Browsing by Issue Date, starting with "2011-12-07"

Filter results by year or month

Now showing 1 - 20 of 19236

Modelo Weibull modificado de longa duração
(Universidade Federal de São Carlos, 2011-12-07)
Oliveira, Cleyton Zanardo de
;
Perdoná, Gleici da Silva Castro
;
https://lattes.cnpq.br/0745160064860746
;
Louzada Neto, Francisco
;
https://lattes.cnpq.br/0994050156415890
When a group of patients is monitored until a pre-established date for observation of the recurrence time of an event, it is possible that, at the end of the monitoring period, a parcel of such group has not yet suffered the event of interest. When that happens, even if the period is extended, there is evidence that an appropriate model for the theoretical survival function of the time until the event occurs would be one model able to bear this kind of data. This class of long duration models will be defined because the form presented by the nonparametric estimation of hazard function in this type of study indicates that the model should be flexible to allow such function to be increasing, decreasing, constant or U-shaped. In this report, we present the long duration modified Weibull model (LDMW) as a proposal to contemplate the issues in the medicine area. The LDMW model has a flexible hazard curve, which enables adjustment when the hazard is decreasing, increasing, U-shaped, unimodal, initially decreasing and posteriorly unimodal and constant. The report also particularizes models already known in the literature that contemplate long duration, such as the long duration Weibull (LDW), long duration Exponential (LDE) and short duration models, such as the modified Weibull (MW), Weibull and Exponential. The simulations showed that the odds of coverage reach the nominal probability of 95% for moderately to big sized samples, that the LDMW p model parameters estimation is costless when compared to the MW and that the selection criteria of the AIC and BIC models are not adequate to discriminate the LDMW model adjustment when compared to the LDW model adjustment for small or moderately sized samples. The LDMW model and its particular cases were adjusted into two sets of real data considering the Classic and Bayesian Inference. The first data set is about the time until the seroreversion of children born from HIV-positive mothers and the second data set is about the recurrence time of breast cancer in women.
Melhoria no desempenho organizacional de uma empresa de bens de capital usando o Balanced Scorecard: um estudo de caso
(Universidade Federal de São Carlos, 2011-12-07)
Marçola, Jadilson Astorino
;
Politano, Paulo Rogério
;
https://lattes.cnpq.br/8738368968765884
This paper aims to verify if there was improvement in the Performance Management of an organization that uses for more than five years a Performance Management System, denominated Balanced Scorecard. It's necessary to verify if the use of the Balanced Scorecard in this period of time, improved the management system of the organization, transforming the strategy into several operational execution processes. The development of this investigation was grounded in bibliographic references, to identify and evaluate the whole process of Strategy, Planning and Performance Measurement System, as well the involvement of all the stakeholders.
Domínios ferroelétricos em cerâmicas e materiais nanoestruturados: investigação por microscopia de piezoresposta
(Universidade Federal de São Carlos, 2011-12-07)
Bastos, Wagner Benício
;
Eiras, José Antônio
;
https://lattes.cnpq.br/6653223814715498
;
https://lattes.cnpq.br/0468842870942338
In this work, ferroelectric domain structure was investigated by Piezoresponse Force Microscopy (PFM). To this, an Atomic Force Microscope (AFM) has been modified to use it as PFM at room temperature and at high temperatures. Ferroelectric ceramics were used in the as bulk ceramic samples of Pb(Zr0,40Ti0,60)O3 (PZT 40/60) and (Pb0,79La0,21)TiO3 (PLT 21) produced by conventional methods. Nanostructured materials of Pb(Zr0,40Ti0,60)O3 (PZT 40/60) and Pb(Zr0,20Ti0,80)O3 (PZT 20/80) prepared respectively by sputtering and oxide precursors method were also studied. In a bulk ceramic PZT 40/60 was observed patterns of ferroelectric domain in twins configuration and built a three-dimensional model of its structure. The behavior of the polarization through the domain walls of 90o and 180o was investigated and widths of domains walls were estimated to be about 29 nm and 75 nm, respectively. In nanostructured samples PZT 40/60 and PZT 20/80, piezoelectric hysteresis remaining cycles, obtained by local measurements on different grains, shown a strong influence between the crystallographic orientation and the remanent polarization in each grain. Studies of polarization reorienting performed by ferroelectric lithography PFM revealed that the vertical component of the polarized material depends only on the vertical direction of the applied electric field, while the component parallel to the surface of the sample depends on the movement of the tip on its surface. This allows a procedure to control the orientation of these two components in the material. It was accompanied by images of PFM developments ferroelectric domains of ceramic PLT 21 (TC ~ 125oC) at high temperatures. The surface of the sample showed ferroelectric characteristics even at temperatures of 142°C. The results showed that the intensity of the polarization in the regions with a domain pattern decreases with increasing temperature.
