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Gerd Ronning

Robert Jung, Martin Kukuk, Roman Liesenfeld
2020 AStA Wirtschafts- und Sozialstatistisches Archiv  
Gerd Ronning war in zahlreichen wissenschaftlichen Vereinigungen aktiv tätig.  ...  In Tübingen hat Gerd Ronning dann bis zum Eintritt in den Ruhestand 2004 geforscht und gelehrt.  ... 
doi:10.1007/s11943-020-00271-y fatcat:33e7xmxs7jbmfesgxxfp6cftva

Nachfrageanalyse für diskrete Alternativen [chapter]

Gerd Ronning
1988 Theoretische und angewandte Wirtschaftsforschung  
Juni 1987 Nachfrageanalyse für diskrete Alternativen Gerd Ronning, Konstanz Vorbemerkung Seit längerem spielen Modelle, die im Englischen als "Discrete Choice Models" bezeichnet werden, in der Mikro-Ökonometrie  ... 
doi:10.1007/978-3-642-73187-7_12 fatcat:hfskxtoykvbafbewabdxcoauee

Randomized response and the binary probit model

Gerd Ronning
2005 Economics Letters  
See, e.g. , Ronning (1991 p. 45) .  ...  See, for example, Amemiya(1985 p. 274) or Ronning (1991 p. 46 ).  ... 
doi:10.1016/j.econlet.2004.07.013 fatcat:quns4y5fozejhp65cfd5ydwara

Linear and Nonlinear Dirichlet Share Equations Models [chapter]

Gerd Ronning
2002 Contributions to Modern Econometrics  
This generalizes a result of Ronning (1989) where numerical aspects of maximum likelihood estimation are discussed, as well.  ...  For the latter approach the simple inequality involving the trigamma function ip\ * i\{x) < ail>i(ax) , x > 0, 0 < a < 1 (1-1) (see Ronning 1986 ) will be iised to show that the likelihood function is  ... 
doi:10.1007/978-1-4757-3602-1_13 fatcat:wajokikq6fcqji4zvced54lfpa

Microeconometrics and disclosure control

Winfried Pohlmeier, Gerd Ronning
2008 AStA Advances in Statistical Analysis  
Ronning and Rosemann consider the case of additive errors.  ...  See Biewen, Nolte, and Rosemann, Ronning and Rosemann, Flossmann, and Nolte, Biewen, and Ronning. Data blanking Blanking is the easiest method of disclosure limitation.  ... 
doi:10.1007/s10182-008-0093-y fatcat:6jlzq4xogvc37ci7xd7uvtvtfy

A Microeconometric Study of Travelling Behaviour [chapter]

Gerd Ronning
1989 Conceptual and Numerical Analysis of Data  
See also Ronning (1988) . The Econometric Model We consider a tourist who has to decide about a holiday trip.  ...  See Ronning (1987) . For example, purchasing power does not vary over individuals, so that Xjj is constant with respect to index i. and a now are the parameter vectors to be estimated.  ... 
doi:10.1007/978-3-642-75040-3_34 fatcat:hrl5b3cw7ze3ncp5pjuru6eu6e

CHANGES OF GERMAN SHARE PRICES -RANDOM OR NOT RANDOM?

Gerd Ronning
1975 Kyklos (Basel)  
Gerd Ronning 1. In a recent paper Conrad and Jiittner [l] analysed time series of the kind (1) where pi is the price of the j-th share at time t .  ...  Gerd Ronning Fachbereich Statistik UniversitSt Konstanz D 775 Konstanz Postfach 733 5) Our test statistics are defined symmetrically [7] while some in [l] are not which causes the differences of  ... 
doi:10.1111/j.1467-6435.1975.tb02180.x fatcat:g37xplkghzgzlooj5uj64h4wbm

Disclosure Risk from Factor Scores

Jörg Drechsler, Gerd Ronning, Philipp Bleninger
2014 Journal of Official Statistics  
It should be noted, however, that u j is not necessarily the largest characteristic value (see Ronning and Bleninger 2011 for a formal proof).  ...  As noted earlier, it can be shown that the relevant eigenvalue need not be one of the largest eigenvalues (see Ronning and Bleninger 2011 for more details) .  ... 
doi:10.2478/jos-2014-0006 fatcat:uluroxfiqnerniqnqpmxf6xt2q

Microeconometric models of tourists' destination choice

Angelika Eymann, Gerd Ronning
1997 Regional Science and Urban Economics  
Eymann and Ronning (1992) . 31 The sequence of the exogenous variables' description follows the presentation of the economic analysis.  ... 
doi:10.1016/s0166-0462(97)00006-9 fatcat:fzhuqbhj3bbrjc52hb5d3f2ijm

Existence, uniqueness and continuity of portfolio choice

Laurie Davies, Gerd Ronning
1974 Zeitschrift für Nationalökonomie  
doi:10.1007/bf01289151 fatcat:accwts6ijzfjxhhmudlqumt6eu

