449 research outputs found
Timsit (M.), Meessen-Gilot (F.) et Donnay-Richelle (J.). — Test de Rorschach avec épreuve graphique chez seize dessinateurs-illustrateurs. Ps. fr., 1983, n° 2, pp. 164-180
No full textTimsit (M.), Meessen-Gilot (F.) et Donnay-Richelle (J.). — Test de Rorschach avec épreuve graphique chez seize dessinateurs-illustrateurs. Ps. fr., 1983, n° 2, pp. 164-180. In: Bulletin de psychologie, tome 40 n°379, 1987. Psychologie sociale. p. 404
Gauduchon-Tod structures, Sim holonomy and de Sitter supergravity
No full textSolutions of five-dimensional De Sitter supergravity admitting Killing spinors are considered, using spinorial geometry techniques. It is shown that the null solutions are defined in terms of a one parameter family of 3-dimensional constrained Einstein-Weyl spaces called Gauduchon-Tod structures. They admit a geodesic, expansion-free, twist-free and shear-free null vector field and therefore are a particular type of Kundt geometry. When the Gauduchon-Tod structure reduces to the 3-sphere, the null vector becomes recurrent, and therefore the holonomy is contained in Sim(3), the maximal proper subgroup of the Lorentz group SO(4,1). For these geometries, all scalar invariants built from the curvature are constant. Explicit examples are discussed. © SISSA 2009.Brannlund J, 2008, CLASSICAL QUANT GRAV, V25, DOI 10.1088-0264-9381-25-19-195007; Cacciatori SL, 2007, J HIGH ENERGY PHYS; Calderbank DMJ, 2001, DIFFER GEOM APPL, V14, P199, DOI 10.1016-S0926-2245(01)00037-7; Cardoso V, 2004, PHYS REV D, V70, DOI 10.1103-PhysRevD.70.024002; Cohen AG, 2006, PHYS REV LETT, V97, DOI 10.1103-PhysRevLett.97.021601; Coley A, 2009, CLASSICAL QUANT GRAV, V26, DOI 10.1088-0264-9381-26-10-105016; Coley A, 2009, CLASSICAL QUANT GRAV, V26, DOI 10.1088-0264-9381-26-12-125011; Coley AA, 2008, CLASSICAL QUANT GRAV, V25, DOI 10.1088-0264-9381-25-14-145017; Dunajski M, 2001, DIFFER GEOM APPL, V14, P39, DOI 10.1016-S0926-2245(00)00037-1; Gauduchon P, 1998, J GEOM PHYS, V25, P291, DOI 10.1016-S0393-0440(97)00032-6; GAUDUCHON P, 1984, MATH ANN, V267, P495, DOI 10.1007-BF01455968; Gauntlett JP, 2003, CLASSICAL QUANT GRAV, V20, P4587, DOI 10.1088-0264-9381-20-21-005; Gauntlett JP, 2003, PHYS REV D, V68, DOI 10.1103-PhysRevD.68.105009; Gauntlett JP, 2004, PHYS REV D, V70, DOI 10.1103-PhysRevD.70.089901; Gibbons GW, 2007, PHYS REV D, V76, DOI 10.1103-PhysRevD.76.081701; Gibbons GW, 2008, CLASSICAL QUANT GRAV, V25, DOI 10.1088-0264-9381-25-12-125015; Gillard J, 2005, CLASSICAL QUANT GRAV, V22, P1033, DOI 10.1088-0264-9381-22-6-009; Gran U, 2007, J HIGH ENERGY PHYS; Gran U, 2008, J HIGH ENERGY PHYS; Gran U, 2005, CLASSICAL QUANT GRAV, V22, P2453, DOI 10.1088-0264-9381-22-12-010; Gran U, 2007, J HIGH ENERGY PHYS; Gran U, 2007, J HIGH ENERGY PHYS; Grover J, 2009, AIP CONF PROC, V1122, P129, DOI 10.1063-1.3141231; Grover J, 2008, J HIGH ENERGY PHYS; Grover J, 2009, NUCL PHYS B, V809, P406, DOI 10.1016-j.nuclphysb.2008.08.024; GUTOWSKI JB, ARXIV09030179; JONES PE, 1985, CLASSICAL QUANT GRAV, V2, P565, DOI 10.1088-0264-9381-2-4-021; KUNDT W, 1961, Z PHYS, V163, P77, DOI 10.1007-BF01328918; LUKIERSKI J, 1985, PHYS LETT B, V151, P382, DOI 10.1016-0370-2693(85)91659-4; Meessen P, 2009, J HIGH ENERGY PHYS, DOI 10.1088-1126-6708-2009-05-042; Nariai H., 1950, Science Reports of the Tohoku University, First Series, V34; Nariai H., 1951, Science Reports of the Tohoku University, First Series, V35; PILCH K, 1985, COMMUN MATH PHYS, V98, P105, DOI 10.1007-BF01211046; Podolsky J, 2009, CLASSICAL QUANT GRAV, V26, DOI 10.1088-0264-9381-26-10-105008; Skenderis K, 2006, PHYS REV LETT, V96, DOI 10.1103-PhysRevLett.96.191301; STEPHANI H, 2003, EXACT SOLUTIONS EINS, pCH31; TOD KP, 1992, J LOND MATH SOC, V45, P34114151
A weighted position value
No full textWe provide a generalization of the position value (Meessen 1988) that allows players to benefit from transfers of worth by investing in communication links. The player who invests the most in a communication link obtains transfers of worth from the second one. We characterize this new allocation rule on the class of cycle free graphs by means of four axioms. The first two axioms, component efficiency and superfluous link property, are used to characterize the position value (Meessen (1988), Borm, Owen, and Tijs (1992)). Quasi-additivity is a weak version of the standard additivity axiom. The weighting axiom captures the fact that the allocation of players should be increasing with their level of investment.Weighted position value; Monotonicity
Grenzlinien: Die Schranken zulässiger richterlicher Rechtsschöpfung in Amerika
No full textEröffnungsworte: Dekan Prof. Dr. Hinrich Rüping ; Grußwort: Universitätspräsident Prof. Dr. Josef Becker ; Laudatio: Prof. Dr. Karl M. Meessen ; Ruggero J. Aldisert: Grenzlinien: Die Schranken zulässiger richterlicher Rechtsschöpfung in Amerik
Output-based payment to boost staff productivity in public health centres: contracting in Kabutare district, Rwanda
No full textOBJECTIVE: In many low-income countries, public health systems do not meet the needs and demands of the population. We aimed to assess the extent to which output-based payment could boost staff productivity at health care facilities. METHODS: We assessed the performance of 15 health care centres in Kabutare, Rwanda, comparing productivity in 2001, when fixed annual bonuses were paid to staff, with that in 2003, when an output-based payment incentive scheme was implemented. FINDINGS: Changes to the structure of contracts were associated with improvements in health centre performance: specifically, output-based performance contracts induced sharp increases in the productivity of health staff. CONCLUSION: Institutional configurations of health care organizations deserve more attention. Those currently in place in the public sector may not the most suitable to meet current challenges in health care. More experiments are needed to confirm these early results from Rwanda and elsewhere, since risks associated with output-based incentive schemes should not be ignored
