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Search Results: 1 - 10 of 608 matches for " Gruss HJ "
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Konservative Therapie der Stuhlinkontinenz
Gruss HJ
Journal für Urologie und Urogyn?kologie , 2004,
Abstract:
Black Holes in Ho?ava Gravity with Higher Derivative Magnetic Terms
Eyal Gruss
Physics , 2010, DOI: 10.1088/0264-9381/28/8/085007
Abstract: We consider Horava gravity coupled to Maxwell and higher derivative magnetic terms. We construct static spherically symmetric black hole solutions in the low-energy approximation. We calculate the horizon locations and temperatures in the near-extremal limit, for asymptotically flat and (anti-)de Sitter spaces. We also construct a detailed balanced version of the theory, for which we find projectable and non-projectable, non-perturbative solutions.
A Suggestion for a Teleological Interpretation of Quantum Mechanics
Eyal Gruss
Physics , 2000,
Abstract: We suggest solving the measurement problem by postulating the existence of a special future final boundary condition for the universe. Although this is an extension of the way boundary conditions are usually chosen (in terrestrial laboratories), it is our only deviation from standard quantum mechanics. Using two state vectors, or the "two-state", to describe completely the state of systems of interest, we analyze ideal and "weak" measurements, and show the consistency of our scheme. If the final state of a measuring device is assigned to be one of the possible outcomes of the measurement, an effective reduction is observed after an ideal measurement process. For final conditions chosen with an appropriate distribution, the predictions of standard quantum mechanics may be reconstructed, thus eliminating probability from the description of any single measurement. The interpretation attained, the Teleological Interpretation, is an ontological one; it is local and deterministic. Other special assumptions in the choice of the final boundary condition may explain certain unaccounted for phenomena, or even supply a mechanism for essential free will. In this context we believe that a new conception of time should be adopted.
Alterations of Amino Acids and Monoamine Metabolism in Male Fmr1 Knockout Mice: A Putative Animal Model of the Human Fragile X Mental Retardation Syndrome
Michael Gruss,Katharina Braun
Neural Plasticity , 2001, DOI: 10.1155/np.2001.285
Abstract: The Fragile X syndrome, a common form of mental retardation in humans, is caused by silencing the fragile X mental retardation (FMR1) geneleading to the absence of the encoded fragile X mental retardation protein 1 (FMRP). We describe morphological and behavioral abnormalities for both affected humans and Fmr1 knockout mice, a putative animal model for the human Fragile X syndrome. The aim of the present study was to identify possible neurochemical abnormalities in Fmr1 knockout mice, with particular focus on neurotransmission. Significant region-specific differences: of basal neurotransmitter and metabolite levels were found between wildtype and Fmr1 knockout animals, predominantly in juveniles (post-natal days 28 to 31). Adults (postnatal days 209 to 221) showed only few abnormalities as compared with the wildtype. In juvenile knockout mice, aspartate and taurine were especially increased in cortical regions, striatum, hippocampus, cerebellum, and brainstem. In addition, juveniles showed an altered balance between excitatory and inhibitory amino acids in the caudal cortex, hippocampus, and brainstem. We detected very few differences in monoamine turnover in both age stages. The results presented here provide the first evidence that lack of FMRP expression in FMRP knockout mice is accompanied by age-dependent, region-specific alterations in neurotransmission.
La pintura mural hispano-musulmana. Tradición o innovación?
Rallo Gruss, Carmen
Al-Qantara : Revista de Estudios Arabes , 2003,
Abstract: It is generally thought that in Western Europe and at the end of the medieval period, tempera paint with oil as a medium was applied to dry plaster walls because the Roman technique for painting on wet plaster (al fresco) had been forgotten. Texts such as the Libro dell'Arte by Cennino Cennini discuss the recovery of the fresco technique by some of the founding painters of the Italian Renaissance, such as Giotto. From Renaissance Italy, it is argued, the technique expanded to the rest of Europe. However, in medieval Hispanic monuments with Islamic iconography there is evidence of painted fresco decoration dated prior to the fifteenth century. This paper studies the sources of this technical tradition by analysing examples of Iberian, Roman, Islamic, Mudéjar and Morisco mural painting. El convencimiento de que a finales de la Edad Media las paredes eran decoradas con pintura al seco, realizada con temple, más o menos graso, olvidando la técnica de pintura al fresco utilizada habitualmente por los romanos, es algo admitido para toda la Europa Occidental. Textos como el Libro dell′Arte de Cennino Cennini nos hablan de su recuperación por los iniciadores del Renacimiento italiano como el Giotto; desde allí se expandirá la técnica a todos los países europeos. Sin embargo, en los monumentos hispanos con iconografía de tradición islámica se siguen realizando decoraciones al fresco hasta el siglo XV. En busca de explicaciones a esta excepción, en este artículo se buscan las fuentes de esa tradición técnica, analizando ejemplos de pintura mural ibera, romana, islámica y de lo morisco o mudéjar. El estudio se centra en los materiales utilizados, incluso con analítica de laboratorio, en paralelo con los motivos estilísticos que se encuentran en cada época.
