Fenced in: Common property struggles in the management of communal rangelands in central Eastern Cape Province, South Africa

This paper takes as its starting point the assertion that current rangeland management in the central Eastern Cape Province (former Ciskei) of South Africa, is characterised primarily by an ‘open access’ approach. Empirical material drawn from three case-study communities in the region is used to examine the main barriers to management of rangeland as a ‘commons’. The general inability to define and enforce rights to particular grazing resourses in the face of competing claims from ‘outsiders’, as well as inadequate local institutions responsible for rangeland management are highlighted as being of key importance. These are often exacerbated by lack of available grazing land, diffuse user groups and local political and ethnic divisions. Many of these problems have a strong legacy in historical apartheid policies such as forced resettlement and betterment planning. On this basis it is argued that policy should focus on facilitating the emergence of effective, local institutions for rangeland management. Given the limited grazing available to many communities in the region, a critical aspect of this will be finding ways to legitimise current patterns of extensive resource use, which traverse existing ‘community’ boundaries. However, this runs counter to recent legislation, which strongly links community management with legal ownership of land within strict boundaries often defined through fencing. Finding ways to overcome this apparent disjuncture between theory and policy will be vital for the effective management of common pool grazing resources in the region.

A niche-based framework to assess current monitoring of European forest birds and guide indicator species' selection

Concern that European forest biodiversity is depleted and declining has provoked widespread efforts to improve management practices. To gauge the success of these actions, appropriate monitoring of forest ecosystems is paramount. Multi-species indicators are frequently used to assess the state of biodiversity and its response to implemented management, but generally applicable and objective methodologies for species' selection are lacking. Here we use a niche-based approach, underpinned by coarse quantification of species' resource use, to objectively select species for inclusion in a pan-European forest bird indicator. We identify both the minimum number of species required to deliver full resource coverage and the most sensitive species' combination, and explore the trade-off between two key characteristics, sensitivity and redundancy, associated with indicators comprising different numbers of species. We compare our indicator to an existing forest bird indicator selected on the basis of expert opinion and show it is more representative of the wider community. We also present alternative indicators for regional and forest type specific monitoring and show that species' choice can have a significant impact on the indicator and consequent projections about the state of the biodiversity it represents. Furthermore, by comparing indicator sets drawn from currently monitored species and the full forest bird community, we identify gaps in the coverage of the current monitoring scheme. We believe that adopting this niche-based framework for species' selection supports the objective development of multi-species indicators and that it has good potential to be extended to a range of habitats and taxa.

Phylogeny and ecology determine morphological structure in a snake assemblage in the central Brazilian Cerrado

To investigate the role of ecological and historical factors in the organization of communities, we describe the ecomorphological structure of an assemblage of snakes (61 species in six families) in the Cerrado (a savanna-like grassland) of Distrito Federal, Brazil. These snakes vary in habits, with some being fossorial, cryptozoic, terrestrial, semi-aquatic, or arboreal. Periods of activity also vary. A multivariate analysis identified distinct morphological groups associated with patterns of resource use. We report higher niche diversification compared to snakes in the Caatinga (a semi-arid region in northeastern Brazil), with fossorial and cryptozoic species occupying morphological space that is not occupied in the Caatinga. Monte Carlo permutations from canonical phylogenetic ordination revealed a significant phylogenetic effect on morphology for Colubridae, Colubrinae, Viperidae, Elapidae, and Boidae indicating that morphological divergence occurred in the distant past. We conclude that phylogeny is the most important factor determining structure of this Neotropical assemblage. Nevertheless, our results also suggest a strong ecological component characterizes a peculiar snake fauna.

Towards high-resolution shell midden archaeology: Experimental and ethnoarchaeology in Tierra del Fuego (Argentina)

This paper discusses the ongoing ethnoarchaeological research carried out in Yamana shell middens of Tierra del Fuego. Ethnoarchaeology is used in this research as a tool to improve the archaeological methodology by testing it against anthropological, ethnographical and ethnological sources for achieving more accurate reconstructions of past societies. The ethnographical/ethnological information also is coupled with an experimental approach devised to understand physical and social processes, such as site formation processes and resource use and management. Specifically, this experimental approach was applied to the archaeological sites Tunel VII and Lanashuaia I (Tierra del Fuego, Argentina). (C) 2011 Elsevier Ltd and INQUA. All rights reserved.

