196,864 research outputs found
Methodological aspects of the SAVE data set
No full textThis paper describes the general design of the SAVE survey: the design of the questionnaire, inter-viewer and interviewee motivation, and the sampling designs of the various subsamples collected in 2001 and 2003. It discusses the representativeness of the data, explains the construction of weights, and provides probit regressions to analyse potential selectivity problems. The paper finishes by discussing implications for the use of the SAVE data in various estimation procedures.
Euthoracaphis umbellulariae Essig
No full textEuthoracaphis umbellulariae (Essig) (Figs. 35–37) Thoracaphis umbellulariae Essig, 1932: 4; Takahashi, 1935: 140. Thoracaphis cinnamoniae Shinji, 1941: 1133. Euthoracaphis umbellulariae (Essig): Takahashi, 1959: 8; Hille Ris Lambers, 1966: 584; Eastop & Hille Ris Lambers, 1976: 197; Blackman & Eastop, 1994: 691; Remaudière & Remaudière, 1997: 186. Specimens examined. JAPAN: 7 apterous viviparous females, Wakayama, 26 Jan. 1958, No. E 572, on Cinnamomum japonicum, coll. M. Sorin (ZMCAS). Distribution. Japan, North America. Host plants. Cinnamomum camphora, C. camphoratum, C. japonicum, C. pedunculatum, Sassafras variifolium, Umbellularia californica. Biology. Apterae are black, covered with white wax (Essig, 1932), on the undersurface of leaves along ribs (Takahashi, 1959), often making trees sooty black (Hille Ris Lambers, 1966). Populations in California are anholocyclic (Blackman & Eastop, 1994).Published as part of Chen, Jing, Fang, Yan & Qiao, Gexia, 2009, Euthoracaphis Takahashi (Hemiptera: Aphididae: Hormaphidinae), a generic account, description of a new species from China, and a key to species, pp. 30-40 in Zootaxa 2284 on page 39, DOI: 10.5281/zenodo.19124
Household Saving in Germany:
No full textThis paper presents selected highlights drawn from the German SAVE surveys in 2001 and 2003, expanding the findings of Börsch-Supan and Essig (2003) along three lines. First, it analyses the households' assessment of their general, economic and financial well-being in the past, present and future. Second, it reports findings for the respondents' information level on, and expectations about, the public pension system. Third, it presents answers to a newly developed set of questions about risk. Specifically, it tests the reliability of the experimental question design and links self-assessed risk to respondents' financial behavior.
Item nonresponse to financial questions in household surveys: An experimental study of interviewer and mode effects
No full textWe analyze nonresponse to questions on financial items such as income and asset holdings in the SAVE survey, exploiting a controlled field experiment. As part of the SAVE study, a representative survey conducted in Germany in 2001, questions on household income and financial assets were administered using different interview modes (personal interview vs. drop-off questionnaire). The data also allow investigating the influence of interviewer characteristics on nonresponse. Our results are in line with predictions derived from models of survey response behavior that have been developed in survey research and social psychology.
Abdominaler schmerz
No full textEnglish title: Abdominal pain . Abstract published in German and EnglishAbdominalschmerzen können Ausdruck einer Vielzahl intra- und extraabdomineller Erkrankungen sein. Angesichts dieses breiten ätiologischen Spektrums gilt es, im Initialstadium der Diagnostik zielgerichtet vorzugehen, um ohne Zeitverzug die Ursache und damit letzlich die Dringlichkeit weitergehender Maßnahmen zu bestimmen. Ziel dieser Evaluation ist eine initiale risikostratifizierte Triagierung des Patienten. Im Gegensatz zu somatischen Ursachen abdominalen Schmerzes ist eine derartige kausale Therapie bei funktionellen Erkrankungen des Gastrointestinaltraktes zum gegenwärtigen Zeitpunkt nur sehr begrenzt möglich, sodass hierbei der Fokus auf eine bedarfs- und symptomadaptierte Behandlung gelegt werden soll. = Abdominal pain can result from a variety of different intra- and extra-abdominal disorders. Given the wide variety of etiological triggers for this pain, the primary task during the first stage of the diagnostic work-up is to determine as soon as possible the underlying cause and the degree of emergency. The aim of this evaluation is to adapt the therapeutic measures which are necessary for a causal treatment to the individual situation. Contrary to somatic causes of abdominal pain, the availability of such a causal therapy for functional bowel disorders is still very limited. Given this dilemma, the therapeutic focus of abdominal pain associated with these functional syndromes has to be placed on symptom-oriented treatment.J. M. Gschossmann, G. Holtmann, P. Netzer, M. Essig, B. M. Balsiger and U. Scheure
Gaze-contingent human-computer interaction in view of the midas-touch problem
No full textZöllner M, Koesling H, Essig K. Gaze-contingent human-computer interaction in view of the midas-touch problem. Perception. 2008;37(Supplement):11-11
Precautionary saving and old-age provisions: Do subjective saving motives measures work?
No full textThe literature on precautionary saving provides contradictory views on the importance of precautionary saving. The SAVE data offer the possibility to generate some of the frequently used instruments known from the literature in order to measure the extent of precautionary savings. This paper compares the influence of these instruments on long-run and short-run saving measures. In addition, SAVE contains information on a broad range of saving motives. This paper uses these short-run and long-run savings motives to describe differences in savings, saving rates and wealth accumulation.
Phenomena of perception-action-coupling in teamsports - An analysis of attention control on the basis of eye movements in soccer
No full textEssig K, Weigelt M, Berger A, Thieschäfer L, Schack T. Phenomena of perception-action-coupling in teamsports - An analysis of attention control on the basis of eye movements in soccer. In: Proc. 15th European Conference on Eye Movements. 2009: 76
Eye Tracking in Chess, Marker Stabilization
No full textKüchelmann T, Prasad M, Essig K. Eye Tracking in Chess, Marker Stabilization. Presented at the Chess Expertise by Eye Gaze and Emotion), Visit of chess grandmaster Héðinn Steingrímsson, Bielefeld
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