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  • 1
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    transcript Verlag | transcript Verlag
    Publikationsdatum: 2024-03-22
    Beschreibung: Gene gelten im Allgemeinen als die Essenz eines Lebewesens, die all seine charakteristischen Eigenschaften bestimmt. Aus biologischer Sicht trifft diese Vorstellung jedoch längst nicht mehr zu. Im Mittelpunkt dieses Buches steht daher die Frage, warum und wie das essentialistische Denken die gesellschaftliche Wahrnehmung biologischer Forschungsprojekte immer noch beeinflusst. Anhand aktueller Erkenntnisse der Genetik und Epigenetik geht Kirsten Schmidt auf die Suche nach einer neuen Interpretation des Genbegriffs im Zeitalter der Postgenomik. Das Verständnis von Genen als dynamischen Prozessen erweist sich dabei als eine fruchtbare Alternative zum Essentialismus.
    Schlagwort(e): Essentialismus ; Gen ; Philosophie ; Epigenetik ; Biologie ; Genetik ; Postgenomik ; Leben ; Wissenschaft ; Wissenschaftsphilosophie ; Naturphilosophie ; Wissenschaftssoziologie ; Soziologie ; Philosophy ; Biology ; Life ; Science ; Philosophy of Science ; Philosophy of Nature ; Sociology of Science ; Sociology ; bic Book Industry Communication::P Mathematics & science::PD Science: general issues::PDA Philosophy of science ; bic Book Industry Communication::H Humanities::HP Philosophy::HPJ Philosophy: metaphysics & ontology ; bic Book Industry Communication::P Mathematics & science::PD Science: general issues::PDR Impact of science & technology on society
    Sprache: Deutsch
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  • 2
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    Masaryk University Press | Masaryk University
    Publikationsdatum: 2024-04-04
    Beschreibung: Title in English: History of the Institute of Biology, Faculty of Medicine, Masaryk University A representative book on the history and present of one of the oldest institutes of the Faculty of Medicine of Masaryk University, which has been contributing significantly to the development of biological sciences since its inception.
    Schlagwort(e): Historical sciences ; Historyof Medicine ; health care ; Personalities ; Natural science ; Biology ; thema EDItEUR::P Mathematics and Science::PD Science: general issues::PDX History of science
    Sprache: Tschechisch
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  • 3
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    Logos Verlag Berlin | Logos Verlag Berlin
    Publikationsdatum: 2024-04-04
    Beschreibung: In Zeiten, in denen die Komplexität gesellschaftlicher, politischer, wirtschaftlicher und technologischer Probleme zunehmend steigt, ist der Erwerb einer naturwissenschaftlichen Grundbildung für die persönliche Meinungsbildung von zentraler Bedeutung. Hierzu gehört das Erlernen von naturwissenschaftlichen Erkenntnismethoden wie dem Experimentieren. Erkenntnisse zu experimentierspezifischen Kompetenzen zeigen, dass Lernende über unterschiedliche Vorstellungen bezüglich des Experimentierens verfügen. Diese zeigen sich in unterschiedlichen Vorgehensweisen, die mehr oder weniger stark von der Vorgehensweise in realer wissenschaftlicher Forschung abweichen. Ziel der vorliegenden Studie ist eine differenzierte Erfassung und Analyse individueller Prozessstrukturen sowie prozessbezogener Niveaustufen von Experimentierprozessen Lehramtsstudierender der Biologie. Die Ergebnisse zeigen, dass die meisten Experimentierprozesse nicht, wie in idealisierten Modellen angenommen, einem linearen Prozessverlauf verlaufen, sondern wiederholte Wechsel zwischen den Experimentierphasen aufweisen. Insbesondere die Durchführung nimmt hier eine zentrale Stellung ein. Die Vernetzung der Experimentierphasen ist unterschiedlich ausgeprägt und steht in einem positiven Zusammenhang mit der Qualität eines Experimentierprozesses. Die prozessbezogenen Niveaustufen weisen Ausprägungen über alle Niveaus hinweg auf. Aus den Ergebnissen werden Hinweise zur Gestaltung von Unterricht und universitärer Lehre sowie Implikationen für die fachdidaktische Forschung abgeleitet.
    Schlagwort(e): Science ; Science ; Life Sciences ; Biology ; Education ; thema EDItEUR::P Mathematics and Science::PD Science: general issues ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences ; thema EDItEUR::J Society and Social Sciences::JN Education
    Sprache: Deutsch
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  • 4
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    Logos Verlag
    Publikationsdatum: 2024-04-05
    Beschreibung: New technologies have revealed previously unknown and invisible parts of the human body and made it visible at the molecular level, revealing in turn more detailed structures and arrangements than those which were previously available. In doing so, in many ways they refine, expand, and even completely overturn forms of contemporary knowledge. This book maps the shifts and blurring of boundaries in contemporary bioscientific discourse. The authors of its chapters trace the shifts of boundaries in terms of the gradual blurring of the validity of established concepts, interpretive frameworks, and standards of judgment, which are analysed from ontological, gnoseological, ethical, and social perspectives. At the same time, they also map the blurring of boundaries in terms of the interdisciplinary crossing of boundaries between various scientific and artistic disciplines. The shifting of boundaries ultimately forms a part of these boundaries’ definition; upon the basis of a rationally guided discussion, these shifts can be guided and corrected so as to avoid any irreversible damage. Jana Tomašovičová is a philosopher with a special interest in contemporary philosophy and bioethics. She analyses the impact of biotechnology on traditional social, ethical, and anthropological concepts and their relevance in new conditions. She is an associate professor at the Faculty of Arts, University of Ss. Cyril and Methodius in Trnava, Slovakia. During her bioethics research, she conducted short research stays at the universities of Bonn, Heidelberg, Tübingen, and Zürich.
    Schlagwort(e): Science ; Life Sciences ; Biology ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences
    Sprache: Englisch
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  • 5
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    Taylor & Francis | CRC Press
    Publikationsdatum: 2023-09-12
    Beschreibung: The complex regulations of the Endangered Species Act established by the U.S. Fish and Wildlife Service can be challenging for environmental professionals who must comply with them or assist clients in compliance. This is true especially for those without a background in biology or ecology. The Endangered Species Act: History, Implementation, Successes, and Controversies discusses the Act using clear scientific prose that all professionals whose activities fit into the ESA compliance process can readily comprehend, including those with limited education in science. The book begins by exploring the deeply rooted history of the Endangered Species Act, which extends back decades preceding its enactment in 1973. It continues with a discussion of the basic scientific theory underlying the Act and provides an overview of its key regulations. The author also examines the Act in the context of other key environmental planning statutes such as the National Environmental Policy Act and the Clean Water Act, especially Section 404 of the Clean Water Act, which relates specifically to wetlands. The remainder of the book details the regulatory processes faced by other government agencies and private developers who must routinely ensure that their actions comply with the Endangered Species Act. It concludes with a broad discussion of current controversies associated with the Act and how those controversies might ultimately change how environmental practitioners will have to comply with the Act in the future. The book is neither a defense of the Endangered Species Act and its associated regulations nor a call to repeal or modify the Act or regulations. The presentation is factual and avoids the hype and hyperbole commonly directed at the Act by both environmental activists and deregulation proponents. Readers will gain a solid understanding of how the Act was established, what goals were envisioned by its framers, how current environmental practice under the Act has been shaped, and how those practices might be changed in the future.
    Schlagwort(e): Environment law ; Applied ecology ; Biology ; life sciences ; Zoology & animal sciences ; bic Book Industry Communication::L Law::LN Laws of Specific jurisdictions::LNK Environment, transport & planning law::LNKJ Environment law ; bic Book Industry Communication::R Earth sciences, geography, environment, planning::RN The environment::RNC Applied ecology ; bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences ; bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences::PSV Zoology & animal sciences
    Sprache: Englisch
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  • 6
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    UCL Press
    Publikationsdatum: 2024-03-23
    Beschreibung: Bloomsbury Scientists is the story of the network of scientists and artists living in a square mile of London before and after the First World War. This inspired group of men and women viewed creativity and freedom as the driving force behind nature, and each strove to understand this in their own inventive way. Their collective energy changed the social mood of the era and brought a new synthesis of knowledge to ideas in science and art. Class barriers were threatened as power shifted from the landed oligarchy to those with talent and the will to make a difference. A time of unexpected opportunities, from the new disciplines of Genetics and Ecology to Post-Impressionism and beyond, Michael Boulter seamlessly weaves together the stories originating from Bloomsbury’s laboratories, libraries and studios. He narrates the breakthroughs of scientists such as Ray Lankester and Marie Stopes alongside the creative outputs of H. G. Wells and Virginia Woolf, among many others, and intricately connects them all through personal friendships, grievances, quarrels and affections. Bloomsbury Scientists offers a fresh and crucial perspective on this history at a time when the complex relationship between science and art continues to be debated.
