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Redução automática versus manual da pressão de suporte no desmame de pacientes em pós-operatório: estudo controlado e randomizado; Automatic versus manual pressure support reduction in the weaning of post-operative patients: a randomized controlled trial

Taniguchi, Corinne
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 29/09/2008 PT
Relevância na Pesquisa
45.83%
INTRODUÇÃO: A redução automática da pressão de suporte (PS) baseada na freqüência respiratória, ou MRV (mandatory rate ventilation) é um modo ventilatório disponível no ventilador Taema-Horus. A hipótese do estudo é que o MRV utilizado no desmame é tão efetivo quanto o desmame manual em pacientes em pós-operatório na unidade de terapia intensiva (UTI). MÉTODOS: Ao chegar à UTI, após a cirurgia, os pacientes eram randomizados em dois grupos: desmame manual ou automático. O desmame manual consistiu na redução manual da PS a cada 30 minutos mantendo a relação freqüência respiratória sobre volume corrente menor do que 80, até a PS de 5-7 cmH2O. O desmame automático baseou-se na freqüência respiratória alvo de 15 respirações por minuto (o ventilador diminui automaticamente, a PS em 1 cmH2O a cada 4 ciclos respiratórios, se o paciente mantiver a freqüência respiratória abaixo deste valor). O objetivo primário do estudo foi comparar a duração do processo de desmame. Secundariamente verificamos o nível de PS, freqüência respiratória, volume corrente, índice de freqüência respiratória sobre volume corrente, pressão positiva expiratória final, fração inspirada de oxigênio e saturação de oxigênio requeridos durante o processo de desmame. Verificamos também necessidade de reintubação e necessidade de ventilação não invasiva nas primeiras 48 horas após a extubação. RESULTADOS: Não houve diferença estatística significativa entre os 53 pacientes selecionados em cada grupo quanto ao sexo (p=0541)...

Manual para manutenção de estradas com revestimento primário; Manual para manutenção de estradas de revestimento simples

Fattori, Bernardo José
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Trabalho de Conclusão de Curso Formato: application/pdf
POR
Relevância na Pesquisa
45.65%
O presente trabalho é um manual elaborado para manutenção de estradas não pavimentadas na região central do Estado do Rio Grande do Sul, as quais representam cerca de 93% da malha rodoviária desta região. Neste manual, é apresentado como deve ser a estrutura de uma estrada de revestimento primário para apresentar boas condições em termos de capacidade de suporte e de trafegabilidade (conforto e segurança). Também são apresentados os principais problemas que ocorrem nessas rodovias e algumas sugestões para a manutenção do pavimento. A drenagem recebeu um capítulo especial, pois grande parte dos problemas nas rodovias de revestimento simples é ocasionado pela presença de água, principalmente oriunda de precipitações. Também é visto a composição dos materiais utilizados na estrada rural: granulomentria e função que cada dimensão possui na constituição da mistura. Estudos realizados durante a elaboração do manual revelam que algumas considerações devem ser levadas em conta para realizar a construção e manutenção das rodovias de estradas de terra especificamente na Região Central do Estado, como por exemplo acrescentar materiais de diferentes graunlometrias ao solo retirado de jazidas. Na maioria dos casos...

Construção e validação de indicadores de qualidade no cuidado ao paciente crítico neurológico; Construction and validation of quality indicators in the care of the neurocritical patient

