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Influência de práticas de manejo de solo sobre os macroinvertebrados aquáticos de córregos: ênfase para o cultivo de cana-de-açucar em áreas adjacentes
(Universidade Federal de São Carlos, 2006-03-09)
Corbi, Juliano José
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Strixino, Susana Trivinho
;
https://lattes.cnpq.br/1804083229761186
Brazilian colonization occurred without a specific planning and, as a consequence, natural resources, particularly forests, were greatly affected specially by economic interests. In the Brazilian history, the native land cover vegetation was removed, and substituted by agriculture, mainly of sugar cane and also pastures. In the State of São Paulo, the sugar cane culture has also being enlarged, with the annual production of the about 200x106 tons covering an area of 2.5x106 ha. The use of herbicides and fertilizers containing different concentrations of the metals Pb, Ni, Cr, Cd and Zn, during different periods of cultivation of sugar cane, in addition to the deforestation of riparian vegetation, have caused impacts on the hydric resources of the adjacent areas. In the present work, the influence of the agricultural activity, in particular, sugar cane culture, on stream macroinvertebrate communities was studied. Macroinvertebrates, sediments and water were surveyed in three periods: March/April, 2002; June/July/August, 2002; October/November, 2002. Thirty three samples were collected: 15 in streams with sugar cane culture, 12 in streams with riparian vegetation and 6 in pasture areas. The concentration of the dissolved oxygen was low in streams without riparian vegetation (sugar cane and pasture) when compared to preserved areas. The concentration of the metals Cu, Fe, Cd, Zn, Mn, Cr e Ni of the sediment were high in streams with sugar cane cultivation, with significant differences to Cu and Zn, when compared to forested streams. The streams located in the adjacent areas with sugar cane cultivation also present high concentration and frequency of occurrence of the 15 organochlorine compounds analyzed. In this study, 3365 organisms were collected, in which 54 Chironomidae taxa and 42 of other aquatic macroinvertebrates. The streams located in areas of sugar cane culture and pasture (opened areas) presented low taxa and a great participation of Chironomidae (78% of the total). In contrast, the streams located in areas with riparian vegetation presented a rich aquatic fauna with less participation of Chironomidae (60% of the total). The community index, in addition to other measurements, applied to the stream macroinvertebrates community of the 11 streams pointed out to major values of richness, diversity and biotic index to the streams located on forested areas, when compared to the streams located on areas with sugar cane cultivation and pasture. Overall our results indicated that deforestation of the riparian vegetation was the principal aspect that influenced the stream macroinvertebrate communities. The loss of the riparian vegetation in the streams located adjacent of the agriculture areas establish an environmental impact that results in a poor taxa richness and shows clearly the necessity of a suitable management of the hydric resources of the southeast region of Brazil.
Estudo da fluidodinâmica em leito fixo utilizando-se métodos numéricos de solução: escoamento monofásico de ar
(Universidade Federal de São Carlos, 2006-03-09)
Béttega, Rodrigo
;
Corrêa, Ronaldo Guimarães
Studies accomplished in the structure of tubular fixed beds proved that the porosity in these systems presents an oscillatory behavior along the radial direction. The non-uniformity of the porosity generates a behavior of the velocity profile, inside the bed, characterized by oscillations in the central region and a peak of larger width in the region close to the wall. This velocity profile determines the residence time of the reactants, for example, and presents a strong influence in the heat and mass transfer coefficients of these systems. In spite of the progress obtained in that subject, it is still difficult to obtain the measure of flow velocity inside the bed without causing disturbances in its structure. Due to this restriction, indirect forms of experimental measure of the velocity distribution in these systems have been proposed to evaluate the fluid dynamics inside the bed. The most common way to obtain, experimentally, the velocity distribution inside the bed is to measure it outside the bed, at a certain distance from its exit, and then infer it inside the bed by considering that the flow measured at this point maintains the fluid dynamics characteristics at the interface. Looking for an alternative way to infer the velocity profile inside the fixed bed, this work proposes a measure of the change in flow characteristics from the exit of the fixed bed to the point of experimental measurement. The measure proposed before takes into account the change in the radial mean velocity evaluated over an area close to the central part of the flow. This measure is based on simulated results accomplished between these two points, located outside the fixed bed, from an appropriated boundary condition at the interface. This boundary condition at interface is the result of other simulations performed inside the fixed bed, from a convenient model proposed for this region. Both simulations were accomplished by using a simulator developed in FORTRAN language, based on a CFD numeric technique for outside and a standard finite difference method for inside the fixed bed. The validity of the proposed procedure was verified by comparing the velocity distribution simulated at a position pointed out in an experimental measurement of the velocity distribution obtained in the literature, and with similar operational conditions. By doing this validation, it was established a relationship between the change in flow characteristics and the axial position of measurement. As a result, it was possible to infer how much of the flow characteristics in the interface are observed from the position chose for measurement along the axial direction of the flow. Better results were observed in systems with a high dimensionless D/Dp relation and low values of Reynolds number for the flow simulations accomplished in the exit area of the bed. Deviations from experimental data, varying between 2,97% and 30,23%, were verified for different operational conditions of the system. Through the central velocity simulation along in the empty tube axial position, were possible to map the empty tube influences on the flow in the fixed bed exit area, evaluating the difference of that central medium velocity with the calculated for the bed exit.