    Schlagwort(e): london ; history of science ; bloomsbury ; scientists ; Biology ; Charles Darwin ; Evolution ; Francis Galton ; thema EDItEUR::1 Place qualifiers::1D Europe::1DD Western Europe::1DDU United Kingdom, Great Britain ; thema EDItEUR::N History and Archaeology::NH History::NHD European history ; thema EDItEUR::P Mathematics and Science::PD Science: general issues::PDX History of science
    Sprache: Englisch
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  • 7
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    Frontiers Media SA
    Publikationsdatum: 2024-04-04
    Beschreibung: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact
    Schlagwort(e): polyoxometalates ; Catalysis ; Biology ; Energy ; Materials Science ; magnetic materials ; active matter ; Water-oxidation ; Keggin ; supramolecular chemistry ; thema EDItEUR::P Mathematics and Science::PD Science: general issues
    Sprache: Englisch
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  • 8
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    Frontiers Media SA
    Publikationsdatum: 2024-04-04
    Beschreibung: The Frontiers in Chemistry Editorial Office team are delighted to present the inaugural “Frontiers in Chemistry: Rising Stars” article collection, showcasing the high-quality work of internationally recognized researchers in the early stages of their independent careers. All Rising Star researchers featured within this collection were individually nominated by the Journal’s Chief Editors in recognition of their potential to influence the future directions in their respective fields. The work presented here highlights the diversity of research performed across the entire breadth of the chemical sciences, and presents advances in theory, experiment and methodology with applications to compelling problems. This Editorial features the corresponding author(s) of each paper published within this important collection, ordered by section alphabetically, highlighting them as the great researchers of the future. The Frontiers in Chemistry Editorial Office team would like to thank each researcher who contributed their work to this collection. We would also like to personally thank our Chief Editors for their exemplary leadership of this article collection; their strong support and passion for this important, community-driven collection has ensured its success and global impact.
    Schlagwort(e): Green and Sustainable Chemistry ; Analytical Chemistry ; Theoretical and Computational Chemistry ; Polymer Chemistry ; Medicinal and Pharmaceutical Chemistry ; Organic Chemistry ; Nanoscience ; Catalysis and Photocatalysis ; Supramolecular Chemistry ; Electrochemistry ; Inorganic Chemistry ; Chemical Biology ; thema EDItEUR::P Mathematics and Science::PD Science: general issues
    Sprache: Englisch
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  • 9
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publikationsdatum: 2024-04-05
    Beschreibung: Nanofibers, particularly those of a carbonaceous content, have received increased interest in the past two decades due to their outstanding physico-chemical characteristics and their possibility to form and contribute towards a plethora of potentially advantageous materials for consumer, industrial and medical applications. Despite this, and together with the numerous research studies and published articles that have sought to investigate these aspects, the potential impact of CNTs is still not understood. Whether or not nanofibers may be able to provide a sophisticated alternative to conventional materials is still debatable, whilst their effects upon both environmental and human health are highly equivocal. How nanofibers are conceived can determine how they may interact with different environments, such as the human body. Understanding each key step of the synthesis and production of nanofibers to their use within potential applications is therefore essential in gaining an insight into how they may be perceived by any biological system and environment. Thus, obtaining such information will enable all scientific communities to begin to realize the potential advantages posed by nanofibers. The aim of this Special Issue therefore, was to provide a collective overview of nanofibers; ‘from synthesis to application’. The Issue particularly focuses upon carbon-based nanofibers, but also highlights alternative nanofiber types. Emphasis is given holistically, with articles discussing the production routes of nanofibers, their plight during their life-cycle (origin to applied form and effects over time), as well as how nanofibers could either incite conflict, or provide aid to human and environmental health.
    Schlagwort(e): QD1-999 ; Toxicology ; Chemistry ; Biology ; Material Science ; Nanofibers ; Nanotechnology ; thema EDItEUR::P Mathematics and Science::PN Chemistry
    Sprache: Englisch
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  • 10
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    transcript Verlag
    Publikationsdatum: 2021-02-10
    Beschreibung: Wahrnehmung, Kognition und Ästhetik lassen sich als differente Verarbeitungs- und Ausdrucksformen einer biologischen Basisausstattung des Menschen verstehen. Ob diese stabil sind oder ob sie kulturell überformt oder gar transformiert werden, bildet die zentrale medienanthropologische Fragestellung des Bandes. Dabei wird geprüft, welcher Art die wechselseitigen Impulse sind, die zu kulturellen und biologischen Veränderungen führen können, welche Wirkung sie besitzen und welche Dauer ihnen zukommt. Diese Fragen richten sich nicht allein auf Prozesse wahrnehmungstechnischer, kognitiver oder ästhetischer Habitualisierungen, sondern thematisieren deren physiologische Voraussetzungen. Mit der Beteiligung ausgewiesener Forscher aus den Bereichen Biologie, Medizin und Hirnforschung erschließt dieser Band Neuland im Grenzgebiet der Natur- und Kulturwissenschaften.
    Schlagwort(e): Wahrnehmung ; Kognition ; Ästhetik ; Medien ; Biologie ; Hirnforschung ; Medienästhetik ; Medienwissenschaft ; Aesthetics ; Media ; Biology ; Media Aesthetics ; Media Studies ; bic Book Industry Communication::J Society & social sciences::JF Society & culture: general::JFD Media studies
    Sprache: Deutsch
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  • 11
    Publikationsdatum: 2024-04-05
    Beschreibung: The Great Lagoon is a central part of the Szczecin Lagoon, a major component in the Odra River estuary system. It is also an important European natural heritage site and one of the largest resting places for migratory birds in the Baltic Sea area. The first part of Wolnomiejski's and Witek’s book gives a thorough overview of the most up-to-date knowledge of this region, including the assessment of its biological production. Based on these findings authors develop a food web model of the Polish part of the Szczecin Lagoon, identifying a total of 45 trophic-functional components. The model describes a variety of features ranging from the magnitude of consumption, to the amount of unassimilated food and export of individual system components, and serves as an invaluable source, helping researchers to estimate various ecological indicators of The Great Lagoon’s ecosystem.
    Schlagwort(e): QH301-705.5 ; Biology ; Natural Sciences ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences
    Sprache: Englisch
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  • 12
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    Universitätsverlag Göttingen
    Publikationsdatum: 2024-04-04
    Beschreibung: This bibliography documents the printed works of Johann Friedrich Blumenbach (1752–1840) and makes them accessible for research purposes. Blumenbach was Professor of Medicine and Natural History at the University of Göttingen. He was one of the leading exponents of the revolutionary change of the geo-biological concept of the world at the turn of the 18th to the 19th century. His works exemplarily show the interactions between the life sciences, the humanities and the social sciences of his day.
    Schlagwort(e): History of Universities ; Bibliography ; Biology ; History of Science ; Darwinism ; thema EDItEUR::P Mathematics and Science::PD Science: general issues ; thema EDItEUR::J Society and Social Sciences::JN Education::JNM Higher education, tertiary education ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GB Encyclopaedias and reference works::GBC Reference works::GBCR Bibliographies, catalogues ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences ; thema EDItEUR::P Mathematics and Science::PD Science: general issues::PDX History of science
    Sprache: Deutsch
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  • 13
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    University of Tartu Press
    Publikationsdatum: 2022-04-28
    Beschreibung: For more than 40 years, Jesper Hoffmeyer has been committed to the idea of developing “a semiotics of nature, or biosemiotics as he chose to call this effort, that could intelligibly explain how all the phenomena of inherent meaning and signification in living nature – from the lowest level of sign processes in unicellular organisms to the cognitive and social behavior of animals – can emerge from a universe that was not so organized and meaningful from the very beginning” (Emmeche et al. 2002: 41). In this volume, over 80 world-class scholars from more than 20 countries select a short quotation taken from any of Jesper Hoffmeyer’s texts and provide their scholarly commentary upon that passage – whether in the form of an analytical explication, a critical disagreement or a conceptual extension – that as they feel asks the questions that need to be asked, proposes the ideas that need to be proposed, or that draws out the implications that need to be so explicitly drawn out, germane to the claims of the selected passage. At once a celebration and a serious academic development of the work of Jesper Hoffmeyer, this landmark volume marks the occasion of his 70th birthday on February 21, 2012.
    Schlagwort(e): jesper hoffmeyer ; semiotics ; biosemiotics ; Biology ; Charles Sanders Peirce ; Evolution ; Semiosis ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GT Interdisciplinary studies::GTE Semiotics / semiology
    Sprache: Englisch
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  • 14
    Publikationsdatum: 2024-04-08
    Beschreibung: The name DGGTB (Deutsche Gesellschaft für Geschichte und Theorie der Biologie; German Society for the History and Theory of Biology) reflects recent history as well as German tradition. The Society is a relatively late addition to a series of German societies of science and medicine that began with the »Deutsche Gesellschaft für Geschichte der Medizin und der Naturwissenschaften«, founded in 1910 by Leipzig University's Karl Sudhoff (1853-1938), who wrote: »We want to establish a ,German' society in order to gather German-speaking historians together in our special disciplines so that they form the core of an international society...«. Yet Sudhoff, at this time of burgeoning academic internationalism, was »quite willing« to accommodate the wishes of a number of founding members and »drop the word German in the title of the Society and have it merge with an international society«. The founding and naming of the Society at that time derived from a specific set of historical circumstances, and the same was true some 80 years later when in 1991, in the wake of German reunification, the »Deutsche Gesellschaft für Geschichte und Theorie der Biologie« was founded. From the start, the Society has been committed to bringing studies in the history and philosophy of biology to a wide audience, using for this purpose its Jahrbuch für Geschichte und Theorie der Biologie. Parallel to the Jahrbuch, the Verhandlungen zur Geschichte und Theorie der Biologie has become the by now traditional medium for the publication of papers delivered at the Society's annual meetings. In 2005 the Jahrbuch was renamed Annals of the History and Philosophy of Biology, reflecting the Society's internationalist aspirations in addressing comparative biology as a subject of historical and philosophical studies.
