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  • Inorganic Chemistry  (8,002)
  • Biology
  • Ertrag
  • Hafer
  • LUNAR AND PLANETARY EXPLORATION
  • 2020-2024  (19)
  • 2010-2014  (26)
  • 1930-1934
  • 1925-1929
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  • 1
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    transcript Verlag | transcript Verlag
    Publication Date: 2024-03-22
    Description: 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.
    Keywords: 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
    Language: German
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  • 2
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    Masaryk University Press | Masaryk University
    Publication Date: 2024-04-04
    Description: 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.
    Keywords: Historical sciences ; Historyof Medicine ; health care ; Personalities ; Natural science ; Biology ; thema EDItEUR::P Mathematics and Science::PD Science: general issues::PDX History of science
    Language: Czech
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  • 3
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    Logos Verlag Berlin | Logos Verlag Berlin
    Publication Date: 2024-04-04
    Description: 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.
    Keywords: 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
    Language: German
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  • 4
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    Logos Verlag
    Publication Date: 2024-04-05
    Description: 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.
    Keywords: Science ; Life Sciences ; Biology ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences
    Language: English
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  • 5
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    Taylor & Francis | CRC Press
    Publication Date: 2023-09-12
    Description: 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.
    Keywords: 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
    Language: English
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  • 6
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    UCL Press
    Publication Date: 2024-03-23
    Description: 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.
    Keywords: 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
    Language: English
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  • 7
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    Frontiers Media SA
    Publication Date: 2024-04-04
    Description: 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
    Keywords: 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
    Language: English
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  • 8
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    Frontiers Media SA
    Publication Date: 2024-04-04
    Description: 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.
    Keywords: 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
    Language: English
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  • 9
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-05
    Description: 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.
    Keywords: QD1-999 ; Toxicology ; Chemistry ; Biology ; Material Science ; Nanofibers ; Nanotechnology ; thema EDItEUR::P Mathematics and Science::PN Chemistry
    Language: English
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  • 10
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    transcript Verlag
    Publication Date: 2021-02-10
    Description: 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.
    Keywords: 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
    Language: German
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  • 11
    Publication Date: 2024-04-05
    Description: 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.
    Keywords: QH301-705.5 ; Biology ; Natural Sciences ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences
    Language: English
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  • 12
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    Universitätsverlag Göttingen
    Publication Date: 2024-04-04
    Description: 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.
    Keywords: 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
    Language: German
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  • 13
    Publication Date: 2022-04-28
    Description: 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.
    Keywords: 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
    Language: English
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  • 14
    Publication Date: 2024-04-08
    Description: 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.
    Description: 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.
    Keywords: 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
    Language: German
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  • 15
    Publication Date: 2022-04-28
    Description: 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.
    Keywords: 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
    Language: English
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  • 16
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    Taylor & Francis | Routledge
    Publication Date: 2024-04-07
    Description: 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.
    Keywords: 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
    Language: English
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  • 17
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    Coimbra University Press
    Publication Date: 2022-01-31
    Description: 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.
    Keywords: Geography ; Chemistry ; Literature ; Geology ; Light ; Optics ; Biology ; History ; Physics
    Language: Portuguese
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  • 18
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    Logos Verlag Berlin | Logos Verlag Berlin
    Publication Date: 2024-04-05
    Description: 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.
    Keywords: 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
    Language: English
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  • 19
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    transcript Verlag | transcript Verlag
    Publication Date: 2024-03-27
    Description: 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.
    Keywords: 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
    Language: English
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  • 20
    Publication Date: 2021-05-19
    Description: 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.
    Description: Submitted
    Description: ABONDANCE
    Description: BILOGIE
    Description: Pinctada radiata
    Description: Cerastoderma glaucum
    Description: Huitre perlière
    Keywords: Abundance ; Biology ; Shellfish
    Repository Name: AquaDocs
    Type: Theses and Dissertations , Phd thesis
    Format: 170
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  • 21
    Publication Date: 2021-05-19
    Description: Instittuto Nacional de Investigaçao Pesqueira, INIP, luanda , Angola
    Description: Bachelors
    Description: Trabaho de fin cdoursado para obtençâo do grau de licenciatura em Biologica
    Description: Published
    Description: biologia marinha, fitoplâncton, limnologia, algas
    Description: marine biology, phytoplankton, algae,
    Keywords: Phytoplankton ; Nannoplankton ; Biology ; Limnology ; Algae
    Repository Name: AquaDocs
    Type: Theses and Dissertations , Bachelor thesis
    Format: 56
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  • 22
    Publication Date: 2021-05-19
    Description: A yield per recruit model has been used to compare the effects of mesh size increment on the yields and revenues of the fisheries of Cameroon under two different cases. Case 1 assumes the commercial fishery to move from the exploitation of three age-groups to two age-groups with no interactions with the artisanal fishery, whereas Case 2 takes into account these interactions. The difference in the percentage increase of yield per recruit between case 1 and case 2 is 61% at current fishing (46% and 18% yield per recruit increment in cases 1 and 2 respectively). The usually accepted long-term yield per recruit increment with increase of age at first capture (with a single non-interacting fisheries) is, in this case, cancelled out. However, the revenues increase by 72% and 63% in cases 1 and 2 respectively. Therefore the economic approach, compared with purely biological analyses, is more convincing. In general, as fisheries always interact, a single-fishery management approach should not be the rule as it is at present; management strategies should consider interactions between different fisheries and be based on their economic performances and not, as said earlier, on purely biological considerations. This is because a biological approach to fisheries management will, at best, be modified by economic factors, or, at worst, be ignored totally in favour of economic policies.
