scholarly journals The fall and rise of consciousness science

2018 ◽  
Author(s):  
Anil Seth
Keyword(s):  
Twentieth Century ◽  
Empirical Study ◽  
Neurological Disorders ◽  
Neural Mechanisms ◽  
Central Feature ◽  
Hard Problem ◽  
Physical Processes ◽  
Wide Range ◽  
Third Person ◽  
The Universe

At the birth of psychology as a science, consciousness was its central problem. But throughout the twentieth century, ideological and methodological concerns pushed the explicit empirical study of consciousness to the sidelines. Since the 1990s, studying consciousness has regained a legitimacy and impetus befitting its status as the central feature of our mental lives. Nowadays consciousness science encompasses a rich interdisciplinary mixture drawing together philosophical, theoretical, computational, experimental, and clinical perspectives. While solving the metaphysically ‘hard’ problem of why consciousness is part of the universe may seem as intractable as ever, scientists have learned a great deal about the neural mechanisms underlying conscious states. Further progress will depend on specifying closer explanatory mappings between (first person subjective) phenomenological descriptions and (third person objective) descriptions of biological and physical processes. Such progress will help reframe our understanding of our place in nature, and may also accelerate clinical approaches to a wide range of psychiatric and neurological disorders.

scholarly journals Consciousness: The last 50 years (and the next)

2018 ◽  
Vol 2 ◽  
pp. 239821281881601 ◽  
Author(s):  
Anil K. Seth
Keyword(s):  
Neurological Disorders ◽  
Neural Mechanisms ◽  
States Of Consciousness ◽  
Neuronal Mechanisms ◽  
Brain Sciences ◽  
Wide Range ◽  
Third Person ◽  
Mind And Brain ◽  
The Mind ◽  
Global States

The mind and brain sciences began with consciousness as a central concern. But for much of the 20th century, ideological and methodological concerns relegated its empirical study to the margins. Since the 1990s, studying consciousness has regained a legitimacy and momentum befitting its status as the primary feature of our mental lives. Nowadays, consciousness science encompasses a rich interdisciplinary mixture drawing together philosophical, theoretical, computational, experimental, and clinical perspectives, with neuroscience its central discipline. Researchers have learned a great deal about the neural mechanisms underlying global states of consciousness, distinctions between conscious and unconscious perception, and self-consciousness. Further progress will depend on specifying closer explanatory mappings between (first-person subjective) phenomenological descriptions and (third-person objective) descriptions of (embodied and embedded) neuronal mechanisms. Such progress will help reframe our understanding of our place in nature and accelerate clinical approaches to a wide range of psychiatric and neurological disorders.

scholarly journals VINCI/VLTI Observations of Main Sequence Stars

2004 ◽  
Vol 219 ◽  
pp. 80-84
Author(s):  
Pierre Kervella ◽  
Frédéric Thévenin ◽  
Pierre Morel ◽  
Janine Provost ◽  
Gabrielle Berthomieu ◽  
...  
Keyword(s):  
Main Sequence ◽  
Extrasolar Planets ◽  
Physical Processes ◽  
Main Sequence Stars ◽  
M Dwarfs ◽  
The Past ◽  
Wide Range ◽  
Solar Type ◽  
The Universe ◽  
Angular Diameters

Main Sequence (MS) stars are by far the most numerous class in the Universe. They are often somewhat neglected as they are relatively quiet objects (but exceptions exist), though they bear testimony of the past and future of our Sun. An important characteristic of the MS stars, particularly the solar-type ones, is that they host the large majority of the known extrasolar planets. Moreover, at the bottom of the MS, the red M dwarfs pave the way to understanding the physics of brown dwarfs and giant planets. We have measured very precise angular diameters from recent VINCI/VLTI interferometric observations of a number of MS stars in the K band, with spectral types between A1V and M5.5V. They already cover a wide range of effective temperatures and radii. Combined with precise Hipparcos parallaxes, photometry, spectroscopy as well as the asteroseismic information available for some of these stars, the angular diameters put strong constraints on the detailed models of these stars, and therefore on the physical processes at play.

Nine Centuries of Man

2017 ◽  
Keyword(s):  
Twentieth Century ◽  
Diverse Range ◽  
Gender Expectations ◽  
Court Records ◽  
The Past ◽  
Wide Range ◽  
Police Reports ◽  
Late Twentieth ◽  
Scottish History ◽  
Late Twentieth Century

What did it mean to be a man in Scotland over the past nine centuries? Scotland, with its stereotypes of the kilted warrior and the industrial ‘hard man’, has long been characterised in masculine terms, but there has been little historical exploration of masculinity in a wider context. This interdisciplinary collection examines a diverse range of the multiple and changing forms of masculinities from the late eleventh to the late twentieth century, exploring the ways in which Scottish society through the ages defined expectations for men and their behaviour. How men reacted to those expectations is examined through sources such as documentary materials, medieval seals, romances, poetry, begging letters, police reports and court records, charity records, oral histories and personal correspondence. Focusing upon the wide range of activities and roles undertaken by men – work, fatherhood and play, violence and war, sex and commerce – the book also illustrates the range of masculinities that affected or were internalised by men. Together, the chapters illustrate some of the ways Scotland’s gender expectations have changed over the centuries and how, more generally, masculinities have informed the path of Scottish history

