Browsing by Issue Date, starting with "2008-05-21"

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GRENJ: um framework obtido por um processo iterativo de reengenharia aplicando TDD
(Universidade Federal de São Carlos, 2008-05-21)
Durelli, Vinícius Humberto Serapilha
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Penteado, Rosângela Aparecida Dellosso
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https://lattes.cnpq.br/4061946080136286
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https://lattes.cnpq.br/8816910024419957
Software systems must satisfy the users requeriments and use current technologies. Thus, these systems are in constant evolution and several software maintenance tasks are carried out in order to adapt them to the user s requirements as well as to the current technologies. When there is a change in the technology used by these systems, an approach to their revitalization is reengineering, which is classified as a preventive maintenance. This research project presents the iterative process applied during the reengineering of the GREN framework, which is built based on the GRN pattern language. The GREN framework was originally implemented in Smalltalk, a very spread programming language, mainly within the academic community. In the proposed reengineering process the JavaTMlanguage and AspectJ, which is an aspect-oriented JavaTMextension, were used during the framework implementation resulting from the reengineering process. This new framework is called GRENJ. The proposed process can be used to reengineer systems developed with OO paradigm, in order to change its implementation language to another OO language. That process is iterative, incremental, and applies reverse engineering patterns, test-driven development and refactoring. The GRENJ framework has approximately twenty-eight thousand source code lines, of which approximately ten thousand are related to tests created during the development. The GRENJ framework documentation was generated using the javadoc tool. A hypothetical system that satisfies the basics requirements of a rental video store was instantiated using the GRENJ framework.
Avaliação do modelo de transtorno de estresse póstraumático (TEPT) e camundongos machos : efeitos do midazolam, sertralina e ausência de efeito da imipramina
(Universidade Federal de São Carlos, 2008-05-21)
Costa, Fernando de Souza Melo
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Souza, Azair Liane Matos do Canto de
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https://lattes.cnpq.br/2352004564367849
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https://lattes.cnpq.br/2982118089291826
The post-traumatic stress disorder (PTSD) affects a portion of subjects exposed to a traumatic event. This disorder leads to long-term alterations in the hypothalamus-pituitaryadrenal (HPA) axis, autonomic and cognitive function. The aim of our study was to evaluate whether the animal model of PTSD proposed for rats could be used in mice and, to evaluate the effect of benzodiazepine, tricycle antidepressant and selective serotonin reuptake inhibitor drugs in the PTSD model. For this we realized the following experiments: Experiment 1- The test consisted of exposure the male mice to inescapable electric footshock (0.3 mA) in the black side (BS) of the black-white box (BW). In the 7th, 14th and 21th day, mice were reexposed to the traumatic reminder on the white side (WS) or BS for 2 min, without footshock. In the 29th day, the animals were submitted to elevated plus-maze (EPM) for record the anxiety indexes [percentage of open arm entries (%OA) and percentage of open arm time (%OT) and as well as general locomotor activity, closed arm entries (CE)]. On day 34 the same animals were submitted to BW test for record the latency to escape (LE) from WS and time spent on WS of the BW box. Experiment 2 the same procedure of experiment 1 was performed, except that the animals were re-exposed at 7th, 14th e 21th days to reminder situation only in WS of BW box for 2 min, without footshock. On day 29th, the animals were exposed to EPM, 30 min after receiving treatment with midazolam. In 34th day the same animals after receiving treatment with midazolam were submitted to BW box test. Experiment 3, 4 and 5 - the same procedure was adopted from experiment 2, except that in 29th day, the animals were not submitted to EPM test and on 34th day 30 minutes after treatment with midazolam, imipramine and sertraline were submitted to BW box. Two-way ANOVA (stimulus x place remainder or treatment) followed by Duncan test showed that PTSD model increased anxiety in mice (P<0.05). The re-exposure in BS promoted anxiogenic-like effect extinction of the model. The midazolam treatment (1.0 and 2.0 mg/kg, i.p.) produced anxiolytic-like effect in maze-mice (P < 0.05) and the 0.5 mg/kg decreased latency to escape of WS (P < 0.05) of BW box and increased the exploratory activity, suggesting involvement of this GABA-benzodiazepine agonist on this PTSD modulation. The EPM test does not interfere in the evaluation of the BW test. It is important to note that no other behaviors were significantly altered by imipramine per se (P < 0.05). The sertraline (5.0 mg/kg), selective serotonin reuptake inhibitor, produced anxiolytic-like effect in the BW test (P < 0.05) and increase exploration activity. These results suggest that the employed PTSD model to study neurobiological disturbances associated with this disorder.
