.022 mol X 264.94 g/mol = 5.8287 g The following shows the method to get our experimental weight: Weight of Sample tube 14.8445 g Weight of Sample tube + solid complex , Mn(acac)3 18.5818 g So, the experimental weight of VO(C5H7O2)2= 3.7373 g Percentage yield of VO(C5H7O2)2= 3.7373 g / 5.8287 g X 100% = 64.12% Next, Magnetic moment of impure VO(C5H7O2)2 complexes were calculated as follow : m = 0.8880g 0.8244 g = 0.0636g Ro= -34 L = 2.5cm R= 72 (paramagnetic) CBal = 1 X(g) = [CBal X L X (R-Ro) ] / 109 X m X(g) of impure VO(C5H7O2)2complexes = 4.17 X 10-6 So, VO(C5H7O2)2complexes are paramagnetic Magnetic moment of pure VO(C5H7O2)2 complexes were calculated as follow : m = 0.8947g -0.8211 = 0.0736g Ro= -33 L = 2.3cm R= 144 (paramagnetic) CBal = 1 X(g) of pure VO(C5H7O2)2complexes = 5.53 X 10-6 Discussion : Interpretation of IR spectrum for tris(acetylacetonato)manganese(III): Wavenumber (cm-1) Description of bands 2921.1 2959.7 -relative intensity : weak CH stretching of CH3 1593.9 1508.0 -relative intensity : strong -(C=C) stretching -(C=CH) deformation 1387.2 -relative intensity : strong -(CH3)- symmetric C-H deformation 1253.5 -relative intensity : strong -(C=C) stretching -(C-CH3) stretching 1016.8 -relative intensity : strong -(CH3) out-of plane bending 923.2 -relative intensity : strong -(C-CH3) stretching 777.0 -relative intensity : strong -(C-H)deformation 678.1 -relative intensity : medium/ strong -(C-CH3)stretching,(O=C-CH3) deformation -(Mn-O) stretching indicates metal-ligand bond 460.1 relative intensity : weak (C=C) stretching,(C-CH3) stretching -(Mn-O) stretching that also indicates metal-ligand bond Interpretation of IR spectrum for chloropentaamminecobalt(III) chloride: Wavenumber (cm-1) Description of bands 3258.0 -relative intensity : strong NH3 stretch 1576.2 -relative intensity : medium -degenerate asymmetric NH3 stretching 1307.8 -relative intensity : strong -symmetric NH3 angle deformation 844.9 -relative intensity : strong -NH3 rocking 487.6 -(Co-Cl) stretching indicates metal-ligand bond Interpretation of IR spectrum for impure bis(acetylacetonato)oxovanadium(IV): Wavenumber (cm-1) Description of bands 1556.8 1521.0 -relative intensity : medium (C=O) stretching -( C=C),(C=CH) stretching 1418.7 -relative intensity : medium -(CH3) deformation 1374.0 1357.6 -relative intensity : strong -(C=O) stretching -(CH3) deformation mode 1286.6 -relative intensity : strong -(C=C=C) stretching 998.2 -relative intensity : strong and sharp -stretching of V=O bond -it also indicates the metal-ligand bond. 1018.6 -relative intensity : strong -(CH3) rocking 936.1 -relative intensity : strong -(C-CH3) stretching -(C=O) stretching 798.6 -relative intensity : medium -(C-H) out-of-plane bending 685.9 657.2 -relative intensity : medium/ weak -(ring) deformation out-of-plane bending for: 609.2 -(ring) deformation Interpretation of IR spectrum for pure bis(acetylacetonato)oxovanadium(IV): FTIR is known as Fourier Transform Infrared Spectroscopy. This FTIR can be used to identify different types of chemical bond which is either organic compound or inorganic compound. So no two different compounds will have same spectrum. However, FTIR may cause destructive to our sample compare to magnetic susceptibility which is non-destructive. Besides that, magnetic susceptibility can be group by paramagnetic, diamagnetic and ferromagnetic. Paramagnetic substance is those attracted by strong magnetic field but those repelled by magnetic field are diamagnetic substances. Besides that, we can also confirm the shape by using magnetic susceptibility. The Cobalt ion to form Chloropentaamminecobalt(III) chloride has 6 electron in d orbital. Magnetic Susceptibility for chloropentaamminecobalt(III) chloride is -9.9338 X 10-8 and it is diamagnetic. Only the low-spin octahedral shape shows diamagnetic properties, so the shape of chloropentaamminecobalt(III) chloride is octahedral. Magnetic Susceptibility for tris(acetylacetonato)manganese(III) is 2.65 X 10-5 and it is paramagnetic. So the shape of tris(acetylacetonato)manganese(III) is octahedral. However we cannot determine whether is low-spin or high-spin in this situation because we are not calculating the pairing energy for the complex. In addition, there is only one electron in d orbital for