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Reamostragem bootstrap em amostragem por conjuntos ordenados e intervalos de confiança não paramétricos para a média
(Universidade Federal de São Carlos, 2005-01-27)
Taconeli, Cesar Augusto
;
Barreto, Maria Cecília Mendes
;
https://lattes.cnpq.br/2218053283392257
Ranked set sampling is an efficient and practice way to obtain more precise estimative when the sample size is small because of the high cost or difficulties to measure the interest variable. Using rough and cheap qualitative or quantitative information, the sample units are ranked before their effective measurement. In 1952, McIntyre introduced the ranked set sample design to estimate the average yields from plots of cropland, using the ranked set sample mean, X . Cesario and Barreto (2003) have shown a parametric version of bootstrap confidence intervals for normal distribution mean. Because of the restriction of small sample size, the distributional assumption may not be reasonable, producing no liable estimates. So the study and proposition of precise interval estimators of the population mean could be relevant and are the main interest of this work. Using resampling methods, we propose in this work an extension of bootstrap resampling for ranked set sampling. A simulation study is conduced to the properties of single random sample bootstrap confidence intervals and the similar using our version for ranked set sampling. The analysis of the simulation study have shown the gain of precision for using the ranked set sampling bootstrap confidence intervals in the population mean.
Sistema de apoio à decisão para programação da produção em fundições de mercado.
(Universidade Federal de São Carlos, 2005-01-27)
Teixeira Junior, Rodolfo Florence
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Pereira, Neocles Alves
;
https://lattes.cnpq.br/3744216524256924
;
Fernandes, Flavio Cesar Faria
The aim of production scheduling is to time the use of resources to carry out the production orders required to meet a previously defined production need. Due to the changes in the production settings, defined by the increase in competition and diversity of products, there has been increasing complexity in the development of production scheduling process, mainly when complex production settings are considered. Despite the developments in the area, a significant number of production settings still do not use the applicable solutions in the area. The initial aims of this work were to create alternatives to fill this gap. From these findings and based on an initial survey, carried out in the interior of São Paulo State, regarding the productive settings of foundries which work with customized products made to order, also known as steel casting foundries, effective alternatives for the production scheduling process for this specific production settings were sought. This work presents a viable proposal for the production scheduling process in steel casting foundries, considering its main particularities and restrictions, using a decision support system, which employs a single cycle system known as Period Batch Control (PBC). Among the results obtained, a methodology for the rationalization and systematization of the decision-making process in the production control was proposed. For the development of a decision support system in ordering process, the following viable decision-making models were proposed: a model of binary integer programming; a model based on classical approximation methods, specifically the method known as beam search ; and a meta-heuristic model based on genetic algorithms. The results obtained from the application of decision-making models in experimental production situations similar to the reality of production in steel casting foundries have confirmed the practical viability of these models, providing a comparison of the results between distinct modeling techniques. It has also contributed to the designing of guidelines for other applications of decision support systems in the operational area of complex production settings. Finally, the suitable of the proposed system was conformed by a later survey carried out in the main steel casting foundries in the interior of São Paulo State.
Construindo o início da docência: uma doutora em educação vai-se tornando professora dos anos iniciais do ensino fundamental.
(Universidade Federal de São Carlos, 2005-01-28)
Rocha, Gisele Antunes
;
Lima, Emília Freitas de
This investigation, of qualitative nature, sought to know how a Doctor in Education becomes a teacher of the starting grades of elementary school and was organized around the following questions: How does the learning of a Doctor in Education who is beginning to teach the starting grades of elementary school characterize itself? Are there differences (or not) between the professional learning of this teacher and the other beginner teachers, without the same academic experience, investigated on other studies? The research was developed in two phases. On a first moment, I followed the building of a beginner teacher s practice by means of her narratives written during the first semester of the school year and, near the end of the year, I brought back questions shown in her registries on two interview sessions. On a second moment, when the teacher was already working in another teaching institution, I got to talk to her again on three interview sessions, to share my interpretation of the data, clarify some aspects and give voice to her ideas and analysis. This way, I met at the same time the methodological (this kind of study demands a comprehension of the meaning attributed to the data by the teacher) and ethical dimensions (the teacher had reached a more advanced level on her studies than mine, and on these studies she was the subject). The data were organized on the following analysis focuses: difficulty in managing time and the available conditions versus the specific learning difficulties of the students, difficulty to take control of the situation and learning sources of professional teaching. For the data analysis, I took as theoretical reference studies about the building of teaching beginning, teaching knowledge, the relationship between thought and action, and five other correlated researches. The results indicated that even the teacher being a Doctor in Education, her first teaching year was a period marked by great difficulties and doubts, such as indicated by the literature in the area. They revealed that teaching knowledge is temporal, plural, existential, social and pragmatic, as said Tardif and Raymond; confirmed the idea that the relationship between thought and action is not linear, given that the origin and the direction of the action must be searched in particular situational conditions in which practice is made, confirming the ideas of Zabalza; highlighted the importance of relationship with the students, pairs, theoretical studies and institutional politics as sources of learning for professional teaching. It was possible to detect points that revealed, by the data, some differentials brought by the fact of the teacher being a Doctor in Education. Apparently, this fact was more highlighted on the conceptions than on the ways of acting. The importance of support to the teachers on beginning careers by the school was very highlighted as it is also said by the literature in order to take the teachers formation process as a collective and continuous construction and, mainly, in order to keep the students of these teachers from suffering the consequences of their nonexpertise.
