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Search Results: 1 - 10 of 2631 matches for " Tiago Pavan Beltrame "
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Guandu bean (Cajanus cajan (L.) Millsp.) on tropical forest restoration/ Feij o guandu (Cajanus cajan (L.) Millsp.) na restaura o de florestas tropicais
Tiago Pavan Beltrame,Efraim Rodrigues
Semina : Ciências Agrárias , 2007,
Abstract: This work aims to evaluate alternative models in forest restorations by means of agroforestry systems, where a leguminous species is incorporated to the system. The hypothesis is that guandu bean Cajanus cajan (L.) Millsp., in combination and intercropped with native species, can promote restoration by decreasing mortality and increasing tree basal area and height. Cajanus cajan was planted in line with the forest seedlings in 2 x 4 m spacing. Four different treatments were analyzed; 1) control, with no Cajanus cajan ; 2) one seedling of Cajanus cajan between the forest seedlings in the plantation line; 3) two seedlings of Cajanus cajan between the forest seedlings in the plantation line; and 4) full harvest Cajanus cajan six months after plot implementation. In each treatment, 100 native trees (Fifty pioneer, and fifty non pioneer trees) were measured and evaluated in mortality rates, height, and basal diameter. Guandu planting reduced pioneer mortality, increased basal area, and tree height of all species. In spite of the mortality was not affected by guandu density, the density of one plant of guandu was associated with larger basal area and tree average height. The mortality reduction of non pioneers on the absence of guandu trees was interpreted as a response of antropic pioneers to the increased solar radiation. This result points to the differences in tree behavior between fertile gaps (on which the classification on sucessional stages was based) and degraded areas. The positive effects of guandu planting recommend its use for the ecological restoration cost reduction. O objetivo deste trabalho é avaliar formas alternativas de restaura o de áreas degradadas, utilizando sistemas agroflorestais com uma espécie leguminosa incorporada ao sistema. A hipótese é que o feij o guandu (Cajanus cajan (L.) Millsp.) possa auxiliar o processo de restaura o, diminuindo a mortalidade e aumentando a altura e área basal das árvores. O feij o guandu foi plantado na linha de plantio florestal, entre as espécies florestais nativas da regi o, que foram plantadas em espa amento 2 X 4m. Foram avaliados quatro tratamentos: plantio florestal sem feij o guandu (testemunha); uma planta de feij o guandu consorciado entre duas plantas de espécies florestais; duas plantas de feij o guandu consorciado entre duas plantas de espécies florestais; e corte raso aos seis meses após o plantio do feij o guandu consorciado com as espécies florestais. Em cada tratamento, foram sorteados 100 indivíduos sendo 50 pioneiras e 50 n o pioneiras, nos quais foram medidos mortalidade, altura e
Avalia??o econ?mica de sistemas agroflorestais implantados para recupera??o de reserva legal no Pontal do Paranapanema, S?o Paulo
Rodrigues, Elisangela Ronconi;Cullen Jr., Laury;Beltrame, Tiago Pavan;Moscogliato, Antonio Vicente;Silva, Ivan Crespo da;
Revista árvore , 2007, DOI: 10.1590/S0100-67622007000500018
Abstract: pontal do paranapanema, in western s?o paulo state, is a well-known region in brazil mainly due to the land conflicts mobilized by the mst (movement of landless rural workers). this land reform movement has changed the rural landscape, where small forest fragments are today surrounded by human settlements. the s?o paulo state forest code foresees that these settlements, as well as any rural property, must keep 20% of its area covered by natural vegetation. this area, so-called legal reserve, must be restored if their original vegetation had been removed or impacted. thus, this research was carried out in santa zelia settlement, in pontal do paranapanema, located within 15 hectares of legal reserve. six families of this settlement were involved in an agroforestry project, using temporary taungya agroforestry modules, where native trees were intercropped with annual crops. two variables had been used for the economic evaluation of the agricultural production in the area: liquid present value (vpl) and benefit-cost ratio (rb/c). the results show positives values for all the analyzed families, leading to the conclusion that agroforestry systems can be adopted in the recovery of areas of legal reserve in rural properties. its economic viability will mainly depend on intensifying the intercropping and satisfactory market prices for the annual crops.
