A utilização da tomografia computadorizada de feixe cônico (TCFC) permite avaliar a altura e espessura do osso remanescente para a instalação de implantes. As mandíbulas atrésicas necessitam de maior grau de detalhamento para obtenção de medidas. A autora, no presente estudo, avaliou a influência do tamanho dos voxels (0,125mm e 0,25mm) nas medidas de altura e espessura em 10 mandíbulas desdentadas e atrésicas. Para determinação dos cortes tomográficos no estudo foram utilizados fios metáticos nas regiões posteriores. Após o exame as mandíbulas foram seccionadas e as medidas diretas de altura e espessura foram obtidas pelo uso de paquímetro digital. Os resultados pelo teste ICC demonstraram não haver diferenças estatisticamente significantes entre as medidas realizadas pelos dois examinadores com paquímetro e as tomografias. Concluiu-se que a TCFC é confiável para realização de medidas na mandíbula e que o tamanho do voxel não interferiu no planejamento cirúrgico. / The use of cone beam computed tomography (CBCT) allows to evaluate the height and thickness of the remaining bone for implant placement. The atresic mandible requires higher level of detail for obtaining measurements. The author in the present study evaluates the influence of the voxel size (0.125 mm and 0.25 mm) in thickness and height measurements using 10 edentulous dry mandibles. For determination of the tomographic study were used metallic wires in the posterior regions. After examining, the mandibles were sectioned and direct measures of height and thickness were obtained through digital caliper. The results by ICC test showed no statistically significant differences between the measurements with caliper and tomograms made by two examiners. It was concluded that CBCT is trusted to carry out measurements in mandible and the voxel size did not affect the surgical planning.

Esta pesquisa aborda a aplicação do posicionamento RTK (Real Time Kinematics) em modo estático e cinemático, visando representar diferentes usos no cotidiano e comprovar a possibilidade de gerar uma solução de posicionamento RTK de baixo custo. Desde empresas de topografia e locação de obras, passando por empresas geradoras de bases cartográficas, até o segmento do transporte público por ônibus, o uso desta tecnologia, por um valor de aproximadamente R$ 3000,00, pode viabilizar novas oportunidades, como o georreferenciamento com maior acurácia tanto de imóveis rurais quanto de monitoramento de frotas de veículos e a atualização de mapas viários. Para isso, foi gerada uma solução de posicionamento RTK com um receptor GPS (Global Positioning System) móvel, um laptop, um celular com chip GSM (Global System for Mobile Communication), conexão 3G ou via wi-fi e o software livre RTKLib para correção e fixação do posicionamento, além de conexão com estações da RBMC-IP (Rede Brasileira de Monitoramento Contínuo). O RTKLib se sincroniza com o receptor GPS u-blox (sinal L1 e constelação GPS), o qual compacta as observações de fase para o envio dos dados. Os resultados demonstraram que, dependendo da solução RTK (fix ou float), o posicionamento atingiu acurácias abaixo de 1 metro e precisão nesta mesma ordem de grandeza para linhas de bases menores que 10 km. Com linhas de base mais longas, o resultado degradou, conforme o esperado. Os testes cinemáticos indicaram acurácia de até 1,5 metro, podendo ser utilizado como produto para estimativas de trajeto. Além dos resultados qualitativos e quantitativos, a principal contribuição desta pesquisa foi o desenvolvimento de uma metodologia específica, na área de soluções de posicionamento RTK, que trouxe, através da utilização de ferramentas estatísticas, ganhos de produtividade significativos em termos de tempo, equipamentos e mão de obra necessária, pois explorou não somente um maior tempo de rastreio nos testes estáticos, mas cobriu também testes cinemáticos. / The present research evaluates the application of Real Time Kinematics (RTK) positioning in static and kinematic mode for different daily activities and verify the potential to generate a RTK positioning solution. The use of this technology with a low cost system may be useful for different segments, since companies engaged with topographic surveys and construction activities, logistic companies and even public transportation, by offering a solution with more accuracy and precision and can also represent a market opportunity for rural properties, fleet monitoring and map databases update. In order to make feasible this purpose, it was generated a RTK positioning solution using a mobile Global Positioning System (GPS) receiver, a notebook, an smartphone equipped with Global System for Mobile Communication (GSM) device and provided with 3G or wifi connection, the software RTKLib to fix and obtained a fixed positioning and the monitoring stations of the Continuous Monitoring Brazilian Network (Rede Brasileira de Monitoramento Contínuo - RBMC-IP). The software is connected with the receiver GPS u-blox (L1 signal and GPS constellation) which is the responsible for adjust the phase information in a format and size suitable to the data exchange. The main advantage of this solution is that only one person is required to collect the field data and the feasibility of RTK/GSM technique usage in steep topography areas, consequently increasing productivity during projects execution. The results indicate that, depending on the kind of RTK positioning solution generated, fix or float, the positioning obtained accuracy rates lower than 1 meter, however with some sensitivity and variability and precision in the same magnitude for baseline lower than 10 kilometres; while the results for long baselines (higher than 100 kilometres) did not present the same accuracy/precision, as expected. Kinematics tests showed good accuracy prescribing estimation path usage. Besides quantitative and qualitative results, the main contribution of this research was the development of a specific methodology in the area of RTK positioning solution, that brought by statistical tools productivity gains in terms of time collection, equipment and manpower required, since exploited not only a longer time in static tests but also covered kinematic tests.

