References of "2013"      in Complete repository Arts & humanities   Archaeology   Art & art history   Classical & oriental studies   History   Languages & linguistics   Literature   Performing arts   Philosophy & ethics   Religion & theology   Multidisciplinary, general & others Business & economic sciences   Accounting & auditing   Production, distribution & supply chain management   Finance   General management & organizational theory   Human resources management   Management information systems   Marketing   Strategy & innovation   Quantitative methods in economics & management   General economics & history of economic thought   International economics   Macroeconomics & monetary economics   Microeconomics   Economic systems & public economics   Social economics   Special economic topics (health, labor, transportation…)   Multidisciplinary, general & others Engineering, computing & technology   Aerospace & aeronautics engineering   Architecture   Chemical engineering   Civil engineering   Computer science   Electrical & electronics engineering   Energy   Geological, petroleum & mining engineering   Materials science & engineering   Mechanical engineering   Multidisciplinary, general & others Human health sciences   Alternative medicine   Anesthesia & intensive care   Cardiovascular & respiratory systems   Dentistry & oral medicine   Dermatology   Endocrinology, metabolism & nutrition   Forensic medicine   Gastroenterology & hepatology   General & internal medicine   Geriatrics   Hematology   Immunology & infectious disease   Laboratory medicine & medical technology   Neurology   Oncology   Ophthalmology   Orthopedics, rehabilitation & sports medicine   Otolaryngology   Pediatrics   Pharmacy, pharmacology & toxicology   Psychiatry   Public health, health care sciences & services   Radiology, nuclear medicine & imaging   Reproductive medicine (gynecology, andrology, obstetrics)   Rheumatology   Surgery   Urology & nephrology   Multidisciplinary, general & others Law, criminology & political science   Civil law   Criminal law & procedure   Criminology   Economic & commercial law   European & international law   Judicial law   Metalaw, Roman law, history of law & comparative law   Political science, public administration & international relations   Public law   Social law   Tax law   Multidisciplinary, general & others Life sciences   Agriculture & agronomy   Anatomy (cytology, histology, embryology...) & physiology   Animal production & animal husbandry   Aquatic sciences & oceanology   Biochemistry, biophysics & molecular biology   Biotechnology   Entomology & pest control   Environmental sciences & ecology   Food science   Genetics & genetic processes   Microbiology   Phytobiology (plant sciences, forestry, mycology...)   Veterinary medicine & animal health   Zoology   Multidisciplinary, general & others Physical, chemical, mathematical & earth Sciences   Chemistry   Earth sciences & physical geography   Mathematics   Physics   Space science, astronomy & astrophysics   Multidisciplinary, general & others Social & behavioral sciences, psychology   Animal psychology, ethology & psychobiology   Anthropology   Communication & mass media   Education & instruction   Human geography & demography   Library & information sciences   Neurosciences & behavior   Regional & inter-regional studies   Social work & social policy   Sociology & social sciences   Social, industrial & organizational psychology   Theoretical & cognitive psychology   Treatment & clinical psychology   Multidisciplinary, general & others     Showing results 41 to 60 of 5525     1 2 3 4 5 6 7 8     The X-ray under-luminosity of the O-type supergiants HD16691 and HD14947 revealed by XMM-NewtonDe Becker, Michaël in New Astronomy (2013), 25The members of the scarce category of Of^+ supergiants present properties that are intermediate between regular O-stars and Wolf-Rayet (WR) stars. Significant similarities between these transitional stars ... [more ▼]The members of the scarce category of Of^+ supergiants present properties that are intermediate between regular O-stars and Wolf-Rayet (WR) stars. Significant similarities between these transitional stars and WN-type objects are now clearly established, at least in the visible and near-infrared domains, pointing to common stellar wind properties. In this study, we report on the first dedicated X-ray observations of HD16691 (O4If^+) and HD14947 (O5f^+), revealing a soft thermal spectrum in agreement with the expected X-ray emission from a single O-type star. However, the X-ray luminosity