Skip to main content

Home/ gcanth103aspring2013/ Group items tagged science

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
12More

The Structure of Scientific Revolutions - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...ture_of_Scientific_Revolutions Kuhn science philosophy paradigm revolutions
shared by J Scott Hill on 29 Jan 13 - Cached
  • The Structure of Scientific Revolutions by Thomas S. Kuhn, is an analysis of the history of science, published in 1962 by the University of Chicago Press. Its publication was a landmark event in the history, philosophy, and sociology of scientific knowledge and it triggered an ongoing worldwide assessment and reaction in—and beyond—those scholarly communities. In this work, Kuhn challenged the then prevailing view of progress in "normal science". Scientific progress had been seen primarily as "development-by-accumulation" of accepted facts and theories. Kuhn argued for an episodic model in which periods of such conceptual continuity in normal science were interrupted by periods of revolutionary science.
  • What is arguably the most famous example of a revolution in scientific thought is the Copernican Revolution. In Ptolemy's school of thought, cycles and epicycles (with some additional concepts) were used for modeling the movements of the planets in a cosmos that had a stationary Earth at its center. As accuracy of celestial observations increased, complexity of the Ptolemaic cyclical and epicyclical mechanisms had to increase to maintain the calculated planetary positions close to the observed positions. Copernicus proposed a cosmology in which the Sun was at the center and the Earth was one of the planets revolving around it.
  • Copernicus' contemporaries rejected his cosmology, and Kuhn asserts that they were quite right to do so: Copernicus' cosmology lacked credibility.
  • ...8 more annotations...
  • Those scientists who possess an exceptional ability to recognize a theory's potential will be the first whose preference is likely to shift in favour of the challenging paradigm. There typically follows a period in which there are adherents of both paradigms. In time, if the challenging paradigm is solidified and unified, it will replace the old paradigm, and a paradigm shift will have occurred.
  • In any community of scientists, Kuhn states, there are some individuals who are bolder than most. These scientists, judging that a crisis exists, embark on what Thomas Kuhn calls revolutionary science, exploring alternatives to long-held, obvious-seeming assumptions. Occasionally this generates a rival to the established framework of thought. The new candidate paradigm will appear to be accompanied by numerous anomalies, partly because it is still so new and incomplete. The majority of the scientific community will oppose any conceptual change, and, Kuhn emphasizes, so they should. To fulfill its potential, a scientific community needs to contain both individuals who are bold and individuals who are conservative.
  • One of the aims of science is to find models that will account for as many observations as possible within a coherent framework. Together, Galileo's rethinking of the nature of motion and Keplerian cosmology represented a coherent framework that was capable of rivaling the Aristotelian/Ptolemaic framework.
  • Chronologically, Kuhn distinguishes between three phases. The first phase, which exists only once, is the pre-paradigm phase, in which there is no consensus on any particular theory, though the research being carried out can be considered scientific in nature. This phase is characterized by several incompatible and incomplete theories.
  • If the actors in the pre-paradigm community eventually gravitate to one of these conceptual frameworks and ultimately to a widespread consensus on the appropriate choice of methods, terminology and on the kinds of experiment that are likely to contribute to increased insights, then the second phase, normal science, begins, in which puzzles are solved within the context of the dominant paradigm. As long as there is consensus within the discipline, normal science continues.
  • Over time, progress in normal science may reveal anomalies, facts that are difficult to explain within the context of the existing paradigm. While usually these anomalies are resolved, in some cases they may accumulate to the point where normal science becomes difficult and where weaknesses in the old paradigm are revealed. Kuhn refers to this as a crisis. Crises are often resolved within the context of normal science. However, after significant efforts of normal science within a paradigm fail, science may enter the third phase, that of revolutionary science, in which the underlying assumptions of the field are reexamined and a new paradigm is established. After the new paradigm's dominance is established, scientists return to normal science, solving puzzles within the new paradigm.
  • SSR is viewed by postmodern and post-structuralist thinkers as having called into question the enterprise of science by demonstrating that scientific knowledge is dependent on the culture and historical circumstances of groups of scientists rather than on their adherence to a specific, definable method.
  • SSR has also been embraced by creationists who see creationism as an incommensurate worldview in contrast to naturalism while holding science as a valuable tool.[7]
  • J Scott Hill on 29 Jan 13
     