A literatura científica em Psicologia aponta a necessidade de estudos sobre instrumentos de avaliação psicológica, procurando aperfeiçoá-los como recursos técnicos e garantir a qualidade dos processos psicodiagnósticos. No intuito de contribuir com os esforços de otimização destes instrumentos, o presente estudo buscou elaborar os padrões de respostas de adolescentes para o Questionário Desiderativo, numa abordagem psicodinâmica de análise da produção. Pretendeu-se ainda avaliar a precisão na análise das respostas a este instrumento projetivo, com base no índice de acordo entre examinadores independentes. Para tanto, foram examinadas respostas ao Questionário Desiderativo produzidas por uma amostra de 120 adolescentes com desenvolvimento típico, voluntários, de 15 a 18 anos de idade, distribuídos eqüitativamente em relação ao sexo e à origem escolar, a partir de escolas públicas e particulares de Ribeirão Preto (SP). Os participantes foram selecionados pela ausência, em sua história pessoal, de transtornos sensoriais, cognitivos ou psiquiátricos, avaliados por meio de entrevista inicial. Cada protocolo do Questionário Desiderativo foi codificado às cegas por três examinadores independentes, a partir da proposição avaliativa de Nijamkin e Braude. Foram realizadas análises estatísticas não paramétricas (Mann-Whitney, Qui quadrado e/ou Exato de Fisher), comparando-se inicialmente as respostas fornecidas pelos adolescentes nas catexes positivas e nas negativas e, em seguida, contrapondo-se as variáveis do Desiderativo em função do sexo e da origem escolar. A análise do índice de concordância entre examinadores indicou boa fidedignidade nas análises realizadas, por meio do sistema avaliativo de Nijamkin e Braude, para o Questionário Desiderativo. Foi possível identificar diferenças significativas no padrão de respostas às catexes positivas e negativas, como teoricamente previsto pela técnica. Diferenças significativas também emergiram em função do sexo dos adolescentes em cerca de 20% das variáveis analisadas do Desiderativo, enquanto que a origem escolar (pública X particular) não pareceu influenciar significativamente o desempenho nesta técnica projetiva. Os adolescentes forneceram, em média, de três a quatro respostas a cada parte do Desiderativo, sinalizando a ocorrência de ao menos uma falha ao responder ao instrumento, na maioria dos casos. Foram verificados sinais de bom funcionamento lógico, com predomínio de respostas com nível concreto de organização e sinais de boa distinção entre fantasia e elementos da realidade nos adolescentes examinados. Houve indicadores de maior nível de ansiedade ao responder às catexes negativas, além de sinais de possível tendência do instrumento a induzir a perseveração do reino objeto. Por fim, foram apresentadas as respostas vulgares dos diferentes reinos de vida identificadas no conjunto da produção a esta técnica projetiva. Considera-se que os resultados atuais constituem-se como subsídios científicos para uso do Questionário Desiderativo no contexto sócio-cultural brasileiro, além de oferecer informações acerca do dinamismo psíquico de adolescentes com desenvolvimento típico. / The scientific literature on Psychology points the need of studies on instruments of psychological assessment, in order to improve them as technical devices and to assure the quality of psycho-diagnosis processes. Aiming to contribute with the achievement of these goals, the present study attempted to elaborate the answer patterns of adolescents in the Desiderative Questionnaire, through a psycho-dynamical approach of the production analysis. It was also evaluated the accuracy in the analysis of the answers to this projective instrument, based on the agreement rate among independent examiners. For this objective, the Desiderative Questionnaire was applied to 120 adolescents, volunteers of both genders, without history of disturbances in the development (verified in a preliminary interview), attending both public and private secondary schools in Ribeirão Preto - SP. Their answers in the Desiderative were evaluated by three independent examiners (who didn´t know the identity and other characteristics of the subjects), and based on an adaptation of the evaluation proposed by Nijamkin and Braude. Non-parametric statistical analysis were carried through (Mann-Whitney, Quisquare and/or Fisher´s Exact), comparing initially the adolescents´ answers in positive and negative cathexis and, after that, opposing the Desiderative´s variables according to gender and school origin (public or private). The analysis of the agreement rate among the examiners indicated good accuracy in the analysis, using the Nijamkin and Braude´s evaluative system for the Desiderative Questionnaire. It was possible to identify significant differences in the patterns of the positive and negative answers, as it was theoretically foreseen by this technique. Significant differences were also verified according to gender in about 20% of the Desiderative´s variables analyzed, while the school origin (public or private) did not seem to influence on the answers in this projective technique. The adolescents gave, in average, three or four answers in each part of the Desiderative Questionnaire, indicating the occurrence of at least one flaw in answering the instrument, in most of the cases. Signals of good logical functioning were verified, mostly answers in a concrete level of organization, and signals of good distinction between fantasy and elements of reality among the examined adolescents. There were indicators of higher level of anxiety in answering negative cathexis, and also signals of a possible tendency of the instrument to induce a perseveration in the category object. Finally, the common answers in the different categories identified among the overall answers to this projective technique were presented. These current results offer scientific grounds for the Desiderative Questionnaire´s application in the Brazilian social-cultural context, besides offering information on the psychic dynamics of adolescents with common development.