Quantificação de metacrilatos residuais e avaliação da liberação em saliva artificial a partir de resinas acrílicas para reembasamento imediato
(Universidade Federal de São Carlos, 2008-05-21)
Almeida, Fernando Gonçalves de
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Cass, Quezia Bezerra
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https://lattes.cnpq.br/9197210255594409
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https://lattes.cnpq.br/9535882123333210
This work reports the development of analytical methods, using High Performance of Liquid Chromatography (HPLC), to quantify unreacted monomers from dental reline autopolimerizing acrylic resins. The quantification of these unreacted methacrylates is directly related with theirs toxicity, once that these may not only be irritant to the mucosa, but may also cause allergic and inflammatory reactions. In addition to this, high concentrations of unreacted monomers may cause alterations in physical and mechanical properties. For this purpose, three experimental resins (RE1, RE2 and RE3) and a commercial resin, Tokuyama Rebase Fast II (TKY), were selected to be analyzed. The development of these experimental resins has been carried out in cooperation with Faculty of Dentistry, Araraquara (FOAr - Unesp) and the dental corporation VIPI Ltda (Pirassununga, SP). The relevance of development these new resins is related to the necessity to have a national confectioned resin, because all resins used for these treatments are imported and reducing the cost of treatment. For quantification of unreacted monomers was necessary to extract them from the resins, so the extraction procedure was carried out in an ice-bath using methanol as extraction solvent. This procedure was validated through extractions in replicates. The monomers quantified were acetoacetoxy ethyl methacrylate (AAEM) from TKY resin, ethylene glycol dimethacrylate (EDMA), buthanediol dimethacrylate (BDMA) and cyclo hexyl metharylate (CHMA) all from experimental resins. Higher concentrations were found for experimental resins which the unreacted monomers concentrations range were, approximately 120μg/mL to 500μg/mL, 150μg/mL to 500μg/mL and 100 to 300μg/mL for resins RE3, RE1 e RE2, respectively Only for TKY resin was carried out a procedure to evaluate the quantity of unreacted monomer leached out in vitro in artificial saliva. There were found concentration in the range from 5.00 to 64.0μg/mL, in view of that the higher concentrations were leached from resin in the first 24 hours and after one week of artificial saliva immersion it was not observed the leaching of AAEM monomer.
Vivendo a terceira idade em Vitória da Conquista : um estudo de caso acerca do impacto do programa da terceira idade da prefeitura municipal de Vitória da Conquista
(Universidade Federal de São Carlos, 2008-05-21)
Lima, Gabriel Azevedo Costa
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Mancuso, Maria Inês Rauter
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https://lattes.cnpq.br/9062169693386815
This research is about a case study assigned with old people from Vitória da Conquista, Bahia. These people participate in a program called Vivendo a Terceira Idade. This program belongs to Social Development Secretary from the Prefeitura Municipal de Vitória da Conquista and it was founded in 1997. Until the observation period which was occurred on the first semester in 2006, there were about four hundred old people participating in the program. The great part of these people came from popular districts and they were poor people. In living together groups, people participate by educative and leisure activities. These groups are situated in eight districts from the city and their meetings happen in their own districts or in the program space. The mainly objective by this research is understand what is the program influence in old people who participate. To make this work, the researcher chose inactive old people, who receive some periodic money from social security politics, like: retirement, pension, etc. This study was based in Pierre Bourdieu Sociology and our observation was about the familiar experiences from the old people in the program activities. Our discussion started from the facts raised by the participating observation, by the interviews, by the questionnaires and by the appreciation of the program documents. Besides, it was based in five analysis categories: gender, work, family, citizenship and resignifying. Through the adopted methodology, according to the theoretical referential, we tried to show how old people who participate in an Elderly program resignify their life references about identity and acquired social behavior. In general, this analysis suggest that old people pass to true reviewing life processes starting from the question about the values and the building of new priorities to drive their lives. This new reality redesigns the identities and provides changes in the center of the old people relationships with their families and with the society.
