1,720,956 research outputs found
Kondolenzschreiben bezüglich Max Plancks Tod von Moritz Stapff
Full text linkScan des Kondolenzschreibens an Marga Planck anlässlich des Todes von Max Planck am 4.10.1947. Mehr Informationen zu den Kondolenzen sind in Band 2 der Reihe Kieler Beiträge zu Max Planck zu finden. Eine Kurzdarstellung zu Max Planck und weitere Referenzen finden sich in Band 1
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
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
Statistical Modelling of Spatially and Spatio-Temporally Dependent Data: Some Theoretical Results and an Application
No full textThis dissertation is concerned with data exhibiting spatial and spatio-temporal dependence. It is based on three separate research works.
The first chapter contributes to the solution of an open problem in the spatial statistics literature. Concretely, we study the smoothness estimation of so-called Whittle-Matérn kernels on closed Riemannian manifolds. The smoothness of Mat´ern kernels controls, for example, optimal error bounds for kriging and posterior contraction rates in Gaussian process regression. However, it has
been an open problem whether their smoothness can always be consistently estimated. On closed Riemannian manifolds, we show that it can be consistently estimated from the maximizer(s) of the Gaussian likelihood when the underlying data stem from point evaluations of a Gaussian process and, perhaps surprisingly, even when the data comprise evaluations of a non-Gaussian process.
Moreover, we generalize a well-known equivalence of measures phenomenon related to Matérn kernels to the non-Gaussian case by using Kakutani’s theorem.
The second chapter extends this work to processes observed on the vertices of graphs. Due to increased tractability of the problem is this setting, we are able to provide more complete results. In addition, we establish connections to processes observed on smooth domains such as Riemannian manifolds. In this way, we believe that our results for processes on graphs provide additional insights for such cases as well.
The final chapter is concerned with the biogeochemical Argo data in the Southern Ocean, which aims to collect measurements of oxygen, temperature and salinity as well as other variables at varying depths in the ocean. The biogeochemical Argo data is important to improve our understanding of vital biogeochemical processes such as the biological carbon pump and air-sea CO2 exchanges, monitor changes such as ocean deoxygenation and acidification, and improve estimates of the carbon budget. We introduce and estimate a functional regression model for oxygen, temperature, and salinity data. Our model elucidates important aspects of the joint distribution of temperature, salinity, and oxygen across the entire ocean depth covered by the Argo data and new location estimates of so-called oceanographic fronts, which are of significant scientific interest in their own
right. In addition, it enables us to use the more pervasively available temperature and salinity data to recover biogeochemical data at locations where it is not observed.PhDStatisticsUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/196131/1/kortest_1.pd
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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