Diversidade de bactérias endofíticas de raízes de milho (Zea mays L.) e potencial para promoção de crescimento
(Universidade Federal de São Carlos, 2005-01-31)
Cerigioli, Márcia Maciel
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Melo, Itamar Soares de
;
https://lattes.cnpq.br/3194409322547085
Due to the ever-increasing amounts of nitrogenous and phosphates fertilizers which are used for crop production, the great energy need for the production of these, and to the environmental impact provoked by the lixiviate, it is becoming very important to try to extend biological nitrogen fixation to nonlegume, as well as the use of the solubilization of inorganic phosphate of reservations of the soil for the bacterias turning it available the plants in general. It is also important the understanding of the interaction bacteria-plant in the production of the auxin IAA and your use in the increase of the crop production, besides the knowledge of the diversity of endophytic bacterias for a possible use of the same in several ways, due to your adaptation to the internal conditions of the plants. This way, this work had as objectives to study the diversity of bacterias endofíticas in the culture of the corn (Zea mays) and to select endophytic with potential for the growth promotion and your activity in the plant. This work had as objectives study the diversity of endophytic bacterias in the culture of maize (Zea mays) and to select of their plant-growth promoting potential and activity in the plant. The diversity was evaluated in plants collected at four places of the State of São Paulo and the identification was performed by the fatty acids method extraction (FAME). A great number of bacterias was isolated where the difference can be observed in the diversity in relation to the places. The largest diversity of species was observed at the place of Lins. The group Proteobacteria prevailed in the endophytic bacterial communities being the γ- subdivision and in the Enterobacteriaceae Famíly the most frequent and with larger diversity. The most frequent genus were Stenotrophomonas and Bacillus. The populations endophytic maize present characteristics related to the plant growth promotion as, production of IAA, nitrogen fixation, and to solubilize phosphate. The different cultivation conditions and genotypes, as well as of developmental stage they might have influenced the observed physiologic diversity. Endophytic bacterias belonging to the species Klebsiella pneumoniae, Microbacterium saperdae, Stenotrophomonas maltophilia, Enterobacter cloacae, Bacillus megaterium and Pseudomonas mucidolens promoted the increase of root weight and of the aerial part of maize plants, presenting to application potential.
Um modelo consistente para o processo de fotocontagem contínua e medidas de emaranhamento de sistemas quânticos de variáveis contínuas
(Universidade Federal de São Carlos, 2005-02-10)
Dodonov, Alexandre
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Mizrahi, Salomon Sylvain
;
https://lattes.cnpq.br/8143137168199991
This dissertation embraces two trends of research in modern quantum optics. The first of them is connected to the photodetection theory, particularly to the continuous measurement theory developed by Srinivas and Davies (SD) in 1980 s, whose principal ingredient is the correct choice of the quantum jump superoperator. We deduce from first principles diﬀerent possible quantum jump superoperators, and employ one of them the nonlinear quantum jump superoperator, proposed independently ad hoc by Ben-Aryeh and Brif and Oliveira et al. to study the modifications it brings to the SD theory. We call this model as E-model and generalize the both models (SD model and E-model) by including dissipation eﬀects due to the imperfections of the cavity and of the detector. Finally, we study some specific applications of continuous photodetection theory (homodyne detection and detection of correlated photons) and compare the results between the two models. The second trend of this dissertation is related to the study of entanglement of continuous variables quantum states. We give a simplified form of Simon s separability criterion for two-mode Gaussian states, showing that for systems whose unitary evolution is governed by arbitrary time-dependent quadratic Hamiltonians, the separability dynamics is completely described in terms of the determinant of the cross-covariance matrix. As concrete examples we consider the evolution of the inverse negativity coeﬃcient (which gives a quantitative estimation of the degree of entanglement ) for two initially uncoupled modes (each being in a squeezed thermal state) in the cases of parametric converter, parametric amplifier and for a cavity whose boundary oscillates in resonance with two field modes.
Estudo da avifauna em quatro fragmentos de Mata Atlântica no Estado de Pernambuco, Brasil
(Universidade Federal de São Carlos, 2005-02-16)
Neves, Rachel Maria de Lyra
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Dias Filho, Manoel Martins
;
https://lattes.cnpq.br/1346547036069954
This research aimed to investigate the avifauna of the Atlantic Rain Forest of Pernambuco State. It took place in four woodland fragments. Two fragments of semideciduos forest at the Ecological Station of Tapacurá (EET), São Lourenço da Mata county: Camocim forest 150ha and Toró forest 100ha. Other two in humid forest: Ecological Refuge Charles Darwin (RECD) with 60ha, in Igarassu county; Gurjaú State Natural Park (RESG), with circa 1077ha, which belongs to three counties of the rainy belt, southward from Recife, Cabo de Santo Agostinho, Jaboatão dos Guararapes and Moreno. This work is divided into three chapters. The first one is the qualitativequantitative surveys of the avifauna of EET through point count, where the counting of the birds in previously established tracks with five sampling sites distributed in every 200m was made in a 25m radius, lasting 20min. The second is the bionomical and biometrical study of the avifauna pertaining to EET and RECD fragments, where a mist net was used to capture the birds, which were subsequently measured and analyzed for molt, feathers worn and breeding. The third and final chapter consists of the first evidenced records of Myiarchus tuberculifer for Pernambuco, which was registered during the qualitative-quantitative survey in EET and RESG. The register of this species was made through audio-recording of its vocalizations with Aiwa TP-560 and Sony TCM-5000 mini-audiotapes. The studies carried through in these woodland fragments are highly meaningful for the knowledge and monitoring of the bird populations, as well as to the preservation of the studied areas.