vanadium ion of bis(acetylacetonato)oxovanadium(IV). Magnetic susceptibility for it is 4.17 X 10-6 and it is paramagnetic. Moreover, oxovanadium complexes act as insulin mimetics, nucleolytic and anticancer. To recognize insulin- mimetic complexes, a simple and fast in-vitro assay is developed. Besides that, an accurate assessment of the cells taken up of glucose, in-vitro assay with Ehrlich can be used. The oxovanadium complexes can cleave DNA without the present of hydrogen peroxide. Then, its nucleolytic efficiency is also greater but it is affected by the choice of buffer and pH. The oxovanadium complexes is also an anticancer agent against human ovarian cancer. Actually, I have acquired a lot of new knowledge among these three experiments. First, experiment one and two are easier to carry out compared to experiment three. This is because experiment one and two involved oxidation which Mn2+ was oxidized to Mn3+ ; Co2+ was oxidized to Co3+. Whereas experiment 3 involved reduction which reduced VO5+ to VO4+. At the beginning of each experiments, we heated up the sample in open air. It is easier to oxidize the compound than reduce the compound in the presence of oxygen. So, we need more time to heated the V2O5. During the first time of experiment three, I failed to get a blue color solid powder. This is because I heated the sample in the open air and I failed to control the heater. So, after the filtration process, I got a white solid powder. Therefore, I learnt from the mistake and during the second time I used reflux method. This time I can control the heating process well. The ethanol was not evaporated much. After filtration, I got quite a lot of blue solid powder. So, I knew that, for reduction process, we cannot heat the sample too quickly and heat too long. If we heated too long, most of the product will evaporate. Next, from the FTIR spectrum, I can observe that the spectrum from the first and third experiment are quite similar. This is because, the peak from the spectrum are mostly from the acetylacetonato (acac). However, spectrum from experiment two is quite different from other experiment because mostly the peaks come from Cl compared to other experiments. The percentage yield of the complexes from all the three experiment that I have calculate out was not so high. This is maybe due to the washing of the product with acetone, some of the product was dissolved and washed away. However, there are other factors which cause problem to our results. First, most of the heating plate we used cannot function well. I changed many heating plate during the experiment. Next, we have kept our half way done sample for more than 7 days. The results may not be so accurate anymore. Another factor maybe due to the volume and amount of the sample and other material we measure are not accurate. Our product may contain some impurities. However, some of the precaution was taken during the experiment. In these experiments, some of the chemical was corrosive and poisonous such as concentrated HCl and H2SO4. So, we poured the chemical carefully in the fume board. Next, before using any instrument, we read through the manual to understand the steps to function the magnetic susceptibility balance. We also taken down some important steps to function the FTIR spectrophotometer. I have asked some help from lab assistant on where to get the material for experiment. Conclusion The percentage yield for tris(acetylacetonato)manganese(III) is 40.67%, chloropentaamminecobalt(III) chloride is 58.98% and (acetylacetonato)oxovanadium(IV) is 64.12%. For tris(acetylacetonato)manganese(III), the peak for two Mn-O bond are at the region approximately 678.1 cm-1 and 458.3 cm-1. For chloropentaamminecobalt(III) chloride, the peak for Co-N bond is at 669.2 cm-1 while Co-Cl bond is at 486.2 cm-1. For bis(acetylacetonato)oxovanadium(IV), the peak for V=O bond is at 997.4 cm-1 region. Magnetic Susceptibility for tris(acetylacetonato)manganese(III) is 2.65 x 10-5 and it is paramagnetic. Besides, Magnetic Susceptibility for chloropentaamminecobalt(III) chloride is -9.93x 10-8 and is diamagnetic. For bis(acetylacetonato)oxovanadium(IV), magnetic susceptibility for impure complex and pure complex are 4.17X 10-6 and 5.53X 10-6 respectively. They are paramagnetic.