Facial Expression Reactions to Feedback in a Human-Computer Interaction—Does Gender Matter?  [PDF]
Stefanie Rukavina, Sascha Gruss, Holger Hoffmann, Harald C. Traue
Psychology (PSYCH) , 2016, DOI: 10.4236/psych.2016.73038
Abstract:

The present study investigated facial expressions as reactions to positive and negative feedback during a human-computer interaction. Thirty subjects interacted in natural language with a computer system while conducting a mental task, which was designed in the style of a Wizard of Oz scenario. During six different experimental sequences from a well-known memory paradigm (“Concentration”), the wizard produced different feedback as a manipulative tactic to alter the users’ reactions, e.g., praising the subject was assumed to exert a positive influence on the subjects’ moods. To analyze the impact of various feedback on the emotional reaction, facial expressions from all subjects were coded with the Facial Expression Coding System (FACES). In general, the outcomes yielded more negative facial expressions in response to positive feedback as compared with negative feedback. Furthermore, a gender difference was evident: women showed significantly more negative facial expressions in response to praise (“Your performance is improving”) than men. The study and results show that when considering future companion technologies, it is important to carefully investigate users’ reactions to feedback, since paradoxical reactions may ensue.

Elderly People Benefit More from Positive Feedback Based on Their Reactions in the Form of Facial Expressions during Human-Computer Interaction  [PDF]
Stefanie Rukavina, Sascha Gruss, Holger Hoffmann, Harald C. Traue
Psychology (PSYCH) , 2016, DOI: 10.4236/psych.2016.79124
Abstract: In this brief report, we present the results of our investigation into the impact of age on reactions in the form of facial expressions to positive and negative feedback during human-computer interaction. In total, 30 subjects were analyzed after a video-recorded mental task in the style of a Wizard of Oz scenario. All subjects and their facial reactions were coded using the Facial Expression Coding System (FACES). To summarize briefly, we can conclude from our facial expression analysis that compared with their younger counterparts, elderly people show significantly lower levels of negative expression in response to positive feedback from the technical system (“Your performance is improving!”). This result indicates that elderly people seem to benefit more from praise during interaction than younger people, which is significant for the design of future companion technologies.
Two-time interpretation of quantum mechanics
Yakir Aharonov,Eyal Y. Gruss
Physics , 2005,
Abstract: We suggest an interpretation of quantum mechanics, inspired by the ideas of Aharonov et al. of a time-symmetric description of quantum theory. We show that a special final boundary condition for the Universe, may be consistently defined as to determine single classical-like measurement outcomes, thus solving the "measurement problem". No other deviation is made from standard quantum mechanics, and the resulting theory is deterministic (in a two-time sense) and local. Quantum mechanical probabilities are recovered in general, but are eliminated from the description of any single measurement. We call this the Two-time interpretation of quantum mechanics. We analyze ideal measurements, showing how the quantum superposition is, in effect, dynamically reduced to a single classical state via a "two-time decoherence" process. We discuss some philosophical aspects of the suggested interpretation. We also discuss weak measurements using the two-time formalism, and remark that in these measurement situations, special final boundary conditions for the Universe, might explain some unaccounted for phenomena.
Molecular epidemiology and evolution of avian infectious bronchitis virus
Montassier, HJ;
Revista Brasileira de Ciência Avícola , 2010, DOI: 10.1590/S1516-635X2010000200003
Abstract: mutation and recombination processes are involved in the genetic and phenotypic variations of rna viruses, leading to the emergence of new variant strains, and give rise to virus population diversity to be modeled by the host, particularly by the immune system, as occurred with infectious bronchitis virus (ibv) in chickens. the consequence is a continuous emergence of new ibv variants with regard to pathotypes, serotypes, and protectotypes. nucleotide sequencing and subsequent genetic analysis of the s1 and n protein gene sequences provide a fast and accurate method to classify and predict ibv genotype, and a powerful instrument to monitor phylogenetic and epidemiological evolution of ibv variants. despite the use of vaccination programmes, infectious bronchitis has become a serious problem in brazil. thus, a significant number of ibv field variants have been identified circulating in the brazilian commercial poultries between 2000 to 2006 and more recently in argentina. these viruses seem to be indigenous, because they demonstrated a low genetic relatedness with the majority of the reference strains from north america, europe and asia, but were moderately to highly related one to another. in summary, indigenous field ibv variants were evolving and circulating in the field in brazil and argentina, and should be considered as initial candidates for protection against current ibv infectious in chickens. however, in vitro and in vivo studies are needed to determine the pathogenicity and immunogenecity of these new isolates, before defining a new vaccine strain.
Missional theology and social development
HJ Hendriks
HTS Theological Studies/Teologiese Studies , 2007,
Abstract: The article describes a theological paradigm shift taking place in congregations in South Africa that empower them to become involved in development work as a way of serving their neighbor. It also opens the possibility of working interdisciplinary without compromising theological and faith values. The perspectives and assumptions of the new paradigm are outlined and the basic methodology of doing theology is described. The new paradigm is a missional one, taking the focus on God as its point of departure and describing the identity and purpose of the church by looking at God's identity and plan or mission with creation and humankind. Social development is seen as being in line with God's mission and as such the church should not have difficulty in working with those who pursue the same goals. HTS Theological Studies Vol. 63 (3) 2007: pp. 999-1016
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