    Beschreibung: The name DGGTB (Deutsche Gesellschaft für Geschichte und Theorie der Biologie; German Society for the History and Theory of Biology) reflects recent history as well as German tradition. The Society is a relatively late addition to a series of German societies of science and medicine that began with the »Deutsche Gesellschaft für Geschichte der Medizin und der Naturwissenschaften«, founded in 1910 by Leipzig University's Karl Sudhoff (1853-1938), who wrote: »We want to establish a ,German' society in order to gather German-speaking historians together in our special disciplines so that they form the core of an international society...«. Yet Sudhoff, at this time of burgeoning academic internationalism, was »quite willing« to accommodate the wishes of a number of founding members and »drop the word German in the title of the Society and have it merge with an international society«. The founding and naming of the Society at that time derived from a specific set of historical circumstances, and the same was true some 80 years later when in 1991, in the wake of German reunification, the »Deutsche Gesellschaft für Geschichte und Theorie der Biologie« was founded. From the start, the Society has been committed to bringing studies in the history and philosophy of biology to a wide audience, using for this purpose its Jahrbuch für Geschichte und Theorie der Biologie. Parallel to the Jahrbuch, the Verhandlungen zur Geschichte und Theorie der Biologie has become the by now traditional medium for the publication of papers delivered at the Society's annual meetings. In 2005 the Jahrbuch was renamed Annals of the History and Philosophy of Biology, reflecting the Society's internationalist aspirations in addressing comparative biology as a subject of historical and philosophical studies.
    Schlagwort(e): Biology ; Historical studies ; Philosophical studies ; Maggi ; Pavia ; bic Book Industry Communication::H Humanities::HP Philosophy::HPC History of Western philosophy ; bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences ; bic Book Industry Communication::W Lifestyle, sport & leisure::WN Natural history ; thema EDItEUR::Q Philosophy and Religion::QD Philosophy::QDH Philosophical traditions and schools of thought ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences ; thema EDItEUR::W Lifestyle, Hobbies and Leisure::WN Nature and the natural world: general interest
    Sprache: Deutsch
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  • 15
    Publikationsdatum: 2022-04-28
    Beschreibung: At the start of the twenty-first century, warnings have been raised in some quarters about how – by intent or by mishap – advances in biotechnology and related fields could aid the spread of disease. Science academics, medical organisations, governments, security analysts, and others are among those that have sought to raise concern. Education and Ethics in the Life Sciences examines a variety of attempts to bring greater awareness to security concerns associated with the life sciences. It identifies lessons from practical initiatives across a wide range of national contexts as well as more general reflections about education and ethics. The eighteen contributors bring together perspectives from a diverse range of fields – including politics, virology, sociology, ethics, security studies, microbiology, and medicine – as well as their experiences in universities, think tanks and government. In offering their assessment about what must be done and by whom, each chapter addresses a host of challenging practical and conceptual questions. Education and Ethics in the Life Sciences will be of interest to those planning and undertaking training activities in other areas. In asking how education and ethics are being made to matter in an emerging area of social unease, it will also be of interest to those with more general concerns about professional conduct.
    Schlagwort(e): biotechnology ; prevention ; ethics ; education ; Bioethics ; Biological warfare ; Biological Weapons Convention ; Biology ; Biosecurity ; China ; Dual-use technology ; bic Book Industry Communication::J Society & social sciences::JF Society & culture: general::JFM Ethical issues & debates::JFMG Ethical issues: scientific & technological developments ; bic Book Industry Communication::J Society & social sciences::JN Education
    Sprache: Englisch
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  • 16
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    Taylor & Francis | Routledge
    Publikationsdatum: 2024-04-07
    Beschreibung: Attending the World Economic Forum this past week, I was struck by two trends. The first was that brain research has emerged as a hot topic. Not only was brain science or brain health a new theme at the meeting, research on the brain emerged in discussions about next generation computing, global cooperation, and even models of economic development as well as being linked to mental health or mindfulness. In a meeting frequented largely by economists and business leaders, I was surprised by the number of non-scientists who have become enchanted by brain science. Clearly this is the era of the brain, with mental health now part of a much broader discussion.
    Schlagwort(e): policy ; society ; mental health ; Biology ; Epigenetics ; Genetics ; Genome ; Neuroscience ; Plastic ; Social policy ; thema EDItEUR::J Society and Social Sciences ; thema EDItEUR::M Medicine and Nursing
    Sprache: Englisch
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  • 17
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    Coimbra University Press
    Publikationsdatum: 2022-01-31
    Beschreibung: This work brings together various contributions from experts in very diverse areas of knowledge, to discuss the theme ‘Light’ from various points of view. The subjects gathered in this work come from the areas of Physics, Philosophy, Transcendence, Chemistry, Optics, Literature, History of Sciences, History, Geography, International Relations, Biology, Psychology, Art, Cinema and Photography, Medicine and Museology. The texts partially reflect the contents presented at the interdisciplinary colloquium ‘Visões da Luz’ held in October 2015, on the occasion of the International Year of Light 2015, under the aegis of III-UC and open to academia and society, to teachers of the Basic and Secondary Education.
    Schlagwort(e): Geography ; Chemistry ; Literature ; Geology ; Light ; Optics ; Biology ; History ; Physics
    Sprache: Portugiesisch
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  • 18
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    Logos Verlag Berlin | Logos Verlag Berlin
    Publikationsdatum: 2024-04-05
    Beschreibung: The field of psychiatry changed dramatically in the latter half of the nineteenth century, largely by embracing science. The transformation was most evident in Germany, where many psychiatrists began to work concurrently in the clinic and the laboratory. Some researchers sought to discover brain correlates of mental illness, while others looked to experimental psychology for insights into mental dynamics. Featured here, are the lives and works of Emil Kraepelin - often considered the founder of modern scientific psychiatry, his teacher Bernhard Gudden, and his anatomist colleague Franz Nissl. The book describes scientific findings together with the methods used; it explains why diagnoses were then (and are still now) so difficult to make; it also explores mind-brain controversies. The Making of Modern Psychiatry will inform and delight mental health professionals as well as all persons curious about the origins of modern psychiatry.
    Schlagwort(e): Science ; Life Sciences ; Biology ; Psychology ; Technology & Engineering ; Agriculture ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences ; thema EDItEUR::J Society and Social Sciences::JM Psychology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TV Agriculture and farming
    Sprache: Englisch
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  • 19
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    transcript Verlag | transcript Verlag
    Publikationsdatum: 2024-03-27
    Beschreibung: From self-help books and nootropics, to self-tracking and home health tests, to the tinkering with technology and biological particles - biohacking brings biology, medicine, and the material foundation of life into the sphere of »do-it-yourself«. This trend has the potential to fundamentally change people's relationship with their bodies and biology but it also creates new cultural narratives of responsibility, authority, and differentiation. Covering a broad range of examples, this book explores practices and representations of biohacking in popular culture, discussing their ambiguous position between empowerment and requirement, promise and prescription.
    Schlagwort(e): Culture ; Representation ; Biology ; Medicine ; Biocultures ; Biohacking ; Biotechnology ; Cultural Narratives ; DIY ; America ; Body ; Biopolitics ; American Studies ; Life Sciences ; Cultural Studies ; thema EDItEUR::D Biography, Literature and Literary studies::DS Literature: history and criticism::DSB Literary studies: general ; thema EDItEUR::J Society and Social Sciences::JP Politics and government::JPA Political science and theory ; thema EDItEUR::M Medicine and Nursing::MB Medicine: general issues
    Sprache: Englisch
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  • 20
    Publikationsdatum: 2021-05-19
    Beschreibung: The pearl oyster Pinctada radiata and the cockle Cerastoderma glaucum are among the most abundant bivalve molluscs in southern Tunisian waters. These species are not currently subject to any investigation despite their important economic value in the world. For this reason, their biological parameters, their spatial distribution and their stock assessment were undertaken in the Gulf of Gabes. The reproductive cycle was studied in relation to variations of the environment parameters. The specimens were collected monthly during one year (2007) in sites of El Kraten and El Jorf (Kerkennah Islands) for the first species and sites of Sidi Mansour and El Hicha (North of Sfax and Gabes) for the second. An intraspecific polymorphism biometric trait for P. radiata and C. glaucum was performed using statistical comparison methods and multivariate analysis methods. Results of analyzes showed heterogeneity between populations. For Pinctada radiata, the sex ratio unbalanced, although males dominated among smaller individuals and females were predominant in larger size-classes. Evidence of protrandric hermaphroditism was observed with males maturing earlier than females. Seasonal changes in macroand microscopic properties of the gonads of both sexes showed that this species displayed a clearly defined annual reproductive cycle with a major peak in summer and a minor peak in autumn. The onset of reproduction appears to be triggered by the rising seawater temperature during spring and summer. P. radiata exhibited a short resting phase that occurred simultaneously in both sexes from the end of December until early February. For Cerastoderma glaucum, the overall samples presented a balanced sex ratio, with males dominating among smaller individuals and females predominating in larger size classes. The seasonal changes assessed through macro- and microscopic properties in the gonads of both sexes indicated a clearly defined annual reproductive cycle. Reproductive activity of C. glaucum was greatest from spring to late autumn, with two reproductive peaks (May and November). Gametogenic activity in both sexes was apparently triggered by the rising seawater temperature during spring and summer. These results support previous findings of latitudinal changes in the reproductive behaviour of C. glaucum. Due to the extensive period of gonadal activity, C. glaucum exhibited a short resting phase that occurred simultaneously in both sexes throughout January and February. In terms of stock assessment and spatial distribution of P. radiata, results showed a scattered distribution pattern of the species according to location and depth ranging between 0 and 145 ind.m-². P. radiata was encountered from the intertidal zone to 40 m depth, with a highest population densities recorded at depth range of 2-20 m. The total stock was estimated to be 27584.9 ± 11504.5 million individuals. Oyster distribution seems influenced by the substrate type. This high population of pearl oysters was associated with large cover of seagrass Posidonia oceanica which provides an excellent substratum for attachment. The littoral zone seems not to be the preferred habitat for the proliferation of this immigrant species. Oysters’ size increased steadily with depth, ranging from a mean of 37.98 ± 0.40 mm SH at 0-1 m to 60.98 ± 0.68 mm SH at 20-100 m depth range. Size structure analysis showed that deep water population was dominated by large individuals reaching 96 mm SH. In terms of geographical occupation and stock assessment of C. glaucum, results showed a scattered distribution pattern of the species according to location. The consequence was a remarkable biomass which represented 4736 tons of total fresh weight and high abundance levels reaching over 1982 million individuals estimated in the area of 20122 hectares. In conclusion, this study is the first report of an extraordinary abundance of Pinctada radiata and Cerastoderma glaucum in southern Tunisian waters. It gives more information about their stocks in the colonization area. The data may help to determine future quantitative changes indicating trends in the study area that are exposed to various factors of environmental conditions and human activities.
