Good Habits Essay Example for Free

Good Habits Essay It is said that early to bed and early to rise makes a man health, wealthy and wise. Early to bed and early to rise is a good habit. A habit means repetition of the same action in similar circumstances. All men have habits. There are good and bad habits. They are of different kinds. Habits are acts which men indulge in to satisfy their needs. These habits are developed or learn from different sources. Drinking water, taking breakfast, lunch and dinner and sleeping at nights are habits, based on instinct. Man has no control over thirst, hunger and sleep. They are therefore inborn habits. There are other habits acquired like brushing your teeth, taking a bath, wearing clothes, combing your hair etc., which help a man to look neat and healthy. A walk in the morning is a good habit for old men. The needs of society develop in men some good habits. Man is a social animal and he can not live in isolation. Respecting elders, wishing ‘Good morning’, ‘Good evening’ and ‘Good night’ are good habits. Serving the cause of poor and needy, and respecting the social laws like observing queue are good habits. Men live in groups. These groups influence some habits. A man laughs when others in the group weep. These are group habits. Man wants happiness and peace. Listening to music and reading a book are good habits, which help a man to spend a peaceful life. Going to a temple or offering daily prayers are habits, which serve the needs of the soul. Education is based on the principle of habit formation. Repetition makes learning easy. Learning a language i.e. speaking, reading and wring is based on habit. Similarly education helps in the development of good habits like punctuality, attention, concentration, cooperation, discipline etc As there are good habits, there are had habits too. We acquire them both from our friends and from the society in which we live. Smoking, drinking alcohol, drugging, speaking untruth, teasing the weak, committing acts of theft may all be considered as bad habits. Habits are easy to acquire but difficult to give up. They have a great hold on people and are not easily broken. So it is better not to acquire a bad habit than try to give it up later. Good habits lead to good manners.