    Description: Published
    Keywords: Biology ; Fisheries ; Biological interaction ; Sciaenidae ; Fisheries development ; Fishery management ; Yield/recruit ; Commercial fisheries ; Artisanal fishing
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed , Article
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  • 23
    Publication Date: 2021-05-19
    Description: Published
    Description: Chinchard (Trachuurus trecae)
    Description: Biologie
    Keywords: Biology ; Exploitation
    Repository Name: AquaDocs
    Type: Journal Contribution , Non-Refereed , Article
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  • 24
    Publication Date: 2021-05-19
    Description: Published
    Description: langoustes
    Description: marquage
    Description: poisson
    Keywords: Lobsters ; Biology ; Ecology ; Aquatic biology
    Repository Name: AquaDocs
    Type: Journal Contribution , Non-Refereed , Article
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  • 25
    Publication Date: 2013-04-05
    Description: The technological demand to push the gigahertz (10(9) hertz) switching speed limit of today's magnetic memory and logic devices into the terahertz (10(12) hertz) regime underlies the entire field of spin-electronics and integrated multi-functional devices. This challenge is met by all-optical magnetic switching based on coherent spin manipulation. By analogy to femtosecond chemistry and photosynthetic dynamics--in which photoproducts of chemical and biochemical reactions can be influenced by creating suitable superpositions of molecular states--femtosecond-laser-excited coherence between electronic states can switch magnetic order by 'suddenly' breaking the delicate balance between competing phases of correlated materials: for example, manganites exhibiting colossal magneto-resistance suitable for applications. Here we show femtosecond (10(-15) seconds) photo-induced switching from antiferromagnetic to ferromagnetic ordering in Pr0.7Ca0.3MnO3, by observing the establishment (within about 120 femtoseconds) of a huge temperature-dependent magnetization with photo-excitation threshold behaviour absent in the optical reflectivity. The development of ferromagnetic correlations during the femtosecond laser pulse reveals an initial quantum coherent regime of magnetism, distinguished from the picosecond (10(-12) seconds) lattice-heating regime characterized by phase separation without threshold behaviour. Our simulations reproduce the nonlinear femtosecond spin generation and underpin fast quantum spin-flip fluctuations correlated with coherent superpositions of electronic states to initiate local ferromagnetic correlations. These results merge two fields, femtosecond magnetism in metals and band insulators, and non-equilibrium phase transitions of strongly correlated electrons, in which local interactions exceeding the kinetic energy produce a complex balance of competing orders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Tianqi -- Patz, Aaron -- Mouchliadis, Leonidas -- Yan, Jiaqiang -- Lograsso, Thomas A -- Perakis, Ilias E -- Wang, Jigang -- England -- Nature. 2013 Apr 4;496(7443):69-73. doi: 10.1038/nature11934.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23552945" target="_blank"〉PubMed〈/a〉
    Keywords: Biology ; Chemistry ; Circular Dichroism ; Electronics ; Iron/chemistry ; *Magnetic Phenomena ; Magnetics ; Optics and Photonics ; Photosynthesis ; *Quantum Theory ; Temperature ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 26
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    Nature Publishing Group (NPG)
    Publication Date: 2013-09-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉England -- Nature. 2013 Sep 12;501(7466):136.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24032131" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Autobiography as Topic ; Biology ; *Literature, Modern ; Physics ; *Research Personnel ; Self Concept
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 27
    Publication Date: 2023-01-12
    Description: Biological lectures given at the Marine Biological Laboratory in Woods Hole in the summer of 1895
    Description: Publications
    Keywords: Biology ; Publications
    Repository Name: Woods Hole Open Access Server
    Language: English
    Type: Text
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  • 28
    Publication Date: 2023-01-12
    Description: Biological lectures given at the Marine Biological Laboratory in Woods Hole in the summer of 1893
    Description: Publications
    Keywords: Biology ; Publications
    Repository Name: Woods Hole Open Access Server
    Language: English
    Type: Text
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  • 29
    Publication Date: 2023-01-12
    Description: Biological lectures given at the Marine Biological Laboratory in Woods Hole in the summer of 1890
    Description: Preface -- Specialization and organization, companion principles of all progress. The most important need of american biology, by C.O. Whitman -- Naturalist's occupation: 1. general survey. 2. a special problem, by C.O. Whitman -- Some problems of Annelid morphology, by E.B. Wilson -- Gastraea theory and its successors, by J.P. McMurrich -- Weismann and Maupas on the origin of death, by Edward G. Gardiner -- Evolution and heredity, by Henry Fairfield Osborn -- Relationships of the sea-spiders, by T.H. Morgon -- On caryokinesis, by S. Watase -- Ear of man: its past, present and future, by Howard Ayers -- Study of Ocean temperatures and currents, by William Libbey, Jr.