Influência do método de preparação e performance catalítica para os catalisadores de Pd-La2O3-Al2O3 aplicados na reforma autotérmica do metano
(Universidade Federal de São Carlos, 2008-05-21)
França, Alexandre Bôscaro
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Bueno, José Maria Corrêa
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https://lattes.cnpq.br/0157452280626031
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https://lattes.cnpq.br/4539473355526849
Pd catalysts supported on Al2O3 and La2O3-Al2O3 (12 wt.% La2O3) were prepared by wetness impregnation method with aqueous solution of of palladium nitrate (1 wt.% Pd). The supports were obtained by conventional method (PdAl-Conv. and PdLaAl-Conv.) and two different sol-gel methods with Al-sec-butoxide/HNO3/Ethanol (PdAl-SG-Et. and PdLaAl-SG-Et) and Al-sec-butoxide/CH3COOH/sec-butanol (PdAl- SG-2But. and PdLaAl-SG-2But.). The catalysts were characterized by X-ray diffraction (XRD), BET surface area of catalysts were calculated from nitrogen absorption isotherm (SBET), FTIR-CO adsorption spectroscopy and autothermal reforming of methane (ATRM). XRD of precursors shows diffraction lines of boehmit for -SGEt. sample and shows diffraction lines of aluminum acetate for -SG-2But sample. No peaks of Pd or PdO were reveled in all catalysts samples. SBET for PdAl-SG-Et, PdLaAl- SG-Et and PdAl-SG-2But.catalysts shows type IV adsorption isotherm and H1 hysteresis and for PdLaAl-SG-2But catalyst shows type III adsorption isotherm and H3 hysteresis. FTIR-CO show that the adding of lanthana on γ-Al2O3 suppress CO adsorption in bridge form over Pd. The CO adsorption form is insensitive to presence of lanthana in catalysts obtained by sol-gel method. The intensity of bands of CO in bridge (LF) and linear (HF) show a LF/HF ratio of 4.8 to 2.3 for PdAl-Conv. and PdLaAl- Conv catalysts, respectively. The Pd catalysts supported on Al2O3 show higher deactivation with time on stream on ATRM reaction, which is assigned mainly to coalescence of Pd particle. La-containing catalysts are quite stable and H2/CO ratio depends to the synthesis method.
Identificando dificuldades e benefícios do uso do PSP apoiado por ferramentas de 3ª. geração
(Universidade Federal de São Carlos, 2008-05-22)
Montebelo, Renan Polo
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Fabbri, Sandra Camargo Pinto Ferraz
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https://lattes.cnpq.br/2204086299921323
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https://lattes.cnpq.br/8516218359157043
Background: The Personal Software ProcessTM (PSP) is a methodology that can be used by software developers to improve the predictability, the productivity and the quality of their personal work. However, the great number of activities and metrics involved in the PSP makes its application very laborious and difficult. Several PSP supporting tools have been proposed in order to make its application more feasible, and such tools evolved as more experiments were conducted with the PSP. There are now three generations of PSP supporting tools, whereas third generation supporting tools are characterized by being able to collect and analyze Software Engineering metrics automatically and unobtrusively. Objective: This study s objective is to determine the difficulties and benefits of using third generation tools to support the PSP application. Method: The GQM paradigm was used to set up two Case Studies, one being in the academic environment with undergraduate students and another in a small software development company. Both case studies featured the PSP application supported by third generation tools. Results: Results show that third generation supporting tools have some advantages over previous generations tools, especially in the coding phase. However, third generation tools have limited PSP activities support and introduce new adoption problems. Conclusion: For a successful long-term PSP application, it is necessary that the supporting tools are completely adapted and integrated in the developers work environment, with both second and third generations tools characteristics.