FLORISTIC AND PHYTOSOCIOLOGICAL ANALYSIS IN A RESTORED AREA OF RIPARIAN FORESTS IN PONTAL DO PARANAPANEMA, S O PAULO’STATE = FLORíSTICA E FITOSSOCIOLOGIA DE UMA áREA DE VEGETA O CILIAR RESTAURADA NO PONTAL DO PARANAPANEMA, S O PAULO
Elisangela Ronconi Rodrigues,Reinaldo Monteiro,Laury Cullen Junior,Tiago Pavan Beltrame
Holos Environment , 2011,
Abstract: The Pontal do Paranapanema, region located in the western range of the S o Paulo’State is characterized by recent forest destruction, and actions are needed for forest restorations and landscape conservation for the biodiversity conservation in the region. Thus, this research had the objective to carry a floristic and phytosociological analysis in 81 hectares of restored area of permanent preservation, by the parcels method. The results showed the presence of 55 species distributed in 23 botanical families. Despite the planted species number be lower than the recommended by legislation, the species presented are charicterized by the Bioma Semideciduous Seasonal Forest, and could represent the basis for natural forest succession in the area. = O Pontal do Paranapanema, extremo oeste do Estado de S o Paulo, é marcado pela recente devasta o florestal, e a es que visam à recupera o de áreas onde outrora havia cobertura florestal tornam-se indispensáveis para a conserva o da biodiversidade na regi o, principalmente quando se trata de áreas de Preserva o Permanente. Diante do exposto, esta pesquisa teve como objetivo realizar um levantamento florístico e fitossociológico em uma área de 81 hectares de preserva o permanente, restaurada pelo método de parcelas. Os resultados mostraram a presen a de 55 espécies distribuídas em 23 famílias botanicas. Apesar do número de espécies estar abaixo do recomendado pela legisla o competente, as espécies presentes na área s o adequadas a uma área de influência ripária do bioma Floresta Estacional Semidecidual, o que garante o início do desenvolvimento do plantio e serve como base para desencadear o processo de sucess o secundária na área.
Transformaciones en el Complejo Lácteo Argentino: La mediería como forma social de trabajo
Beltrame,Florencia;
Mundo agrario , 2010,
Abstract: the transformations of the dairy sector and rural social structure in argentina have been taking place along the last decades. this process meant a profound restructuring of the pampas region. throughout this work, we will see how the processes of technological change and restructuring resulted in a transformation of the "mediería" as a social and labor relation. it means, the relations of "mediería" had transformed according to the new requirements of the dairy production clusters. in summary, in this work we will discuss the transformations of the labor organization in the dairy sector in argentina as a result of the modernization processes.
Transformations in the Argentine dairy sector. The "mediería"as work social form Transformaciones en el Complejo Lácteo Argentino. La mediería como forma social de trabajo
Florencia Beltrame
Mundo agrario , 2010,
Abstract: The transformations of the dairy sector and rural social structure in Argentina have been taking place along the last decades. This process meant a profound restructuring of the pampas region. Throughout this work, we will see how the processes of technological change and restructuring resulted in a transformation of the "mediería" as a social and labor relation. It means, the relations of "mediería" had transformed according to the new requirements of the dairy production clusters. In summary, in this work we will discuss the transformations of the labor organization in the dairy sector in Argentina as a result of the modernization processes. El complejo lácteo argentino y la estructura social rural en su conjunto, han experimentando importantes transformaciones en las últimas décadas, llevando a una profunda reestructuración del agro pampeano. A lo largo del presente trabajo, veremos cómo los procesos de cambio tecnológico y reestructuración de la actividad, tuvieron como consecuencia no el reemplazo o desplazamiento, sino más bien la transformación de la figura de la mediería como forma social del trabajo. ésta última, debió transformarse de acuerdo a los nuevos requerimientos del sistema alimentario. De esta forma, analizaremos la forma que adquirió la organización del trabajo en el complejo lácteo como consecuencia de los procesos de modernización.
