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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
201

VLIV PASTVY NA CHOVÁNÍ DOJENÉHO SKOTU / INFLUENCE BEHAVIOR GRAZING ON DAIRY CATTLE

HŮRSKÁ, Miriam January 2012 (has links)
The work was based on my own watching and the aim of this work was to determine basic vital signs of dairy cows breed in grazing system in the submontane area of South Bohemia. Herd of breeding cows, consisting of the Holstein breed, the Jersey breed and the Czech Pied Cattle crossbred with the Jersey, in quantity of 53 heads. During the year 2010 there were six behavioral watchings namely from June to October. Each watching lasted 24 hours and there was used the method of watching in the group with the time interval of 10 minutes. Cattle vital signs were watched: feed intake-grazing, lying down-resting, standing and movement.
202

Monitoring and analysis of antenatal and postnatal changes in maternal vital signs

Pullon, Rebecca January 2016 (has links)
Pregnancy-related complications affect approximately 15% of pregnancies and, if severe, can have long-term consequences. Timely recognition of physiological deterioration is known to reduce the prevalence and severity of complications. However pregnancy-associated changes in vital signs (blood pressure, heart rate, temperature, oxygen saturation, and respiratory rate) complicate the detection of abnormal physiology, and these changes are not well documented. This thesis describes the development of algorithms to ensure the collection of good-quality vital-sign data during the antenatal and postnatal stages of pregnancy, and the design of an evidence-based obstetric early warning score. Vital-sign information from 1,000 pregnant women during pregnancy, labour, and after delivery was collected during the 4P study using pulse oximetry, oscillometry for blood pressure measurement and a tympanic thermometer. Dynamic time warping was used to assess beat-by-beat quality in the photoplethysmograph (PPG) waveform obtained from the pulse oximeter. The resulting signal quality index enabled the exclusion of poor-quality sections and their associated measurements of heart rate and peripheral oxygen saturation. A robust measurement of respiratory rate was obtained by combining information from the PPG waveform, and accelerometer and gyroscope waveforms from a smartphone. After processing, frequency-based techniques, such as Fourier analysis and auto-regressive modelling, and time-domain peak detection were fused to estimate respiratory rate. When compared with the reference respiratory rate obtained from midwife measurement, the lowest mean absolute error of 1.16 breaths per minute was obtained from respiratory rate estimates from the y-axis of the gyroscope. Antenatal and postnatal reference ranges for each vital sign were developed with a standard polynomial multilevel (hierarchical) model using 10,000 vital sign measurements from 620 healthy women in the 4P study. Vital-sign trajectories confirmed known trends of blood pressure and heart rate changes during pregnancy, and provided new information about other vital-sign trends. Additional covariates were included to investigate the effect of parity and body mass index (BMI) on vital-sign trends. The outer centiles of the vital sign reference ranges were used to design an obstetric early warning score (C-ObsEWS) that took into account gestational age or time after delivery. The investigations in this thesis contribute additional knowledge of pregnancy-associated vital-sign changes, and lead to an initial proposal for an evidence-based obstetric early warning score specific to the stage of pregnancy.
203

Rotulagem ambiental: estudo de critérios para a concessão do selo verde para produtos manufaturados de couro

Barra, Bruna Neri [UNESP] 14 July 2009 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:26:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-07-14Bitstream added on 2014-06-13T19:33:47Z : No. of bitstreams: 1 barra_bn_me_bauru.pdf: 3958792 bytes, checksum: ae72a72eb4a06ae0fd87c7806e05b455 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Com a inserção da variável ambiental no comércio internacional, as negociações adquirem novo parâmetro de competitividade, pois as organizações reguladoras do comércio mundial buscam, por meio da rotulagem ambiental, minimizar os efeitos nocivos do ambiente, decorrentes das atividades produtivas. Neste sentido, os rótulos ambientais vêm informar aos consumidores as boas práticas produtivas empregadas pelos fabricantes para que possam tomar decisões conscientes no ato da compra. O Brasil, um dos maiores exportadores de couro, contempla para sua produção as atividades de cria, recria e engorda e, devido à demanda internacional pela carne, o setor da pecuária nacional avança suas fronteiras para implantação de novas pastagens. Esse fato, aliado ao manejo inadequado do rebanho, à liberação de efluentes e às emissões atmosféricas durante seu processamento, agravam os impactos ambientais Diante deste cenário, a presente pesquisa tem como objetivo averiguar se os cinco programas de rotulagem ambiental estudados, que possuem critérios instituídos para o couro bovino, contemplam os princípios das normas, em especial, os princípios das normas, em especial, os principais aspectos do ciclo de vida do couro. Neste contexto, realizou-se pesquisa exploratória, que identificou o programa Nordic Swan como sendo o mais completo por abranger um número maior de requisitos para o couro. Entretanto, constatou-se ainda que, os programas de rotulagem ambiental estudados não contemplam a totalidade do ciclo de vida deste material e, desta forma desprezam diversos impactos ambientais relacionados à sua produção. Assim, com base nos objetivos propostos verifica-se que os cinco programas de rotulagem ambiental se mostram deficientes, visto que, ao abordar o ciclo de vida de forma parcial, seus produtos rotulados não cumprem o objetivo de informar, ao consumidor, os efeitos nocivos da produção de couro. / With the insertion of the environmental factor in international trade, negotiations acquire new competitiveness parameter, for the world trade regulary organizations seek, through environmental labelling, minimize the adverse effects to the environment, caused by productive activities. In this sense, environmental labels come to inform consumers the good productive practices employed by manufacturers, so they can take aware decisions in the act of purchasing. Brazil, one of the largest leather exporters, contemplates for its production, the activities of breeding, restocking and fatterning and, due to the international demand for meat, the sector of national catle-breeding puts its borders for the establishment of new pastures. This fact, allied to the cattle inadequate management, the effluents releasing and the atmospheric emissions during is processing, increases the environmental impacts. Facing this scenario, this research aims to investigate whether the five environmental labelling programs studied, which have established criteria for the cowhide, include the principles of standards, in particular the main aspects of the life cycle of the leather. In this context, an exploratory research was accomplished, which identified the Nordic Swan program as being the most comprehensive by covering a larger number of requirements for the leather. However, it was still observed that the environmental labelling programs studied do not cover the entire life cycle of this material and thus they despise several environmental impacts related to its production. Thus, based on the objectives it is proposed that the five programs of environmental labelling is shown disabled because, in addressing the life cycle in part, labeled their products do not meet the objective of informing, the consumer, the harmfull effects the production of leather.
204

