Imagens de satélite na análise da relação entre queimadas, aerossóis atmosféricos e precipitação

The direct and indirect effects of atmospheric aerossols in the amazonic climate have been focus of many published. This work aims to analyze a possible relation among Burns, atmospheric aerossols and precipitation above South America. It uses the avaluable data from the satellites AQUA/TERRA and TRMM and the images furnished by NOAA and GOES. These analysis can provide some explanations about the effects of emission of aerosols by burns on the composition of atmosphere and cloud formation, mainly in Amazon. We use the Aerosol Optical Depth (AOD) from MODIS/TERRA-AQUA, burns index from CPTEC and rain rate from TRMM. The data we use were obtained from 2000 until 2012. The study is divided in two parts. In the first one, it was performed a quantitative analysis between number of burns and aerosols emission. It was identified a great variability in space and time of the AOD on South America. On the north, northeast and center-west, the AOD is significant during the winter period, with peak on August and September. The southeast is affected by aerosols from center-west due to the dynamical transport. In the second part, it was evaluated the relation between AOD and precipitation in a 13-year period. The statistical analysis shows up a negative correlation of 0.72 between August and October, on Legal Amazon. These result indicate an inverse relation between AOD and rain rate. The other months present not significant correlation. These results are in a good agreement with the literature, in which in-situ methods were applied or combined with satellites data. The increasing of aerosols concentration in the atmosphere are reinforced during drier years. It can affect the increasing process of water drops, decreasing the precipitation. We also verified higher values of AOD (0.25 - 0.3) during years with El Niño, than the climatologically average (~0.15 - 0.2), ... (Complete abstract click electronic access below)

A Inserção da astronomia na grade curricular do ensino médio do Estado de São Paulo

We performed in this study an analysis of Curriculum Astronomy contents the public schools of São Paulo from the available educational materials to teachers and students by the state board of education. We analyzed the conditions that teachers carry out the activities suggested to the teaching-learning situations, considering factors such as time available for classes, available material and the general technical condition to perform the activities suggested by the material. Thereafter, we conducted a search with teachers from public of São Paulo, than three cities in the Vale do Paraíba, in order to trace a general framework of the perception of these teachers about the introduction of Astronomy in Physical during the implementation of the new curriculum

Pluralismo metodológico e aprendizagem dos alunos no ensino fundamental

Over the years is a significant number of researchers consider constructivism as a methodology above the rest and that can be applied to any educational context, and is therefore the ideal methodology in the present moment. However, as opposed to this idea, there is a growing body of research that consider the methodological pluralism how best to teach in class, precisely because it is not just one, but several methodological practices which vary according to the educational needs of students. This exhibit features four lessons presented to students of 6th and 8th grade of elementary school II, two lessons using experimental activities, a lesson using Demo activity and a lesson using texts textbooks. In all four lessons there was a collection of data on students' understanding about the physical concepts covered by each of the above four lessons either through questionnaires, video recording, and more. Based on Vygotsky's theory of social interaction and constructs Wertsch (1984), this article raises important discussions about the advantages and disadvantages of these three methodologies within the pluralistic proposal

Análise da técnica dos estilos Crawl e Costas em praticantes de natação

The aim of this study was to analyze and evaluate the performance of swimmers tied to the Extension Project Natação na UNESP at distances of 25m, 50m, 75m and 100m. The study included 20 people, including 12 men and 8 women. From an aerial footage was possible to record the tests proposed by the analysis of videos of, Freestyleand Backstroke styles for stroke cycles, average speed, stroke frequency and time proof stretches of 0-25m, 25-50m, 50-75m e 75-100m. Thus, it was possible to calculate stroke length, frequency, average speed as proposed in the study of Maglischo (1999). From these data were applied to descriptive statistics with mean and standard deviation, minimum and maximum scores in the different parameters of analysis and statistical tests, t-test and correlation to make comparisons between styles and between the distances swims by the subjects. Regarding the performance of the participants in the eight proposed tests, it can be said that most have already mastered the styles Crawl and Back Crawl for having managed to finish the tests proposed. However, the results of the variables analyzed mainly by the total time obtained in the tests can classify the subjects in the initial phase of learning and to start the training will be necessary to improve the implementation of styles

