Skip to main content

Home/ gcanth103dspring2013/ Group items tagged experiment

Rss Feed Group items tagged

J Scott Hill

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

  • 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...
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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]
  •  
    Good highlights of Kuhn's book and the notion of Paradigm shift in science.
andrew carlino

What are the major accusations or questions of debate concerning "Darkness in El Dorado?" - 70 views

The major issue to me in this article was the fact that many of Neel and Chagnon's findings were very loosely based on fact when they were further explored. Other anthropologists had studied many ...

questions

Parker Delmolino

Darkness in El Dorado - 0 views

  • Hence Neel’s terrible experiments on the Yanomami, in a kind of grim downgrade of the Malthusian ethics of “Survivor.” He wanted to disprove the vulnerability of small, isolated groups to epidemics, seeking to show that though a disease such as measles might wreak awful havoc, his alpha-dominated males would be better adapted to evolve genetic immunity to these “contact” diseases. Many might die but the survivors would be of ever more superior stock. In their letter to the head of the Anthropological Association Turner and his colleague Sponsel write carefully that “Tierney’s well-documented account, in its entirety, strongly supports the conclusion that the epidemic was in all probability deliberately caused as an experiment designed to produce scientific support for Neel’s eugenic theory.”
Parker Delmolino

Statement read by Professor William Irons - 0 views

  • We began this study assuming that, in Turner and Sponsel's words, we would be investigating 'an impending scandal' concerning flagrant wrongdoing by two celebrated scholars. Almost immediately, however, we discovered published evidence that the most serious allegations were false. Neel was not a eugenicist, did not cause the 1968 measles epidemic, and did not run nefarious experiments on unsuspecting human subjects. What he did was what any responsible physician would have done: vaccinate as many people as he could in a circle around the mission where the epidemic began. That these facts were available in the medical literature 30 years ago (Neel et al. 1970) made us wonder why Tierney had so badly distorted the facts. Perhaps it was because he had become an 'advocate,' to use his own words.
  • The first has to do with Tierney's use of an article by G. S. Wilson ("Measles as a Universal Disease," Amer. J of Diseases of Children 53: 219-23, 1962) to back up his claim that the Edmonston B measles vaccine is contraindicated. This is crucial to his broader argument that James Neel intentionally started a measles epidemic among the Yanomamo in 1968 by using this vaccine, and that he did this in order to observe its effect and test a eugenic theory.
  • Patrick Tierney's recent book Darkness in El Dorado makes very serious accusations of wrongdoing against Napoleon Chagnon, James Neel, and other scientists. Neel is accused of starting an epidemic among the Yanomamo in 1968 in order to observe its course as part of a secret experiment to test a eugenic theory. Chagnon is accused of aiding him, of fudging data, of staging events for his ethnographic films among other things, somehow causing the warfare that characterizes the Yanomamo.
J Scott Hill

The Turner-Sponsel Memo - 2 views

  • The author, Patrick Tierney, presented evidence that suggested that the epidemic was deliberately caused as an experiment, although the purpose of the experiment was left unclear.
Parker Delmolino

Imminent Anthropological Scandal - 0 views

  • The focus of the scandal is the long-term project for study of the Yanomami of Venezuela organized by James Neel, the human geneticist, in which Napoleon Chagnon, Timothy Asch, and numerous other anthropologists took part. The French anthropologist Jacques Lizot, who also works with the Yanomami but is not part of Neel- Chagnon project, also figures in a different scandalous capacity.
  • One of Tierney's more startling revelations is that the whole Yanomami project was an outgrowth and continuation of the Atomic Energy Comissions secret program of experiments on human subjects James Neel, the originator and director of the project, was part of the medical and genetic research team attached to the Atomic Energy Commission since the days of the Manhattan Project.
  • Tierney presents convincing evidence that Neel and Chagnon, on their trip to the Yanomami in 1968, greatly exacerbated, and probably started, the epidemic of measles that killed "hundreds, perhaps thousands" (Tierney's language-the exact figure will never be known) of Yanomami. The epidemic appears to have been caused, or at least worsened and more widely spread, by a campaign of vaccination carried out by the research team, which used a virulent vaccine (Edmonson B) that had been counter-indicated by medical experts for use on isolated populations with no prior exposure to measles exactly the Yanomami situation). Even among populations with prior contact and consequent partial genetic immunity to measles, the vaccine was supposed to be used only with supportive injections of gamma globulin.
  •  
    "Ya"
juliashackleton

My List: A Collection on "darkness" | Diigo - 1 views

  • Anthro#3, who is interviewed at length, collaborated with the Atomic Energy Commission to introduce smallpox and other diseases so the long-terms effects radiation-like symptoms could be studied.
  •  
    Reaction to the experiments conducted by Neel and Chagnon
1 - 8 of 8
Showing 20 items per page