of our targets is slightly lower than expected for single O-type stars, suggesting that the particular properties of their stellar wind has also a significant impact on the X-ray emission of these objects on the way to the WN category. We argue that the X-ray under-luminosity of HD16691 and HD14947 may be interpreted as the signature in X-rays of the intermediate stage between O and WR stars, as a consequence of enhanced wind density. [less ▲]Detailed reference viewed: 19 (2 ULg) Tgfbeta-Smad and MAPK signaling mediate scleraxis and proteoglycan expression in heart valves.Barnette, Damien; Hulin, Alexia; Ahmed, Ishtiaq et alin Journal of Molecular and Cellular Cardiology (2013), 65Detailed reference viewed: 9 (0 ULg) Reseña de Francisco Delicado, La Lozana andaluza, edición, estudio y notas de Folke Gernert y Jacques Joset, Madrid, Galaxia Gutenberg-Círculo de Lectores-"Biblioteca clásica de la Real Academia Española", 2013François, Jéromine in Celestinesca (2013), 37Detailed reference viewed: 24 (3 ULg) Local head-loss coefficient at the rectangular transition from a free-surface channel to a conduitVan Nam, Nguyen; Archambeau, Pierre ; Dewals, Benjamin et alin Journal of Hydraulic Engineering (2013), 139(12), 1318-1323Experimental tests have been performed to observe and determine, in stationary flow conditions, the local head loss at the transition from a free surface channel to a conduit. These investigations ... [more ▼]Experimental tests have been performed to observe and determine, in stationary flow conditions, the local head loss at the transition from a free surface channel to a conduit. These investigations considered a wide range of discharge and varied dimensions and positions of a rectangular cross section conduit connected to the downstream extremity of a rectangular free surface channel. From the head loss evaluation results, simple analytical expressions to predict the local head loss coefficient value at the rectangular transition from a channel to a conduit are proposed and validated. [less ▲]Detailed reference viewed: 4 (1 ULg) FROM SECRET AGENTS TO INTERAGENCYDespret, Vinciane in History and theory (2013), 52Some scientists who study animals have emphasized the need to focus on the “point of view” of the animals they are studying. This methodological shift has led to animals being credited with much more ... [more ▼]Some scientists who study animals have emphasized the need to focus on the “point of view” of the animals they are studying. This methodological shift has led to animals being credited with much more agency than is warranted. However, as critics suggest, on the one hand, the “perspective” of another being rests mostly upon “sympathetic projection,” and may be difficult to apply to unfamiliar beings, such as bees or even flowers. On the other hand, the very notion of agency still conveys its classic understanding as intentional, rational, and premeditated, and is still embedded in humanist and Christian conceptions of human exceptionalism. This paper seeks, in the first part, to investigate the practical link between these two notions and the problems they raise. In the second part, following the work of two historians of science who have revisited Darwin’s studies of orchids and their pollinators, it will observe a shift in the meaning of the concept of agency. Indeed, creatures may appear as “secret agents” as long as we adopt a conventional definition of agency based on subjective experience and autonomous intention. However, when reframed in the terms of “agencement”—an assemblage that produces “agentivity”— agency seems to be much more extensively shared in the living world. We will then explore some of the concrete situations in which these agencements are manifested, and through which creatures of different species become, one for another and one with another, companion-agents. [less ▲]Detailed reference viewed: 9 (0 ULg) Sémiotique de la communication en co-présence et à distance. Du textualisme à la sémiotique des pratiquesDondero, Maria Giulia ; Angenot, Valérie ; Joachim, Guillaume et alin Interfaces Numériques (2013), 6This article aims to challenge and reflect on the theories issued by both textualist semiotics and the semiotics of practices. Our reflexion shall focus, on the one hand, on synchronic communication in ... [more ▼]This article aims to challenge and reflect on the theories issued by both textualist semiotics and the semiotics of practices. Our reflexion shall focus, on the one hand, on synchronic communication in copresence