As atividades circenses e a formação continuada de professores: análise de um processo

Circus activities have formed over the years as an important content to be exploited by the teachers in the school environment, and current projections, the inclusion of circus activities in physical education classes has been presented and defended by several authors. That being so, the objective was to offer a continuing education program thematising circus activities having as research focused on the analysis of this training process, as well as their implications, contributions, opportunities and challenges for teacher pedagogical practice. The research, qualitative, was developed in two phases: a questionnaire for physical education teachers working in public schools in order to highlight the reasons for the absence of most of the teachers in the training program. The second phase included the development of the continuing education program content circus activities in the continuing education of physical education teachers, the two teachers in the school environment, as well as analysis and reflection of teacher participation in the training program, described in daily class and daily meetings ending this step with a final interview. Participated in the study, 13 physical education teachers of the municipal school system of a city of São Paulo, of which only two teachers participated in the development of the training program in schools. The teachers manifestations through the questionnaire and participation in the training program showed that teachers make themselves available to participate in continuing education programs, however, the priorities of each teacher (such as family, leisure or other chores) can demarcate difficulties in establishing common to all teachers moments, preventing the effective participation of teachers within the continuing education programs. On the other hand, the school is set up as a rich space of experiences and exchanges of experience, contributing to the development of continuing education programs

Corpo: forma, movimento e equilíbrio : um olhar interdisciplinar sobre o corpo, a mente e o comportamento humano

For centuries have studied the man in a segmented manner, which today, even with the emergence of new forms of research, holistic, we see that the influence of centuries of construction of scientific knowledge has taken root in such a way that even now with new understandings about matter and its structure pointing to systemic relations, studies are still largely dichotomized by dividing body, mind and environment. This paper is a literature review on several sources of knowledge, seeking an interdisciplinary way in physics, chemistry, biology, psychology and physical education, relate the body, mind and their interactions with the environment, building a more current concept of body. The studies showed that the physical, cognitive, emotional, social and environmental aspects involve an interaction continues between human been with the world, which changes shapes, balances and transactions, and thus human behavior. So when we speak of the body should relate all this that makes us conscious organisms in constant internal and external dynamic with the universe

Danças urbanas no Brasil: relatos de uma história

This research is a short article about urban dances in Brazil, about how did it came and became popular here, and also it will discuss about the different nomenclatures that exists nowadays: street dance, dances from street or urban dances. As a bibliographic reference, a research was made about the history of those dances in an international context, the creators and all the elements that consists the Hip hop culture: Break dance, grafitte, MC and DJ. The research methodology is characterized as a qualitative, it search for information that can be deeply studded, and the method used was history telling, which prize and brings up the man memory of the facts. The interview was also used as a tool in a previously elaborated script with open questions, so the interviewees could answer their own way and talk as much as they need about the issue. The analyze was made using the Bardin (2009) method. The interviewees are very important at the Hip Hop scenario because their lives were dedicated to the research about urban dances and the Hip Hop culture. During the interview they told how they started to dance and that their first contact with urban dances was made by watching movies that came to Brazil in the eighties. Michael Jackson has also contributed to spread this urban dances at that time with his videos. The main goal of this research is to tell the history of the urban dances, how did they got here, who brought it and how it has spread in Brazil. It justify itself during the fact that exists just a few researches in a scientific way that study this issue, thus the history importance that this contents is to the urban dances in Brazil. My conclusion of this article is that the history has many different ways, a lot of names, and that the urban dances in Brazil has began in many different places at the same time, by films influence that has promoted the styles that had came here in the eighties