A acurácia dos diagnósticos de enfermagem é importante para a escolha de intervenções adequadas, mas ainda pouco se conhece sobre os fatores que a influenciam. Objetivos: identificar os fatores preditores da acurácia de diagnósticos de enfermagem; descrever o grau de acurácia dos diagnósticos de enfermagem documentados na prática clínica e testar a concordância intra e entre avaliadores na aplicação da Escala de Acurácia de Diagnósticos de Enfermagem Versão 2. Método: estudo documental realizado num hospital público de ensino da cidade de São Paulo, Brasil. A acurácia dos diagnósticos de enfermagem documentados na admissão de pacientes foi estimada por meio da aplicação da EADE Versão 2, que possui 4 itens para o julgamento da presença, relevância, especificidade e coerência das pistas existentes para o diagnóstico em avaliação. As respostas aos itens são pontuadas e geram um escore final variando de 0 a 13,5 (0 / 1 / 2 / 4,5 / 5,5 / 9 / 10 / 12,5 ou 13,5). A amostra do estudo foi aleatória, composta pelos registros de admissão de 749 pacientes adultos internados na clínica médica ou cirúrgica entre julho de 2005 e junho 2008. Todos os enfermeiros que documentaram as admissões avaliadas forneceram informações de características pessoais e profissionais. Foram computados dados de caracterização dos pacientes que tiveram seus registros analisados. Foram realizados testes de associação entre o grau de acurácia dos diagnósticos e variáveis dos diagnósticos, variáveis dos pacientes e dos registros de admissão e variáveis dos enfermeiros. As variáveis que nos testes de associação com o grau de acurácia obtiveram valores de p 0,20 foram incluídas em modelos de regressão linear múltipla. Uma sub-amostra com 156 admissões foi sorteada para estimar a confiabilidade da escala intra avaliador e entre avaliadores. Resultados: Dos 749 registros de admissão foram avaliados 3.417 diagnósticos documentados por 21 enfermeiros. A maioria dos diagnósticos de enfermagem foi avaliada como altamente acurada (70,4%,) e a média geral da acurácia foi 9,8 (DP =5,6 e variação de 0 a 13,5). As análises de regressão linear múltipla permitiram ajustar três modelos (variáveis dos diagnósticos, variáveis dos pacientes e dos registros de admissão, variáveis dos enfermeiros). O modelo com as variáveis dos diagnósticos mostrou que diagnósticos de baixa frequência (p=0,000), diagnósticos do domínio funcional (p=0,000) e diagnósticos atuais (p=0,000) são preditores de graus mais elevados de acurácia, explicando 28% da variância; o modelo com as variáveis dos pacientes e registros de admissão mostrou que doenças crônicas (p=0,000), internações na clínica médica (p=0,000) e qualidade satisfatória dos registros (p=0,005) são preditores de acurácia mais elevada, com variância explicada de 14%; e o modelo com as variáveis dos enfermeiros mostrou que o relato da presença de conteúdo teórico e prático em diagnóstico de enfermagem na graduação (p = 0,011) foi preditor de graus elevados de acurácia, explicando 26% variância. O valor de Coeficiente de Correlação Intraclasse (ICC) intra avaliadores foi 0,96 e o ICC entre avaliadores foi 0,71 o que confere boa confiabilidade à EADE - Versão 2. Conclusão: O estudo oferece dados empíricos que contribuem para o conhecimento sobre os fatores preditores da acurácia dos diagnósticos de enfermagem. / The accuracy of nursing diagnoses is important in order to select appropriate interventions, however little is known about the factors that influence it. Objectives: To identify the predictors of accuracy of nursing diagnoses; describe the degree of accuracy of nursing diagnoses documented in clinical practice and to test the intra and interrater reliability of the Accuracy Scale for Nursing Diagnosis (NDAS) Version 2. Method: A documental study carried out in a public teaching hospital in São Paulo, Brazil. The accuracy of the nursing diagnoses documented during admission assessment of the patients was estimated by applying the NDAS Version 2, which has four items to judge the presence, relevance, specificity and consistency of the existing cues for a documented diagnosis. The responses to the items were scored and generated a final score ranging from 0 to 13.5 (0/1/2/4.5/5.5/9/10/12.5 or 13.5). The study sample was randomly composed of the admission records of 749 adult patients hospitalized in general medicine or surgical wards between July 2005 and June 2008. Each of the nurses who documented the admissions provided demographic and professional information. Also computed were the data of characteristics of patients who had their records reviewed. Association tests were performed between the degree of accuracy of diagnoses