Direct Dark Matter search with the XENON program
Paolo Beltrame
Physics , 2013,
Abstract: We present the most recent results from XENON100, the current phase of the XENON dark matter search program. XENON100 is a dual phase time-projection chamber operated at the Laboratori Nazionali del Gran Sasso (LNGS) whose ultra-low electromagnetic background, about 5 x 10^-3 events/(kg x day x keV), allowed to set the most stringent limit to date, excluding WIMP-nucleon spin-independent interaction down to cross-sections of 2 x 10^-45 cm^2 for a 55 GeV/c^2 mass at 90% confidence level and 3.5 x10^-40 for 45 GeV/c^2 in the spin-dependent interaction with neutrons. We also introduce the status and physics goal of XENON1T, the next phase of the program, which will be able to achieve sensitivity down to 2 x 10^-47 cm^2 for a WIMP of 50 GeV/c^2.
An Introduction to RFID Technology  [PDF]
Sanjay Ahuja, Pavan Potti
Communications and Network (CN) , 2010, DOI: 10.4236/cn.2010.23026
Abstract: RFID technology emerged some time back and was not used that much because of lack of standardization and high costs. Latest technologies have brought costs down and standards are being developed. Today RFID is mostly used as a medium for numerous tasks including managing supply chains, tracking livestock, preventing counterfeiting, controlling building access, and supporting automated checkout. The use of RFID is limited by security concerns and delays in standardization. This paper describes RFID technology and its applications in today’s world.
Trucks at Roundabouts: A Synthesis Study  [PDF]
Pavan Kumar Chevuri
Journal of Transportation Technologies (JTTs) , 2018, DOI: 10.4236/jtts.2018.81004
Abstract: Roundabouts in United States and other countries have been proved to be very successful, effective, and a safe traffic control treatment. Roundabouts in the context of regularly expected truck configuration have also been successful for effective roundabout designs; however, there are always some site specific issues for trucks accommodation at roundabouts. Therefore, there is a great need for an informational guide in the form of synthesis report for roundabout designs specific to unique trucking traffic activity. While there are not significant literatures and studies in this subject, there are few studies/reports spread out which address various issues in this subject area. This study attempts to synthesize the research and knowledge of truck accommodation at roundabouts by synthesizing various research studies, reports, and articles; various subject areas such as roundabout designs for trucking activity, roundabout designs and accommodation strategies for specialized trucking activity such as oversized trucks, truck safety at roundabouts, and motor carrier perspective of trucking at roundabouts have been analyzed and relevant knowledge has been synthesized. This synthesis can be useful o researchers, designers, planners, and decision makers to determine effective ways to address specific trucking related issues at a roundabout.
Currículo e multiculturalismo: re?ex?es para a forma??o de educadores
Pavan,Ruth;
Revista Lusófona de Educa??o , 2010,
Abstract: this article is a result of a research project associated with the graduate studies program in education of the dom bosco catholic university. its goal is to understand the re?ection on the school curriculum made by basic education teachers and, on the basis of the results, to discuss the need for multicultural training. it starts with a discussion of teachers’ re?ections and highlights the various approaches to the school curriculum in the history of education.then it characterizes the educators’ re?ection in its relation to the curriculum and concludes by emphasizing the need for multicultural training.
Neutrino masses and neutrinoless double-beta decay
Pavan, Maura;
Revista mexicana de física , 2008,
Abstract: the potentialities of double beta decay experiments in the field of neutrino study are here discussed. sensitivity and results are compared with the information coming from oscillation, cosmology and beta decay measurements.
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