On the curvature of the trigamma function

Gerd Ronning
1986 Journal of Computational and Applied Mathematics  
The trigamma function #t(x) satisfies the inequality G,(x)-a+,( ax) < 0 for all x > 0 and 0 < (Z < 1. This can be viewed as a characterization of the curvature of this function,
doi:10.1016/0377-0427(86)90231-1 fatcat:li4gdfezbfdtddwcfenbur5t2q

GERD Symptoms in the General Population: Prevalence and Severity Versus Care-Seeking Patients

Erica Cohen, Roger Bolus, Dinesh Khanna, Ron D. Hays, Lin Chang, Gil Y. Melmed, Puja Khanna, Brennan Spiegel
2014 Digestive Diseases and Sciences  
We compared GERD severity between groups using the NIH PROMIS Ò GERD scale. We then performed multivariable regression to identify predictors of GERD severity.  ...  We estimated the prevalence and severity of GERD symptoms in the GP versus GI patients, and identified predictors of GERD severity.  ...  Ron D. Hays has served as a consultant to Amgen, Allergan, Pfizer, and the Critical Path Institute.  ... 
doi:10.1007/s10620-014-3181-8 pmid:24811245 pmcid:PMC4275099 fatcat:sc2i2nxi2ngb3dej2upmimljam

A Performance Management Initiative for Local Health Department Vector Control Programs

Justin Gerding, Micaela Kirshy, John W. Moran, Ron Bialek, Vanessa Lamers, John Sarisky
2016 Environmental Health Insights  
Local health department (LHD) vector control programs have experienced reductions in funding and capacity. Acknowledging this situation and its potential effect on the ability to respond to vector-borne diseases, the U.S. Centers for Disease Control and Prevention and the Public Health Foundation partnered on a performance management initiative for LHD vector control programs. The initiative involved 14 programs that conducted a performance assessment using the Environmental Public Health
more » ... mance Standards. The programs, assisted by quality improvement (QI) experts, used the assessment results to prioritize improvement areas that were addressed with QI projects intended to increase effectiveness and efficiency in the delivery of services such as responding to mosquito complaints and educating the public about vector-borne disease prevention. This article describes the initiative as a process LHD vector control programs may adapt to meet their performance management needs. This study also reviews aggregate performance assessment results and QI projects, which may reveal common aspects of LHD vector control program performance and priority improvement areas. LHD vector control programs interested in performance assessment and improvement may benefit from engaging in an approach similar to this performance management initiative.
doi:10.4137/ehi.s39805 pmid:27429555 pmcid:PMC4941868 fatcat:hc4o7fqcrjdexo2vfvglbav3su

Proteomic and transcriptomic profiling reveal different aspects of aging in the kidney [article]

Yuka Takemon, Joel M Chick, Isabela Gerdes Gyuricza, Daniel M Skelly, Oliver Devuyst, Steven Gygi, Gary A Churchill, Ron Korstanje
2020 biorxiv/medrxiv   pre-print
The kidney is an excellent model for studying organ aging. Kidney function shows steady decline with age and is easy to assay using urine or blood samples. However, little is known about the molecular changes that take place in the kidney during the aging process. In order to better understand the molecular changes that occur with age, we measured mRNA and protein levels in 188 genetically diverse mice at ages 6, 12, and 18 months. We observed distinctive change in mRNA and protein levels as a
more » ... unction of age. Changes in both mRNA and protein are associated with increased immune infiltration and decreases in mitochondrial function. Proteins show a greater extent of change and reveal changes in a wide array of biological processes including unique, organ-specific features of aging in kidney. Most importantly, we observed functionally important age-related changes in protein that occur in the absence of corresponding changes in mRNA. Our findings suggest that mRNA profiling alone provides an incomplete picture of molecular aging in the kidney and that examination of changes in proteins is essential to understand aging processes that are not transcriptionally regulated.
doi:10.1101/2020.08.27.270504 fatcat:c6myxgwxsvcnxpod6ssbemhpn4

The Effect of Microaggregation Procedures on the Estimation of Linear Models: A Simulation Study [chapter]

Matthias Schmid, Hans Schneeweiss, Winfried Pohlmeier, Gerd Ronning, Joachim Wagner
2005 Econometrics of Anonymized Micro Data  
Microaggregation is a set of procedures that distort empirical data in order to guarantee the factual anonymity of the data. At the same time the information content of data sets should not be reduced too much and should still be useful for scientific research. This paper investigates the effect of microaggregation on the estimation of a linear regression by ordinary least squares. It studies, by way of an extensive simulation experiment, the bias of the slope parameter estimator induced by
more » ... ous microaggregation techniques. Some microaggregation procedures lead to consistent estimates while others imply an asymptotic bias for the estimator. Keywords: microaggregation, disclosure control, simple linear model, bias, consistency 2. Individual ranking (Defays/Anwar 1998): Each variable is microaggregated separately. First, the data set is sorted by the first variable, and the values of this variable are microaggregated. Then, the same procedure is repeated for the second variable and so on. Again, the group size is kept fixed.
doi:10.1515/9783110507904-003 fatcat:c22msqnk5ngzndfusvvaaevtcm
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