and variables of the diagnoses, variables of the patients and admission records and the variables of the nurses. The variables that obtained p values 0.20 in the association tests with the degree of accuracy were included in multiple regression models. A sub-sample of 156 admission records was randomly selected to estimate inter and intra-raters reliability of the scale. Results: Of the 749 admission records that were evaluated, 3.417 diagnoses were documented by 21 nurses. The majority of the nursing diagnoses were evaluated as highly accurate (70.4%) and average overall accuracy was 9.8 (DP = 5.6) and ranged from 0 to 13.5. Multiple linear regression analysis allows the adjustment of three models (variables of the diagnoses, variables of the patients and admission records and variables of the nurses). The model with variables of the diagnoses showed that diagnoses of low frequency (p = 0.000), diagnoses of the functional domain (p = 0.000) and actual diagnoses (p = 0.000) were predictors of a higher degrees of accuracy, explaining 28% of the variance; the model with variables of patients and admission records showed that chronic diseases (p = 0.000), admissions to the general medical ward (p = 0.000) and a satisfactory quality of the patient records (p=0.005) were predictors of higher accuracy, explaining 14% of the variance; and the model with variables of the nurses showed that reporting presence of theoretical and practical content of nursing diagnosis in the baccalaureate program (p = 0.011) was predictor of higher degrees of accuracy, explaining 26% of the variance. The ICC coefficient of intra and interraters was 0.96 and 0.71 respectfully, therefore demonstrating good reliability of the NDAS Version 2. Conclusion: This study provided empirical data to advance knowledge regarding predictors of the accuracy of nursing diagnoses.

O objetivo do presente estudo foi verificar a acurácia diagnóstica da imagem clínica obtida pela câmera acoplada ao telefone celular, comparada ao diagnóstico clínico presencial e ao diagnóstico histopatológico em tumores palpebrais. Métodos: Pacientes sob demanda espontânea, foram recrutados. Foram incluídos pacientes encaminhados para avaliação e exérese de tumor palpebral benigno ou maligno. Avaliação presencial foi realizada constando de anamnese, avaliação externa macroscópica e biomicroscópica com estabelecimento de diagnóstico clínico. Todos os pacientes tiveram as lesões palpebrais documentadas com um smartphone Samsung S4 (imagens de 4128x 3096 pixels), salvas em formato JPEG. Todas as lesões foram ressecadas e submetidas à exame histopatológico. Três especialistas em Plástica Ocular em outro país fizeram a teleavaliação das imagens na tela de um laptop (2366x768 pixels). Verificou-se a concordância entre o padrão-ouro (histologia) e os diagnósticos presencial e à distância. Resultados: Foram avaliados 75 casos por exame presencial e por imagem. A idade média dos pacientes foi de 66,6 anos com predominância do sexo feminino (44 mulheres). As lesões ocorreram com maior frequência nas pálpebras inferiores (57 casos - 76%). O tamanho médio das lesões foi de 9,36 mm (DP 7,37). Trinta e quatro (45,33%) eram benignas e 41 (54,67%) malignas. O diagnóstico anatomopatológico maligno mais comum foi o carcinoma basocelular com 27 casos (36%) e o benigno mais comum foi o nevus com 10 casos (13,33%). Os examinadores virtuais acertaram cerca de 50% do diagnóstico histológico enquanto o presencial foi de 76%. Quanto ao diagnóstico de malignidade, o estudo mostrou alta concordância da teleavaliação (sensibilidade de 85-90%) - praticamente igual ao exame presencial - 88%. Nas lesões benignas, por telemedicina houve 74-88% de acertos (alta concordância), contra 100% de acertos no exame presencial. A acurácia média via telemedicina do diagnóstico de malignidade de lesão foi de 83% contra 93% do exame presencial. O tamanho da lesão também se relacionou positivamente com diagnóstico de malignidade tanto no exame presencial quanto na teleavaliação. Conclusões: A avaliação de lesões palpebrais usando smartphone e Telemedicina nas condições deste estudo, é viável, sendo alta a concordância para o reconhecimento de tumores palpebrais malignos. Quanto ao diagnóstico histopatológico, o exame à distância foi menos acurado que o exame presencial. Os resultados deste estudo sugerem que a avaliação de tumores palpebrais através da Telemedicina é um bom método que pode ter aplicações práticas em populações com acesso restrito a médicos especialistas, com grandes vantagens para fins de saúde pública / The objective of this study was to check the diagnostic precision of clinical image obtained by the phone