General Structure of Electrical Power System

General Structure of Electrical Power System Introduction to Power generation The high voltage electric transmission is the bulk transfer of electrical energy, from generating power plants to substations. This is from the local wiring between high voltage substations and customers are referred to as electricity distribution. Transmission lines, when interconnected with each other, become high voltage transmission networks. Transmission lines mostly use three phase alternating current (AC), although single phase AC is sometimes used in railway electrification systems. High-voltage direct current (HVDC) technology is used only for very long distances; undersea cables. Electricity is transmitted at high voltages to reduce the energy lost in long distance transmission. Power is usually transmitted through overhead power lines. Underground power transmission has a very high cost and greater operational limitations. The main problem in the Power distribution is that electrical energy cannot be stored so it is generated based on the necessity. A control system is req uired to ensure electric power generations match the demand. Power generating plant low voltage is produced. The generator terminal voltage is then stepped up by the power station transformer to a higher voltage for transmission over long distances. Power Losses Transmitting electricity at high voltage reduces the fraction of energy lost due to resistance. For a given amount of power, a higher voltage reduces the current and thus the resistive losses in the conductor. At extremely high voltages, conductor and ground, corona discharge losses are so large that they can offset the lower resistance loss in the line conductors. Transmission and distribution losses are generally below 10%. In general, losses are estimated from the discrepancy between energy produce and energy sold to end customers; the difference between what is produced and what is consumed constitute transmission and distribution losses. In an alternating current circuit, the inductance and capacitance of the phase conductors can be significant. The currents that flow in these components of the circuit impedance constitute reactive power, which transmits no energy to the load. Reactive current causes extra losses in the transmission circuit. The ratio of real power (transmitted to the load) to apparent power is the power factor. As reactive current increases, the reactive power increases and the power factor decreases. For systems with low power factors, losses are higher than for systems with high power factors. At the substations, transformers reduce the voltage to a lower level for distribution to commercial and residential users. This distribution is accomplished with a combination of sub-transmission (33 kV to 132 kV) and distribution (3.3 to 25 kV). Finally, at the point of use, the energy is transformed to a low voltage. Power Load balancing The transmission system provides for base load and peak load capability, with safety and fault tolerance margins. The peak load times vary by region largely due to the industry. Power requirements vary by the season and the time of day. Distribution system designs always take the base load and the peak load into consideration. The transmission system usually does not have a large buffering capability to match the loads with the generation. Thus generation has to be kept matched to the load that prevents overloading failures of the generation equipment. Multiple sources and loads can be connected to the transmission system and they must be controlled to provide orderly transfer of power. In centralized power generation local control of generation involves synchronization of the generation units to prevent large transients and overload conditions. In distributed power generation the generators are geographically distributed and the process to bring them online and offline must be carefully controlled. The load control signals can either be sent on separate lines or on the power lines. To load balance the voltage and frequency can be used as a signaling mechanism. In voltage signaling, the variation of voltage is used to increase generation. The power added by any system increases as the line voltage decreases. Voltage based regulation is complex to use in mesh networks, since the individual components and set points would need to be reconfigured every time a new generator is added to the mesh. In frequency signaling, the generating units match the frequency of the power transmission system. In droop speed control, if the frequency decreases, the power is increased. Wind turbines and other distributed storage and generation systems can be connected to the power grid, and interact with it to improve system operation. 5.2 Power generation and distribution through overhead lines with single line diagram Electrical power system deals with the technology of generation, transmission and distribution of electrical energy. An electric power system consists of different subsystem are explained as follows I. Generation subsystem The conversion from one source to electrical energy through the process of electromagnetic conversion. This system consists of group of generation systems. Power system comes into existence with the growing demand of electrical energy. Power generations are classified as Hydraulic, nuclear power, fossil fuel and non-conventional power, solar power. II. Transmission subsystem The overhead transmission network transfers electrical energy from generating stations located at long distance to the distribution system. The Transformer and transmission line subsystems are designed in such way to transmit bulk power for consumption at the load line. The step-up transformers are used in various range of step-up voltage based on the requirements. A transmission voltage varies between 66 kV to 440KV in India. III. Sub-transmission system The sub-transmission network is the portion of transmission system connected to the high voltage substations using transformers. IV. Distribution subsystem By this process energy is connected to different distribution subsystem to a place a main transmission subsystem. A distribution subsystem consists of over headlines and underground cables. The distribution of power system is generally in two levels feeder or primary voltage at 11kV and secondary/consumer voltage at 415 Volt for three-phase and 230 Volt for single phase supply for house hold application. Each individual customer is connected to the secondary circuit through service leads and a meter. Distribution system is classified as Radial distribution system, loop distribution system and network distribution system. From the main switch electrical energy is distributed to the various points using distribution board system and tree system. V. Control subsystem This subsystem is formed by relays, switch and other control elements to protect other subsystems to protect faults and overloads to ensure efficient, reliable and economic operation of electric power system. Figure 6.1 Block diagram of single line power system Step-up and step down Transformers are used in all subsystems. At the sending end from generator step up Transformers are used and the receiving end step-down Transformers are used. Power and distribution Transformers are used in power line system depending upon the power handling capacity. Earthing The earthling of electrical installation is undertaken for the following reasons. To avoid shocks to a living body. To ensure the potential with respect to the earth of any current carrying conductor does not rise above its designed level. To provide safety to operating personal To avoid fire hazard due to leakage current. Representation of the transmission line A transmission line has series resistance, series inductive reactance, shunt capacitance and leakage resistance which are distributed evenly along its length. Except for long lines, the total resistance, inductance, capacitance and leakage resistance of the line can be concentrated to give a lumped-constant circuit which simplifies calculation. The particular lumped-constant circuit used depends on the length of the line and the required accuracy of the calculations. For the purpose of this introduction to power system calculations, we will consider a representation which is accurate for short transmission lines up to about 80 km in length. For this length of line, the shunt capacitance and leakage resistance can be ignored. It should be noted that this assumption is not valid for unloaded lines when the shunt capacitance dominates. Power system analysis is required for a large number of different purposes System design and control to maintain consumer voltage at statuary levels as affected by conductor sizing and transformer tap charger position. Fault calculations to ensure that the maximum fault current can be interrupted by circuit breakers or fuses and that large fault currents cause the minimum of damage to the power system. Design of protection systems to ensure faulty circuits are switched off rapidly (