Usual clinical practice for early supported discharge after stroke with continued rehabilitation at home : an observational comparative study

Introduction: Based on randomised controlled trials, evidence exists that early supported discharge (ESD) from the hospital with continued rehabilitation at home has beneficial effects after stroke; however, the effects of ESD service in regular clinical practice have not been investigated. The purpose of the current study was to compare ESD service with conventional rehabilitation in terms of patient outcomes, caregiver burden at 3 and 12 months and the use and costs of healthcare during the first year after stroke. Material and methods: This study was a subgroup analysis of a longitudinal observational study of patients who received care in the stroke unit at Karolinska University Hospital in Sweden. Patients who met the inclusion criteria for ESD in previous experimental studies were included. The patients were referred to available rehabilitation services at discharge, and comparisons between those who received ESD service (the ESD group, n = 40) and those who received conventional rehabilitation (the NoESD group, n = 110) were performed with regard to independence in activities of daily living (ADL), the frequency of social activities, life satisfaction, and caregiver burden and the use and costs of healthcare during the first year after stroke. Results: At 3 and 12 months, no differences were observed with regard to patient outcomes; however, ESD was associated with a lower caregiver burden (p = 0.01) at 12 months. The initial length of stay (LOS) at the hospital was 8 days for the ESD group and 15 days for the NoESD group (p = 0.02). The median number of outpatient rehabilitation contacts was 20.5 for the ESD group (81% constituting ESD service) and 3 for the NoESD group (p<0.001). There was no difference between the groups with regard to overall healthcare costs. Conclusions: ESD service in usual clinical practice renders similar health benefits as conventional rehabilitation but a different pattern of resource use and with released capacity in acute stroke care.

As universidades corporativas e sua contribuição para a gestão do conhecimento nas organizações

O contexto atual da sociedade do conhecimento impulsiona as organizações e seus profissionais a buscarem novas de formas de agir para se manterem competitivos. Nessa sociedade, a inteligência, a criatividade e o próprio conhecimento são recursos produtivos essenciais. Às organizações, cabe um esforço no sentido do desenvolvimento de iniciativas para a geração de valor a partir desses recursos intangíveis. Aos profissionais, cabe buscar sua contínua recapacitação, atendendo à necessidade de atuarem como trabalhadores do conhecimento. As universidades corporativas surgiram nesse contexto, como uma abordagem estratégica para a atividade de treinamento e desenvolvimento da organização, acompanhando o realinhamento do sistema de Recursos Humanos, que assumiu um caráter mais estratégico e voltado para o negócio. Os objetivos dessa pesquisa envolvem a compreensão do que são e como funcionam as universidades corporativas no Brasil, analisando seu papel na gestão do conhecimento da organização. Verificou-se que essas instituições são uma evolução do sistema de treinamento e desenvolvimento e não atuam, ainda, como gestoras do conhecimento organizacional. A denominação "universidade" adotada por elas confere-lhes certo status, contudo constatou-se que as universidades corporativas não exploraram o potencial que conceito de universidade evoca: a permanente geração de novos conhecimentos. Apesar disso, não lhes pode ser negado o mérito de representarem um ponto de partida para que as organizações compreendam o conhecimento como um de seus recursos produtivos principais.

Tempo no trabalho: a experiência dos gerentes médios

A sociologia das organizações ainda é realizada sob a construção de esquemas analíticos livres de tempo (CLARK, 1985; HASSARD, 2000; GIDDENS, 2003). No entanto, questões temporais permeiam toda e qualquer organização, o que torna o conceito de tempo de central importância para os estudos organizacionais. Com base nisso, esta pesquisa teve a ambição de abordar a dimensão temporal do trabalho nas organizações; sob a perspectiva dos indivíduos. E, dado que os gerentes médios vivenciam um duplo foco de pressão: originado da alta gerência e do nível operacional da organização, decidiu-se investigar como os gerentes médios experimentam o tempo no trabalho. Para desvendar a experiência temporal dos gerentes médios, foram analisadas, com a metodologia de análise de conteúdo, entrevistas com 20 profissionais de média gerência que trabalham em empresas que operam na cidade de São Paulo. A coleta do material de pesquisa ocorreu com entrevistas em profundidade semi-estruturadas. A análise das entrevistas sugere que embora o tempo no trabalho seja, por todos os profissionais entrevistados, definido como um recurso econômico, cuja utilização dever ser otimizada ao máximo, a experiência temporal entre os gerentes médios não é homogênea. Há fatores ambientais comuns a todos os entrevistados, que tendem a aproximar as experiências temporais dos mesmos. Tais fatores, que são a compressão do tempo, o sentido de urgência, as novas tecnologias, características intrínsecas ao papel de gerente e a organização de si próprios, das empresas e colaboradores, estão associados ao cenário econômico e social contemporâneo. No entanto, características relacionadas à idade, gênero, valores e experiências pessoais, além do segmento de atuação da empresa também impactam a experiência temporal dos gerentes médios e contribuem para a diversificação da maneira como os gerentes médios experimentam e lidam com as pressões temporais. Em síntese, a despeito dos fatores ambientais compartilhados, com destaque para a crescente compressão do tempo, a natureza humana e a impermanência dos fenômenos sociais desnudam a complexidade da experiência temporal dos gerentes médios no trabalho. E revelam que – apesar da homogeneidade, objetividade e linearidade representadas pelo relógio, ícone do tempo nas sociedades ocidentais contemporâneas – heterogeneidade, subjetividade e ciclicidade fazem parte da experiência temporal dos trabalhadores.

