Repository logo
Communities & Collections
Entire repository
About
English
العربية
বাংলা
Català
Čeština
Deutsch
Ελληνικά
Español
فارسی
Suomi
Français
Gàidhlig
ગુજરાતી
हिंदी
Magyar
Italiano
Қазақ
Latviešu
മലയാളം
मराठी
Nederlands
ଓଡିଆ
Polski
Português
Português do Brasil
Русский
Srpski (lat)
Српски
Svenska
తెలుగు
தமிழ்
Türkçe
Yкраї́нська
Tiếng Việt
繁体中文
Have you forgotten your password?
  1. Home
  2. Browse by Date

Browsing by Issue Date, starting with "2014-11-29"

Filter results by year or month
Now showing 1 - 20 of 16765
  • Results Per Page
  • Sort Options
  • Loading...
    Thumbnail Image
    Item type:Item,
    Avaliação dos métodos de imersão, spray e dinâmico utilizados na fabricação de filmes nanoestruturados de nanofolhas de grafeno pela técnica de automontagem.
    (Universidade Federal de São Carlos, 2014-11-29)
    Mello, Waldomiro Luiz Rios de
    ;
    Riul Júnior, Antonio
    ;
    https://lattes.cnpq.br/0751163307734256
    ;
    https://lattes.cnpq.br/9758791735720365
    ;
    Ferreira, Marystela
    In this work we have compared the way graphene oxide nanoplatelets are nanostructured in bilayers of poly(diallyldimethylammonium chloride) (PDDA) and reduced graphene oxide stabilized in poly(sodium 4-styrenesulfonate) (GPSS), called as (PDDA-GPSS)n, with n representing the number of deposited bilayers. LbL (layer-by-layer) films were fabricated by the self-assembly technique throughout the dipping, spray and dynamic methodologies, available at Laboratory FINEP1, UFSCar, campus Sorocaba. When compared with other bottom-up strategies employed in the build-up of nanostructured ultrathin films, the LbL technique is simple, cheap and easy to handle, beside the incorporation of distinct materials in the film structure, not limited to the form and size of substrates. The times used for the polyelectrolytes in the dipping and dynamic methods were based on the kinetic growth of the (PDDA-GPSS)8 films. In the spray methodology the time used was based initially in the literature and further confirmed by experimental data considering pressure and spray time. All nanostructures formed were characterized by UV-vis spectroscopy, atomic force microscopy, scanning electron microscopy, profilometry and impedance spectroscopy. In all cases it was observed a linear growth of the LbL structures, pointing that the same amount of material was adsorbed at each deposition step. Films obtained from the dynamic methodology indicated higher amount of material adsorbed in the nanostructures, and by an adequate control of the parameters used in the self-assembly methods by physical adsorption one can make a fine tuning regarding to the spontaneous aggregation of the nanoplatelets at solid interfaces.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Estratégias espectroanalíticas para análise química inorgânica de plantas medicinais
    (Universidade Federal de São Carlos, 2014-12-01)
    Virgilio, Alex
    ;
    Nóbrega, Joaquim de Araújo
    ;
    https://lattes.cnpq.br/8833989058164529
    ;
    https://lattes.cnpq.br/5249134846307879
    This thesis describes the development of analytical procedures based on direct solid analysis by high-resolution continuum source atomic absorption spectrometry in graphite furnace (SS-HR-CS GF AAS) and aqueous solutions by flame (HR-CS F AAS), tungsten coil atomic emission spectrometry (WC AES), standard dilution analysis for inductively coupled plasma optical emission spectrometry (SDA ICP OES) and inductively coupled plasma mass spectrometry with a tandem mass spectrometer (ICP-MS/MS) for inorganic chemical analysis of medicinal plants. In the first study, SS-HR-CS GF AAS was evaluated for the determination of Al, Cr, Ni and V. The development of an atomizer heating program with an additional air-assisted pyrolysis step and use of chemical modifier for Cr, makes feasible the use of calibration with aqueous standards for solid sample analysis. Limits of detection of 3, 18 and 7 ng g-1 were obtained for Cr, Ni and V, respectively. Aluminum was determined by HR-CS F AAS due to its high content in the samples, and presented a LOD of 10 μg L-1. For studies involving the determination of Al, Cr and V by WC AES, it was developed a new method for atomizer temperature monitoring, in order to perform more accurate and controllable heating programs. The use of conditioned coils, chemical modifiers for sensitivity enhancement and a pyrolysis step produced lower limits of detection (0.1 mg g-1 Al, 9 μg g-1 Cr and 13 μg g-1 V) and better precision. In another study, it was evaluated the development and application of a new calibration method called standard dilution analysis (SDA) for the determination of Al, Ca, Fe, Mg, Mn and Zn by ICP OES. SDA combines the benefits of matrix matching as in the standard additions method, and the correction of interferences similarly to internal standardization approach without any instrumental modifications. The procedure has high sample throughput and it is suitable for routine analysis. SDA was compared to different conventional calibration methods for CRMs analysis and recoveries in the 88 - 112 % range were obtained by the proposed method. Limits of detection of 2 (Al) ; 0.1 (Ca) ; 0.02 (Mg) ; 0.3 (Fe), 0.1 (Mn) and 0.1 μg g-1 (Zn) were obtained. In the last study, it was evaluated the performance of ICPMS/ MS for As, Cd, Cr, Ni, Pb and V determination in phytotherapic drugs. By using the MS/MS configuration, oxygen in octopole reaction system (ORS) and oxide detection for As and Cr, results with good accuracy and precision were obtained. In these cases, limits of detection of 10 (As); 0.2 (Cd); 8 (Cr), 8 (Ni), 3 (Pb) and 2 ng g-1 (V) were obtained.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Liberdade sob tensão: negros e relações interpessoais na São Carlos pós-abolição
    (Universidade Federal de São Carlos, 2014-12-01)
    Palma, Rogério da
    ;
    Truzzi, Oswaldo Mário Serra
    ;
    https://lattes.cnpq.br/5005536921435787
    ;
    https://lattes.cnpq.br/9921508438209875