Perfil de uso de recursos ergogênicos em academias da cidade de Bauru/SP

The increasing number of gyms and their patrons increasingly concerned about the health, appearance and aesthetics propagated by the media and the supply of ergogenic both food as hormonal some without proof of its effects generated interest for the study of consumption of such ergogenic goers by academies of Bauru/SP; objective was also to assess whether the Physical Education professionals are prepared to guide properly, such as the use of these goers ergogenic. To this end, a questionnaire specific to each category was used, to be answered voluntarily and anonymously, with closed and open questions divided into two parts: one for socio demographic characterization and another in which were discussed issues regarding the use/orientation ergogenic. The research involved a sample of 12 academies and 205 attendees, including 152 men (74.15%) and 53 (25.85) women. Among men, 61.18% (n=93) did use ergogenic(s) food(s), while among women, this percentage was 33.96% (n=18). Regarding the use of hormonal resources, only 4.61% (n=7) of men said they used; there were no cases of women using hormonal resources. Were also interviewed 19 assessors/trainers/teachers, two which fifteen (15) men and four (4) women. Most consumers of ergogenic: (1) is understood in the age group 21-30 years and the socioeconomic classification bands called B1 and B2; (2) practice bodybuilding and consumption ergogenic resources with purpose of muscular hypertrophy; (3) practicing bodybuilding for a period between 1 and 5 years, consumes ergogenic(s) for a period less than one year, and perhaps the most significant event, starts the consumption of ergogenic(s) in a period of less than one year after starting the practice of bodybuilding, and that there are consumers who start consuming ergogenic as soon begin the practice of bodybuilding; (4) has as its main source of indication for the use of ergogenic, the gym instructor, among which, some respondents reported...

Relações entre força muscular e composição corporal e regional em idosos

Exercise, in general have the ability to promote health, reduce loss of physical fitness, reduce declines in body composition and prevent disease, and promote improvements in athletic performance, and that's consensual today. Through analysis of body composition and physical fitness, you can diagnose the possible individuals at risk of developing diseases, and fractures caused by falls in the elderly. The DXA tests were used (densitometry by dual beam X-ray) to assess body composition and regional, 1 RM test to evaluate the maximum strength and girth measurements, diameters and skin folds in order to analyze the balance of power muscle with both body composition as regional. The results showed that the variance in bone mass between older content related to the change in the maximum muscular strength of the upper and lower limbs, but the force values are not related to increased muscle mass. The development of muscle strength fulfills a dual function in aging which is to maintain or reduce the rate of loss of lean body mass, and also so the body bone health

Movimento jogo e brincadeira na educação infantil: as expectativas das famílias

Childhood is a theme that has attracted many controversies and discussions, and winning approaches to the increasingly large over time: biological, psychological, educational, welfare and, more recently, sociological. It is known that the movement, play and game activities are important recurrent and integral development of children, and should be present prominently in early childhood institutions. Based on these assumptions is that this study aimed to analyze the didactic-pedagogical principles postulated by the law, official guidelines didactic teaching and literature, with regard to meeting the needs of children in early childhood education. Unveiling the expectations of the families responsible for children in relation to early childhood education, especially with regard to movement, and play games and compare to what extent these expectations turn away or close to the guidelines on teaching and pedagogical movement, games and postulated in official documents, legislation and literature. To this end, we carried out literature search, selection and analysis of texts relevant to the understanding of the theme. Fieldwork was conducted in a Municipal School of Early Childhood Education Full-time (Emei) of Bauru/SP, and involved the analysis of the Political-Pedagogical Project of the institution, semi-structured interviews with five teachers and five children in the family responsible for Garden II (ages 5 to 6 years). Data were analyzed using thematic content analysis of Bardin and triangulated by the confrontation of literature/legislation, the Pedagogical Political Project of the institution and the expectations of families/guardians. We also realize that the Pedagogical Political Project of EMEI is in routine activities with the children, movement, and play the game are covered and are worked. According to teachers interviewed they assist in learning other areas of work (Oral and Written Language, Nature and Society, etc.) learning of moral...