Elaine Aparecida Silva de Morais
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 20/01/2014 PT
Relevância na Pesquisa
45.58%
Introdução: A qualidade da assistência à saúde tem sido foco de discussões e consequentemente de elaboração e implantação de programas que visam à melhoria dos serviços. Não é possível somente propagar a existência da qualidade, é necessário, portanto evidenciá-la por meio de indicadores confiáveis. O propósito deste estudo é desenvolver indicadores para avaliação do cuidado a pacientes críticos neurológicos. Método: Estudo de desenvolvimento metodológico de elaboração e validação de indicadores de avaliação em saúde com teor investigativo dos métodos de obtenção, organização e análise de dados, validação de instrumentos e técnicas de pesquisas. Foi desenvolvido a partir da escolha do ponto do cuidado ao paciente crítico neurológico. O processo de validação se deu através da metodologia de validação opinativa, onde sete experts participaram da análise dos conteúdos através de um manual operacional. Resultados: O parecer dos experts compreendeu a análise e julgamento do Manual Operacional dos indicadores propostos; do conteúdo de cada item de avaliação. Os resultados indicaram que todos foram considerados válidos em relação ao percentual de concordância ( Content Validity Index ¿ CVI) e em relação a representatividade da medida e a clareza dos itens de verificação. Conclusão: Considerando ¿ se os resultados obtidos no estudo é possível o estabelecimento de indicadores confiáveis para avaliação do cuidado proposto e estabelecer a qualidade do serviço prestado. A metodologia de validação possibilita uma alternativa para tornar medidas de avaliação seguras. A partir de pressupostos teóricos dos indicadores...

The Structure of Diagnostic and Statistical Manual of Mental Disorders (4th Edition, Text Revision) Personality Disorder Symptoms in a Large National Sample

Trull, Timothy J.; Vergés, Alvaro; Wood, Phillip K.; Jahng, Seungmin; Sher, Kenneth J.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
45.5%
We examined the latent structure underlying the criteria for DSM–IV–TR (American Psychiatric Association, 2000, Diagnostic and statistical manual of mental disorders (4th ed., text revision). Washington, DC: Author.) personality disorders in a large nationally representative sample of U.S. adults. Personality disorder symptom data were collected using a structured diagnostic interview from approximately 35,000 adults assessed over two waves of data collection in the National Epidemiologic Survey on Alcohol and Related Conditions. Our analyses suggested that a seven-factor solution provided the best fit for the data, and these factors were marked primarily by one or at most two personality disorder criteria sets. A series of regression analyses that used external validators tapping Axis I psychopathology, treatment for mental health problems, functioning scores, interpersonal conflict, and suicidal ideation and behavior provided support for the seven-factor solution. We discuss these findings in the context of previous studies that have examined the structure underlying the personality disorder criteria as well as the current proposals for DSM-5 personality disorders.

Recurrent Idiopathic Catatonia: Implications beyond the Diagnostic and Statistical Manual of Mental Disorders 5th Edition

Caroff, Stanley N.; Hurford, Irene; Bleier, Henry R.; Gorton, Gregg E.; Campbell, E. Cabrina
Fonte: Korean College of Neuropsychopharmacology Publicador: Korean College of Neuropsychopharmacology
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
55.5%
We describe a case of recurrent, life-threatening, catatonic stupor, without evidence of any associated medical, toxic or mental disorder. This case provides support for the inclusion of a separate category of “unspecified catatonia” in the Diagnostic and Statistical Manual of Mental Disorders 5th edition (DSM-5) to be used to classify idiopathic cases, which appears to be consistent with Kahlbaum’s concept of catatonia as a distinct disease state. But beyond the limited, cross-sectional, syndromal approach adopted in DSM-5, this case more importantly illustrates the prognostic and therapeutic significance of the longitudinal course of illness in differentiating cases of catatonia, which is better defined in the Wernicke-Kleist-Leonhard classification system. The importance of differentiating cases of catatonia is further supported by the efficacy of antipsychotics in treatment of this case, contrary to conventional guidelines.

