OALib Journal期刊

ISSN: 2333-9721



匹配条件: “CONSTANTINA ALINA TUDOR” ,找到相关结果约2273条。
Evaluation of territorial conflicts caused by residential expansion in Bucharest suburban area. Case study: Voluntari City
Cinq Continents , 2011,
Abstract: L'évaluation des conflits territoriaux causés par l'expansion résidentielle dans la zone périurbaine de Bucarest. étude de cas: La ville Voluntari. L’aménagement territorial de l’espace aide les diverses utilisations du terrain à s’associer sans causer des dysfonctionnements ou des conflits. Dans la zone suburbaine de Bucarest les erreurs d’approche dans l’aménagement du territoireont changé dans ces dernières années sa physionomie, particulièrement grace au développement imprévu des zones résidentielles. Les conséquences de la consommation accidentelle de l’espace dans la ville Voluntari décrit un espace défavorisé par la complexité des problèmes environnementaux qui apparaissent. à cet effet ont été appliquées des méthodes pour évaluer la taille des conflits territoriaux causés par le développement imprévu des espaces résidentiels dans moins de 15 m des stations de distribution de carburant. Les résultats ont mis enévidence spatialement et quantitativement les zones en conflit, en suggérant l’emplacement imprévu des espaces résidentiels comme la principale conséquence de la création des voisinages incompatibles avec les stations de distribution de carburant. Les conflits territoriaux continuent à cro tre, leur identification et leurévaluation étant la solution de démarrage de nouvelles stratégies pour une bonne planification de l’espace avec un impact positif sur la qualité de l’environnement et du logement.
Meet Me on the Other Side: Trans-Bilayer Modulation of a Model Voltage-Gated Ion Channel Activity by Membrane Electrostatics Asymmetry
Loredana Mereuta,Alina Asandei,Tudor Luchian
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0025276
Abstract: While it is accepted that biomembrane asymmetry is generated by proteins and phospholipids distribution, little is known about how electric changes manifested in a monolayer influence functional properties of proteins localized on the opposite leaflet. Herein we used single-molecule electrophysiology and investigated how asymmetric changes in the electrostatics of an artificial lipid membrane monolayer, generated oppositely from where alamethicin - a model voltage-gated ion channel - was added, altered peptide activity. We found that phlorizin, a membrane dipole potential lowering amphiphile, augmented alamethicin activity and transport features, whereas the opposite occurred with RH-421, which enhances the monolayer dipole potential. Further, the monolayer surface potential was decreased via adsorption of sodium dodecyl sulfate, and demonstrated that vectorial modification of it also affected the alamethicin activity in a predictive manner. A new paradigm is suggested according to which asymmetric changes in the monolayer dipole and surface potential extend their effects spatially by altering the intramembrane potential, whose gradient is sensed by distantly located peptides.
Subjectivity and Objectivity in Science: An Educational Approach  [PDF]
Constantina Stefanidou, Constantine Skordoulis
Advances in Historical Studies (AHS) , 2014, DOI: 10.4236/ahs.2014.34016
Abstract: The subjectivity and objectivity of science are strongly associated to the nature of science, which is part of science education curricula worldwide. The issue under research is how an epistemological issue, like objectivity and subjectivity in science, could be introduced in science classes, so as to reflect the most realistic image of science. Following this line in the present study, concepts were related to what students and teachers should know, science education research and policy documents were explored, and current views within the philosophy of science were briefly summarized. We propose a distinction between the partially subjective scientific process and the rather objective end result of scientific inquiry as a schema promoting better understanding in science education. Intersubjectivity and critical transformation are then proposed as concepts which can enhance this schema. The history of science provides a suitable framework for teaching these ideas in science classes.
Employer Branding and Corporate Social Responsibility – a postmodern approach
Essachess : Journal for Communication Studies , 2009,
Abstract: In the present article we designed an exploratory analysis from a postmodern perspective on employer branding and corporate social responsibility in order to overcome the disciplinary dogmatic approach that is found in the organizational and management studies. Our approach is based on investigating theoretical background for the two concepts that have a relatively recent history and it emphasizes their role of legitimation micro-structures with an organizational -corporate nature, arguing for the thesis that they represent founding micronarratives, with different histories, but similar aims.
Expression of Advanced Glycation End-Products on Sun-Exposed and Non-Exposed Cutaneous Sites during the Ageing Process in Humans
Maria Crisan, Marian Taulescu, Diana Crisan, Rodica Cosgarea, Alina Parvu, Cornel C?toi, Tudor Drugan
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0075003
Abstract: The glycation process is involved in both the intrinsic (individual, genetic) and extrinsic (ultraviolet light, polution and lifestyle) aging processes, and can be quantified at the epidermal or dermal level by histological, immunohistochemical (IHC), or imagistic methods. Our study is focused on a histological and immunohistological comparison of sun-protected regions versus sun-exposed regions from different age groups of skin phototype III subjects, related to the aging process. Skin samples collected from non-protected and UV protected regions of four experimental groups with different ages, were studied using histology and IHC methods for AGE-CML [N(epsilon)-(carboxymethyl)lysine]. A semi-quantitative assessment of the CML expression in the microvascular endothelium and dermal fibroblasts was performed. The Pearson one-way ANOVA was used to compare data between the groups. In the dermis of sun-exposed skin, the number and the intensity of CML positive cells in both fibroblasts and endothelial cells (p<0.05) was higher compared to sun-protected skin, and was significantly increased in older patients. The sun-exposed areas had a more than 10% higher AGE-CML score than the protected areas. No statistically significant correlation was observed between the histological score and the IHC expression of CML. We concluded that in healthy integument, the accumulation of final glycation products increases with age and is amplified by ultraviolet exposure. The study provides new knowledge on differences of AGE-CML between age groups and protected and unprotected areas and emphasizes that endothelium and perivascular area are most affected, justifying combined topical and systemic therapies.