    Beschreibung: Submitted
    Beschreibung: ABONDANCE
    Beschreibung: BILOGIE
    Beschreibung: Pinctada radiata
    Beschreibung: Cerastoderma glaucum
    Beschreibung: Huitre perlière
    Schlagwort(e): Abundance ; Biology ; Shellfish
    Repository-Name: AquaDocs
    Materialart: Theses and Dissertations , Phd thesis
    Format: 170
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  • 21
    Publikationsdatum: 2021-05-19
    Beschreibung: Instittuto Nacional de Investigaçao Pesqueira, INIP, luanda , Angola
    Beschreibung: Bachelors
    Beschreibung: Trabaho de fin cdoursado para obtençâo do grau de licenciatura em Biologica
    Beschreibung: Published
    Beschreibung: biologia marinha, fitoplâncton, limnologia, algas
    Beschreibung: marine biology, phytoplankton, algae,
    Schlagwort(e): Phytoplankton ; Nannoplankton ; Biology ; Limnology ; Algae
    Repository-Name: AquaDocs
    Materialart: Theses and Dissertations , Bachelor thesis
    Format: 56
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  • 22
    Publikationsdatum: 2014-11-07
    Beschreibung: Author(s): Hui Zhang, Fangfei Ming, Hyun-Jung Kim, Hongbin Zhu, Qiang Zhang, Hanno H. Weitering, Xudong Xiao, Changgan Zeng, Jun-Hyung Cho, and Zhenyu Zhang Exploration and manipulation of electronic states in low-dimensional systems are of great importance in the fundamental and practical aspects of nanomaterial and nanotechnology. Here, we demonstrate that the incorporation of vacancy defects into monatomic indium wires on n-type Si(111) can stabilize... [Phys. Rev. Lett. 113, 196802] Published Thu Nov 06, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 23
    Publikationsdatum: 2014-11-07
    Beschreibung: Author(s): A. Biffin, R. D. Johnson, I. Kimchi, R. Morris, A. Bombardi, J. G. Analytis, A. Vishwanath, and R. Coldea Materials that realize Kitaev spin models with bond-dependent anisotropic interactions have long been searched for, as the resulting frustration effects are predicted to stabilize novel forms of magnetic order or quantum spin liquids. Here, we explore the magnetism of γ-Li2IrO3, which has the topolo... [Phys. Rev. Lett. 113, 197201] Published Thu Nov 06, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 24
    Publikationsdatum: 2014-11-07
    Beschreibung: Author(s): Shu-Ping Lee, Karen Michaeli, Jason Alicea, and Amir Yacoby Quantum spin Hall–superconductor hybrids are promising sources of topological superconductivity and Majorana modes, particularly given recent progress on HgTe and InAs/GaSb. We propose a new method of revealing topological superconductivity in extended quantum spin Hall Josephson junctions supportin... [Phys. Rev. Lett. 113, 197001] Published Thu Nov 06, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 25
    Publikationsdatum: 2014-11-07
    Beschreibung: Author(s): D. Kamburov, Yang Liu, M. A. Mueed, M. Shayegan, L. N. Pfeiffer, K. W. West, and K. W. Baldwin Composite fermions (CFs), exotic particles formed by pairing an even number of flux quanta to each electron, provide a fascinating description of phenomena exhibited by interacting two-dimensional electrons at high magnetic fields. At and near Landau level filling ν=1/2, CFs occupy a Fermi sea and e... [Phys. Rev. Lett. 113, 196801] Published Thu Nov 06, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 26
    Publikationsdatum: 2014-11-08
    Beschreibung: Author(s): Shiyong Wang, Liang Z. Tan, Weihua Wang, Steven G. Louie, and Nian Lin We demonstrate that Dirac fermions can be created and manipulated in a two-dimensional electron gas (2DEG). Using a cryogenic scanning tunneling microscope, we arranged coronene molecules one by one on a Cu(111) surface to construct artificial graphene nanoribbons with perfect zigzag (ZGNRs) or arm-... [Phys. Rev. Lett. 113, 196803] Published Fri Nov 07, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 27
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    American Physical Society (APS)
    Publikationsdatum: 2014-11-08
    Beschreibung: Author(s): Joji Nasu, Masafumi Udagawa, and Yukitoshi Motome The quantum spin liquid is an exotic quantum state of matter in magnets. This state is a spin analog of liquid helium that does not solidify down to the lowest temperature due to strong quantum fluctuations. In conventional fluids, the liquid and gas possess the same symmetry and adiabatically conne... [Phys. Rev. Lett. 113, 197205] Published Fri Nov 07, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 28
    Publikationsdatum: 2014-11-08
    Beschreibung: Author(s): Gang Chen, Hae-Young Kee, and Yong Baek Kim We study the Mott transition from a metal to cluster Mott insulators in the 1/4- and Please note that APS made slight change to the title of the paper1/8-filled pyrochlore lattice systems. It is shown that such Mott transitions can arise due to charge localization in clusters or in tetrahedron units... [Phys. Rev. Lett. 113, 197202] Published Fri Nov 07, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 29
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    American Physical Society (APS)
    Publikationsdatum: 2014-11-08
    Beschreibung: Author(s): Jaeyoon Cho We consider general locally interacting arbitrary-dimensional lattice spin systems that are gapped for any system size. We show under reasonable conditions that nondegenerate ground states of such systems obey the entanglement area law. In so doing, we offer an intuitive picture on how a spectral ga... [Phys. Rev. Lett. 113, 197204] Published Fri Nov 07, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 30
    Publikationsdatum: 2014-11-08
    Beschreibung: Author(s): A. Hamadeh, O. d’Allivy Kelly, C. Hahn, H. Meley, R. Bernard, A. H. Molpeceres, V. V. Naletov, M. Viret, A. Anane, V. Cros, S. O. Demokritov, J. L. Prieto, M. Muñoz, G. de Loubens, and O. Klein It is demonstrated that the threshold current for damping compensation can be reached in a 5  μm diameter YIG(20  nm)|Pt(7  nm) disk. The demonstration rests upon the measurement of the ferromagnetic resonance linewidth as a function of Idc using a magnetic resonance force microscope (MRFM). It is s... [Phys. Rev. Lett. 113, 197203] Published Fri Nov 07, 2014
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  • 31
    Publikationsdatum: 2014-11-04
    Beschreibung: Author(s): A. O. Sushkov, I. Lovchinsky, N. Chisholm, R. L. Walsworth, H. Park, and M. D. Lukin An NMR scheme based on nitrogen vacancies in diamond images the spins of individual protons. [Phys. Rev. Lett. 113, 197601] Published Mon Nov 03, 2014
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  • 32
    Publikationsdatum: 2014-11-04
    Beschreibung: Author(s): Y. Shiomi, K. Nomura, Y. Kajiwara, K. Eto, M. Novak, Kouji Segawa, Yoichi Ando, and E. Saitoh We report successful spin injection into the surface states of topological insulators by using a spin pumping technique. By measuring the voltage that shows up across the samples as a result of spin pumping, we demonstrate that a spin-electricity conversion effect takes place in the surface states o... [Phys. Rev. Lett. 113, 196601] Published Mon Nov 03, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 33
    Publikationsdatum: 2014-12-12
    Beschreibung: Author(s): Archana Kamal, Ananda Roy, John Clarke, and Michel H. Devoret A novel mechanism of asymmetric frequency conversion is investigated in nonlinear dispersive devices driven parametrically with a biharmonic pump. When the relative phase between the first and second harmonics combined in a two-tone pump is appropriately tuned, nonreciprocal frequency conversion, ei... [Phys. Rev. Lett. 113, 247003] Published Thu Dec 11, 2014
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  • 34
    Publikationsdatum: 2014-12-16
    Beschreibung: Author(s): Shu-Chun Wu, Guangcun Shan, and Binghai Yan Recently, the long-sough quantum anomalous Hall effect was realized in a magnetic topological insulator. However, the requirement of an extremely low temperature (approximately 30 mK) hinders realistic applications. Based on ab initio band structure calculations, we propose a quantum anomalous Hall ... [Phys. Rev. Lett. 113, 256401] Published Mon Dec 15, 2014
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  • 35
    Publikationsdatum: 2014-12-03
    Beschreibung: Author(s): Panagiotis Kotetes, Pei-Qing Jin, Michael Marthaler, and Gerd Schön We propose a new type of chiral metamaterial based on an ensemble of artificial molecules formed by three identical quantum dots in a triangular arrangement. A static magnetic field oriented perpendicular to the plane breaks mirror symmetry, rendering the molecules sensitive to the circular polariza... [Phys. Rev. Lett. 113, 236801] Published Tue Dec 02, 2014
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  • 36
    facet.materialart.