Child Cognitive Development

Child Cognitive Development INTRODUCTION Jean Piaget looked at the concept of cognitive development from a biological angle. To him, adaptation and organization are the key principles in the human’s intellect and growth. He argued that human beings always strive to have a state of balance in their mind. Adaptation comes about when the child experiences cognitive disability, that is, the situation what the child sees the world as expected and what she or he is undergoing. The child therefore buys new information and integrates with the already existing one. Piaget calls this accommodation. This comes about when the acquired new information doesn’t fit well into the already existing structures. For instance, a child coming across a squirrel for the first time and discovers that it differs with the rabbit. He/she therefore come up with another representation of a squirrel. The mind has to have some form of information organization hence scheme is the basic structure. In a child’s development, play is an important aspect to consider. This is because ideas and concepts are learned and also, there is an enhancement of language, motor skills and social life through play. To Piaget, there are four major stages that are involved in cognitive development. Firstly, we have sensorimotor period that occurs between Zero to two years. At this stage, the child as he interacts with the environment creates sets of concepts and the operations of the reality. There is an engagement in motor movements starting with early reflexes and proceeding towards intentional actions. In most cases, these actions are trial and error. It’s through their actions that children learn that their behaviors have effects on the environment. Their actions become sophisticated as they develop hence becoming deliberate. For example, a child grasps a rattle paper in place in his hand, this can be compared to the older child who picks up and shakes a rattle to make noise. The pretend stage in most cases starts at the age of eight months. At this level, the child can act out actions and roles of an adult and some familiar events. At three or four, the skills become symbolic; the child can substitute objects for instance, a child’ feeds ‘a doll using a toy bottle. On the other hand, the older child feeds the baby using a wooden block in pretence that the block acts as the baby bottle. This level provides a good foundation for the child play as the child gets his/her own experience. Preoperational period is the second stage and it occurs between the ages of two to seven years. The child can not still abstractly conceptualize. He needs touchable situations. At the age of around three or four, constructive play interests the child. Here he or she can manipulate materials and objects in their different worlds and come up with an end product such as sand houses, clay cows sand mountains and so on. As he develops skills in manipulation of materials and objects, they sharpen his skills in thought expressions, ideas and concepts. At the mastery play level, there is the demonstration of the skilled Moto movements and there is full engagement in forms of imagination or pretend play at the same time. Children easily move about with their environment and are more confident in their actions. There is running and jumping over obstacles on a playground as they pretend to be the cartoon superhero’s. This occurs at around four to five years as encounter new play challenges and experiences. At the age of five, they develop interest in games that have two or more sides and have rules; this is because the thinking is becoming more logical. At this level, they begin to realize activities like Red Rover, Peter Says, and rule games won’t not work unless it is followed by everyone. This level involves competition and definition of criteria that establish winners. The third stage is the concrete operation that which occurs between the ages of seven years to eleven years. As the physical experience goes up, he starts conceptualizing, logically creating structures that explain the physical experience around him. At this point, he can now solve abstract problems for instance; equations on arithmetic can be solved not only with objects but with numbers. The last stage is the formal operations that occur between the ages of eleven to fifteen years. The cognitive structure at this point has developed and is like that of an adult. He is able to conceptualize and reason. At all developmental stages, there is an interaction of the child with his environment using the so far constructed mental maps. The experience fits easily if it’s the repeated one into the cognitive structure so that the state of equilibrium is maintained. He looses equilibrium if the experience is new or different. He therefore adjusts his cognitive structure in a way to accommodate the new conditions. However, different scholars also have done researches on role of play in child development. This was perhaps the development of Piaget, s theory of learning. Mc Cune Zanes, 2001argued that infants and toddlers do involve themselves in activities that in most cases stimulate their senses and lead to the development of the motor skills. These children actively explore their capabilities by using simple non directional and repetetitios plays. To them, as infants play on their own and alone, the toddlers play with or besides other children. Sometimes, they are within speaking distance but make minimal or not communicate at all. Given a situation of two or three children playing with similar toys might pursue totally different activities. Each concentrates on his or her own needs, a reflection of egocentric behaviors with no concept of rules. Such play therefore contributes the Childs growing ability to be able to pay attention and to the total development of physical, social and intellec tual growth.