    Description: Publications
    Keywords: Biology ; Publications
    Repository Name: Woods Hole Open Access Server
    Language: English
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  • 30
    Publication Date: 2023-01-12
    Description: Biological lectures given at the Marine Biological Laboratory in Woods Hole in the summer of 1894
    Description: Publications
    Keywords: Biology ; Publications
    Repository Name: Woods Hole Open Access Server
    Language: English
    Type: Text
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  • 31
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    Marine Biological Laboratory (Woods Hole, Mass.) | Biodiversity Heritage Library
    Publication Date: 2023-01-12
    Description: Biological lectures given at the Marine Biological Laboratory in Woods Hole in the summer of 1899
    Description: Evolution of the sporophyte in the higher plants, by Douglas Houghton Campbell -- Nature of the evidence exhibited by fossil plants, and its bearing upon our knowledge of the history of plant life, by D.P. Penhallow -- Influence of inversions of temperature, ascending and descending currents of air, upon distribution, by D.T. MacDougal -- Significance of mycorrhizas, by D.T. MacDougal -- Instinct, by Edward Thorndike -- Associative processes in animals, by Edward Thorndike -- Behavior of unicellular organisms, by Herbert S. Jennings -- Blind-fishes, by Carl H. Eigenmann -- Some governing factors usually neglected in biological investigations, by Alpheus Hyatt -- On the development of color in moths and butterflies, by Alfred Goldsborough Mayer -- Physiology of secretion, by A. Mathews -- Regeneration: old and new interpretations, by T.H. Morgan -- Nuclear division in protozoa, by Gary N. Calkins -- Significance of the spiral type of cleavage and its relation to the process of differentiation, by C.M. Child -- Aims of the quantitative study of variation, by C.B. Davenport -- On the nature of the process of fertilization, by Jacques Loeb
    Description: Publications
    Keywords: Biology ; Publications
    Repository Name: Woods Hole Open Access Server
    Language: English
    Type: Text
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  • 32
    Publication Date: 2023-01-12
    Description: Biological lectures given at the Marine Biological Laboratory in Woods Hole in the summer of 1896-1897
    Description: Variations and mutations of the introduced sparrow. Passer domesticus, by Hermon C. Bumpus -- Cleavage and differentiation, by E.G. Conklin -- Centrosomes of the fertilized egg of Allolobophora foetida, by Katharine Foot -- Methods of palacontological inquiry, by W.B. Scott -- Physiology of excretion, by Arnold Graf -- Some neural terms, by Burt G. Wilder -- Classification of the North American Taxaccae and Coniferae on the basis of the stem structre, by D.P. Penhallow -- Selection of plant types for the general biology ccourse, by James Ellis Humphrey -- Rate of Cell-division and the function of the centrosome, by A.D. Mead -- Coalescence experiments upon the Lepidoptera, by Henry E. Crampton, Jr. -- Some of the functions and features of a biological station, by C.O. Whitman
    Description: Publications
    Keywords: Biology ; Publications
    Repository Name: Woods Hole Open Access Server
    Language: English
    Type: Text
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  • 33
    Publication Date: 2023-01-12
    Description: Biological lectures given at the Marine Biological Laboratory in Woods Hole in the summer of 1898
    Description: Publications
    Keywords: Biology ; Publications
    Repository Name: Woods Hole Open Access Server
    Language: English
    Type: Text
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  • 34
    Publication Date: 2021-05-19
    Description: Se incluyen en el análisis 271 trabajos publicados en diversas revistas científicas y cuyo material básico de estudio fue observado, colectado y analizado en el Caribe colombiano, pero fundamentalmente en el área de influencia directa del INVEMAR. Las contribuciones han sido publicadas en alemán (111), español (109) e inglés (51). Dichos trabajos incluyen investigaciones de carácter descriptivo (175) y analítico (96) e involucran el ambiente terrestre (91) y el acuático (180). Las regiones incluidas en loa estudios son: Parque Tayrona (84), Santa Marta (59), Ciénaga Grande (51) y otras áreas (77); y en cuanto a las ramas de la ciencias: la Biología (212), la Geología (9) y otras áreas (50).
    Description: Two hundred and seventy one works published in different scientific journals are included and whose basic study material was observed, collected and analized in the Colombian Caribbean, but basically in INVEMAR direct influence área. The contributions have been published in Germán (111), Spanish (109)and English (51). These works include research of descriptive character (175) and analitic (96), and involve land (91) and aquatic (180) environments. The regions included in the studies are the following: Tayrona Park (84), Santa Marta (59), Ciénaga Grande (51), and other arcas (77); and concerning the scientific branches: Biology (212), Geology (9) and other arcas (50).
    Description: Published
    Description: Bibliography,
    Keywords: Estuaries ; Geology ; Coastal lagoons ; Biology ; Coastal lagoons ; Estuaries ; Biology ; Geology
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 35
    Publication Date: 2021-05-19
    Description: During a 3 week study, a total of 55 individuals of the redlip blenny (Ophioblennius atlanticus) were observed for at least two 15-minute periods, and several for ten of such periods. The sizes of their territories were estimated, the color pattern of each specimen an intra and interspecific interactions were recorded. The mean territory size of the redlip blenny in the study area appeared to be greater than that of these blennies studied in Curacao and Barbados by NURSALL (1977), the difference reflecting perhaps different methods of identifying the territories or a lower density of O. atlanticus in the Santa Marta área. Territories did not appear to be as consistently defended at the study area as at Barbados/Curacao and our impression ¡s that individuals holding large territories are less likely to defend their borders. It seems possible that light colored individuals are protected by their coloration from attack by dark colored territory owners. In territorial defense the redlip blennies grabbed each other tighthy by the mouth and struggled in this position repeatedly for about 15 seconds. Interspecific antagonism was common in the present study, the redlip blennics defended their territory frequently against Eupomacentrus dorsopunicans or E. partitus.
    Description: Durante un estudio de tres semanas, un total de 5 i individuos del bií'nido Ojih'toblcnnius atlnniicur. fueron observados por lo menos durante dos períodos de 1 í minutos para cada individuo y en algunos casos hasta por 10 de estos periodos. Se estimó el área de sus respectivos territorios y se tomó notí de los patrones de coloración de cada espécimen y de las relaciones intra e interespecificas de ellos. El tamaño promedio del territorio de estos blénidos resultó ser mayor que el de los respectivos territorios estudiados por NURSALL (1977) en Curacao y Barbados. Esta diferencia posiblemente se debe a un método diferente de definir los territorios o refleja una densidad menor de la población de O. aílanticus en Santa Marta, Los territorios del área fueron defendidos con menor intensidad a como lo fueron los de Barbados/ Curacao y es nuestra impresión que individuos ocupando un territorio extenso tienden a defender sus límites en menor grado. El color claro de algunos individuos probablemente los protege de agresiones por parte de individuos de color oscuro. En el acto de defensa territorial intraespecífica, los blénidos se agarran por sus bocas y se sacuden mutuamente durante aproximadamente 15 segundos , pudiéndose repetir esti varias veces. Con frecuencia se observarondefensas de los territorios dirigidas hacia los peces doncella Eupomacentrus dorsopunicnas y E. partitus.