Existência global de soluções para uma classe de leis de conservação e algumas considerações sobre um sistema de leis de conservação
(Universidade Federal de São Carlos, 2006-03-09)
Ferreira, Ricardo Edem
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Kondo, Cezar Issao
;
https://lattes.cnpq.br/0900348462714778
;
https://lattes.cnpq.br/1696477429814262
In this work, we will construct global solutions for a conservation law, due to C. M. Dafermos. Also we will discuss some properties for a class of systems of conservation laws, due to B. Rubino.
Impacto das propriedades físicas dos objetos nos movimentos de alcance em lactentes saudáveis de 4 a 6 meses de idade
(Universidade Federal de São Carlos, 2006-03-10)
Rocha, Nelci Adriana Cicuto Ferreira
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Tudella, Eloisa
;
https://lattes.cnpq.br/3207258034860219
Many studies have shown that object properties can lead to adjustments in reaching, but few have investigated the specific influence of object size and rigidity on reaching movements in young infants, especially by using kinematic analysis. Objective: Investigate the effect of object size and rigidity in the qualitative and quantitative variables of reaching in 4-to-6- month-old infants, and verify how such variables change over age. Methods: Nine healthy infants were placed in a baby chair reclined at 50º from the horizontal The infants were shown four objects of different size and rigidity large rigid (RG), small rigid (RP), large soft (MG), and small soft (MP) for a period of 1 minute each. Reaching movements were recorded by three digital cameras and the images were analyzed by using the 3D movement reconstruction. A total of 378 reaches were analyzed in relation to the following variables: qualitative proximal and distal adjustments, hand preference, and grasping of objects ; and quantitative straightness index, mean velocity, movement units, and adjustment time index. Results: There were many different changes in reaching over age. The answers to stimulation and the grasping of objects increased. Proximal adjustments were shown to be variable. Hand preference changed from the left to the right. The hand was predominantly half-opened in both the beginning and the end of the reaches; however, hand opening angle increased in the end of the reaches from the fifth to the sixth month. In all the ages, hand orientation was predominantly oblique when touching the object, and vertical when grasping it. As regards the quantitative variables, the straightness index and the mean velocity increased, and the movement units decreased. No significant changes were observed in the adjustment time index. Infants performed bimanual movements for the large rigid object, and unimanual movements for the small ones. The adjustments were similar in relation to the large soft object. Right-hand preference was higher for the small objects. In the beginning of the reaches, the hand was predominantly half-opened for all the objects; while in the end of the reaches, the hand was predominantly opened for the object large rigid. Hand orientation was predominantly oblique when touching the object, and vertical when grasping it, especially for the object large rigid. The soft objects were more frequently grasped than the rigid ones. The straightness index was higher for the large soft object, while the adjustment time index and the number of movement units were lower for this same object. The number of movement units increased for the small objects. No significant changes were verified in the mean velocity. Conclusion: It is possible to suggest that reaching movements are improved over age, thus indicating an increase in the infants performance during the studied period of life. Once the infants perceive the object properties, they adjust the essential variables of their movements by using their available motor abilities, thus suggesting the existence of a complex perceptionaction coupling.