ADeSCoU: uma abordagem para o desenvolvimento de software para computação ubíqua
(Universidade Federal de São Carlos, 2008-05-26)
Santana, Luiz Henrique Zambom
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Prado, Antonio Francisco do
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https://lattes.cnpq.br/2668568143800755
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https://lattes.cnpq.br/8021802849008112
This dissertation presents an approach to the software development in the Ubiquitous Computing, which instantiates the Rational Unified Process (RUP), based on Ontologies, Semantic Web Services, and Software Agents. Ontologies are employed to improve the description of the use context, enabling the applications to be context-aware. Semantic Web Services are used as software components distributed over the Internet, and are composed to perform complex tasks. Software Agents manages the applications using the Ontologies and the Semantic Web Services. A framework, called UBICK, was built to facilitate the design and the implementation of ubiquitous applications, based on components reuse. A case study illustrates the use of this approach in order to develop an Electronic Reflexive Portfolio in the medical education domain.
Gerenciamento de anotações de biosseqüências utilizando associações entre ontologias e esquemas XML
(Universidade Federal de São Carlos, 2008-05-26)
Teixeira, Marcus Vinícius Carneiro
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Ciferri, Ricardo Rodrigues
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https://lattes.cnpq.br/8382221522817502
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https://lattes.cnpq.br/4382033348580377
Bioinformatics aims at providing computational tools to the development of genome researches. Among those tools are the annotations systems and the Database Management Systems (DBMS) that, associated to ontologies, allow the formalization of both domain conceptual and the data scheme. The data yielded by genome researches are often textual and with no regular structures and also requires scheme evolution. Due to these aspects, semi-structured DBMS might offer great potential to manipulate those data. Thus, this work presents architecture for biosequence annotation based on XML databases. Considering this architecture, a special attention was given to the database design and also to the manual annotation task performed by researchers. Hence, this architecture presents an interface that uses an ontology-driven model for XML schemas modeling and generation, and also a manual annotation interface prototype that uses molecular biology domain ontologies, such as Gene Ontology and Sequence Ontology. These interfaces were proven by Bioinformatics and Database experienced users, who answered questionnaires to evaluate them. The answers presented good assessments to issues like utility and speeding up the database design. The proposed architecture aims at extending and improving the Bio-TIM, an annotation system developed by the Database Group from the Computer Science Department of the Federal University from São Carlos (UFSCar).
Aprendizado semi-supervisionado e não supervisionado para análise de dados de expressão gênica
(Universidade Federal de São Carlos, 2008-05-27)
Assao, Fabiana Mari
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Camargo, Heloisa de Arruda
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https://lattes.cnpq.br/0487231065057783
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https://lattes.cnpq.br/3998840368387781
Data clustering has been seen, in the last decades, as an important tool for gene expression data analysis. In recent years, due to the progress in gene annotation research, a growing interest has been noticed for the semi-supervised clustering techniques, which use knowledge previously available about some gene functions to discover functions of other genes by means of clustering. This work investigates non-supervised and semi-supervised clustering algorithms applied to gene expression data. The goal is to perform an inspection on strengths and weaknesses of the use of such clustering methods and, based on these findings, to provide ways of obtaining results significant to biology. Algorithms with different characteristics were implemented and tested, with the objective of verifying evidences of eventual gains with the partial labeling, as compared to the non-supervised techniques. The experiments considered data sets from the gene expression domain as well as more generic domains. The obtained results were evaluated with validation measures usually applied in similar contexts. The analysis developed, though, emphasize the important role of computational techniques in biological data analysis, by accelerating the process of deriving results and conclusions, to better understand gene functions and structures. The results of this stydy justify the large investiment in the research of behavior of semi-supervised techniques in gene expression data, as we shall see.
Estudo de propriedades de filmes de óxidos anódicos crescidos em diferentes eletrólitos ácidos sobre o biomaterial Ti-50Zr at.%
(Universidade Federal de São Carlos, 2008-05-27)
Ferreira, Elivelton Alves
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Rocha Filho, Romeu Cardozo
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https://lattes.cnpq.br/5200717413563550
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https://lattes.cnpq.br/9791486511562981
Studies on the influence of the nature of the growth electrolyte on the properties of oxide films grown on the Ti-50Zr at.% alloy were carried out. The results obtained through the different measurements done (chronoamperometry, open circuit potentials, and reconstruction rates) showed that phosphate incorporation into the matrix of oxide films grown in H3PO4 make them unstable, bringing a greater dissolution compared to the ones grown in CH3SO3H, H2SO4, and HNO3. The electrochemical impedance spectroscopy measurements showed that the phosphate incorporation into the oxide films grown on the Ti-50Zr at.% alloy by different methods and thickenesses lead to high values of electrical resistance when compared with the ones of films grown in CH3SO3H, H2SO4, and HNO3. The nature of the growth electrolyte was observed to also affect the semiconducting properties of the different oxide films grown on the alloy, leading to different voltammetric profiles of these films when illuminated with radiation of energy greater than that of the band gap. The studies on the effect of the exchange of the electrolyte solution in the galvanostatic growth of anodic films in two steps showed that the breakdown potentials are dependent on the nature of the electrolyte. On the other hand, these measurements also revealed that the initial electrical breakdown of the film or the nature of the electrolyte in which it was initially grown do not alter the film growth kinetics during the second step, carried out in another electrolyte.
