28 resultados para Scouting
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The Hornet's Nest Girl Scout Council Records consist of historical files, reports, minutes, correspondence, newsletters, news clippings, programs, and brochures documenting the origin, growth, and development of the Council. Also included are photocopies of scrapbooks.
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This four-color extension circular identifies the different diseases of soybeans: soybean rust, bacterial blight, bacterial pustle, and downy mildew. It also shows diseases that are similar looking: Cercospora blight, Frogeye leaf spot and brown spot. It also discusses what to look for when scouting for soybean rust.
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The needed of new intermediates/products for screening in the fields of drug discovery and material science is the driving force behind the development of new methodologies and technologies. Organic scaffolds are privileged targets for this scouting. Among them a priority place must be attributed to those including nitrogen functionalities in their scaffolds. It comes out that new methodologies, allowing the introduction of the nitrogen atom for the synthesis of an established target or for the curiosity driven researches, will always be welcome. The target of this PhD Thesis’ work is framed within this goal. Accordingly, Chapter 1 reports the preparation of new N-Heteroarylmethyl 3-carboxy-5-hydroxy piperidine scaffold, as potential and selective α-glucosidase inhibitors. The proposed reversible uncompetitive mechanism of inhibition makes them attractive as interesting candidate for drug development. Chapter 2 is more environmentally method-driven research. Eco-friendly studies on the synthesis of enantiomerically pure 1,4-dihydropyridines using “solid” ammonia (magnesium nitride) is reported via classical Hantzch method. Chapter 3 and Chapter 4 may be targeted as the core of the Thesis’s research work. Chapter 3 reports the studies addressed to the synthesis of N-containing heterocycles by using N-trialkylsilylimine/hetero-Diels–Alder (HAD) approach. New eco-friendly methodology as MAOS (Microwave Assisted Organic Synthesis) has been used as witness of our interest to a sustainable chemistry. Theoretical calculations were adopted to fully clarify the reaction mechanism. Chapter 4 is dedicated to picture the most recent studies performed on the application of N-Metallo-ketene imines (metallo= Si, Sn, Al), relatively new intermediates which are becoming very popular, in the preparation of highly functionalized N-containing derivatives, accordingly to the Thesis’ target. Derivatives obtained are designed in such a way that they could be of interest in the field of drug and new material chemistry.
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The transformation of the 1990s has had a bearing on the academic and scientific world, as is becoming increasingly obvious with the changing numbers of foreign students wishing to study in the Czech Republic and of Czech students wishing to study abroad, the virtual collapse of doctoral studies, and the rapidly increasing age of Czech academics (placed at 48 by official sources and at rather more by this research). At the same time there is an apparent lack of interest in analysing and understanding these trends, which Mr. Cermak terms an ostrich policy, although his research showed that academics are in fact both aware and concerned about them. The mid-1990s migration of talent to and from R+D in the Czech Republic is also reflected in the number of talented Czech students studying abroad, who represent the largest and most interesting group of actual and potential migrants. Mr. Cermak's study took the form of a Delphi enquiry participated in by 44 specialists, including experts in the problems of higher education and science policy from the Presidium of the Higher Education Council (n = 23), members of the Council's Science and Research Commission (n = 14), former and current managers of higher education authorities (n = 4) and selected participants of the longitudinal talent research (n = 3). Questions considered included the influence of continuing talent migration from domestic R+D on the efficiency of domestic higher education, the diversification of forms of the brain drain and their impact on other processes in society, the possibility of positive influence on the brain drain processes to minimise the risks it presents, and the use of the knowledge obtained about the brain drain. The study revealed a clear drop of interest in brain drain problems in higher education in the mid-1990s, which is probably related to the collapsed of Czech R+D in the field of talent education. The effects on this segment of the labour market appeared earlier, with a major migration wave in 1991-1993 which significantly "cleared" the area of scientific talent. In addition, prospective talents from the ranks of younger students have not been integrated into domestic R+D, leading to the increasing average age of those working in this field. "Talent scouting" tended to be oriented towards much younger individuals, even in some cases towards undergraduate students. The R+D institutions deprived of human resources considered as basic in a functional R+D system have lost much of their dynamism and so no longer attract not only domestic talent but also talent from other regions. As a result the public, including the mass media and political structures, have stopped regarding the support of domestic science as a priority. This is clear both among the young people who are important for the future development of R+D (support for the education of talented children has dropped), from the drop in the prestige of this area as a profession among university students, and from the lack of explicit support for R+D by any of the political parties. On the basis of his findings Mr. Cermak concludes that there