1,721,077 research outputs found
Replication Data for: "Difficulty of Reaching Respondents and Nonresponse Bias: Evidence from Large Government Surveys"
No full textReplication Data for: "Difficulty of Reaching Respondents and Nonresponse Bias: Evidence from Large Government Surveys
Replication Data for: "Difficulty of Reaching Respondents and Nonresponse Bias: Evidence from Large Government Surveys"
No full textReplication Data for: "Difficulty of Reaching Respondents and Nonresponse Bias: Evidence from Large Government Surveys
Postrzeganie przez dzieci miejsc kultu religijnego na terenach wiejskich Europy Środkowej: studia przypadków na pograniczu czesko-polskim i polsko-słowackim
No full textThis study focuses on the local identities of children living in rural towns of Czechia, Poland and Slovakia. Cognitive maps, drawn by elementary school students in geographically proximate municipalities near international borders, provide a means of investigating the significance of local religious sites in the minds of young people. This research successfully examines everyday interactions between the subjects and their local landscape. It seeks to highlight religious elements of local identities.The methods employed in this research present a more humanistic and qualitative approach, shedding light on the daily experiences of children in rural settings. Recognizing the inclusion and even the placement and artistic details of a religious site in a child-drawn map is a powerful way to move research “beyond the ‘officially sacred’”. The methods also allow for a blending of both passive – including a religious site in a cognitive map – and active – ranking a religious site among the top three important places – declarations of a religious element within local, territorial identity.This study demonstrates how children use elements of the local religious landscape in constructing and re-constructing their community identity. The two Slovak municipalities showed the greatest affinity for religious elements among the expressions of local identity (children’s cognitive maps). Poland’s municipalities ranked in the middle and the two Czech municipalities scored lowest in terms of religious sites being considered important to the research participants.Niniejsze opracowanie koncentruje się na badaniu lokalnej tożsamości dzieci mieszkających w małych miastach na pograniczu Czech, Polski i Słowacji. Mapy poznawcze, sporządzane przez uczniów szkół podstawowych w gminach położonych w pobliżu granic państwowych, pozwalają zbadać znaczenie lokalnych miejsc kultu religijnego w umysłach młodych ludzi. Badanie to z powodzeniem analizuje codzienne interakcje między badanymi a ich lokalnym krajobrazem. Ma na celu podkreślenie religijnych elementów tożsamości lokalnej.Metody zastosowane w badaniach prezentują bardziej humanistyczne i jakościowe podejście, rzucając światło na codzienne doświadczenia dzieci mieszkających na wsi. Mapy szczegółowej lokalizacji miejsc kultu religijnego szkicowane przez dzieci są doskonałym narzędziem na przeniesienie badań poza sferę „oficjalnie sakralną”. Metody te pozwalają również na wymieszanie na mapie elementów zarówno pasywnych (miejsca sakralne na mapie poznawczej), jak i aktywnych, zaliczających dany obiekt religijny do trzech najważniejszych preferencji elementów religijnych, w ramach lokalnej tożsamości terytorialnej.Niniejsze badanie pokazuje, w jaki sposób dzieci wykorzystują elementy lokalnego krajobrazu religijnego do konstruowania i rekonstruowania tożsamości społecznej. Dwie słowackie gminy wykazały największą sympatię do elementów religijnych. Polskie gminy uplasowały się pośrodku, a dwie czeskie gminy uzyskały najniższe oceny pod względem miejsc kultu religijnego uznanych za ważne dla uczestników badania.
Impact of structured heterogeneities on reactive two-phase porous flow
No full textTwo-phase flow through heterogeneous media leads to scale-free distributions of irregularly shaped pockets of one fluid trapped within the other. Although reactions within these fluids are often modeled at the homogeneous continuum scale, there exists no current framework for upscaling from the pore scale that accounts for the complex and scale-free geometry of the bubbles. In this paper, we apply a linear-kinetics reaction-diffusion model to characterize the steady-state chemical environment inside the irregular pockets. Using a combination of theory and invasion-percolation simulations, we derive scaling laws describing the distribution of diffusion times within bubbles. We show that chemical concentrations within the bubbles are determined by the Laplace transform of the entire distribution of diffusion times from each location. This serves as a means to compute average concentrations of reactant within a bubble of unique geometry and size. Furthermore, the overall system size imposes upper bounds on the distribution of bubble sizes, thereby imposing a system-size dependence on the statistics and average concentrations. These conclusions have profound implications for continuum models of porous reactive flow, where kinetic and equilibrium parameters are often chosen from laboratory measurements made at centimeter scales.United States. Dept. of Energy. Office of Basic Energy Sciences (Award DE-AC02-05CH11231
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
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
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