and, on the other hand, on virtual participative remote collaboration by means of digital interfaces. In high-level collaborative activities —such as remote architectural project developments— the practices of the partners involved in the communication process are conditioned by intrinsic material constraints; they have to gradually readapt to the constantly renewed dynamics of the predicative structures in order to ensure communication efficiency. One of the main purposes of this paper consists in exploring the theoretical propositions and methodologies connected to practices, as proposed by Jacques Fontanille’s semiotics (2008) and by Jacques Theureau’s ergonomics of the “course of action” (2006). The results of these theoretical reflections will be tested through their application to a specific corpus, in an aim to confront the efficiency of such proposals with a case study. Multimodality and the role played by the different types of utterances in the efficiency of communication, as well as the adaptation of the semiotic practices to the digital interfaces also fall under the scope of this paper. Besides, the authors propose a reflection on potential mediations between the ongoing practices and their objectivation through textualisation and notation. [less ▲]Detailed reference viewed: 15 (0 ULg) Model Predictive Control of Voltages in Active Distribution NetworksValverde Mora, Gustavo ; Van Cutsem, Thierry in IEEE Transactions on Smart Grid (2013), 4(4), 2152-2161This paper presents a centralized control scheme to regulate distribution network voltages in the presence of high penetration of distributed generation. The approach is inspired of Model Predictive ... [more ▼]This paper presents a centralized control scheme to regulate distribution network voltages in the presence of high penetration of distributed generation. The approach is inspired of Model Predictive Control in order to compensate for modeling inaccuracies and measurement noise. The control actions, calculated from a multi-step optimization, are updated and corrected by real-time measurements. The proposed controller uses a linear model to predict the behavior of the system and the optimization is solved using quadratic programming. The proposed corrective control has been tested in a 11-kV distribution network including 75 nodes and hosting 22 distributed generating units. [less ▲]Detailed reference viewed: 255 (59 ULg) Quadratization of symmetric pseudo-Boolean functionsAnthony, Martin; Boros, Endre; Crama, Yves et alE-print/Working paper (2013)A pseudo-Boolean function is a real-valued function $f(x)=f(x_1,x_2,\ldots,x_n)$ of $n$ binary variables; that is, a mapping from $\{0,1\}^n$ to ${\bbr}$. For a pseudo-Boolean function $f(x)$ on $\{0,1 ... [more ▼]A pseudo-Boolean function is a real-valued function$f(x)=f(x_1,x_2,\ldots,x_n)$of$n$binary variables; that is, a mapping from$\{0,1\}^n$to${\bbr}$. For a pseudo-Boolean function$f(x)$on$\{0,1\}^n$, we say that$g(x,y)$is a quadratization of$f$if$g(x,y)$is a quadratic polynomial depending on$x$and on$m$auxiliary binary variables$y_1,y_2,\ldots,y_m$such that$f(x)= \min \{ g(x,y) : y \in \{0,1\}^m \} $for all$x \in \{0,1\}^n$. By means of quadratizations, minimization of$f$is reduced to minimization (over its extended set of variables) of the quadratic function$g(x,y)$. This is of some practical interest because minimization of quadratic functions has been thoroughly studied for the last few decades, and much progress has been made in solving such problems exactly or heuristically. A related paper initiated a systematic study of the minimum number of auxiliary$y$-variables required in a quadratization of an arbitrary function$f$(a natural question, since the complexity of minimizing the quadratic function$g(x,y)$depends, among other factors, on the number of binary variables). In this paper, we determine more precisely the number of auxiliary variables required by quadratizations of \emph{symmetric} pseudo-Boolean functions$f(x)$, those functions whose value depends only on the Hamming weight of the input$x\$ (the number of variables equal to 1). [less ▲]Detailed reference viewed: 10 (0 ULg) Developing a Global Food Security PolicyPaveliuc Olariu, Codrin in Advances in Agriculture & Botanics (2013), 5(3), 169-173The world agrifood system continues to be in a vulnerable state as we fast approach the 2015 deadline for the Millennium Development Goal of halving the proportion of people suffering from hunger ... [more ▼]The world agrifood system continues to be in a vulnerable