Taxonomia e diversidade dos Alysiinae (Hymenoptera: Braconidae) Neotropicais, com ênfase na fauna da Mata Atlântica, Brasil
(Universidade Federal de São Carlos, 2005-02-17)
Arouca, Raquel Gonçalves
;
Dias, Angélica Maria Penteado Martins
;
https://lattes.cnpq.br/8637344058859147
The material studied comes from eighteen localities of Atlantic Forest from BIOTA/FAPESP Project: João Pessoa, PB; Recife, PE; Quebrangulo, AL; Santa Luzia do Itanhy, SE; Mata São João, BA; Mata da Esperança, BA: Porto Seguro, BA: Linhares, ES; Santa Teresa, ES; Santa Maria Madalena, RJ; Nova Iguaçu, RJ; Ubatuba, SP; Salesópolis, SP; Ribeirão Grande, SP; Peruíbe, SP; Morretes, PR; São Francisco do Sul, SC and São Bento do Sul, SC. Other specimens from the DCBU collection (Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de São Carlos) were studies too. The material was collected using three techniques: Malaise traps, Moericke traps and sweeping vegetation. The amount of Alysiinae examined was 2.920 specimens (2.082 of BIOTA/FAPESP Project and 838 of other collection), identified in 14 genera. Dinotrema, Aphaereta e Phaenocarpa were the most frequent genera. Indices of Diversity and Equitability were used to discuss the richness and dominance of genera in each locality. The higher values of richness were recorded in Nova Iguaçu, RJ; São Bento do Sul, SC; São Francisco do Sul, SC; Santa Teresa, ES e Santa Luzia do Itanhy, SE and the lower in João Pessoa, PB; Recife, PE; Mata São João, BA; Porto Seguro, BA e Linhares, ES. These data evidenced a trend to the enrichment of the Alysiinae fauna to the Atlantic Forest areas in largest latitudes. The higher Diversity Index was recorded in Santa Luzia do Itanhy, SE and the lower in João Pessoa, PB. Linhares, ES presented the highest Equitability and Santa Teresa, ES the lower. Cluster Analysis was adopted taking as attribute the occurrence of the Alysiiinae genera. Four species of Phaenocarpa and Aphaereta confusa Wharton, 1994 female were described. Eight species were reported from Brazil for the first time: Gnathopleura carinata (Szépligeti, 1904); G. bugabensis (Cameron, 1887); G. semirufa (Brullé, 1846); Ilatha pulchripennis (Latreille, 1805); Idiasta delicata (Papp, 1969); Phaenocarpa pericarpa Wharton & Carrejo, 1999; P. cratomorpha Wharton, 1994 and Aphaereta confusa Wharton, 1994; and four new genera were identified. Those results show the importance and the need of the taxonomic and ecological studies on the subfamily Alysiinae, especially in the Neotropical region.
Obtenção de uma desintegrina recombinante de Agkistrodon contortrix laticinctus e estudo dos efeitos de desintegrinas na expressão do fator de crescimento de endotélio vascular
(Universidade Federal de São Carlos, 2005-02-17)
Ribeiro, Juliana Uema
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Araújo, Heloísa Sobreiro Selistre de
;
https://lattes.cnpq.br/4065824911933203
;
https://lattes.cnpq.br/4065824911933203
Disintegrins are snake venom proteins used in the study of integrin-mediated cellular adhesion through integrins. Recombinant disintegrin production may notable supply faster, larger and most homogeneous protein samples than bruit venom processing. This work describes optimization of the recombinant ACLD-C expression technique. ACLD-C is a disintegrin-like protein from Agkistrodon contortrix laticinctus, that have a disintegrin-like domain with DCD motif, and a cysteine-rich domain. This protein was subcloned from the ACLD clone (GenBank U86634), a metallopeptidase. A protocol of expression was established in our laboratory, where recombinant ACLD-C is produced in E. coli, using the expression vector pMal-p. This allows protein target expression in form of N-terminal fusion with MBP (maltose-binding protein), that facilitate purification, correct folding and production of disintegrin in soluble form. In fact, MBP/ACLD-C was was expressed in soluble form and purified in two stages: affinity comatography in amilose resin and cromatography of gel-filtration in superdex-200 resin. Modifications in expression protocol optimized MBP/ACLD-C expression in culture of 0,4 mg/L of culture of 1,2 mg/L (12,6% total of protein in periplasmic space of E.coli). MBP/ACLD-C imobilizated in amilose resin was subjected to digestion with enzyme factor Xa to separate ACLD-C of MBP. The separation was confirmed through positive reaction with anti-ALT-C antibody. ALT-C is a disintegrin-like protein from Bothrops alternatus. ALT-C induced both expression of VEGF in human fibroblasts and proliferation of endothelial cells and angiogenesis. In second part of this work, we investigated if MBP/ACLD-C was also able to induce the expression of this growth factor in this cells. MBP/ACLD-C and two other disintegrins, echistatina, a disintegrin-RGD, and EC6, a heterodimeric disintegrin, were incubated with fibroblasts. The influency of these proteins in VEGF expression was evaluated by ELISA. MBP/ACLD-C was able to strongly induce the expression of VEGF until 4 hours, when the level decreased until 24 hours. Experiment in period of 24 48 hours was not done due to problems of contaminations. Echistatin did not induced VEGF expression, but induced fibroblasts dettachment from plastic. The latter event was not observed in MBP/ACLD-C or EC6 incubated cells.