Human-automation collaboration : decision support for lunar and planetary exploration

Márquez, Jessica J., 1976-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 225, [1] p.
ENG
Relevância na Pesquisa
45.65%
Balancing task allocation between humans and computers is crucial to the development of effective decision support systems. This thesis investigates the appropriate balance between humans and automation for geospatial path problem solving within the high-risk domain of human planetary surface exploration, where decisions are time critical and humans must adapt to uncertainty. In order to develop flexible and robust decision support systems for Lunar and planetary exploration, human-automation role allocations are examined to understand how humans conduct complex optimizations under different degrees of automated assistance. A work domain analysis of human planetary extravehicular activities (EVA) resulted in a framework for human-robotic planning, including key input variables, constraints, and outputs. Based on this analysis, a prototype path planning aid was developed. Under investigation was the use of partial automatic path generation and a visualization called levels of equal cost (LOEC, an aggregate cost map). Human-in-the-loop testing was employed to understand the effects of the automated assistance and different visualizations on path planning performance across multivariate cost functions. In two separate experiments, participants were tasked to make obstacle-free...

Optimization of chemical reagent storage and distribution at Novartis Institutes for BioMedical Research

Bedford, Jordan M. (Jordan Mark)
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 87 p.
ENG
Relevância na Pesquisa
45.39%
The Novartis Institutes for BioMedical Research is the drug discovery arm of Novartis Pharmaceuticals. Drug discovery is generally considered to be the primary driver for success in the pharmaceutical industry. Success in the early stages of drug discovery relies on dependable, innovative, disease related high-throughput screening of biological compounds and the creation of a screening deck of highly diverse, proprietary chemical compounds. In contrast with many of its peers, Novartis relies strongly on combinatorial chemistry to populate its screening deck. The Chemical Libraries (CLI) group is responsible for this approach at Novartis and delivers more than 100,000 compounds per year to the Novartis Compound Archive. Since the introduction of high-throughput screening and combinatorial chemistry techniques, the bottleneck in many drug discovery processes has shifted to the roles that support these high-volume techniques. The aim of this thesis is to provide a general collection of short and long-term suggestions for process improvement in the chemical supply process. This process includes compound search and ordering, order fulfillment, and compound delivery, was investigated.; (cont.) The chemical supply process is responsible for delivering compounds to chemists that would otherwise cost hundreds of dollars per compound with a delay of between one and four weeks...

Update of the Country Procurement Assessment Review

Republic of Mozambique; World Bank
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
EN_US
Relevância na Pesquisa
45.39%
This Country Procurement Assessment Review (CPAR) update is conducted jointly by the Mozambique Government, the World Bank (Bank), the African Development Bank (AfDB), and the donor community with a view to update the diagnostic work carried out in 2002. The update is considered highly opportune in view of the progress achieved since the last review and in consideration of the increased Government focus on monitoring the performance of Public Financial Management (PFM) reforms, including public procurement. In this context, the objectives of the CPAR have been defined as follows: (i) to assess the public procurement systems using OECD DAC Methodology, (ii) to recommend a monitoring mechanism to measure procurement systems compliance/performance and progress toward acceptable international standards, and (iii) to identify the areas of opportunity for improvement and recommend an action plan.

Large Country-Lot Quality Assurance Sampling : A New Method for Rapid Monitoring and Evaluation of Health, Nutrition and Population Programs at Sub-National Levels

Hedt, Bethany L.; Olives, Casey; Pagano, Marcello; Valadez, Joseph J.
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
EN_US
Relevância na Pesquisa
45.39%
Sampling theory facilitates development of economical, effective and rapid measurement of a population. While national policy maker value survey results measuring indicators representative of a large area (a country, state or province), measurement in smaller areas produces information useful for managers at the local level. It is often not possible to disaggregate a national survey to obtain local information if that was not the intent of the original survey design. Cluster sampling is typically used for national or large area surveys because sampling in clusters lowers the cost of a survey. Lot Quality Assurance Sampling (LQAS) is used to measure results at a local level, since it requires small random samples and produces results useful to local managers. However, current LQAS methodology requires all local areas (strata) be included in the survey in order to be aggregated to produce point estimates for the nation or state. In large countries it is not feasible to sample all strata for logistical and financial reasons. This paper resolves this problem by presenting Large Country (LC)-LQAS...

