From doubly labelled water to half-life; validating radio-isotopic rubidium turnover to measure metabolism in small vertebrates

The doubly labelled water method (DLW) is widely used to measure field metabolic rate (FMR), but it has some limitations. Here, we validate an innovative technique for measuring FMR by comparing the turnover of isotopic rubidium (86Rb kb) with DLW depletion and the rate of CO2 production (V·co2) measured by flow-through respirometry (FTR) for two dunnart species (Marsupialia: Dasyuridae), Sminthopsis macroura (17 g) and Sminthopsis ooldea (10 g). The rate of metabolism as assessed by V·co2 (FTR) and 86Rb kb was significantly correlated for both species (S. macroura, r2 = 0·81, P = 1·19 × 10-5; S. ooldea, r2 = 0·63, P = 3·84 × 10-4), as was V·co2 from FTR and DLW for S. macroura (r2 = 0·43, P = 0·039), but not for S. ooldea (r2 = 0·29, P = 0·168). There was no relationship between V·co2 from DLW and 86Rb kb for either species (S. macroura r2 = 0·22, P = 0·169; S. ooldea r2 = 0·21, P = 0·253). We conclude that 86Rb kb provided useful estimates of metabolic rate for dunnarts. Meta-analysis provided different linear relationships between V·co2 and 86Rb kb for endotherms and ectotherms, suggesting different proportionalities between metabolic rate and 86Rb kb for different taxa. Understanding the mechanistic basis for this correlation might provide useful insights into the cause of these taxonomic differences in the proportionality. At present, it is essential that the relationship between metabolic rate and 86Rb kb be validated for each taxon of interest. The advantages of the 86Rb technique over DLW include lower equipment requirements and technical expertise, and the longer time span over which measurements can be made. The 86Rb method might be particularly useful for estimating FMR of groups for which the assumptions of the DLW technique are compromised (e.g. amphibians, diving species and fossorial species), and groups that are practically challenging for DLW studies (e.g. insects). © 2013 British Ecological Society.

Report of the Workshop to Provide an Introduction to Basic Techniques for Library Organization and Services

Informe del taller de trabajo de capacitación en métodos de organización de colecciones, especialmente algunas de documentos adquiridos recientemente, y métodos para proveer acceso a la información y mejorar los servicios para los usuarios, en bibliotecas y servicios de información en San Vicente.

A Fundação Nacional Cubano-Americana (FNCA) na política externa dos Estados Unidos para Cuba

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Modernidade e integração na Amazônia: "intelligentsia" e "broadcasting" no entre guerras, 1923 -1937

Modernidade e integração na região chamada Amazônia, vez ou outra, sempre ouvimos na mídia, nos meios intelectuais, entre políticos das mais variadas tendências, do Norte e de outras regiões do país, e surgem questionamentos sobre qual o melhor caminho para a Amazônia. Projetos e ideologias foram criados, normalmente girando em torno das possibilidades de modernidade e integração para a região, há muito considerada reserva de lendas e minérios, o reino da floresta e da "planície", espaço isolado, distante, verdadeiro "vazio" de "éden tropical" ou "inferno verde". Desde os embates na Colônia e no Império sobre integrar ou separar do poder central até aos grandes projetos nos anos de 1970, a intelligentsia local e os meios de comunicação manifestaram ponto de vistas e assumiram, em muitos casos, posicionamentos políticos, principalmente a partir dos séculos XIX e XX. Tentei entrar um pouco nesse debate, reportando-me às primeiras décadas do século XX, e encontrando nesse passado, personagens que espelham os novos atores do presente: os intelectuais e o meio de comunicação mais moderno do entre guerras, ao lado do cinema, o rádio.

Patterns of rDNA and telomeric sequences diversification: contribution to repetitive DNA organization in Phyllostomidae bats

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

Experiências Comparadas na Educação do Campo entre Brasil e Cuba e as Possibilidades de Formação Omnilateral na América Latina

This text aims to present the challenges and opportunities of omnilateral formation in Latin America as elaborated in Villela (2009-2010). This work has the horizon systematize the educational practices of the “Third World “, i.e. originating from the educational experience of Latin America, Africa and Asia. In the struggle for emancipation, these countries have built and are building unique educational practices. In this sense, we start questioning the historical and theoretical topic, omnilateral formation, and deployment, we discuss the Latin American school and omnilateral formation. We question specifically issues relating to intellectual and educational organization working in the “field schools” in Cuba (1960-1975). The issue of “intellectual and organizational culture”, in a Gramscian perspective (Gramsci, 2000), was addressed in several papers throughout our academic career (Villela, 2003, 2008, 2009-2010). In order to further these issues, we address the challenges of formation for children and rural youth in Latin America. By analyzing the educational practices in the education field, emerges the theme of contemporary global justice.