Desenvolvimento de procedimentos analíticos para a determinação de N-acetilcisteína em produtos farmacêuticos
(Universidade Federal de São Carlos, 2005-02-17)
Suarez, Willian Toito
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Fatibello Filho, Orlando
;
https://lattes.cnpq.br/9859737944357808
;
https://lattes.cnpq.br/6680603267238159
In this dissertation four analytical procedures for the determination of Nacetylcysteine in pharmaceutical formulations are described. The first procedure developed was a flow injection analysis system for turbidimetric determination of Nacetylcysteine employing Ag+ ions in an acid medium as the precipitant reagent. In this system, 250 µL of 0.01 mol L-1 AgNO3 solution and 500 µL of sample solution were inserted simultaneously into a merging zones flow system. After the precipitate formation in a 100 cm coil reactor, the precipitate generated was monitored turbidimetrically at 400 nm. Desionised water flowing intermittently at 6.3 mL min-1 was used to wash out the precipitate during the sampling stage. The analytical curve was linear in the N-acetylcysteine concentration range from 1.0 x 10-4 to 1.0 x 10-3 mol L-1; with a detection limit of 8.0 x 10-5 mol L-1 (3σB/slope) and sampling frequency of 60 h-1 was obtained. The relative standard deviation was smaller than 1% for Nacetylcysteine solutions in the concentrations of 1.0 x 10-4 and 5.0 x 10-4 mol L-1 (n=20). The recoveries obtained for two samples ranged from 104 to 122%. A flow injection system with spectrophotometric detection is proposed for determining Nacetylcysteine in pharmaceutical formulations. In this system, N-acetylcysteine was oxidized by Fe(III) and the Fe(II) produced is spectrophotometrically monitored as Fe(II)-1,10-phenantroline complex at 515 nm. Under the optimum analytical conditions, the linearity of the calibration graph for N-acetylcysteine ranged from 1.8 x 10-5 to 1.5 x 10-4 mol L-1. The detection limit of 6.3 x 10-6 mol L-1 (3σB/slope) and recoveries between 102 to 113 % were obtained. The preparation and electrochemical characterization of a carbon paste electrode modified with copper (II) hexacyanoferrate(III) (CuCHF) as well as its behaviour as electrocatalyst toward the oxidation of N-acetylcysteine were investigated. The electrochemical behaviour of the modified electrode and the electrooxidation of N-acetylcysteine were explored using sweep linear voltammetry. The best voltammetric response was observed for a paste composition of 20%(w/w) copper (II) hexacyanoferrate(III) complex, acetate buffer solution at pH of 6.0 as the electrolyte and scan rate of 10 mV s-1. A linear voltammetric response for N-acetylcysteine was obtained in the concentration range xiv from 1.2 x 10-4 to 8.3 x 10-4 mol L-1, with a detection limit of 6.3 x 10-5 mol L-1 (3σB/slope). The proposed electrode is useful for the quality control and routine analysis of N-acetylcysteine in pharmaceutical formulations. Finally, a simple, precise, rapid and low-cast potentiometric method for N-acetylcysteine determination in pure form and in pharmaceutical preparations is proposed. N-acetylcysteine present in tablets containing known quantity of drug was potentiometrically titrated in aqueous solution with AgNO3. No interferences were observed in the presence of common components of the tablets as saccharin, sucrose and EDTA. The analytical results obtained by applying the proposed method compared very favorably with those obtained by the comparative method. Recovery of N-acetylcysteine from various tablets dosage formulations range from 98.7 to 103.0%. Compared to others procedures reported in the literature the procedures developed in this dissertation shows to be better and cheaper to determination of N-acetylcysteine in pharmaceutical formulations.
Perfil psicomotor: caracterização de escolares da primeira série do ensino fundamental de colégio particular
(Universidade Federal de São Carlos, 2005-02-18)
Pereira, Karina
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Tudella, Eloisa
;
https://lattes.cnpq.br/3207258034860219
The aim of this study was to characterize the psychomotor profile of schoolchildren attending the first grade in Elementary School, considering their gender, gestational age and physical aspect, as well as to analyze the relationship between motor and school performances. After obtaining parental consent, 37 children (20 boys and 17 girls) aging 6,5 to 7,8 years old (M=7, 2 ± 0,4) were enlisted from two classrooms of a private school (SAPIENS), in São Carlos/SP, in order to participate in this study. The assessment tool was Fonseca´s Psychomotor Battery (PMB) (1995), which consists of 7 psychomotor categories: Tonicity, Equilibration, Lateralization, Body Perception, Time-Spatial Structurization, Global Praxis and Fine Praxis. Each of these categories can score from 1 to 4, according to the following profiles: (1) Apraxic; (2) Dyspraxic; (3) Eupraxic; (4) Hyperpraxic. The children were assessed only once. From the data analysis, it was possible to verify that the children with an average age of 7 years and 2 months presented eupraxic psychomotor profile. ANOVA test (P≤0, 05) was applied to characterize the psychomotor profile within the criterion of scores. There was no significant difference (p=0,848) in the characterization between the genders. Nevertheless, the girls presented higher scores in most of the categories, except in global praxis. In the characterization between gestational ages, there was a significant difference (p=0,047) in fine praxis, inasmuch as the scores of the full-term children were higher than the pre-term ones. In the characterization among physical aspects, there was a significant difference in Tonicity (p=0,013) and Equilibration (p=0,05). In both factors, the mesomorphic children presented better performances. On the other hand, in global praxis (0,018), the endomorphic children presented better performances in relation to both ectomorphic and mesomorphic children. From the comparison between motor and school performances, it was possible to verify significant differences in body perception and global praxis concerning mathematic calculation. In short, it was verified that the gender did not influence the profile characterization of the children. However, the gestational age, the physical aspect as well as motor and school performances were determinant in their performance characterization. In general, the schoolchildren analyzed were characterized as presenting normal psychomotor profile.
