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Search Results: 1 - 10 of 2841 matches for " Edson; "
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Population Dynamics of Large Herbivores and the Framing of Wildlife Conservation in Zimbabwe  [PDF]
Edson Gandiwa
Open Journal of Ecology (OJE) , 2014, DOI: 10.4236/oje.2014.47036

This article reviews: 1) The role of natural and human-induced controls in influencing large herbivore populations; 2) how human controls (i.e., policy instruments, incentives and provisions) influence human activities and wildlife conservation; and 3) media framing of wildlife conservation using Zimbabwe as a case study, in particular Gonarezhou National Park and adjacent areas. The review shows that droughts are important in influencing large herbivore populations in semi-arid ecosystems; political instability and economic collapse does not necessarily lead to increased illegal hunting in situations where policy instruments, such as laws, are enforced. A higher perceived effectiveness of Communal Areas Management Programme for Indigenous Resources was partly associated with a decline in human-wildlife conflicts and there was a spill-over effect of frames from the political domain into wildlife conservation following Zimbabwe’s land reforms in 2000. It is concluded that natural bottom-up processes (e.g., droughts) influence large herbivore population dynamics whereas policy instruments, incentives, provisions and societal frames mainly have a top-down effect on wild large herbivore populations in savanna ecosystems.

Discrete Singular Convolution Method for Numerical Solutions of Fifth Order Korteweg-De Vries Equations  [PDF]
Edson Pindza, Eben Maré
Journal of Applied Mathematics and Physics (JAMP) , 2013, DOI: 10.4236/jamp.2013.17002

A new computational method for solving the fifth order Korteweg-de Vries (fKdV) equation is proposed. The nonlinear partial differential equation is discretized in space using the discrete singular convolution (DSC) scheme and an exponential time integration scheme combined with the best rational approximations based on the Carathéodory-Fejér procedure for time discretization. We check several numerical results of our approach against available analytical solutions. In addition, we computed the conservation laws of the fKdV equation. We find that the DSC approach is a very accurate, efficient and reliable method for solving nonlinear partial differential equations.

Carbon Doped Nano-Crystalline TiO2 Photo-Active Thin Film for Solid State Photochemical Solar Cells  [PDF]
Raymond Taziwa, Edson Meyer
Advances in Nanoparticles (ANP) , 2014, DOI: 10.4236/anp.2014.32008

Carbon doped titanium dioxide (C-TiO2) is considered as a promising photocatalytic material due to its optical absorption extended in the visible region compared to pure TiO2. However, in the field of photovoltaic’s, use of C-doped nano-crystalline titanium dioxide (C-TiO2) electrodes for light absorption has been considered to be unnecessary so far. In this context, we report here on the use of C-TiO2 nano-crystalline electrodes in photochemical solar cells devices (PCSC). Carbon doping has reduced the band gap of TiO2 to 2.41 eV and 2.25 eV with increase in the doping extent for the 9 mM C-TiO2 and 45 mM C-TiO2 respectively. The C-TiO2 electrodes were first used as photo electrodes for solar cells, exhibiting JSC of 1.34651 mA/cm2, VOC 0.683 V, FF 50.23% and η 0.46%. for the 9 mM C-TiO2