Much Ado about (Practically) Nothing

2010 ◽  
Author(s):  
David Fisher
Keyword(s):  
Energy Source ◽  
Atomic Nucleus ◽  
The Sun ◽  
Scientific Journals ◽  
Rare Gases ◽  
Important Work ◽  
The Earth ◽  
Wide Range ◽  
Life On Mars ◽  
The Universe

There are eight columns in the Periodic Table. The eighth column is comprised of the rare gases, so-called because they are the rarest elements on earth. They are also called the inert or noble gases because, like nobility, they do no work. They are colorless, odorless, invisible gases which do not react with anything, and were thought to be unimportant until the early 1960s. Starting in that era, David Fisher has spent roughly fifty years doing research on these gases, publishing nearly a hundred papers in the scientific journals, applying them to problems in geophysics and cosmochemistry, and learning how other scientists have utilized them to change our ideas about the universe, the sun, and our own planet. Much Ado about (Practically) Nothing will cover this spectrum of ideas, interspersed with the author's own work which will serve to introduce each gas and the important work others have done with them. The rare gases have participated in a wide range of scientific advances-even revolutions-but no book has ever recorded the entire story. Fisher will range from the intricacies of the atomic nucleus and the tiniest of elementary particles, the neutrino, to the energy source of the stars; from the age of the earth to its future energies; from life on Mars to cancer here on earth. A whole panoply that has never before been told as an entity.

scholarly journals Dust Production around Carbon-Rich Stars: The Role of Metallicity

Universe ◽  
2021 ◽  
Vol 7 (7) ◽  
pp. 233
Author(s):  
Ambra Nanni ◽  
Sergio Cristallo ◽  
Jacco Th. van Loon ◽  
Martin A. T. Groenewegen
Keyword(s):  
Wind Speed ◽  
Galactic Halo ◽  
Magellanic Clouds ◽  
Asymptotic Giant Branch ◽  
Agb Stars ◽  
Circumstellar Envelopes ◽  
Chemical Enrichment ◽  
Wide Range ◽  
The Universe

Background: Most of the stars in the Universe will end their evolution by losing their envelope during the thermally pulsing asymptotic giant branch (TP-AGB) phase, enriching the interstellar medium of galaxies with heavy elements, partially condensed into dust grains formed in their extended circumstellar envelopes. Among these stars, carbon-rich TP-AGB stars (C-stars) are particularly relevant for the chemical enrichment of galaxies. We here investigated the role of the metallicity in the dust formation process from a theoretical viewpoint. Methods: We coupled an up-to-date description of dust growth and dust-driven wind, which included the time-averaged effect of shocks, with FRUITY stellar evolutionary tracks. We compared our predictions with observations of C-stars in our Galaxy, in the Magellanic Clouds (LMC and SMC) and in the Galactic Halo, characterised by metallicity between solar and 1/10 of solar. Results: Our models explained the variation of the gas and dust content around C-stars derived from the IRS Spitzer spectra. The wind speed of the C-stars at varying metallicity was well reproduced by our description. We predicted the wind speed at metallicity down to 1/10 of solar in a wide range of mass-loss rates.

scholarly journals The Discarded Image and the Debunked Tao: Objective Value in C.S. Lewis’ Medieval Model and His Critique of Modernity †

Religions ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 597
Author(s):  
Yuxiao Su
Keyword(s):  
Twentieth Century ◽  
Moral Relativism ◽  
First Century ◽  
Parallel Study ◽  
The Status ◽  
Implicit Belief ◽  
Objective Value ◽  
Medieval Model ◽  
The Universe ◽  
Spiritual Resource

This paper considers C.S. Lewis’ “doctrine of objective value” in two of his major works, The Abolition of Man and The Discarded Image. Lewis uses the Chinese name Tao, albeit with an incomplete understanding of its origins, for the objective worldview. The paper argues that Tao, as an explicit theme of The Abolition of Man, is also a determining undercurrent in The Discarded Image. In the former work, Tao is what Lewis wants to defend and restore against twentieth-century secular ideologies, which Lewis condemns as infected with “the poison of subjectivism”. In the latter work, where Lewis presents one of the best accounts of the European medieval model of the Universe, objective value (the Tao in Lewis’ argument) underlies both how the model has been shaped, and how Lewis, as a medievalist, accounts for and draws upon it as an intellectual and spiritual resource. The purpose of this parallel study is to show that Lewis’ explication of the Tao in The Abolition of Man, which is a “built-in”, implicit belief in The Discarded Image, provides a critique of tendencies towards the subjectivism prevalent in Lewis’ lifetime. These tendencies can be traced into the moral relativism, pluralism and reductionism of the twenty-first century, giving Lewis’ work the status of twentieth-century prophecy.