(Piaget,1962) At primary grades, they play formal and informal games together for example hide and seek, computer games, jump rope amongst others. In this kind of plays, there is development of physical prowess, refinement of social skills, building of concepts such as completion and there is also the enhancement of coordination. Moreover, these games also enable children to do demonstrations of their skills, abilities and talents to themselves and to others. They do these through coded messages, riddles and game numbers.(Eifermann,1971) Children’s play becomes more organized and more structured at childhood and early adolescent. At this stage, their passion for orderly thinking is seen in the games with rules and the organization of the sporting events. Winning to them is paramount as they begin to conceptualize and internalize that winning is as a result of following rules. At this age, sports are important. As social awareness grows in the child, the attention shifts from the family to the peer group. At this point, their energies are channeled to youth groups, team sports and clubs. As they do role taking and playing in those organizations, they get to understand how they can best fit in the societal systems. (Hughes, 1999) Fromberg (2002) argues that new information among children can be owned by playing with the same information. When there is interactive balance of facts gaining and acquisition of skills by the culture and information making owned by someone, then there in learning. This cycle enables children their environment better. (Fromberg, 2002, Mc Williams, 1998).Personal meaning comes about when there is active play. When there is perception of events by children as personally relevant, their neural connectivity of situations, skills and ideas is taken to their long-term memory.(Jensen,1999) adds that intrinsic motivation is by play and play contexts that is brought about by positive motivations . For instance, curiosity improves motivation which in turn facilitates learning and performance simply by focusing on the attention of the learner. Threats, panic, stress as negative emotions detract from motivation. According to Pieget, learning is effective when there are positive motivators. There children are free to participate and play when they are relaxed and free from any kind of stress. A toddler who is threatened will shy off and therefore will not participate in any kind of information flow. Pieget’s psychological approach to the to the study therefore lays a lot of emphasis to the full understanding of the children as we attempt to bring them up. This calls for understanding the stage at which the child is at, the environment and the emotional CONCLUSION Jean Pieget holds that, development precedes learning that is, it is activated by cognitive problems. All in all, Jean Piaget’s contribution was a milestone in the fields of both the natural and social sciences. People through his theories have been able to understand intrinsically both development of their children in all stages and shaping them to be good and responsible adults. By understanding the development of the child at every stage, it becomes easy for the parent to provide the necessary support to the child and be able to monitor his or her development. Moreover, it’s through Jean’s contribution that educators have adopted different modes of communication. Having looked at the development of the child at every stage, it becomes easy for the communicator to package his or her information that is relevant to the receiver. For example, a five year old child will lean better if he or she is involved in the kind of game plays. A communicator to achieve this will employ the same communicative tool. Curriculum development in different institutions has also been a Piegets contribution. A primary school for instance has got a wider range of pupils. Their programs definitely will not be the same right from intra and extracurricular activities. There are those best for the lower classes where the juniors enjoy playing and the senior one with their own special program. Ways of communicating to different audiences for instance the idea of play in the cognitive development. His idea has also been used to develop both the intra and extra curriculum activities for the different institutions. REFERENCES Bredekamp, Sue, and Carol Copple. Developmentally Appropriate Practice in Early Childhood Programs. Washington, DC: National Association for the Education of Young Children, 1997. Ensen, E. (1999). Teaching with the brain in mind. Alexandria, VA: Association for Supervision and Curriculum Deve Vygotsky, L. (1978). Mind in society. The development of higher psychological processes. Cambridge, MA: Harvard University Press.lopment. Fromberg, D. P. (2002). Play and meaning in early childhood education. Boston: Allyn Bac Hughes, F. (1999). Children, play, and development (3rd ed.). Boston: Allyn Bacon McCune, L., Zanes, M. (2001). Learning, attention, and play. In S. Golbeck (Ed.), Psychological perspectives on early childhood education (pp. 92-106). Mahwah, NJ: Lawrence Erlbaum.

