According to current theories of evolution of organic world Essays

According to current theories of evolution of organic world Essays According to current theories of evolution of organic world Paper According to current theories of evolution of organic world Paper Essay Topic: Current According to current theories of evolution of organic world, total diversity of biological species evolved from universal single-celled progenitor organism of extremely primitive constitution. These progenitors were heterotrophic and received nutrients from the primal ocean, enriched by simple organic compounds. Subsequent differentiation of these first organisms resulted in formation of eucariotic cells, autotrophic cells capable of photosynthesis and first multicellular colonies. As a result of intensive photosynthesis large amounts of free oxygen appeared in the atmosphere. Thus more effective aerobic ways of metabolism became possible. Having mastered photosynthesis and breathing, living organisms started to acclimate to the different zones and locations. These organisms were subjected to different sets of environmental factors. While adapting to these different conditions, organisms obtained different sets of adaptive features that were secured by the natural selection. The deeper was specialization of the group of organisms, the more unique set of features it developed. Thus the biological diversity had formed. 2. I am agree with the theory of evolution, because it explains in a logical and consistent way how the life had emerged and developed to its current diversity of species. Also theory of evolution explains the processes that are implemented widely by the human race since stone age to cultivate species of plants and animals in a fashion most fit to satisfy the needs and requirements of certain climatic zone. Application of principles of natural and artificial selection allows to predict approximately what effects will have influence of certain factors during production of new breed or species and how should directional selection be performed to cultivate breeds or sorts with desired qualities. Theory of evolution also makes sense of paleontologic discoveries and allows to analyze and predict relation between more or less distant groups of organisms based upon constitution of their predicted common progenitors. 3. Artificial selection and genetic engineering are widely applied in contemporary scientific research works, industrial processes and in production of agricultural goods. Logically arises question if these artificial, human-governed factors could influence natural processes of evolution. Artificial selection is, in fact, natural selection that is directed and controlled to obtain certain desired features in a breed of an existent species. Artificial selection can result in formation of new species only if applied continuously over very extended periods of time. Such activity may contribute certain scientific interest but hardly could be economically profitable and, hence, hardly can be expected to happen. Genetic engineering, though, is a tool that is potentially capable of much more swift and radical changes than natural or artificial selection could ever provide. So in theory it is possible to expect certain impact of products of genetic engineering upon natural evolution. That is why experiments based on genetic engineering should be designed carefully and well-thought before application. : 1.  Ã‚   BCB705 Biodiversity: Chapter2 Evolution of Biodiversity. 3 Jun. 2008. The Department of Biodiversity Conservation Biology and The University of the Western Cape. 3 January 2009 http://planet.uwc.ac.za/nisl/biodiversity/Chapter2/index.html

How Blue Lava Works

How Blue Lava Works Indonesias Kawah Ijen volcano has gained internet fame for Paris-based photographer  Olivier Grunewalds photographs of its stunning electric blue lava. However, the blue glow doesnt actually come from lava and the phenomenon isnt restricted to that volcano. Heres a look at the chemical composition of the blue stuff and where you can go to see it. What Is Blue Lava? The lava that flows from the Kawah Ijen volcano on the island of Java is the usual glowing red color of molten rock flowing from any volcano. The flowing electric blue color arises from the combustion of sulfur-rich gases. Hot, pressurized gases push through cracks in the volcano wall, burning as they come into contact with air. As they burn, sulfur condenses into a liquid, which flows downward. Its still burning, so it looks like blue lava. Because the gases are pressurized, the blue flames shoot up to 5 meters in the air. Because sulfur has a relatively low melting point of  Ã‚  239 °F (115 °C), it can flow for some distance before solidifying into the familiar yellow form of the element. Although the phenomenon occurs all the time, the blue flames are most visible at night. If you view the volcano during the day, it wouldnt appear unusual. Unusual Colors of Sulfur Sulfur is an interesting non-metal that displays different colors, depending on its state of matter. Sulfur burns with a blue flame. The solid is yellow. Liquid sulfur is blood red (resembling lava). Because of its low melting point and availability, you can burn sulfur in a flame and see this for yourself. When it cools, elemental sulfur forms a polymer or plastic or monoclinic crystals (depending on conditions), that spontaneously change into rhombic crystals. Make Plastic SulfurMake Sulfur Crystals Where To View Blue Lava The Kawah Ijen volcano releases unusually high levels of sulfuric gases, so its probably the best place to view the phenomenon. It is a 2-hour hike to the rim of the volcano, followed by a 45-minute hike down to the caldera. If you travel to Indonesia to see it, you should bring a gas mask to protect yourself from the fumes, which may be harmful to your health. Workers who collect and sell the sulfur typically do not wear protection, so you can leave your mask for them when you leave. Although the Kawah volcano is most readily accessible, other volcanoes in the Ijen may also produce the effect. Although it is less spectacular at other volcanoes in the world, if you view the base of any eruption at night, you may see the blue fire. Another volcanic location known for the blue fire is Yellowstone National Park. Forest fires have been known to melt and burn sulfur, causing it to flow as burning blue rivers in the park. Traces of these flows appear as black lines. Molten sulfur may be found around many volcanic fumaroles. If the temperature is high enough, the sulfur will burn. Although most fumaroles arent open to the public during the night (for fairly obvious safety reasons), if you live in a volcanic region, it might be worth watching and waiting for sunset to see if there is blue fire or blue lava. Fun Project To Try If you dont have sulfur but want to make a glowing blue eruption, grab some tonic water, Mentos candies, and a black light and make a glowing Mentos volcano.