camera of smartphones compared to face-toface clinical diagnosis and histopathological diagnosis of eyelid tumors. Methods Patients on spontaneous demand were recruited. We included patients referred to evaluation and resection of benign or malignant eyelid tumors. The face-to-face evaluation was done to establish the clinical diagnosis: anamnesis, external macroscopic evaluation and biomicroscopic exam. Every patient had pictures of eyelid lesions taken with a smartphone Samsung S4 (images of 4128x 3096 pixels) and saved in jpeg format. All lesions were resected and had the histologic evaluation. Three Oculoplastics experts in another city abroad performed images tele evaluation at the laptop screen with a resolution of 2366x768 pixels. We investigated concordance between the gold standard (histology) and the face-to-face and telemedicine diagnosis. Results Seventy-five lesions were evaluated face-to-face and by images. The mean age was 66.6 years, with the predominance of women (44). The lesions were more frequent at lower eyelid (57 cases- 76%). The mean size was 9.36 mm (DP 7.37). Thirty-four (45.33%) were benign and 41 (54.67) malignant. The most frequent malignant histopathological diagnosis was basal cell carcinoma with 27 cases (36%), and the benign was nevus with 10 cases (13.33%). Tele examiners answered correctly 50% of histological diagnosis, and face-to-face examiner matched 76%. The study showed a high correlation between tele evaluation and face- to- face exam at malignity diagnosis (sensibility= 85-90%, mean accuracy = 83.3% against 88% and 93%). At benign lesions, with Telemedicine, there are 74-88% of correct answers against face- to - face 100% hits. Lesion size correlated positively with malignity diagnosis at face - to- face and by telemedicine exam. Conclusions Eyelid lesion evaluation by telemedicine in this study conditions was viable. It showed high concordance to recognize malignant eyelid tumors. However, histological diagnosis was less accurate at telemedicine when compared to face - to- face exam. These results indicate that eyelid tumors evaluation by telemedicine is a suitable method. It can have practical applications in communities where experts are few, so providing advantages at public health

Actuellement, certaines pièces aéronautiques sont usinées par des procédés chimiques efficaces, mais mettant en jeu des produits polluants et dangereux pour les ouvriers qui travaillent à leur contact. Par conséquent, il est impératif de trouver une solution qui serait au minimum aussi compétitive que l'usinage chimique et beaucoup moins risquée pour l'homme et l'environnement. Dans cette optique, l'usinage à grande vitesse (UGV) constitue une alternative sérieuse et efficace. Depuis des années, les machines-outils à structure parallèle ont fait leur preuve dans l'UGV. C'est donc dans ce contexte d'usinage des pièces aéronautiques de grandes longueurs et de formes complexes que de nouvelles architectures parallèles sont proposées. Dans ce manuscrit, d'après les contraintes de la tâche, nous sélectionnons une large famille de cinématiques parallèles que nous modelions de manières générique et complète. Nous utilisons cette modélisation pour différentes propositions de mécanismes : 4 degrés de liberté avec plateforme mobile articulée, 4 degrés de liberté avec plateforme rigide et 5 degrés de liberté avec redondance et plateforme articulée. Ces travaux ont conduit à la réalisation d'un prototype qui a validé le concept d'une de ces machines. / Currently, some aeronautical parts are milled by efficient chemical processes, but involving products pollutants and hazardous for workers working on their contact. Therefore, it is imperative to find a solution that would be at least as efficient as chemical milling and much less risky for humans and the environment. It is recognized in the literature that high-speed milling is a serious and effective alternative for the above mentioned problems. Moreover, for years, machine tools based on parallel structure have proven their utility in high-speed milling. In the context of milling of lengthy and complex shaped aeronautical parts, new parallel architectures are proposed. In this manuscript, according to the constraints of tasks, we select a large family of parallel kinematic mechanism that we modelize in a generic and complete way. We use these models for different propositions of mechanisms: 4 degrees of freedom with articulated platform, 4 degrees of freedom with rigid platform and 5 degrees of freedom with actuation redundancy and articulated platform. This work leads to the realization of a prototype that validates the concept of one of these machines.