Web-semp: método de elicitação, modelagem e planejamento para aplicações web
(Universidade Federal de São Carlos, 2008-05-28)
Zaniro, Dênis Leonardo
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Fabbri, Sandra Camargo Pinto Ferraz
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https://lattes.cnpq.br/2204086299921323
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https://lattes.cnpq.br/0800017967297543
Web applications differ from traditional applications in several significant ways, affecting the Requirements Engineering for Web (WebRE). The most WebRE methods proposed in the scientific literature are used in isolation and don t merge some of all practices and principles of Software Engineering. Besides, there aren t guidelines to tie up requirements specifications with conceptual design models and, at the same time, to support the construction of expressive models in such a way that they allow the metric application in the planning phase. Goal: based on this context, the goal of this work was to define a method, named Web-SEMP Web System Elicitation, Modeling and Planning proposed to help the elicitation, modeling and planning activities for Web applications. The proposed method defines both an approach to elaborate a conceptual model based on requirements, and a metric, named WHP Web Hypermedia Points to evaluate the size of Web applications. Method: the most quoted methods in the literature were analyzed aiming to reuse and to extend them to compose the method here proposed. From literature, the proposed method adopts both the AWARE and WebML techniques for elicitation and modeling activities, respectively, and the Use Case Points method for planning activity. Results: The Web- SEMP method was applied in the real development of a Web application and the results give insights of its contribution to conduct the WebRE process in a more systematic way. In order to evaluate the effectiveness of the WHP metric, it was applied in some implemented Web sites and the obtained results reflected, in proportional terms, the hours spent to develop them. Conclusions: According to the results, it could be observed that the Web-SEMP method enables to improve the quality of WebRE, and the WHP metric represents a first step towards more precise effort and cost estimation models.
Modelo de controle de acesso adaptativo
(Universidade Federal de São Carlos, 2008-05-30)
Cereda, Paulo Roberto Massa
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Zorzo, Sérgio Donizetti
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https://lattes.cnpq.br/2523715806470871
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https://lattes.cnpq.br/9779052569284359
Privacy has become an important aspect when modeling computational systems that have personal information and actions that deal with them. Control access models are used to provide security of such information. Some of these models, altough, are just applied to specific domains. It is proposed an access control model simple yet generic enough to comply with the security and privacy aspects of a system. The proposed model uses an adaptive automaton to perform the access control, and has a set of privacy commands, coded from a legislation or policy. These commands verify if a certain action in the systen may be characterized as a privacy violation. Moreover, the model may be used with auditing mechanisms to register actions in the system and guarantee the privacy.
Desenvolvimento e caracterização de blendas PHBV/Ecoflex® e suas modificações com amidos
(Universidade Federal de São Carlos, 2008-05-30)
Pellicano, Marilia
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Agnelli, José Augusto Marcondes
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https://lattes.cnpq.br/7592090152400440
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https://lattes.cnpq.br/2276555632135378
Plastics materials produced from petrochemicals are widely used due to their versatility, mechanical properties and low cost, but they cause environmental impact as a consequence of the accumulation of great amount of these conventional synthetic polymers. The problems caused by the waste disposal of these petrochemicals plastics impel the development, production and application of biodegradable polymers, however these polymers have high costs and nonsuitable mechanical and physical properties. Therefore, a study of polymeric blends and systems made of poly(hydroxyburyrate-co-valerate) PHBV, poly(butylyneadiapate-therefhtalate) Ecoflex® and corn starch, waxy corn starch and manioc starch has been done. These polymeric blends and systems were evaluated using the Melt Flow Index (MFI), Differential Scanning Calorimetry (DSC), Thermogravimetry (TG), Heat Deflection Temperature (HDT), Mechanical Tensile and Impact tests, Scanning Electron Microscopy (SEM) and biodegradation test. The results obtained indicate transesterification reactions verified by DSC and TGA, lack of adhesion between corn starch and PHBV as indicate by mechanical tests and SEM, disagreement between the values obtained in this study and the values indicated by the manufacturer concern to the Ecoflex® and good biodegradation results. This study therefore indicates that it is possible to obtain materials viable for short-term applications, with adequate physical and mechanical properties and biodegradation.