The Creative Advance Must Be Defended: Miscegenation, Metaphysics, and Race War in Jan Smuts’s Vision of the League of Nations

2021 ◽  
pp. 1-14
Author(s):  
JACOB KRIPP
Keyword(s):  
Twentieth Century ◽  
Settler Colonialism ◽  
International Order ◽  
League Of Nations ◽  
Early Twentieth Century ◽  
Global Peace ◽  
Mandate System ◽  
Race War ◽  
The Universe ◽  
Indirect Rule

This paper argues that the idea of global peace in early twentieth-century liberal international order was sutured together by the threat of race war. This understanding of racial peace was institutionalized in the League of Nations mandate system through its philosophical architect: Jan Smuts. I argue that the League figured in Smuts’s thought as the culmination of the creative advance of the universe: white internationalist unification and settler colonialism was the cosmological destiny of humanity that enabled a racial peace. In Smuts’s imaginary, the twin prospect of race war and miscegenation serves as the dark underside that both necessitates and threatens to undo this project. By reframing the problem of race war through his metaphysics, Smuts resolves the challenge posed by race war by institutionalizing indirect rule and segregation as a project of pacification that ensured that settlement and the creative advance of the cosmos could proceed.

The avant-garde’s visual arts in the context of Santayana’s idea of vital liberty

Human Affairs ◽  
2012 ◽  
Vol 22 (2) ◽  
Author(s):  
Krzysztof Skowroński
Keyword(s):  
Twentieth Century ◽  
Visual Arts ◽  
The Other ◽  
Political Life ◽  
The Political ◽  
Human Beings ◽  
Political Dimension ◽  
Avant Garde ◽  
Other Hand ◽  
The Universe

AbstractIn the present paper, the author looks at the political dimension of some trends in the visual arts within twentieth-century avant-garde groups (cubism, expressionism, fauvism, Dada, abstractionism, surrealism) through George Santayana’s idea of vital liberty. Santayana accused the avant-gardists of social and political escapism, and of becoming unintentionally involved in secondary issues. In his view, the emphasis they placed on the medium (or diverse media) and on treating it as an aim in itself, not, as it should be, as a transmitter through which a stimulating relationship with the environment can be had, was accompanied by a focus on fragments of life and on parts of existence, and, on the other hand, by a de facto rejection of ontology and cosmology as being crucial to understanding life and the place of human beings in the universe. The avant-gardists became involved in political life by responding excessively to the events of the time, instead of to the everlasting problems that are the human lot.

Hippocrates and Early Greek Medicine

2018 ◽  
pp. 214-232
Author(s):  
Elizabeth Craik
Keyword(s):  
Vascular System ◽  
Human Life ◽  
Medical Writing ◽  
Detailed Account ◽  
Case Histories ◽  
Hippocratic Corpus ◽  
Wide Range ◽  
The Universe ◽  
Medical Writers

The chapter surveys early Greek medicine, primarily the works attributed to Hippocrates, but also evidence for other medical writing, such as that in the Anonymus Londinensis papyrus, and in the fragments of the pre-Socratics. It is noted that the fragments of Alcmaeon indicate experience in dissection of animals, that Diogenes of Apollonia gives a detailed account of the vascular system, and that Plato has an extensive biomedical section in Timaeus. In general, early medical writers show concern with the relation of microcosm to macrocosm and of human life to the universe; also, with opposing principles (hot and cold, wet and dry, thick and thin, rare and dense) such that health is commonly seen in terms of bodily balance and avoidance of excess. The seventy or so works of the Hippocratic corpus cover a wide range of subjects, notably prognostic signs, surgery, gynecology, case histories and aphoristics lore.

scholarly journals Spontaneous and forced decay of atomic nuclei realized in two stages

2020 ◽  
pp. 122-135
Author(s):  
Viacheslav S. Okunev
Keyword(s):  
Stable Isotopes ◽  
Kinetic Energy ◽  
Nuclear Reactions ◽  
External Influence ◽  
Physical Processes ◽  
Atomic Nuclei ◽  
Wide Range ◽  
Fragmentation Reactions ◽  
Two Stages ◽  
Principle Of Similarity

The main purpose of the work is to determine the possibility of cluster decays of superheavy atomic nuclei. The universality of the principle of similarity allows you to apply it to the analysis of not studied physical processes. Analogies are observed in forced and spontaneous decays of atomic nuclei. It is shown that in two stages, processes initiated by external influence are realized: fragmentation reactions, forced fission of stable nuclei, and impact radioactivity. Nuclear reactions of fragmentation and forced fission of stable isotopes of lead and bismuth are realized under the action of particles (hadrons) and light atomic nuclei with a kinetic energy of more than 108 eV. Shock radioactivity is observed in the collision of macroobjects having a crystalline structure at speeds of at least ∼1 km/s. Also, in two stages, some radioactive decays of atomic nuclei are realized, including extremely rare cluster decays. Based on the analogies of the processes considered, some cautious predictions are made about the possibility of cluster decays of atomic nuclei in a wide range of atomic masses.

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