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Vidraru tourist region in the context of sustainable development
REMUS PRVLIE
Cinq Continents , 2011,
Abstract: Région touristique Vidraru dans le contexte du développement durable. La vallée de la rivière Arges dans le secteur montagneux présente un potentiel touristique élevé particulièrement dans la région du lac d’accumulation Vidraru. Ce potentiel est mis en évidence par l’intermédiaire du cadre naturel et également par celui des objectifs antropiques à grande valeur culturelle et économique. Même si l’aménagement du lac d’accumulation a représenté une opportunité de développement des activités touristiques de la région, on identifie en présent de nombreux problèmes concernant la gestion touristique et également la pression sur l’environnement. De cette manière, il importe de faire une analyse sur le développement de la région touristique Vidraru de la perspective durable, afin d’identifier ainsi les solutions le plus viables.
Considerations regarding the impact of the Vidraru hydro facility on Biodiversity
REMUS PRVLIE
Cinq Continents , 2011,
Abstract: Considérations concernant l'impact de l’aménagement hydrotehniqueVidraru sur la biodiversité. L’aménagement du lac de retenue Vidraru adéterminé des changements profonds dans le milieu régional, étant le plus fréquemment un facteur perturbateur des éléments de l’environnement. De cette manière, étant donné que les éléments biogéographiques sont l’un des composants le plus affectés de l’environnement, cet article traite des principalesmodifications apparues au niveau de la végétation et de la faune (ichtyofaune), la biodiversité ayant subi les effets les plus importants à la suite de cette intervention anthropique (humaine).
The temporal dynamic of the precipitations regime in the Basca Chiojdului Basin (Romania) and its impact on the surface flow regime
ROMULUS COSTACHE,,REMUS PRVLIE
Cinq Continents , 2012,
Abstract: Dynamique temporelle des précipitations dans la bassin de Basca Chiojdului et des impacts du déversement. Au cours des dernières décennies on remarque une forte variation des quantités pluviométriques dans la région de Courbure (les Carpates et les Sous-Carpates), l’empreinte laissée dans le régime de l’écoulement superficiel étant ressentie y compris dans la zone d’étude. L’analyse spatiotemporelle des précipitations dans la période des années 1962-1998 ainsi que la corrélation avec la variation des débits dans le Bassin Basca Chiojdului, mettent en évidence une forte diminution des quantités pluviométriques après 1980, les effets directs se retrouvant dans le régime de l’écoulement superficiel dans le même temps que la diminution simultanée des débits. Bien qu’il y ait aussi des facteurssecondaires qui influent sur le régime de l’écoulement superficiel, cet article envisage d’analyser en particulier la manière où la variation du principal facteur déterminant, les précipitations, conditionne directement le régime de l’écoulement du cours d’eau principal, Basca Chiojdului.
Trekking as a metaphor for medicine and medical education
PR Shankar,V Malhotra
Journal of College of Medical Sciences-Nepal , 2010, DOI: 10.3126/jcmsn.v6i1.3607
Abstract: Nepal is a favored trekking destination. Over the years a number of trekking styles have emerged and the author sees similarities between trekking styles and methods of medical education. Problem-based learning strategies make students more involved in their own learning and teachers act as facilitators. Trekkers and medical students mostly concentrate on the immediate trail or different subjects and are able to obtain an integrated and holistic view only occasionally. The nature of the doctor-patient relationship is changing with patients wanting to play a more active role in their treatment. Workers in the trekking industry and doctors slowly rise through the ranks. Often people take up jobs with more responsibilities and challenges which pay better. Technology has invaded both trekking and healthcare and most of the money is made by middlemen. In addition to other areas medicine is focusing on preparing patients for the final exist Key Words : Problem-based learning; doctor-patient relationship; medicine. DOI: 10.3126/jcmsn.v6i1.3607 Journal of College of Medical Sciences-Nepal, 2010, Vol. 6, No. 1, 67-69
Momentul de educa ie fizic n didactica activit ilor de nv mant preuniversitar
Cosmin Prodea,Remus Cristian V?id?h?zan
Journal of Didactics , 2011,
Abstract: The easiest way to give children the needed opportunity for physical activity is physical education in compulsory education. Physical education, in addition to physiological benefits that brings to the human body, will help increase work capacity of children to other disciplines.To address this idea further, we want to bring into focus an extracurricular form of physical activity. This form of physical activity was introduced long ago in the school program of children but, it seems, with the modernization of education has been forgotten by most. It presents important advantages, contributing to education for physical activity and solving problems regarding intellectual fatigue of children during other disciplines than physical education.The physical education moment may be included in the school program of children but it is not mandatory. It depends, therefore, by the teacher of that discipline if will insert or not the physical education moment at his class.Due to lack of obligation for the use of physical education moment, lack of minimum knowledge of physiology and probably too many requests for each discipline, teachers have now forgotten the physical education moment and the benefits that it brings. We, however, have positive signs in terms of trials that aretaking place in some schools to restore physical education to its rightful place in the didactic of school education activities.
