1,511 research outputs found
Time-varying coefficient models and measurement error
No full textThis thesis is concerned with presenting and developing modeling approaches which allow for a time-varying effect of covariates by using time-varying coefficients. The different approaches are compared in simulation studies. Thereby, we investigate how well different components of the simulated models can be identified. The models performing best in the simulation study are then applied to data collected within the study "Improved Air Quality and its Influences on Short-Term Health Effects in Erfurt, Eastern Germany". One specific aspect in this analysis is to assess the necessity of a time-varying estimate compared to a more parsimonious, time-constant fit.
A further topic is the estimation of time-varying coefficient models in the presence of measurement errors in the exposure variable. We specify a measurement error model
and present methods to estimate parameters and measurement error variances of the model in the case of autocorrelated latent exposure as well as measurement errors. Furthermore,
two methods adjusting for measurement errors in the context of time-varying coefficients are developed. The first one is based on a hierarchical Bayesian model and the Bayesian error correction principle. The second method is an extension of the well-known regression calibration approach to the case of autocorrelated data. The obtained estimated true values can then be included into the main model to assess the effect of the variable of interest. Finally, the approaches are again applied to the Erfurt data
Continuous and Step-level Pay-off Functions in Public Good Games: A Conceptual Analysis
No full textConflicts between individuals’ and collective interests are ubiquitous in social life. Numerous experimental studies have investigated the resolution of such conflicts using public good games with either continuous or step-level payoff functions. A conceptual analysis using both classic game theory and social exchange theory shows that these two types of games are fundamentally different. A continuous function game is a social dilemma in that it contains a conflict between individual and collective interests whereas a step-level game is primarily a social coordination game. Thus, we conclude that one can not safely generalize results from step-level to continuous form games. Additionally, our analysis shows that the distinction between continuous and single-step games can be blurred by segmenting a continuous function into steps or adding steps to a single-step game. We identify characteristics of the payoff function that conceptually mark the transition from a dilemma to a coordination problem.
Letter from Susanne [Freitas] to the Okine Family, October 29, 1947
No full textThank you note from Susanne Freitas in San Juan Bautista, California, for the chrysanthemum flowers that the Okine's sent to her. She also mentions that she put the flowers on Mrs. Freitas' grave.The Okine Collection contains materials collected by Seiichi and Tomeyo Okine who were Issei flower growers in Whittier, California. It includes correspondence, photographs, financial documents, and a photo album. A large portion of the collection consists of family correspondence with Seiichi and Tomeyo Okine, including letters from their Nisei children, Masao and Makoto Okine, both soldiers overseas during World War II, to their Issei parents incarcerated in the Rohwer incarceration camp in McGehee, Arkansas. The correspondence also includes letters from their relatives and friends who are former incarcerees in the camps during the war and have “resettled” in Chicago, Illinois as well as letters from the Okines’ family members in Hiroshima, Japan during the Allied occupation of Japan. In addition, the collection includes a family photo album compiled by Dorothy Ai Aoki, a Nisei daughter to the Okines
Susanne M. Hoffmann discourse on observing the moon
No full textThe process of observing the moon becomes one of the important things to do. Especially in the process determining from the beginning of month kamariyah or often referred as rukyatul hilal. Where is a challenge for the observers to see a very thin moon, moreover with weather conditions that are not always bright? In addition, observing the moon at the time of eclipse can increase the faith in understanding the signs and power of Allah SWT. With regard to the presence of Susanne M. Hoffmann at Islamic Astronomy Master Program Walisongo State Islamic University, the author is very interested in examining her thoughts about observing the moon. Susanne M. Hoffmann is an expert astronomist in the history of science, physics, and didactics. She expressed the bad condition of the sky and the air in Semarang. In addition, Susanne M. Hoffmann also suggested repeating Al-Biruni observation.
This study aims to find out Susanne M. Hoffmann discourse related observing the moon and to know her suggestion to repeat Al-Biruni observation on measuring the distance between two cities. This research includes for qualitative research and includes the type of library research. Primary data is taken from in-depth interviews and documentation of Susanne M. Hoffmann’s writings, works, and photographs. While the secondary data obtained from the documentation of books, journals, and articles of others work related to research. Meanwhile, to study of Susanne M. Hoffmann discourse author uses descriptive analysis method.