Reciclagem química de PET proveniente de filtros industriais pós-consumo
(Universidade Federal de São Carlos, 2006-03-10)
Schwantes, Denise
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Zanin, Maria
;
https://lattes.cnpq.br/9685965969782429
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https://lattes.cnpq.br/5557023803320494
The PET filter bag is used in the separation of the particulates materials of the gas produced in the aluminum industry. It had been submitted a chemical recycling. Almost industries make the disposal of these materials in industrial earthwork or still they take the centers that make the energy recycling. The filter bag restrained particulate is constituted by alumina with adsorbide fluoride and an amount of carbon proceeding from the electrolytic decomposition of anode pots. The adhesion of particles in the interior becomes the filters of difficult recycling mechanics, because the incrusted materials are not removed by the laundering. So, the filters of this work had been recycled chemically through glycolysis with ethylenoglycol. For the reactions under ambient pressure it was observed that it has the necessity to use catalyst to speed up the reaction. The catalyst used was the sodium bicarbonate. The best condition found for reactions the ambient pressure form: temperature of 190°C, 1% of catalyst and 20 hours of reaction. With these conditions the glicolysis convrtion was almost 94%. It was not possible to determine the order of ration for this system. The reactions carried through with a closed reactor had allowed increasing the temperature of the system. So, the temperature is the variable most important, reaching bigger conversions in a lesser time that the gotten time the ambient pressure. The best joined conditions had been 1% of catalyst, 190°C and 10 hours of reaction and also 0.5% of catalyst, 230°C and 5 hours of reaction. For these conditions, the reaction rate was little bigger than 99%.
Proposta de um método para a definição de rotas cicláveis em áreas urbanas
(Universidade Federal de São Carlos, 2006-03-10)
Kirner, Janice
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Sanches, Suely da Penha
;
https://lattes.cnpq.br/3857424839674606
Urban problems caused by transportation planning that prioritizes the use of the automobile indicate the inclusion of the bicycle as a viable alternative of urban transport in Brazilian cities. However, it is verified the lack of guidelines that can lead to policies that encourage bicycle transportation, amongst which stands out the insertion or improvement in the infrastructure for cycling. The objective of this study is to propose a method for the definition of cycling routes in urban areas which would have satisfactory results in encouraging bicycle transportation, focusing on the aspects of demand and bicycle level of service in shared roads in urban areas. The proposed method includes the following steps: (1) identification of the potential facility for bicycle trip generation; (2) data collection on the trip behavior of the facility users; (3) identification of the road segments with greater potential demand for bicycle trips; (4) level of service evaluation of the selected road segments; and (5) selection of road segments with greater need of improvement to define cycling routes. A study case was carried out in the city of São Carlos, where the proposed methodology was applied in two utilitarian bicycle trip generation facilities. The necessary data for the study was obtained through 106 interviews, which included a questionnaire and a stated preference survey. The data obtained in the stated preference survey revealed that the pavement condition was the most important attribute in the group s opinion, in comparison to motorized vehicles speed and travel time. The identification and the study of the road segments with greater potential demand for bicycle trips included the demarcation of the influence area of the trip generation facility, the definition of the desire lines and the inventory of the itineraries covered by the interviewed group. These steps were developed with the use of TransCAD. The evaluation of the level of service of the selected segments resulted in measures of level of service with the same value for all of the roads, which did not allow us to prioritize the segments with greater need of improvement to define cycling routes. However, since the values attributed to the road segments were considered unacceptable for bicycle transportation, a series of improvements were suggested to reduce their deficiencies.