Le problème de non-reproductibilté numérique surgit dans les calculs parallèles principalement à cause de la non-associativité de l’addition flottante. Les environnements parallèles changent dynamiquement l’ordre des opérations. Par conséquent, les résultats numériques peuvent changer d’une exécution à une autre. Nous garantissons la reproductibilité en étendant autantque possible l’arrondi correct à des séquences de calculs plus importantes que les opérations arithmétique exigées par le standard IEEE-754. Nous introduisons RARE-BLAS une implémentation des BLAS qui est reproductible et précise en utilisant les transformations sans erreur et les algorithmes de sommation appropriés. Nous présentons dans cette thèsedes solutions pour le premier (asum, dot and nrm2) et le deuxième (gemv and trsv) niveaux des BLAS. Nous développons une implémentation de ces solutions qui utilise les interfaces de programmation parallèles (OpenMP et MPI) et les jeu d’instructions vectorielles. Nous comparons l’efficacité de RARE-BLAS à une bibliothèque optimisé (Intel MKL) et à des solutionsreproductibles existantes. / Numerical reproducibility failures rise in parallel computation because floating-point summation is non-associative. Massively parallel systems dynamically modify the order of floating-point operations. Hence, numerical results might change from one run to another. We propose to ensure reproducibility by extending as far as possible the IEEE-754 correct rounding property to larger computing sequences. We introduce RARE-BLAS a reproducible and accurate BLAS library that benefits from recent accurate and efficient summation algorithms. Solutions for level 1 (asum, dot and nrm2) and level 2 (gemv and trsv) routines are designed. Implementations relying on parallel programming API (OpenMP, MPI) and SIMD extensions areproposed. Their efficiency is studied compared to optimized library (Intel MKL) and other existing reproducible algorithms.

Whether you are trying to impress others, communicate efficiently, develop trust with your teammates or followers, or choose key partners to work with, you need to accurately anticipate what others think of you. This process, which is called meta-perception (Laing, Phillipson, & Lee, 1966), is thus crucial for your day-to-day life, and also at work. Still, meta-perception fails to be considered as a key individual process in the field of Organizational Behavior – OB. Therefore, this dissertation aims to gather empirical and theoretical evidence showing that meta-perception is an important process for organizational life. Thus, this dissertation focuses on the process itself (i.e. meta-perception and meta-accuracy), its antecedents and its outcomes, applied to social evaluation situations that are common at work. First, I aim to provide the bases of a consensual and context-specific approach of meta-perception enabling its study in the field of OB by differentiating the manifestations of meta-accuracy and by using statistical methods that consider both components of meta-accuracy, namely meta-perception and other-perception (Edwards, 1995, 2002; Shanock, Baran, Gentry, Pattison, & Heggestad, 2010). Second, I aim to examine whether meta-perception, its bias and its accuracy are affected by specific antecedents (i.e. narcissism and leadership style) that have received growing attention in OB. Third, I aim to study the effect of meta-perception and its accuracy on outcomes usually influenced by person perception, such as performance and hireability, and characterized by social evaluation. To achieve these aims, four research projects were performed (i.e. three empirical projects, gathering eight studies, and one theoretical project). The first project examines the link between narcissistic tendencies and a specific form of meta-perception. The second project tests the effect of leadership style on the accuracy of meta-perception and whether this accuracy has a positive impact on task performance. The third project provides a theoretical framework on the advantages of including meta-perception of performance in Multi-Source Feedback. The fourth project tests whether meta-perception and its accuracy play a role in hireability. These research projects led to key contributions to the literature on meta-perception and its accuracy, narcissism, leadership and the field of OB. First, this research contributes to the literature on meta-perception by proposing a context-specific approach of meta-perception. This dissertation specifically justifies the need to (a) differentiate the aspects on which meta-perception focuses (e.g. emotions, behaviors, skills, traits), (b) study meta-perception as related to self-perception and other-perception to gain knowledge about the bias and accuracy of meta-perception, and (c) examine the role of meta-accuracy in predicting organizational behaviors according to its three dimensions (i.e. size, direction, and favorability). Second, it contributes to the literature on leadership by studying the effect of narcissism and leadership style on meta-perception through the assessment individuals’ egocentrism and flexibility. Third, it contributes to the OB field and meta-accuracy literature by showing that the three dimensions of meta-accuracy (i.e. size, direction and favorability) have specific effects on task performance, professional development and hireability. In fine, this dissertation constitutes a well-documented plea for the integration and recognition of meta-perception as a key process in Organizational Behavior studies. / Doctorat en Sciences économiques et de gestion / info:eu-repo/semantics/nonPublished