    Post-abolition can be conceptualized as a historical moment in which places and social hierarchies built during centuries crumble. Master and slave, essential categories to understand slaveholding societies, don´t make sense anymore in this new social reality. By bringing the promise of freedom for the former captive, abolition established new bases for negotiation and therefore potentiate certain types of conflicts. While some tried to keep, even if under other terms, the old social asymmetries, former slaves sought to assert their new legal and social status of citizen. Through an approach of a variety of documentary sources of the period, this paper aims to demonstrate that interpersonal relationships were a set of interactions in which these political struggles by redefining certain social situations were present. Through of the interpersonal relationships, one can perceive the establishment of new forms of subjection to the black population, which saw their citizenship be precarious by the racialization of social relations characteristic of this time.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Programa Institucional de Bolsa de Iniciação à Docência: contribuições, limites e desafios para a formação docente
    (Universidade Federal de São Carlos, 2014-12-01)
    Deimling, Natalia Neves Macedo
    ;
    Reali, Aline Maria de Medeiros Rodrigues
    ;
    https://lattes.cnpq.br/5059722794651091
    This study had as principal focus the identify and analyze of the contributions and limitations of the Programa Institucional de Bolsa de Iniciação à Docência (PIBID) of the Universidade Tecnológica Federal do Paraná (UTFPR) for the training of teaching initiation scholarship fellows and teaching professional practice of supervisors of basic education, employees and institutional, management processes educational and area coordinators program. For both, a qualitative approach research was performed with one institutional coordinator, two area coordinators in managing educational process, four area coordinators, seven supervisors, four employees and forty eight teaching initiation scholarship fellows of four subprojects PIBID UTFPR: subproject Physics, campus Curitiba, subproject English Letters, campus Pato Branco, subproject Mathematics, campus Toledo and subproject Chemistry, campus Londrina. As a tool for data collection, semi-structured interviews, documents and written narratives provided by the participants were used. For data analysis, we considered the theoretical and political affecting that directly or indirectly influence the processes of teacher training aspects; the national policy of teacher education, the legal instruments that based PIBID and the interpretation of the participants about the influences, contributions and limitations to the program for teacher education and action. The data analysis conducted from this perspective allowed us to discuss the relationship between the career choices of teaching initiation scholarship fellows and objective working conditions and career they see and experience in schools in which they are inserted through the Program; the influences - positive and negative - of the activities and actions developed in schools and at the university in the subprojects analyzed - in training and professional practice of teaching involved; the relationship between the university, the partner schools and the state schools and the role and return each of these spheres in the development activities PIBID; and resources and material conditions that are offered to the program to achieve their goals and for the training and teaching professional practice of its participants. Each of these aspects was analyzed separately in four major categories of analysis, from which we discuss broadly and at the same time, particularly the contributions, limitations and challenges of the program for the training and professional practice of its participants. From the results obtained, we believe that the development of policies and programs that aim to facilitate and mediate the contact of students with professional practice of teaching in the period of initial training, as well as the closely relationship between the university and the school, as is the PIBID case, it is essential for both the processes of teaching and practice professional as to the quality of this process. However, thinking about education policy and, more specifically, a politics teacher training involves dealing with the same seriousness, both the processes of initial and ongoing training as the actual working conditions, salary and teaching career - both basic education as higher education - in the search for quality education in real terms and not just formal terms.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Avaliação de uma biblioteca universitária na perspectiva dos usuários: o caso da Biblioteca da Unesp Câmpus de Rio Claro
    (Universidade Federal de São Carlos, 2014-12-02)
    Silva, Josimeire Moura da
    ;
    Furnival, Ariadne Chloe Mary
    ;
    https://lattes.cnpq.br/1291482506649810
    This monograph pertains to the area of Librarianship known as “Studies of Users and Uses”, an area which focuses in studying and evaluating the uses and users of all kinds of libraries and information and services centers. In this manner, the study reported here had as its main goal to map the perception that the users of a university library have of its services. More specifically it aimed to identify the library users’ profile; to determine the knowledge and concepts the user has in relation to these products and services and to map the general view that they have of the library as a whole. The methodological instruments adopted were bibliographical research; documental research and the use of an electronic data collection instrument sent by e-mail to the whole academic community to identify frequency, type of reading, service evaluation, library collection, space/ physical structure evaluation and product/ services evaluation. After collecting data, the information went through a process of tabulation and simple statistical analysis to better interpret and present these results. It can be said that the proposal was realistic and all the objectives were achieved, and that this work ended up being a tool of approximation between users and the library, and collecting answers regarding their perception about the mentioned topics. This project aimed to identify in the results of this study the needs and priorities for possible improvements to the products and services of the library, that is, it hoped to inform the professional practice, turning it into a more evidence-based practice.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Estudo sobre o uso do dispositivo leito de acolhimento noturno em Centro de Atenção Psicossocial Álcool e Drogas CAPS AD
    (Universidade Federal de São Carlos, 2014-12-02)
    Moura, Aline Silva de
    ;
    Fioroni, Luciana Nogueira
    ;
    https://lattes.cnpq.br/8086810053892035
    ;
    https://lattes.cnpq.br/1802598771589178