    Description: Published
    Keywords: Fisheries ; Biology ; Fisheries ; Biology
    Repository Name: AquaDocs
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  • 36
    Publication Date: 2021-05-19
    Description: Sícydium antillarum Grant es un gobiido abundante en las corrientes que bajan de la SierraNevada de Santa Marta (Colombia) al mar. Se estudió la población de la Quebrada Valencia y las postlarvas en las bocas de los ríos Manzanares y Gaira, entre febrero de 1987 y enero de 1988. Se presentan datos morfológicos, merísticos y morfométricos de la especie; la población desovó de mayo a diciembre, con picos máximos en junio y octubre. La proporción hembras: machos fue casi 1:1 de enero a marzo; de abril a diciembre los machos se apoderan de un territorio y se dificulta su captura, principalmente en septiembre y octubre (proporción 9:1). La fecundidad máxima fue de 91067 huevos en una hembra de 109 mm; el 25% de los ejemplares alcanzó la madurez entre 60.0 y 64.9 mm. La relación talla (mm) - peso (gr) fue: Peso = 1.039x10'6 xlongitud total 35232 . El factor de condición sufre un descenso en noviembre, después del mayor pico de desove de la estación lluviosa. Los contenidos estomacales estaban integrados por algas y bacterias; la especie es diurna, encontrándose el 100% de individuos con el estómago lleno a las 15:00 horas. Las postlarvas fueron detectadas cada mes entre agosto y diciembre, al fin del cuarto menguante; adultos y postlarvas son resistentes a condiciones de laboratorio.
    Description: Sicydium antillarum Grant is an abundant gobiidfish ¡n the streams which runfrom the Sierra Nevada de Santa Marta (Colombia) tothe sea. The population living in the Quebrada Valencia was studiedfrom February 1987 to January 1988; postlarvae were observed and collected at the mouths of the Manzanares and Gaira rivers. Morphological, meristic and morphometric data of the species are presented; the population spawned between May and December, with peaks in June and October. Sex ratios between January and March were around 1:1; males defend a territory from April to December and are more difficult to capture (mainly in September and October, when the ratios are about ninefemales per male). The highest numberof eggs (91,067) was found in a female 109 mm in íength. Twenty-five per cent of the specimens reached maturity between 60.0 and 64.9 mm. The equation relating íength (mm) and weigth (gr) is: Weígth = 1.0309xtO*6 xtotal íength 35232 . Condition factor reached a low valué in November.that is after the highest spawning peak of the rainy season. The stomach contents studied were composed of algae and bacteria; all the specimens collected at 15:00 had a full stomach, which indicates that the species is diurnal. Postlarvae were detected monthly from August top December, always related to the waning moon. Adults and postlarvae are very hardy and live well in laboratory conditions.
    Description: Published
    Keywords: Ecology ; Geographical distribution ; Reproductive behaviour ; Feeding behaviour ; Ichthyology ; Biology ; Ecology ; Ichthyology ; Geographical distribution ; Reproductive behaviour ; Feeding behaviour ; Biology ; Morphometry ; Stomach content
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  • 37
    Publication Date: 2021-05-19
    Description: Se describen 19 especies de peces colectadas en los archipiélagos coralinos de las islas del Rosario y de San Bernardo, las cuales son nuevos registros para el Caribe continental colombiano. Tres de esas especies (Ichthyapus ophioneus, Calamopteryx goslinei y Apogon leptocaulus) no habían sido colectadas antes en el Caribe sur, por lo que estos récords son nuevos para este sector del Mar de las Antillas. Se incluye información sobre aspectos biológicos y ecológicos de las especies.
    Description: 19 species of fishes coliected in the coralline archipelagos of Islas de) Rosario and San Bernardo, which are reponed for the first time for the Colombian continental Car¡bbean, are described. Three of those species (Ichtyapus ophioncus, Calamopteryx goslmei and Apogon leptocaulus) had not been collected before in the southern Caribbean, being therefore new records for this section of the Sea. Biological and ecological information about the 19 species is given as well.
    Description: Published
    Keywords: Fish ; Ecology ; Biology ; Fish ; New records ; Biology ; Ecology
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  • 38
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    In:  Journal of Agricultural Science, Volume: 149, p.33-47
    Publication Date: 2011
    Description: Verwendung eines gemischten Regressionsmodels für die Vorhersage der Kornernte unter fünf Klimaszenarien für zwei Bodentypen (sandige und lehmige Böden) und zwei Regionen in Dänemark (West Zealand und Central Jutland). KATASTER-BESCHREIBUNG: Auswirkung von Änderungen im Klima (Temperatur und Strahlung) auf die Ernteerträge von Getreide. Im Durchschnitt nehmen die Erträge unter den projizierten Klimaänderungen um 1.6-12.3% ab. Die durchschnittliche Abnahme bis 2020 beträgt 3.6% verglichen zum Jahr 1985 und 8.0% bis 2040. Die Abnahme ist für West Zealand größer als für Central Jutland und für lehmige Böden größer als für sandige Böden. KATASTER-DETAIL: Delta T (Sommer) +, dann Erträge -; Delta Sonn (Sommer, Frühling) +, dann Erträge +; Delta T (Winter) = 4,4°C, dann Erträge = max; Delta T (Winter) 〉/〈 4,4°C, dann Erträge -;
