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Search Results: 1 - 10 of 8289 matches for " Teresa Catramby "
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De qué depende el éxito de las investigaciones en turismo?: La experiencia de especialistas brasile os The Success of Research in Tourism Depends on What? The Experience of Brazilian Experts.
Teresa Catramby,Roberto Bartholo,Maurício César Delamaro
Estudios y perspectivas en turismo , 2013,
Abstract: La producción de conocimiento depende de elementos objetivos y subjetivos, se produce en ambientes estructurados y en las relaciones interpersonales y sufre la interferencia del poder de las instituciones y de la capacidad de las personas para recolectar contribuciones de diferentes áreas. Esta complejidad forma parte de los atractivos y los desafíos de la investigación, la ense anza y la extensión en turismo. En este trabajo primeramente se realizó un relevamiento de la producción de tesis y disertaciones de programas de posgrado del Estado de Rio de Janeiro. La segunda etapa consistió en la identificación y jerarquización de los aspectos más importantes que interactúan y actúan en el sistema de creación, aprendizaje y aplicación de conocimiento producido en los cursos de posgrado en los cuales el turismo es su objeto de estudio. Para esta etapa se consultaron especialistas brasile os en investigación en turismo: líderes de grupos, coordinadores de programas y orientadores experimentados. Como resultado se logró la identificación y jerarquización de los Factores Críticos que se son bien administrados y bien cuidados y potencian las posibilidades de éxito en la investigación en turismo. Pueden contribuir a mejorar las evaluaciones institucionales internas y/o externas y disminuir su grado de artificialidad y mimetismo en relación a otras áreas del conocimiento. The production of knowledge depends on objective and subjective elements it occurs in structured environments and in interpersonal relations, is interfered with the power of institutions and people's ability to collect contributions from different areas of knowledge. This complexity is part of the charms and challenges in research, teaching and extension in Tourism. In this study, we sought to first conduct a survey of theses and dissertations in graduate programs in the State of Rio de Janeiro. The second step consisted of identifying and prioritizing the most important aspects that interact and operate the system for creating, learning and application of knowledge produced in post-graduate programs that have tourism as an object of study. For this step Brazilian experts were consulted in research in tourism: group leaders, program coordinators, experienced tutors. As a result, it was the identification and prioritization of Critical Factors that if well managed and well maintained, enhance the chances of success in tourism research. They can contribute to improve the institutional reviews, whether internal and / or external, and reduce the degree of artificiality and imitation in relation to ot
Greedy Friensdhip Decompositions of Graphs  [PDF]
Teresa Sousa
Open Journal of Discrete Mathematics (OJDM) , 2011, DOI: 10.4236/ojdm.2011.11004
Abstract: A graph that consists of t cliques sharing a vertex v is said to be a t-friendship graph with center v. A friendship graph is a graph that is t-friendship for some . We solve the problem of finding the best upper bound for the size of a greedy 2-friendship decomposition and a greedy friendship decomposition of graphs of order n.
The H-Decomposition Problem for Graphs  [PDF]
Teresa Sousa
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.311237
Abstract: The concept of H-decompositions of graphs was first introduced by Erd?s, Goodman and Pósa in 1966, who were motivated by the problem of representing graphs by set intersections. Given graphs G and H, an H-decomposition of G is a partition of the edge set of G such that each part is either a single edge or forms a graph isomorphic to H. Let Ф(n,H) be the smallest number Ф, such that, any graph of order n admits an H-decomposition with at most Ф parts. The exact computation of Ф(n,H) for an arbitrary H is still an open problem. Recently, a few papers have been published about this problem. In this survey we will bring together all the results about H-decompositions. We will also introduce two new related problems, namely Weighted H-Decompositions of graphs and Monochromatic H-Decom- positions of graphs.
4-Cycle Decompositions of Graphs  [PDF]
Teresa Sousa
Open Journal of Discrete Mathematics (OJDM) , 2012, DOI: 10.4236/ojdm.2012.24024
Abstract: In this paper we consider the problem of finding the smallest number such that any graph G of order n admits a decomposition into edge disjoint copies of C4 and single edges with at most elements. We solve this problem for n sufficiently large.
Justification of public investment initiatives on water transfer systems as an instrument for water balances in Spain: the case of the Júcar–Vinalopó water transfer system  [PDF]
Martin Sevilla, Teresa Torregrosa
Agricultural Sciences (AS) , 2011, DOI: 10.4236/as.2011.24067
Abstract: One of the most controversial issues in recent years in water management has been finding a balance between available resources and water needs related to certain territories. The changes brought about by a new awareness over the need to preserve the environment, the social perception of the ownership of the river channels, the need for adjust financial costs arising from the waterworks and the compliance with European standards urgently require redesign of water supply policies in force at this time. The Júcar-Vinalopó water transfer, considered as an historic aspiration for many years in the region, has been regarded as a key element for solving the depletion of groundwater in a large area located in the southeast of the Iberian Peninsula, mainly for irrigation purposes. In this paper we present an approach to the economic aspects related to the implementation of the project, its investment and financing arrangements and the question of the subsequent management with the impact of the well-known “recovery cost principle", highlighting the current difficulties in carrying out projects of this size, due to severe limitations, as social and economic conditions of the transfer.
Phosphoinositide and phospholipid phosphorylation and hydrolysis pathways
—Organophosphate and organochlorine pesticides effects