Quantificação de resíduos de amoxicilina e ampicilina por injeção direta de amostras de leite de bovino
(Universidade Federal de São Carlos, 2011-12-07)
Moura, Franciane
;
Cass, Quezia Bezerra
;
https://lattes.cnpq.br/9197210255594409
;
https://lattes.cnpq.br/0973934556750225
The development of new methods for analysis and quantification of drugs and their metabolites in biological fluids is of great interest in various areas of knowledge. The pre-treatment of complex matrices is a fundamental step for the quantification of compounds in trace levels. Methods of direct injection of samples by 2D liquid chromatography systems have led to higher precision and accuracy, and quantification limits ever smaller. The use of RAM columns allows the exclusion of proteins and other macromolecules present in biological matrix and extraction of lower molecular weight analytes through hydrophobic, ionic or affinity interactions. In this work, a number of different RAM columns were evaluated with different materials adsorbed or bound on the silica surface (BSA, methylcellulose and - lactoglobulin). As well as, columns with different modes and mechanism of the analytes retention (C8, C18, SAX, SCX) were used. Using the technique of column coupling and a mass spectrometer as detector, ampicillin, was quantified, in bovine milk samples having a RAM-BSA column, in the first dimension coupled to an ACQUITY UPLC BEH column, in the second dimension. MRM mode with three specific transitions, 350> 106, 350> 160 and 350> 192 m/z, were monitored. The first, more intense, was used for quantification while the other two were used for confirmation. The developed method is simple, with analysis time of 14 minutes without any pretreatment of samples, except for centrifugation.
Fatores críticos da competitividade da cadeia produtiva do ovo no estado de São Paulo
(Universidade Federal de São Carlos, 2011-12-07)
Kakimoto, Sergio Kenji
;
Souza Filho, Hildo Meirelles de
;
https://lattes.cnpq.br/3750523102545273
Brazil is the second greatest world producer of eggs; the production value of the egg ranks 13th among the agricultural products in the country. The Brazilian export of eggs is still incipient, but, the production potential is great since there are positive points such the climate, space, input availability and technology. It was aimed through this work to report the functioning, to investigate the role of the several economic agents and identify the critical determinants of the competitiveness of the production chain of the egg in the state of São Paulo. The methodology utilized was done through the evaluation of the competitiveness drivers with the aid of questionnaires, ascribing values of very unfavorable, neutral, favorable and very favorable to a series of sub-factors. Seven competitiveness drivers of greatest impact in the sector were selected, namely: firm management, technology, inputs, market structure, chain governance, infrastructure and institutional setting. Out of these factors were ascribed sub-factors which were evaluated and advised the survey and the analysis of the results. By means of the rapid appraisal methodology were interviewed key-agents of the chain as well obtained data in secondary sources. The interviews were directed towards the agents of the production chain link and agents of the sectoral organization of the state of São Paulo. It follows that the drivers who contribute towards the competitiveness of the production chain of eggs were both technology and firm management which have the control degree by the firm while the others remain neutral, not contributing to competitiveness. The cost of inputs, mainly the corn and the freight value, were sub-factors unfavorable to the production chain.