Ensino de discriminações condicionais por imitação: efeitos de dois arranjos de apresentação de tentativas.
(Universidade Federal de São Carlos, 2005-02-18)
Sella, Ana Carolina
;
Goyos, Antônio Celso de Noronha
;
https://lattes.cnpq.br/3407008711535651
Imitation can be defined, in general terms, as the similarity of behavior between two organisms when the response topography of one, the imitator, is similar to nd controlled by the behavior of the other, the demonstrator. Along the years there has been a lot of controversies involving imitation`s conceptualizations and discussions on how it is produced and maintained. Some authors say that imitation, as any other behavior, needs to be directly reinforced in all its instancies to be established and maintained. Other authors emphasize the need of only some responses being reinforced, thus generalizing to others. Independently of the presence of direct reinforcement, imitation has been used as a teaching technique for many behaviors. Most behaviors that are taught through imitation are simple motor behaviors. Researches that use imitation as a teaching technique for complex behavior, such as conditional discrimination, are still new and raise lots of questions for investigation. One of these questions is the possible influence of trial arrangements on the participants` performance, when analyzing numbers of session to criterion. Research protocols on teaching conditional discriminations through imitation present, unsystematically, either one trial to the observer execute after each one presented by the demonstrator, or many trials to be executed by the demonstrator, for then, the observer do his. In this study, it was tried to compare these trials arrangements systematizing two protocols to be used with all subjects. Each set of pairs of conditional relations (BA or CA) was taught in either one of these ways: 1) for each trial demonstrated by the demonstrator, the observer executed one; 2) for each block of trials demonstrated, the participant executed another block of trials. Another difference from the protocols that have already been studied, was the presence o some identity trials with programmed consequences during the arbitrary matching training. As general results, all participants learned the conditional discriminations programmed by the study (BA and CA) and showed the emergence of equivalence classes. independently of trial arrangement and without planned consequences for the trials. This learning may be result of generalized imitative responses that could be maintained through other reinforced imitative responses that were not the arbitrary conditional discriminations (BA and CA). The large number of trials needed to criteria, may, however derive from this lack of reinforcement. In quantitative terms, trial arrangements did not result in different performance. However, data show that, when the trials were presented in an alternate way, the participant s behavior seemed to be only under the control of the comparison stimuli chosen by the demonstrator, without attending to the sample stimuli. Even though the results obtained by the two types of trial presentation were quantitatively similar, questions were raised on which trial arrangement would establish the best stimulus control when imitation is used as a teaching technique. This issue is specilly important because the better established the stimulus control is, the more effective is the conditional discrimination learning.
Efeitos do envelhecimento e da osteoporose na cifose torácica, na propriocepção e no torque dos músculos do tronco.
(Universidade Federal de São Carlos, 2005-02-18)
Granito, Renata Neves
;
Oishi, Jorge
;
https://lattes.cnpq.br/1417328590472858
The aim of this study was to evaluate the effects of aging and osteoporosis on thoracic kyphosis degree, on extensors and flexors trunk muscles torque and on proprioception. Moreover, this study investigated the possible correlation among the variables studied in this work. It was evaluated 40 voluntary women, divided in four distinct groups: Young Group (10 women) aged between 20 and 30 years old, Adult Group (10 women) aged between 40 and 50 years old, Old Group (10 women) aged more than 60 years old and Osteoporotic Group (10 women) aged the same as the previous group, however with diagnosis of osteoporosis on spine. The volunteers were submitted to a previous interview, to a bone densitometry to quantify the bone mineral density of lumbar spine and to an x-ray of the thoracic spine in lateral view to verify the thoracic kyphosis degree. Moreover, the volunteer were submitted to a proprioception evaluation and to the isokinetic test of the trunk muscles, both performed on the BIODEX SYSTEM 3 equipment. Data were statistically analyzed (p ≤ 0, 05). The results showed that thoracic kyphosis degree was significantly greater in the Osteoporotic Group, followed by the Old Group, Adult and the Young Group. It was found a significant reduction on the trunk extensor torque imposed by ageing and aggravated by osteoporosis. The ageing process was still responsible for a reduction on the trunk flexor torque, but this condition was not exacerbated by osteoporosis. The extensor torque was greater than the flexor, during both eccentric and concentric contractions, in both velocities of the isokinetic test. However, there were no significant differences between the groups on the extensor and flexor torque relation. The older volunteers, with and without osteoporosis, showed a greater proprioceptive deficit than the younger volunteers. It was found a significant negative correlation between bone mineral density with kyphosis degree and positive correlation between mineral density and trunk extensor torque. The thoracic kyphosis degree showed a negative correlation with the trunk extensor torque and a positive correlation with age and proprioceptive deficit. This study concluded that the physiologic aging process is responsible for an increased thoracic kyphosis, a reduction of the extensor and flexor trunk torques and a reduction of the proprioceptive sensibility. The osteoporosis amplifies the increase in thoracic kyphosis and the reduction on the trunk extensor torque imposed by age. However, the osteoporosis does not have any effect on the aging reduction of flexor torque of trunk muscles and on proprioceptive deficit.