    Keywords: Dänemark ; 1992-2008, 2020, 2040 ; Ertrag ; Getreide ; Klima ; Niederschlag ; Temperatur ; Sonnenscheindauer ; Modell
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  • 39
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    In:  DGG-Proceedings, Vol. 1, No. 3, p. 1-5. DOI: 10.5288/dgg-pr-01-03-hh-2011
    Publication Date: 2011
    Description: Modifizierte Wasserhaushalts- und Ertragsmodell SIMWASER wurde genutzt, um auf der Grundlage von Klimaszenarien zukünftige Apfelerträge an der Niederelbe abzuschätzen. KATASTER-BESCHREIBUNG: ECHAM5/ OM IPCC, Szenariolauf 1, WETTREG Klimaszenarien A1B und B1, Eingang in das Regressionsmodell fanden das Vorerntejahr (*) die Sonnenscheindauer von April-Juni [Sd(04-06)*], Minimumtemperatur im November [Tn(11)*], Sonnenscheindauern im März/April [Sd(0304)] und im Mai/Juni [Sd(0506)] und die Niederschlagshöhe im Juli des Erntejahres [P07] Modellrechnungen ergeben bis zum Ende des 21.Jahrhunderts Veränderungen der phänologischen Phasen sowie der Apfelerträge.Insbesondere die signifikante Verkürzung der Periode BBCH[61-87] (p〈0.01) um 28(Szenario A1B) bzw. 19 Tage (Szenario B1) bis zum Ende des 21. Jahrhunderts ist vermutlich der maßgebliche Faktor für die signifikante Abnahme der Erträge um ca. 7 % an der Niederelbe bei sonst gleichbleibenden Rahmenbedingungen. KATASTER-DETAIL: Anomalie (yi in Prozent) der beobachteten Erträge (xoy) zum linearen Ertragstrend (xlyt) bestimmt: yi = (xoy)i / (xlyt)i Ertagsabweichung delta-y = 0.805679 + 0.00103065 Sd(04-06)* - 0.0468646 Tn11* - 0.00110369 Sd(0304) + 0.00031381 Sd(0506) - 0.00153245 P07
    Keywords: Niedersachsen ; 1973-2006 und Szenarium von 2001-2100 ; Apfel ; Ertrag ; Niederschlag ; Vegetationsperiode ; Sonnenscheindauer
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  • 40
    Publication Date: 2011
    Description: Ermittlung der Wettervariablen mit dem höchsten Risikoausgleichspotential an 13 untersuchten Standorten KATASTER-BESCHREIBUNG: Korrelation von Temperatur, Niederschlag und Sonnenscheinstungen und Zuckerertrag in Norddeutschland KATASTER-DETAIL: Korrelationskoeffizienten von 0,756 bei der Temperatur, einen Wert von -0,845 beim Niederschlag und einen Korrelationskoeffizienten bei den Sonnenstunden von 0,846
    Keywords: Norddeutschland ; 2001 - 2010 ; Zuckerrüben ; Ertrag ; Niederschlag ; Temperatur ; Sonnenscheindauer
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  • 41
    Publication Date: 2021-05-19
    Description: El objetivo de esta tesis es caracterizar las poblaciones naturales de Ulva fasciata en el sector comprendido entre los ríos Quibú y Jaimanitas al oeste de La Habana, típico de costas de emersión del Caribe Occidental, con vistas a su posible explotación. El estudio se realizó entre marzo de 1996 y enero del 2001. Los resultados más importantes permitieron comprobar que la especie U. fasciata no se distribuye de forma similar en todo este sector, en la cobertura algal intervienen de manera decisiva, el tipo de sustrato y la disponibilidad de nutrientes en el medio. Los compuestos del nitrógeno y el fósforo en el agua de mar y las diferencias en la amplitud de variación de los mismos, justifican las diferencias en la morfometría, la biomasa en pie y el estado nutricional (C, N, P) de U. fasciata y evidencia el carácter oportunista de la especie. Estas condiciones ambientales son poco variables en el tiempo, este hecho garantiza la presencia de su población, cada año, en este sector. El desarrollo de la población de U. fasciata, se favorece cuando la temperatura superficial del mar oscila entre 24ºC y 26,5ºC, los niveles de radiación global fluctúan entre 13,4 mj.m-2 y 24 mj.m-2 y acontecen precipitaciones moderadas que no exceden los 190 mm de acumulado mensual. La biomasa en pie decrece considerablemente en el verano, coincidiendo con las altas temperaturas superficiales del mar (29ºC-30ºC) y las precipitaciones intensas (〉190 mm acumulado mensual). Aunque la biomasa por unidad de área fluctúa en el tiempo, su ciclo anual tiene un patrón muy similar en todo el sector. U. fasciata tiene un contenido alto de clorofila a y b, carotenoides, proteína, carbohidratos, fibra y cenizas, así como de otros macronutrientes (Ca, Mg y K) y micronutrientes (Fe, Zn, Cr y Mn). La concentración de estos componentes manifiesta variaciones espaciales y temporales de acuerdo a los diferentes niveles de nutrifización del medio. Las concentraciones máximas de componentes en los talos coinciden con las mayores acumulaciones de biomasa en pie y acontecen en las zonas cercanas a los ríos. Esta especie posee bajo contenido de lípidos. Existen niveles altos de bacterias coliformes totales y fecales en U. fasciata, por lo que su calidad higiénico-sanitaria no siempre es buena y debe ser tratada si se desea explotar este recurso para diferentes fines.
    Description: Ulva fasciata, explotación
    Keywords: Algae ; Biology ; Algae ; Biology
    Repository Name: AquaDocs
    Type: Theses and Dissertations
    Format: 150pp.
