407 resultados para Infravermelho médio
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The common vampire bat Desmodus rotundus has as main food source blood of medium and large sizes mammals, but sporadically is observed feeding on birds, causing occasionally excessive bleeding and economic losses. Due to this D. rotundus is one of the most studied species of bats in the Americas. Once known that the lunar clarity might influence the nocturnal activities of the common vampire bats, the present study was carried out to know the behavior and schedules of emergencies and returns of bats to the shelter, its social behavior at the shelter´s entrance, especially of the dominant male, and the size and composition of the colony in different moon phases. The colony was composed by 105 individuals (65 females and 40 males) harboring in a hollow-tree of Farm Edgardia in Botucatu Municipality, State of São Paulo. Through the eight filming sessions, two for each moon phase, it was possible to observe that the distribution of emergences and returns to the shelter thought the night followed a specific pattern for each moon phase. The greatest number of emerging bats occurred in periods in which the moon was not born yet and the largest number of returns just before moon has been reached its maximum level in the sky. Therefore, the time period that bats are staying outside the shelter seems to be directly influenced by lunar light. This factor can influence the social activity of the colony and, in particular, the dominant male, who remains still on tree’s trunk, near the entrance of the shelter with greater frequency during periods of low moon light
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Currently the use of pesticides in agriculture is widespread due to their high effectiveness in combating pests, weeds and diseases leading to better productivity and economical performance in agricultural area. The use of pesticides affects the whole world and their use is often performed in an improper and indiscriminate way and for long periods. Several studies have been carried out in order to verify the presence of pesticides in nature, with worrying results. The presence of higher levels of pesticides and their degradation products in soil and surface and groundwater have indicated increasing contamination. Among the most widely used pesticides, herbicides are present and among these trifluralin has occupied an important place due to its widespread use; it is an herbicide originated from benzene derivatives belonging to dinitroanilines family; it is classified as belonging to group C, being possibly carcinogenic for humans, present a high persistence in soil as a result of its low mobility and therefore may affect local edaphic fauna. Diplopods belong to a group of invertebrates considered important in the soil dynamics; due to their close contact with it, these animals can be used as bioindicators of substrates toxicity. This study aimed to expose diplopod specimens of the species R. padbergi to different concentrations of trifluralin and therefore it was mounted five bioassays containing soil from the site where animals were collected (control group) and the same soil mixed to different concentrations of trifluralin herbicide (concentration recommended for agriculture use, that is, the dose recommended by the producer 0.0534g/m2, double, haft and quarter of this dose), animals were exposed for 7 and 90 days. During the entire period of exposure (90 days), it was observed that the number of animals in the control bioassay remained stable until the 5th week, presenting only... (Complete abstract click electronic access below)
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A formação de mosaicos de habitats em regiões de reflorestamento e outras atividades antrópicas acabam influenciando na comunidade de mamíferos silvestres, de diferentes formas. Os mamíferos de médio e grande porte têm importantes funções como dispersores de sementes, polinizadores e predadores. Concomitantemente, este grupo de animais vem se tornando cada vez mais ameaçado na Mata Atlântica, especialmente no estado de São Paulo. O presente estudo realizou a caracterização da comunidade de mamíferos silvestres de médio e grande porte, presente em dois ambientes: fragmentos de vegetação natural e talhões de eucalipto. Para tanto, foram utilizados métodos indiretos de registro: observação de pegadas em transectos lineares e em armadilhas de areia. De acordo com a curva acumulativa de espécies, o esforço amostral se mostrou suficiente para registrar as espécies que vivem no ambiente de mata e eucalipto. A riqueza de espécies na mata foi maior que a riqueza nos eucaliptos, sendo este último, um ambiente preferencialmente de passagem, enquanto a mata é um habitat natural para os mamíferos. Entretanto, o ambiente de eucalipto se mostra importante para diversas espécies de mamíferos, que utilizam este ambiente como abrigo e para busca de recursos
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Os recursos genéticos existentes, atualmente, são de suma importância para garantir a preservação de espécies florestais, uma vez que parte delas vem sofrendo excessiva exploração por se tratar de espécies economicamente importantes ou simplesmente devido à ação antrópica. Tendo em vista este panorama, o presente trabalho foi realizado com o objetivo de fornecer subsídios genéticos para a conservação da espécie ipê-roxo. Analisou-se 31 progênies de Tabebuia heptaphylla da região da Bacia do Médio Tiête. Utilizaram-se três locos, sendo um dos primers desenvolvido para o gênero Tabebuia e os outros para outros gêneros. O parâmetro Fst analisado mostrou haver uma menor diversidade entre progênies (21,47%) que dentro delas (78,53%). O coeficiente médio de endogamia, Fis, para a espécie, apresentou um valor relativamente alto (0,276) quando comparado com a literatura para espécies florestais. A taxa de cruzamento foi de 0,808, revelou que a espécie tem sistema reprodutivo misto, com tendência para a alogamia. As autofecundações foram de 19,2%, a percentagem de irmãos completos foi de 11,23%, de meios-irmãos foi igual a 69,57% e o coeficiente de coancestria ( xy) foi de 0,1776
