Saturday, March 14, 2020
Urie Bronfenbrenner received his bachelorÃ¢â¬â¢s degree from Cornell University in 1938, where he completed a double major in Psychology and in Music. He then went on to graduate work in Developmental Psychology, completing his Masters Degree at Harvard followed by his Doctorate from the University of Michigan in 1942. From the beginning of his scholarly work, Bronfenbrenner has pursued three themes: 1) Developing theory and corresponding research designs at the frontiers of developmental science; 2) Laying out the implications and applications of developmental theory and research for policy and practice 3) Communicating - through articles, lectures, and discussions - the findings of developmental research to undergraduate students, the general public, and to decision-makers both in the private and public sector. Bronfenbrenner has also played an active role in the design of developmental programs in the United States and abroad, including being one of the founders of Head Start. In the immediate future, he will be focusing on four main themes, looking at each to evolving theory and research to suggestion and applications for programs and policies. I. Growing Chaos in the Lives of America's Children, Youth, and Families: Consequences and Countermeasures. accumulated research evidence indicates that mounting disruptive trends taking place in our society over the past four decades have been undermining the competence and character of our America's children, youth and families to the point that continuation of our present policies and practices threatens the future of the nation. At the same time, recent advances in delopmental theory and research point not only to the intervening processes that produce this disarray but also to conditions and mechanisms that might be invoked to counteract the prevailing trends. II. Proximal Processes as Engines of Development. Proximal processes are one such mechanism. They involve "pattern... Free Essays on Urie Bronfrenbrenner Free Essays on Urie Bronfrenbrenner Urie Bronfenbrenner received his bachelorÃ¢â¬â¢s degree from Cornell University in 1938, where he completed a double major in Psychology and in Music. He then went on to graduate work in Developmental Psychology, completing his Masters Degree at Harvard followed by his Doctorate from the University of Michigan in 1942. From the beginning of his scholarly work, Bronfenbrenner has pursued three themes: 1) Developing theory and corresponding research designs at the frontiers of developmental science; 2) Laying out the implications and applications of developmental theory and research for policy and practice 3) Communicating - through articles, lectures, and discussions - the findings of developmental research to undergraduate students, the general public, and to decision-makers both in the private and public sector. Bronfenbrenner has also played an active role in the design of developmental programs in the United States and abroad, including being one of the founders of Head Start. In the immediate future, he will be focusing on four main themes, looking at each to evolving theory and research to suggestion and applications for programs and policies. I. Growing Chaos in the Lives of America's Children, Youth, and Families: Consequences and Countermeasures. accumulated research evidence indicates that mounting disruptive trends taking place in our society over the past four decades have been undermining the competence and character of our America's children, youth and families to the point that continuation of our present policies and practices threatens the future of the nation. At the same time, recent advances in delopmental theory and research point not only to the intervening processes that produce this disarray but also to conditions and mechanisms that might be invoked to counteract the prevailing trends. II. Proximal Processes as Engines of Development. Proximal processes are one such mechanism. They involve "pattern...
Wednesday, February 26, 2020
Smartphones v. Computers - Essay Example Since the start of time, the human race has been trying to find ways to store and move with information without major challenges. Advanced smartphones have been equipped with large storage, which is also supplemented by the external storage disk. Smartphone users have the habit of downloading or transferring significant content. It makes it easy to access information without connectivity. Most people use large storage in smartphones for pictures, music, video, and messages. The convenience that comes with large storage in smartphones explains the high clamor for smartphones in the society. The built-in storage in most smartphones falls within the range of 8GB to 64GB. The large storage has made it easy to access, transfer, and share all types of data. It should be noted that the storage range provided is enough for most people. The relatively high portability that comes with smartphones makes it easy and convenient to carry it everywhere. They are designed and manufactured for easier handling and carrying. They are a bit bigger than standard mobile phones. Portability makes it easy to move with smartphones, which serve as personal data assistants, video and music player, and a connectivity tool. Smartphone manufacturers use ergonomics helps in designing smartphones that are easy to hold and use. Most of the phones have designed to be slim and light to fit into the pocket easily. The essence is to make it very easy to move around with the phone with minimal discomfort. Laptops (Computer)
Monday, February 10, 2020