Multiple comorbidities of 21 psychological disorders and relationships with psychosocial variables: a study of the online assessment and diagnostic system within a web-based population

AL-Asadi, Ali M.; Klein, Britt; Meyer, Denny
Fonte: Journal of Medical Internet Research Publicador: Journal of Medical Internet Research
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
55.54%
BACKGROUND: While research in the area of e-mental health has received considerable attention over the last decade, there are still many areas that have not been addressed. One such area is the comorbidity of psychological disorders in a Web-based sample using online assessment and diagnostic tools, and the relationships between comorbidities and psychosocial variables. OBJECTIVE: We aimed to identify comorbidities of psychological disorders of an online sample using an online diagnostic tool. Based on diagnoses made by an automated online assessment and diagnostic system administered to a large group of online participants, multiple comorbidities (co-occurrences) of 21 psychological disorders for males and females were identified. We examined the relationships between dyadic comorbidities of anxiety and depressive disorders and the psychosocial variables sex, age, suicidal ideation, social support, and quality of life. METHODS: An online complex algorithm based on the criteria of the Diagnostic and Statistical Manual of Mental Disorders, 4th edition, Text Revision, was used to assign primary and secondary diagnoses of 21 psychological disorders to 12,665 online participants. The frequency of co-occurrences of psychological disorders for males and females were calculated for all disorders. A series of hierarchical loglinear analyses were performed to examine the relationships between the dyadic comorbidities of depression and various anxiety disorders and the variables suicidal ideation...

Small group peer support for GPs treating mental health problems

Wilson, I.; Howell, C.
Fonte: Royal Australian College of General Practitioners Publicador: Royal Australian College of General Practitioners
Tipo: Artigo de Revista Científica
Publicado em //2004 EN
Relevância na Pesquisa
45.54%
Peer support groups are a mutual aid system in which the facilitator helps group members to help each other. General practice peer support is seen as the provision of support in small groups by general practitioner colleagues. As part of the Better Outcomes in Mental Health Care Initiative, funding was made available to develop a unique model of peer support for GPs involved in mental health care. It aimed to meet the needs of GPs for support, sharing of knowledge and skills, ongoing education and skills development, while fostering self care. The model involved a GP facilitator training program and manual, which is now available for wider use.; Ian Wilson; Cate Howell; Copyright © 2004 Australian College of General Practitioners Copyright to Australian Family Physician. Reproduced with permission. Permission to reproduce must be sought from the publisher, The Royal Australian College of General Practitioners.

Social factors associated with Major Depressive Disorder in homosexually active, gay men attending general practices in urban Australia

Mao, L.; Kidd, M.; Rogers, G.; Andrews, G.; Newman, C.; Booth, A.; Saltman, D.; Kippax, S.
Fonte: Public Health Assoc Australia Inc Publicador: Public Health Assoc Australia Inc
Tipo: Artigo de Revista Científica
Publicado em //2009 EN
Relevância na Pesquisa
45.57%
OBJECTIVES: Social factors associated with Major Depressive Disorder (MDD) were identified among gay men attending high HIV caseload general practices in Sydney and Adelaide. METHODS: Men who visited four participating practices were invited to self-complete a survey. A self-screening tool (PHQ-9), based on the Diagnostic and Statistical Manual of Mental Disorders, version four (DSM-IV), was used to measure depressive disorders. RESULTS: The rate of MDD (PHQ-9 score 10 or above) among the 195 HIV-positive gay men was significantly higher than that among the 314 non-HIV-positive gay men (31.8% vs 20.1%, p=0.002). Current MDD was independently associated with younger age, lower income, recent major adverse life events, adopting denial and isolation as coping strategies, less social support, less gay community involvement and recent sexual problems. HIV-status, however, was not independently associated with MDD. CONCLUSION: Socio-economic hardship, interpersonal isolation and personal withdrawal were significantly and independently associated with major depression in this population of gay men. IMPLICATIONS: The study provides further evidence of health inequity affecting gay men in Australia. Structural health promotion approaches focused on homophobia and discrimination...