Efeitos preventivos do treinamento físico na expressão das proteínas Cox-2 e Vegf de ratos tratados com dexametasona

Dexamethasone is a synthetic glucocorticoid widely used to treat allergic and inflammatory processes. This drug is used in three main situations, are used to contain acute or chronic inflammatory processes, or like immunosuppressive drug's. In these cases the patient will receive high doses for a chronic period and, therefore, has a much greater chance of adverse side effects, such as hypertension, diabetes and dyslipidemia. Dexamethasone promotes deleterious effects on the arachidonic acid pathway, when administered in high doses, because it is a potent anti-inflammatory drug. We recently demonstrated that dexamethasone significantly reduces the protein expression of vascular endothelial growth factor (VEGF) in both skeletal muscle and heart, but the mechanisms involved remain unclear. Meanwhile, exercise has been shown to be effective against high blood pressure, diabetes and dyslipidemia, promoting, among other factors, the increase in VEGF and angiogenesis. One possible explanation for these effects would be the creation of new vessels mediated by inflammation, or by the stimulation of the formation of products of the metabolism of arachidonic acid (AA), such as prostaglandin E2 (PGE2) and VEGF, by increasing the stimulation of the enzymes cyclooxygenase 1 and 2 (COX-1 and COX-2). Little is known about the preventive effects of training on the action of dexamethasone in the arachidonic acid pathway. Therefore, the aim of this study was to determine whether aerobic exercise training, performed before and concomitant treatment with dexamethasone, was able to prevent the effects of the dexamethasone in the protein expression of COX-2 and VEGF. For this, we used young Wistar rats (n = 40) which were randomly divided into 4 groups: sedentary control (SC), sedentary and treated with dexamethasone (SD), trained control (TC) and trained and treated with dexamethasone (TD). These rats performed aerobic exercise training, 60% of maximum capacity, 5

Presença de fatores de risco dependentes ou não de esforço físico em praticantes de corrida de rua

In order to reduce the sedentarism and to improve population's health condition, many physical activity incentive programs have been stimulated. As a result, many people have adhered to street racing, but their health condition is almost always ignored. The aim of this study was to evaluate street racers' health condition, identifying the presence of cardiovascular risk factors as well as problems associated to street racing. The study case was composed by 111 racers from the town of Bauru (94 men and 17 women) aged in average 39±13 years old, who were evaluated in 4 street race competitions. The subjects answered to an anamnesis with questions about their socioeconomic status, medicine use, cardiovascular risk, physical exercise practices, and issues related to racing and injury. Weight (kg) and height (m) were measured to calculate the body mass index (BMI, kg/m²) as well as systolic and diastolic blood pressure (BP), heart rate (HR), abdominal circumference (AC), and flexibility. It could be observed that the majority of racers were Caucasian, married and belonged to social classes over C. The prevalent age was between 18 and 35 years old (42%). Among the participants, 38.7% have already undergone some kind of surgery and 13% declared having some health problem. The questionnaire pointed out that 36% had low and moderate cardiovascular risk. It could be noticed from the AC that 10% of men and 18% of women had high cardiac risk. Among the tested, 43.2% (24.3% altered and 18.9% borderline) showed high BP on the day of the test, but only 2.7% had self-declared hypertensive. In relation to injury, 36% had already had lesions of some kind, 27.5% of which had occurred in the last 8 months. 66.6% had derived from training or racing competitions and the knee was the mostly affected body part. Only 43% had professional orientation by a physical education teacher during their training and the main reasons for them to begin racing practice were...

Efeitos preventivos do exercício físico sobre as proteínas ciclooxigenase-2 (COX-2) e fator de crescimento de vasos derivado do endotélio (VEGF) no músculo cardíaco em ratos tratados com dexametasona

Dexamethasone (DEXA) is a synthetic glucocorticoid widely used in the handling of several drugs, for its proven benefits in fighting inflammation and allergies. Despite their benefits, their chronic use leads to several side effects that include changes in the body in the metabolism of carbohydrates, lipids and proteins. Moreover, being an anti-inflammatory, acts on the arachidonic acid pathway, reducing the expression of the enzyme cyclooxygenase (COX-2) and growth factor derived from the endothelium of blood vessels (VEGF) in various tissues. However, its effects on the myocardium are still uncertain. The physical training (PT), in turn, promotes effects contrary to those caused by chronic use of DEXA, however, little is known about the preventive effects of TF in the side effects of Dexa in the myocardium. Therefore, the aim of this study was to determine if the TF has the ability to prevent and/or mitigate the effects of Dexa in protein expression of COX-2 and VEGF in the myocardium. Forty animals were divided into 4 groups: sedentary control (SC), sedentary treated with Dexa (SD), trained control (TC) and Trained treated with Dexa (TD) and submitted to a protocol of physical training on the treadmill for 70 days (1 h/day-5 days per week, 60% of physical capacity) or kept sedentary. Over the past 10 days, rats were treated with Dexa (Decadron, 0.5 mg/kg per day, ip) or saline. During training the animals were weighed weekly and during treatment daily. At the end of treatment was made to measure fasting glucose levels of animals. The rats were killed with excess anesthesia and cardiac muscle was removed, weighed, homogenized, centrifuged and stored at -20° C for analysis of protein expression of VEGF and COX-2 by Western blotting technique. Treatment with dexamethasone caused a weight loss of 18% in sedentary animals and 13% in trained as well as elevated levels of fasting glucose in sedentary (88%). The TF was unable to mitigate the loss in...