A percepção dos peritos criminais federais sobre as competências necessárias aos cargos de chefia: o caso das unidades descentralizadas de Perícia Criminal Federal

O presente estudo visa conhecer a percepção que os Peritos Criminais Federais do Departamento de Polícia Federal possuem sobre as competências necessárias para aqueles que ocupam cargo de chefia. A amostra é composta por Peritos Criminais Federais com menos de dez anos de profissão no cargo de perito, provenientes do concurso público de 2004 e lotados principalmente nas unidades descentralizadas localizadas em cidades do interior do Brasil, bem como em algumas capitais da região norte. O estudo possui caráter exploratório e descritivo, cujos meios adotados foram a pesquisa de campo, documental, bibliográfica e de estudo de caso. A amostra foi constituída por 33 Peritos Criminais Federais que exercem ou exerceram o cargo de chefia nas unidades da Perícia Criminal Federal. A pesquisa foi realizada por meio de um questionário composto por 75 questões e enviado por meio de correio eletrônico para os respondentes, sendo 54 questões relacionadas as competências técnicas e comportamentais oriundas de um mapeamento de competências realizado pelo Departamento de Polícia Federal focado em todos os servidores. Depois de validados os dados foram submetidos a análise estatística descritiva, não sendo utilizada a analise fatorial devido os dados extraídos das respostas serem em número insuficiente para esta técnica. Os resultados evidenciaram que as competências técnicas e comportamentais mais relevantes associam-se à visão sistêmica, uso de recursos e manejo das atividades, gerenciamento do dia-a-dia e conhecimento sobre os interesses, necessidades e atribuição da Perícia Criminal Federal. Os resultados indicam que existe um hiato entre o planejamento estratégico da Diretoria Técnico Científica e a Diretoria Geral do Departamento de Polícia Federal, sugerindo que o nivelamento da cultura organizacional é necessário na instituição. Os critérios para um Perito Criminal Federal assumir um cargo de chefia não levam em consideração o perfil do indivíduo. O critério adotado, predominantemente é o da conveniência ou antiguidade. Não há, no curso de formação profissional ou durante o exercício do cargo, curso voltado para a área de gestão de competências. No final do estudo são apontadas as limitações da pesquisa.

Ecologia trófica em uma taxocenose de anfíbios: estrutura, filogenia e especialização individual

Historically, ever since the pre-Darwinian naturalists interspecific competition was considered the main force responsible for structuring ecological communities. This interpretation lost strength in the late 70s and throughout the 80s giving room for other views, which consider other factors such as predation, parasitism and the phylogenetic inertia more important. Studies on changes in the trophic niche of a species are still uncommon in general and especially in amphibians. Species considered generalist might actually be a group of individual specialists, or individuals that specialize in a particular category of prey during a period of scarcity of resources, thus reducing intraspecific competition. This work studied the community structure of litter amphibians and trophic variation along the dry and rainy seasons in a population of Leptodactylus macrosternum. Sixteen-litter frog species were studied for their diet. Two central assumptions were tested: 1a) if the community is structured in the niche trophic level, and 1b) if there is a significant difference in the use of food resources by different species (i.e. if the community is structured), the observed structure is the result of ecological interactions or just the current phylogenetic inertia of species. Finally, 2) if there is variation in food resource use between seasons for L. macrosternum. The community showed a structure with respect to the use of food resources, and this structure persisted after taking into account the phylogenetic relationships among species. The diet of Leptodactylus macrosternum varied with the seasons, with a significant degree of individual specialization for the dry season. Patterns of a local community are important to understand its dynamics, and this may play a role in larger- scale processes. Therefore, the studies in community ecology are fundamental to understand and eventually restoring degraded areas

