In recent years, cognitive neuroscientists have began to explore the process of how sensory information gains access to awareness. To further probe this process, event-related functional magnetic resonance imaging was used while testing subjects with a paradigm known as the “attentional blink.” In this paradigm, visually presented information sporadically fails to reach awareness. It was found that the magnitude and time course of activation within the anterior cingulate , medial prefrontal cortex , and frontopolar cortex predicted whether or not information (...) was consciously perceived during the critical period for the attentional blink. These results are discussed in light of a neural framework for conscious processing. (shrink)
Sensation elicited by a skin stimulus was subjectively reported to feel stronger when followed by a stimulus to somatosensory cerebral cortex , even when C was delayed by up to 400 ms or more. This expands the potentiality for retroactive effects beyond that previously known as backward masking. It also demonstrates that the content of a sensory experience can be altered by another cerebral input introduced after the sensory signal arrives at the cortex. The long effective S-C intervals support the (...) thesis that a duration of cortical activity of up to 0.5 s is required before awareness of a sensory stimulus is developed. (shrink)
The Jewish religious tradition summons its adherents to save life. For religious Jews preservation of life is the ultimate religious commandment. At the same time Jewish law recognizes that the agony of a moribund person may not be stretched. When the time to die has come this has to be respected. The process of dying should not needlessly be prolonged. We discuss the position of two prominent Orthodox Jewish authorities – the late Rabbi Moshe Feinstein and Rabbi J David (...) Bleich – towards the role of life-sustaining treatment in end-of-life care. From the review, the characteristic halachic and heterogeneous character of Jewish ethical reasoning appears. The specificity of Jewish dealing with ethical dilemmas in health care indicates the importance for contemporary healthcare professionals of providing care which is sensitive to a patient’s culture and worldview. (shrink)
In this essay, David Waddington and Noah Weeth Feinstein explore how Dewey's conception of science can help us rethink the way science is done in schools. The authors begin by contrasting a view of science that is implicitly accepted by many scientists and science educators — science as a search for truth — with Dewey's instrumentalist, technological, and nonrealist conception of science. After demonstrating that the search-for-truth conception is closely linked to some ongoing difficulties with science curricula that students (...) find particularly alienating, they then analyze some of the educational opportunities that Dewey's vision opens up. Ultimately, Waddington and Weeth Feinstein argue that Dewey offers a humble and humanistic vision of science and science education practice that captures the power of science by connecting it clearly to everyday human activities and challenges. (shrink)
This paper seeks to reinterpret the life and work of J. B. S. Haldane by focusing on an illuminating but largely ignored essay he published in 1927, "The Last Judgment" -- the sequel to his better known work, "Daedalus" (1924). This astonishing essay expresses a vision of the human future over the next 40,000,000 years, one that revises and updates Wellsian futurism with the long range implications of the "new biology" for human destiny. That vision served as a kind of (...) lifelong credo, one that infused and informed his diverse scientific work, political activities, and popular writing, and that gave unity and coherence to his remarkable career. (shrink)
Bob B. He: Two-dimensional X-ray diffraction Content Type Journal Article Category Book Review Pages 1-2 DOI 10.1007/s10698-011-9135-8 Authors George B. Kauffman, Department of Chemistry, California State University, Fresno, Fresno, CA 93740-8034, USA Journal Foundations of Chemistry Online ISSN 1572-8463 Print ISSN 1386-4238.
Illustrations: 13 B/w & 1 Colour Illustrations Description: The frontiers of Traditional Knowledge and Science have long attracted the minds of scientists, theologians, intellectuals and students, who have been arguing both their similarities and dissimilarities, apparent contradictions, and the possibility of an ultimate harmony between the two. In ancient and medieval India - as in much of the Non-Western world - there was only one word for tradition and science, namely, vidya. Vidya encompassed what in the modern historically-sensitive inquiries is (...) called 'knowledge-systems.' However, in the modern West, placing Science and Tradition side-by-side has become something of an anathema, for many in the post-Enlightenment era regard Tradition to be a leftover from the Dark Ages. Science, in contrast, with its systematic approach to studying and understanding of all there is, has been considered to be unassailable. But even this impenetrable divide may be showing signs of rupture in the twenty-first century : there is now growing evidence of a line of continuity and creative engagement in a 'third space' between Science and Traditional Knowledge. Individuals and learned organizations are making enormous contributions in this interactive exploration. The Sir John Templeton Foundation, based in Philadelphia, USA, is one such international organization. Professor B.V. Subbarayappa is one such eminent scholar who has relentlessly pursued, and in his quiet way stimulated, the fusion of disparate minds in this area. He is hailed as a pioneer in the History and Philosophy of Science movement in India. His contributions in this field are without match and have earned him a name among scientists, science historians, philosophers and intellectuals all over the world. His monumental work and his sheer humanity have inspired the Editors of this volume to find a way to honour him. Scholars of various persuasions from around the world have contributed exploratory, specialist and dialogic essays toward this conversation of Science and Tradition. A biographical sketch with a comprehensive Bibliography (first-ever) of Prof Subbarayappa is also featured in the Introductory essay. Professor--D.P. Chattopadhyaya and J.N. Mohanty have offered prefatory comments of their own. Given the extensive range of topics discussed, both specialists and lay readers will doubtless gain a deeper understanding of the relationship between Science and Tradition in a cross-cultural context, and hopefully be inspired to develop respect for knowledge across these two frontiers. (shrink)
The paper illustrates how organic chemists dramatically altered their practices in the middle part of the twentieth century through the adoption of analytical instrumentation - such as ultraviolet and infrared absorption spectroscopy and nuclear magnetic resonance spectroscopy - through which the difficult process of structure determination for small molecules became routine. Changes in practice were manifested in two ways: in the use of these instruments in the development of 'rule-based' theories; and in an increased focus on synthesis, at the expense (...) of chemical analysis. These rule-based theories took the form of generalizations relating structure to chemical and physical properties, as measured by instrumentation. This 'Instrumental Revolution' in organic chemistry was two-fold: encompassing an embrace of new tools that provided unprecedented access to structures, and a new way of thinking about molecules and their reactivity in terms of shape and structure. These practices suggest the possibility of a change in the ontological status of chemical structures, brought about by the regular use of instruments. The career of Robert Burns Woodward (1917-1979) provides the central historical examples for the paper. Woodward was an organic chemist at Harvard from 1937 until the time of his death. In 1965, he won the Nobel Prize in Chemistry. (shrink)