Restauração das imagens do satélite CBERS-1 utilizando POCS
(Universidade Federal de São Carlos, 2005-02-18)
Papa, João Paulo
;
Mascarenhas, Nelson Delfino d'Ávila
;
https://lattes.cnpq.br/0557976975338451
The number of applications in remote sensing has widely increased in the last years. The reason for this is mainly the high quality of imaging systems onboard. Among this new generation of satellites, the CBERS-1 (China-Brazil Earth Resources Satellite) was developed through a partnership between Brazil and China, and its main mission is to capture high-resolution images of the Earth using panchromatic and multispectral detectors. However, the information provided by remote sensing needs to be processed to better reflect the radiometric quality of the data, using for this purpose a technique called image restoration. The main goal of image restoration is the reconstruction or recovery of the degraded image using some a priori knowledge of the degradation phenomenon. In this work we developed five image restoration algorithms based on the theory of convex projections, which were obtained through the CBERS-1 band 2 CCD sensor. These algorithms are based on the application of restrictions in convex sets form, through the POCS (Projections Onto Convex Sets) method, where the intersection among these sets, if it exists, gives a satisfactory solution for the problem. The simulations were developed using the RAP (Row-Action Projections), the SIRT (Simultaneous Iterative Reconstruction Technique) and an algorithm that uses prototype image constraints, which were obtained by the methods cited above and by the MIF (Modified Inverse Filter). The results were visually and numerically evaluated.
Atividade elétrica dos estabilizadores dinâmicos da patela no exercício de agachamento associado a diferentes posições do quadril em indivíduos normais e portadores de síndrome da dor femoropatelar
(Universidade Federal de São Carlos, 2005-02-18)
Say, Karina Gramani
;
Pedro, Vanessa Monteiro
;
https://lattes.cnpq.br/4302307099019276
;
https://lattes.cnpq.br/5096508613057074
The purpose of this study was to evaluate the electrical activity of the Vastus Medialis Obliquus (VMO), Vastus Lateralis Obliquus (VLO) and Vastus Lateralis Longus (VLL) in the isometric wall slide squat exercise at 45 and 60º knee flexion associated in a neutral position (NP), 45º of lateral rotation (LR 45), 15º of medial rotation (MR 15) and 30º hip medial rotation (MR 30) only in the 45o angle. The electrical activity of the VMO, VLO and VLL of 15 healthy subjects control group (21,13 ± 2,17 years) and 12 subjects with Patellofemoral pain syndrome (PFPS) PFPS group (21,08 ± 2,31 years), female, was picked up using simple active differential surface electrode, the electromyography system of 8 channels and software Aqdados 7.2.6. The data were normalized by the percentage of the squatting exercise at 75º flexion and hip in neutral position RMS (µV). The volunteers executed the exercise on the Squat Platform that permitted the standing on the hip rotation desirable and the electrogoniometer indicated the amplitude of knee flexion. The ANOVA with repeated measures was used to analyze the data as well as the Duncan pos hoc (p≤0,05). The results of this study revealed no significant interaction between any knee angulation and hip position and every muscles showed significantly higher electrical activity at 60º squatting compared with 45º, on both groups. For the control group, intramuscles analysis, there was no statistical difference for hip position and intermuscles analysis, at 45º squatting as well as 60º, the VLL muscle showed greater electrical activity than VMO (p=0,00036 - 45º; p=0,02 - 60º) and VLO muscle (p=0,00013 - 45º; p=0,0048 - 60º), whereas there was no significant difference between the VMO and VLO muscle (p=0,68 - 45º; p=0,51 - 60º). For the PFPS group, in intramuscles analysis, just VLO muscle showed significantly difference to hip position (p=0,019), that this electrical activity greater in 60º LR (p=0,00); on the analysis between muscles it was revealed that, in 45º squatting, the VLL muscle showed significantly greater electrical activity than the VMO (p=0,005) and the VLO muscles (p=0,000), whereas, the VMO muscle showed greater electrical activity than VLO (p=0,0001). On the other hand, at 60º squatting, the electrical activity of VLL and VMO were greater than VLO muscle (p=0,000 VLL; p=0,0001 - VMO). However, there was no significative difference between VMO and VLL (p=0,72). The analysis between the groups revealed that just the VMO muscle of the PFPS groups showed greater electrical activity than VMO from the control group in 60º squatting with hip rotation analyzed, except in LR (p=0,00036). The results of this research, obtained under the experimental conditions, indicated that the squatting exercise at the 60º angle, in any hip position (except in the lateral rotation) is indicated for the PFPS treatment since it presents a higher stability of the medial and lateral components of the muscle (VMO and VLL). On the other hand, the squatting exercise at the 45º, in any hip position, should avoid in the subjects with PFPS because the electrical activity of VLL is higher than VMO.