    This research aimed at investigating the device called " overnight-stay " in moment of crisis the user of alcohol and other drugs , in the context of a Psychosocial Care Center Alcohol and Drugs 24 ( CAPS ad III ) , in Campinas SP . It was intended to characterize the users who occupied overnight-stay according to demographic data, data on the use of psychoactive substances, data relating to the commencement CAPSad III as well as characterize the bed occupancy rates and indications of the team for their use. This is a descriptive cross-sectional study (April / 2012 to March / 2013), using research roadmap and documentary record data from four sources: medical records, insertion records in overnight-stay, books and bank shift changes data team. As a complementary source of information we used interview with service managers. Data were organized and analyzed from a computerized database using the Excel program. The research pointed out that the bed night shelter was occupied by 167 users 315 times, most males (77,25%), single (46,11%), aged between 31 and 40 (36,53%), incomplete elementary education (40,12%), unemployed (51,50%) and living with a family member (50,30%) . The demand for treatment was mainly due to the use of multiple drugs (53, 89%), especially if alcohol linked to another substance, followed by the exclusive use of alcohol (39,52%). Most cases (81,43%) had a comorbidity, particularly psychiatric (51,23 %). The length of enrollment in CAPSadII patients for 6 months (36,53%) and equipment for emergency care were the services most have referred users (30,43%). Among the indications for insertion into overnight-stay, include the promotion of abstinence (34, 85%), psychiatric stabilization (21,08%) and the need for protected environment (20,64%). Changes in mental examination were significant (66, 67%), especially mood changes (29, 97%) and insomnia (22, 67%). Significant portions of users were on the streets (34,13%) which requires other joints and need of supporting this vulnerable population. The logic of overnight-stay occupancy rates and indications of the team for their use were characterized. The overnightstay in CAPSad III , is seen as an opportunity to expand attention to the crisis the user of alcohol and other drugs in the anti-asylum logic , as they allow the regulation and care of the team. His newly deployment within the network of care to the user of alcohol and other drugs brings relevance to this investigation given the fact that it can contribute to a better understanding and characterization as well as for actiong planning.
  • Loading...
    Thumbnail Image
    Item type:Item,
    A estética da cultura popular na folia de momo do Recife: questões de alteridade, corporeidade e transgressão
    (Universidade Federal de São Carlos, 2014-12-02)
    Pajeú, Hélio Márcio
    ;
    Miotello, Valdemir
    ;
    https://lattes.cnpq.br/9131819326282708
    ;
    https://lattes.cnpq.br/1483750169047328
    The perspective of this work was to understand the culture as an opening way to alterity in the process of identity construction of a socially organized group, reflecting from the philosophy of Mikhail Bakhtin and the Circle as this sphere, in general, acts as a point against the formation of words and dialogues. The attention turned to the festivities and popular demonstrations that insert in Pernambuco's popular culture, specifically in the carnivalesque cycle, the attempt to delineate a scope of relations and permanent vehicles and reflected in everyday life that build a (dis)order in the aesthetic of popular culture of Recife s carnival. Thereby, the overall objective of this work is to reflect how images of grotesque realism incarnate in bodies and form this ambivalent aesthetics through which citizens can experience their freedoms and build accountable acts inside and outside of the official days of Momo s revelry It was point of interest of this research the ways in which such manifestations to embody a grotesque corporeality in their practices break social hierarchies to put in interaction and discourse game the various classes that take part in them, sketching out a popular culture that is based on human interactions infringement and in the establishment of responsible acts of loveliness. As a starting point for understanding it was highlighted the frevo, rhythm transformed over the years into an ideological symbol of Pernambuco s identity, to understand it in relation to other events such as Boi de Carnaval, Maracatu, Urso de Carnaval and the Galo da Madrugada. The methodological line that leads the strength of this work was due to the experience of the party from an ethnographic point of view, in order to single out all its phenomena in the existence of life, to understand it among a dialogical readback process of texts in various materialities, organized in secondary speech genres that function as the meeting place of ethics and aesthetics. We conclude that the carnivalesque popular culture cycle has in its grotesque aesthetic the attribute that allows revelers to experience their freedoms on feast days, taking the street and turning it into transgressions stage. The participation and inclusion in the popular universe was essential to conclude that the understanding of culture in the life through the materialized word in texts can only become productive if done in an exotopic perspective, however, participative perspective; otherwise it loses all the wealth and dynamism of responsible acts of man interacting with their fellowmen, turning them into abstraction.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Geração genética multiobjetivo de bases de conhecimento fuzzy com enfoque na distribuição das soluções não dominadas
    (Universidade Federal de São Carlos, 2014-12-02)
    Pimenta, Adinovam Henriques de Macedo
    ;
    Camargo, Heloisa de Arruda
    ;
    https://lattes.cnpq.br/0487231065057783
    ;
    https://lattes.cnpq.br/4731132112733505