Submitted by Jadson Francisco de Jesus SILVA (jadson@uefs.br) on 2018-07-10T21:32:58Z No. of bitstreams: 1 Disserta??o final.pdf: 1336744 bytes, checksum: 0ff78b681298bc287f0b8d2f291a3106 (MD5) / Made available in DSpace on 2018-07-10T21:32:58Z (GMT). No. of bitstreams: 1 Disserta??o final.pdf: 1336744 bytes, checksum: 0ff78b681298bc287f0b8d2f291a3106 (MD5) Previous issue date: 2016-06-10 / Intestinal constipation is the most common intestinal motility disorder in the world. The objective of the current study was to evaluate the prevalence, associated factors and reliability of data on intestinal constipation in children at six months of age, according to the maternal impression; Having as main products two articles: "Intestinal constipation in children at six months of age, according to maternal report of arrested gut" and "Prevalence and factors associated with intestinal constipation at six months of age". This was a cross-sectional analysis of a cohort of live births, who followed mother-infant pairs through monthly home visits in the first six months of life. The power of the current study was 91.36%. The dependent variable was constipation of the child reported according to the maternal impression. The other variables were related to the maternal, infant and eating habits of the child. The database was entered in the statistical software SPSS (Statistical Package for the Social Sciences) version 10.0, later validated in the statistical software EPIDATA and analyzed with the help of the program STATA, version 12.0. Pearson's chi-square test was used, and their respective 95% confidence intervals (95% CI). The multivariate analysis was performed using Poisson regression in a hierarchical analysis model, adopting the significance level of 20% (p <0.20), and maintaining in the final model the variables that showed association with the dependent variable At the level of statistical significance p <0.05. To evaluate the concordance between the maternal impression and the characteristics of the intestinal habit, the kappa index was used. Among the 1,134 infants studied, 12.3% of the population had intestinal constipation at six months of age. In the bivariate analyzes, there was statistical significance for the liquidized food variable (p = 0.00) and after multivariate analysis it was verified that these foods were a risk factor for intestinal constipation RP = 1.50 (95% CI: 1.07 -2.11, p = 0.00). According to the kappa index, the agreement between the maternal impression that the child was evacuating every day was considered moderate (kappa = 0.55); (Kappa = 0, 18) and the stool appearance was substantial (kappa = 0.67). This study found prevalence of functional constipation in children at six months of age, similar to other studies developed in Brazil and the world, based on the maternal report. It is noteworthy that children who consumed liquefied foods were more likely to develop intestinal constipation. Regarding the reliability of the maternal impression, it was concluded that the characteristics of greater agreement corresponded to the appearance of hardened stools and to the daily frequency of bowel movements, emphasizing that the maternal report on the attached intestine can be a good indicator to recognize cases of intestinal constipation Six months of age. This project was approved by the Research Ethics Committee - CEP / UEFS - Protocol 077/2006 and the Higher Council for Teaching, Research and Extension - CONSEPE / UEFS - Protocol 154/2007, CAAE - 49106715.8.0000.0053. / A constipa??o intestinal ? o dist?rbio de motilidade intestinal mais frequente em todo o mundo. O objetivo do atual estudo foi avaliar a preval?ncia, os fatores associados e a confiabilidade dos dados sobre a constipa??o intestinal de crian?as aos seis meses de idade, conforme a impress?o materna; tendo como principais produtos dois artigos: ?Constipa??o intestinal em crian?as aos seis meses de idade, segundo relato materno de intestino preso? e ?Preval?ncia e fatores associados ? constipa??o intestinal aos seis meses de idade?. Tratou-se de uma an?lise transversal de uma coorte de nascidos vivos, que seguiu duplas m?e-filho mediante visitas domiciliares mensais, nos primeiros seis meses de vida. O poder do atual estudo foi de 91,36%. A vari?vel dependente foi constipa??o intestinal da crian?a relatada segundo a impress?o materna. As demais vari?veis foram referentes ?s caracter?sticas maternas, infantis e aos h?bitos alimentares da crian?a. O banco de dados foi digitado no software estat?stico SPSS (Statistical Package for the Social Sciences) vers?o 10.0, validados posteriormente no software estat?stico EPIDATA e analisados com ajuda do programa STATA, vers?o 12.0. Foi utilizado teste de qui-quadrado de Pearson, e seus respectivos intervalos de 95% de confian?a (IC95%). A an?lise multivariada foi realizada por meio de regress?o de Poisson em um modelo de an?lise hier?rquica, adotando-se o n?vel de signific?ncia de 20% (p < 0,20), e mantidas no modelo final as vari?veis que apresentaram associa??o com a vari?vel dependente em n?vel de signific?ncia estat?stica p<0,05. Para avaliar a concord?ncia entre a impress?o materna e as caracter?sticas do h?bito intestinal foi utilizado o ?ndice kappa. Dentre os 1.134 lactentes estudados, 12,3% da popula??o apresentou constipa??o intestinal aos seis meses de idade. Nas an?lises bivariadas, houve signific?ncia estat?stica para a vari?vel dos alimentos liquidificados (p=0,00) e ap?s an?lise multivariada verificou-se que esses alimentos foram fator de risco para a constipa??o intestinal RP=1,50 (IC95%:1,07?2,11; p=0,00). Segundo o ?ndice kappa, a concord?ncia entre a impress?o materna de que a crian?a evacuava todos os dias foi considerada moderada (kappa=0,55); quanto ? frequ?ncia de evacua??es semanais, a concord?ncia foi ligeira (kappa=0,18) e quanto ao aspecto das fezes, foi substancial (kappa=0,67). Este trabalho encontrou preval?ncia de constipa??o funcional de crian?as aos seis meses de idade, similar a outros estudos desenvolvidos no Brasil e no mundo, com base no relato materno. Destaca-se que as crian?as que consumiam alimentos liquidificados tinham mais chances de desenvolver constipa??o intestinal. Quanto ? confiabilidade da impress?o materna, conclui-se que as caracter?sticas de maior concord?ncia foram correspondentes ao aspecto de fezes endurecidas e ? frequ?ncia di?ria de evacua??es, salientando que o relato materno sobre o intestino preso pode ser um bom indicador para reconhecer casos de constipa??o intestinal aos seis meses de idade. Esse projeto foi aprovado pelo Comit? de ?tica em Pesquisa - CEP/UEFS - Protocolo 077/2006 e Conselho Superior de Ensino, Pesquisa e Extens?o - CONSEPE/UEFS - Protocolo 154/2007, CAAE - 49106715.8.0000.0053.