Secure Webbased Application Essay Example | Topics and Well Written Essays - 2000 words

Secure Webbased Application - Essay Example A Research methodology is a set of underlying principles behind the collection of models, theories, ideas, and hypothesis. Collectively, research methodology is a technique of collecting data systematically (Rajeev, 2009). For this research the data was analyzed from the previous researches in the literature review section. The authenticity and contingency of this paper depends upon the validity of study data, the reliability of measures taken to collect the data, as well as the time taken to conduct the analysis. Here I would like to tell you that the data was collected from _________ number of respondents through _________(tool used). This data collection part of the research took approximately_________(time consumed for data collection). Basically Single Sign On system cannot accomplish the goals on its own. In order to triumph over the challenges in user understanding and security obstacles, security and usability professionals require putting efforts and working more strongly to gether (Connolly, 2002). In this research, the ultimate solution will be produced which will allow the creation of a "strong": password (contains letters, numbers and special characters) that will open all the authorized applications. As we are using here the Single sign on method so some of its benefits are listed over here: If an employee does forget their one password, he or she c... Frequently results in significant password help desk cost savings If an employee does forget their one password, he or she can easily reset it by using the preset authentication line. Both are factors that have need of extraordinary concerns. Our initial research was done on the internet to discover seller password synchronization tools that would fill our total requirements. We piled up a list of vendors that offer Single Sign On products. A new list of needs and wants was created to incorporate total requirements and other assessment criteria. Some of our initial requirements were that the security system must be able to synchronize password between different platforms, should be able to plot user ids from one platform to another, should provide password status synchronization between different platforms, to implement host platform password format rules across the diverse server platforms. Next step of our research methodology is to develop some evaluation criteria. Our analysis has shown that several flaws in the evaluation criterion and specifi cation can lead to vulnerable implementations (Thomas, 2003). Based on this comment of Thomas we have selected cost, Support for Tandem, Support for other security platforms, and lastly the clearness to application development as our evaluation criterions. Now these criterions were to be tested and verified. Verification of criterions (testing): As mentioned earlier the purpose of this paper is to develop a simple and secure web-based application sign-on method in order to increase the security, reduce the risk to identify theft by reducing the passwords number of the web- based applications and the tool for encryption which will be used here is ASP.net. So from the above

Why do we love and cheat Research Paper Example | Topics and Well Written Essays - 1000 words