Cesare Lombrosos Theory of Criminal Traits

Cesare Lombrosos Theory of Criminal Traits Abstract Cesare Lombroso’s (1960) Criminal Man led to a new discipline in criminology, placing a link between physical anomalies and crime. Certain attributes were said to be the result of a biologically inferior presence which led to a life of crime (Ellwood, 1912). An observational study interpreted a number of ‘mugshots’ made up of criminals and Psychology staff from Canterbury Christ Church University. Independent t-tests revealed that there was no difference between the two groups in terms of physical characteristics and ‘criminal’ rating. These findings tie in with previous research in the field (Goring, 1972; Saladin, Zalman Breen 1988). COMPARING THE PREVALENCE OF ‘CRIMINAL TRAITS’ BETWEEN CONVICTED CRIMINALS AND PSYCHOLOGY STAFF Cesare Lombroso (2006) is best known as the founder of the discipline criminal anthropology; the study of mental and physical traits associated with the ‘born criminal’. Lombroso published Criminal Man (2006), a famous study in which he attributed criminal behaviour to ‘Atavism’, an inherited condition in which offender’s demonstrated evolutionary throwbacks to more primitive humans. According to Lombroso (2006) the criminal was fundamentally a living anomaly concerned with pathological and atavistic characteristics (Ellwood, 1912). After studying 66 deceased criminals, Lombroso (2006) compiled a list of physical features assumed to be associated with criminal behaviour. Traits included asymmetrical faces and excessive body hair. A person was thought to be a criminal if they processed 4 or more traits. Charles B. Goring (1972) subjected 37 of Lombroso’s (2006) characteristics to empirical testing and compared 2,348 London convicts with a control group of young Englishmen. Goring (1972) found little support for Lombroso’s work, instead suggesting criminal behaviour is simply an inherited lack of common sense. Support for Lombroso comes from a study by Hooton (1939), in which 13,873 male prisoners were compared with 3,023 males from a general sample. Hooton attributed criminal behaviour to biological inferiority, assigning a number of features such as sloping foreheads to criminals. Hooton was, however, criticised for his circular reasoning. Criminals were assumed to be physically mediocre and those features which distinguished criminals from others could be classified as precursors of biological inferiority. Only a small number of modern studies have tested the relationship among attractiveness and criminal behaviour. Saladin, Zalman and Breen (1988) invited students to judge the physical attractiveness of a selection of male photos. Other students assessed the same photos and judged the likelihood that those pictured would commit a crime. Those rated as less attractive were more likely to commit crime. Similar results were also found in other related studies (Cavior Howard, 1973; Kurtzberg, 1978). The current study is building upon the previous contradictory evidence, and much like Goring (1913), the study will focus upon comparing Lombroso’s (2006) original anomalies within the criminal and general population. As a result of previous evidence my hypothesis states that there will be no difference between Lombroso’s (2006) ‘criminal traits’ amongst convicted criminals and the general population. Method Design The design of the experiment consisted of independent measures as both groups were separate from each other. Participants There were 30 participants in total, 15 were Psychology staff members from Canterbury Christ Church University and the other 15 were convicted criminals. Materials and Apparatus Materials required for the experiment included the 15 criminal mugshots, 15 staff mugshots and finally a criminal characteristics coding sheet. Procedure The procedure involved going through each photo and deciding whether each person had Lombroso’s (2006) original ‘criminal characteristics’. These characteristics consisted of: asymmetric head, flattened/twisted nose, large ears, fat lips, enormous jaw, high cheekbones, narrow eyes and excessive skin wrinkles. Each photo was judged upon these criteria and whether they were present or not. The final part involved deciding whether each person was a criminal or not which was based on Lombroso’s (2006) ideas that if you perceived more than four characteristics then you were a criminal. In terms of ethical considerations the use of photos from the staff members would have required consent as well as the right to withdraw from the study at any point. Results Overall frequencies for the ‘criminal characteristics’ identified in both sets of photos are given in Table 1. This data reveals that in terms of the ‘non- symmetrical face’ and ‘twisted nose’ characteristics these were marked as being present in the staff photos (4 and 8 time respectively) more so than for the criminal photos in which they were reported 2 and 6 times. All the other traits were identified more on the criminal photos however ‘enormous jaw’ and ‘high cheekbones’ were equally coded for at 7 and 9 times. Table 2 provides data showing the frequencies of the total numbers of ‘criminal characteristics coded for in each group of photos. Both groups receive more total ratings in the middle of the scale, with the majority coded for 2 or 3 criminal traits. An independent t test yielded t(28) = .756, p > .05. The hypothesis was accepted: there was no difference between the criminal classification of ‘st aff mug shots’ and ‘criminal mug shots’. Discussion Overall there was no difference between the criminal classification of the ‘staff mugshots’ and the ‘criminal mugshots’ which replicates similar findings obtained in studies by Goring (1972) and Kurtzberg et al, (1978). This implies that Lombroso’s original ideas and theories about certain characteristics leading to criminality have been undermined by this study. The data presented in table 2 can be described as normally distributed as the ends of the scale are sparsely occupied; however the majority of participants from both groups were coded as having between 2-5 criminal traits. According to Lombrosso a criminal was said to have four or more traits, therefore based on results obtained it can be said that the distribution of seemingly ‘criminal’ characteristics is actually very normal. One limitation to this study is that it is entirely subjective as one person is judging the photos on whether they are ‘criminal’ or not bas ed on a set of perceived traits. This may lead to a lack of reliability as the same result cannot be guaranteed if the study is repeated. A further limitation concerning subjectivity is the classification of the criminal traits, for instance what constitutes as ‘enormous’ when describing the jaw or ‘excessive’ when labelling skin wrinkles. Further in depth classification is required to establish whether a particular trait is present. Although the results from this study and others suggest that Lombroso’s (2006) method of criminal profiling is out of date, it has led to the use of similar methods using information such as upbringing or substance use to establish whether a person is likely to commit a crime. References Cavior, N., Howard, L. (1973). Facial attractiveness and juvenile delinquency among black and white offenders. Journal Of Abnormal Child Psychology, 1(2), 202-213. doi:10.1007/bf00916114. Ellwood, C. (1912). Lombrosos Theory of Crime. Journal Of The American Institute Of Criminal Law And Criminology, 2(5), 716. doi:10.2307/1132830. Goring, C. (1972). The English convict. Montclair, N.J.: Patterson Smith. Hooton, E. A., (1939).Crime and the Man, Cambridge, Massachusetts: Harvard University Press. Kurtzberg, R. L. (1978). Plastic Surgery on Offenders. In N. Johnston L. Savitz (Eds.), Justice and Corrections, New York: Wiley. Lombroso, C., Gibson, M., Rafter, N. (2006). Criminal man. Durham, NC: Duke University Press. Saladin, M., Zalman S., Breen, L. (1988). Perceived Attractiveness and Attributions of Criminality: What Is Beautiful Is Not Criminal,Canadian Journal of Criminology30(3), 205-215. Table 1 This table illustrates the present frequencies of each criminal characteristic as well as the total number of those classified as criminals in the ‘staff’ and ‘criminal’ mugshot categories. Face Nose Ears Lips Jaw Cheekbones Eyes Wrinkles Criminal Criminal 2 6 9 7 7 9 8 3 6 Staff 4 8 6 2 7 9 3 4 4 Table 2 Listed in this table are the total numbers of criminal traits identified for each type of mugshot, ranging between 1-6 characteristics. Number of ‘characteristics’ present after coding 123456 Criminal 045321 Staff 164220