An evaluation of contingency contracting: past, present, and future

Starr, Stephen; Luse, Carey; Madeline, Christopher; Smith, Landon
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Formato: 79 p. : ill. ; 28 cm.
Relevância na Pesquisa
45.4%
MBA Professional Report; The purpose of this study is to identify problems that contingency contracting officers have faced in past contingencies, what problems they are facing in current contingencies, and what problems they are likely to face in the future as the nature of warfare changes in order to increase their efficiency and effectiveness. This effort was accomplished by conducting a historical analysis of contingency contracting from 1775 up to today's Operation Iraqi Freedom, with special emphasis placed on contingencies between 1990 and 2005. An evaluation of the generations of war was conducted to determine what challenges contingency contracting officers may face in the future. The results of this study revealed four main problem areas that hinder a contingency contracting officer's efficiency and effectiveness. These four areas are (1) Policy, (2) Planning, (3) Organization, and (4) Training. This study then analyzed each area to identify how it was hindering the contingency contracting officer. Recommendations ranged from developing a Joint Contingency Contracting Operations Manual to adopting a new contingency contracting structure based on the Yoder Three-Tier Model.; US Army (USA) author

External Trunk Support with Industrial Benchwork

Damecour, CAROLINE
Fonte: Quens University Publicador: Quens University
Tipo: Tese de Doutorado
EN; EN
Relevância na Pesquisa
45.53%
Standing at a workbench is required for manual work including sorting and assembly. When work heights and reach distances are not matched to stature or arm length, the trunk assumes a partially bent position, which increases the postural effort required to stand or to reach to far distances. As a result, the biomechanical load on the lumbar spine is raised, which contributes to a higher risk for back pain. In ergonomics, assistive devices are being developed to counter this effect. A new leaning device was tested in the laboratory with forward-bent standing and reaching where the trunk was bent forward and twisted to reach to a far target 45° from the center. This device supported the trunk at the upper chest. With leaning, back muscle activity decreased by ~ 60% with forward-bent standing and ~ 23-30% with the off-center reach, depending on reach height. Because leaning changed how standing remained balanced, ~12° less bending was required to reach the target. Therefore, upper-trunk support may be helpful for benchworkers when ergonomic design is not possible; some product development and testing is still needed to provide the right amount of support at the right time and to ensure there is no rib joint irritation. An interesting outcome from these previous studies was related to workers’ posture when they leaned against a workbench that was adjusted for heavier work (hip height). Low back muscle activity was unchanged with forward-bent standing...

Construção e validação de ferramenta virtual em tratamento racional de Diabetes mellitus; Development and validation of virtual tool for rational treatment of Diabetes mellitus

Silva, Eldeci Cardoso da
Fonte: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ensino na Saúde (FM); Faculdade de Medicina - FM (RG) Publicador: Universidade Federal de Goiás; Brasil; UFG; Programa de Pós-graduação em Ensino na Saúde (FM); Faculdade de Medicina - FM (RG)
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
45.5%
Virtual Clinical cases are effective interactive tools for assessing clinical skills, simulating various aspects of doctor patient interaction. The aims of this study were to develop and psychometrically validate a virtual tool to assess knowledge about the diagnosis and rational treatment of diabetes mellitus, based on its pathophysiology, in a computer graphical user interface, and to propose a model of support for teaching, in order to promote Telecare and Tele-education. This was a methodological development study with a quantitative approach. The virtual clinical cases were applied to a group of 14 doctors from a universe of 60 Endocrinologists (experts) and to another group of 72 third-year medical school students. The process followed the guidelines for the evaluation of psychometric properties with descriptive and inferential analyses. For reliability analysis, Cronbach's alpha was applied to expert, student and all-group questionnaires (,890: ,606: ,770). The difference in scores between experts and students was highly significant by Friedman (p > 0.01) and Wilcoxon (p > 0.001) tests. From the analysis of the scores, a manual for regulation of VCC and a graphical interface in virtual clinical case format (simulation) were created...