    Good highlights of Kuhn's book and the notion of Paradigm shift in science.
7More

Michael Shermer: What Is Skepticism, Anyway? - 2 views

www.huffingtonpost.com/...epticism-anyway_b_2581917.html science skepticism ted
shared by J Scott Hill on 02 Feb 13 - No Cached
  • Consider global warming: Are you a global warming skeptic? Or are you skeptical of the global warming skeptics? In this case, I used to be a global warming skeptic, but now I'm skeptical of the global warming skeptics, which makes me a global warming believer based on the facts as I understand them at the moment. The "at the moment" part is what makes conclusions in science and skepticism provisional.
  • Thus, science and skepticism are synonymous, and in both cases it's okay to change your mind if the evidence changes. It all comes down to this question: What are the facts in support or against a particular claim?
  • Being a skeptic just means being rational and empirical: thinking and seeing before believing.
  • ...3 more annotations...
  • Skepticism is not "seek and ye shall find," but "seek and keep an open mind."
  • Skepticism is the rigorous application of science and reason to test the validity of any and all claims.
  • Typically pseudoscientists will make statements that are unverified, or verified by a source within their own belief circle.
  • J Scott Hill on 02 Feb 13
     
    This Article highlights the connection between skepticism, science, and belief.  This dovetails with our discussion of paradigm shifts and how scientific results gain credibility through the peer review process where the data and methods are scrutinized along with the truth claims by qualified peers.
25More

Kenan Malik's review of 'Darkness in El Dorado' by Patrick Tierney - 0 views

www.kenanmalik.com/...tierney_darkness.html research anthropology paradigm
shared by Mia Gooding on 05 Feb 13 - No Cached
  • In the twentieth century, the consequences of racial science led anthropologists to reject naturalistic explanations and to see human behaviour as dictated largely by culture, not biology
  • all too often anthropologists saw what they wanted to
  • The most prominent of the new generation of sociobiological anthropologists was the American Napoleon Chagnon
  • ...21 more annotations...
  • Chagnon presented the Yanomamo as a fierce, primitive tribe whose mores opened the window onto our own past ('our contemporary ancestors' as Chagnon has described them).
  • linked Yanomami violence to genetic success
  • Chagnon revealed that men who had killed had more than twice as many wives and three times as many offspring as non-killers. The idea that murderous violence enhanced Yanomami men's reproductive success was manna for sociobiologists.
  • Chagnon's paper is one of the most widely cited scientific studies of all time - and one of the most fiercely criticised.
  • Tierney presents a convincing case that Chagnon has consistently overestimated Yanomami violence, and that he himself was responsible for fomenting much of it
  • Patrick Tierney's Darkness in El Dorado
  • Tierney accuses Chagnon, among other things, of scientific fraud, sexual abuse, political corruption and, most sensationally, genocide
  • Chagnon, and his mentor the geneticist James Neel, may have deliberately infected Yanomami with measles, beginning an epidemic that wiped out hundreds, perhaps even thousands, of people, as part of a grotesque experiment to test the impact of natural selection on primitive groups.
  • Tierney's book, they claim, is 'a case study of the dangers in science of the uncontrolled ego'.
  • humans are an inherently violent and aggressive species. Chagnon himself has said that violence 'may be the principal driving force behind the evolution of culture'
  • Chagnon had changed the political balance between different Yanomami groups by favouring some over others, and by selectively providing steel goods and weapons to certain groups. Chagnon was apparently given to bursting into villages decorated in war paint and brandishing a shotgun. Yanomami men soon realized that their own displays of aggression would be rewarded with machetes and other highly prized tools.
  • Chagnon was an active participant in the wars. Yanomami men were fighting for access not to women but to Chagnon himself.
  • In 1968 a measles epidemic decimated the Yanomami population. At exactly the same time, Chagnon had embarked on an expedition to the Amazon under the leadership of the geneticist James Neel. During that expedition the two men initiated a programme of inoculation against measles to protect the Yanomamo. According to Tierney, however, it was that very programme of inoculation that caused the epidemic in the first place.
  • Tierney quotes several people who hint darkly that an epidemic might have been exactly what Neel wanted. Moreover, once the epidemic was under way, Neel and Chagnon 'refused to provide any medical assistance to the sick and dying Yanomami', insisting that 'they were there only to observe and record the epidemic, and that they must stick strictly to their roles as scientists, not provide medical help.'
  • Neel rejected the medical orthodoxy that the Yanomami were genetically susceptible to measles, believing that the Yanomamis' survival-of-the-fittest lifestyle had given them immune systems more robust than those of us in pampered modern societies have. The epidemic would prove Neel's theories.
  • Tierney produces very little direct evidence to back up his monstrous claims.
  • The consensus is that the measles epidemic began before Chagnon and Neel arrived in Venezuela, and that they initiated their inoculation programme precisely because they were aware of the earlier outbreak
  • used Edmonston B
  • after receiving advice from the Venezuelan government
  • In many ways Darkness in El Dorado raises more questions about Tierney's motives, and those of Chagnon's other critics, than it does about Chagnon's own work.
  • What Tierney is questioning is the very possibility of a scientific anthropology. Anthropologists cannot simply be observers, as traditional scientific objectivity requires, but must actively take sides in any political struggle involving the peoples they are studying. And in such a struggle the norms of scientific objectivity become subordinate to the political aims
  • Mia Gooding on 05 Feb 13
     