Envolvimento dos receptores AT1 e do óxido nítrico na ingestão de NaCl 0,5 M e nas respostas dipsogênicas, renais e pressoras produzidas pela angiotensina II injetada na área septal lateral
(Universidade Federal de São Carlos, 2006-03-10)
Garcia, Gustavo
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Saad, Wilson Abrão
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https://lattes.cnpq.br/9958857110669105
In this study, we investigated the participation of the AT1 receptors and of the nitric oxide (NO) into lateral septal area (LSA), on the water intake, 0,5 M NaCl intake, natriuresis, diuresis and pressor response induced by injection of angiotensin II (ANG II) in the same area. Male Holtzman rats were used weighing between 280 and 320 g, with cannulae of stainless steel implanted stereotactically into the LSA. The ANG II (25 ng/0,5 µl) injected into LSA, induced water and sodium intake and increased the urinary volume, sodium urinary excretion and arterial pressure when compared with the control group, that received 0,15 M NaCl. The pretreatment with losartan (antagonist of the AT1 angiotensin receptors) into LSA abolished the water intake, the sodium intake and the pressor effect induced by ANG II. The losartan also reduced the increase of urinary volume and of the sodium excretion induced by ANG II. The previous treatment with 7-nitroindazole (inhibit of the nitric oxide synthase enzyme) abolished the water intake and the increase of urinary volume, decreased the sodium intake and the natriuretic effect and no changed the pressor effect induced by ANG II. The results show the involvement of the AT1 angiotensinergic receptors and of the nitric oxide into LSA in the control of the cardiovascular and hydroelectrolytic balance, beyond a possible interaction between nitrergic and angiotensinergic mechanisms of the LSA in this control.
Alinhamento entre a estratégia de operações e a gestão estratégica da logística: estudos de caso no setor automotivo brasileiro
(Universidade Federal de São Carlos, 2006-03-10)
Maia, Jonas Lucio
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Alves Filho, Alceu Gomes
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https://lattes.cnpq.br/7885557554922569
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https://lattes.cnpq.br/0078457646573985
The worldwide (and thus Brazilian) automotive industry has undergone a process of important changes. Specifically in Brazil, the set up of new automakers, the consolidation and denationalization of the autoparts, and phenomena like the lowdisplacement engines have brought major strategic implications to those companies, as well as to the supply chains to which they belong. Considering such implications, it is plausible to accept that several organizational elements were strongly impacted, including Operations Strategy and the Strategic Logistics Management focuses of this research. In this sense, the work here presented aims at shedding light on the alignment between Operations Strategy (OS) and Strategic Logistics Management (SLM), by means of case studies carried out at four companies from the Brazilian automotive engine sector (two car engine manufacturers and two of their suppliers). The main findings indicate that operations and logistics are effectively aligned in the cases studied, but such alignment is influenced by aspects regarding the supply chains to which these companies belong, as well as by aspects internal to such companies. As a consequence of the differences occurring in the chains, although the companies adopt similar competitive priorities, they are implemented by different decisions. Regarding operations, the chains seem to influence the decisions and viceversa, whereas regarding logistics the chains create a framework in which logistics may play its role in the company strategy. Organizational structure and the role that operations play in competitive strategy were the internal aspects here analyzed. The first seems to make the alignment easier, once that in most cases both operations and logistics were managed by the same director. The role played by operations also suggested alignment, once that operations decisions either aimed at implementing the strategy, or originated such strategy from its competencies.
Violência intrafamiliar e envolvimento em "bullying"no ensino fundamental
(Universidade Federal de São Carlos, 2006-03-10)
Pinheiro, Fernanda Martins França
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Williams, Lúcia Cavalcanti de Albuquerque
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https://lattes.cnpq.br/6962646759651464
Many studies have shown that children exposed to domestic violence are at risk of presenting behavior problems and other adjustment problems at school. Nevertheless, few studies have assessed the relationship between different types of family violence and bullying. The primary purpose of the present investigation was to: a) examine the relationship between bullying and different types of direct and indirect family violence in Brazil; b) check the chronicity of family violence among student subgroups implied in bullying; c) establish if there are gender differences concerning these associations. The research was conducted with 239 grades 5-8 students, of which 34.7% were boys and 65.3% girls. A questionnaire was constructed based on other instruments, containing: 12 questions involving socio-demographic variables; 16 items of the Revised Conflict Tactic Scale (CTS-2), with the goal of examining the youngster s exposure to interparental physical and psychological violence; and 32 items of the Parent-Child Conflict Tactics Scales (CTSPC), concerning physical and psychological abuse committed by parents against children. Bullying and victimization were measured by 26 items developed specially for the study s purpose, based on a modified version of Olweus questionnaire. It was found that, in the previous three months before the study, 49% of all students were implied in bullying: 2,9% as bullies, 25,5% as victims and 20,5% as bully/victims. It was found that boys were more implied as bully/victims than girls. More than 50% of the participants had witnessed at least one episode of interparental psychological aggression, and 12% of all students reported seeing physical violence between parents, with fathers and mothers showing an equal ratio of violence. In regards to child abuse, psychological violence was the most frequent modality, with 85% of participants reporting that they had been victimized that way by mothers and 62%, by fathers. The rates of physical assault were also alarming: about 70% of all students reported that they had suffered corporal punishment by parents, which is worrisome. Associations were found between bullying and domestic violence, but these associations were different according to gender. Being exposed to domestic violence was associated with being a bully/victim in school (especially for girls), but not with being a victim of bullying. On the other hand, parental violence increased the probability of boys reporting being implied in bullying as victims or as bully/victims. In terms of the girls, suffering parental violence was only associated as being a bully/victim. In this study, being an aggressive-victim meant having more chance of suffering domestic violence, and such violence was more severe than the one reported by students not implied in bullying or victims of bullying only. Due to the small amount of participants classified as bullies, it was not possible to do statistical tests, which was a limitation of the study.