Associação de bactérias à cápsula de Anabaena spiroides (Cyanobacteria) em cultura
(Universidade Federal de São Carlos, 2008-05-30)
Bagatini, Inessa Lacativa
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Vieira, Armando Augusto Henriques
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https://lattes.cnpq.br/4428377384377272
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https://lattes.cnpq.br/3904631503604006
The cyanobacterium Anabaena spiroides, a cosmopolitan species occurring in eutrophic environments as in Barra Bonita reservoir, is covered by a thick polysaccharide capsule that provides a microenvironment for association of bacterial communities. The aims of this study were: to identify bacteria attached to A. spiroides capsule to evaluate interspecific relationships among bacteria communities and A. spiroides, considering bacteria selectivity and succession dynamics of attached bacteria; as well as the effect of bacterial inoculum (1.2 µm filtered water from Barra Bonita reservoir) on cyanobacterial growth. For this purpose, density, production, biomass and diversity of bacteria attached to cyanobacteria capsules and free-living bacteria were determined in two replicate cultures of A. spiroides inoculated with bacteria from Barra Bonita reservoir. The diversity was verified by the number of bands obtained through separation of PCR amplification products of 16S rDNA from free-living and attached bacterial communities using Denaturing Gradient Gel Electrophoresis (DGGE). Bacteria attached to the capsule were identified by sequencing the fragment of 16S rDNA. A set of cultures were performed to evaluate cyanobacterial growth as affected by Barra Bonita filtered water. A. spiroides cultures without Barra Bonita inoculum were used as control. The results showed that bacterial density, biomass and total production were higher for free-living bacteria, but no significant difference was obtained between attached and free-living bacteria regarding production per cell. The diversity was lower for the attached bacteria than free-living ones. Three strains of attached bacteria present in A. spiroides inoculum, identified as one Acidobacteria and two Alphaproteobacteria, remained up to the beginning of exponential growth phase. At the senescence phase these bacteria were replaced by four strains identified as one Deltaproteobacteria, one Betaproteobacteria, one Bacilli (Firmicutes) and one unidentified strain. This research demonstrated that there were selectivity and succession in the bacterial community attached to A. spiroides, and that the addition of the filtered water from Barra Bonita inoculum accelerates the death of cyanobacterium cultures
Eficácia de um programa de comunicação alternativa aplicado a grupos de escolares com deficiência intelectual
(Universidade Federal de São Carlos, 2008-05-30)
Lima, Cândice da Silva e
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Almeida, Maria Amélia
The capability to use the language is essential for the acquisition of the symbolic systems and to improve the interpersonal relationships; his/her full development depends on the cognitive abilities and social adaptative skills. When an implication happens in this natural course, it is common to appear alterations in the communicative process. The speech pathologist s intervention in group, when using Augmentative and Alternative Communication as an intervention procedure, makes possible the complete use of the social interactions in the development of the language abilities. The objective of the present study was to plan, to apply and to evaluate an intervention program about Augmentative and Alternative Communication in a group inserted on a naturalistic model in one Special Education School. The ten students who participated in the research had a diagnosis of intellectual disabilities. Three of them were the target subjects. In order to be the target, they had to be non verbal. In the group of seven children there were some who were verbal and others nonverbal ones. All of the ten participants were capable to accomplish voluntary motor actions and they did not participate in other intervention group that used Augmentative and Alternative Communication. The chronological age of the group varied between 6 and 14 years old. To verify the effects of the intervention Program on Augmentative and Alternative Communication in the participants communicative behavior, a Multiple Baseline design across subjects was used. The sub-test Pragmatic from Test of Infantile Language ABFW and the Test of Receptive and Expressive Language were also used. The Results demonstrated that during the Baseline, none of the participants obtained success in relation to the use of the communication pictures. However, when the intervention process was started, the children presented increase in the use of pictures as an alternative to communicate their needs. At the end of the data collection all children were able to use the picture exchanging program. The Pre and Post results related to the Pragmatics Evaluation revealed that all the participants from each group improved their communicative abilities. It is important to emphasize that some of them improved their verbal behaviors and the ones who did not have conditions to improve their oral communication, started to use the pictures to communicate their needs associated with gestures and vocalizations. The application of Pre and Post Test on Receptive and Expressive Language Test, evidenced changes when the expressive language is analyzed. Some participants acquired abilities related to language verbal expression, even thought this was not the study main focus. We concluded that when the System of Augmentative and Alternative Communication was employed, the development of the communicative abilities occurred, improving the participants' communication performance during the interactions. Therefore, it is evident the importance of the speech pathologist s intervention in group situations and the use of the Communicative Alternative and Augmentative Systems to develop communication skills in children with intellectual disabilities.