    I find this article interesting because it not only describes Tierney's point of view of Chagnon in 'Darkness in El Dorado' but it questions Tierney's own credibility of accusing Chagnon for such outrageous crimes.  It describes his reasoning behind all his claims but also points out the last of factual evidence he presents with them.
4More

JSTOR: Current Anthropology, Vol. 43, No. 1 (February 2002), pp. 149-152 - 0 views

www.jstor.org/...338288 anthropology paradigm disease research
shared by Erin Meachem on 04 Feb 13 - No Cached
  • Tierney served our profession with a sorely needed wakeup call unprecedented in its effectiveness, whatever the negative consequences that inevitably accompany controversies and scandals and to whatever degree his numerous and diverse allegations prove true.
  • Tierney exposed the ugliest affair in the entire history of anthropology. It cannot be summarily dismissed by a vocal minority as simply a matter of personal animosities, turf war, postmodernist critique of science or scientism, objectivist versus activist, differing interpretations of Yanomami aggression, sensationalist or tabloid journalism, etc. As Susan Lindee recognizes and contrary to Raymond Hames, not all of the fundamental claims made by Tierney have been discussed, let alone refuted.
  • the Pandoras box opened by Tierney should be examined and debated within the framework of the ethics and politics of knowledge production in the West, and that includes professional, ethical, and moral responsibility toward the communities who host research. The three basic questions I raised at the open forum on this controversy at the last AAA convention remain: What have the Yanomami contributed to us? What have we contributed to the Yanomami, for better and for worse? How are professional ethics and human rights involved?
  • Erin Meachem on 04 Feb 13
     
    This reflection is written by one of the men who sent the email to the president and president-elect of the AAA.
7More

Napoleon Chagnon Elected to the National Academy of Sciences - 0 views

anthroniche.com/...0001.htm Chagnon darkness Neel noblesavages measles
shared by James Granderson on 06 Feb 13 - No Cached
  • His election not only vindicates Chagnon of unfounded accusations that have undermined his reputation and career, but is an achievement that reflects well upon our discipline.
  • highest honors bestowed upon a US scientist.
  • complex nature of humans as alternately cruel and kind, both warlike and peaceable
  • ...4 more annotations...
  • Inspired by Patrick Tierny’s Darkness in El Dorado, which accused Chagnon and deceased geneticist James Neel of intentionally infecting Yanomamö Indians with measles, the AAA set up the “El Dorado Task Force” (TF) to examine Chagnon and Neel’s ethical conduct
  • relegate this shameful event into history and restore Chagnon’s reputation as one of the great anthropologists of the 20th century
  • is developing a large, institutionally accessible database containing genealogical and demographic data, population and conflict histories, photographs, maps and other unpublished data on large, remote villages in the Siapa Basin
  • Noble Savages: My Life among Two Dangerous Tribes, the Yanomamö and the Anthropologists
1More