The 1997 and 1998 Asian Economic Crisis Essay -- Business Economics Ec

The 1997 and 1998 Asian Economic Crisis The purpose of this paper is to explore the causes of the 1997 and 1998 Asian economic crisis; and to research the effects of the crisis in each of the following categories: 1. The effects of the crisis in the countries involved in the economic crisis of 1997-98. 2. The effects on the governments affected by the crash, and 3. The effects that the Asian crisis has had on the differing world markets as well as the effects that it will continue to have (if any) on the world markets in the near future. We will also present our analysis of the causes and our predictions as to what the future will be for the countries involved. The paper will first look at the causes behind the crash. We can see that the main factors include current-account imbalances, financial over-lending, banking problems, extremely open economies, and a list of other factors. After we look at the causes behind the crash, we will give an analysis of how to avoid these problems in the future and what the repercussions will be in the Asian and Global markets. And at the end of the paper will be our conclusions (including how this has helped to better prepare us in the area of International Financial Management). The countries affected by the 1997 Asian crisis include the following: 1. Korea 2. Indonesia 3. Malaysia 4. Philippines 5. Thailand 6. China 7. Taiwan 8. Hong Kong (city-state) 9. Singapore (city -state) Introduction The Asian economic crash of 1997 surprised more than a few people. Ever since the period after World War II, the Asian economies had been following an economic model developed by the Japanese. This model favored export markets, domestic investment, and lower savings vs. hi... ...alaysia 2.10 -3.74 1.39 -0.11 -1.59 -3.75 0.58 Philippines -5.73 -3.00 -4.27 -8.53 -8.95 -8.80 -9.44 -12.30 Singapore 6.76 10.62 9.29 8.12 14.87 15.38 13.26 12.55 Thailand -7.75 -6.88 -4.70 -4.56 -5.18 -7.09 -6.65 0.14 China 2.75 2.86 1.03 -1.92 1.39 1.68 2.10 4.41 Taiwan 6.82 6.94 4.03 3.16 2.70 2.10 4.05 2.72 TABLE 4.0 GDP Growth. GDP Growth 1991 1992 1993 1994 1995 1996 1997 Korea 9.13 5.06 5.75 8.58 8.94 7.10 5.47 Indonesia 6.95 6.46 6.50 15.93 8.22 7.98 4.65 Malaysia 8.48 7.80 8.35 9.24 9.46 8.58 7.81 Philippines -0.58 0.34 2.12 4.38 4.77 5.76 9.66 Singapore 7.27 6.29 10.44 10.05 8.75 7.32 7.55 Thailand 8.18 8.08 8.38 8.94 8.84 5.52 -.043 Hong Kong 4.97 6.21 6.15 5.51 3.85 5.03 5.29 China 9.19 14.24 12.09 12.66 10.55 9.54 8.80 Taiwan 7.55 6.76 6.32 6.54 6.03 5.67 6.81 All Graphs Compliments of International Financial Statistics of the IMF

The Global Warming Debate Essay -- Climate Change Debate

The concept of global warming has become one of the most widely debated and controversial topics of our time. Scientists learned long ago that the earth’s climate has powerfully shaped the history of humanity. However, it is only in the past few decades that research has revealed that humans have a significant influence on the climate as well. A growing body of scientific evidence indicates that since 1950, the world’s climate has been warming, primarily as a result of emissions from the burning of fossil fuels and the destruction of tropical forests. More importantly, an article titled "Global Warming" published in the New York Times shows that methane, a gas that is emitted from landfills, livestock and oil gas facilities, is a close second to the carbon dioxide impact on the atmosphere (â€Å"Global Warming†). Though there are many scientists who support and can prove that global warming really does exist, a team of scientists from Competitive Ent erprise Institute (CEI) spend their time and energy disproving the myths behind global warming. According to the CEI website, CEI is a company that specializes in debunking those who warn about global warming and climate change (Competitive Enterprise Institute). CEI was founded in 1984 by a group of scientists who all wanted to answer the same question: is global warming real or is it a myth? A compelling argument is presented by the scientists who work for CEI who believe that global warming is a bunch of nonsense that the government wants the public to believe. I believe that instead of believing what the government tells us is true about global warming, we should take action and find the truth ourselves. My argument will begin with an analysis of ... ...hange.