    The process of building the knowledge base of fuzzy systems has benefited extensively of methods to automatically extract the necessary knowledge from data sets that represent examples of the problem. Among the topics investigated in the most recent research is the matter of balance between accuracy and interpretability, which has been addressed by means of multi-objective genetiv algorithms, NSGA-II being on of the most popular. In this scope, we identified the need to control the diversity of solutions found by these algorithms, so that each solution would balance the Pareto frontier with respect to the goals optimized by the multi-objective genetic algorithm. In this PhD thesis a multi-objective genetic algorithm, named NSGA-DO, is proposed. It is able to find non dominated solutions that balance the Pareto frontier with respect optimization of the objectives. The main characteristicof NSGA-DO is the distance oriented selection of solutions. Once the Pareto frontier is found, the algorithm uses the locations of the solutions in the frontier to find the best distribution of solutions. As for the validation of the proposal, NSGA-DO was applied to a methodology for the generation of fuzzy knowledge bases. Experiments show the superiority of NSGADO when compared to NSGA-II in all three issues analyzed: dispersion, accuracy and interpretability.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Sistema de recomendação de tags aplicado na catalogação de recursos de aprendizagem
    (Universidade Federal de São Carlos, 2014-12-03)
    Amaral, Anderson Roque do
    ;
    Zaina, Luciana Aparecida Martinez
    ;
    https://lattes.cnpq.br/0192085115595443
    ;
    https://lattes.cnpq.br/9442170836501868
    ;
    Bressan, Graça
    Aspects of social tagging have been studied in the last years aiming at addressing concepts, applicability and techniques related to the generation and management of tags as key elements for the resource research and classification. Social tagging has been recognized as an important alternative for the description of resources available on the Web. Concerning on the rapid growth of resources and their information on the Web, it has become increasingly difficult to find and organize such massive data by traditional methods as based on directories classification. The process of social tagging has been investigated to improve the cataloging of resources, being recommendation algorithms of tags, visualization techniques and automatic generation of tags, among others have been explored for this purpose. Within the e-learning context, the social tagging may assist on building of metadata of learning objects. Thus, all the advantages linked to this model of resources organization, has emerged as solutions for e-learning systems. The main contribuition of a teaching-learning environment is the creation, storing and maintenance of the catalog of learning resources that can be checked and updated continuously. This work proposes a tags recommendation system, improving the process of cataloguing of learning resources on the web. Three experiments were carried out with technician students of a informatics course to validate the proposal: the first one examined the social tagging activity without using the tag recommendation system; the second one was conducted to evaluate the tagging activity, but including the tags recommendation system; and the third one verified the students navigation from the tagged resources created from the first and the second experiment, in order to check that the support of the recommendation was effective in the descriptor vocabulary of the resource.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Proposta metodológica para o escopo da avaliação ambiental estratégica no contexto da fronteira agrícola brasileira
    (Universidade Federal de São Carlos, 2014-12-04)
    Berti, Maria José Ferreira
    ;
    Salvador, Nemésio Neves Batista
    ;
    https://lattes.cnpq.br/9930582531600560
    ;
    https://lattes.cnpq.br/4882962053111789
    The Strategic Environmental Assessment (SEA) is an important tool for the integration of environmental dimension to elaborate Policies, Plans and Programs (PPPs). The SEA may contribute to the elaboration of Plans and Programs (PPs) in the agricultural sector, inserting values which are led to sustainability. In SEA, the scope is crucial for the proper fulfillment of the other steps, ensuring that the planning process from the start integrates environmental and social issues. The stage of the scoping establishes the focus and content of the SEA and the basic and relevant criteria for evaluation. In this context, the present study aims to present subsidies, through a proposal for guidelines for the development of SEAs scope step for plans and programs - PPs - the agricultural sector in the Brazilian Amazon, more specifically in the North and Northeast State of Mato Grosso, which are inserted in agricultural frontier areas in the Cerrado and in their transition to the Amazon biome. Due to the expansion of the agricultural sector in these regions, critical situations were identified in relation to environmental issues, such as accelerated deforestation, fires, loss of biodiversity and the decline in the level of quality of water and soil. These critical situations are related to actions induced by many PPs deployed in the region and SEA is a proper tool to evaluate the relationship between the development options of the agricultural sector in a sustainable manner in relation to natural resources and the effects resulting therefrom. The methodology used in the research was literature review, identifying support methodologies for the preparation of defining the scope of an SEA in the national and international context, collection of secondary data in government institutions, preparation of an environmental baseline and to hold two workshops with a multidisciplinary team of experts. Using driven approach baseline (baseline-led) a sequence of procedures was developed to provide subsidies to the definition of SEAs scope. It was sought to observe both the guiding principles of the European Directive 042/2001/CE and the a practical guide to the Strategic Environmental Assessment Directive of Office of the Deputy Prime Minister-ODPM of 2005, as well as to be based on the current good practices, checked in the bibliography review and in the analyzed case studies. The research main results are the context definition for SEA, the survey of the main PPs of the agricultural sector and the Interfering strategic actions, such as the energy and transportation, the environmental baseline construction, the identification of fundamental environmental themes and their indicators; and the elaboration of a matrix of identification and valuation of the environmental effects, which assist to identify relevant issues to define the SEA strategic objectives.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Educação, trabalho e ideologia : análise da relação agronegócio e educação na região de Ribeirão Preto SP
    (Universidade Federal de São Carlos, 2014-12-04)
    Junqueira, Victor Hugo
    ;
    Bezerra, Maria Cristina dos Santos
    ;
    https://lattes.cnpq.br/1095065753077001
    ;
    https://lattes.cnpq.br/3151153500467324