Desenvolvimento e sistematização de modelo de análise de tarefas industriais para inclusão de portadores de necessidades especiais no trabalho.
(Universidade Federal de São Carlos, 2005-02-18)
Simonelli, Angela Paula
;
Camarotto, João Alberto
;
https://lattes.cnpq.br/1427853773681255
;
https://lattes.cnpq.br/6477451021909733
The work carries out development and systematization of a job position task analysis model, occupied by special needs employees that studies the firm needs and the operations needed from the worker to perform his task. Objectives to serve as a parameter to companies action to put into practice inclusive hire policies as well as facilitate the comply of the law of quota and inclusion of Special Needs Persons on the job market, and contribute to the debate and literature on social inclusion. On the discussion of specialized literature, are presented reflections on the work as the representation of the man as social being and the process of inclusion of Special Needs Persons on the job market. The work shows the application, results and discussion of the model on an aeronautic company.
Caracterização das respostas cardiorrespiratórias e eletromiográficas para exercícios de carga constante em intensidades próximas ao limiar de anaerobiose ventilatório
(Universidade Federal de São Carlos, 2005-02-21)
Pithon, Karla Rocha
;
Silva, Ester da
;
https://lattes.cnpq.br/0120120410847507
This research aimed to identify the ventilatory anaerobic threshold (VAT) in a ramp continuous test and to apply mathematical and statistical methods to study the stability of the variables during the exercise performed in discontinuous steps near the VAT intensity. Eight young men (22,75 ± 2,25 years) were submitted to a ramp continuous ergoespirometric test (protocol I), with 20 to 25 W.min-1 power increments, on an electromagnetic braked cycle ergometer and to 3 discontinuous steps (protocol II), each one lasting 15 minutes, with 70% of VAT (step 1), 100% of VAT (step 2) and 130% of VAT (step 3). The metabolic and ventilatory variables ( O2, CO2, E, PetO2, PetCO2) were collected on a breath-by-breath basis, heart rate (HR) was collected on a beat-to-beat basis, and RMS was calculated for the myoelectrical signal of vastus lateralis muscle. In protocol I, VAT was determined by the loss of parallelism between O2 and CO2; in protocol II data a semi-parametric mathematical and statistical model was applied. For statistical analysis the median confidence interval was applied, α= 5% and descriptive analysis. HR was statistically different between VAT and step 3 and among steps 1, 2 and 3. For O2, CO2 and E data the results were similar, with significant statistical differences between VAT and steps 2 and 3 and among the three steps. For PetO2 the statistical difference was observed between VAT and step 3; PetCO2 and RMS did not show statistical differences. The analysis of the 3o to 9o minute (T1) and of the 9o to 15o minute (T2) of the steps, showed for step 1: for HR 7 stables (S) and 1 crescent (C) and O2 and CO2 8S in T1 and T2; PetCO2 7S and 1 decreasing (D) in T1 and 7S and 1C in T2; PetO2 5S and 3C in T1 and 7S and 1D in T2; RMS 4S, 3D and 1C in T1 and 7S and 1D in T2. For step 2: HR 3S and 5C in T1 and 5S and 3C in T2; O2 and CO2 8S in T1 and T2; PetCO2 4S and 4D in T1 and 5S and 3D in T2; PetO2 5S and 3C in T1 and 8S in T2; RMS 4S, 2D and 2C. For step 3: HR 8C in T1 and 5S and 3C in T2, CO2 8S and O2 7S and 1C in T1 and O2 and CO2 8S in T2; PetCO2 1S and 7C in T1 and 5S, 1C and 2D in T2; PetO2 4S and 4C in T1 and 5S, 2D and 1C in T2; RMS 4S, 2D and 2C in T1 and 4S, 3D and 1C in T2. Conclusions: for young volunteers, on a step protocol, it is necessary to decrease the power intensity around 30% to reach similar cardiorrespiratory values of VAT. PetCO2 and HR showed more sensitive responses to power intensities above VAT and can be used as first signaling of exercise above VAT.