† The EPA: Climate Change- Science. EPA, 2011. Web, 9 Nov. 2011. â€Å"Global Warming.† New York Times. 30 Sept. 2011. N. pag. Print. Hawken, Paul. Blessed Unrest. 1st ed. New York: Penguin Group, 2007. 2. Print. "Home." The Greens/Green Party USA. Green Party, 2011. Web. 10 Nov. 2011. Horner, Christopher C. The Politically Incorrect Guide to Global Warming: (and Environmentalism). Washington D.C.: Regnery Publishing, 2007. Print. Jenkins, Amber. Site editor. "Global Warming: Vital Signs of the Planet." Climate Change: Evidence. NASA, 2011. Web. 10 Nov. 2011. Johnson, Paul. â€Å"The Nonsense of Global Warming.† Forbes. 182. 6. (2008): 25. Print Kump, Lee R. "The Last Great Global Warming." Scientific American. 305.1 (Jul 2011): 56-61. Print. Starck, Walter. "Global Warming - Myth, Threat or Opportunity." National Observer. Winter.77 (2008): 43-47. Print.

Cyber Addicts :: essays papers

Cyber Addicts The Longest River: Denial A hallmark of someone who is engaging in this addiction pattern, but who has not accepted that their behavior is out of their control, is denial. Denial is a psychological defense mechanism that enables a person to continue to engage in a behavior in spite of relatively obvious negative consequences on their life. It’s a way to protect ourselves from seeing or feeling things that are unpleasant. In the case of the gambling addict, there may be repeated warnings from his or her spouse that they will not tolerate continued spending of household savings, job loss, and constant harassment by creditors. In light of this, the gambling addict will still deny that they have a problem with gambling and will believe that they have complete control over their actions. Denial permits one to distort reality, a very powerful psychological defense; it can have devastating consequences on our life, and the ability to disregard such negative consequences while continuing the behavior is a hallmark of denial. Denial is present, to some extent or another, in all addictions. It’s necessary, in the development of an addictive process, to experience a sense of denial while the addiction is beginning to take hold. Otherwise we would not continue with the addictive behaviors. Because of denial, the impact of our negative behavior is never fully appreciated until the consequences become so overwhelming that they can no longer be ignored. This is sometimes referred to as "hitting bottom." People may continue their behavior indefinitely, with no recognition of the negative consequences of their actions, in spite of numerous personal disasters. Often an individual will not seek help for a specific problem, unless they’ve recognized that they are no longer in control of the situation and need help. This usually happens at a point when the negative impact of their addiction has become grossly obvious and their denial is broken. It is a process that cannot be rushed . Each person has to discover their own time frame for how and when to deal with their addiction. This, of course, can be very frustrating for family and friends of the addict, who often notice the problem long before the addict does. Negative consequences of Internet use vary considerably. I have been consulted on Internet cases where employees have been caught using their work computer for personal Internet access (in some cases wasting considerable company time and/or downloading sexually related material onto their computer).