Arautos do reino de Deus, militantes na terra: a atuação dos operários evangélicos no Sindicato dos Metalúrgicos de São Carlos e Ibaté
(Universidade Federal de São Carlos, 2011-12-08)
Oliveira, Daniele de Jesus
;
Lima, Jacob Carlos
;
https://lattes.cnpq.br/9244132532446607
;
https://lattes.cnpq.br/2308678123959760
This study is the result of a qualitative research about the involvement of Pentecostal workers in the Union of Metalworkers of San Carlos and Ibaté. From the religious affiliation and its guidelines is analyzed the trajectories of acquaintance and engagement with the militancy and the extent to which Christian values on the one hand and the demands of trade union struggle, others do not conflict. Among the workers interviewed, the majority showed affinity with union militancy, understanding the role of the Union is to ensure the rights of workers, hence the active participation in activities promoted by the entity. Such experiments allow us to think about the changes in behavior among evangelicals in relation to micro-and macro-social policy and its consequences. Meanwhile, religion acquires a relevant role in establishing a network of contact between them within the church and labor, leading them to become interested by the union due to the participation of some "fellow believers" militants. The result is a movement of exchange of experiences between two seemingly opposite areas on the basis of an ideological nature, but in our case has been overcoming this dichotomy between sacred world and the secular world.
A contribuição das universidades para as empresas que adotam o modelo de inovação aberta
(Universidade Federal de São Carlos, 2011-12-09)
Benedetti, Mauricio Henrique
;
Torkomian, Ana Lúcia Vitale
;
Última atualização do currículo em 10/06/2011
Estratégias operatórias dos inspetores de Huanglongbing (Greening) de uma propriedade citrícola no interior do Estado de São Paulo
(Universidade Federal de São Carlos, 2011-12-09)
Gonçalves, Glaucia Helena
;
Menegon, Nilton Luiz
;
https://lattes.cnpq.br/5461487552981919
;
https://lattes.cnpq.br/7599757471634675
This research aimed to study the activity of the HLB's scouts, workers whose function is to identify symptomatic plants, in order to understand the physical constraints, cognitive and organizational involved in accomplishing the task, characterizing the operative approach used to identify diseased plants, and to elucidate what aspects hinder the identification of symptoms. The method adopted for the research was the Ergonomic Analysis of Work EAW (Güérin et al., 2001). The results, after validation with the operators and management, allowed understanding the complex relationships between the physical, cognitive and organizational aspects present on activity. Major difficulties were observed mainly in relation to the disposal of the scouts on the platforms and in relation to working hours, at the beginning and end of the journey. Important findings have highlighted strategies, unknown by the organization, used by scouts to locate candidates‟ trees to the fine analysis of investigation of symptoms. In conclusion, the analysis enable to understand the constraints and find technical and organizational solutions to the survey work on citrus groves as well as it showed signs and symptoms not investigated yet or rarely considered by researchers involved on searches aimed at increasing the ability to diagnose the disease in the field.
Gestão do processo de desenvolvimento de produtos em clusters industriais: um survey no setor moveleiro da microrregião de Votuporanga-SP
(Universidade Federal de São Carlos, 2011-12-09)
Dias, Eliza Cristina
;
Oprime, Pedro Carlos
;
https://lattes.cnpq.br/9291517431456908
;
https://lattes.cnpq.br/8128853369850318
The Product Development Process (PDP) is a critical process because it is subject to innovation and competitive strategy of companies. The furniture industry of the micro-region of Votuporanga, consisting primarily of micro, small and medium sized companies is relatively new, and has a significant weight in the local economy, generating jobs and income. This research studies the PDP in the furniture sector of the micro-region of Votuporanga, placed in a cluster with the aim to identify the essential properties of this business process in order to establish its dynamic, technological and managerial vulnerabilities and strengths as well as the future prospects of the sector for meeting the challenges of competitiveness and innovation policy. From the scientific point of view, it draws a parallel between the theory and practice of product development in companies with limited manpower and financial resources. Thus, it considers the activity of the product development process in the context of the furniture industry as a study to attempt to confirm or refute hypotheses about the characteristics of PDP in small Brazilian companies. The descriptive and exploratory survey method was applied by a structured questionnaire with closed questions. The research instrument was developed and validated in a pilot study of ten companies. Statistical techniques were used to select the sample and analyze the data due to the large number of variables studied, so the statistical tools recommended and used were the descriptive and multivariate techniques. It was possible to confirm the weakness of the organizational structure of SMEs from the analysis and the constructs examined, wich generally adopt non-formal and imitative strategies with centralized administration based on owner s control. The success of the new product introductions depends on the tacit experience of those involved in product development.