state as we fast approach the 2015 deadline for the Millennium Development Goal of halving the proportion of people suffering from hunger. Although a number of countries have made important changes towards developing food related policies, at the level of the global community, the challenge of food (in)security has not been able push policy makers to develop a common solution to be applied, solution that could include the regional and national specificities registered around the world, while also integrating a global view of increasing agricultural productivity, higher farm competitiveness and without relinquishing the national or individual right for food governance. [less ▲] Study of the roles of Cyprinid herpesvirus 3 ORF134 in the biology of the infectionOuyang, Ping Doctoral thesis (2013)The common carp is one of the most important freshwater fish species in aquaculture, and its colourful subspecies koi is grown for personal pleasure and competitive exhibitions. Both two subspecies are ... [more ▼]The common carp is one of the most important freshwater fish species in aquaculture, and its colourful subspecies koi is grown for personal pleasure and competitive exhibitions. Both two subspecies are economically important. In the late 1990s, a highly contagious and lethal pathogen called koi herpesvirus (KHV) or cyprinid herpesvirus 3 (CyHV-3) began to cause severe financial losses in these two carp industries worldwide. In 2005, CyHV-3 has been classified in the Alloherpesviridae family of the order Herpesvirales. Because of its economic importance and its numerous original biological properties, CyHV 3 became rapidly an attractive subject for applied and fundamental research. However, to date, there is a little information on the roles of individual CyHV-3 genes in the biology of CyHV-3 infection or its pathogenesis. Moreover, there is a lack of safe and efficacious vaccine for the control of CyHV-3 disease. The goal of this thesis was to study the roles of CyHV-3 ORF134 encoding an IL-10 homologue in the biology of the infection. CyHV-3 ORF134 has been predicted to contain an 84 bp intron flanked by 2 exons encoding together a 179 amino acid product. Transcriptomic analyses reveal that ORF134 is expressed as a spliced early-late gene. The identification of the CyHV-3 secretome was achieved using 2D-LC MS/MS proteomic approach. This method led to the identification of 5 viral and 46 cellular proteins in concentrated infected cell culture supernatant. CyHV-3 ORF12 and ORF134 were amongst the most abundant proteins detected. To investigate the roles of ORF134 in the biological of the infection, a strain deleted for ORF134 and a derived revertant strain were produced by using BAC cloning and prokaryotic recombination technologies. Comparison of these strains demonstrated that CyHV-3 ORF134 does not contribute significantly to viral growth in vitro or to virulence in vivo in the present laboratory setting. The present study addressed for the first time the in vivo role of a vIL-10 encoded by a member of the family Alloherpesviridae. This study has been published in Veterinary Research. During the course of the first study, we obtained an unexpected recombination event while we were reconstituting infectious virus from mutated BAC plasmids. To generate a revertant ORF134 Del galK strain, CCB cells were co-transfected with the FL BAC ORF134 Del galK plasmid and the pGEMT-TK vector to remove the BAC cassette inserted in the ORF55 locus (encoding thymidine kinase). One of the clones obtained had an unexpected recombination leading to the deletion of ORF56 and ORF57 in addition to the expected deletion of ORF134. Unexpectedly, this triple deleted strain replicated efficiently in vitro, exhibited an attenuated phenotype in vivo and was proved to confer in a dose dependent manner an immune protection against a lethal challenge. The goal of the second experimental chapter was to investigate the role of the ORF56-57 and ORF134 deletions in the observed safety/efficacy profile of the triple deleted recombinant. To reach this goal, a collection of recombinant strains were produced using BAC cloning technologies, characterized and tested in vivo for their safety/efficacy profile. The results obtained demonstrated that the ORF56-57 deletion is responsible for the phenotype observed and that ORF134 deletion does not contribute to this phenotype significantly. Finally, the immune protection conferred by ORF56-57 deleted recombinant was investigated by challenging immunized fish with a wild type strain