Análise do manejo florestal de "Baixo impacto" e da caça de subsistência sobre uma comunidade de primatas na Floresta Estadual de Antimary (Acre, Brasil)
(Universidade Federal de São Carlos, 2005-02-21)
Calouro, Armanado Muniz
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Pires, José Salatiel Rodrigues
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https://lattes.cnpq.br/3412204514901170
O impacto do turno de trabalho do pai no desempenho acadêmico e no autoconceito de crianças escolares
(Universidade Federal de São Carlos, 2005-02-22)
Cia, Fabiana
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Barham, Elizabeth Joan
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https://lattes.cnpq.br/9868595523538592
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https://lattes.cnpq.br/5999108571365402
Studies show that the quality of father-child interactions is a factor that has a direct influence on child development, including the formation of the children s self-concept and their academic performance. In addition to the father wanting to be involved, however, he also needs to have time and energy to invest in this relationship. Given the heavy demands associated with paid employment (long hours, night shifts, etc.), we hypothesized that the fathers involvement with their children would be influenced by some of their work conditions. Thus, the aims of this study were: a) identify differences that exist between night and dayshifts, with respect to the fathers work conditions, personal wellbeing and family involvement; b) compare fathers who work in these two shifts with respect to the frequency of their participation in their children s daily and academic activities; c) identify work conditions, personal and family factors that influence the frequency of the fathers involvement with their children; d) compare day and nightshift workers children with respect to the frequency of their communication with their fathers, their self-concept and their academic performance; e) examine the correlations that exist between the fathers work conditions, personal and family factors, and the involvement of the fathers with their children, on the one hand, and their children s self-concept and academic performance, on the other hand. The study participants included 58 children in the fifth and sixth grades and their fathers (36 in dayshift jobs and 22 working nightshifts). The fathers completed a questionnaire, Evaluation of work conditions and of parent-child involvement Father´s version . Their children also evaluated the quality of their relationship with their fathers, completing a questionnaire, Evaluating father-child involvement . The Selfdescription questionnaire 1 and the School Performance Test were used o investigate relations between the type and level of the fathers involvement, with their children s self-concept and academic performance. The results show that work conditions and personal and family factors did not differ as a function of the fathers work shift. However, fathers who worked nightshifts indicated that they had less frequent contact with their children, considering the measures used in this study (fatherchild communication; father involvement in childcare; fathers participation in their children s school, cultural and leisure activities; and time that the fathers spend, engaged in activities with their children. In addition, work conditions (interpersonal work environment, work satisfaction and work performance problems) and personal factors (satisfaction with the availability of time for personal activities, and stress) were correlated with the father s sense of adequacy in his family role performance, which, in turn, was positively correlated with the measures used to evaluate the frequency of father-child involvement. The children s reports of the frequency of communication with their fathers and the children s academic performance did not differ as a function of the shift their fathers worked. However, compared to children whose fathers worked dayshifts, the children whose fathers worked nightshifts had a significantly lower academic self-concept. The measures used to evaluate the frequency of the fathers involvement with their children were positively correlated with their children s selfconcept and academic performance. Thus, the lower levels of academic self-concept among children whose father worked the nightshift can be attributed to the less frequent father-child interactions in this group. These results indicate the importance of the father s involvement for the formation of a child s self-concept and their children s academic performance and point to the need for educational interventions directed at fathers, so that they can learn about the many actions that can improve their performance as fathers.
Concepção de um sistema de inteligência competitiva para uma organização do setor de insumos e bens de produção do complexo agroindustrial
(Universidade Federal de São Carlos, 2005-02-22)
Silva, Alexandre Rodrigues da
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Alliprandini, Dário Henrique
The competitive and globalized status in which are the main sectors of economy, justify the importance of a system of competitive intelligence. In essence, it aims to contribute for the organization at least in two aspects: the decision-making and the strategy elaboration. The importance of a competitive intelligence system is more evident in economic sectors that look for more efficiency, as, for example, those linked to the agribusiness, which participation in the Brazilian GPD (Gross Domestic Product) reaches at one third of this macroeconomic index. Thereby, the execution of this research work was proposed and its objective was the conception of a system of competitive intelligence for an organization of the sector of raw materials and production goods from the agribusiness complex. Aiming this objective, the research was developed in two bases. The first one was the bibliographical revision, about the competitive intelligence. In this revision was studied several models of competitive intelligence, their components and some forms of implantation. The second base of the research was the research-action method that had guided the conception of the adapted system for the organization studied. With the confirmation of the suggested hypothesis, and by reaching the aimed result, it was successfully conceived a adapted system of competitive intelligence for an organization of the sector of raw materials and production goods from the agribusiness complex. The conceived system had gathered some hybrid elements from several authors. This had allowed the definition of structural elements and also the establishment of foundations and implementation steps of the system.
A interface família-escola na inclusão de crianças com necessidades educacionais especiais: uma perspectiva ecológica
(Universidade Federal de São Carlos, 2005-02-22)
Pamplin, Renata Christian de Oliveira
;
Martinez, Claudia Maria Simões
This study was based on the assumption that the presence of resources in the home environment in addition to special educational practices can either favor or damage the socialization and learning of children with Special Educational Needs (SEN). The aim was to identify the resources and needs in the home context of children with SEN and verify the relationship of such aspects to the proposals for inclusion from conventional schools of a city in the interior of the state of São Paulo. Sixty-one caregivers of children with SEN (33 with handicap and 28 with failure at school) and a secretary of the Municipal Department of Education participated in the study. A documentary analysis, a semi-structured interview with the secretary, and two questionnaires Inventory of Home Environment Resources (HER) and Questionnaire about Family Needs (QFN) were the instruments used for collecting data, supplying the study with quantitative and qualitative information. The documentary analysis was important since it assisted in finding possible participants. The interview was analyzed according to preestablished categories. The questionnaires were statistically analyzed with the aim of verifying possible significant differences between the two groups of children, as well as the relative frequency of the resources and needs investigated. After examining the results of each instrument, the triangulation among them was calculated so that the theoretical premises originated from the bioecological perspective on human development enabled a systematic reading of the situation studied. The results indicated that political actions on the macrosystem has strongly influenced those situations lived in both microsystem and mesosystem, inasmuch as such actions can either make concessions on certain resources or determine the children s hours and interactions with their family. Differences in quantity of resources offered by the school were verified between children with handicap and children with school failure. The caregivers of both groups were shown to feel the need for information about the children s characteristics, and also about the supports and services of the community. In addition, it was verified the need for financial support to those families whose children present school failure. Therefore, it is possible to conclude that, even though the current municipality s proposal for Special Education aims at parental participation, it does not have, in practice, enough mechanisms and strategies for promoting family involvement, and so it has to review its offer of resources for children with SEN.