Why do we love and cheat - Research Paper Example Love has always been an inspiration for people around the worlds in all ages and civilizations. However, there had been always a dark side attached to the romantic stories of earlier times .This was that the lovers always get desperately obsesses with each other and mostly are ready to give up their life for this immeasurable emotional and physical attachment. According to (Obringer) â€Å"Love is a chemical state of mind , that's part of our genes and influenced by our upbringing. The scientists are discovering that the same chemical process that takes place with addiction takes place when we fall in love†. Love is a beautiful experience, but the other side of it is very dangerous and vicious and that is cheating stage. Cheating has always been a hidden part of love and many have been victimizes to this hazardous phenomena. However, with all this turmoil and fatal turns and twists, people still knowingly engage in love affairs. We never want to stop loving, after all the nega tive emotions we have been through, we still want to fall in love. This is where the scientist, anthropologist and psychologist get confused and they are definitely sure that love is not a chemical play but largely something beyond it. Helen Fischer here is talking about the mysterious topic of love and cheating and how all this works out in the brain of an individual. Helen is an anthropologist who researches on gender differences and human emotion and behaviors. She here explains that love is a concept which has mesmerized men and women at all times of history and the idea behind it is still unknown to human species. But loads of experiments and researches have been undertaken by Helen to understand the real reason behind why people fall for a particular person leaving the rest behind. She states that people are even ready to die for the person they loved which shows us the power of love and affection. From her speech we can make out that the real culprits behind love is the chemi cal rushing through our nervous system. The chemical dopamine has an upper hand in developing love and making the people involved in love addicted to a particular person. Dopamine is considered to be the pleasurable chemical which gives a felling of happiness and bliss to the people involved in romantic relationships. Helen states that, lovers she experimented had rush of chemicals in their brain and according to her love is a combination of lust, attachment and romantic feeling. However, it is not only human who have this chemical movement in brain but animal also do feel the same. As per (Ghosh) â€Å"In animals, scientists have observed that a chemical called oxytocin is involved in developing a bond between a mother and her young†. Apart form loving, people also do cheat and it is not always men who cheat but also women commit this sin. According to Helen, world can be a deadlier place, ff love never existed between people and this is an extremely worthy statement. Withou t love what would be the purpose of existence for human being. It could be utterly foolish to tell that eating, mating and defending is the sole purpose of life. A life without the feeling of love is bland, less purposeful and deadly. It would not be wrong to mention that no one would want to live this life without feeling love or giving love to someone. Helen here explains that women are more loving, undestanding and articulate and communicative than men. She explains that both of men and women brain work different and it is definitely an undeniable truth. â€Å"On average men; and women’s brains are not the same. Men’s and women’s were engineered , in part to handle quiet different tasks ,and that engineering is expressed in us

Yom Kippur Essay -- essays research papers

Yom Kippur   Ã‚  Ã‚  Ã‚  Ã‚  Yom Kippur is the most important holidays for the Jewish. It is a time for people to seek forgiveness from others. Yom Kippur is important because it comes just before the Jewish new year so that people can have a fresh start for the new year. Yom Kippur also gives people a chance to look back on the past year and plan for the upcoming year.   Ã‚  Ã‚  Ã‚  Ã‚  Yom Kippur dates back to biblical times when animals were used to transfer sins to. The first animal that was used was a goat, but soon roosters for males and hens for females were used. The sins were transferred from people to the animals by tying a rope to the fowl's legs and then spinning around the head of the person who was transferring their sins. While the fowl was being spun the person who was transferring their sins would begin chanting. When the ceremony was finished the animal would be sent away into the dessert. Yom Kippur is practiced very differently today. Instead of transferring their sins to animals people donate money to charities and throw stones into ponds.   Ã‚  Ã‚  Ã‚  Ã‚  On the night before Yom Kippur, people prepare for the following day's fast by eating an enourmous meal. Following the meal candles are lit and the Shehecheyanu is recited to bless the candles. The following day is spent at the synogauge where services are conducted all day long. The most important part of the services is when the rabbi asks everyone to take time to seek forgiveness of anyone whom they may have hurt in some way in the past year. People must seek forgiveness because the Jewish feel that forgiveness is not something that may be given, it is something that must be sought after. Not wanting to start the new year with any grudges, the entire congregation gets up and begins seeking forgiveness.   Ã‚  Ã‚  Ã‚  Ã‚  At sundown the fast is over. The congregation leaves the synagouge and goes home. When they get home the break the fast by eating a huge meal. This meal marks the end of Yom Kippur. Timeline of The Hebrews 922 B.C.  Ã‚  Ã‚  Ã‚  Ã‚  Isreal breaks up after the death of Solomon. Splits into a northern and southern kingdom with Shechm the capital of the northern half and Jerusalem as the capital of the southern half. 876 B.C. King Omri makes Samariai new capital. 842 B.C. Queen Jezebel imposes the cul... ... campaign so he cold be consulted at crucial points during the campaign. All of these were done to gain God's will and determine his wishes.   Ã‚  Ã‚  Ã‚  Ã‚  The main form of battle the Hebrews engaged in was siege warfare. They first would attempt to capture the city's water supply. Once they controlled the water they would cut of the supply of food from outside the city. Once they had accomplished these the would wait for months and sometimes years. This would cause the city to resort to it's stored food. Once the stored food ran out, people either died of malnutrition, paid high prices for food on the black market, or resorted to cannibalism. This method of battle proved to be highly effective for the Hebrews.   Ã‚  Ã‚  Ã‚  Ã‚  The reason for much of the Hebrews success was their attitude toward war. Because of their belief that war was holy they got an enormous amount of support from their people. Also, believing that the result of the wars they were fighting was determined by what their God wanted had to have given the Hebrews some hope even when they were losing. Without their attitude towards was the Hebrews would have been a much weaker opponent.