Measurement and instruments - Lab Report Example on-chip Hall voltage generator for magnetic sensing, a Schmitt activate to offer switching hysteresis for noise denial, a comparator that amplifies the Hall voltage, and output open collector. An internal regulator is used to offer temperature remunerated supply of voltage for internal circuits and enables a large operating supply choice, When current flows through a piece of metal, the voltage can be measured perpendicular to the flow of current and the voltage should equal zero under no influence of a magnetic field (PopovicÃ , 74). When a magnet field is introduced perpendicular to the flow of current a voltage is induced. If you reverse the polarity of the magnet the polarity of the induced voltage will reverse. The operation is ignited when the device is placed in a magnetic field. When the material is placed in a magnetic field, the flux lines of the magnet and exerts a force on the material which is a semiconductor. This leads to deflection of electrons and charges. Movement of charge carries is due to magnetic force that they experience (PopovicÃ , 204). When current flows through a piece of metal, the voltage can be measured perpendicular to the flow of current and the voltage should equal zero under no influence of a magnetic field. When a magnet field is introduced perpendicular to the flow of current a voltage is induced. If you reverse the polarity of the magnet the polarity of the induced voltage will reverse. There are distinctive features that the instrument has. The features include low current consumption, 3.5V to 24V DC operation voltage, open-Collector pre-driver, wide operating voltage range, temperature compensation, 50mA maximum sinking output current and reverse polarity protection. This is the Hall Effect named after Edwin Hall who discovered this in 1879. The principle which was used was the basic physical principle underlying the Hall Effect being Lorentz force. To generate a potential difference across the device the magnetic flux
Thursday, January 30, 2020
Corrupt Societies Essay In todays society I find that a lot of people have become materialistic. Its a new coach purse, the brand new cell phone from Verizon or a plasma screen TV that is the hype and everyone wants. Either way a person is to look at it, society is based on who has what. There is an emphasis on a persons status in their society and it is very important. I always hear my boss saying its all about the Benjamins! and hes right. Not a day goes by that a person doesnt think about what they want to buy next. Does this make us bad people? Have we all succumbed to an unconscious norm that is all materialistic? What is it to be materialistic? The Webster definition is that a person is concerned with material wealth and possessions at the expense of spiritual or intellectual values. I see it as a person that wants something so much that they would stop at nothing to have it whether it is by means of purchasing, stealing or cheating someone else out of it. Its about judging a book by its cover and not looking at the big picture of life and the world around us. When my mom was younger, things that were sought after were high diplomas and bachelors degree. Now as I grow up its a masters degree and the BMW that I may drive that gives me a status in society. There are so many times when things are taken for granted and some people find nothing wrong with this. How can a person go on in life only wondering about if they can have that brand new car or cell phone? Do the things we have define who we are as a person? I feel that every society is corrupt in its own way. Its the people, the government, our morals, values and our adaptive way of life. This is not just in fantasy books but in our real world as well. When I see how things have changed from when I was little I wonder how it all could have happened. I remember the first computer I ever got in my life and when I compare it to my laptop, its almost one eighth of what my whole computer used to be. But its not just the technology that has changed. Our perception of the world, the role we play in it and how that role has changed. Attitudes have changed and there is a difference between how people relate to each other.
Wednesday, January 22, 2020
Sir Gawain and the Green Knight Analysis Sir Gawain and the Green Knight was written by an unknown author, a contemporary of Geoffrey Chaucer, between 1375 and 1400. This story tells us about the adventures of King Arthur's most noble, honest, and courageous knight in Camelot, Sir Gawain. The main action of the story focuses on a challenge given to Sir Gawain by the Green Knight. The knight challenges Gawain to the Christmas game where Gawain hits him with an axe now, and twelve months and a day later, the knight will return the favor at the Green Chapel. This section of the story deals with the second meeting of Sir Gawain and the Green Knight, and now it's the Green Knight's turn to return the favor. Gawain has traveled long and far to find the knight and uphold his end of the challenge and meet his fate. The Knight is very impressed by Gawain because a lesser man would have not kept his end of the bargain. All of this has led to the climax of the story with Gawain facing the knight, preparing to take the return blow from him and end the challenge. The knight raises the ax to hit Gawain, but Gawain flinches before it hits him. The knight calls Gawain a coward. This infuriates Gawain, and he swears that he will take the blow standing and not flinch again. He states, "But go on, man, in God's name, and get to the point! Deliver me my destiny, and do it out of hand, for I shall stand to the stroke and stir not an inch till your ax has hit home--on my honor, I swear it!" (Norton, 249). Gawain reacts this way because he wants to show honor and live up to his promise made earlier. Also, he feels embarrassment and anger. The knight then acts as if he is going to use the ax again, wanting to see if Gawain will flinch first. But Gawain doesn't flinch at all and stands there, "still as a stone, or else a stout stump" (Norton, 249). The knight mocks him, saying that his nerve is back, and now he must strike because the timing is right. He then builds up the mood, and to create suspense, tells Gawain, "Keep your neck-bone clear, if this cut allows!" (Norton, 249). This further infuriates Gawain, and he tells the knight that he is making too much of a scene.