Respostas fisiológicas e bioquímicas do jeju Hoplerythrinus unitaeniatus (Characiformes, Erythrinidae) a exposição aérea
(Universidade Federal de São Carlos, 2006-03-10)
Mariano, Wagner dos Santos
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Fernandes, Marisa Narciso
;
https://lattes.cnpq.br/3021357484136942
The physiological and biochemical responses to air exposure were analyzed in jeju, Hoplerythrinus unitaeniatus at 1(T1), 6 (T6) and 12 (T12) hours of exposure and 1 (TR1) e 6 (TR6) hours after returning to water environment. Plasma cortisol and glucose were significantly higher than those of control group (T0) after 1 and 6 hours and 1, 6 and 12 hours of air exposure, respectively. Acid-base and ionic unbalances during air exposure were evidenced by plasma pH and Na+ and K+ concentration following pH recovery as fish returned to water environment. Ammonia accumulation was found in all experimental groups increasing continuously during air exposure (from 102.20 nmol/mL in T0 to 339.53 nmol/mL in T12). During the recovery period in water there was a reduction in plasma ammonia concentration but it was significantly higher than the controls. Plasma lactate showed a slightly increase during air exposure and was significantly higher than the controls only 1 hour after recovery in water (from 4115.42 nmol/mL in T0 to 6423.84 nmol/mL in TR1) while piruvate increased after 6 hour in water (from 171.87 nmol/mL in T0 para 243.96 nmol/mL in TR6). Hematocrit, red blood cells, hemoglobin concentration and mean corpuscular hemoglobin concentration increased significantly during air exposure. On the first hour of air exposure the lipid hydroperoxide (HP) increased. There was a reduction of catalase (CAT) and superoxide dismutase (SOD) activity and an increase of glutathione peroxidase (GPX) during air exposure. Air exposure can be characterized as an stressor agent to H. unitaeniatus and imply in physiological adjustments to keep the O2 transfer from air to tissue and homeostasis as well as energy mobilization.
Comunidade fitoplanctônica do reservatório de Barra Bonita e sua relação com a composição e quantidade de polissacarídeos extracelulares e agregados gelatinosos
(Universidade Federal de São Carlos, 2006-03-13)
Dellamano-Oliveira, Maria José
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Vieira, Armando Augusto Henriques
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https://lattes.cnpq.br/4428377384377272
(Gelatinous aggregates (lake snow) from an eutrophic Brazilian reservoir and their relationships with abundant phytoplanktonic algae). Lake snow and phytoplankton studies were conduced in Barra Bonita Reservoir, in the Tietê River basin, southeastern Brazil. Monthly sampling from April 2002 to January 2004 and two intensive sampling (dry and wet periods) were performed in six depths (0m, 1m, 3m, 5m, 10m and 17m deep), at a sample station localized 3km upstream the reservoir dam. Among the sampled months the highest numbers of aggregates were registered in August 2002 (167 agg.L-1) and September 2002 (230 agg.L-1). The mean numbers of aggregates registered in the intensive samplings was 38 agg.L-1 in June 2003 and 68 agg.L-1 in December 2003. Seasonal occurrence of algal species aggregated to polysaccharidic matrices followed the dynamic of dominant species in the Reservoir. Aulacoseira granulata and free cells of Microcystis sp. were the most frequent taxa in the aggregates (70%) in the majority of samples. Other species, as Pseudanabaena mucicola, Microcystis aeruginosa, Planktothrix tropicalis, Cyclotella menegheniana, Cryptomonas sp, Actinastrum hantzschii, Quadrigula lacustris and Schroederia indica were registered in less frequency (10% to 15%). The monosaccharide composition of the gelatinous aggregated polysaccharides was the same registered in dissolved carbohydrates samples, reinforcing the importance of phytoplankton as the major source, chiefly of polysaccharides and of the gelatinous aggregates in the transport of these sugars through the water column. However, studies concerning gelatinous aggregates in freshwater are recent and more investigation are needed to confirm the patterns showed in our results.