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  • 42
    Publication Date: 2010
    Description: Mit Hilfe des Crop Growth Monitoring Systems wurden Veränderungen im simulierten potentiellen Ertrag von Kulturpflanzen und in der Biomasseproduktion beobachtet, die durch die Temperaturänderungen und Globalstrahlungsmuster hervorgerufen werden. KATASTER-BESCHREIBUNG: Die Veränderungen im potentiellen Ertrag sind geographisch unterschiedlich. In Italien und Südmitteleuropa sinkt bei mehr als drei Arten der potentielle Ertrag signifikant. In nordeuropäischen Regionen wie Großbritannien steigt das Ertragspotential mehrerer Kulturpflanzen. KATASTER-DETAIL: -
    Keywords: Europa ; 1967-2005 ; Ertrag ; Temperatur ; Globalstrahlung
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  • 43
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    In:  Climate Research, Volume 44, Issue: 1, p.55-68
    Publication Date: 2010
    Description: Entwicklung eines neuen regionalen Ernte-Models (REGCROP) zur Abschätzung von Auswirkungen des Klimas auf die regionale Ackerfruchtproduktion. Es wurden Durchläufe für 3 verschiedene Klimaszenarien und 3 typische belgische Böden (Ton, Lehm, lehmiger Sand) durchgeführt. Die Klimaauswirkungen wurden mit historischen Wetterauswirkungen verglichen. KATASTER-BESCHREIBUNG: Einfluss des Klimas (Temperatur, Niederschlag, Luftfeuchte) auf den Ertrag von Kulturpflanzen KATASTER-DETAIL: Delta T +, dann Entwicklung der Kulturpflanze + und Vegetationszeit -; Delta T + (Hitzestress) und Delta Nied - (Trockenheit), dann Ertrag (Zuckerrüben) - um 12-27% und Ertrag (Kartoffeln) - um 23-44%; Delta Nied + (Vernässung), dann Ertrag (Wintergetreide) - um 5-12%; Delta T + und günstige Dampfdruckdefizite, dann Ertrag + um 6-7%;
    Keywords: Belgien ; 1960-2008 ; Zuckerrüben ; Kartoffeln ; Ertrag ; Getreide ; Klima ; Temperatur ; Trockenheit ; Modell
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  • 44
    Publication Date: 2010-02-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, Edward O -- New York, N.Y. -- Science. 2010 Feb 12;327(5967):775. doi: 10.1126/science.327.5967.775.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20150461" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ants ; Biology ; *Ecosystem ; *Literature, Modern
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 45
    Publication Date: 2010-03-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, Jocelyn -- Regalado, Antonio -- New York, N.Y. -- Science. 2010 Mar 12;327(5971):1308-9. doi: 10.1126/science.327.5971.1308.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20223953" target="_blank"〉PubMed〈/a〉
    Keywords: Biology ; Biotechnology ; Chile ; *Disasters ; *Earthquakes ; Laboratories ; *Research ; Universities
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 46
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    Zeitschrift für anorganische Chemie 216 (1934), S. 209-222 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird die Reaktion, welche beim Glühen eines Kohlenfadens im Dampf von TiCl4, ZrCl4 oder TaCl5 (im ersteren Fall bei Anwesenheit von Wasserstoff) stattfindet, studiert, und zwar einerseits durch die Änderung des elektrischen Widerstandes des Fadens, andererseits mit Hilfe einer röntgenographischen Untersuchung der erhaltenen Produkte.
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  • 47
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    Zeitschrift für anorganische Chemie 216 (1934), S. 349-352 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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  • 48
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    Zeitschrift für anorganische Chemie 216 (1934), S. 386-390 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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  • 49
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    Zeitschrift für anorganische Chemie 217 (1934), S. 1-18 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Fluor bildet bei nicht zu hoher Temperatur mit Kohlenstoff eines jeden Ordnungsgrades eine feste Valenzverbindung der Grenzzusammensetzung CF; sie wird durch Sättigen z. B. sauerstofffreien Norits bei 280° mit Fluor von 25 mm Druck und von Graphit bei 420° mit Fluor unter 760 mm Druck erhalten. In der Verbindung sind zwischen die Basisebenen des Graphits auf je zwei C-Atome zwei Fluorionen eingebaut. Die Struktur, die physikalischen und chemischen Eigenschaften des Fluorids werden mitgeteilt. Bei höheren Temperaturen entstehen aus Norit und Graphit, und natürlich auch CF, gasförmige C-Fluoride. Ihre Bildungsweise wird klargestellt, ihre Zusammensetzung in Abhängigkeit von den Bildungsbedingungen ermittelt.
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    Zeitschrift für anorganische Chemie 217 (1934), S. 33-47 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurden die Reaktionen von Kaliumcyanid mit Alkalitetrathionat bzw. -pentathionat untersucht. Nachdem theoretisch auseinandergesetzt worden war, daß im ersten Falle die Umsetzung der Cyanwasserstoffsäure in Rhodanwasserstoffsüure nach Umwandlung von ⅓ der Saure fast zum Stillstand kommt, wurde gezeigt, daß in Gegenwart von Pufferlösungen mit ph zwischen 7 und 8 die Umsetzung quantitativ verläuft und daß es nicht nötig ist, die Reaktion in neutraler und alkalischer Lösung durch verschiedene chemische Gleichungen auszudrücken.
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    Zeitschrift für anorganische Chemie 217 (1934), S. 80-84 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 217 (1934), S. 95-104 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Durch die Verbindung von röntgenographischer und analytischer Arbeit werden selbständige eigenartige Oxydstufen von Wolframoxyden festgestellt, die nebeneinander aus 6- und 4 wertigen Wolframbausteinen bestehen.
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    Zeitschrift für anorganische Chemie 217 (1934) 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 217 (1934), S. 241-253 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 217 (1934), S. 257-271 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Die von uns untersuchten Stoffe Salol, Thymol, Benzophenon, o- und m-Kresol, Acetophenon und Guajakol lassen sich durch sorgfältiges Filtrieren ihrer unterkühlten Schmelzen durch Glasfrittenfilter geringster Porengröße als Schmelzen erhalten, die keine Neigung zur freiwilligen Kristallisation mehr aufweisen.
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    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurden die Farbenreaktionen von Cerium(3) und (4) mit Ammoniak und Pyrogallol, wie auch von Lanthan, Thorium und Titan mit Ammoniak und Pyrogallol geprüft. Andere Ionen der 3. Gruppe gaben unter gleichen Bedingungen charakteristisch gefärbte Niederschläge.