Ethical and moral grounds Essay

From a moral point of view, the truth of the above statement seems so convincing that it would be very difficult to make an argument against it. Victor Frankenstein’s creation of the monster and subsequent rejection of him is questionable on both ethical and moral grounds so we feel that surely he is responsible for his creation’s crimes – and it is the issue of responsibility that goes to the heart of the question of who is the ‘true’ murderer. However, over the course of the book, we see the monster evolve from a child-like creature without any understanding or language into one who becomes sensitive, eloquent, cruel and violent. Consequently it could be argued that with this change came moral awareness and therefore the true responsibility for the murders. By examining the events that lead to the deaths of William, Justine, Clerval and Elizabeth, this essay aims to establish who bears the ‘true’ responsibility for the murders rather than just whose hands committed the crime. The death of Frankenstein’s younger brother William is perhaps the most appalling, as William is only a child, and the monster’s excitement at what he has done shocks the reader even more: ‘I gazed on my victim, and my heart swelled with exultation and hellish triumph'(p117). This reaction to the death of a child seems unbelievably evil – yet the monster’s joy is not really in William’s death – it is actually in the realisation that he can hurt and therefore revenge himself on Victor: ‘I, too, can create desolation; my enemy is not impregnable’ (p117). Also, although the reader would expect to feel no sympathy whatsoever for the assailant of such a crime, Shelley uses it to show the extent of prejudice even in society’s youngest members which has the effect of catching the reader off guard. Desperate for human company, the monster incorrectly reasons that the ‘little creature was unprejudiced, and had lived too short a time to have imbibed a horror of deformity’ (p117). This has the unexpected effect of making the reader feel sorry for the monster as well as the victim, because by now Shelley has developed him into a thinking, sensitive being who has still been completely rejected by all – even a child. Although the reader is horrified by the murder, the monster’s intention to abduct William ‘to educate him as [his] companion and friend’ is at least as pathetic as it is wrong, and therefore somehow also human and mitigating. Nevertheless, William’s murder was not portrayed as being premeditated but it was definitely a deliberate and reasoned act of vengeance: ‘Frankenstein! You belong then to my enemy†¦ you shall be my first victim’ (p117) and so it seems to make holding Victor solely responsible for it extremely difficult. The death of Justine however is not only the most damning for Victor, because he withholds information about her supposed crime for the most selfish of reasons, but for the monster as well. Under the pretext of fearing he will be dismissed as a madman, Victor remains silent about the monster. Yet since he is already thought to be ‘mad’ this is hardly a convincing reason. Nearer the truth is his fear of being abhorred by mankind for creating the monster, and it is for this weakness that Shelley ensures we feel less sympathy for Victor. The monster too is at his most despicable and calculating as he deliberately plants the incriminating evidence of murder on the innocent Justine and we feel that there is little to choose between him and Victor. However, it is significant that Victor himself sees Justine’s trial as some kind of judgement on his arrogance in creating the monster in the first place and even acknowledges that the true responsibility for both William’s death and Justine’s eventual execution should be his: ‘It was to be decided whether the result of my curiosity and lawless  devices would cause the death of two of my fellow-beings: one a smiling babe, full of innocence and joy; the other far more dreadfully murdered†¦ ‘ (p61). In failing to save Justine from execution, Shelley is drawing attention to Victor’s failure to resolve the moral dilemma he is in, which conveniently protects him as well as the monster. Also, she is drawing attention to the corruption of the courts and the church in accepting a confession from Justine extracted under the threat of withholding her last rites. The murder of Clerval reveals how sophisticated the monster has become in psychological torture. Although William’s murder happened after a chance meeting, Clerval’s, and later Elizabeth’s, is part of the monster’s premeditated plan to revenge himself on Victor and he knows that the best way to destroy him is by attacking those he loves. Unlike the unplanned murder of William that left the monster feeling exhilarated and powerful, he describes the ‘anguish’ he felt and how his ‘heart was poisoned with remorse ‘ (p. 188) after Clerval’s death. These painful recriminations show that the monster is capable of remorse and compassion as well as cunning, and yet condemn him all the more. This is not the picture of an ignorant or backward monster who could not help himself, but one of someone who could perhaps have chosen differently. Even more incriminating is Elizabeth’s death, where the monster’s threat to Victor that he will be with him on his wedding night again makes it difficult to hold Victor solely responsible, even though he left her alone and open to attack. This murder is not just to punish Victor for abandoning him, but is the monster’s revenge for cruelly destroying the female companion he so desperately needed. Thus we can see that although the monster may literally do the killing and is therefore clearly culpable, he is not solely and directly responsible for the murders. For this very reason it could be argued that neither is it completely satisfactory to say that Victor is the true murderer because he did not literally commit them: ‘I, not in deed, but in effect, was the true murderer’ (p72). It is impossible to address the question of who the ‘true’ murderer is in a literal way. For instance, Victor could never be held legally responsible for the murders because he did not physically commit them. The only way the question of responsibility can be answered is on ethical and moral grounds, but the problem with assigning blame and responsibility based on these considerations is that they are almost meaningless without a social context. In other words, it could also be argued that the ‘true’ responsibility for the murders goes beyond either Victor or the monster to society as a whole because once people start rejecting and alienating an individual they create outsiders. And once social rules and responsibilities cease to apply to an individual they are free to behave as monstrously as they like. However, if we believe that as members of society we are responsible for our actions, then we have to believe that Victor was ultimately responsible for all the deaths. If he had not been so arrogant as to obsessively pursue the mastery of nature and life over death, the monster would never have come into being. This was definitely a flaw rather than a strength in Victor’s character because Shelley shows him being punished by remorse and regret almost as soon as the monster is created, ‘I had gazed on him while unfinished: he was ugly then: but when those muscles and joints were rendered capable of motion, it became a thing such as even Dante could not have conceived’. This description of ugliness is extreme, and at the same time prevents us from sympathising with Victor because we do not understand why he continued with his experiment knowing others would certainly feel as repelled – if not more so. We wonder why an intelligent man didn’t anticipate society’s reactions to a creation as ugly and unnatural as he was making – or even his own reactions to such a creature, and realise that if he, its creator, could not love it then why would anyone else? The only logical answer is the morally questionable one of supreme arrogance and self-indulgence at the expense of all others: Society, family, and colleagues. Victor was totally repelled by the ugliness of the monster – and so was everyone else that set eyes on him, which resulted in his alienation and isolation. Yet it is more accurate to say that Victor didn’t actually create the monster by ‘making’ him, but by rejecting him. Only after being constantly rejected and driven out by everybody was he ‘wrenched by misery to vice and hatred’ (p188). It was neglect and the basic need of companionship that he craved that drove him to being a monster. Shelley does show the monster developing awareness of right and wrong, but also of mankind’s prejudice and intolerance of those who are different. She seems to be saying that being educated, from however noble a source, is not a substitute for being nurtured by a parent or society and that those who fail to give this nurture, like Victor, are the real monsters. In other words, Victor is the true murderer because he is the true monster.