Analiticidade, na variável espacial, da solução do problema de Caucky para a equação de KdV
(Universidade Federal de São Carlos, 2006-03-13)
Miotto, Márcio Luís
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Petronilho, Gerson
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https://lattes.cnpq.br/5917989984472668
In this work we use bilinear estimates and point fix theorem to show that the solution to the initial value problem for the Korteweg-de Vries equation with analytic periodic initial data is analytic and periodic in the space variable.
O estatuto do real em Lacan: dos primeiros escritos ao seminário VII, A ética da psicanálise
(Universidade Federal de São Carlos, 2006-03-13)
Chaves, Wilson Camilo
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Simanke, Richard Theisen
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https://lattes.cnpq.br/5431145327759147
The present work seeks to elucidate the notion of Real in Lacan, from the first writings to the seminar VII, The Ethics of the Psychoanalysis. Initially, the relationships are privileged: Imaginary and Real; Symbolic and Real; Symbolic, Imaginary and Real. After the elucidation of those relationships, it is advanced for the moment of transition of the concept of Real, redoing Seminars IV, V, VI and some referring texts to them. Here, Lacan is verified retaking the present idea from the seminar III, The Psychoses, that the Real is what always comes back to the same place. It is arrived, like this, to the seminar VII, dedicated to the Ethics of the Psychoanalysis, in that is shimmered the relationship among the Real and das Ding. He/she/you sees her, here, that the Real is of the order of das Ding. The Ethics of the Psychoanalysis, of that sorts things out, it is centralized in that Real one and it emphasizes the sublimation as the one that elevates the object to the dignity of das Ding. The work is concluded affirming that Lacan, more ahead in your teaching, it will formulate the Real as being of the order of the impossible, as well as it will be served as the knot borromeano, interlacing, once and for all, the three registrations: Real, Symbolic and Imaginary.
Monitoramento de propriedades de condensados de Bose-Einstein interagindo não ressonantemente com campos óticos via detecção contínua de fotóns
(Universidade Federal de São Carlos, 2006-03-13)
Arruda, Luiz Gustavo Esmenard
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Pratavieira, Gilberto Aparecido
;
https://lattes.cnpq.br/6185403031457140
In this work we consider an of - resonant interaction between optical fields and a Bose - Einstein condensation. We used a continuous photo detection model to study the efects of the counting of k photons of the optical field upon the properties of the atoms in the condensate. We have obtained the density operator of the interacting system conditioned to count k photons and one relation between the moments of the distribution of photons and the moments of the distribution of atoms. We analyze the efects of the photo counting in two specific cases: in the first case, we analyze the efects of the photo counting upon the state of a pure condensate at zero temperature and in the second case, upon the tunneling dynamics of a pure condensate at zero temperature confined in an double well potential like.