Psychoanalysis, Mental Health and Drug Issues  [PDF]
Edson Olivari de Castro
Psychology (PSYCH) , 2017, DOI: 10.4236/psych.2017.811119
Abstract: This article aims to discuss some of the problems we can encounter in addressing drug issues, especially in Brazil. It also shows, through the work of some authors, that psychoanalysts must go beyond the frontiers of psychoanalysis itself—overcoming elaborations that individualize the problem through concepts such as personality or structure—to enable a new understanding that can guarantee different strategies of intervention. At the end, it points out questions opened from the indicated problems, which are referring to the discourse of capitalism in the present time.
Social Network and Inter-Organizational Learning: The Case of a Brazilian Cooperative of Fish-Farmers  [PDF]
Andreia Maria Kremer, Edson Talamini
Social Networking (SN) , 2013, DOI: 10.4236/sn.2013.22010
Abstract: The inter-organizational learning approach has shown considerable growth in recent years. The concepts of trust and cooperation between individuals present in the New Economic Sociology (NES) approach of social relations emerge with great emphasis and are gaining prominence as a facilitator and propellant mechanism in transferring knowledge inside networks. This study aims to analyze the learning networks formed by fish-farmers organized into a cooperative to identify the characteristics of the network through structural analysis and identification of its critical actors. The study was performed with thirteen fish-farmers of a cooperative headquartered inMundo Novocounty, which is located inMato Grosso do Sulstate in the Midwest region of Brazil. Questionnaires and interviews with closed and open questions were used to collect the data. Measures of centrality (for individuals), density and reciprocity (in relations between individuals) were obtained from ORA software. The findings revealed that experience exchanges between fish-farmers, events participation, meetings attendance, speech audience and technical advice are the main forms of inter-organizational learning. Results suggest that the network has low levels of cohesion and that it is not taking advantage of its full potential. It was also found that there is a subgroup within the network that presents a high level of cohesion and shared learning based on cooperative informal relationships. Grounded in findings, suggestions for future research are presented.
Aspectos da natalidade no povoamento do centro-oeste paulista, século XIX
Fernandes, Edson;
História (S?o Paulo) , 2010, DOI: 10.1590/S0101-90742010000200013
Abstract: this work approaches the aspects of birth rate in a frontier territory. the west region of s?o paulo province, in its area delimitated by the tietê and the paranapanema rivers, was the frontier of the settlement during great part of the nineteenth century. the analysis from the parish and registry office in "len?óes" (a city in brazil) allowed us to mark out a family description in the frontier. through this, we can see that the illegitimacy was low, smaller rather than in other areas that were used as a parameter, going against what people could expect from a frontier area. the baptisms used to take place in a large quantity at the end of the year (november and december), followed by the initial month, january. there weren't marked seasonal variations related to the baptisms, although october, february and march were the months with less occurrence. while sunday was the preferred day by the parents for such a ceremony, concentrating approximately a third of them, friday was a day to be avoided.
A propósito da "ordem" como atributo da "maneira" em Montaigne
Querubini, Edson;
Kriterion: Revista de Filosofia , 2012, DOI: 10.1590/S0100-512X2012000200016
Abstract: montaigne, in "de l'art de conferer", discusses the criteria to distinguish men according to their capabilities (suffisances). the "manner" of discussing is central to this issue and among its qualities "order" distinguishes itself. the "order" is presented to us by the exposition of its deviations: foolishness ("sottise") and obstinacy ("opiniastreté"). these inadequacies represent both dogmatism and an erroneous way of using knowledge based on memory. we intend to show how order is founded on a kind of judgment which assimilates and penetrates matters and subjects - being it the only way to assure the necessary connection to adequately develop the conversation ("conference").
Mutir?o autogestionário e o contexto da experiência democrática revisitado
Miagusko, Edson;
Caderno CRH , 2011, DOI: 10.1590/S0103-49792011000100012
Abstract: this paper is about the trajectories of the residents of a housing estate on the outskirts of sao paulo made by a self-managed task force. this task force occurred in the context of the democratic experience of the 80s. the hypothesis is that the forms of sociability and the trajectories of these residents, influenced by the discourse of autonomy and participation, are called into question: on the one hand, the possibility of invention, of the production of a house through an autonomous action and, on the other hand, the permeability of that experience to a certain sociability enclosed by the limits determined from outside and inside the its own set. to this end, we made a series of interviews and tried not to lose sight of the context that determines a reduced field of possibilities. this perspective enables one to collect not only the action of these movements, but also how the poorest of the city are organized to confront this social inequality produced in urban areas.
Quando inovar é apelar à tradi??o: a condi??o baiana frente à moderniza??o turística
Farias, Edson;
Caderno CRH , 2008, DOI: 10.1590/S0103-49792008000300011
Abstract: the objective of this paper is to focus the role accorded to tradition as a component of a social-historical dynamics schemed among different groups in salvador, but whose effect defined a way of modernization connected with the crossing of group identities, immaterial and architectural patrimonies, the transit of images and the informational capitalism. such way of modernization defined a touristic experience marked by the uses, by the city and in the city, that are made of space, of memory and of cultural expressions, resources that are decisive and, at the same time, they revolve a land of social-symbolic contradictions that feed the symbolic economy.
Economia e cultura no circuito das festas populares brasileiras
Farias, Edson;
Sociedade e Estado , 2005, DOI: 10.1590/S0102-69922005000300007
Abstract: the purpose of this article is to highlight some aspects that now characterize the convergence of the culture and the economy of symbols and spaces from the setting of a circuit of large festivals crossing different brazilian regions. it is observed how the pattern of this circuit of events creates a broader portrait of the establishment of the service and urban-industrial social structure, within which leisure and entertainment interfere with the level of values and expressions, with effects on the resignification of the realms of memory. on the other hand, it is also considered how those symbolic changes are fundamental to the very dynamics of the business of entertainment goods, in the sense that they articulate affection, endearment and life styles with the schemes of capital rentability.
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