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This study presents the results of a study on the development of the concept of force and their possible applications in physics teaching. The historical study has focused on Aristotelian natural philosophy, medieval theories of strength in impressed and on classical Newtonian mechanics. The Newtonian concept of force was also an object lesson of physics analyzed in this study. In this lesson, conducted in a preuniversity course, spontaneous conceptions or alternative conceptions of students about the concept of force proved very entrenched, resulting in studies on the Model Change on Conceptual and epistemological obstacles in view Bachelardian. The theoretical frameworks adopted led us to trace parallels between spontaneous conceptions revealed by the students and some views about the concept of force found in the study of history. The results show that while some old conceptions have been replaced by scientifically Newtonian concept of force, they are still present in the students' ideas and resist to changes even after the study of Newton's laws. Like main result shows that the history of science can be a great ally for the deconstruction of alternative conceptions, particularly when these concepts were previously presented and overcome the course of history of the development of a concept
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This work aimed to investigate the possible contributions of the use of digital resources in the teaching and learning process of Commercial and Financial Mathematics concepts to high school students. Its development has included a survey of some researches on the topic as well as an experimental study of a qualitative type, in which the Webquest was used as methodology. It uses the computer, more precisely the internet resources, to assist students in building up knowledge. Eight meetings were held, in the after-school period, with a group of students of the second year of high school at a state public school in the city of Guaratinguetá. Aiming to evaluate the knowledge that students had about the theme, it was applied a diagnosis at first glance for further analysis and development of activities and interventions according to the students’ answers. Once the research data was analyzed, it was noted that the students had little knowledge regarding the basic contents of Commercial and Financial Mathematics, in addition to presenting difficulties in handling some of the digital resources used in the meetings. Nonetheless, from the students’ works, it was seen significant advances in understanding and building up knowledge on concepts such as percentage, simple and compound interest, savings, and sales involving prompt payment or in arrears
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The difficulties related to physics teaching are related to methodology, that hinder learning, because some physical concepts beyond the common sense of most students. Just as poor training of some physics instructors in teaching is pedagogical difficulties. And also factors of infrastructure, heterogeneity in students' previous training etc.. It is proposed aim of this work to use reflection of teaching practice as a methodology. Practiced in a private school, mostly state and, in high school in Rio Claro. The method consists of preparing a daily pedagogical practice in parallel to the development of teaching, for analysis and identification of factors that result in improving the teaching of physics and physics teacher qualification
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In this work, it was studied the effects of the experimentation in the physics teaching. Beginning from the theoretic reference and discussions, the objective was prove the efficiency of researches of this nature related to two main aspects of a class: The aroused interest in the students and the facilitating action on the understanding of the theory. For such objective, using the comparison, it was chosen two distinct classes, but the more similar possible, so that, in one of them, it was showed a tradition class, lectures and in another, a class using experimentation to contemplate the theory. To manage a way to rate these aspects, it was made a conceptual questionnaire, requiring only concepts rather than mathematics and equations, besides specific interviews to rate the opinion of the student related to each method. The observations in classes and of the reactions of the students also were of a big value to analysis. After the experimental class completed, it may analyze and conclude some positive points related to experimental methods: As for the opinion of the students, the approval was big, and the majority opined to this class as being “more interesting”. On the point of view of learning, it had a sensitive improvement of grades, but with more mature answers, deep and autonomous, if looking at a general vision
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This study aims to examine the changes occurring in organizational communication activities with the arrival of the Internet. The intention is to know how companies and their communication professionals have adapted to it and how they are making use of new digital technologies, especially social media. The study also allows know what strategies they are using to reach your target audience on the Internet, including those targeting mobile devices. For this, a survey was conducted with medium to large companies in Bauru (state of São Paulo), to see how it are acting in the online environment and what its perception regarding their image, visibility and positioning on Web