    This dissertation aimed mainly at understanding the relationship between agribusiness and education, taking as territorial clipping region of Ribeirão Preto - SP. Starting from the transformations of capitalist agriculture and the world of work this goal was divided into two complementary analytical perspectives, the first boils down to understanding how the agribusiness expresses the current ideology of capitalism in the countryside and the school uses space to persuade and convince society that their particular values are universal. The completion of this stage of the research occurred through examination of two projects developed in basic education in the area of study: Agribusiness Project at the School of the Brazilian Agribusiness Association of Ribeirão Preto (ABAG- RP) and the Project AGORA of Industry Union sugar cane (UNICA). In a second step we investigated whether the material conditions for the expansion of higher education in agribusiness and pedagogical proposals that give them support, based on the proposed curriculum degree in Agribusiness Technology in the Faculty of Technology of the State of São Paulo - FATEC. The research was grounded in the dialectical historical materialism in all its stages, from the analysis of the development of capitalism in the countryside in the region of Ribeirão Preto, passing through the understanding of the concept of ideology in the writings of Marx and Engels, Lenin, Gramsci and Althusser to the examining the relationship between work and education. The results show a new phase of development of capitalist relations of production, with further deepening of the contradictions and inequalities in the field. In this sense, agribusiness looking through different ideological apparatuses, including education ensure social support to continue having access to state credit and infrastructure policies. In addition, these changes are require technical training and special professional for the activities of the sector, whose state's role is crucial in the internalization of the costs of reproduction of the classification of a diverse workforce and ideologically subject to the rule of capital.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Museu da Energia de Itu-SP: um estudo sobre a incorporação de recursos tecnológicos que estimulem a preservação patrimonial
    (Universidade Federal de São Carlos, 2014-12-05)
    Dutra, Carolina Corrêa
    ;
    Lana, Rita de Cássia
    ;
    https://lattes.cnpq.br/1816504631940006
    ;
    https://lattes.cnpq.br/5412846884406417
    The present study seeks to evaluate how technological advances can be useful to patrimonial education in museums, without confront their patrimonial identity The increasing globalization and technological advances are changing the media, making the information more accessible and acting as an agent of social inclusion. Patrimonial Education aims to inform the individual about patrimony preservation and his legacy. One of the main factors of damage to historical and cultural patrimony is its disqualification as a source of reference for local identity, created by an absence of information about their importance and increased by a crescent invasion of foreign cultures, which can lead to lose their local identity.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Análise da interação entre ordenamento territorial e biodiversidade: estudo de caso em Villavicencio (Meta, Colômbia)
    (Universidade Federal de São Carlos, 2014-12-05)
    Ortiz-Moreno, Martha Lucia
    ;
    Pires, José Salatiel Rodrigues
    ;
    https://lattes.cnpq.br/4346118357974725
    The city of Villavicencio (Meta, Colombia) has three physiognomic units inside their 131.020 ha of extension: mountains, foothills and savannah. The relief, orographic rain and the tropical temperature have a plenty of abiotic resources, which determine the species diversification. However, human influence is a threat to biodiversity due to deforestation, urban growth and disordered mineral exploration. There are currently 11 species of plants and 62 animal species with some degree of endangerment on the city, distributed in the three physiognomic units. Thus, the objective of this research was to make a proposal to insert biodiversity conservation in the municipal Landplane of Villavicencio. The analyses of usage and land cover between 1988 and 2013 show that the city is leaving the agriculture to one side due to the increasing of extensive cattle ranching, which comes to occupy 58.4% of the territory extending from savannah to the mountain region, where both the fragility of the soil and steep slopes are responsible to cause the loss of natural vegetation cover and accelerate erosion process. These cause the siltation of waterways and threaten the headwaters rivers, where it does the abstraction for human consumption. In parallel, the disorganized sprawl of the urban area follows deteriorating the protected wetlands of the municipality and the current occupation of the territory generates a decrease to the green areas, as well as leisure, home services and mobility. In this scenario, it is proposed to increase the permeability of the countryside and the city, by increasing the quality of the forest fragments and their connectivity by expanding the area of RPA in rivers with water abstraction; recovery of forest cover in conservation units and physiognomic unit in mountain and foothills, along with measures to increase effective public space and mobility, prohibiting conflicting uses in areas with higher environmental fragility of the municipality. These proposals would help for the survival of endangered species and the conservation of local environmental services.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Efeitos do Kinesio taping na cinemática escapular e propriocepção do ombro após fadiga muscular
    (Universidade Federal de São Carlos, 2014-12-05)
    Zanca, Gisele Garcia
    ;
    Mattiello, Stela Márcia
    ;
    https://lattes.cnpq.br/1406279816228350
    ;
    https://lattes.cnpq.br/7200122514782641