A expansão urbana em áreas de fundo de vale na cidade de Bauru-SP
(Universidade Federal de São Carlos, 2006-03-15)
Barbosa, Valter Luís
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Nordi, Nivaldo
;
https://lattes.cnpq.br/8168865557947289
Bauru is considered an important city in the regional context of the São Paulo State. It is situated in the center-west of the state and its main economical activity is the service sector. The urban growth of Bauru has occurred in the bottom of the valley and that compromised the ecological condition in the urban mean. Also known as the "city without limits", Bauru has been suffering with the public politics of the city government, associated with the conditions of the urban environment appropriations, the financial capital and real state, besides the irregular use of the urban soil, all this contributing to accentuate the unbalance of the physical nature, the landscape and the social conditions of the inhabitants that live in areas situated in the bottom of the valley. The purpose of this research is to identify and to analyse the importance of the Special Sectors of Conservation of the Bottom of the Valley also called SEC in the urban system and in the maintenance of life quality to local communities. In this investigation, we used and analysed the laws established by the Town's Plan, in order to check the execution of the environment legislation about the occupation of urban space in the areas of the bottom of the valley. It was observed that the social environment degradation in the Special Sectors of Conservation of the Bottom of the Valley SEC in Bauru has became evident, this meaning that the urban environment is in crisis and it is risky for the ecosystem capacity. It was also verified that the growth of the city has been orientated to the appropriation of the urban space, without considering the social and the natural aspects of the environment, resulting in fragmented actions and in the wasteful of public resources. The public practices of Bauru local administration does not accomplish the legislation in effect by the Town's Plan, risking the proper development of the city when avoiding the environment problem in the Special Sectors of Conservation in the Bottom of the Valley. The urban expansion growth to new areas made that the bottom of the valley could express how are the relations between the public power and the different kinds of interests established in the urban environment, making the Special Sectors of Bottom of the Valley objects to be used to a few people, in detriment of the most of the population, that live in helpless situation, contributing to accelerate the degradation of the social-environment process. This work has the intention to be helpful for the comprehension of the physical nature relations in Bauru urban environment and to add support as to make it easier to the local government to direct its actions to a democratic administration concerning to the city urban expansion.
O estudo do limite de transporte interfilamentar de supercorrentes em amostras supercondutoras de BSCCO
(Universidade Federal de São Carlos, 2006-03-15)
Deimling, Cesar Vanderlei
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Ortiz, Wilson Aires
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https://lattes.cnpq.br/0241177338066307
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https://lattes.cnpq.br/3543120613457891
In this work, we have studied the behavior of the line H*(T) in filamentary samples of BSCCO, which were grown by the LFZ technique, Laser Floating Zone. Previously studied in other specimens prepared by specific routes for exemple, samples of Mgdeficient MgB2; YBCO prepared by the Sol-Gel technique; or polycrystalline samples of Nb the H*(T) frontier defines the region in the magnetic fase diagram above which the intergranular critical current density vanishes. The H*(T) line is an extrinsic feature, dependent on the preparation and subsequent heat treatment of the samples, observed only in specimens having a narrow intergranular critical current distribution, which can be obtained controlling properties such as granularity. Measurements of ac-susceptibility as a function of temperature has been performed, for different values of the magnetic excitation field, from which a point was determined, T*, above which the ac-susceptibility is independent of the intensity of the magnetic excitation field. This means that, above T*, only the intrafilamentary regions are able to transport supercurrents. Relating the magnetic measurements with results of transport measurements four terminals and flux transformer we have found a complete similarity between T* and the offset critical temperature, Tc off. We have also verified that T* depends on the field H, so that the magnetic phase diagram includes an extrinsic frontier H*(T), confirming the original expectation that the intergranular space surrounding the grains of a system with controlled granularity, may constitute an efficient set of pinning centers for magnetic flux, what occurs, in fact, in the region to which H*(T) is an upper bound, where the intergranular critical currents are nonzero. It is quite impressive that different samples present practically coincident H*(T) frontiers, what reinforces the prediction that the studied line has a universal character, as long as the sample fulfills the criterion of exhibiting a narrow intergranular critical current distribution.