Caracterização da dinâmica de integração interfuncional: um estudo multicaso em marketing e logística
(Universidade Federal de São Carlos, 2011-12-09)
Pimenta, Márcio Lopes
;
Silva, Andrea Lago da
;
https://lattes.cnpq.br/30269275813428
Marketing and Logistics have a high need for integration because they compose contact points that influence the synchrony of operations with market needs. The literature in this area predominantly focuses on the elements that generate integration, and the correlation of those elements with functional and organizational results. However, there is a theoretical gap related to the characterization of the inter-functional integration dynamics between Marketing and Logistics and the integration elements. This research aimed to characterize the interfunctional integration dynamics between Marketing and Logistics. The elements that compose the integration dynamics are identified and characterized. The key elements related to inter-functional integration dynamics that were identified in the literature include contact points, integration factors, integration level, formality/informality of integration processes, and integration impacts. In order to better characterize these elements, five case studies were conducted in manufacturing companies, from different industries: Chassis and Wheels, Agriculture Chemicals, Beverages, Soybean Oil and derivates, Oral Care Products. The indepth interviews considered both Marketing and Logistics perspectives. The analysis identified similarities and differences in the characteristics of the Marketing and Logistics inter-functional integration dynamics. Practical definitions were established for contact points, integration factors, integration levels, integration formality/informality, and impacts generated by integration. The investigation of these elements within organizations may facilitate integration efforts between Marketing and Logistics, reducing conflicts and improving the companies' performance.
Contribuições do entretenimento a bordo no conforto e desconforto em voos comerciais
(Universidade Federal de São Carlos, 2011-12-09)
Rossi, Talita Naiara
;
Menegon, Nilton Luiz
;
https://lattes.cnpq.br/5461487552981919
;
https://lattes.cnpq.br/4710211875870294
The growth of passengers air transport as well as the competitiveness of the aviation industry have made the comfort a noticeable item to be taken into account, which is characterized as a key variable for the cabin project and also for the differentiation in the market, once it is related to the passengers satisfaction and acceptance when it comes to this transportation modality. In this context, the in-flight entertainment has been considered one of the most relevant requisite in order to improve the comfort while in the cabin in a way that it enhances values of the airline companies, contributing for a more pleasant and also a rather positive air travel experience. Thereby the aim of this study is to understand the aspects of either comfort or discomfort in airplane cabins, exchanging views on the importance of entertainment activities on board as well as their influence on comfort and discomfort in the cabin. Firstly, based on the literature review it made possible to clearly understand the concepts of comfort and discomfort including the current possibilities of in-flight entertainment. Considering comfort as an outstanding and suitable point to be applied in the cabin, this study is grounded in the approach of the analysis of the activity. As such, the data collection was implemented in two contexts: survey of Brazilian commercial aviation (airports and domestic flights) and interviews with companies connected with the entertainment industry and air transport sector. The procedures adopted have permitted to identify the active travellers preferences and expectations when it comes to in-flight entertainment, what is more, the constraints during the activities occurred in the cabin and tendency of the industry in question. Some recommendations for the project were made, highlighting, mainly, the importance of the amenities in the aircraft cabin for the travelers to use their own devices during the flight.
Modelos e métodos de resolução para problemas integrados de dimensionamento de lotes de produção com decisões de distribuição e arranjo de carga
(Universidade Federal de São Carlos, 2011-12-09)
Silva, Flávio Molina da
;
Morabito Neto, Reinaldo
;
https://lattes.cnpq.br/6800618341237630
In this research, we study lot sizing problems with decisions on product distribution and, also, problems that integrate lot sizing decisions and product packing in the vehicles (bins). In general, these problems involve a trade-off among production costs, holding costs and distribution costs. The lot sizing problems consider limitations in the production capacity and demand delivery deadline. The distribution decisions are related to the product loading into the unit load device (pallets, containers or trucks). The packing problems may involve one, two or three dimensions relevant to the product loading. The problems are modeled by mathematical programming and solved by the branch-and-cut method of an optimization package, and then, the performance and the results obtained are analyzed. Furthermore, heuristic methods are specifically developed in order to provide an approximate solution for these problems. The heuristic methods are built according to the lagrangian relaxation and ant colony optimization. All the methods are tested and evaluated, regarding the solutions found by the optimization package for the proposed models.