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    Zeitschrift für anorganische Chemie 217 (1934), S. 305-320 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird die Geschwindigkeit der Monobromacetet- und Thio- sulfationenreaktion ohne Salzzusatz in stark verdünnten Lösungen bzw. in verschieden konzentrierten Lösungen von NaNO3, Na2SO4, Mg(NO3)2 und MgSO4 bei 5°, 15°, 25°, 35°, 45°, 55°C gemessen. Aus diesem Versuchsmaterial ist folgendes herauszulesen: Die BRÖNSTED-DEBYE-HÜCKEL'sche Gleichung wird zwischen den Ionenstärken 0,0025 - 0,010 bei den Temperaturen 25°, 35°, 45°, 55° C befolgt.Ohne Salzzusatz bzw. in verdünnten Salzlösungen (bis zu 0,5 n. Salzkonzentration) ist der van't HOff'sche Tempraturkoeffizient beinahe unabhängig von der Ionenstärke der Lösung.In ihren konzentrierten Lösungen lassen Na2SO4 und NaNO3 den Temperaturkoeffizienten unverändert, MgSO4 und Mg(NO3)2 erhöhen ihn um 3-5%.
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    Zeitschrift für anorganische Chemie 217 (1934), S. 353-375 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Die Grundlagen des Salzfehlers bei Methylorange, Methylrot, Phenolphthalein und Kresolrot werden ermittelt, der Einfluß von Natur und Konzentration verschiedener Salze wird untersucht.
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    Zeitschrift für anorganische Chemie 217 (1934), S. 401-416 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Salzsaure und weinsaure Lösungen von Antimontrioxyd sowie solche von Antimonchlorid in gesättigter Kochsalzlösung sind schon durch Sonnenlicht in Gefäßen aus gewöhnlichem Glas photochemisch aktivierbar; sie oxydieren sich z. B. bei Gegenwart von elementarem Sauerstoff. Lösungen von Brechweinstein, von Antimontrioxyd in starker Schwefelsäure, von Antimontrichlorid in Tetrachlorkohlenstoff oder gesättigter Chlorcalciumlösung zeigen diese Erscheinung erst bei Einwirkung von Licht kürzerer Wellenlänge deutlich.
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    Zeitschrift für anorganische Chemie 218 (1934), S. 45-48 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 218 (1934), S. 111-112 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 218 (1934), S. 146-150 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Durch die vorliegenden Versuche am Roheisen ist folgendes festgestellt worden: 1Bei Temperaturen von der Größenordnung 500° findet im Laufe von 24 Stunden kein Zerfall von Fe3C statt.2Bei 600° erhöht die Belastung die Zerfallsgeschwindigkeit des Zementits, und zwar um so mehr, je größer die Belastung ist.3Bei Temperaturen um 700° und höher geht der Zerfall von Fe3C vie1 rascher vor sich. Der Einfluß der Belastung wird kleiner, und bei 800ß und höher wird dieser unmerklich.
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    Zeitschrift für anorganische Chemie 218 (1934), S. 193-200 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Es wurde die Liquiduslinie im System ZrO2-SiO2 ermittelt.
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    Zeitschrift für anorganische Chemie 218 (1934), S. 225-234 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aus der Steigerung der Löslichkeit schwerlöslicher Mg-Salze beim Zusatz von H3N wird die Größe der Ammoniakatbildung berechnet. Der chemische und der physikalische Effekt werden diskutiert und die Größe des letzten durch Bestimmung der Löslichkeit von schwerlöslichen Ba-Salzen in H3N-haltiger Lösung sowie von Mg-Salzen in verdünntem wäßrigen CH3OH untersucht.
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    Zeitschrift für anorganische Chemie 216 (1934), S. 228-240 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurde eine vergleichende Untersuchung der Graphitierung verschiedener Kohlen ausgeführt.
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    Zeitschrift für anorganische Chemie 216 (1934), S. 253-262 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 216 (1934), S. 303-304 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Zeitschrift für anorganische Chemie 216 (1934), S. 315-320 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Zeitschrift für anorganische Chemie 216 (1934), S. 367-375 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Zeitschrift für anorganische Chemie 217 (1934) 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Zeitschrift für anorganische Chemie 217 (1934), S. 157-160 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Zeitschrift für anorganische Chemie 217 (1934), S. 161-169 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Topics: Chemistry and Pharmacology
    Notes: Für das Nitrosylborfluorid wurde eine rationelle Methode zur Darstellung größerer Mengen angegeben und ein besonderes Verfahren zur Reinigung mit anschließender Vakuumsublimation ausgearbeitet. Die Dichte des reinen NOBF4 wurde zu 2,185 g · cm ·3ermittelt. Die Umsetzung des NOBF4 mit NaF wurde eingehend untersucht und darauf ein Verfahren zur Darstellung von Nitrosylfluorid aufgebaut. Die Eigenschaften des NOF wurden untersucht und ein labiles Kondensationsprodukt rnit SO2 gefunden.
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    Zeitschrift für anorganische Chemie 217 (1934), S. 203-213 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Zeitschrift für anorganische Chemie 217 (1934), S. 214-224 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Topics: Chemistry and Pharmacology
    Notes: 1In den alkalischen Plumbitlösungen sind die komplexen Hydroxoanionen [Pb(OH)3]′; [Pb(OH)4]″; [Pb(OH)6]″″ vorhanden je nach Konzentration und Temperatur der Lauge. Die Isolierung kristallisierter reiner Hydroxoplumbite scheitert infolge ihrer Zersetzlichkeit unter Abscheidung von PbO. Durch partiellen Ersatz der OH-Gruppe durch Halogen, wobei auf 1 Pb höchstens 0,5 Halogen eintreten, erreicht man besonders mit Jod eine so weitgehende Stabilisierung, daß die Darstellung definierter Halogenohydroxoplumbite gelingt, deren Zusammensetzung aus einzelnen Komponenten völlig durchsichtig ist. Mit Sicherheit treten dabei folgende Verbindungen als Teilkomponente auf : Das Auftreten von Doppelverbindungen aus 2 oder 3 Komponenten deckt sich mit dem Befund bei den reinen Halogenosalzen des zweiwertigen Bleis.