    The shoulder joint complex highly depends on dynamic stabilization and sensorimotor control to maintain its functional stability. It is known that muscle fatigue causes scapular kinematics alterations and proprioceptive deficits, and both are related with shoulder injuries. Kinesio taping (KT) is an elastic taping that has been widely used in rehabilitation and injuries preventions. Several effects have been attributed to KT, including muscle facilitation and improvement of proprioceptive feedback. Therefore, the main purpose of this thesis was to investigate the effects of KT on scapular kinematics and shoulder proprioception following a muscle fatigue protocol. This thesis is composed of three studies. The objective of the study I was to investigate the relationship between clavicular movements (elevation and retraction) and the EMG signal recorded on three electrode sites: the traditional positioning (between C7 and the acromion) and two different sites proposed for clavicular fibers evaluation. It was concluded that, although the traditional electrode positioning record the signal from fibers inserted on the acromion, its signal presents high correlation with clavicular movement. Therefore, it can be considered representative in healthy subjects. The study II aimed to investigate the effects of KT for lower trapezius facilitation on three-dimensional scapular kinematics of healthy overhead athletes, following a fatigue protocol consisted of repetitive throwing. Regardless a lower fatigue intensity of serratus anterior when KT was applied with tension compared to no tension, there was no effect of taping on scapular kinematics. Furthermore, although there were statistically significant alterations on scapular kinematics following muscle fatigue, the changes were small and were not considered clinically relevant. This finding was attributed to a possible adaptive mechanism of overhead athletes, who, therefore, do not beneficiate with the use of KT. The study III investigated the effects of KT applied over the deltoid muscle on shoulder joint position sense of healthy subjects, following a fatigue protocol, during arm elevation. There was an increase in the repositioning errors following the fatigue protocol, but there was no effect of the taping. The findings of these studies do not support the use of KT to prevent or minimize the effects of muscle fatigue on scapular kinematics of healthy overhead athletes and shoulder proprioception of healthy subjects.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Estratégias para a programação da produção em ambientes com capacidade flexível controlados pelo sistema PBC
    (Universidade Federal de São Carlos, 2014-12-05)
    Silva, Fábio Molina da
    ;
    Tavares Neto, Roberto Fernandes
    ;
    https://lattes.cnpq.br/6954662222457389
    ;
    https://lattes.cnpq.br/8371146074145702
    The PBC System is a well-known Ordering System that periodically syncronizes the material flow of the shop floor. The PBC has the property of constant and planned production lead-time, a policy of minimal lot sizing and a constant frequency on order releasing. An exhaustive literature review presented in this thesis has shown that work uses PBC when the production capacity is not constant. This is a reality presented in companies where compensatory times off allows the capacity be tranfer between time stamps and employees that can work on diferente positions, allowing the capacity to be managed from one working center to another. This work formally defines those issues using mathematical programming, and defines a set of heuristics to solve it. After the application of the models and heuristics to a set of instances, one can note that the heuristics are eficiente to solve the problem, and the strategy of using PBC is very successful in the studied environment (production system with variable capacity).
  • Loading...
    Thumbnail Image
    Item type:Item,
    Um conjunto de abordagens para a geração da matriz de rastreabilidade de requisitos com suporte de técnicas de inteligência computacional
    (Universidade Federal de São Carlos, 2014-12-05)
    Ditomaso, André
    ;
    Fabbri, Sandra Camargo Pinto Ferraz
    ;
    https://lattes.cnpq.br/2204086299921323
    ;
    https://lattes.cnpq.br/6671188693231155
    Context: Problems in requirements management is considered one of the causes for system failures. One of the activities that helps the requirements management, making it more effective, is the requirement traceability. One of the most important artefacts to determine and monitor the traceability of requirements is the Requirements Traceability Matrix. Nonetheless, establish and maintain the Requirements Traceability Matrix is an extremely laborious and error prone task. Objective: The objective of this thesis is to present a set of approaches that allow to generate the Requirements Traceability Matrix in an automated way, using computational intelligence techniques that allows the generation of more accurate links. Methodology: The proposed approaches explore functional requirements data and natural language processing solutions for determining the traceability matrix. From some experimental studies, the approaches were refined and combined with computational intelligence techniques to increase the accuracy of the traceability links. Results: Four approaches were proposed. The first approach considers that that the dependence of the requirements is related to the data manipulated by them. The second approach explores the use of natural language processing. The third approach combines the previous two approaches with fuzzy systems. Finally, the fourth approach uses artificial neural networks taking the data from the first two proposed approaches as input data. The experimental studies produced satisfactory results for the traceability links determined by the proposed approaches. Case studies were also conducted to evaluate the use of the approaches in the industry. Conclusions: The obtained results support the thesis defended in this research, demonstrating that the use of computational intelligence techniques improves accuracy in traceability links. links.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Análise dos efeitos do fipronil e dimetoato em larvas e pupas de Apis mellifera L. (Hymenoptera: Apidae) africanizada criadas em condições laboratoriais
    (Universidade Federal de São Carlos, 2014-12-05)
    Silva, Carina Aparecida de Souza
    ;
    Nocelli, Roberta Cornélio Ferreira
    ;
    https://lattes.cnpq.br/8934724759636382
    ;
    https://lattes.cnpq.br/0384882576222869