Estudo do eletropolimento galvanostático de aço inoxidável AISI 304 utilizando soluções ácidas concentradas
(Universidade Federal de São Carlos, 2011-12-09)
Veroli, Alyne Bernardes
;
Bocchi, Nerilso
;
https://lattes.cnpq.br/5930614700886481
;
https://lattes.cnpq.br/8753770491945937
Stainless steel has been the subject of numerous studies due to technological and economic importance. Features such as durability, corrosion and high temperatures resistances confer to the steel relevant applications in several industrial sectors. Thus, the study of methodologies for chemical and electrochemical polishing, instead of mechanical polishing, has been increasing due to improved surface quality of these steels by not introducing contaminants and/or tension in the superficial layers of the metal, making them microscopically smooth, passive and anticorrosive. Therefore, in this work, the process of electrochemical polishing of AISI 304 stainless steel in solutions of concentrated sulfuric acid (H2SO4 also used in the coloring process of these steels) and phosphoric-sulfuric mixed acids (H3PO4 and H2SO4 2:1) containing glycerol was studied using the galvanostatic method (constant current). Factorial design was used to optimize the main process parameters such as concentration of the acid solution, current density, temperature, electrolysis time and additive content. The surface quality of steel samples was evaluated by spectral reflectance. Some steel samples electropolished or not (steel samples as received) were also characterized by atomic force microscopy (AFM) and scanning electron microscopy (SEM). The statistical model generated for the electropolishing process of steel in solution of H2SO4 did not fit well (R2 = 0.75) to the experimental results. Among all the electrolysis, the one that produced a steel surface with the highest percentage value of reflectance (R = 71%) was performed in the following experimental conditions: [H2SO4] = 9 mol L-1, i = 0.6 A cm-2, θ = 55 ° C and t = 7.5 min. In these conditions the corrosion rate of steel samples was 0.33 mm h-1 and the process energy consumption was 3.0 kW h m-2 for an average cell potential of 4.0 V. On the other hand, the statistical model generated for the electropolishing process of steel in solution of H3PO4 and H2SO4 2:1 containing glycerol fitted reasonable (R2 = 0.93) to the experimental results. The punctual optimal conditions were: H2SO4 and H3PO4 2:1 containing 25% glycerol and kept at 30 ° C, i = 1.0 A cm-2 and t = 8 min. In these conditions, the surfaces of the steel samples showed R values of 70 %. The corrosion rate of steel samples was 0.19 mm h-1 and the process energy consumption was 23 kW h m-2 for an average cell potential of 17 V. From AFM images, the calculated values of average surface roughness factor (Ra) were 139 ± 20 nm for steel samples as received (R = 58%) and between 20 and 75 nm for steel samples electropolished. The SEM images for these latter samples revealed the different crystallographic orientations of the AISI 304 austenitic stainless steel.
Sustentabilidade dos agroecossistemas com barragens subterrâneas no semiárido paraibano
(Universidade Federal de São Carlos, 2011-12-09)
Ferreira, Gizelia Barbosa
;
Costa, Manoel Baltasar Baptista da
;
https://lattes.cnpq.br/4748534388515487
;
https://lattes.cnpq.br/7084344642596820
The influence of subsurface dams in semi-arid agro-ecosystem sustainability must be studied from a systemic perspective to evaluate the dynamic sociopolitical, cultural, economic and environmental involving farmers as actors in the research. The farmers also perform the non-agricultural activities seeking to generate more income for the family, and thus enable social reproduction, economic and environmental, not taking away its rural identity. We used qualitative methods based on participation facilitated by the tools of methods Participatory Rural Appraisal - PRA and the Evaluating the sustainability of Integrated Peasantry Systems MESMIS Framework, in order to assess the sustainability of two properties with subsurface dams in semiarid region of Paraíba State, Brazil. It was found from the perception of families, the 01 Property, Family Santos, got a reasonable level of sustainability (3.1), from the average 3.4, 2.8, and 3.0 obtained for the dimensions environmental, social and economic, respectively. While 02 Property, Family Lira reached a good level, with overall mean 4.1, obtained through the medium, 4.1, 4.2 and 4.3, for environmental, social and economic, respectively. Quantitative indicators for the assessment of physical, chemical and biological soil proved to be efficient in comparison with subsurface dam environments (BS) under the conventional system and native, were observed higher levels of OM accumulation in the area of the BS and increased microbial activity in the native forest. The families participating in the study, although they are soon in the process of agroecological transition, progress toward a more sustainable agroecosystem, and the subsurface dam as a potential technology to improve and balance the ecological processes of the production system of family farming semiarid.