is no basis for the belief that the brain drain will represent a positive force in stimulating the development of the open society. Migration data shows that the outflow of talent from the Czech Republic far exceeds the inflow, and that the latter is largely short-term. Not only has the number of returning Czech professors dropped to half of its level at the beginning of the 1990s, but they also tend to take up only short-term contracts and retain their foreign positions. Recruitment of scientific talent from other countries, including the Slovak Republic, is limited. Furthermore internal contacts between those already involved in R+D have been badly hit by economic pressures and institutional co-operation has dropped to a minimum. There have been few moves to counteract this situation, the only notable one being the Program 250, launched in 1996 with government support to try and attract younger (i.e. under 40) talent into R+D. Its resources are however limited and its effects have not so far been evaluated. The deficit of academic and scientific talent in the Czech Republic is increasing and two major directions of academic work are emerging. Classic higher education science based on the teaching process is declining, largely due to economic factors, while there is an increasing emphasis on special; ad hoc projects which cannot be related directly to teaching but are often interesting to specialists outside the Czech Republic. This is shown clearly by the increase in publishing and in participation in domestic and foreign grant projects, which often serve to supplement the otherwise low salaries in the higher education sector. This tend was also accelerated by the collapse of applied R+D in individual sectors of the national economy and by substantial cutbacks in the Czech Academy of Sciences, which formerly fostered such research. Some part of the output of this research can be used in the education system and its financial contribution does significantly affect the stability of the present staff, but Mr. Cermak sees it as generally unfavourable for the development of talent education. In addition, it has led to a certain resignation on the question of integration into international structures, due to the emphasis on short-term targets, commercial advantages and individualism rather than team work. At the same time, he admits that these developments reflect those in other areas of the transformation in the Czech Republic.
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Vol. 1, chapter 1 printed in 1936.
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"Issued July 1965"--Table of contents.
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Cover title.
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1. The spatial heterogeneity of predator populations is an important component of ecological theories pertaining to predator-prey dynamics. Most studies within agricultural fields show spatial correlation (positive or negative) between mean predator numbers and prey abundance across a whole field over time but generally ignore the within-field spatial dimension. We used explicit spatial mapping to determine if generalist predators aggregated within a soybean field, the size of these aggregations and if predator aggregation was associated with pest aggregation, plant damage and predation rate. 2. The study was conducted at Gatton in the Lockyer Valley, 90 km west of Brisbane, Australia. Intensive sampling grids were used to investigate within-field spatial patterns. The first row of each grid was located in a lucerne field (10 m from interface) and the remaining rows were in an adjacent soybean field. At each point on the grid the abundance of foliage-dwelling and ground-dwelling pests and predators was measured, predation rates [using sentinel Helicoverpa armigera (Hubner) egg cards] and plant damage were estimated. Eight grids were sampled across two summer cropping seasons (2000/01, 2001/02). 3. Predators exhibited strong spatial patterning with regions of high and low abundance and activity within what are considered to be uniform soybean fields. Ground-dwelling and foliage-dwelling predators were often aggregated in patches approximately 40 m across. 4. Lycosidae (wolf spiders) displayed aggregation and were consistently more abundant within the lucerne, with a decreasing trap catch with distance from the lucrene/soybean interface. This trend was consistent between subsequent grids in a single field and between fields. 5. The large amount of spatial variability in within-field arthropod abundance (pests and predators) and activity (egg predation and plant damage) indicates that whole field averages were misleading. This result has serious implications for sampling of arthropod abundance and pest management decision-making based on scouting data. 6. There was a great deal of temporal change in the significant spatial patterns observed within a field at each sampling time point during a single season. Predator and pest aggregations observed in these fields were generally not stable for the entire season. 7. Predator aggregation did not correlate consistently with pest aggregation, plant damage or predation rate. Spatial patterns in predator abundance were not associated consistently with any single parameter measured. The most consistent positive association was between foliage-dwelling predators and pests (significant in four of seven grids). Inferring associations between predators and prey based on an intensive one-off sampling grid is difficult, due to the temporal variability in the abundance of each group. 8. Synthesis and applications. This study demonstrated that generalist predator populations are rarely distributed randomly and field edges and adjacent crops can have an influence on within-field predator abundance. This must be considered when estimating arthropod (pest and predator) abundance from a set of samples taken at random locations within a field.