    Africanized Apis mellifera bees Linnaeus, 1758 (Hymenoptera: Apidae), although not native to Brazil, is very important both for the environment and for the economy. However, with the growth of food production and biofuels, there was an expansion of the areas of monoculture consequently was increased also the use of fertilizers and pesticides. Although some insecticides such a fipronil (used in sugar cane) and dimethoate (standard substance in larval tests standardized by the Organization for Economic Cooperation and Development and used in cotton crops), are toxic to bees. Thus the present study aimed to evaluate the biological and histological effects of toxicity of pesticides in the ontogenetic development of Africanized A. mellifera. For this, worker larvae of 1st instar were collected from healthy colonies of the apiary located in the rural town of Piedade/SP and transferred to sterile polystyrene cells, which contained larval diet. After the transfer, the cells were maintained at a temperature of 34±2° C and RH 85±5%, the larvae fed daily from 1st to 5th day. On day 4, were prepared with three different concentrations (20, 5 and 0.5 ng a.i./μL) fipronil and dimethoate a concentration (200 ng a.i./μL) was added 1 μL of each concentration prepared (isolated) under integument of the larva, called acute treatment. The results showed that there was no larval mortality (72 hours) significantly between groups (p>0.20), exposed to fipronil and control, but the pupae rate anomalous (p<0.03) and emergency (p<0.04) was found significant difference. The most common abnormalities were pigmentation on the upper and lower body, head and malformation in the absence of members; pink eye pupa (Pp) and white eyed pupae (Pw) with malformation of the limbs, having formed the eye and with larval body. It is assumed that the fipronil be a neurotoxic compound, he is acting in the regulation and release of Ecdysteroid hormones that are involved in the passage from larva to adult (metamorphic process). After the bioassay dimethoate, pre-pupae were collected (D9) for morphological and histochemical analysis for both treatment groups and for the control. Pre-pupae were processed routinely. Histological sections were stained with Hematoxylin-Eosin. For immunohistochemical analysis, we used the Bromophenol Blue reactions, Periodic Acid-Schiff and Feulgen. By morphological and histochemical analysis, changes were observed in muscle tissue, intracellular spacing of trophocytes and oenocytes, increase in the amount of proteins and lipids and nuclear branch in trophocytes. Most of these characteristics are described pupae, however individuals were analyzed in the pre-pupae stage, namely, and it is likely that the substance studied on the development of bees exposed to the insecticide. Dimethoate could activate the cellular detoxification system by carboxylesterases enzymes and, in this way, cause the hydrolysis of the Juvenile Hormone and hence the acceleration of the metamorphic layers. The high rate of abnormalities in the pupal stage and decreased emergency rate in individuals exposed to fipronil raises concerns with decreasing productivity in commercial apiaries located in agro-ecosystems. In addition, the advance from the present study calls attention to damage in the colony, as in nature the metamorphosis of the phases have certain duration. This can cause physiological disorder could indirectly damage the chain pollination by bees.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Avaliação da influência do estresse e estímulos contextuais no desenvolvimento da dependência : abordagem comportamental e molecular
    (Universidade Federal de São Carlos, 2014-12-05)
    Carneiro de Oliveira, Paulo Eduardo
    ;
    Cruz, Fábio Cardoso
    ;
    https://lattes.cnpq.br/4804337113083801
    ;
    Planeta, Cleopatra da Silva
    ;
    https://lattes.cnpq.br/2514762545280942
    This thesis is part of the requirements for obtaining Ph.D. title by Joint Graduate Program in Physiological Sciences, UFSCar/UNESP. The results presented refer to experiments developed in Laboratório de Neuropsicofarmacologia da Faculdade de Ciências Farmacêuticas de Araraquara and Behavioral Neurosciense Branch / National Institute on Drug Abuse - National Institutes of Health, Baltimore, USA. In chapter 1 we made a general introduction on the theories that formed the basis of the current concept of drug addiction. In this chapter, we elaborate a brief history of social organization and human relationship with drugs. We wrote specifically about both substances used in our studies, ethanol and cocaine, as well as their impact on public health and the pharmacological mechanisms of action. In chapter 2 the aim was to evaluate the influence of factors such as early age of onset of ethanol use and the effect of stress on the seeking behavior and consumption of this drug. For this, we used the animal model of ethanol self-administration and two types of social stress (social deprivation and social instability) in rats during adolescence. To verify whether behavioral changes were promoted by molecular neuroadaptations, we quantified gene expression involved in the development of ethanol dependence in amygdala, responsible area for stress-induce behaviors. In chapter 3 we investigated whether daun02 inactivation method is able to inhibit cocaine-induced locomotor sensitization in rats. This method is based on the theory that only a small group of sparsely distributed neurons (neuronal ensembles) are activated during behavior exhibition. For this purpose, we used transgenic rats carrying a c-fos-lacZ promoter which when activated induces the expression of ß-galactosidase enzyme only in activated neurons. The ß-galactosidase converts the prodrug daun02 into a toxic metabolite, driving to cell apoptosis. Thus, we evaluated whether the neuronal ensembles activated during the development of locomotor sensitization are the same as those recruited in the expression of this behavior. In chapter 4 we investigate whether mice express context-specific locomotor sensitization and whether the exhibiton of this behavior is related to synaptic changes in the nucleus accumbens. For this we use male and female transgenic C57BL/6 adult mice expressing Fos-GFP, a protein sensitive to green light, only in activated cells. Thus, using a confocal microscope, we assessed the presence of silent synapses only in activated neurons (neuronal ensembles) related to the expression of locomotor sensitization. Like us, researchers in the field of neurobiology of drug addiction have been studying the factors that can facilitate the initiation and maintenance of drug use and how it may trigger the addiction. Thus, this thesis aimed to investigate the influence of age, sex, stress, memory, associative learning, different types of drugs (cocaine and ethanol) and different types of animal models (self-administration and sensitization) in the development of drug addiction.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Análise das habilidades testadas e validade diagnóstica de instrumentos para avaliação de linguagem na doença de Alzheimer, no Brasil