Perspectives on Tierney's Darkness in El Dorado - 0 views

www.jstor.org/...320007 perspectives darkness anthropology Yanomami
shared by markyearick on 06 Feb 13 - No Cached
J Scott Hill liked it
  • markyearick on 06 Feb 13
     
    "Even before its publication, Darkness in El Dorado became a Janusfaced text that in calling attention to methodological and ethical shortcomings of scientific research in the Amazon also brought attention to faults in its own production." "Tierneys harrowing account forces us to ask how personal and professional ethical questions are defined and connected. His merit is to have brought together a vast amount of information about Western anthropological and medical practices carried out among the Yanomami and to have situated these practices within the network of institutional connections that made them possible and the ideologies of science and history that have rendered them so popular." "While Tierneys focus is on individuals, his book locates them in two relevant contexts: the cold war and the Vietnam War, during which currents of evolutionary genetics, sociobiology, and cultural anthropology claiming that aggression plays a positive role in human evolution found broad support, and the Venezuelan petrostate culture of clientelism, which fostered a network of corrupt politicians and businessmen with interests in the Yanomami and their territory for reasons of profit and power."
1More

ScienceDirect.com - Cognitive Psychology - Does Language Shape Thought?: Mandarin and E... - 2 views

www.sciencedirect.com/...S0010028501907480 thought english language
shared by Stephanie Hegarty on 18 Feb 13 - No Cached
  • Stephanie Hegarty on 18 Feb 13
     
    "Does the language you speak affect how you think about the world? This question is taken up in three experiments. English and Mandarin talk about time differently-English predominantly talks about time as if it were horizontal, while Mandarin also commonly describes time as vertical. This difference between the two languages is reflected in the way their speakers think about time. In one study, Mandarin speakers tended to think about time vertically even when they were thinking for English (Mandarin speakers were faster to confirm that March comes earlier than April if they had just seen a vertical array of objects than if they had just seen a horizontal array, and the reverse was true for English speakers)."
1More

Welcome - 0 views

raceandgenomics.ssrc.org race genetics anthropology science racism ssrc
shared by J Scott Hill on 22 Feb 13 - Cached
  • J Scott Hill on 22 Feb 13
     
    To understand the genetic basis of human genetics and the limitations of race concepts describing that variation...I encourage you to read some of the essays attached to this page.  If you find something of interest, highlight it and share it to our class page.
5More

'Ten Commandments' of race and genetics issued - science-in-society - 17 July 2008 - Ne... - 0 views

www.newscientist.com/...-race-and-genetics-issued.html race genetics
shared by J Scott Hill on 22 Feb 13 - No Cached
  • Even with the human genome in hand, geneticists are split about how to deal with issues of race, genetics and medicine.
  • Some favor using genetic markers to sort humans into groups based on ancestral origin - groups that may show meaningful health differences. Others argue that genetic variations across the human species are too gradual to support such divisions and that any categorisation based on genetic differences is arbitrary.
  • 1. All races are created equal No genetic data has ever shown that one group of people is inherently superior to another. Equality is a moral value central to the idea of human rights; discrimination against any group should never be tolerated.
  • ...1 more annotation...
  • 2. An Argentinian and an Australian are more likely to have differences in their DNA than two Argentinians Groups of human beings have moved around throughout history. Those that share the same culture, language or location tend to have different genetic variations than other groups. This is becoming less true, though, as populations mix.
  • J Scott Hill on 22 Feb 13
     
    This is a short list of good points to be made about Genetics and the concept of race.  I find that it is often difficult for students to wrap their heads around genetic variation and race.  I will try my best to explain it in the coming week.
1 - 10 of 10
Showing 20▼ items per page