Integração de dados baseada em ontologia
(Universidade Federal de São Carlos, 2008-05-30)
Afonso, Gustavo Ferreira
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Santos, Marilde Terezinha Prado
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https://lattes.cnpq.br/9826026025118073
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Biajiz, Mauro
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https://lattes.cnpq.br/8331600770992494
The study on data integration is not new but neither is exhausted. Its need is increasingly clear due to the search for information in a general environment with increasing availability of data proceeding from distributed and heterogeneous sources. An approach used successfully, especially to solve the problems of heterogeneity of sources, is the use of ontology, as the basis for the data integration systems. In order to employ this concept, this work describes the development of a data integration system based on ontology, DISFOQuE, which has its use as a motivation in the field of watersheds analysis.
Aplicando senso comum na edição de objetos de aprendizagem
(Universidade Federal de São Carlos, 2008-05-31)
Carlos, Alessandro José Francisco
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Silva, Junia Coutinho Anacleto
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https://lattes.cnpq.br/6200743168568684
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https://lattes.cnpq.br/4366749699251249
To prepare quality learning material that can provide meaningful learning, considering the students previous knowledge, the place where they live in and the culture they acquire along their lives, i.e. their common sense, is still a great challenge for learning process. Considering the context of e-learning, focusing on Distance Learning (DL), this challenge is even bigger, because teachers and students are separated physically and/or temporally. Teachers have to deal with using computer and Internet in order to edit Web content, guaranteeing support for students meaningful learning. Organizations dedicated to DL and universities have created the concept of Learning Objects (LO), a format for organizing and structuring any digital material focused on education. For teachers to use common sense knowledge in LO edition, two module supported by common sense knowledge was integrated into Cognitor, a computational framework to edit Web-like learning material. One of the modules gives access to the Open Mind Common Sense (OMCS-Br) knowledge base and, given a concept on which teachers wish to work on, other related concepts are retrieved from the common sense knowledge base and presented to teachers who can insert them into the structure of the hyper document in order to elaborate related contend for that concept afterwards. In the case studies developed in this project, a verification was performed on the common sense support for helping teachers to structure LO with better quality by using the Knowledge View assistant available in Cognitor, which is based on Novak s Conceptual Map Theory, applying the patterns of CogLearn, a HCI and Pedagogical Pattern Language developed at the Advanced Interaction Laboratory (LIA). Besides of that, the potential use of such kind of knowledge for fulfilling LO metadata, making easier their reuse, is approached in a second module available on Cognitor.
Projeto de um framework para visualização e controle de simulações distribuídas em diferentes plataformas de software e hardware
(Universidade Federal de São Carlos, 2008-05-31)
Iwasaki, Fábio Minoru
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Araujo, Regina Borges de
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https://lattes.cnpq.br/8964123297688432
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https://lattes.cnpq.br/3358186294901027
Computer simulation can be used to assess future risks and to support decision making and can be modeled either for quick runs to predict the state of a real-world system or for indeterminate runtime to allow human interaction in a virtual environment for training. To facilitate the modeling and implementation of those simulations, many commercial software suites are available, but proprietary technologies are limited when there is the need to reuse a particular implementation together with other solutions. Faced with the need for interoperability, the High Level Architecture (HLA) standard defines a communication infrastructure for data sharing and synchronization among distributed simulation models. Using the HLA as its basis, this work defines a framework to generate an application for simulation control and management using tridimensional graphics for visualization through the Extensible 3D (X3D) standard. The X3D specifies a runtime environment for 3D content presentation and defines a language and a set of components to describe that content. By using the HLA and X3D standards integrated into technologies such as Web services, this framework provides a solution to visualization and control of distributed simulations in different software and hardware platforms.