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    American Physical Society (APS)
    Publikationsdatum: 2014-12-04
    Beschreibung: Author(s): Arijit Kundu, H. A. Fertig, and Babak Seradjeh We develop a theory of topological transitions in a Floquet topological insulator, using graphene irradiated by circularly polarized light as a concrete realization. We demonstrate that a hallmark signature of such transitions in a static system, i.e., metallic bulk transport with conductivity of or... [Phys. Rev. Lett. 113, 236803] Published Wed Dec 03, 2014
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  • 37
    Publikationsdatum: 2014-12-04
    Beschreibung: Author(s): L. A. Yeoh, A. Srinivasan, O. Klochan, R. Winkler, U. Zülicke, M. Y. Simmons, D. A. Ritchie, M. Pepper, and A. R. Hamilton We have performed transport measurements in tilted magnetic fields in a two-dimensional hole system grown on the surface of a (311)A GaAs crystal. A striking asymmetry of Shubnikov–de Haas oscillations occurs upon reversing the in-plane component of the magnetic field along the low-symmetry [2̅ ... [Phys. Rev. Lett. 113, 236401] Published Wed Dec 03, 2014
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  • 38
    facet.materialart.
    Unbekannt
    American Physical Society (APS)
    Publikationsdatum: 2014-12-04
    Beschreibung: Author(s): Abolhassan Vaezi and Maissam Barkeshli The possibility of realizing non-Abelian statistics and utilizing it for topological quantum computation (TQC) has generated widespread interest. However, the non-Abelian statistics that can be realized in most accessible proposals is not powerful enough for universal TQC. In this Letter, we conside... [Phys. Rev. Lett. 113, 236804] Published Wed Dec 03, 2014
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  • 39
    Publikationsdatum: 2014-12-04
    Beschreibung: Author(s): F. Donati, A. Singha, S. Stepanow, C. Wäckerlin, J. Dreiser, P. Gambardella, S. Rusponi, and H. Brune We investigated the magnetic properties of individual Ho atoms adsorbed on the (111) surface of Pt, which have been recently claimed to display single ion magnetic behavior. By combining x-ray absorption spectroscopy and magnetic dichroism measurements with ligand field multiplet calculations, we re... [Phys. Rev. Lett. 113, 237201] Published Wed Dec 03, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 40
    Publikationsdatum: 2014-12-04
    Beschreibung: Author(s): Tomás Ramos, Hannes Pichler, Andrew J. Daley, and Peter Zoller We consider the nonequilibrium dynamics of a driven dissipative spin chain with chiral coupling to a one-dimensional (1D) bosonic bath, and its atomic implementation with a two-species mixture of cold quantum gases. The reservoir is represented by a spin-orbit coupled 1D quasicondensate of atoms in ... [Phys. Rev. Lett. 113, 237203] Published Wed Dec 03, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 41
    Publikationsdatum: 2014-12-04
    Beschreibung: Author(s): T. Weindler, H. G. Bauer, R. Islinger, B. Boehm, J.-Y. Chauleau, and C. H. Back Magnetic relaxation is one of the dominating features of magnetization dynamics. Depending on the magnetic structure and the experimental approach, different magnitudes of the damping parameter are reported even for a given material. In this study, we experimentally address this issue by accessing t... [Phys. Rev. Lett. 113, 237204] Published Wed Dec 03, 2014
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  • 42
    Publikationsdatum: 2014-12-04
    Beschreibung: Author(s): D. Andrew Golter, Thomas K. Baldwin, and Hailin Wang We report experimental studies of dressing an electron spin in diamond with resonant and continuous microwave fields to protect the electron spin from magnetic fluctuations induced by the nuclear spin bath. We use optical coherent population trapping (CPT) to probe the energy level structure, optica... [Phys. Rev. Lett. 113, 237601] Published Wed Dec 03, 2014
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  • 43
    Publikationsdatum: 2014-12-04
    Beschreibung: Author(s): Gabriele D’Avino and Matthieu J. Verstraete We present a theoretical investigation of the anomalous ferroelectricity of mixed-stack charge transfer molecular crystals, based on the Peierls-Hubbard model, and first-principles calculations for its parametrization. This approach is first validated by reproducing the temperature-induced transitio... [Phys. Rev. Lett. 113, 237602] Published Wed Dec 03, 2014
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  • 44
    Publikationsdatum: 2014-12-04
    Beschreibung: Author(s): A. L. Chernyshev and M. E. Zhitomirsky Selection of the ground state of the kagome-lattice XXZ antiferromagnet by quantum fluctuations is investigated by combining nonlinear spin-wave and real-space perturbation theories. The two methods unanimously favor q =0 over √ 3 ×√ 3 magnetic order in a wide range of the anisotropy parameter 0≤Δ≲0.72.... [Phys. Rev. Lett. 113, 237202] Published Wed Dec 03, 2014
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  • 45
    Publikationsdatum: 2014-12-05
    Beschreibung: Author(s): K. Tomiyasu, K. Iwasa, H. Ueda, S. Niitaka, H. Takagi, S. Ohira-Kawamura, T. Kikuchi, Y. Inamura, K. Nakajima, and K. Yamada Spin fluctuations were studied over a wide momentum (ℏQ) and energy (E) space in the frustrated d-electron heavy-fermion metal LiV 2 O 4 by time-of-flight inelastic neutron scattering. We observed the overall Q−E evolutions near the characteristic Q=0.6  Å -1   peak and found another weak broad magnetic ... [Phys. Rev. Lett. 113, 236402] Published Thu Dec 04, 2014
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  • 46
    Publikationsdatum: 2014-12-05
    Beschreibung: Author(s): M. Oltscher, M. Ciorga, M. Utz, D. Schuh, D. Bougeard, and D. Weiss The injection of spins into a high-mobility two-dimensional electron gas is unexpectedly efficient, suggesting that new theories may be needed to describe spin transport in such systems. [Phys. Rev. Lett. 113, 236602] Published Thu Dec 04, 2014
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  • 47
    Publikationsdatum: 2014-01-11
    Beschreibung: Author(s): R. B. Laughlin A 4-parameter Fermi-liquid calculation of the high-Tc cuprate phase diagram is reported. Simultaneously accounted for are the special doping densities of 5% and 16%, the d-wave functional form of the (orbital antiferromagnetic) pseudogap, the measured Tc, superconducting gap, pseudogap and superflui... [Phys. Rev. Lett. 112, 017004] Published Fri Jan 10, 2014
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  • 48
    Publikationsdatum: 2014-01-11
    Beschreibung: Author(s): S. Fujiyama, H. Ohsumi, K. Ohashi, D. Hirai, B. J. Kim, T. Arima, M. Takata, and H. Takagi The ratio of orbital (L) and spin (S) contributions to the magnetically ordered moments of a 5d transition metal oxide, Sr2IrO4 was evaluated by nonresonant magnetic x-ray diffraction. We applied an improved experimental setting that minimized the experimental error, in which we varied only the line... [Phys. Rev. Lett. 112, 016405] Published Fri Jan 10, 2014
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  • 49
    Publikationsdatum: 2014-01-11
    Beschreibung: Author(s): E. D. Mun, Gia-Wei Chern, V. Pardo, F. Rivadulla, R. Sinclair, H. D. Zhou, V. S. Zapf, and C. D. Batista We study vanadium spinels AV2O4(A=Cd,Mg) in pulsed magnetic fields up to 65 T. A jump in magnetization at μ0H≈40  T is observed in the single-crystal MgV2O4, indicating a field induced quantum phase transition between two distinct magnetic orders. In the multiferroic CdV2O4, the field induced transi... [Phys. Rev. Lett. 112, 017207] Published Fri Jan 10, 2014
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  • 50
    Publikationsdatum: 2014-01-11
    Beschreibung: Author(s): Hua Chen, Qian Niu, and A. H. MacDonald As established in the very early work of Edwin Hall, ferromagnetic conductors have an anomalous Hall conductivity contribution that cannot be attributed to Lorentz forces and therefore survives in the absence of a magnetic field. These anomalous Hall conductivities are normally assumed to be proport... [Phys. Rev. Lett. 112, 017205] Published Fri Jan 10, 2014
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  • 51
    Publikationsdatum: 2014-01-15
    Beschreibung: Author(s): Zhen Zhu, Zacharias G. Fthenakis, Jie Guan, and David Tománek We report results of ab initio electronic structure and quantum conductance calculations indicating the emergence of conduction at the surface of semiconducting carbon foams. The occurrence of new conduction states is intimately linked to the topology of the surface and not limited to foams of eleme... [Phys. Rev. Lett. 112, 026803] Published Tue Jan 14, 2014
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  • 52
    Publikationsdatum: 2014-01-15
    Beschreibung: Author(s): A. P. Higginbotham, F. Kuemmeth, M. P. Hanson, A. C. Gossard, and C. M. Marcus Multielectron spin qubits are demonstrated, and performance examined by comparing coherent exchange oscillations in coupled single-electron and multielectron quantum dots, measured in the same device. Fast (〉1  GHz) exchange oscillations with a quality factor Q∼15 are found for the multielectron ... [Phys. Rev. Lett. 112, 026801] Published Tue Jan 14, 2014