Liverpool one shopping development Essay

Liverpool’s CBD needed regeneration for a variety of reasons. During WW2, it was bombed heavily, due to it being a major port for resources from the USA. During the 1960s, it was rebuilt too quickly and then fell into disrepair before 2000, when the design and infrastructure was outdated. Many parts of the city, especially the CBD suffered from urban decline, with its population dropping by 50% and 45% of its industry also leaving. In addition, Liverpool faced competition for shopping by nearby Manchester and Chester, as well as out-of-town shopping centres like the Trafford Centre. Therefore, Liverpool’s CBD needed regeneration to be more attractive to consumers, and regain its spot in the top 5 shopping destinations in the UK. Liverpool One, the project to rejuvenate Liverpool’s CBD was completed in 2008. It was opened in phases on 29 May and 1 October 2008, with the final residential lots opening in early 2009. In the same year, Liverpool was named as the European Capital of Culture. Its total cost is approximately ? 1billion, with 42 acres of Liverpool city centre being redeveloped. It includes 3000 parking spaces, 169 stores or services, as well as a 5 acre park, and 500 new apartments. It also contains a 14-screen cinema and a 36-hole adventure golf centre. Shops present include Debenhams, John Lewis, Ted Baker, Waterstones, Starbucks, Topshop and Caffe Nero. These are all mainly comparison, high-order goods which are chain stores. The area is indoor, yet also mainly open-air. It is of a modern design, and is two storeys tall. There are many cafes and food areas, with many benches. There are also electronic maps and information panels across the centre. The pedestrian areas are wide and escalators are available to proceed to the higher floors. There have also been other improvements in the CBD, such as the rejuvenation of the Docks and the introduction of the Merseytram tram line in the CBD. As well as this, many roads and smaller streets in Liverpool have been rejuvenated and rebuilt as part of the redevelopments. Areas such as Princes Dock and the Kings Waterfront have seen heavy redevelopments. These have been to attract more tourists and shoppers to the CBD. The project has overall been successful as of yet, with 83% of consumers thinking that the city centre has improved. 91% of people said they were likely to return to Liverpool, and enjoyed the experience. And now, 40% of the shops in Liverpool One are new to the city, showing the popularity of the area. The previously redeveloped Albert Dock has been receiving an extra 100000 visitors per week, with Liverpool One itself receiving over 120000 visitors in the first day, and 13 million in the first year. It is safe the say the rejuvenation of Liverpool’s CBD has been a success, and that Liverpool One has played a big part in reversing the effect of urban decline.

A hero that I most admire by Zanis

Despite all these hardships, my mom still managed to get an education, start a family and accomplish something that would change the course of my life, forever. She worked and worked and worked, and, eventually, she saved up enough money to fly me over to Ireland to have a better childhood and lifestyle than she had, I admire that woman because she went above and beyond to make sure that her child would receive a better education, a better life and a secure future where we don't have to worry about where our next meal is owing from.Secondly, I admire her because of her strength. She's been through hell and back, and, amazingly, she's still here, standing tall. About eight years ago, my mom and dad were divorced. When I heard the news, I was so little, I broke down and cried. My father was my world, my everything, and to know that I could lose him at any given moment scared the life out of me. Just the other day, I asked my mom why she never cried. She responded, â€Å"Are you kiddin g me†, I would cry all the time. I would cry when you kids were off at school. I would even cry myself to sleep sometimes.I Just wouldn't cry In front of you kids or your step-father, because I knew that I had to keep a straight face. I had to be the rock that kept the family grounded. She was the rock then, and she's still the rock now. Lastly, I admire her because she's as quick as a whip and she's more Independent than anyone I know. She's a clever one I tell you. It seems Like whenever anyone In my family comes down with an Illness, she has the cure. If you are living under my mom's roof there's absolutely no deed for missing days off school because of some Illness.Just give her fifteen minutes to mix up a homemade remedy and you're cured. On top of that, my mom Is also very clever. If the check engine light lights up, my mom can take care of It. When the time to file taxes comes around, she's got It. A lot of people look up to celebrates Like Kim Sardinian or Jeremy Line. Now don't get me wrong, those celebrates are great and all. But, I don't admire them the same way that I admire my mom. She's an Incredible human being whoso hardworking, strong, clever and Independent. I admire her courage and her resilience.She Inspires me and my slings to be better people and to give life own very best shot. A hero that I most admire by Azans By Pakistani sometimes. I Just wouldn't cry in front of you kids or your step-father, because I knew as quick as a whip and she's more independent than anyone I know. She's a clever one I tell you. It seems like whenever anyone in my family comes down with an illness, she has the cure. If you are living under my mom's roof there's absolutely no need for missing days off school because of some illness.Just give her fifteen minutes to mix up a homemade remedy and you're cured. On top of that, my mom is also very clever. If the check engine light lights up, my mom can take care of it. When the time to file taxes comes around, she's got it. A lot of people look up to celebrities like Kim Sardinian or Jeremy Line. Now don't get me wrong, those celebrities are incredible human being who's hardworking, strong, clever and independent. I admire her courage and her resilience. She inspires me and my siblings to be better people