Prática de ensino de química e metodologia investigativa: uma leitura fenomenológica a partir da semiótica social
(Universidade Federal de São Carlos, 2006-03-17)
Zuliani, Silvia Regina Quijadas Aro
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Hartwing, Dácio Rodney
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http://plsql1.cnpq.br/sigef_imp/PRC_HIST_PROC?F_COD_RH=K4702323E9
The Practical of Education, as integrating disciplines between the specific knowledge of Sciences and the pedagogical knowledge for the teaching exercise have become the locus of the quarrel about educational formation. In this work we present the results of a research carried through a project of intervention, made with Chemistry studensts, based in the Investigative Methodology, in the development of the discipline Practical of Chemical Education I and II, at the Universidade Federal de São Carlos. The objective of this research was to search the perceptions of the students about their own learning and its transference to other contexts, useing the referencial considered by the Fenomenology and by Social Semiotic for data analysis. This analysis confirms the potential of the methodology proposal in the metacognitive development of the students and indicates a process in their conceptions. Gradually they perceive the construction of learning strategies as a process of personal construction. On the other hand, a valuation of this construction occurs as professional knowledge that needs to be developed in the pupils through the performance of the teacher (transference to other contexts and applicability of the knowledge). The reflection propitiated for the students took them to recognize the complementarity between teaching and learning, becoming both unassociable.The pupils were capable to construct and to reconstruct the meaning of learn with the final point in the perception of the responsibility for the own process of learning and in the necessity of applying these knowledge in new contexts, including the professional activity.
Avaliando aspectos de linguagem de crianças deficientes auditivas usuárias de Língua Brasileira de sinais
(Universidade Federal de São Carlos, 2006-03-17)
Bandini, Heloisa Helena Motta
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Rose, Julio Cesar Coelho de
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https://lattes.cnpq.br/3386857761295187
;
https://lattes.cnpq.br/8852973471847843
Efeito da dieta suplementada com vitamina E e cobre nas respostas metabólicas e antioxidantes de matrinxã, Brycon cephalus (Gunther, 1869), frente à hipóxia
(Universidade Federal de São Carlos, 2006-03-17)
Santos, Laila Romagueira Bichara dos
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Fernandes, Marisa Narciso
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https://lattes.cnpq.br/3021357484136942
The diet is an essential factor for the growth and maintenance of vital functions as well as to ability fish to reply the stressors. The reduction of oxygen concentration in the water may occur mainly in fish culture ponds, and may reduce the growth rate of the animals due to metabolism changes. Therefore the supplementation of the diet with copper and vitamin E can improve the animals defenses. Matrinxã specimens, Brycon cephalus, promising specie for fisheries, were fed with commercial ration (Co) and rations supplemented with vitamin E (E) and vitamin E+copper (E+Cu) during 30 days following by exposure to hypoxia (Hpx) during 24h (DO = 2,87 mgO2/L). The hematological variables [hematocrit (Hct), hemoglobin concentration ([Hb]), red blood cells (RBC), mean corpuscular volume (MCV), mean hemoglobin concentration (MHC) and mean corpuscular hemoglobin concentratrion (MCHC)]; metabolic changes such as concentrations of glucose, lactate, piruvate, ammonia, glycogen and protein in liver, red and white muscles and plasma (exception of glycogen) and, the oxidative stress parameters as concentration of peroxide lipids (HP), activity of superoxide dismutase (SOD), glutathione peroxidase (GHS-Px) and catalase (CAT) (exception in plasma) in the same tissues, including the gills and heart. The diets E and E+Cu may increase the aerobic capability of matrinxã when in hypoxic condition as there were increases of [Hb] and MCHC in group E+Cu and an increase in MCHC in E accompanied by an increase in the pyruvate and no change in lactate in most of tissues of fish fed wit supplemented diets. These results support the view that the both supplemented diets, and mainly the E+Cu, seem to increased the aerobic capacity of matrinxã during hypoxia. Hypoxia increased HP concentration only in the plasma and the supplemented diet change the oxidative stress, hematological and metabolical parameters. The diet E reduced HP concentration in the heart and red muscles during hypoxia and the diet E+Cu increased the enzyme concentration and activity without generated HP increase, even in conditions of higher aerobic metabolism. The obtained results suggest that the supplemented diets increased the aerobic capacity of matrinxã during hypoxia without increasing oxidative stress, while the metabolic adjustments front to the reduced concentration of O2 had been efficient to maintain the O2 delivery to the tissues since the hypoxia only modified the parameters analyzed when in association with the differentiated diets.
O ensino de história e o desafio da aprendizagem dos alunos nas classes de aceleração
(Universidade Federal de São Carlos, 2006-03-20)
Brancalion, Elayne Batista Siqueira
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Bittar, Marisa
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https://lattes.cnpq.br/9727553407488788