Reproductive migration and population dynamics of the blue crab Callinectes danae in an estuary in southeastern Brazil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Sistema de destilação solar com pré-aquecimento em concentrador cilindro parabólico

Due to the increasing need to promote the use of resources that support the environment and the clean industry, the science has developed in the area of natural resource use as well as enhanced use of the renewable energy sources. Considering also the great need for clean water and wide availability of salt or brackish water, added to the great solar energy potential in northeastern of the Brazil, it was developed a solar distiller whose main difference is its system of pre-solar heating also. From experimental adjustments, the system was developed by the use of a cylindrical solar concentrator coupled to a conventional distiller. The system is designed such that attempt to facilitate the process termination trap to ensure constant movement of the fluid mass and thus enable higher temperatures to the system and thus fetch a higher amount of distillate collected. In a stage of the experiment were used a forced circulation to try to further increase the amount of energy exchange system. To develop the study were set up four settings for comparison in which one was only distiller simple as basic parameter, the second proposed configuration were with the coupling of the concentration triggered manually every 30 minutes to monitor the sun, the third configuration occurred with automatic triggering of a timer, and the fourth configuration was also used a pumping system that tried to improve the circulation of the fluid. With the comparative analysis of the results showed a gain in the amount of distillate system, especially in the forced model

Território usado e transporte coletivo : mobilidade e acessibilidade no Bairro Lagoa Azul Natal/RN

Transport systems involved the use of territory in different Brazilian cities with regard to the occupation of road systems in urban areas. The implementation of systems engineering and transport infrastructure such as roads (roads), signs, stops, stations and complex road (bridges, viaducts and tunnels) are not used in the same way in the area. The subway is not even use the bus and vice versa. The time spent in travel, the time to access and the number of trips made by passengers in each way of transport is not the same. The use of transport systems in the territory, therefore, takes place through a whole in the current period we are in the technicalscientific and informational. This work addresses, however, the area used as a synonym of geographical area, analyzed by two categories of analysis, systems of objects formed by the fixed and the systems formed by the action flows. The system analyzed is the public transport by bus and population displacement that makes using this medium with source destination from home to work and has as empirical cut the Lagoa Azul located in the district administrative area north of Natal / RN. The general objective of this research is to understand the extent to which public transport has contributed to the socio-spatial accessibility of the residents of Barrio Blue Lagoon, located in Natal-RN, emphasizing the way home and the workplace. To reach the general objective of this dissertation, a study was made in light of the line which the methodological empirical facts, statistical data and theoretical knowledge of the events that occur in the quarter related to the Lagoa Azul economic aspects. Use for this, the concepts of mobility and Accessibility

Phylogeography and genetic population structure of Caribbean sharpnose shark Rhizoprionodon porosus

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Populations analysis of the Brazilian Sharpnose Shark Rhizoprionodon lalandii (Chondrichthyes: Carcharhinidae) on the São Paulo coast, Southern Brazil: inferences from mt DNA sequences

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Individual Specialization in the Hunting-wasp Trypoxylon (Trypargilum) agamemnon Richards (Hymenoptera: Crabronidae)

Renan B. Pitilin, Marcio S. Araujo, and Maria L.T. Buschini (2012) Individual specialization in the hunting-wasp Trypoxylon (Trypargilum) agamemnon Richards (Hymenoptera: Crabronidae). Zoological Studies 51(5): 655-662. Individuals of a population may differ with respect to resource use. This among-individual variation in resource utilization is called 'individual specialization' and may substantially impact the ecological and evolutionary dynamics of a population. The aim of this study was to evaluate whether females of 1 population of the hunting-wasp Trypoxylon agamemnon differed in their preferences for spider size and/or taxa. To observe the behavior of wasps, trap-nests were installed in an araucaria forest fragment in the Parque Municipal das Araucarias, Guarapuava (PR), southern Brazil. The indices within-individual component (WIC)/total niche width of a population (TNW) and average of values of the proportional similarity index (IS) were used to measure the degree of individual specialization. We found evidence of strong, significant individual specialization in T agamemnon in terms of both prey size (WIC/TNW = 0.43) and taxa (IS = 0.45). We hypothesized that individual specialization in this species resulted from cognitive tradeoffs that limit individuals to exploring a small subset of available resources. http://zoolstud.sinica.edu.tw/Journals/51.5/655.pdf