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  • 53
    Publikationsdatum: 2014-01-15
    Beschreibung: Author(s): A. Raoux, M. Morigi, J.-N. Fuchs, F. Piéchon, and G. Montambaux We study the orbital susceptibility of multiband systems with a pair of Dirac points interpolating between honeycomb and dice lattices. Despite having the same zero-field energy spectrum, these different systems exhibit spectacular differences in their orbital magnetic response, ranging from dia- to... [Phys. Rev. Lett. 112, 026402] Published Tue Jan 14, 2014
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  • 54
    Publikationsdatum: 2014-01-14
    Beschreibung: Author(s): S. Ejima, T. Kaneko, Y. Ohta, and H. Fehske Using exact numerical techniques, we investigate the nature of excitonic (electron-hole) bound states and the development of exciton coherence in the one-dimensional half-filled extended Falicov-Kimball model. The ground-state phase diagram of the model exhibits, besides band-insulator and staggered... [Phys. Rev. Lett. 112, 026401] Published Mon Jan 13, 2014
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  • 55
    Publikationsdatum: 2014-01-16
    Beschreibung: Author(s): Yusuke Nomura, Kazuma Nakamura, and Ryotaro Arita To investigate the possibility of whether electron-phonon coupling can enhance orbital fluctuations in iron-based superconductors, we develop an ab initio method to construct the effective low-energy models including the phonon-related terms. With the derived effective electron-phonon interactions a... [Phys. Rev. Lett. 112, 027002] Published Wed Jan 15, 2014
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  • 56
    Publikationsdatum: 2014-01-16
    Beschreibung: Author(s): M. Moretti Sala, S. Boseggia, D. F. McMorrow, and G. Monaco The resonant x-ray scattering (magnetic elastic, RXMS, and inelastic, RIXS) of Ir4+ at the L2,3 edges relevant to spin-orbit Mott insulators An+1IrnO3n+1 (A=Sr, Ba, etc.) are calculated using a single-ion model which treats the spin-orbit and tetragonal crystal-field terms on an equal footing. Both ... [Phys. Rev. Lett. 112, 026403] Published Wed Jan 15, 2014
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  • 57
    Publikationsdatum: 2014-01-16
    Beschreibung: Author(s): Ivan Knez, Charles T. Rettner, See-Hun Yang, Stuart S. P. Parkin, Lingjie Du, Rui-Rui Du, and Gerard Sullivan We observe edge transport in the topologically insulating InAs/GaSb system in the disordered regime. Using asymmetric current paths we show that conduction occurs exclusively along the device edge, exhibiting a large Hall signal at zero magnetic fields, while for symmetric current paths, the conduct... [Phys. Rev. Lett. 112, 026602] Published Wed Jan 15, 2014
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  • 58
    Publikationsdatum: 2014-01-16
    Beschreibung: Author(s): M. Mourigal, W. T. Fuhrman, J. P. Sheckelton, A. Wartelle, J. A. Rodriguez-Rivera, D. L. Abernathy, T. M. McQueen, and C. L. Broholm Inelastic neutron scattering at low temperatures T≤30  K from a powder of LiZn2Mo3O8 demonstrates this triangular-lattice antiferromagnet hosts collective magnetic excitations from spin-1/2 Mo3O13 molecules. Apparently gapless (Δ〈0.2  meV) and extending at least up to 2.5 meV, the low-energy magn... [Phys. Rev. Lett. 112, 027202] Published Wed Jan 15, 2014
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  • 59
    Publikationsdatum: 2014-01-16
    Beschreibung: Author(s): Mahmoud Lababidi, Indubala I. Satija, and Erhai Zhao A periodically driven quantum Hall system in a fixed magnetic field is found to exhibit a series of phases featuring anomalous edge modes with the “wrong” chirality. This leads to pairs of counter-propagating chiral edge modes at each edge, in sharp contrast to stationary quantum Hall systems. We sh... [Phys. Rev. Lett. 112, 026805] Published Wed Jan 15, 2014
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  • 60
    Publikationsdatum: 2014-01-16
    Beschreibung: Author(s): H. Kurt, K. Rode, P. Stamenov, M. Venkatesan, Y.-C. Lau, E. Fonda, and J. M. D. Coey Cubic Mn2Ga films with the half-Heusler C1b structure are grown on V (001) epitaxial films. The phase is a soft ferrimagnet, with Curie temperature TC = 225 K and magnetization Ms=280  kA m−1, equivalent to 1.65μB per formula. Adding ruthenium leads to an increase of TC up to 550 K in cubic Mn2RuxGa... [Phys. Rev. Lett. 112, 027201] Published Wed Jan 15, 2014
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  • 61
    Publikationsdatum: 2014-01-17
    Beschreibung: Author(s): Bo Yang and F. D. M. Haldane We construct model wave functions for a family of single-quasielectron states supported by the ν=1/3 fractional quantum Hall fluid. The charge e*=e/3 quasielectron state is identified as a composite of a charge-2e* quasiparticle and a −e* quasihole, orbiting around their common center of charge with... [Phys. Rev. Lett. 112, 026804] Published Thu Jan 16, 2014
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  • 62
    Publikationsdatum: 2014-01-24
    Beschreibung: Author(s): S. V. Andreev, A. A. Varlamov, and A. V. Kavokin We address, theoretically, the puzzling similarity observed in the thermodynamic behavior of independent clouds of cold dipolar excitons in coupled semiconductor quantum wells. We argue that the condensation of self-trapped exciton gas starts at the same critical temperature in all traps due to the ... [Phys. Rev. Lett. 112, 036401] Published Thu Jan 23, 2014
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  • 63
    Publikationsdatum: 2014-01-24
    Beschreibung: Author(s): S. Yang, L. Lehman, D. Poilblanc, K. Van Acoleyen, F. Verstraete, J. I. Cirac, and N. Schuch We analyze the low energy excitations of spin lattice systems in two dimensions at zero temperature within the framework of projected entangled pair state models. Perturbations in the bulk give rise to physical excitations located at the edge. We identify the corresponding degrees of freedom, give a... [Phys. Rev. Lett. 112, 036402] Published Thu Jan 23, 2014
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  • 64
    Publikationsdatum: 2014-01-24
    Beschreibung: Author(s): James J. He, T. K. Ng, Patrick A. Lee, and K. T. Law In this work, we find that Majorana fermions induce selective equal spin Andreev reflections (SESARs), in which incoming electrons with certain spin polarization in the lead are reflected as counterpropagating holes with the same spin. The spin polarization direction of the electrons of this Andreev... [Phys. Rev. Lett. 112, 037001] Published Thu Jan 23, 2014
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  • 65
    Publikationsdatum: 2014-01-23
    Beschreibung: Author(s): Fabrizio Nichele, Atindra Nath Pal, Patrick Pietsch, Thomas Ihn, Klaus Ensslin, Christophe Charpentier, and Werner Wegscheider We present transport measurements performed in InAs/GaSb double quantum wells. At the electron-hole crossover tuned by a gate voltage, a strong increase in the longitudinal resistivity is observed with increasing perpendicular magnetic field. Concomitantly with a local resistance exceeding the resis... [Phys. Rev. Lett. 112, 036802] Published Wed Jan 22, 2014
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  • 66
    Publikationsdatum: 2014-01-24
    Beschreibung: Author(s): Adina Luican-Mayer, Maxim Kharitonov, Guohong Li, Chih-Pin Lu, Ivan Skachko, Alem-Mar B. Gonçalves, K. Watanabe, T. Taniguchi, and Eva Y. Andrei We report the observation of an isolated charged impurity in graphene and present direct evidence of the close connection between the screening properties of a 2D electron system and the influence of the impurity on its electronic environment. Using scanning tunneling microscopy and Landau level spe... [Phys. Rev. Lett. 112, 036804] Published Thu Jan 23, 2014
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  • 67
    Publikationsdatum: 2014-01-11
    Beschreibung: Author(s): E. Y. Vedmedenko and D. Altwein The recent years have witnessed an emergence of the field of all-spin-based devices without any flow of charge. An ultimate goal of this scientific direction is the realization of the full spectrum of spin-based networks as in modern electronics. The concept of energy-storing elements, indispensable... [Phys. Rev. Lett. 112, 017206] Published Fri Jan 10, 2014
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  • 68
    Publikationsdatum: 2014-01-15
    Beschreibung: Author(s): S. Gattenlöhner, W.-R. Hannes, P. M. Ostrovsky, I. V. Gornyi, A. D. Mirlin, and M. Titov We explore the longitudinal conductivity of graphene at the Dirac point in a strong magnetic field with two types of short-range scatterers: adatoms that mix the valleys and “scalar” impurities that do not mix them. A scattering theory for the Dirac equation is employed to express the conductance of... [Phys. Rev. Lett. 112, 026802] Published Tue Jan 14, 2014
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  • 69