The results show, that Susanne M. Hofmann discourse in observing the moon is divided into two lines. First, in response to the poor condition of the sky and air in Indonesia, or Semarang in particular, Susanne M. Hoffmann still recommends doing rukyatul hilal. Furthermore, rukyatul hilal is best to do with the naked eye than using a telescope or optical instrument. Second, about the lunar eclipse, in accordance with the field, she mastered the history of Science. Susanne M. Hoffmann was succeeding to repeat the Al-Biruni observation in measuring the distance of two cities by the lunar eclipse
GENE TECHNOLOGY AND ECONOMY
No full textCh. 1. Gene technology and economy / Susanne Lundin & Lynn Åkesson -- Ch. 2. Genetic engineering and economics: a challenge to north-south inequalities / Göte Hansson -- Ch. 3. Medical databases: the Icelandic case / Gísli Pádlsson -- Ch. 4. The commercialization of genes: a patent on breast cancer genes as a pilot case / Håkan Olsson -- Ch. 5. Are european patents an obstacle to Swedish cancer research? / Hans Henrik Lidgard -- Ch. 6. Bioeconomics: between persons and things / Lynn Åkesson -- Ch. 7. Plant breeder's rights or patents? / Arnulf Merker -- Ch. 8. The value of life / Stellan Welin -- Ch. 9. The government of genetic knowledge / Lene Koch -- Ch. 10. The body is worth investing in / Susanne Lundin -- About the author
Ehrenabend 2017: Träger des Doktorandenpreises
No full textAm Ehrenabend würdigt das Präsidium mit der Verleihung des Doktorandenpreises seine herausragenden Nachwuchswissenschaftlerinnen und Nachwuchswissenschaftler. 2017 wurden Joachim Breitner, der mittlerweile an der Universität von Pennsylvania forscht, Axel Loewe vom Institut für biomedizinische Technik und Susanne Carina Solleder vom Institut für Organische Chemie für ihre exzellenten Forschungsleistungen mit dem Doktorandenpreis ausgezeichnet
Susanne K. Langer and the Definition of Art
No full textThis essay aims to analyze the conception of a work of art in the thought of Susanne K. Langer. The author offers us a definition of art, grounded on the idea that art is the “creation of symbolic forms of human feeling”. This thesis is, in turn, constructed from a robust theory of the symbolic function of the human mind
"The poetics of everyday life": the sublime as an aesthetic force in the lyric poetry of Emily Dickinson and Annette Von Droste-Hülshohh
No full textEmily Dickinson's and Annette von Droste-Hülshoff's poetry of the everyday is transfigured by the sublime. The dissertation uses close reading to stress form, suggesting that poetic practice cannot fold into the group mind-set of much late twentieth-century feminist literary criticism which tended to analyze women's writing in isolation as symptomatic of issues pertaining to gender. The dissertation places these writers firmly in their cultural and historical contexts, establishing parallels between Dickinson's and Droste's milieus. Both authors demonstrate aspects of late-Romanticism / Biedermeier-Romanticism, a reaction or taming of early-Romantic excesses. Thus the dissertation points the direction of women's writing away from gendered formations exclusively, to broader concerns pertaining to culture and society which include but are not limited to gender contingencies.Ph.D.Includes abstractVitaIncludes bibliographical referencesby Susanne Silvia Navarr
Tagging of Biomedical Articles on CiteULike: A Comparison of User, Author and Professional Indexing
No full textThis paper examines the context of online indexing from the viewpoint of three different groups: users, authors, and professional indexers. User tags, author keywords and descriptors were collected from academic journal articles, which were both indexed in Pubmed and tagged on CiteULike, and analysed. Descriptive statistics, informetric measures, and thesaural term comparison shows that there are important differences in the use of keywords between the three groups in addition to similarities which can be used to enhance support for search and browse. While tags and author keywords were found that matched descriptors exactly, other terms which did not match but provided important expansion to the indexing lexicon were found. These additional terms could be used to enhance support for searching and browsing in article databases as well as to provide invaluable data for entry vocabulary and emergent terminology for regular updates to indexing systems. Additionally, the study suggests that tags support organisation by association to task, projects and subject while making important connections to traditional systems which classify into subject categories
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