expressing luciferase as a reporter gene. In vivo imaging system (IVIS) analyses of immunized and challenged fish demonstrated that the immune response induced by the ORF56-57 deleted strain was able to prevent subclinical infection of the challenge strain. In conclusion, the present thesis addressed both fundamental and applied aspects of CyHV-3. For the first time, it investigated in vivo the roles of a viral IL-10 homologue encoded by a member of the family Alloherpesviridae. Importantly, it identified the ORF56-57 loci as target for production of safe and efficacious attenuated recombinant vaccines. [less ▲]Detailed reference viewed: 16 (7 ULg) La "Commission nationale des sciences" et l’émergence d’un concept de politique scientifique en BelgiquePirot, Pascal in MALPANGOTTO, Michela; JULLIEN, Vincent; NICOLAIDIS, Efthymios (Eds.) L’homme au risque de l’infini. Mélanges d’histoire et de philosophie des sciences offerts à Michel Blay (2013)Detailed reference viewed: 12 (2 ULg) Grasshoppers: Food Security & NutritionPaul, Aman ; Danthine, Sabine ; Frederich, Michel et alScientific conference (2013, December)Rising economies and rapid urbanization in developing countries, particularly in Asia, are creating shifts in the composition of global food demand, so it is necessary to explore new sources of food with ... [more ▼]Rising economies and rapid urbanization in developing countries, particularly in Asia, are creating shifts in the composition of global food demand, so it is necessary to explore new sources of food with better nutritional profile. Among the alternative food that exists are the grasshoppers, about 80 species of which are consumed worldwide. Grasshoppers are not only rich source of proteins and lipids but also some important minor component like vitamins and minerals. Apart from being nutritionally superior to most conventional meats their production results in lower emission of greenhouse gases & ammonia, risk of zoonotic infections in humans is much lower, water requirement for production is much less and have higher feed conversion ratio. Edible species of grasshopper in Belgium were identified, attempts were made for the lab rearing of meadow grasshopper (Chorthippus parallelus) and fat as well as protein contents of meadow grasshopper (Chorthippus parallelus) & long winged conehead (Conocephalus discolor) were investigated. [less ▲]Detailed reference viewed: 13 (6 ULg) La théorie du cinéma d'Alexander Kluge, entre fiction et documentaire. Kluge, Adorno, BlochCormann, Grégory ; Hamers, Jérémy in Cahiers du GRM (2013)Detailed reference viewed: 22 (7 ULg) René Clémens (1911-1980). Professeur à l'ULg, juriste et sociologueGenin, Vincent in Académie Royale des Sciences d'Outre-Mer (Ed.) Dictionnaire Biographique des Belges d'Outre-Mer (2013)Detailed reference viewed: 18 (1 ULg) Herman Vander Linden (1868-1956). Professeur à l'ULg et historienGenin, Vincent in Académie Royale des Sciences d'Outre-Mer (Ed.) Dictionnaire Biographique des Belges d'Outre-Mer (2013)Detailed reference viewed: 19 (4 ULg) Effects of Parecoxib on The Prevention of Postoperative Peritoneal Adhesions in Rats.Arung, Willy; Jehaes, Francois; Cheramy, Jean-Paul et alin Journal of Investigative Surgery : The Official Journal of the Academy of Surgical Research (2013), 26(6), 340-346ABSTRACT Background: No systemic preventive therapy has been successful in inhibiting the development of postoperative peritoneal adhesions (PPAs). Objective: The aim of this study was to evaluate the ... [more ▼]ABSTRACT Background: No systemic preventive therapy has been successful in inhibiting the development of postoperative peritoneal adhesions (PPAs). Objective: The aim of this study was to evaluate the potential effects of 5 day administration of parecoxib, on PPA prevention and on suture or wound healing in rats. Methods: In a model of PPAs induced by peritoneal electrical burn, 30 rats were randomized into 3 groups according to parecoxib administration route (control; intraperitoneal (IP); intramuscular (IM)). Plasma and peritoneal levels of PAI-1 and tPA were measured at T0, after 90 min of surgery (T90), and on postoperative day 10 (D10). In a cecum resection model, 20 rats were randomized into two groups (control and IP parecoxib), and abdominal wound healing and suture leakage were assessed at D10. In both models, PPAs were evaluated quantitatively and qualitatively on D10. Results: Administration of parecoxib significantly decreased the quantity (p < .05) and the severity (p < .01) of PPAs in both models. In