Cali Cartel vs. Tijuana Cartel Essays -- essays research papers

The drug trade is a very large and complex system. There are many different organizations involved at different levels. There are groups that operate only in growing and selling the product, and only groups that buy and distribute the drugs. In this essay I will discuss the similarities and differences of two of the largest growers and sellers in the drug trade: The Cali Cartel of Columbia and the Tijuana Cartel of Mexico.   Ã‚  Ã‚  Ã‚  Ã‚  The Cali Cartel is the largest, richest, and most complex producers and distributors of cocaine. The cartel concentrates almost entirely in cocaine. Over time they have developed an extremely large and sophisticated distribution system and have generated an extraordinary amount of wealth. Because of their financial stability, they are able to buy planes, ships and warehouses as well as bribe government officials and pay the top lawyers and strongest mercenary groups for protection.   Ã‚  Ã‚  Ã‚  Ã‚  The Tijuana Cartel, also known as the AFO, or Arellano-Felix Organization, runs out of Mexico and is known as one of the most violent drug organizations in the world. The group is headed by Benjamin Arellano-Felix and his brothers Ramon, Eduardo and Javier. Ramon Arellano-Felix is a frequent member of the FBI’s Top 10 Most Wanted List. He is known as the most violent brother and is in charge of the group’s security. This group’s competitive edge is not in their distribution system or exorbitant riches but in their ruthless tactics. Because the group is conveniently located near the 2,000 mile border between the US and Mexico, they do not have to spend as much money or have as sophisticated distribution systems as The Cali Cartel does. This border consists largely of rugged terrain that is difficult to patrol. Mexican traffickers have mastered transportation methods over this border.   Ã‚  Ã‚  Ã‚  Ã‚  What the Cali Cartel lacks in location for transportation, they make up in location for raw materials. The Cali Cartel gets the cocoa leaves they need to make cocaine for extremely cheap and then sell it exponentially higher prices. At this rate, they are able to afford expensive transportation methods. The AFO makes up for this in diversity of product.   Ã‚  Ã‚  Ã‚  Ã‚  While the Cali Cartel operates exclusively in cocaine, the AFO distributes heroin, marijuana and methamphetamine... ...ce in Columbia and the two groups agree to a ceasefire, the growers would then be vulnerable to government intervention.   Ã‚  Ã‚  Ã‚  Ã‚  In Mexico, the AFO thrives on the large number of corrupt Mexican officials. The cartel makes it a very smart choice for a government official or law enforcer to help them. Not only are they bribed, but they are also threatened with violence. Everyone in Mexico knows from the history of this group that they mean business and any threat is very legitimate. Because of the large amount of corruption in the Mexican government, the Tijuana cartel flourishes.   Ã‚  Ã‚  Ã‚  Ã‚  Both of these cartels are custom made for the area they are located in. If the systems were to switch geographic locations, they would not be nearly as successful. Over the years, the groups have molded to form the perfect fit for a drug cartel to operate in their specific area. As things change, the group changes, it is because of their flexible nature that they have lasted so long. Because of all of these factors, the war on drugs has proven to be an extremely difficult one to win. Information gathered from the DEA website at http://www.usdoj.gov/dea

Why should women become priests? :: Essays Papers

Why should women become priests? Catholic Churches today and in the past 40 years or so have been starting to ordain women as priests. Most people think this is completely sacrilegious and revolting against the church. But, women do not want to become priests because they are angry, or because they want to win, or because they want to trample men’s feelings, but because they are searching for the truth about themselves as women, and so they can relate more to God. Let me explain. First, let me begin with feminism. Feminism is the belief that women and men are equal in dignity as human beings. Most people would agree that equal dignity, at times, has been denied for women. This changes attitudes, concepts, and structures to reveal this equality. Also, feminism is not just a call for women to have an equal place in the current system of the Church, but rather it challenges people to rethink the system itself in the light of women’s experience. Women do not want merely equal access to priesthood in the Church, they want to remake it (Bielgrien 13). Women continue to strive for equal status in the church. They are beginning to oppose more and more of the Church’s teaching. Feminists are now opposing the idea that humans have a â€Å"dual anthropology.† The Church supports this philosophy and explains that â€Å"women’s human nature is naturally different from men’s human nature† (Bielgrien 13). Arguments against the ordination of women imply this nature, in which sexual differentiation is seen as an essential element and therefore part of the divine plan that God wants. The dual nature of men and women is the ordaining principle for complementary roles, functions, and activities of women and men† (Bielgrien 13-15). However, women who are in favor of ordaining women priests say there is a â€Å"one-nature anthropology.† This philosophy claims that â€Å"there is no preordained role or function, beyond the biological, for either men or women since the appropriate activities of the individual are extrapolated from spiritual and personal characteristics† (Bielgrien 16).

