131,152 research outputs found

    Partnerschaftsdynamik und Familienentwicklung: d. interne Dynamik von Partner- u. Familiensystemen u. ihre strukturellen Bedingungen u. Folgen ; Bericht aus d. Forschungsprojekt "Generatives Verhalten in Nordrhein-Westfalen. Prozesse d. Familienentwicklung in sozialräuml. Kontexten u. Möglichkeiten ihrer Prognostizierbarkeit"

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    Simm R. Partnerschaftsdynamik und Familienentwicklung: d. interne Dynamik von Partner- u. Familiensystemen u. ihre strukturellen Bedingungen u. Folgen ; Bericht aus d. Forschungsprojekt "Generatives Verhalten in Nordrhein-Westfalen. Prozesse d. Familienentwicklung in sozialräuml. Kontexten u. Möglichkeiten ihrer Prognostizierbarkeit". IBS-Materialien. Vol 25. Bielefeld: IBS; 1987

    Encountering emotions during international fieldwork: resources to support geographical teaching and learning in higher education [online]

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    International fieldwork offers significant physical and socio-psychological challenges as well as opportunities. Students are confronted with unfamiliar environments, mild culture shock, challenging physical and climatic conditions, the stresses of group work and intensity of field presentations, or fatigue during field trips. Such challenges may affect students' resilience to cope with the demands as well as opportunities encountered doing the field trip. As tutors, we must not underestimate nor ignore how fieldwork can influence the affective domain of students or indeed staff (Marvell & Simm, 2018). However, pedagogic trends such as inquiry-led primary research (cf. McGuinness and Simm, 2005) or engaging with the emotional geographies of a place (cf. Simm and Marvell, 2015) result in new sets of challenges for students and staff. As tutors, we need to be mindful that developing new pedagogic and power relations through innovative pedagogies do not deliberately or inadvertently burden students with additional stresses that may compromise students’ resilience to cope with challenges in-the-field. In this paper, the authors reflect on their combined 50 years of international fieldwork experiences to identify how and why students' emotional resilience can be compromised during fieldwork, examine some of the potential causes and, using the lessons gained from hindsight, suggest strategies for proactively as well as reactively responding to issues. We examine how an understanding of emotional intelligence can help to structure, support and resolve issues that arise during international fieldwork. We conclude that not only must field tutors carefully monitor and facilitate emotional resilience amongst our students, but tutors also need to be aware of how their own emotions and experiences affect students' experiences and behaviour on field trips. Being aware of the risks and providing a supportive framework are essential, but we also need to challenge students, which in turn helps to develop greater emotional resilience and to present them with potentially transformative experiences

    MeSH term explosion and author rank improve expert recommendations

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    Information overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank

    Integer moments of complex wish art matrices and Hurwitz numbers

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    We give formulae for the cumulants of complex Wishart (LUE) and inverse Wishart matrices (inverse LUE). Their large-N expansions are generating functions of double (strictly and weakly) monotone Hurwitz numbers which count constrained factorisations in the symmetric group. The two expansions can be compared and combined with a duality relation proved in [F. D. Cunden, F. Mezzadri, N. O’Connell, and N. J. Simm, Moments of random matrices and hypergeometric orthogonal polynomials, Comm. Math. Phys. 369 (2019), no. 3, 1091–1145] to obtain: I) a combinatorial proof of the reflection formula between moments of LUE and inverse LUE at genus zero and, ii) a new functional relation between the generating functions of monotone and strictly monotone Hurwitz numbers. The main result resolves the integrality conjecture formulated in [F. D. Cunden, F. Mezzadri, N. J. Simm, and P. Vivo, Correlators for the Wigner–Smith time-delay matrix of chaotic cavities, J. Phys. A 49 (2016), no. 18, 18LT01, 20 pp] on the time-delay cumulants in quantum chaotic transport. The precise combinatorial description of the cumulants given here may cast new light on the concordance between random matrix and semiclassical theories

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    "Closing the R&D Gap, Evaluating the Sources of R&D Spending"

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    Both spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.

    A. D. Fricke, author

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    Black and white photograph of author, A. D. Fricke

    Distribution and evolution of stable single α-helices (SAH domains) in myosin motor proteins.

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    Stable single-alpha helices (SAHs) are versatile structural elements in many prokaryotic and eukaryotic proteins acting as semi-flexible linkers and constant force springs. This way SAH-domains function as part of the lever of many different myosins. Canonical myosin levers consist of one or several IQ-motifs to which light chains such as calmodulin bind. SAH-domains provide flexibility in length and stiffness to the myosin levers, and may be particularly suited for myosins working in crowded cellular environments. Although the function of the SAH-domains in human class-6 and class-10 myosins has well been characterised, the distribution of the SAH-domain in all myosin subfamilies and across the eukaryotic tree of life remained elusive. Here, we analysed the largest available myosin sequence dataset consisting of 7919 manually annotated myosin sequences from 938 species representing all major eukaryotic branches using the SAH-prediction algorithm of Waggawagga, a recently developed tool for the identification of SAH-domains. With this approach we identified SAH-domains in more than one third of the supposed 79 myosin subfamilies. Depending on the myosin class, the presence of SAH-domains can range from a few to almost all class members indicating complex patterns of independent and taxon-specific SAH-domain gain and loss

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods
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