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Coral diseases were unknown in the scientific community fifty years ago. Since the discovery of a coral disease in 1965, there has been an exponential increase in the number of known coral diseases, as the abundance, prevalence, distribution, and number of host species affected has also significantly increased. Coral diseases are recognized as contributing significantly to the dramatic losses of coral cover on a global basis, particularly in the Caribbean. The apparent sudden emergence of coral diseases suggests that they may be a symptom of an overall trend associated with changing environmental conditions. However, not much evidence has been gathered to address this question. The following studies were designed to build a comprehensive argument to support this hypothesis for one important coral disease—black band disease (BBD). A meta-analysis of clone libraries identifying the microbial communities associated with BBD reveal important information including that a single cyanobacterial operational taxonomic unit (OTU) was by far the most prevalent OTU in diseased samples, and that the alphaproteobacteria, which include some of the most common bacteria in marine waters, were the most diversely represented. The analysis also showed that samples exhibited regional similarities. An fine and ultrastructural characterization of the disease revealed that the cyanobacteria are prolific borers through the coral skeleton, and that the cyanobacteria penetrate coral tissue, leading to their presence ahead of the main migrating disease band. It was further found that apparently healthy corals exposed to toxins found in BBD, exhibited similar tissue degradation to those infected with BBD. Comparing the disease progression to biofilm formation, it was determined that scouting cyanobacteria may contribute to the migration of the disease through progressive biofilm development over intact coral tissue. Together, these studies provide significant evidence for the hypothesis that BBD is an opportunistic disease, caused by common environmental bacteria, facilitated by the changing environmental conditions associated with climate change.
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The last two decades have seen many exciting examples of tiny robots from a few cm3 to less than one cm3. Although individually limited, a large group of these robots has the potential to work cooperatively and accomplish complex tasks. Two examples from nature that exhibit this type of cooperation are ant and bee colonies. They have the potential to assist in applications like search and rescue, military scouting, infrastructure and equipment monitoring, nano-manufacture, and possibly medicine. Most of these applications require the high level of autonomy that has been demonstrated by large robotic platforms, such as the iRobot and Honda ASIMO. However, when robot size shrinks down, current approaches to achieve the necessary functions are no longer valid. This work focused on challenges associated with the electronics and fabrication. We addressed three major technical hurdles inherent to current approaches: 1) difficulty of compact integration; 2) need for real-time and power-efficient computations; 3) unavailability of commercial tiny actuators and motion mechanisms. The aim of this work was to provide enabling hardware technologies to achieve autonomy in tiny robots. We proposed a decentralized application-specific integrated circuit (ASIC) where each component is responsible for its own operation and autonomy to the greatest extent possible. The ASIC consists of electronics modules for the fundamental functions required to fulfill the desired autonomy: actuation, control, power supply, and sensing. The actuators and mechanisms could potentially be post-fabricated on the ASIC directly. This design makes for a modular architecture. The following components were shown to work in physical implementations or simulations: 1) a tunable motion controller for ultralow frequency actuation; 2) a nonvolatile memory and programming circuit to achieve automatic and one-time programming; 3) a high-voltage circuit with the highest reported breakdown voltage in standard 0.5 μm CMOS; 4) thermal actuators fabricated using CMOS compatible process; 5) a low-power mixed-signal computational architecture for robotic dynamics simulator; 6) a frequency-boost technique to achieve low jitter in ring oscillators. These contributions will be generally enabling for other systems with strict size and power constraints such as wireless sensor nodes.