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    Zeitschrift für anorganische Chemie 217 (1934), S. 289-297 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Zeitschrift für anorganische Chemie 217 (1934), S. 298-304 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 217 (1934), S. 321-338 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 217 (1934), S. 381-384 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 217 (1934), S. 396-400 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 218 (1934), S. 16-20 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 218 (1934), S. 65-88 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurden die ferromagnetischen Legierungen des ternären Systems Eisen-Nickel-Vanadium untersucht.
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    Zeitschrift für anorganische Chemie 218 (1934), S. 49-59 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 218 (1934), S. 104-110 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Der Molwärmeverlauf von Cl2, und von Cl, der kürzlich neu berechnet worden ist, wird benutzt, um die Zerfallswärme Q0 der Chlormolekel, die chemische Konstante i (spektroskopisch, sowie aus Gleichgewichtsmessungen) und die mittleren Gleichgewichtskonstanten neu und mit Berücksichtigung aller Fehler genau zu berechnen. Es ergab sich die Zerfallswärme in vortrefflichem Einklang mit der spektroskopischen Theorie Zu: \documentclass{article}\pagestyle{empty}\begin{document}$$ U_0 = 57,1 \pm 2,1{\rm Cal}.$$\end{document} Die chemische Konstante (aus den Gleichgewichtsmessungen) dagegen stimmt bekanntlich bei Cl2, nicht zur einfachen Theorie \documentclass{article}\pagestyle{empty}\begin{document}$$ I_{{\rm gef}{\rm .}} = 2,19 \pm 0,30 \ne 1,326 = i_{{\rm theor}} . $$\end{document}.
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    Zeitschrift für anorganische Chemie 218 (1934), S. 151-160 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 218 (1934), S. 129-138 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: β,γ - Bestrahlungspigmente verschiedener Alkalisilikat- und Boratgläser wurden in Beziehung zur vorliegenden Glaskonstitution gebracht. In plötzlich gekühlten Na2O · 2SiO2-Schmelzen erschienen oberhalb 1400° adsorbierte und frei einlagernde SiO2-Formen durch schwärzliche Bestrahlungsänderungen nachweisbar. Als Ursache violetter Bestrahlungsfärbungen waren Na2SiO2 sowie Na2B2O2 zu folgern. Graufärbungen, als Bestrahlungsergebnisse, wiesen auf Silikatumsetzungen hin, die nur bei den sauersten Gläsern der benützten Schmelzreihen gelbe bis braune Silicium- bzw. Boratome reduzierten. Mitunter traten grauverdeckte Violettfärbungen auf, die bei Wärmebehandlung leicht zerstörbar sind. Es ist die Möglichkeit gegeben, daß noch weiterhin natriumangereicherte Formen, als das Monosilikat selbst, Violettfärbungen erbringen. Mit Sicherheit war zu folgern, daß Na2B4O7 nicht mehr als Ursache violetter Bestrahlungsveränderungen anzusehen ist. Da sich Borate dem Silikat angleichen, ist ähnliches Verhalten auch von Na2Si2O2 zu erwarten gewesen. Die Bestrahlungsursachen der Barytgläser konnten dermalen noch nicht sichergestellt werden.
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    Zeitschrift für anorganische Chemie 218 (1934), S. 181-189 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Der thermische Abbau der aus den Metallammoniakaten hergestellten Erdalkaliamide im Hochvakuum führt zu rotbraun gefärbten Produkten von der Zusammensetzung Me3N4· Diese Körper verhalten sich gegen verdünnte Säuren wia die normalen Nitride, nur geben sie neben zwei Molen Ammoniak ein Mol freien Stickstoff ab. Wegen dieses den Peroxyden ähnlichen Verhaltens wird die Bezeichnung „Pernitride“ vorgeschlagen.
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    Zeitschrift für anorganische Chemie 218 (1934), S. 201-209 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 218 (1934), S. 235-240 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Gleichungen, die das Gleichgewicht in H3N-haltigen Mg-Salzlösungen bestimmen, werden aufgestellt. Bestimmungen der Gleichgewichtskonzentrationen werden sorgfältig ausgeführt. Die Möglichkeit, aus derartigen Bestimmungen über die Ammoniakbildung Schlüsse zu ziehen, wird kritisch diskutiert.
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    Zeitschrift für anorganische Chemie 218 (1934), S. 267-272 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Dichte des Quarzes nimmt bei starkem Reiben um etwa 10% ab. Diese Dichteabnahme ist zurückzuführen auf die Bildung von Hohlkanälen beim Reiben, welche aber merkwürdigerweise die Oberfläche nicht erreichen. Durch die Zerteilung beim Reiben wird die Umwandlung des Quarzes behindert. Die Dichten des Cristobalits und des Quarzglases nehmen beim Reiben im Gegensatz zu der des Quarzes nicht ab, sondern urn etwa 2% zu.
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    Zeitschrift für anorganische Chemie 218 (1934), S. 301-303 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 219 (1934), S. 35-41 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 219 (1934), S. 17-34 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Ammonperborat ist in der Form seines Halbhydrates NH4B03 · ½H2O, über Trockenmitteln aufbewahrt, jahrelang ohne Trockenmittelzersetzung haltbar.
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    Zeitschrift für anorganische Chemie 219 (1934), S. 65-81 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. An reinem Rheniumhexafluorid wurden Schmelztemperatur, Dampfdruck, Dichte und chemisches Verhalten neu bestimmt.
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    Zeitschrift für anorganische Chemie 219 (1934), S. 82-86 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 219 (1934), S. 42-44 
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    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 219 (1934) 
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    Zeitschrift für anorganische Chemie 219 (1934), S. 113-118 
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    Keywords: Chemistry ; Inorganic Chemistry
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    Zeitschrift für anorganische Chemie 219 (1934), S. 119-128 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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    Zeitschrift für anorganische Chemie 219 (1934), S. 129-140 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurden die Zersetzungsdrucke im System OsS2-Os in Abhängigkeit von der Temperatur und der Zusammensetzung des Bodenkörpers untersucht.
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