Dwight Eisenhower Fast Facts

Dwight Eisenhower (1890 - 1969) was elected to the White House in 1952. He had served as the Supreme Allied Commander during World War II and was a hugely popular figure in the United States. He was able to carry 83% of the electoral vote. Ironically, he never saw active combat despite his many years in the military.   Following is a list of fast facts for Dwight Eisenhower.  For more in depth information, you can also read the Dwight Eisenhower Biography. Birth: October 14, 1890 Death: March 28, 1969 Term of Office: January 20, 1953 - January 20, 1961 Number of Terms Elected: 2 Terms First Lady: Marie Mamie Geneva Doud Chart of the First Ladies Dwight Eisenhower Quote: No people can live to itself alone. The unity of all who dwell in freedom is their own sure. ~Second Inaugural AddressAdditional Dwight Eisenhower Quotes Major Events While in Office: End of the Korean War (1953)Brown v. Board of Education (1954)Interstate Highway System Created (1956)Eisenhower ordered Federal troops to Little Rock, Arkansas to enforce integration (1957)Eisenhower Doctrine (1957) States Entering Union While in Office: Alaska (1959)Hawaii (1959) Related Dwight Eisenhower Resources: These additional resources on Dwight Eisenhower can provide you with further information about the president and his times. Dwight Eisenhower BiographyWant a more detailed look at Dwight Eisenhowers life from his childhood through his time as president? This biography provides detailed information to help you gain a better understanding of the man and his administration. Overview of World War IIWorld War II was the war to end aggression by ruthless dictators. The allies fought for humane treatment of all people. This war is characterized by extremes. People remember the heroes with fondness and the perpetrators of the Holocaust with hatred. Brown v. Board of EducationThis court case overturned the doctrine of Separate but Equal that had been allowed with the Plessy v. Ferguson decision in 1896. Korean ConflictThe war in Korea lasted from 1950-1953. It has been called the forgotten war because of its placement between the glory of World War II and the agony caused by the Vietnam War. Chart of Presidents and Vice PresidentsThis informative chart gives quick reference information on the presidents, vice-presidents, their terms of office, and their political parties. Other Presidential Fast Facts: Harry TrumanJohn F. KennedyList of American Presidents