Anelastic tidal dissipation in multi-layer planets
F. Remus,S. Mathis,J. -P. Zahn,V. Lainey
Physics , 2012, DOI: 10.1051/0004-6361/201118595
Abstract: Earth-like planets have viscoelastic mantles, whereas giant planets may have viscoelastic cores. The tidal dissipation of such solid regions, gravitationally perturbed by a companion body, highly depends on their rheology and on the tidal frequency. Therefore, modelling tidal interactions presents a high interest to provide constraints on planets' properties and to understand their history and their evolution, in our Solar System or in exoplanetary systems. We examine the equilibrium tide in the anelastic parts of a planet whatever the rheology, taking into account the presence of a fluid envelope of constant density. We show how to obtain the different Love numbers that describe its tidal deformation. Thus, we discuss how the tidal dissipation in solid parts depends on the planet's internal structure and rheology. Finally, we show how the results may be implemented to describe the dynamical evolution of planetary systems. The first manifestation of the tide is to distort the shape of the planet adiabatically along the line of centers. Then, the response potential of the body to the tidal potential defines the complex Love numbers whose real part corresponds to the purely adiabatic elastic deformation, while its imaginary part accounts for dissipation. This dissipation is responsible for the imaginary part of the disturbing function, which is implemented in the dynamical evolution equations, from which we derive the characteristic evolution times. The rate at which the system evolves depends on the physical properties of tidal dissipation, and specifically on how the shear modulus varies with tidal frequency, on the radius and also the rheological properties of the solid core. The quantification of the tidal dissipation in solid cores of giant planets reveals a possible high dissipation which may compete with dissipation in fluid layers.
The surface signature of the tidal dissipation of the core in a two-layer planet
F. Remus,S. Mathis,J. -P. Zahn,V. Lainey
Physics , 2014, DOI: 10.1051/0004-6361/201424472
Abstract: Tidal dissipation, which is directly linked to internal structure, is one of the key physical mechanisms that drive systems evolution and govern their architecture. A robust evaluation of its amplitude is thus needed to predict evolution time for spins and orbits and their final states. The purpose of this paper is to refine recent model of the anelastic tidal dissipation in the central dense region of giant planets, commonly assumed to retain a large amount of heavy elements, which constitute an important source of dissipation. The previous paper evaluated the impact of the presence of the static fluid envelope on the tidal deformation of the core and on the associated anelastic tidal dissipation, through the tidal quality factor Qc. We examine here its impact on the corresponding effective anelastic tidal dissipation, through the effective tidal quality factor Qp. We show that the strength of this mechanism mainly depends on mass concentration. In the case of Jupiter- and Saturn-like planets, it can increase their effective tidal dissipation by, around, a factor 2.4 and 2 respectively. In particular, the range of the rheologies compatible with the observations is enlarged compared to the results issued from previous formulations. We derive here an improved expression of the tidal effective factor Qp in terms of the tidal dissipation factor of the core Qc, without assuming the commonly used assumptions. When applied to giant planets, the formulation obtained here allows a better match between the an elastic core's tidal dissipation of a two-layer model and the observations.