Arte na metrópole: um estudo sobre o graffiti na cidade de São Paulo
(Universidade Federal de São Carlos, 2011-12-10)
Silva, Cynthia Rafael da
;
Lana, Rita de Cássia
;
https://lattes.cnpq.br/1816504631940006
;
https://lattes.cnpq.br/7900198540781524
The objective of this work is to present the evolution of graffiti in the city of São Paulo as a form of expression of contemporary urban art, also endowed with institutional value. Analyzing the scenery of the metropolises and the emergence of this manifestation as a conceptual street art, we seek to value graffiti as a constituent element of the cultural and potentially tourist heritage of São Paulo, closely linked to the urban landscape of the city.
Aspectos éticos em dissertações e teses do PPGE/UFSCar à luz da resolução CNS 196/96
(Universidade Federal de São Carlos, 2011-12-12)
Siquelli, Sônia Aparecida
;
Hayashi, Maria Cristina Piumbato Innocentini
;
https://lattes.cnpq.br/7785849794300988
This doctoral thesis has been developed in order to identify the ethical aspects of research in education, considering the 196/96 National Health referred to the guidelines and standards regulated research involving humans. To make it possible to perform this task and establish the theoretical research we used the reflection on the concept of ethics and ethics in life science research. The methodological approach was based on bibliometrics that were used to analyze the scientific production of 73 theses and dissertations in the Graduate Program in Education (PPGE) of the Federal University of São Carlos (UFSCar), between January 2009 and December 2010. This historical period was chosen because of the concern in describe and discuss the ethical aspects of research produced in the first decade of this century, and questionnaires, with a former student and three teachers linked to the Program. The results of bibliometric analysis allowed to verify that participants were 2606 of these dissertations and theses and that 74% of the studies analyzed (21 theses and dissertations 33) were not submitted to the Ethics Committee. Analysis of the questionnaires revealed that participants are aware of the demands of ethical commitment in conducting research, but in different degrees of depth, particularly with respect to the contents of Resolution CNS 196/96. Participants also agreed on the need for further clarification on the ethics of research to graduate students, and emphasized that the bureaucratic aspects surrounding the submission of research to the Research Ethics Committees, often away from the researchers. Finally, it was observed that the participants consider that studies performed in this field of knowledge does not pose risks to the participants surveyed, which points to the importance of building a culture of bioethics needed for academic and professional researchers in education, because all intervention research entails risk to the participant, and for small or rare they are, must be provided.
Arquitetura de um provedor de serviços interativos para sistemas de televisão digital
(Universidade Federal de São Carlos, 2011-12-12)
Prado, Gabriel Massote
;
Zorzo, Sérgio Donizetti
;
https://lattes.cnpq.br/2523715806470871
;
https://lattes.cnpq.br/4475440779573486
The evolution of television systems, analog to digital, provides a wide range of new services possibility of data transmission from the high quality audio and video. With the aggregation of data transmission of television programs, systems arise Interactive Digital TV allows you to embed interactive content resulting in a new way to produce and transmit television programs. This paper presents an architecture of an Interactive Service Provider named Interactive Service Provider for Digital Television Systems - ispTV - to interactive digital television systems, based on a service-oriented architecture that enables the publication and delivery of services in different technologies such as JAX-WS, Axis2 and ispTV services, with the inclusion of an abstract layer of communication in order to simplify the development of interactive programs with a standardized communication APIs provided by the architecture. The Brazilian Digital Television System is to provide an objective of social, cultural and technological inclusion through broadcasting educational, government and commercial television applications for the television user programs. In this context, this paper presents some interactive applications with educational support to viewers with special needs using the proposed architecture. The applications presented demonstrate the usability aspects of the architecture along ispTV to test usability of the APIs of abstraction that the architecture offers. Also presented are performance testing and scalability of the architecture, showing that its operation allows its use for the transmission of interactive applications for various classes of projects, institutions and companies.
Análises estruturais e evolutivas de uma região do gene COI do DNAmt de espécies de moscas saprófagas da família sarcophagidae e perspectivas para identificação taxonômica.