O espaço dos homens plenos: experiência comparada na educação do campo entre brasil e cuba e as possibilidades de formação omnilateral

This text aims to present the challenges and opportunities of omnilateral formation as elaborated in Villela (2009-2010). This work has the horizon systematize the educational practices originating from the educational experience of Brasil and Cuba. In the struggle for emancipation, these countries have built and are building unique educational practices. In this sense, we start questioning the historical and theoretical topic, omnilateral formation, and deployment, we discuss school and omnilateral formation. We question specifically issues relating to intellectual and educational organization working in the field schools in Cuba (1960-1975). The issue of intellectual and organizational culture, in a Gramscian perspective (Gramsci, 2000), was addressed in several papers throughout our academic career (Villela, 2003, 2008, 2009). In order to further these issues, we address the challenges of formation for children and rural youth in Latin America. By analyzing the educational practices in the education field, emerges the theme of contemporary global justice.

A narrativa audiovisual da transmissão direta e ao vivo da copa do mundo da FIFA: comparação entre a televisão analógica e a digital

Pós-graduação em Comunicação - FAAC

O uso do rádio e da TV por instituições religiosas: um fenômeno crescente nos mais variados canais de comunicação

In the present study aimed to study the use of radio and television in Brazil by the various Christian aspects rooted in the country. The main objective was to analyze how the churches define the orientation or the use of strategies of both comprehensive and traditional media vehicles, which are still the most popular mass media, both for the formation of culture and national public opinion in both states and municipalities, which demarcate and retain regional traits that differentiate culturally, economically and socially diverse Brazilian populations. Christian churches are increasingly seeking loopholes and legal facilities, public spaces and broadcast media to facilitate the achievement of followers of their theological ideologies. On the radio, on television and also through social networks of the Internet, pastors, priests, bishops and lay Christians to seek their potential both in public space and home individually, using old and new individual devices and portable reception of audiovisual content. All preachers fiercely competing for space leased the open television networks, in national and local radio stations and invest in the organization of broadcasters Community legalized or informal. The work also aims to study the radio and television concessions in Bauru, to show the failures that occur in broadcasting spectrum management by the federal government and also for the reader to understand what the Constitution says about the use of these vehicles public concession by religious institutions

Introduction to the Software-defined Radio Approach

Telecommunications have been in constant evolution during past decades. Among the technological innovations, the use of digital technologies is very relevant. Digital communication systems have proven their efficiency and brought a new element in the chain of signal transmitting and receiving, the digital processor. This device offers to new radio equipments the flexibility of a programmable system. Nowadays, the behavior of a communication system can be modified by simply changing its software. This gave rising to a new radio model called Software Defined Radio (or Software-Defined Radio - SDR). In this new model, one moves to the software the task to set radio behavior, leaving to hardware only the implementation of RF front-end. Thus, the radio is no longer static, defined by their circuits and becomes a dynamic element, which may change their operating characteristics, such as bandwidth, modulation, coding rate, even modified during runtime according to software configuration. This article aims to present the use of GNU Radio software, an open-source solution for SDR specific applications, as a tool for development configurable digital radio.

Mapping the biosphere: exploring species to understand the origin, organization and sustainability of biodiversity

The time is ripe for a comprehensive mission to explore and document Earth's species. This calls for a campaign to educate and inspire the next generation of professional and citizen species explorers, investments in cyber-infrastructure and collections to meet the unique needs of the producers and consumers of taxonomic information, and the formation and coordination of a multi-institutional, international, transdisciplinary community of researchers, scholars and engineers with the shared objective of creating a comprehensive inventory of species and detailed map of the biosphere. We conclude that an ambitious goal to describe 10 million species in less than 50 years is attainable based on the strength of 250 years of progress, worldwide collections, existing experts, technological innovation and collaborative teamwork. Existing digitization projects are overcoming obstacles of the past, facilitating collaboration and mobilizing literature, data, images and specimens through cyber technologies. Charting the biosphere is enormously complex, yet necessary expertise can be found through partnerships with engineers, information scientists, sociologists, ecologists, climate scientists, conservation biologists, industrial project managers and taxon specialists, from agrostologists to zoophytologists. Benefits to society of the proposed mission would be profound, immediate and enduring, from detection of early responses of flora and fauna to climate change to opening access to evolutionary designs for solutions to countless practical problems. The impacts on the biodiversity, environmental and evolutionary sciences would be transformative, from ecosystem models calibrated in detail to comprehensive understanding of the origin and evolution of life over its 3.8 billion year history. The resultant cyber-enabled taxonomy, or cybertaxonomy, would open access to biodiversity data to developing nations, assure access to reliable data about species, and change how scientists and citizens alike access, use and think about biological diversity information.

A cognitive approach to Berber-Tamazight sociocultural reality : the bioconceptual organization of Izri poetics by Tarifit-speaking Riffian women

Programa de doctorado: Nuevas perspectivas cognitivas en los estudios de lengua, litaretura y traducción.