Efeitos preventivos do exercício físico na expressão da miostatina em ratos tratados com Dexametasona

Muscle atrophy is always associated with Dexamethasone (Dexa) treatment, however the mechanisms are not completely understood. This study investigated the effects of Dexa on myostatin and p70S6K protein expression and if previous exercise training (T) can attenuate these effects. Eighty rats were distributed into 4 groups: sedentary control (SC), sedentary treated with Dexa (SD; 0,5 mg/kg per day, i.p., 10 days), trained control (TC) and trained treated with Dexa (TD) and underwent a training period where they were either submitted to a running protocol (60% of physical capacity, 5 days/week for 8 weeks) or kept sedentary. After T period, animals underwent Dexa treatment concomitant with training. Western Blot was performed to identify myostatin and p70S6k protein expression in the tibialis anterior (TA) and soleus (SOL) muscle. Ten days of Dexa treatment increased fasting glucose (SD=+62%), however previous T attenuated this increase (TD=+20%, p<0.05). Dexa determined significant decrease in body weight in TD (-22%) and SD (-25%), followed by TA weight reduction in SD (-23%) and TD (-20%). Previous training could not avoid these decreases. Myostatin protein expression was not altered by dexa treatment or training in TA muscle but in SOL muscle it was significantly modified after T, regardless of treatment (TC=+%23 and TD=+25) compared with their respective controls. The protein p70S6K was not modified neither by dexa nor training in any of the analyzed muscle or condition. The results of this study allowed us to conclude that previous training attenuates the hyperglycemia induced by Dexa, however it did not prevent the body or muscle weight reductions. Even in the presence of muscle atrophy, the expression of myostatin and p70S6K do not justify the mechanisms of muscle loss induced by Dexa, which suggests that other catabolic or anabolic proteins could be involved in the process of muscle atrophy after 10 days of treatment with Dexa

Jogo de handebol e futsal na escola: possibilidades e limites pedagógicos

Sports team, specifically soccer and handball, has traditionally composing the physical education school contents as a curriculum component. There are several criticisms to extend this approach beyond the sportive discourse. While we recognize this need for expansion, we believe that the methodological endeavors to teach these sports content are still very poor, requiring, therefore, studies that guide us in changing not only contents but also the way of teaching it, which implies new e teaching, pupils and teaching relationship perspective. In this sense, the objective of this study was to identify and analyze, from a sports team tactics teaching approaches of invasion, the demonstrations by students, the phases of handball and soccer games, as well as the elements/dynamic structural, functional and operational in the same school environment. Given this objective, qualitative research, specifically, collaborative action research, best meets investigation is this scenario, since classroom teacher and students also participated in the content construction and strategies undertaken during the intervention. The study enrolled 28 students in the fifth grade, aging 10 to 11 years, in a Bauru/SP public school, physical education teacher and the researcher. Were planned and taught together, 14 classes over a semester with the handball and futsal content, guided for teaching tactics approaches. The data collections were made through systematic lessons observation (through filming and recording diary), interviews with students and descriptive reports made by the classroom teacher and researcher. The results indicate that there was an improvement in the phases of soccer and handball game, even though only the latter has changed its category phase to decentralized anarchic phase. Several students showed in the situational interviews, a more elaborate game understanding than the one identified in the game demonstration. In the analysis of relationship levels..