Osteopontin as Candidate Biomarker of Coronary Disease despite Low Cardiovascular Risk: Insights from CAPIRE Study
No full textStratification according high cardiovascular (CV) risk categories, still represents a clinical challenge. In this analysis of the CAPIRE study (NCT02157662), we investigate whether inflammation could fit between CV risk factors (RFs) and the presence of coronary artery disease (CAD). In total, 544 patients were included and categorized according with the presence of CAD and CV risk factor burden (low/multiple). The primary endpoint was to verify any independent association of neutrophil-related biomarkers with CAD across CV risk categories. The highest values of osteo-pontin (OPN) were detected in the low RF group and associated with CAD (23.2 vs. 19.4 ng/mL; p = 0.001), although no correlation with plaque extent and/or composition were observed. Con-versely, myeloperoxidase (MPO) and resistin did not differ by CAD presence. Again, OPN was identified as independent variable associated with CAD but only in the low RF group (adjOR 8.42 [95% CI 8.42–46.83]; p-value = 0.015). As an ancillary finding, a correlation linked OPN with the neutrophil degranulation biomarker MPO (r = 0.085; p = 0.048) and resistin (r = 0.177; p = 3.4 × 10−5 ). In the present study, OPN further strengthens its role as biomarker of CAD, potentially bridging subclinical CV risk with development of atherosclerosis
An overview of the ATLAS High Level Trigger Dataflow and Supervision.
No full textThe ATLAS high-level trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the event filter (EF). The LVL2 trigger performs event selection with optimized algorithms using selected data guided by Region of Interest pointers provided by the LVL1 trigger. Those events selected by LVL2 are built into complete events, which are passed to the EF for a further stage of event selection and classification using off-line algorithms. Events surviving the EF selection are passed for off-line storage. The two stages of HLT are implemented on processor farms. The concept of distributing the selection process between LVL2 and EF is a key element in the architecture, which allows it to be flexible to changes (luminosity, detector knowledge, background conditions, etc.) Although there are some differences in the requirements between these subsystems there are many commonalities. An overview of the dataflow (event selection) and supervision (control, configuration, monitoring) activities in the HLT is given, highlighting where commonalities between the two subsystems can be exploited and indicating where requirements dictate that implementations differ. An HLT prototype system has been built at CERN. Functional testing is being carried out in order to validate the HLT architecture
A probabilistic position value
No full textIn this article, we generalize the position value, defined by Meessen (1988) for the class of deterministic communication situations, to the class of generalized probabilistic communication situations (G´omez et al. (2008)). We provide two characterizations of this new allocation rule. Following in Slikker’s (2005a) footsteps, we characterize the probabilistic position value using probabilistic versions of component eciency and balanced link contributions. Then we generalize the notion of link potential, defined by Slikker (2005b) for the class of deterministic communication situations, to the class of generalized probabilistic communication situations, and use it to characterize our allocation rule. Finally, we show that these two characterizations are logically equivalent.Game Theory, TU Games, Graph-restricted Games, Position Value.Game Theory, TU Games, Graph-restricted Games, Position Value.
A weighted position value
No full textWe provide a generalization of the position value (Meessen 1988) that allows players to benefit from transfers of worth by investing in their communication links. The player who invests the most in a communication link obtains a compensation from the second one. We characterize this new allocation rule on the class of communication situations with cycle-free graphs by means of six axioms. The first two axioms, component efficiency and superfluous link property, are used to characterize the position value (Borm, Owen, and Tijs (1992)). Quasi-additivity is a weak version of the standard additivity axiom. Link decomposability captures the fact that the insurance system only allows compensations between players who share a link. Weak positivity states that if the communicative strength of a link is non null, its adjacent players cannot obtain a null payoff. Finally, weak power inversion reflects the compensation mechanism.Weighted position value; MonotonicityWeighted position value; Monotonicity
Please verify that (1) all pages are present, (2) all figures are acceptable, (3) all fonts and special characters are correct, and (4) all text and figures fit within the margin lines shown on this review document. Return to your MySPIE ToDo list and approve or disapprove this submission. Technologies for multimedia and video surveillance convergence D. Nicholson a and J. Meessen b
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