    (Universidade Federal de São Carlos, 2014-12-06)
    Francisco, Helen Capeleto
    ;
    Barham, Elizabeth Joan
    ;
    https://lattes.cnpq.br/9868595523538592
    ;
    https://lattes.cnpq.br/1643886824126050
    Early detection of Alzheimer's disease (AD) can assist in the identification of causes of AD and of interventions that can slow the progression of this disease. The aim of this study was to compare language assessment tools used in Brazil to diagnose AD, to determine: (a) which linguistic skills are assessed, (b) which of these instruments present the greatest diagnostic validity and (b) to identify gaps in the language skills that are evaluated and the availability of research information about the precision and validity of each instrument. To obtain this information, the Bireme database was searched using the keywords language AND Alzheimer AND (test OR assessment OR instrument). Studies were selected using the following criteria: (a) data about the diagnostic validity of language tests for the assessment of AD, (b) conducted in Brazil, (c) published in English or Portuguese, (d) with access to the full text. Seven articles met all these criteria. A second search strategy involved obtaining articles with the information we were seeking, which were cited in the seven articles already selected. An additional six articles were encountered. The instruments analyzed included: Verbal Fluency Test, Teste de Rastreio de Doença de Alzheimer com Provérbios, Token Test, Boston Naming Test, Naming Test of Brief Cognitive Battery The Dog Story, Le Boeuf (1976), Protocole Montréal d'Évaluation de la Communication, Boston Diagnostic Aphasia Examination, Arizona Battery for Communication Disorders of Dementia and ASHA FACS. These instruments were compared with respect to the populations evaluated (elderly with no cognitive impairments, with mild cognitive impairments, and with AD), the number of people tested, their educational levels, and indexes for sensitivity (correct classification of AD patients) and specificity (correct classification of people without cognitive impairments), which reflect the precision and validity of each instrument, with respect to the diagnostic process. Among the language tests that were evaluated, the Semantic Verbal Fluency Test appears to be the test with the best levels of diagnostic validity for detecting cognitive changes during the early stages of AD, in comparison with elderly people with no cognitive impairments (sensitivity of 90.5% and specificity of 80.6% among illiterate elderly; sensitivity of 82.6% and specificity of 100% for the diagnosis of elderly people with more than eight years of education). However, there are many gaps in the information available about the precision and validity of this and all the other instruments, restricting their usefulness in diagnosing AD, at this time.
  • Loading...
    Thumbnail Image
    Item type:Item,
    Cultura da terra, cultura das águas: o fenômeno da Transumância em Marabá (PA)
    (Universidade Federal de São Carlos, 2014-12-08)
    Araújo, José Augusto Carvalho de
    ;
    Martins, Rodrigo Constante
    ;
    https://lattes.cnpq.br/6617183095074852
    ;
    https://lattes.cnpq.br/2900892621227578
    L'étude est basée sur le processus de la transhumance qui se produit sur les rives du Tocantins Itacaiúnas et rivières de la commune de Maraba situé dans l'État sud-est du Para, sur les flux et reflux de nos rivières. La transhumance est due au transfert des ressources humaines temporairement par des contraintes environnementales ou les questions financières. Ce phénomène se produit chaque année à la suite d'inondations constantes qui se produisent dans la ville de Maraba, dans les zones les plus basses de la ville, semblable à ce qui se passe dans pionnier Maraba (ancien Maraba). En raison de cet événement, ces groupes sociaux doivent être mis aux quartiers résidentiels les plus élevés. Les noyaux qui servent de refuge sont la Nouvelle Ville et la Nouvelle Maraba. Cependant, la plupart des sans-abri, comme une question de stratégie et de survie, de finalement passer à des abris temporaires construits par les habitants eux-mêmes ou par la défense civile locale. Le processus de la transhumance se produit souvent des décennies sur les rives des fleuves Itacaiúnas et Tocantins dans la zone urbaine de la municipalité de Maraba. Bien que ce phénomène est lié à une question de mode de vie culturel de la ville côtière, l'un des principaux problèmes concerne une nouvelle main-d'oeuvre des riverains qui vivent dans les villes et ont subi les impacts des changements productifs dans l'environnement urbain. Tout comme nous ne pouvons pas ne pas tenir compte de la création de poches de pauvreté des femmes, des enfants, les migrants et les habitants des bidonvilles à la périphérie des villes, associées à un capitalisme périphérique qui a généré la marginalisation sociale d'une partie de la population (Oliveira, 2007). En outre, riverains, pour des raisons culturelles, sont connectés en permanence avec les rivières et la ville où s'occupe principalement de commerce et la fourniture de services. Le type d'activité de travail se passe comme la dynamique des flux et reflux de l'Amazonie. La recherche sur le terrain a été réalisée en 2012 avec la vie côtière dans la ville et de la souffrance des inondations qui se produisent entre les mois de Janvier à Juin dans la ville de Maraba. Il s'agit d'une étude de cas, étant donné que ce processus migratoire appelé transhumance ou de trajet ou changement de saison se passe en particulier dans cette partie de la ville inondée de Maraba. Diverses sources d'information ont été utilisés, comme les entrevues, l'observation systématique lieu, une source documentaire, les photographies, etc, ainsi que d'une variété de données recueillies par divers informateurs (en bordure de la ville, les pêcheurs, les responsables de la défense civile et les dirigeants Communauté). .
  • «
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • ...
  • 839
  • »
Siga as redes sociais do SIBi
Contato

Repositório Institucional da UFSCar (RI UFSCar)

Av. Biblioteca Comunitária, Campus São Carlos

Rod. Washington Luís, km 235 - SP-310

São Carlos, SP, 13565-905 (16) 3351-8477

Email: repositorio@ufscar.br

Acessos ao repositorio.ufscar.br
Consultar estatísticas de acesso

DSpace software copyright © 2002-2026 LYRASIS

  • Accessibility settings
  • Privacy policy
  • End User Agreement