Stem Cell Therapy Essay

Sepulveda Bio. Anthro. Tues 6-9 Cell Replacement and Stem Cell Therapy to Treat Neurodegenerative Disease Stem cell therapy is being used to treat neurodegenerative diseases such as amyotrophic lateral sclerosis or ALS, commonly referred to as Lou Gehrig’s disease. The disease itself, new therapies and treatments, along with a cure are currently being studied by universities and stem cell researchers. ALS is a progressive neurodegenerative disease which attacks the neurons in the brain and spinal cord that control voluntary movement, eventually leading to respiratory failure and death (Kamel et al. 2008). The current course of action for a patient with ALS is physical therapy and, if their budget allows, cell replacement therapy. However there is presently no cure and the patient will eventually have respiratory problems and die from the disease. Adult stem cells (ASCs) and blastocyst or embryonic stem cells (ESCs) are being used to treat amyotrophic lateral sclerosis in cell replacement therapy, yet this only slows the degeneration of their neurons (Goldman, Windrem, 2006).Research for both adult stem cell and blastocyst stem cell technologies are the only practical option in approaching a cure or more effective treatment for ALS. Both of these technologies require stem cells, but are challenging to safely retrieve and utilize through the current treatment methods, which is why it is essential to continue to support and fund this research. Cell replacement therapy is currently the only stem cell treatment of neurodegenerative diseases such as ALS, but researchers are trying to find new ways of treating and possibly curing ALS.Cell augmentation using stem cells could be the future of treatment for ALS but scientists are currently working to increase availability of the needed ESCs and ASCs to treat patients using cell replacement therapy. There are three different ways to harvest the necessary stem cells for neuron replacement: growing ESCs in vitro, har vesting stem cells from the brain or spinal cord of a live donor through biopsy, and harvesting from the brain or spinal cord of a donor post mortem (Sohur et. al. , 2006). The goal of treatment of ALS is to slow and eventually stop cell loss progressing to the point of functional impairment.To accomplish this goal, protecting the remaining neurons as well as replacing and augmenting damaged neurons is important. The ultimate goal, to cure ALS, is to fully restore authentic neuronal circuitry or â€Å"full systems reconstruction† (Ormerod et. al. 2008). Full systems reconstruction would consist of recreating a map of precisely patterned neurons of the correct type using the stem cells to send projections to the appropriate field within the brain. The cure seems virtually impossible with the technology currently available, but recreating neurogenesis may be possible in the future.Adult stem cell harvesting is difficult and costly when retrieving the stem cells needed to treat neurodegenerative diseases from brain matter or spinal fluid. Neurons are very specific cells in the brain and spinal cord and possess a special set of neurotransmitters depending on their function; this poses problems when harvesting ASCs (Zhang et. al. , 2006). The ASCs needed to treat ALS must be able to specialize and replace degenerating neurons affected by the disease. This procedure would not be possible without using stem cells to replace the damaged and degenerating neurons.However a problem associated with ASCs is rejection of foreign cells when transplanting ASCs taken through biopsy from a donor. Although biopsy from the patient receiving treatment is an option, the ASCs required come from the brain or spinal cord and can be very dangerous to harvest this way. Adult neural stem cells can be harvested from brain tissue, either from a deceased donor or through biopsy, and then grown in a culture (Ormerod et. al. , 2008). ASCs will not expand nearly as much as ESCs in cultu re and will differentiate into a limited number of neuron types.When using ESCs, which conform to the necessary specialized type of neurons, the lack of flexibility encountered in the ASCs is eliminated. Human embryonic stem cells (ESCs), however difficult to harvest initially, will multiply greatly when grown in culture. The ESCs are generated by in vitro fertilization and grown into the blastocyst stage before harvesting. The advantages of ESCs are boundless; the results of the therapy would not be obtainable without use of the stem cells to replace