    Publikationsdatum: 2014-01-15
    Beschreibung: Author(s): J. Gorchon, J. Curiale, A. Lemaître, N. Moisan, M. Cubukcu, G. Malinowski, C. Ulysse, G. Faini, H. J. von Bardeleben, and V. Jeudy We show experimental evidence of magnetization switching in a single (Ga,Mn)(As,P) semiconducting ferromagnetic layer, attributed to a strong reduction of the magnetization and the anisotropy due to current injection. The nucleation of magnetization reversal is found to occur even in the absence of ... [Phys. Rev. Lett. 112, 026601] Published Tue Jan 14, 2014
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  • 70
    Publikationsdatum: 2014-01-23
    Beschreibung: Author(s): Julia A. Steinberg, Steve M. Young, Saad Zaheer, C. L. Kane, E. J. Mele, and Andrew M. Rappe We report on a Dirac-like Fermi surface in three-dimensional bulk materials in a distorted spinel structure on the basis of density functional theory as well as tight-binding theory. The four examples we provide in this Letter are BiZnSiO4, BiCaSiO4, BiAlInO4, and BiMgSiO4. A necessary characteristi... [Phys. Rev. Lett. 112, 036403] Published Wed Jan 22, 2014
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  • 71
    Publikationsdatum: 2014-01-23
    Beschreibung: Author(s): Jian Huang, L. N. Pfeiffer, and K. W. West In high quality updoped GaAs field-effect transistors, the two-dimensional charge carrier concentrations can be tuned to very low values similar to the density of electrons on helium surfaces. An important interaction effect, screening of the Coulomb interaction by the gate, rises as a result of the... [Phys. Rev. Lett. 112, 036803] Published Wed Jan 22, 2014
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  • 72
    Publikationsdatum: 2014-01-24
    Beschreibung: Author(s): Y. Tokunaga, Y. Taguchi, T. Arima, and Y. Tokura In a multiferroic orthoferrite Dy0.7Tb0.3FeO3, which shows electric-field-(E-)driven magnetization (M) reversal due to a tight clamping between polarization (P) and M, a gigantic effect of magnetic-field (H) biasing on P-E hysteresis loops is observed in the case of rapid E sweeping. The magnitude o... [Phys. Rev. Lett. 112, 037203] Published Thu Jan 23, 2014
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  • 73
    Publikationsdatum: 2014-01-24
    Beschreibung: Author(s): Ville F. Maisi, Dania Kambly, Christian Flindt, and Jukka P. Pekola We employ a single-charge counting technique to measure the full counting statistics of Andreev events in which Cooper pairs are either produced from electrons that are reflected as holes at a superconductor–normal-metal interface or annihilated in the reverse process. The full counting statistics c... [Phys. Rev. Lett. 112, 036801] Published Thu Jan 23, 2014
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  • 74
    Publikationsdatum: 2014-01-24
    Beschreibung: Author(s): M. Caminale, R. Moroni, P. Torelli, W. C. Lin, M. Canepa, L. Mattera, and F. Bisio We investigated the magnetic anisotropy energy of monatomic surface-step atoms in antiferromagnetic/ferromagnetic (AF/FM) epitaxial Mn/Co bilayers grown on vicinal Cu(001) surfaces. The step-induced anisotropy of the Co/Cu(001) films was quenched upon submonolayer Mn deposition, but a reentrant unia... [Phys. Rev. Lett. 112, 037201] Published Thu Jan 23, 2014
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  • 75
    Publikationsdatum: 2014-01-24
    Beschreibung: Author(s): Andrey V. Chubukov, Joseph J. Betouras, and Dmitry V. Efremov We discuss the form of the damping of magnetic excitations in a metal near a ferromagnetic instability. The paramagnon theory predicts that the damping term should have the form γ(q,Ω)∝Ω/Γ(q), with Γ(q)∝q (the Landau damping). However, the experiments on uranium metallic compounds UGe2 and UCoGe sho... [Phys. Rev. Lett. 112, 037202] Published Thu Jan 23, 2014
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  • 76
    Publikationsdatum: 2014-03-11
    Beschreibung: Author(s): Chen Fang, Matthew J. Gilbert, and B. Andrei Bernevig We study a new type of three-dimensional topological superconductor that exhibits Majorana zero modes (MZM) protected by a magnetic group symmetry, a combined antiunitary symmetry composed of a mirror reflection and time reversal. This new symmetry enhances the noninteracting topological classificat... [Phys. Rev. Lett. 112, 106401] Published Mon Mar 10, 2014
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  • 77
    Publikationsdatum: 2014-03-11
    Beschreibung: Author(s): Alexey A. Kovalev, Amrit De, and Kirill Shtengel We show that resonant coupling and entanglement between a mechanical resonator and Majorana bound states can be achieved via spin currents in a 1D quantum wire with strong spin-orbit interactions. The bound states induced by vibrating and stationary magnets can hybridize, thus resulting in spin-curr... [Phys. Rev. Lett. 112, 106402] Published Mon Mar 10, 2014
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  • 78
    facet.materialart.
    Unbekannt
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    Publikationsdatum: 2014-03-11
    Beschreibung: Author(s): A. V. Rozhkov It is well known that, generically, one-dimensional interacting fermions cannot be described in terms of a Fermi liquid. Instead, they present a different phenomenology, that of a Tomonaga-Luttinger liquid: the Landau quasiparticles are ill defined, and the fermion occupation number is continuous at... [Phys. Rev. Lett. 112, 106403] Published Mon Mar 10, 2014
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  • 79
    Publikationsdatum: 2014-03-11
    Beschreibung: Author(s): Steve Johnston, Anamitra Mukherjee, Ilya Elfimov, Mona Berciu, and George A. Sawatzky We study a model for the metal-insulator (M−I) transition in the rare-earth-element nickelates RNiO3, based upon a negative charge transfer energy and coupling to a rocksaltlike lattice distortion of the NiO6 octahedra. Using exact diagonalization and the Hartree-Fock approximation we demonstrate th... [Phys. Rev. Lett. 112, 106404] Published Mon Mar 10, 2014
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  • 80
    Publikationsdatum: 2014-03-11
    Beschreibung: Author(s): Ana Balan, Peter M. Derlet, Arantxa Fraile Rodríguez, Joachim Bansmann, Rocio Yanes, Ulrich Nowak, Armin Kleibert, and Frithjof Nolting X-ray photoemission electron microscopy combined with x-ray magnetic circular dichroism is used to study the magnetic properties of individual iron nanoparticles with sizes ranging from 20 down to 8 nm. While the magnetocrystalline anisotropy of bulk iron suggests superparamagnetic behavior in this ... [Phys. Rev. Lett. 112, 107201] Published Mon Mar 10, 2014
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  • 81
    Publikationsdatum: 2014-03-11
    Beschreibung: Author(s): Romain Vasseur, Jesper Lykke Jacobsen, and Hubert Saleur We consider the entanglement between two one-dimensional quantum wires (Luttinger liquids) coupled by tunneling through a quantum impurity. The physics of the system involves a crossover between weak and strong coupling regimes characterized by an energy scale TB, and methods of conformal field theo... [Phys. Rev. Lett. 112, 106601] Published Mon Mar 10, 2014
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  • 82
    Publikationsdatum: 2014-03-11
    Beschreibung: Author(s): Vladimir V. Mazurenko, Maria V. Valentyuk, Raivo Stern, and Alexander A. Tsirlin Han purple (BaCuSi2O6) is not only an ancient pigment, but also a valuable model material for studying Bose-Einstein condensation of magnons in high magnetic fields. Using precise low-temperature structural data and extensive density-functional calculations, we elucidate magnetic couplings in this c... [Phys. Rev. Lett. 112, 107202] Published Mon Mar 10, 2014
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  • 83
    Publikationsdatum: 2014-03-13
    Beschreibung: Author(s): J.-C. Rojas-Sánchez, N. Reyren, P. Laczkowski, W. Savero, J.-P. Attané, C. Deranlot, M. Jamet, J.-M. George, L. Vila, and H. Jaffrès Through combined ferromagnetic resonance, spin pumping, and inverse spin Hall effect experiments in Co|Pt bilayers and Co|Cu|Pt trilayers, we demonstrate consistent values of ℓsfPt=3.4±0.4  nm and θSHEPt=0.056±0.010 for the respective spin diffusion length and spin Hall angle for Pt. Our data and mo... [Phys. Rev. Lett. 112, 106602] Published Wed Mar 12, 2014
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  • 84
    Publikationsdatum: 2014-03-13
    Beschreibung: Author(s): Arti Garg, H. R. Krishnamurthy, and Mohit Randeria We demonstrate in a simple model the surprising result that turning on an on-site Coulomb interaction U in a doped band insulator leads to the formation of a half-metallic state. In the undoped system, we show that increasing U leads to a first order transition at a finite value UAF between a parama... [Phys. Rev. Lett. 112, 106406] Published Wed Mar 12, 2014
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  • 85
    Publikationsdatum: 2014-03-13