Tuesday, January 14, 2020
NATURE AND HUMAN Nature and human have always interacted throughout history, and the interaction of the two forces has evolved into a series of demands that people have put on nature to survive and develop. By contrast a minority of people have questioned the state of things and tried to figure out how humanity and nature can interact and develop together, and through their questioning they have come to define their idea as ecological cosmology. To begin with it is important to always start from the word itself, as each and every word has a meaning firstly by itself, and then it can acquire more depth through its use in a given context.Ecological cosmology comes from the Greek Ã¢â¬Ëoikos' and Ã¢â¬Ëlogos' , these two words define respectively a Ã¢â¬Ëdwelling place' and a Ã¢â¬Ëdiscourse' or Ã¢â¬Ëintelligible manifestation'. Ecological is something that deals with the environment in which one is, and on what can be said of that environment. Cosmology is instead related to Ã¢â ¬Ëkosmos' or order and its intelligible manifestation, thus it can be said that there is an intelligible order or a logic to how things happen.Ecological cosmology can be seen as the order in which things happen in a given environment, and many versions of it exist, as many people with different backgrounds thought of defining the order of things depending on how themselves and their environment are shaped or are going to be shaped. Ã¢â¬Å"The mythological process deals not only with natural objects, but with the creative potencies whose original product is consciousness itself. So it is here that our expl anation breaks through into objectivity and becomes wholly objective (Shelling, 207). Ecological cosmology has been seen as a mythological force, of creative and positive nature, which comes to define elements of nature, and the perceptiveness of them that people come to have. Talking about nature and ecological cosmology becomes as a result part of a discourse that does not limi t itself on discussing how a myth can come to be seen in nature, but also on the fact that a myth becomes an object that people can see in nature and attribute a representation to it Ã¢â¬â that can be viewed on how people see and define elements and objects within nature and how these objects happen to effect the relationship of mankind and nature. It is worth noting that no moral cause ever got very far that could not speak to religious conviction, drawing on the deeper sensibilities that guide public opinion even in our more secular era (Scully, pp. 12-13). Ã¢â¬ Throughout the evolution of mankind, people have gone through different phases of ecological cosmology and at one point or another Ã¢â¬â ecological cosmology happened to be tied in with Christian principles to be viewed as something more approachable as a way of being within nature, rather than the sole use of nature.For instance at one moment or the other nature has been perceived as an element of God's creations , in which people were to live abiding the rule of God, and using nature to further man's position on earth. It is interesting to see in fact how the evolution of Christianity has put people first as representation of God's will on Earth and then after only at a second time, people have seen nature as something to needy of care.Interestingly enough nature has been for most part of humanity's history the giver in a relationship Ã¢â¬â care towards it instead has always come at a second time and out of the feeling of guilt rather than respect in a balanced environment, as solely humanity and people have seen balance in the goods generated by nature.It is also worth noting that in times when nature got attention it has been mostly the attention of an intellectual elite, and even in cultural movement such as romanticism Ã¢â¬â attention to nature and its care have solely been regarded as a pastime, like for example when in the late 1800s the British high society started to find inte rest in gardening and even that has been solely related to an elite status.Intellectuals and elites have been able to move society forward within limits, but sadly those limits haven't been altered too much or challenged even within those circles. Results have been many compared to a level of development that mankind has obtained out of the use of the many fruits of mother nature, it is interesting to point out that those phases of interest in nature have been mostly occurring after intense industrial development's periods Ã¢â¬â and because of that they have become the hadow after the light of successes of science and scientific research. Yet those phases have brought onto people the harsh reality and needs that follow