Teresa Fonovich, Gladis Magnarelli
Advances in Biological Chemistry (ABC) , 2013, DOI: 10.4236/abc.2013.33A004

Phospholipid and phosphoinositide phosphorylation pathways have been shown to be of crucial importance on producing lipid mediators. The earlier findings reported on lipid molecules playing roles in different metabolic pathways used to assign them the exclusive role of second messenger generators. Several researchers have recently described how direct interaction of phospholipids and phosphoinositides with molecules or organelles, without the need for producing second messenger molecules, is responsible for their mechanism of action. Organophosphate and organochlorine pesticide toxicity mechanisms have been extensively studied in relation to their well known effects on cholinesterase activities and on the alterations of electric activity in the nervous system of different organisms respectively. There is little but consistent evidence that some compounds, including in both groups of pesticides, are also able to interact with phospholipid and phosphoinositide phosphorylation pathways in several organisms and tissues. The present review consists of an actualization of basic research on phospholipid and phosphoinositide phosphorylation and hydrolysis pathways, as well as a description of some reported evidences for the effects of the above mentioned pesticides on them.

Protein phosphorylation pathways disruption by pesticides  [PDF]
Gladis Magnarelli, Teresa Fonovich
Advances in Biological Chemistry (ABC) , 2013, DOI: 10.4236/abc.2013.35050
Abstract: Phosphosites in the human proteome represent an excellent source of potential biomarkers of pesticide toxicity. In fact, experimental animal models as well as in vitro studies have revealed phosphorylation disruption associated to metabolic regulation, hormone signaling, neuronal function and differentiation, cell survival and death. Due to their estrogen-mimicking ability, pesticides are considered as prime etiological suspects of increasing tumor incidence. Evidences of alterations in the signal transduction pathways involved in the tumor progression stage of pesticides were also provided. Despite progress in understanding the effect of pesticides on the human phosphorproteome and their health outcomes, it remains a complex issue to be studied. By now, the potential impact of pesticides in epigenetic phosphorylation pathways remains poorly explored. In addition, studies involving pesticides mixtures effects are needed. This review updates and provides a comprehensive discussion on the molecular and biochemical events underlying protein phosphorylation pathway disruption caused by pesticides most frequently detected in human tissues and fluids, such as organochlorine pesticides and organophosphates. The link between epidemiological studies and experimental approaches is also considered. Future challenges, such as micro-array phosphoproteome studies to complement gene expression arrays to understand the mechanisms involved in pesticide toxicology are briefly discussed.
Charting the Course for Sustainable Small Island Tourist Development  [PDF]
Teresa L. McKee
Journal of Environmental Protection (JEP) , 2013, DOI: 10.4236/jep.2013.43030

This article, Charting the Course for Sustainable Small Island Tourist Development, addresses sustainability criteria for small island tourist development drawing on the history of development in the last decade in the Bocas del Toro archipelago of the Republic of Panama in the Caribbean Sea near the border of Costa Rica. Tax deferments for the development of vacation and resort properties spurred a boom in this island locale since the late 1980’s. Tourist Law 8 of the Panamanian constitution is referenced. Sustainability criteria of water supply and availability are suggested and outer island projects are discussed. Lessons are outlined and recommendations are made for permit qualifications that promote sustainable small island tourist development.

Robert Mayer: Conservation of Energy and Venous Blood Colour  [PDF]
Teresa Rocha-Homem
Advances in Historical Studies (AHS) , 2015, DOI: 10.4236/ahs.2015.44020
Abstract: The concept of conservation and transformation of energy was proposed by the 19th century doctor, Robert Mayer. This concept derives from a clinical observation. During the 1st centennial celebrations, the medical profession posed the question of whether Mayer had indeed observed what he claimed and took as the basis of the principle of conservation of energy: if the colour of venous blood in the tropics was lighter than in colder regions, then this was a result of a higher oxygen consumption to maintain body temperature. In this paper, it was shown that, based on Mayer’s data and contemporary physiology, this observation could indeed have occurred but for a different reason.
Legal Concepts and Multilingual Contexts in Digital Information  [PDF]
Daniela Tiscornia, Maria Teresa Sagri
Beijing Law Review (BLR) , 2012, DOI: 10.4236/blr.2012.33010
Abstract: Analysis of legal documents cannot be reduced to their linguistic expression. When dealing whit legal texts a distinction should be made between the linguistic form (normative statement) and the content (norm). Norms are conceived as the interpreted meaning of linguistic contexts (partitions in a legal text, fragments of judicial decisions, etc). In the interpretative process, legal practitioners make reference to an external system of concepts that can be assumed, even if not universal, at least shared by a large social and cultural community. As a consequence, legal interpretation and legal conceptualization are strongly influenced by cultural, social and political factors and changes in meaning of legal concepts occur within a synchronic localization in different cultures and within a diachronic evolution process of the environment in which they are created. This dynamic nature of legal knowledge poses serious problems in communicating legal information, and even more in the realm of digital communication, where, in order to manage knowledge across national borders, there is a strong demand of shared vocabularies embedding a shared understanding of legal concept. This paper aims at showing how lexical/terminological resources and conceptual structures, such as ontologies, can be constructed by means of the innovative tools provided by ICT, like the Semantic Web languages, the computational linguistic and the ontology engineering techniques. Such semantic resources may have a strategic role in representing meaning evolution and in investigating social and cultural influences in linguistic uses and, as a further goal, solutions offered by ICT for bridging the gap between form and content can also provide innovative visions of theoretical issues.
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