The anelastic equilibrium tide in exoplanetary systems
F. Remus,S. Mathis,J. -P. Zahn,V. Lainey
Physics , 2012,
Abstract: Earth-like planets have anelastic mantles, whereas giant planets may have anelastic cores. As for the fluid parts of a body, the tidal dissipation of such solid regions, gravitationally perturbed by a companion body, highly depends on its internal friction, and thus on its internal structure. Therefore, modelling this kind of interaction presents a high interest to provide constraints on planet interiors, whose properties are still quite uncertain. Here, we examine the equilibrium tide in the solid central region of a planet, taking into account the presence of a fluid envelope. We first present the equations governing the problem, and show how to obtain the different Love numbers that describe its deformation. We discuss how the quality factor Q depends on the rheological parameters, and the size of the core. Taking plausible values for the anelastic parameters, and examinig the frequency-dependence of the solid dissipation, we show how this mechanism may compete with the dissipation in fluid layers, when applied to Jupiter- and Saturn-like planets. We also discuss the case of the icy giants Uranus and Neptune.
Ir-LBP, an Ixodes ricinus Tick Salivary LTB4-Binding Lipocalin, Interferes with Host Neutrophil Function
Jér?me Beaufays, Beno?t Adam, Catherine Menten-Dedoyart, Laurence Fievez, Amélie Grosjean, Yves Decrem, Pierre-Paul Prév?t, Sébastien Santini, Robert Brasseur, Michel Brossard, Michel Vanhaeverbeek, Fabrice Bureau, Ernst Heinen, Laurence Lins, Luc Vanhamme, Edmond Godfroid
PLOS ONE , 2008, DOI: 10.1371/journal.pone.0003987
Abstract: Background During their blood meal, ticks secrete a wide variety of proteins that can interfere with their host's defense mechanisms. Among these proteins, lipocalins play a major role in the modulation of the inflammatory response. Methodology/Principal Findings We previously identified 14 new lipocalin genes in the tick Ixodes ricinus. One of them codes for a protein that specifically binds leukotriene B4 with a very high affinity (Kd: ±1 nM), similar to that of the neutrophil transmembrane receptor BLT1. By in silico approaches, we modeled the 3D structure of the protein and the binding of LTB4 into the ligand pocket. This protein, called Ir-LBP, inhibits neutrophil chemotaxis in vitro and delays LTB4-induced apoptosis. Ir-LBP also inhibits the host inflammatory response in vivo by decreasing the number and activation of neutrophils located at the tick bite site. Thus, Ir-LBP participates in the tick's ability to interfere with proper neutrophil function in inflammation. Conclusions/Significance These elements suggest that Ir-LBP is a “scavenger” of LTB4, which, in combination with other factors, such as histamine-binding proteins or proteins inhibiting the classical or alternative complement pathways, permits the tick to properly manage its blood meal. Moreover, with regard to its properties, Ir-LBP could possibly be used as a therapeutic tool for illnesses associated with an increased LTB4 production.
POLICY DIALOG: THE MISSING LINK IN THE 2008 ROMANIAN HUMAN PAPILLOMAVIRUS (HPV) VACCINATION PROGRAM
Remus PRICOPIE
Transylvanian Review of Administrative Sciences , 2009,
Abstract: The model of the traditional decision-making deciding behind the closed doors of power is strongly eroded by the new perception of democracy, as it is gradually replaced by a model dominated not by managers, but by the management of decision. This article analyzes from the social sciences perspective a) why the Romanian 2008 HPV vaccination campaign turned out to be a failure, b) what generated the strong public rejection of a policy that the Ministry of Public Health supposed would be easily accepted by the population, and especially by the targeted group – the 10-11 years old girls and their parents. The article also seeks to offer recommendations, from the public communication perspective, regarding how policy dialogue and public participation might support the promotion of large-scale policies by involving the stakeholders at all stages of the decision-making process, and hence, avoiding unfounded social tensions and waste of valuable resources.
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