advancements as those have a price, and results that not only affect increasing social conditions, but also that affect people with challenging bad health conditions and a state of realization to people that at any of hose junctions realize the damages in nature's ecosystems.Furthermore it is interesting to realize how Renaissance, Enlightenment, Romanticism, Impressionism and Expressionism have challenged the status quo on a cultural level. All those cultural, artistic and Ã¢â¬Ëelitist' movements have allowed men to have a reality check with its contemporary community, and given they all developed a specific code in any given location in which they took place.They have started a constant discourse that has led people to one's realization nature and humanity need to re-balance one another Ã¢â¬â and the balance to be found is not as easy to come by as it is expected even after constant technical development in both industrial and artisanal methods, the situation people are put in front of holds many challenges, and the biggest one of them involves a change in understanding and dealing with nature all together. erably failed. But he was a humble seeker of Truth. He was a man with exceptional sincerity, honesty and truthfulness. For him, un derstanding meant action. Once any principle appealed to him, he immediately began to translate that in practice. He did not flinch from taking risks and did not mind confessing mistakes. No opposition, scorn or
Monday, January 6, 2020
). The use of pluripotent cells, allow researchers to conduct drug testing in a wide range of cell types. Thus, improving outcomes for patients with many neurological diseases. The loss of neurons and glial cells cause neurological disorders, such as ParkinsonÃ¢â¬â¢s disease and multiple sclerosis. Current major therapies focus on oral medications, in the case of ParkinsonÃ¢â¬â¢s disease, L-dopa, and dopamine receptor agonists, in addition to deep-brain stimulation in the subthalamic nucleus. Furthermore, the use of a VNS device to prevent seizures is also commonly used for those with epilepsy. These treatments are effective for some symptoms, but are linked to side effects and do not halt the progression of the disease. Ã¢â¬Å"To be clinicallyÃ¢â¬ ¦show more contentÃ¢â¬ ¦Consequently, researchers have found that the use of undifferentiated cells to suppress inflammation as well as remyelinate axons is a viable alternative to or in conjunction with current treatment of those with AlzheimerÃ¢â¬â¢s disease. For patients and their families, the research behind embryonic stem cells offers them the hope of a cure for chronic and debilitating conditions, such as AlzheimerÃ¢â¬â¢s disease, ParkinsonÃ¢â¬â¢s disease, Epilepsy, ALS, HuntingtonÃ¢â¬â¢s Disease, MS and Cerebral Palsy. For scientists, however, it epitomizes the innovative path of discovery. Discovering the causes and subsequent cures for EMBRYONIC STEM CELLS AND NEUROLOGICAL DISEASE 7 human conditions. According to Lindvill et al, Stem cell therapies to restore and preserve function in the brain and spinal cord can be developed (2006). Bioethics of stem cell-based therapy Researchers must overcome many hurdles, including moral and ethical issues before the clinical application of cell therapy in neurological disease patients, are implemented. Therefore, continued research is needed in stem cell research in both basic and preclinical settings. This can be accomplished through education as well as positive research outcomes. Supporting the hope for the continued development of stem cell-based therapies for neurodegenerative diseases. Embryonic stem cells have been derived from a variety ofShow MoreRelatedPluripotent Stem Cell Essay1608 Words Ã |Ã 7 Pageson Ã¢â¬Å"Induction of Pluripotent Stem Cells from Mouse Embryonic and Adult Fibroblast Cultures by Defined FactorsÃ¢â¬ Ã ¬Stem cells are yet undifferentiated cells, with the potential capability to further divide indefinitely, and the ability to give rise to more specialized cell types. Embryonic stem(ES) cells are of especially great importance due to their pluripotency and hence ability to differentiate to cells of all three germ layers. Due to the great replicative powers of these cells, they may be usedRead MoreEssay On Pluripotent Cells For Toxicology742 Words Ã |Ã 3 Pages1.3.1 Pluripotent cells for toxicology (relevant cells relevant species) In 1981, ESCs were firstly developed from isolation of mouse blastocytes (PMID: 7242681), then human ESCs were derived in 1998 (PMID: 9804556). Subsequently, the derivation of human ESC line did not only raise critical ethical, religious, and political controversies, but also had scientific limitation. To circumvent these concerns, suggested