"Qual destas mo?as é você?" o autoconhecimento produzido pelos testes da imprensa feminina
Xavier Filha, Constantina;
Educa??o em Revista , 2007, DOI: 10.1590/S0102-46982007000200014
Abstract: tthis paper aims to make a reflection on the discourses conveyed and produced by a peculiar textual element in the female press: tests. the study is based on gender assumptions and some foucaultian concepts. it intends to discuss statements found in the press (magazines capricho and cláudia) regarding female themes and sexuality in the first decades of the second half of the 20th century. by using prescriptive and normalizing statements, the tests were revealed to act as pedagogical tools whose objective was "to guide female conduct", as they were able to prompt examination and confession, thus making it possible for the inner discourse to be visible and verbalized. the tests indicate concepts of "truth" supported by moral codes and, especially, by precepts based on scientific theories about female conduct. the concept of truth is connected to power systems, pointing to regimes that are not necessarily negative or repressive, but fundamentally productive, as they stimulate reflection and provide personal work possibilities.
Era uma vez uma princesa e um príncipe...: representa??es de gênero nas narrativas de crian?as
Xavier Filha, Constantina;
Revista Estudos Feministas , 2011, DOI: 10.1590/S0104-026X2011000200019
Abstract: gender representations in fairy tales were the focus of an action research with public school children in campo grande, brazil. this paper is part of a larger study, funded by cnpq, which involves two moments: bibliographical reasearch for the selectio and analysis of children's books dealing with sexuality, gender and diversity, and the action research with children and adolescents. in this second moment, the emphasis is on the discussion of narrative and pictorial texts produced by the children and on the reading of the books selected. this paper presents some of the data collected in the second moment of the project. we seek to understand how they construct gender representations based on the physical and behavioral descriptions of princesses and princes in classical fairy tales. we have observed that the representations are connected to socially hegemonic ideals of masculinity and femininity. some resistance appears in the textual productions of the boys. the girls seem to conform to gender norms as ideal and desirable for their personal identities.
Reassessing the Function of Grooves in Mycenaean Tombs
Constantina Katsari,Pavlina Grigoriadou
Papers from the Institute of Archaeology , 2001, DOI: 10.5334/pia.163
Abstract: Among the Chamber and Tholos Tombs that were built in Greece during the Late Helladic period are some that show a particular feature: a pair of grooves that are carved on the floor of the stomion (a short corridor that leads inside the tomb), leading from the dromos (a long road that leads towards the tomb itself) into the chamber. Archaeologists have suggested a number of explanations regarding their function; however, none of these seems entirely plausible. In this article, we offer a different kind of hypothesis mostly based on architectural evidence. We will suggest that, rather than being related to ritual practices, the grooves were mainly used to facilitate the construction of the graves.
Constantina Skanavis,Christos Giannoulis
Tourismos : an International Multidisciplinary Journal of Tourism , 2010,
Abstract: Environmental interpretation in Greece is in its infancy as an academic field. There are no nature guides or specific conservation objectives, and there is no professional training for non formal environmental educators and/or interpreters. The a of this paper is to reveal the necessity of integrating environmental interpretation in training of Greek Ecotour guides.The focus is on developing abilities which could enable Greek Ecotour guides to communicate and interpret the significance of the environment, promote minimal impact practices, ensure the sustainability of the natural and cultural environment, and motivate visiting tourists to evaluate the quality of life in relation to larger ecological or cultural concerns. The rationale underpinning this objective is that by providing accurate and effective interpretation of ecotourism sites as well as monitoring and modelling environmental responsible behaviour, the outcome will be to promote positive impacts of tourism and alleviate negative ones Local community will be encouraged to participate in environmental management of ecotourism settings. Furthermore, connecting ecotourism commitment to returning benefits, particularly economic and employment ones to local communities, it stresses that training local people to be interpretive guides, helps achieving not only ecological sustainability but also economic sustainability. Once trained, guides may encourage conservation action amongst both tourists and the local community.
Constantina Skanavis,Maria Sakellari
Tourismos : an International Multidisciplinary Journal of Tourism , 2011,
Abstract: Tourism researchers have begun to study the phenomenon of domestic tourism, especially in developing countries. The growth of research interest in domestic tourism in developing countries underpins a stream of research in developed countries. The analysis reveals the appeal of these distinctive forms of tourism, international and domestic with regards to leisure, recreation and tourism patterns, but also highlights potential limitations including the dilemma of how to deal with the question of environmental quality that is affected by prevailing international and domestic tourism activities. Impacts of climate change on domestic and international tourism and environmental impacts caused by domestic and international tourism are highlighted. This paper suggests that Environmental Education is the key to this critical area concerning domestic tourism, international globalized tourism and environmental impacts.

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