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This study shows new alternatives to the teaching of chemistry in high school and wants to be an aid to the teacher at the time of the planning of lessons and a way to help students improve their performance in this discipline. The central issue is the exploration of differentiated teaching strategies for a just end: improvement of education in chemistry. To reach the main point is to undertake a survey of the most important issues for students and teachers, and from there many teaching strategies are suggested to help in understanding the contents studied. The idea is to propose strategies that may be of interest to students of chemistry, stimulating the curiosity of wanting to know more about a certain content that is being studied in the classroom. This study shows that chemistry is not boring, is not as difficult as it seems, and everyone can indeed take pleasure in studying a world as real and so fascinating, if you understand the facts
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One of the most important strategies for biodiversity conservation is the establishment of protected areas, which protect areas important for the survival of several species. The park “Parque Natural Municipal Cachoeira da Marta”, located in Botucatu, São Paulo, is a unit of strictly protected area and aims to conserve the ecosystems and the biodiversity that exists in the area. The park has a management plan, but this does not include a survey of mammals present in the area, which is relevant as the group has a high degree of threat and a huge ecological importance. Thus, this study aimed to conduct a quick survey of terrestrial mammals of medium and large through the methodology of sand plots, with 25 plots distributed in five areas throughout the park. We recorded 4 orders, 6 families and 9 species (Nasua Nasua, Eira Barbara, Procyon cancrivorous, Leopardus pardalis, Leopardus sp., Dasypus novemcinctus, Tamandua tetradctyla, and Cavia aperea Myrmecophaga tridactyla). Most animals marked are generalist feeding habits, but it was also reported the presence of species more demanding regarding the quality of the habitat
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The medium to large-sized mammals make population control of invertebrates and vertebrates, as well as seed dispersers are also important. Are losing territory and living area because of deforestation and fragmentation of natural areas, mainly in the Atlantic Forest. The RPPN Amadeu Botelho, in the municipality of Jaú, São Paulo State, is one of the last forest remnants of interior paulista. It is isolated from other forest fragments and thus is a wildlife refuge in the region of Jaú, Midwest of the State. Animals as Pumas (Puma concolor), ocelot (Leopardus pardalis), cat-Moorish (Puma yagouaroundi), have already been sighted in the reserve by officials and residents. The buffer property of the farm Santo Antônio dos Ipês, is surrounded by several plantations, and is very close to the Centre of the city of Jaú. In addition to the lifting of the reservation, it sized mammal species diagnosed the influences that the activities of the farm and the proximity to the Centre of the municipality of Jaú exert to fauna studied
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Atropelamentos associados à fragmentação dos habitats naturais, tanto para construção de estradas, quanto para agricultura, são uma das principais causas de mortalidade para várias espécies de animais silvestres pelo mundo todo. Durante o período de agosto de 2011 e junho de 2012, em um trecho da Estrada Vicinal Alcides Rodrigues Soares do município de Botucatu, interior do estado de SP, foi realizado o levantamento de mamíferos terrestres de médio e grande porte através do método de parcelas de areia e transecto, além da procura de carcaça de animais atropelados. Espécies como Onça-parda (Puma concolor) e Tamanduá-bandeira (Myrmecophaga tridactyla), ambas em situação vulnerável de extinção, foram registradas em proximidade da estrada. Através dos dados obtidos, tem se como objetivo demonstrar a importância da valorização da fauna local, com a construção de passagens de fauna, como uma das medidas para a sua conservação e consequente redução dos diversos distúrbios e impactos causados por estradas
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The Gymnastic as a manifestation of the Body Culture Movement should be part of the contents worked in scholar Physical Education, throughout the process of Basic teaching. However, according to studies conducted by researchers from academic Gymnastics school knowledge involving the gymnastics have been tentatively taught in school by numerous factors. For this, the objective of this research was to understand and analyze the opinion of students in middle and high school about gymnastics classes developed with the involvement of graduation scholarship holder and the coordination of the project Gymnastics Goes to School from the UNESP/Campus Rio Claro “Núcleos de Ensino”, in 2012. This research used a questionnaire with topics about the Gymnastic with options: Never Practiced, Like a Lot, Like, Am Indifferent, Dislike, Hate with a space for writing and drawing, relevant to the research objectives. The research was performed with 79 students in middle and high school. With data analysis, it was observed that the students identified themselves more with the Artistic Gymnastic, followed by Rhythmic and Acrobatic Gymnastic and, at last, the General Gymnastic, both through the questionnaire and trough the drawings, which goes against the results from the article published in 2010 by Pereira et al, entitled The students detest the contents gymnastic in physical education classes: motives and alternatives, where the students understand the gymnastics activities only as support, abdominal and stretching. Therefore, to have a real understanding of gymnastics in school, there is a need for teachers to explain and develop the contents gimmicks, so the students could understand the difference among Gymnastics activities and, at the same time, discovering the pleasures of this body practice