Zoneamento ecológico-econômico do município de Santa Cruz da Conceição-SP: uma proposta conceitual de planejamento para a sustentabilidade local
(Universidade Federal de São Carlos, 2008-06-04)
Araujo, Ronaldo Tavares de
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Pires, José Salatiel Rodrigues
;
https://lattes.cnpq.br/3412204514901170
;
https://lattes.cnpq.br/8209718458963475
Due to the fact that governmental decisions centralize local sustainability as a basis for reaching global sustainability, planning and establishing directives for municipal territories are growingly important. Therefore, the objective of the present study was to characterize, analyze and elaborate a conceptual proposal for ecological-economical zoning in the city of Santa Cruz da Conceição, state of São Paulo, Brazil, using Geographical Information Systems GIS in order to create a digital georeferenced database that would enable the understanding of the structure and functioning of natural systems for the sustainable use of natural municipal resources. Characterization and zoning were based on topographical charts and aerial photographs. Results led to the construction of maps of structural elements in the landscape, analysis of erosion risks, and definition of zones of environmental fragility. For each zone, the problems, limitations and potentials were determined. Besides, tendency and directions were projected in order to determine general and specific directives for the preservation of natural characteristics and prioritization of the potentialities in each area. The municipal territory was divided into four zones that showed distinct levels of environmental fragility: zone of major relative environmental fragility (ZMAF), zone of medium relative environmental fragility (ZMEF), zone of major relative environmental stability (ZMAE) and urban zone (ZURB). ZMAF and ZMEF were predominant in the landscape of the city with 37.54% and 41.62% of the area, respectively. Results obtained evidenced the need to determine legal public, technical and financial tools for the social control of existing environmental impacts, to substitute and diversify socialeconomical matrices and to adequate the use of natural resources to local environmental fragilities.
Estudo da tenacidade à fratura por meio do método do trabalho essencial de fratura (EWF) da blenda PBT/ABS, reforçada com fibra de vidro
(Universidade Federal de São Carlos, 2008-06-05)
Razzino, Carlos do Amaral
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Hage Júnior, Elias
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https://lattes.cnpq.br/1240692926327687
;
https://lattes.cnpq.br/2638794744443674
High rubber content acrylonitrile-butadiene-styrene terpolymer (ABS) has been used to tough PBT. As a result, super tough PBT/ABS blends under notched Izod impact have been obtained. However, there has been a significant reduction in the PBT/ABS Young modulus. The development of an optimum stiffness-toughness balance in PBT/ABS blends can be achieved by addition of short glass fibers to the composite blends. The composite performance is strongly dependent on the matrix-fiber interface and consequently the surface treatment of the fiber is a key factor to be considered. In the present work, the effect of two kinds of glass fibers treatment on the mechanical properties of PBT/ABS blends is investigated and the results discussed in terms of the changes of the fiber wettability and interfacial adhesion strength of the fiber to the resin. The processing conditions used to prepare glass fiber reinforced tough PBT/ABS blends were studied to observe the best conditions to maintain the toughness and stiffness of the blend as high as possible. A twin screw extrusion was used to prepare the reinforced PBT/ABS blends. Tensile, impact and essential work of fracture (EWF) testing was carried out to evaluate the mechanical properties for stiffness and toughness of the reinforced blends, respectively. The results have shown a strong dependence of the mechanical properties on the surface treatment of the fibers and these results are corroborated by electron microscopy micrographs that clearly illustrate the changes in the composite fiber/matrix interface in the presence of differences in surface treatments of the fiber. The development of an optimum stiffness-toughness balance in PBT/ABS blends was achieved and EWF has been successfully applied to evaluate the toughness for PBT/ABS blends.