References of "Schiltz, Jang 50003012"
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See detailDeveloping and Evaluating a Computerized Adaptive Mathematical Test
Schiltz, Jang UL

in Stemmler, Mark; Lautsch, Erwin; Martinke, Dirk (Eds.) Configural Frequency Analysis (CFA) and other non-parametrical methods: Gustav A. Lienert Memorial Issue. (2008)

The theoretical basis underlying the construction of a CAT is summed up and the item response theory explained. In comparison with a classical paper-and-pencil test, the characteristics and the advantages ... [more ▼]

The theoretical basis underlying the construction of a CAT is summed up and the item response theory explained. In comparison with a classical paper-and-pencil test, the characteristics and the advantages of a CAT are exposed. After performing a thorough analysis of the data, we developed a CAT based on the responses of 3590 children to a standardized mathematical test. The software presents a great amount of flexibility and allows treating multiple-choice items, as well as items with free response options and graphical items. Some results of an empirical evaluating study are presented. We showed that qualities of power, flexibility and economy of time of the CAT do not imply the loss of the classical psychometric properties of a paper-and-pencil test; we analyze the carry-over effect between the computerized and the paper-and-pencil test situation and as well as the relations between mathematical skills and general cognitive abilities. [less ▲]

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See detailAnalysing the relationship between Biographical Events and the Current Structural Functioning of Personality (en collaboration avec L. Schiltz (CRP-Santé).
Schiltz, Lony; Schiltz, Jang UL

in Bulletin de la Société des Sciences Médicales du Grand-Duché de Luxembourg (2008), 1

We present the general structure of a multi-annual research project. Our general expectancy concerns the possibilities of arts psychotherapy as a means of launching the blocked process of subjectivation ... [more ▼]

We present the general structure of a multi-annual research project. Our general expectancy concerns the possibilities of arts psychotherapy as a means of launching the blocked process of subjectivation with people suffering from exclusion, precarity and marginalization. The research project follows a complex research design with a sequential strategy, the first part consisting in an integrated psychosocial and clinical study using a mixed methodology. We constructed special rating scales for the analysis of the data of a semi-structured biographical interview and also for the holistic interpretation of the Rotter Blank Sentences Test, separating the associations to sentences beginning with the third and first person. The correlations between two sets of variables (biographical interview and Rotter test) were computed for the total experimental group (N=206), and for clinical subgroups. We shall analyse the matrices of correlations (Spearman's Rho) with the help of optimal scaling procedures (OVERALS). The links between traumatic biographical events and responses to the 3rd, respectively 1st person items of the Rotter test are interpreted in terms of unconscious versus conscious psychological processes and allow us analysing the expression of defence mechanisms and coping strategies. The results of the study are discussed in the light of the recent traumatogenic hypothesis of borderline functioning. [less ▲]

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See detailPartial Least Squares Regression for Qualitative Variables
Schiltz, Jang UL

Scientific Conference (2007, June 01)

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See detailValue-at-risk: A practical introduction
Schiltz, Jang UL

Conference given outside the academic context (2007)

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See detailDe l’adéquation d’un test informatisé en mathématiques pour élèves à haut potentiel présentant un fléchissement scolaire à l’âge de la puberté.
Schiltz, Jang UL; Schiltz, Lony

in FAISCA journal of high abilities (2007), 12(14), 84-105

The cognitive, emotional and motivational inhibition of highly gifted underachievers has become recently a topic of interest for researchers in clinical psychology and psychopathology. In this context the ... [more ▼]

The cognitive, emotional and motivational inhibition of highly gifted underachievers has become recently a topic of interest for researchers in clinical psychology and psychopathology. In this context the authors wanted to test whether a computerized adaptive test in mathematics could help unblocking the achievement motivation of those students. The main features and principles of construction of the test are described. The results of an exploratory study which was undertaken with 123 students belonging to the second class of a secondary school, 35 of which were highly gifted, stretches the interest of the integration of a CAT into the global treatment procedures of the motivational deficit of highly gifted underachievers. [less ▲]