Um novo modelo de manual de controlo interno para a Direção Regional de Agricultura de Lisboa e Vale do Tejo

Arzileiro, Ana Cristina Vieira Dias da Piedade
Fonte: Instituto Universitário de Lisboa Publicador: Instituto Universitário de Lisboa
Tipo: Dissertação de Mestrado
Publicado em //2014 POR
Relevância na Pesquisa
45.39%
Mestrado em Administração Pública; Nos últimos anos, as questões relacionadas com a contabilidade pública têm sido alvo de grande reflexão e análise em diversos Países da União Europeia. Em Portugal o processo de reformar e modernizar a Administração Pública, iniciou-se nos anos 80, vindo a intensificar-se com a Reforma da Administração Financeira do Estado (RAFE), alicerçada com a publicação Lei de Bases da Contabilidade Pública e a reforma do Tesouro. O processo de modernização visa uma melhoria na utilização dos recursos financeiros disponíveis, harmonizando novas ferramentas de gestão aos diversos níveis da Administração. Foi com a publicação do Plano Oficial de Contabilidade Pública, em 1997, que a reforma da contabilidade pública se sedimentou criando as condições para a integração consistente da contabilidade orçamental, patrimonial e de custos, numa contabilidade moderna, que constitua um instrumento de apoio á gestão das entidades públicas, permitindo o controlo do cumprimento da legalidade e o controlo orçamental, informação sobre a situação financeira e patrimonial e o cálculo e análise dos custos e proveitos das atividades, a que se acresce a introdução do princípio do acréscimo...

Análisis crítico a las formas de representación del estudiante y el profesor en el manual de convivencia de la escuela Normal Superior de Ibagué

Bermúdez Sánchez, Juan Gabriel
Fonte: Ibagué : Universidad del Tolima, 2014; Facultad de Ciencias de la Educación, Progama de Licenciatura en Lengua Castellana Publicador: Ibagué : Universidad del Tolima, 2014; Facultad de Ciencias de la Educación, Progama de Licenciatura en Lengua Castellana
Tipo: Trabajo de grado - Pregrado; Text; info:eu-repo/semantics/bachelorThesis; info:eu-repo/semantics/submittedVersion Formato: application/pdf
SPA
Relevância na Pesquisa
45.67%
163 Páginas; Recurso Electrónico; El interés del presente trabajo es explorar críticamente el manual de convivencia de la Escuela Normal Superior de Ibagué (ENSI), una de las instituciones educativas de mayor trascendencia en la ciudad, particularmente el problema de las formas de inclusión y exclusión (representación) del estudiante y el profesor empleadas por su discurso; en otras palabras, el estudio aspira a ofrecer una interpretación critica acerca de las significaciones que adquieren los mecanismos de representación de ambos actores sociales, sus implicaciones para la vida escolar y su relación con los parámetros pedagógicos que sustentan los procesos de formación en la Escuela Normal. En desarrollo de este cometido, la exploración en cuestión apela, en esencia, a las aportaciones del Análisis Critico del Discurso (ACD), fundamentalmente a las construcciones de Teo Van Leeuwen, quien ofrece una formulación teórica y una ruta metodológica tendiente a comprender e interpretar las formas de representación utilizadas por un discurso escrito. En este marco, vale la pena destacar que el trabajo también acude a otros saberes propios del campo educativo, como la pedagogía, la sociología de la educación, la psicología social y cognitiva...

Visual intelligence for online communities : commonsense image retrieval by query expansion