(Universidade Federal de São Carlos, 2011-12-12)
Rodrigues, Eduardo Leal
;
Lessinger, Ana Cláudia
;
https://lattes.cnpq.br/4643624035602601
;
https://lattes.cnpq.br/8687940253796291
;
Infante-malachias, Maria Elena
The taxonomic classification system of all organisms has been traditionally based in the comparative analysis of a wide range of morphological structures. In the last decades, the potential of physiological, cellular and molecular characteristics have been recognized in taxonomy, including phylogenetic and biogeographic aspects. This study focuses on the structural and evolutionary characterization of a region encompassing the 3 end of the mtDNA gene COI from sarcophagids and analyzed the contribution of this information for species identification, increasing the knowledge related to this family in the neotropical region. The Sarcophagidae family has approximately 2,600 species and their phylogenetic relationships are not well established for most genera and sub-genera. In this scenario, the characterization of nucleotide sequences for species identification in Sarcophagidae is a strategic approach that contributes for inferring phylogenetic relationships in this family. In this study, a 470 bp region from the COI gene was sequenced and characterized by structural and evolutionary analyses for five species: Peckia anguilla, Peckia collusor, Peckia ingens, Oxysarcodexia admixta e Oxysarcodexia paulistanensis. For comparative analyses we included ortholog sequences from three other sarcophagid species (P. intermutans, O. ventricosa e S. carnaria) and from the species C. hominivorax (Calliphoridae) e Haematobia irritans (Muscidae) available in GenBank. The intraspecific variation showed values between 0 e 0,01 and the interspecific variation varied from 0,07 - 0,151. Similarly to other Diptera families, the nucleotide composition of this region showed a high content of A and T (on average: A = 30.2%; T = 38.7%; C = 17.3% and G = 13.8%). The aminoacid composition presents higher abundance of Leucine, Phenylalanine and Tyrosine. Only eight divergent aminoacid positions were identified in comparative analysis of sarcophagid species, in addition to 3 positions that diverges from the insect COI protein structural model. Neighbor-joining analysis using Kimura-2P, an usual procedure in DNA barcodes analysis, distributed all species in monophyletic clusters, however the utility of this approach for resolving taxonomical conflicts requires additional sampling of specimens/species including a wide geographical coverage in order to provide a better characterization of intraspecific variation in these species.
Refatoração com enfoque em portabilidade como estratégia de reúso em desenvolvimento de middleware para TV digital interativa
(Universidade Federal de São Carlos, 2011-12-12)
Sardinha, Eduardo Drumond
;
Teixeira, Cesar Augusto Camillo
;
https://lattes.cnpq.br/1123376648713853
;
https://lattes.cnpq.br/8316322963999998
Middleware for interactive digital TV systems are designed to provide convenient abstractions to overcome differences of hardware/software in order to improve the portability of applications. The development of a middleware implementation from scratch is a complex and costly task. To minimize this effort, software assets of existing implementations of these middleware can be reused through software reuse techniques. A refactoring process can be applied to existing middleware implementations to improve some software requirements such as modularity and reusability, in order to facilitate reuse of the middleware. This work presents an approach of refactoring focused on portability as a reuse strategy for the development of new instances of a digital TV middleware for new hardware platforms. The proposed approach is based on software portability concepts and construction characteristics of digital TV middleware. To evaluate the work, we present a case study with our experience of refactoring an implementation of the Brazilian digital TV system s middleware.
Lutas na cidade de São Paulo: Mutirão Recanto da Felicidade e Banco Comunitário União Sampaio
(Universidade Federal de São Carlos, 2011-12-13)
Bergamin, Marta de Aguiar
;
Rizek, Cibele Saliba
;
https://lattes.cnpq.br/9596300416464737
The present work is aimed at exploiting the relationship between city and work, from the study of two democratic experiences: a self-managed joint effort (mutirão) and a community bank in the city of Sao Paulo. These two experiences show us that the social movements constantly need new ways of carrying out their actions in order to renew participation and strengthen the social organization towards the creation of a political community. Both the community bank, that broadens the range of the discussion on the endogenous circulation of money and on the possibility of higher consumption in the area, and the self-managed joint effort (mutirão), which intensifies the access to rights and to participation, are, however, experiences that struggle with huge difficulties and are perhaps weak as alternatives to the capitalist processes of sociability. In spite of that, they show themselves to be, in the very core of the system, capable of transforming previously precarious realities.