the derivation of iPSCs which seemed to be a promising and great alternative thoughRead MoreInduced Pluripotent Stem Cells Essays1185 Words Ã |Ã 5 PagesDescribe:- (i) how induced pluripotent stem cells (iPSCs) are isolated (ii) how iPSCs can be used to study human development (iii) how iPSCs can be used to model human disease and to develop therapies for degenerative disease i) iPSCs are adult stem cells that have been genetically reprogrammed to behave like the pluripotent stem cells found in embryos, i.e. can differentiate into any cell type in the human body. This was first completed successfully in mice in 2006 by Shinya Yamanaka and hisRead MoreInduced Pluripotent Stem Cells Essay1759 Words Ã |Ã 8 Pages Induced Pluripotent Stem Cells: Methods of Production, Characterization and Applications to Medicine StudentÃ¢â¬â¢s Name University Induced Pluripotent Stem Cells: Methods of Production, Characterization and Applications to Medicine Introduction By definition, induced pluripotent stem cells (iPSCs) are somatic cells with preprogrammed features (Kamath et al. 2017). In essence, they are often modified to mimic embryonic stem cells through the expression of ectopic factors linked to geneRead More Stem Cells: What How and Why? Essay1130 Words Ã |Ã 5 Pages Stem Cells: What, How and Why? Stem cells are infinitely valuable when considering their potential applications in the medical profession. While current legislative restrictions have halted the development of new ?stem cell lines? to any agency or company that receives any form of governmental grants, there is no question that the medical profession is standing at the brink of a new era of technological advancements in healthcare and research. Stem cells are valuable due to the fact that theyRead MoreProgress in the Reasearch on Induced Pluripotent Stem Cells 528 Words Ã |Ã 3 Pagesin stem cell research. They reprogrammed mouse skin fibroblasts by introduction of four transcription factors, Oct3/4, Sox2, Klf4 and c-Myc and generated cells almost indistinguishable from ES cells. They named these cells induced pluripotent stem cells (iPSCs) (Takahashi K., et al., 2006). An year later, James A. Thomson et al. replaced Oct4 and oncogenic c-Myc with Lin28 and Nanog decreasing the risk of cancer formation (Yu J., et al., 2007). We need to take into consideration that cell types areRead MoreEssay On 20 Years Of Advancement In Healthcare Science1109 Words Ã |Ã 5 Pagestwenty years there have been numerous important advances throughout healthcare science. These have allowed for improved diagnoses and more effective treatments lowering the prevalence of diseases. The first significant advancement discussed in this essay is The Human Genome Project (HGP), an international collaborative research program whose goal was to sequence and map all of the genes (known as the genome) contained within humans. This project has revolutionised the biomedical field and has alreadyRead MoreEssay about Alternatives to Human-embryo Stem-cell Research1145 Words Ã |Ã 5 PagesHuman-embryo Stem-cell Research Ã Ã Ã This essay counters the media and many scientists claims that there are no viable alternatives to human-embryo stem-cell research (ESCR). Ã The media restate the claim (made repeatedly in NIH documents) that adult stem cells do not have the same potential as embryonic stem cells, which in theory can form any tissue. But studies done with adult stem cells (studies which mirror the ones done with embryonic stem cells) show that adult stem cells do have theRead MoreEssay about Advances in ParkinsonÃ¢â¬â¢s Disease1345 Words Ã |Ã 6 Pagessymptoms of ParkinsonÃ¢â¬â¢s disease have been recorded from years dating all the way back to about 1000 B.C., but the first actual medical diagnosis of the disease was done by James Parkinson in 1817 (Goetz). He published his findings in a book entitled An Essay on the Shaking Palsy. Shaking palsy was the name of the ParkinsonÃ¢â¬â¢s disease before another scientist named the disease after Parkinson because of his findings. Later a man named Jean-Martin Charcot made an important finding in which he was able toRead MoreThe Function Of The Hair Follicle Stem Cells1239 Words Ã |Ã 5 Pagesintrinsic or extrinsic expression of specific proteins. Hair follicle stem cells are responsible for not only its self-renewal but also in the production of rapidly multiplying cells. The stem cells of the hair follicle are for temporary increase in cells, and are created by the differentiation of hair follicle stem cells. The focus of this essay will be to analyze a specific protein within the hair follicle stem cell BMP, bone morphogenetic proteins. Through intrinsic expression, Bone morphogenetic