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Este relatório teve como objetivo a sumarização das práticas realizadas de um estagiário na área de Observação e Análise de Jogo do Benfica Lab-Sport Lisboa e Benfica. Consiste neste trabalho a descrição das diversas tarefas operacionais e complementares realizadas por um estagiário na área já referida. Acrescendo a essas descrições, é apresentado em detalhe um estudo de investigação iniciado durante o processo de estágio, tendo sido todos os dados recolhidos nesse período e fornecidos quase exclusivamente pela área de observação e análise do Benfica Lab. Este estudo demonstrou existirem diferenças significativas em medidas de centralidade individuais (nível de intermediação numa rede social; influência numa rede social) da equipa A para a equipa B na mesma posição (posto especifico). A descrição detalhada de todo o processo envolvente à realização de uma conferência (relação com a comunidade), também está presente neste documento, evento esse que teve como seu principal objetivo demonstrar o “Processo de estágio Benfica Lab/ FMH – Observação e Análise de Jogo”.
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Atualmente, a preparação e desenvolvimento de uma equipa de futebol deve considerar não só aspetos relacionados com a metodologia do treino, como também da análise de performance, quer da própria equipa quer de equipas adversárias. O estágio desenvolveu-se integrado nas equipas técnicas que orientaram o plantel profissional do Estoril Praia SAD, durante a época 2014/2015. Na área 1, foi exposto o objetivo principal do trabalho apresentado neste relatório, que se prendeu com a necessidade de compreender de que forma é importante a análise da própria equipa e da equipa adversária, e ainda como essas análises são enquadradas e utilizadas no treino e na competição. Após a recolha de informação na literatura, relativa à análise de performance, e relacionada essa informação com a prática do dia-a-dia e ainda com as opiniões recolhidas através de entrevistas realizadas a dois elementos de uma das equipas técnicas, foi possível perceber a importância da análise na preparação e operacionalização das ideias de jogo da equipa técnica, não só durante os momentos competitivos, como em situações de treino. Na área 2 (Projeto de investigação/inovação) foi realizado um estudo que teve como finalidade perceber o impacto que tem a alteração de um treinador no decorrer da época desportiva, tentando relacionar essas decisões com diferentes contextos, percebendo se a alteração tem uma influência positiva ou negativa no rendimento das equipas contempladas no estudo. Posteriormente à sua realização, o estudo foi apresentado nas Jornadas Portuguesas de Psicologia do Desporto. Relativamente à área 3 (Relação com a comunidade), foi realizado um torneio que teve como principal foco, alertar os pais dos atletas para os valores positivos que podem ser promovidos e desenvolvidos através do desporto.
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A Observação e Análise é uma área em crescimento nos últimos anos. Hoje em dia, a presença de um departamento de Observação e Análise nos clubes é visto como essencial uma vez que, no futebol de alto rendimento, os jogos estão cada vez mais equilibrados, sendo decididos muitas vezes por pormenores. Neste sentido existe uma maior necessidade de inclusão de equipas técnicas multidisciplinares com o objetivo de melhorar o rendimento da equipa e alcançar o sucesso. As equipas de topo devem controlar ao máximo todos os fatores que influenciam o rendimento dos jogadores e, a Observação e Análise de jogo é um deles. Este relatório surge no âmbito do estágio realizado no Sport Lisboa e Benfica, mais concretamente no departamento de Observação e Análise do Benfica LAB, na época desportiva 2014/2015. Encontra-se dividido em três partes fundamentais. A Área 1 (Prática Profissional) foca-se na exposição detalhada das formações específicas que nos foram proporcionadas bem como todas as tarefas operacionais e complementares realizadas ao longo do estágio, subjacentes a um departamento de Observação e Análise. A segunda parte é referente à Área 2 (Inovação e Investigação) – desenvolvimento de um estudo de investigação que carateriza as ações técnico-táticas individuais do Sport Lisboa e Benfica por posição (posto específico) com o objetivo de averiguar diferenças significativas entre épocas desportivas. Concluiu-se a existência de diferenças significativas. As posições que apresentaram o maior número de diferenças entre épocas desportivas foram as posições médio defensivo e primeiro avançado. Finalmente, a última parte deste relatório centra-se na Área 3 (Relação com a Comunidade). São explicados detalhadamente todos os procedimentos da organização e dinamização de um evento vocacionado para a formação de agentes que intervém direta ou indiretamente na Observação e Análise de Jogo.