addition, parecoxib administration did not cause healing defects or infectious complications in the two models. In the peritoneal burn model, IP or IM parecoxib administration inhibited the increase of postoperative plasma and peritoneum PAI-1 levels, an increase that was observed in the control group (p < .01). No anastomosis leakage could be demonstrated in both groups in the cecum resection model. Conclusion: This study showed that, in these rat models, parecoxib might reduce PPA formation. Confirmation of the safety of parecoxib on intestinal anastomoses is required and should be investigated in further animal models. [less ▲]Detailed reference viewed: 16 (5 ULg) Performances of Volume Phase Holographic grating for space applications: study of the radiation effectLoicq, Jerôme ; Georges, Marc ; Stockman, Yvan et alin Journal of Applied Physics (2013), 52(34), The special properties of volume phase holographic gratings make them promising candidates for spectrometry applications where high spectral resolution, low levels of straylight, and low polarization ... [more ▼]The special properties of volume phase holographic gratings make them promising candidates for spectrometry applications where high spectral resolution, low levels of straylight, and low polarization sensitivity are required. Therefore it is of interest to assess the maturity and suitability of volume phase holographic gratings as enabling technologies for future space missions, with demanding requirements for spectrometry. One of the main areas of research is related to grating ageing under space radiation. In the present paper, two volume grating technologies are analyzed and compared under gamma irradiation. The performances of both technologies, the photo–thermo–refractive glass and the Dichromated Gelatin, are tested on samples and assessed in the and near-infrared bands. The diffraction efficiency degradation under gamma irradiation is assessed. [less ▲]Detailed reference viewed: 12 (3 ULg) Ferdinand Campus (1894-1983). Professeur à l'ULg/Recteur et ingénieurGenin, Vincent in Académie Royale des Sciences d'Outre-Mer (Ed.) Dictionnaire Biographique des Belges d'Outre-Mer (2013)Detailed reference viewed: 20 (3 ULg) Effects of Parecoxib on The Prevention of Postoperative Peritoneal Adhesions in Rats.Arung, Willy; Jehaes, Francois; Cheramy, Jean-Paul et alin Journal of Investigative Surgery : The Official Journal of the Academy of Surgical Research (2013), 26(6), 340-346ABSTRACT Background: No systemic preventive therapy has been successful in inhibiting the development of postoperative peritoneal adhesions (PPAs). Objective: The aim of this study was to evaluate the ... [more ▼]ABSTRACT Background: No systemic preventive therapy has been successful in inhibiting the development of postoperative peritoneal adhesions (PPAs). Objective: The aim of this study was to evaluate the potential effects of 5 day administration of parecoxib, on PPA prevention and on suture or wound healing in rats. Methods: In a model of PPAs induced by peritoneal electrical burn, 30 rats were randomized into 3 groups according to parecoxib administration route (control; intraperitoneal (IP); intramuscular (IM)). Plasma and peritoneal levels of PAI-1 and tPA were measured at T0, after 90 min of surgery (T90), and on postoperative day 10 (D10). In a cecum resection model, 20 rats were randomized into two groups (control and IP parecoxib), and abdominal wound healing and suture leakage were assessed at D10. In both models, PPAs were evaluated quantitatively and qualitatively on D10. Results: Administration of parecoxib significantly decreased the quantity (p < .05) and the severity (p < .01) of PPAs in both models. In addition, parecoxib administration did not cause healing defects or infectious complications in the two models. In the peritoneal burn model, IP or IM parecoxib administration inhibited the increase of postoperative plasma and peritoneum PAI-1 levels, an increase that was observed in the control group (p < .01). No anastomosis leakage could be demonstrated in both groups in the cecum resection model. Conclusion: This study showed that, in these rat models, parecoxib might reduce PPA formation. Confirmation of the safety of parecoxib on intestinal anastomoses is required and should be investigated in further animal models. [less ▲]Detailed reference viewed: 16 (5 ULg) Pierre Legendres »dogmatische Anthropologie«. Subjektkonstitution im Medium des BlicksHackbarth, Sabine Book published by Turia + Kant (2013)Detailed reference viewed: 18 (2 ULg)