the damaged cells.The ease and frequency with which ESCs can be expanded in culture is a significant advantage over ASCs. Growing such high numbers of stem cells in this fashion can prove problematic though, while the cells reproduce indefinitely they become more susceptible to mutation and may cause tumors following transplant (Ormerod et. al. , 2008). Thus, a challenge rises to differentiate the cells fully before transplant or to gr ow many more cultures from different donor eggs, which are difficult and expensive to receive.ESCs are more easily specialized into neurons, oligodendrocytes, and glia needed to treat ALS than ASCs; but the possibility of tumors forming in the patient along with the cost and complication of creating new chains of blastocysts from donor eggs pose a disadvantage of using this technology (Ormerod et. al. , 2008). Taking into consideration ESC technology’s advantages and disadvantages, it is equally as viable an approach to a cure for ALS as ASC technology. ALS is an extremely destructive disease which unfortunately plagues a large population.ALS is difficult to treat because it is a neurodegenerative disease and requires brain surgery and neuron replacement. Both adult stem cell and embryonic stem cell therapies have potential to increase the quality of life for patients with ALS but they both have their own individual inherent risk that must be taken into account by the patient and doctors when choosing a stem cell therapy method. Donors are few and far between and the necessary cells are very specific for this particular procedure.Through an increase in research and development of new ways to multiply and store stem cells, along with an increase in donors, the road toward a cure will be a short one. Hopefully in the future the treatment will become easier, less costly, and less dangerous for the patient. Works Cited Larsen CS. 2010. Essentials of Physical Anthropology: Discovering Our Origins. New York and London: W. W. Norton & Company Ormerod, B. K. , Palmer, T. D. , & Maeve, A. C. (2008). Neurodegeneration and cell replacement. Philosophical Transactions: Biological , 363(1489), 153-170.Retrieved from http://www. jstor. org/stable/20210044 Sohur, U. S. , Emsley, J. G. , Mitchell, B. D. , & Macklis, J. D. (2006). Adult neurogenesis and cellular brain repair with neural progenitors, precursors and stem cells. Philosophical Transactions: Biological Scien ces, 361(1473), 1477-1497. Retrieved from http://www. jstor. org/stable/20209745 Kamel,, F. , Umbach, D. M. , Stallone, L. , Richards, M. , Hu, H. , & Sandler, D. P. (2008). Association of lead exposure with survival in amyotrophic lateral sclerosis.Evironmental Health Perspectives, 116(7), 943-947. Retrieved from http://www. jstor. org/stable/25071103 Goldman, S. A. , & Windrem, M. S. (2006). Cell replacement therapy in neurological disease. Philosophical Transactions: Biological Sciences, 361(1473), 1463-1475. Retrieved from http://www. jstor. org/stable/20209744 Zhang, S. , Li, X. , Johnson, A. , & Pankratz, M. T. (2006). Human embryonic stem cells for brain repair?. Philosophical Transactions: Biological Sciences, 363(1489), 87-99. Retrieved from http://www. jstor. org/stable/20210040

Greenland Glaciers

Geological Features: glacier is commonly white and made of ice. It may appear dirty near its end due to debris that it is carried or pushed by the movement o f the glacier. Glaciers can be massive in size stretching across continents (Greenland) or m ay be small sitting atop of mountains. Landscape is ice with some formation of dirt and other land mixed in due to movement. B. The size Of a glacier may depend on if on land or broken off from land.Greenland Ocean depending on where the glacier is from and the time period, different mineral s and elements may be present in the glaciers core. 2. Process(SE): Glaciers are formed when snow builds up for several years from snowfall that exceeds snowbell. Over time, as new snow compresses the axis ting snow, the weight causes the snow underneath to turn to ice. The hardening effect is Simi liar to what happens when you pack a snowball in your hand.The pressure from addition al layers of snow builds for up to thousands of years; the ice gets compressed so much the at the air is forced out and the glacier's color appears to be blue. A. Singularly confederacies ice. B . As snow builds up, the pressure causes ice to form below c . Color may appear blue due to the force AAA Real world Example(s): Greenland and the formation of ice on top of the land.