    Beschreibung: Author(s): Hui Pan, Zhenshan Li, Cheng-Cheng Liu, Guobao Zhu, Zhenhua Qiao, and Yugui Yao We find theoretically a new quantum state of matter—the valley-polarized quantum anomalous Hall state in silicene. In the presence of Rashba spin-orbit coupling and an exchange field, silicene hosts a quantum anomalous Hall state with Chern number C=2. We show that through tuning the Rashba spin-orb... [Phys. Rev. Lett. 112, 106802] Published Wed Mar 12, 2014
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  • 86
    Publikationsdatum: 2014-03-13
    Beschreibung: Author(s): M. Kobayashi, H. Niwa, Y. Takeda, A. Fujimori, Y. Senba, H. Ohashi, A. Tanaka, S. Ohya, P. N. Hai, M. Tanaka, Y. Harada, and M. Oshima The electronic structure of doped Mn in (Ga,Mn)As is studied by resonant inelastic x-ray scattering. From configuration-interaction cluster-model calculations, the line shapes of the Mn L3 resonant inelastic x-ray scattering spectra can be explained by d-d excitations from the Mn ground state domina... [Phys. Rev. Lett. 112, 107203] Published Wed Mar 12, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 87
    Publikationsdatum: 2014-03-13
    Beschreibung: Author(s): Julien Houel, Jonathan H. Prechtel, Andreas V. Kuhlmann, Daniel Brunner, Christopher E. Kuklewicz, Brian D. Gerardot, Nick G. Stoltz, Pierre M. Petroff, and Richard J. Warburton We report high resolution coherent population trapping on a single hole spin in a semiconductor quantum dot. The absorption dip signifying the formation of a dark state exhibits an atomic physicslike dip width of just 10 MHz. We observe fluctuations in the absolute frequency of the absorption dip, e... [Phys. Rev. Lett. 112, 107401] Published Wed Mar 12, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 88
    Publikationsdatum: 2014-03-14
    Beschreibung: Author(s): R. P. Singh, A. D. Hillier, B. Mazidian, J. Quintanilla, J. F. Annett, D. McK. Paul, G. Balakrishnan, and M. R. Lees We have investigated the superconducting state of the noncentrosymmetric compound Re6Zr using magnetization, heat capacity, and muon-spin relaxation or rotation (μSR) measurements. Re6Zr has a superconducting transition temperature, Tc=6.75±0.05  K. Transverse-field μSR experiments, used to probe th... [Phys. Rev. Lett. 112, 107002] Published Thu Mar 13, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 89
    Publikationsdatum: 2014-03-14
    Beschreibung: Author(s): L. V. Pourovskii, P. Hansmann, M. Ferrero, and A. Georges We show that the heavy-fermion compound CeCu2Si2 undergoes a transition between two regimes dominated by different crystal-field states. At low pressure P and low temperature T the Ce 4f electron resides in the atomic crystal-field ground state, while at high P or T, the electron occupancy and spect... [Phys. Rev. Lett. 112, 106407] Published Thu Mar 13, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 90
    Publikationsdatum: 2014-03-14
    Beschreibung: Author(s): A. V. Poshakinskiy, A. N. Poddubny, L. Pilozzi, and E. L. Ivchenko We present a theory of topological edge states in one-dimensional resonant photonic crystals with a compound unit cell. Contrary to the conventional electronic topological states, the modes under consideration are radiative; i.e., they decay in time due to the light escape through the structure boun... [Phys. Rev. Lett. 112, 107403] Published Thu Mar 13, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 91
    facet.materialart.
    Unbekannt
    American Physical Society (APS)
    Publikationsdatum: 2014-05-02
    Beschreibung: Author(s): A. S. Rodin, A. Carvalho, and A. H. Castro Neto The band structure of single-layer black phosphorus and the effect of strain are predicted using density functional theory and tight-binding models. Having determined the localized orbital composition of the individual bands from first principles, we use the system symmetry to write down the effecti... [Phys. Rev. Lett. 112, 176801] Published Thu May 01, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 92
    facet.materialart.
    Unbekannt
    American Physical Society (APS)
    Publikationsdatum: 2014-03-21
    Beschreibung: Author(s): F. Guinea and M. I. Katsnelson The conductance of ballistic graphene at the neutrality point is due to coherent electron tunneling between the leads, the so called pseudodiffusive regime. The conductance scales as a function of the sample dimensions in the same way as in a diffusive metal, despite the difference in the physical m... [Phys. Rev. Lett. 112, 116604] Published Thu Mar 20, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 93
    Publikationsdatum: 2014-05-06
    Beschreibung: Author(s): Chenhui Yan, Junwei Liu, Yunyi Zang, Jianfeng Wang, Zhenyu Wang, Peng Wang, Zhi-Dong Zhang, Lili Wang, Xucun Ma, Shuaihua Ji, Ke He, Liang Fu, Wenhui Duan, Qi-Kun Xue, and Xi Chen The surface of a topological crystalline insulator (TCI) carries an even number of Dirac cones protected by crystalline symmetry. We epitaxially grew high-quality Pb1−xSnxTe(111) films and investigated the TCI phase by in situ angle-resolved photoemission spectroscopy. Pb1−xSnxTe(111) films undergo ... [Phys. Rev. Lett. 112, 186801] Published Mon May 05, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 94
    Publikationsdatum: 2014-05-06
    Beschreibung: Author(s): Abram L. Falk, Paul V. Klimov, Bob B. Buckley, Viktor Ivády, Igor A. Abrikosov, Greg Calusine, William F. Koehl, Ádám Gali, and David D. Awschalom The electron spins of semiconductor defects can have complex interactions with their host, particularly in polar materials like SiC where electrical and mechanical variables are intertwined. By combining pulsed spin resonance with ab initio simulations, we show that spin-spin interactions in 4H-SiC ... [Phys. Rev. Lett. 112, 187601] Published Mon May 05, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 95
    Publikationsdatum: 2014-03-20
    Beschreibung: Author(s): F. Forster, G. Petersen, S. Manus, P. Hänggi, D. Schuh, W. Wegscheider, S. Kohler, and S. Ludwig Controlling coherent interaction at avoided crossings and the dynamics there is at the heart of quantum information processing. A particularly intriguing dynamics is observed in the Landau-Zener regime, where periodic passages through the avoided crossing result in an interference pattern carrying i... [Phys. Rev. Lett. 112, 116803] Published Wed Mar 19, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 96
    Publikationsdatum: 2014-03-20
    Beschreibung: Author(s): Aymeric Delteil, Wei-bo Gao, Parisa Fallahi, Javier Miguel-Sanchez, and Atac Imamoğlu Single-shot readout of individual qubits is typically the slowest process among the elementary single- and two-qubit operations required for quantum information processing. Here, we use resonance fluorescence from a single-electron charged quantum dot to read out the spin-qubit state in 800 nanoseco... [Phys. Rev. Lett. 112, 116802] Published Wed Mar 19, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 97
    Publikationsdatum: 2014-03-20
    Beschreibung: Author(s): R. Piquerel, O. Gaier, E. Bonet, C. Thirion, and W. Wernsdorfer Microwave-assisted switching of the magnetization is an efficient way to reduce the magnetic field required to reverse the magnetization of nanostructures. Here, the phase sensitivity of microwave-assisted switching of an individual cobalt nanoparticle is studied using a pump-probe technique. The pu... [Phys. Rev. Lett. 112, 117203] Published Wed Mar 19, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 98
    Publikationsdatum: 2014-04-29
    Beschreibung: Author(s): Luca de’ Medici, Gianluca Giovannetti, and Massimo Capone We show that electron- and hole-doped BaFe2As2 are strongly influenced by a Mott insulator that would be realized for half-filled conduction bands. Experiments show that weakly and strongly correlated conduction electrons coexist in much of the phase diagram, a differentiation which increases with h... [Phys. Rev. Lett. 112, 177001] Published Mon Apr 28, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 99
    Publikationsdatum: 2014-04-26
    Beschreibung: Author(s): Hiroyuki Inoue, Anna Grivnin, Nissim Ofek, Izhar Neder, Moty Heiblum, Vladimir Umansky, and Diana Mahalu We report an observation, via sensitive shot noise measurements, of charge fractionalization of chiral edge electrons in the integer quantum Hall effect regime. Such fractionalization results solely from interchannel Coulomb interaction, leading electrons to decompose to excitations carrying fractio... [Phys. Rev. Lett. 112, 166801] Published Fri Apr 25, 2014
    Schlagwort(e): Condensed Matter: Electronic Properties, etc.
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  • 100
    Publikationsdatum: 2014-04-26
    Beschreibung: Author(s): Matthew T. Bell, Joshua Paramanandam, Lev B. Ioffe, and Michael E. Gershenson We have studied the low-energy excitations in a minimalistic protected Josephson circuit which contains two basic elements (rhombi) characterized by the π periodicity of the Josephson energy. Novel design of these elements, which reduces their sensitivity to the offset charge fluctuations, has been ... [Phys. Rev. Lett. 112, 167001] Published Fri Apr 25, 2014
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