Dai, James Jian, 1982-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 67 leaves; 3564983 bytes; 3564788 bytes; application/pdf; application/pdf
EN_US
Relevância na Pesquisa
45.5%
This thesis explores three weaknesses of keyword-based image retrieval through the design and implementation of an actual image retrieval system. The first weakness is the requirement of heavy manual annotation of keywords for images. We investigate this weakness by aggregating the annotations of an entire community of users to alleviate the annotation requirements on the individual user. The second weakness is the hit-or-miss nature of exact keyword matching used in many existing image retrieval systems. We explore this weakness by using linguistics tools (WordNet and the OpenMind Commonsense database) to locate image keywords in a semantic network of interrelated concepts so that retrieval by keywords is automatically expanded semantically to avoid the hit-or-miss problem. Such semantic query expansion further alleviates the requirement for exhaustive manual annotation. The third weakness of keyword-based image retrieval systems is the lack of support for retrieval by subjective content. We investigate this weakness by creating a mechanism to allow users to annotate images by their subjective emotional content and subsequently to retrieve images by these emotions. This thesis is primarily an exploration of different keyword-based image retrieval techniques in a real image retrieval system. The design of the system is grounded in past research that sheds light onto how people actually encounter the task of describing images with words for future retrieval. The image retrieval system's front-end and back- end are fully integrated with the Treehouse Global Studio online community - an online environment with a suite of media design tools and database storage of media files and metadata.; (cont.) The focus of the thesis is on exploring new user scenarios for keyword-based image retrieval rather than quantitative assessment of retrieval effectiveness. Traditional information retrieval evaluation metrics are discussed but not pursued. The user scenarios for our image retrieval system are analyzed qualitatively in terms of system design and how they facilitate the overall retrieval experience.; James Jian Dai.; Thesis (S.M.)--Massachusetts Institute of Technology...

Mitigation of human supervisory control wait times through automation strategies; Mitigation of HSC wait times through automation strategies

Mitchell, Paul Jeffrey
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 181 p.; 9343094 bytes; 9354092 bytes; application/pdf; application/pdf
ENG
Relevância na Pesquisa
45.64%
The application of network centric operations principles to human supervisory control (HSC) domains means that humans are increasingly being asked to manage multiple simultaneous HSC processes. However, increases in the number of available information sources, volume of information and operational tempo, all which place higher cognitive demands on operators, could become constraints limiting the success of network centric processes. In time-pressured scenarios typical of networked command and control scenarios, efficiently allocating attention between a set of dynamic tasks is crucial for mission success. Inefficient attention allocation leads to system wait times, which could eventually lead to critical events such as missed times on targets and degraded overall mission success. One potential solution to mitigating wait times is the introduction of automated decision support in order to relieve operator workload. However, it is not obvious what automated decision support is appropriate, as higher levels of automation may result in a situation awareness decrement and other problems typically associated with excessive automation such as automation bias. To assess the impact of increasing levels of automation on human and system performance in a time-critical HSC multiple task management context...

Contributo para um manual de apoio de projectos co-financiados: o caso particular da medida 3.1 do Saúde XXI

Bastos, Sónia Maria Alves
Fonte: Universidade de Évora Publicador: Universidade de Évora
Tipo: Dissertação de Mestrado
POR
Relevância na Pesquisa
75.67%
A Medida 3.1 do Programa Operacional Saúde, no âmbito do lll Quadro Comunitário de Apoio, permitiu que micro e pequenas empresas se candidatassem a obtenção de financiamento comunitário com o intuito de melhorar o acesso e a qualidade dos cuidados de saúde prestados à população em áreas geográficas carenciadas. Por se tratar de uma medida inovadora no sector da saúde e face a reduzida experiência dos promotores na realização deste género de projetos, surgiram vários constrangimentos que condicionaram a concretização destas ações. Considerando uma seleção de 12 projetos concluídos, enquadrados por uma reflexão é metodologia do planeamento e da avaliação de programas, identificaram-se seis fases no ciclo de vida de projetos co-financiados pela Medida 3.1. Em cada uma destas fases procurou-se caracterizar as principais contrariedades, que na opinião dos promotores entrevistados, mais dificultou a realização dos projetos e em que medida as soluções adotadas permitiram atingir os objetivos previstos na candidatura. O resultado deste estudo qualitativo é a proposta de um Manual de Apoio a conceção e execução de projetos co-financiados, que permita disseminar recomendações para potenciar a concretização de futuras intervenções no sector privado da saúde. /ABSTRACT - The Measure 3.1 of the Health Operational Program...