1,721,603 research outputs found
The Ryle Marital Patterns Test as a predictor of symptoms of anxiety and depression in couples in the community
No full textThe associations between marital relationships, as measured by the Ryle Marital Patterns Test, and symptoms of anxiety and depression as measured by the Interval General Health Questionnaire (I-GHQ), were assessed in 98 married couples in the community. Logistic regression analyses showed that symptoms of anxiety and depression in wives were best predicted by low ratings of affection exchange. Occupational class interacted with husbands' affection ratings, suggesting that in the nonmanual class only lower affection ratings were significantly associated with more symptoms. Anxiety in men was best predicted by low affection ratings while depression was best predicted by unemployment, by an affection discrepancy score indicating that more affection is given than received, and by a marriage which was rated as relatively more wife-dominated by wives and as relatively more husband-dominated by husbands
Nilpotent matrices and the minus partial order
Full text link[EN] In this paper, {1}-inverses of a nilpotent matrix as well as matrices above a given nilpotent matrix under the minus partial order are characterized.This paper was partially supported by Universidad Nacional de La Pampa, Facultad de Ingenieria (Grant Resol. No 155/14). The third author was partially supported by Ministerio de Economia y Competitividad of Spain (Grant number DGI MTM2013-43678-P and Grant Red de Excelencia MTM2015-68805-REDT).Gareis, MI.; Lattanzi, M.; Thome, N. (2017). Nilpotent matrices and the minus partial order. Quaestiones Mathematicae. 40(4):519-525. https://doi.org/10.2989/16073606.2017.1300612S51952540
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Cosmological constraints on neutrino self-interactions with a light mediator
No full textIf active neutrinos undergo nonstandard ("secret") interactions (NSνIs), the cosmological evolution of the neutrino fluid might be altered, leaving an imprint in cosmological observables. We use the latest publicly available CMB data from Planck to constrain NSνIs inducing ν-ν scattering, under the assumption that the mediator φ of the secret interaction is very light. We find that the effective coupling constant of the interaction, geff4σv©Tν2, is constrained at <2.35×10-27 (95% Credible Interval), which strengthens to geff4<1.64×10-27 when Planck nonbaseline small-scale polarization is considered. Our findings imply that after decoupling at T≃1 MeV, cosmic neutrinos are free-streaming at redshifts z>3800, or z>2300 if small-scale polarization is included. These bounds are only marginally improved when data from geometrical expansion probes are included in the analysis to complement Planck. We also find that the tensions between CMB and low-redshift measurements of the expansion rate H0 and the amplitude of matter fluctuations σ8 are not significantly reduced. Our results are independent of the underlying particle physics model as long as φ is very light. Considering a model with Majorana neutrinos and a pseudoscalar mediator, we find that the coupling constant g of the secret interaction is constrained at 7×10-7. By further assuming that the pseudoscalar interaction comes from a dynamical realization of the seesaw mechanism, as in Majoron models, we can bound the scale of lepton number breaking vσ as (1.4×106)mν
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
- …