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See detailNuclear receptors in human immune cells: expressions and correlations
Muller, Claude P.; Schiltz, Jang UL; Turner, Jonathan D. et al

in Molecular Immunology (2007), 44

Nuclear receptors (NR) are key modulators of gene transcription. Their activity is ligand induced and modulates a large variety of tissue-specific cellular functions. However, for many NR little is known ... [more ▼]

Nuclear receptors (NR) are key modulators of gene transcription. Their activity is ligand induced and modulates a large variety of tissue-specific cellular functions. However, for many NR little is known about their role in cells of the immune system. In this study, expression patterns and distribution of 24 NR were investigated in human peripheral blood mononuclear cells.We provide the first evidence of the expression of the 12 receptors CAR, CoupTF , CoupTF , FXR, GCNF, HNF4 , PPAR / , PXR, RevErb , TR2, TR4 and TLX in highly purified CD4, CD8, CD19, CD14 cells. The expression profile of RevErb and LXR previously observed in B cell and macrophages, respectively, has been extended to CD4, CD8 and CD14 cells. Except for RAR , which was absence in any of the cells tested, our results suggest an almost ubiquitous expression of the NR in the different cell lineages of the immune system. The expression of CAR, CoupTF , FXR was also confirmed at a protein level and despite conspicuous mRNA levels of HNF4 , only low levels of this receptor were detectable in the nuclear fraction of PBMCs. Expression of the latter receptors was mostly only a fraction (4–20%) of their expression in the thyroid gland, the adrenal gland, the lung or subcutaneous adipose tissue. The Spearman rank order correlation test was performed to examine the correlation in expression between individual nuclear receptor pairs in the four cell types for several donors. Distinct correlation patterns were observed between receptor pairs in the individual cell types. In CD4 T cells four NR, GCNF, PPAR , PPAR 7 and RevErb are perfectly correlated with each other (P≥0.0167). In the other cell types correlations betweenNRpairs were more diverse, but also statistically highly significant. Interestingly, the relative expression level of a number of receptor pairs ranked identical or similar in at least three (CoupTF and PPAR / , CoupTF andHNF4 as well asROR and PXR) or four cell types (CoupTF and CoupTF , PPAR and RevErb ). Despite the variability of NR expression in immune cells, these results suggest that some of the NR may be co-regulated in human immune cells. [less ▲]

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See detailDéveloppement et évaluation d'un test mahématique adapté, administré par ordinateur
Schiltz, Jang UL

Presentation (2006, October 19)

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See detailDeveloping and evaluating a computerized adaptive mathematical test
Schiltz, Jang UL

Scientific Conference (2006, June 15)

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See detailProcess Reference Model "IT Grundschutz"
Asselborn, Jean-Claude; Dagorn, Nathalie; Niederkorn, Philippe et al

Report (2006)

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See detailNonlinear filtering with correlated noises in the case of a high signal-to-noise ratio
Schiltz, Jang UL

in International Journal of Pure & Applied Mathematics (2006), 27(3), 305-319

This paper deals with the problem of estimating a state process, the measurements of which are corrupted by an independent but correlated white noise of order ". We derive a finite dimensional filter ... [more ▼]

This paper deals with the problem of estimating a state process, the measurements of which are corrupted by an independent but correlated white noise of order ". We derive a finite dimensional filter, obtained as the solution of a stochastic differential equation which is asymptotically optimal as epsilon tends to 0. [less ▲]

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See detailÉlèves surdoués en situation d’échec scolaire. Approche multidisciplinaire de la résignation apprise.
Schiltz, Lony; Désor, Didier; Lorang, Gérard et al

Book published by Saint-Paul (2006)

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See detailProcess Reference Model "Mehari"
Asselborn, Jean-Claude; Dagorn, Nathalie; Niederkorn, Philippe et al

Report (2006)

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See detailLes différents modèles d’analyse factorielle dynamique en sciences humaines et économie.
Schiltz, Jang UL

in Bulletin de la Société des Sciences Médicales du Grand-Duché de Luxembourg (2006), (2), 187-199

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See detailRSA, pilier de la cryptographie symétrique
Schiltz, Jang UL

Presentation (2005, July 06)

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See detailIntroduction à l'analyse factorielle dynamique
Schiltz, Jang UL

Scientific Conference (2005, June 18)

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