Experimentelle Analyse des transienten Verhaltens der einlasskanalgenerierten Zylinderinnenströmung

Magdeburg, Univ., Fak. für , Diss., 2011

Deformationsbasierte Morphometrie : eine Methode zur Analyse hirnstruktureller Veränderungen

DBM, schizophrenia, morphometry, computational neuroanatomy

Soziale Repräsentationen des anthropogenen Klimawandels auf Sylt : eine explorative Analyse lokal kontextualisierter Vorstellungen von Schlüsselpersonen

Climate change, Sylt, key persons, participating groups, perception, social representations, semistructured open interview, analysis of frequency, analysis of homogenety, contextualization

Analyse der Informationsverarbeitung in CHL1-defizienten Mäusen mittels metabolischer Markierung, Expressionsstudien der Immediate-Early-Gene c-fos und arg3.1/arc sowie verhaltensbiologischer Tests

Close homolog of L1, neural cell recognition molecules, c-fos, arg3.1, arc, immediat early genes, novelty, information processing, behavioral tests

Managed Care in der Schweiz : eine empirische Analyse des Verhaltens von Allgemeinmedizinern

Managed Care, physicians' behavior, primary practice, efficiency, econometric analysis

Modellierung und empirische Analyse von Preismechanismen im Hochfrequenzbereich : eine Analyse am Beispiel der elektronischen Aktienmärkte IBIS und XETRA

Magdeburg, Univ., Fak. für Wirtschaftswiss., Diss., 2010

Regulation der IL-6-induzierten Jak/STAT Signaltransduktion : Reduktion der SOCS3 Expression durch Glukokortikoide und systembiologische Analyse der Funktion von SHP2

Magdeburg, Univ., Fak. für Naturwiss., Diss., 2012

Sektorübergreifende Analyse der Versorgung von Alkoholpatienten mit Routinedaten einer gesetzlichen Krankenkasse

Magdeburg, Univ., Medizin. Fakultät, Diss., 2008

Statistical analysis in multivariate sampling

Magdeburg, Univ., Fak. für Mathematik, Diss., 2011

Molekulargenetische Analyse des Androgenrezeptor- und DICE1-Gens beim Prostatakarzinom

Androgen receptor gene; FISH; DICE1; promoter; expression; hypermethylation; prostate cancer

Hochdurchsatz-Screeningsystem zur Objekterkennung in Mikroskop-Farbbildern im Rahmen der Analyse pflanzlicher Pathogenresistenz

Color image processing, pattern recognition, machine vision, application

Multivariate Analysis for Animal Selection in Experimental Research

Background: Several researchers seek methods for the selection of homogeneous groups of animals in experimental studies, a fact justified because homogeneity is an indispensable prerequisite for casualization of treatments. The lack of robust methods that comply with statistical and biological principles is the reason why researchers use empirical or subjective methods, influencing their results. Objective: To develop a multivariate statistical model for the selection of a homogeneous group of animals for experimental research and to elaborate a computational package to use it. Methods: The set of echocardiographic data of 115 male Wistar rats with supravalvular aortic stenosis (AoS) was used as an example of model development. Initially, the data were standardized, and became dimensionless. Then, the variance matrix of the set was submitted to principal components analysis (PCA), aiming at reducing the parametric space and at retaining the relevant variability. That technique established a new Cartesian system into which the animals were allocated, and finally the confidence region (ellipsoid) was built for the profile of the animals’ homogeneous responses. The animals located inside the ellipsoid were considered as belonging to the homogeneous batch; those outside the ellipsoid were considered spurious. Results: The PCA established eight descriptive axes that represented the accumulated variance of the data set in 88.71%. The allocation of the animals in the new system and the construction of the confidence region revealed six spurious animals as compared to the homogeneous batch of 109 animals. Conclusion: The biometric criterion presented proved to be effective, because it considers the animal as a whole, analyzing jointly all parameters measured, in addition to having a small discard rate.

EMV-Analyse am Beispiel einer Funkenerosionsanlage

EMC, EDM, spark, power electronics, modeling, radiation

Steuerliche Spendenanreize in Deutschland : eine empirische Analyse ihrer fiskalischen Effekte

Charitable giving, fiscal effect, income elasticity, income tax, marginal tax rate, price elasticity

Möglichkeiten und Grenzen des Distance Learning am Beispiel des Alberta Distance Learning Centre in Kanada : Analyse und Transfer auf den Schulkontext Sachsen-Anhalts

Distance learning, Canadian educational system, institution, medial learning, school system Saxony-Anhalt, system theory, qualitative research