O presente trabalho teve como objetivo caracterizar o sinal cerebral de bovinos quanto a sua complexidade e também a sua extensividade. Para tal foi necessário formar uma base de dados de sinais cerebrais, estes sinais foram adquiridos de novilhas da raça holandesa, na cidade de Pirassununga/SP (latitude 21°59\'46\" Sul e a uma longitude 47°25\'33\" Oeste, altitude de 627 metros) em duas situações: (1) câmara climática (gaiolas de contenção) em junho de 2005 e (2) piquete experimental (animais com liberdade de movimentos), entre outubro e dezembro de 2007. Foram utilizados eletrodos superficiais, fixos a cabeça dos animais por meio de cola sintética, a freqüência de amostragem foi de 120 Hz. Os sinais foram avaliados visualmente e os trechos livres de artefatos foram selecionados para formação da base de dados. Simultaneamente foram considerados temperatura e umidade do ambiente (para o calculo da entalpia), momento da intervenção da equipe junto aos animais e alguns comportamentos apresentados pelos animais durante a aquisição dos sinais. O algoritmo utilizado para calculo da complexidade C(n) mostrou-se eficiente na caracterização de seqüências conhecidas. O método desenvolvido para determinar o parâmetro q quando utilizado para caracterizar um mapa logístico, no limite de comportamento caótico, mostrou que q permanece constante mesmo quando se alteram as condições iniciais, ou seja, q e uma característica do sistema e o método e capaz de verificar este fato. Quando aplicados a base de dados, verificou-se que o parâmetro q variou mais em função de manipulação do animal do que em relação a entalpia, ou seja, o estresse de manipulação se sobrepôs ao estresse térmico, isso pode se verificar mais claramente nos experimentos realizados em câmara climática com os animais mantidos em gaiolas. As variações na complexidade C(n) (entre 0,2 e 1,0) permitem afirmar que os sinais de bovinos apresentam, alem de componentes oscilatórias, componentes caóticas. A metodologia proposta indicou que e possível caracterizar sinais de bovinos quanto a sua extensividade, uma vez que q tende a apresentar valores menores logo após manipulação dos animais. / This study aimed to characterize the bovine brain electrical activity as its complexity and also to this extensiveness. In order to make it possible a database of brain signals was formed. These signals were acquired from Holstein heifers in the city of Pirassununga / SP (latitude 21°59\'46\" south and a longitude 47°25\'33\" west, altitude of 627 meters ) in two situations: (1) climatic chamber (cage containment) in June 2005 and (2) experimental pasture (animals with freedom of movement) between October and December 2007. We used surface electrodes, fixed to the head of the animals by synthetic glue, the sampling frequency was 120 Hz. Signals were evaluated visually and free of artifacts signals were selected to take part in the database. Both, were considered the temperature and humidity from environment (for the calculation of the enthalpy), It was also considered team intervention with the animals and some behaviors displayed by animals during signals acquisition. The algorithm used to calculate the complexity C(n) was efficient in the characterization of known sequences. The method developed to determine the q parameter when used to describe a logistic map in the limit of chaotic behavior, showed that q remains constant even when changing the initial conditions, ie, q is a characteristic of the system and developed methodology is able to verify this fact. When applied to the database, it was found that the q parameter varied more according to manipulation of the animal than on the enthalpy, ie the stress of manipulation overrides to heat stress, this can be verified more clearly in the experiments performed in climatic chamber with the animals kept in cages. Changes in complexity C(n) (between 0.2 and 1.0) show that the animals exhibit signs of oscillatory components in addition to chaotic components. The proposed methodology showed that it is possible to identify cattle signs as to its extensiveness, as q tends to produce lower values after handling animals.