Avaliação in vitro da efetividade de associações de agentes clareadores na alteração da cor de dentes manchados por pigmentos sangüineos

Yui, Karen Cristina Kazue [UNESP] 09 June 2006 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:31:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-06-09Bitstream added on 2014-06-13T20:01:53Z : No. of bitstreams: 1 yui_kck_dr_sjc.pdf: 2075475 bytes, checksum: 65332c24d92e3b412ae98ae57ab0f400 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O objetivo deste estudo foi avaliar in vitro a efetividade de três associações de materiais clareadores na técnica mediata de clareamento de dentes tratados endodonticamente. Foram utilizados 48 pré-molares humanos íntegros, pigmentados artificialmente com sangue humano. Após preparo biomecânico, os canais radiculares foram obturados e o tampão cervical foi confeccionado com 3mm de cimento de fosfato de zinco ao nível da junção amelo-cementária. Os dentes foram divididos em quatro grupos (n=12): C (controle, sem material clareador), A1 (perborato de sódio + água destilada), A2 (perborato de sódio + peróxido de carbamida a 10%) e A3 (perborato de sódio + peróxido de carbamida a 35%). Os materiais clareadores foram trocados aos sete e 14 dias. Concluiu-se que o perborato de sódio associado ao peróxido de carbamida (tanto a 10%, como a 35%) foi mais efetivo do que quando associado à água destilada. / The aim of this study was to evaluate in vitro the effectiveness of three associations of bleaching agents on artificially stained pulpless teeth. Forty-eight recently extracted intact human premolars were stained by immersing them in human blood, and divided into four groups. All teeth were endodontically treated and 3mm of zinc phosphate cement was placed at the cementoenamel junction. The teeth were divided into one control group and three test groups (n=12): C) control group, without bleaching agent, A1) sodium perborate with water, A2) sodium perborate with 10% carbamide peroxide, A3) sodium perborate with 35% carbamide peroxide. On days 7 and 14, each pulp chamber was refilled with fresh bleaching paste. Color coordinates of CIELAB color system were measured and assessed with the aid of a dental spectrophotometer (EasyShade®, Vita). It was concluded that sodium perborate mixed with carbamide peroxide (10% or 35%) was more effective than mixed with water.
205

Avaliação da resistência à fratura de raízes fragilizadas reabilitadas por diferentes técnicas de construção de núcleos intra-radiculares

Clavijo, Victor Grover Rene [UNESP] 05 March 2008 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:24:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-03-05Bitstream added on 2014-06-13T19:10:18Z : No. of bitstreams: 1 clavijo_vgr_me_arafo.pdf: 1143518 bytes, checksum: fc7de1c4fc0422cee9413ae0dcdfbad7 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A reabilitação de raízes fragilizadas é um procedimento complexo com prognóstico duvidoso. Este estudo, avaliou por meio de compressão, a resistência à fratura e o padrão de fratura de raízes fragilizadas reabilitadas com diferentes técnicas de construção de núcleos intra-radiculares. Quarenta incisivos bovinos hígidos foram divididos em quatro grupos de acordo com a técnica de construção de pinos intra-radiculares: Grupo 1- raízes fragilizadas reabilitadas com núcleo metálico fundido; Grupo 2- raízes fragilizadas reabilitadas com pinos de fibra de vidro e pinos acessórios de fibra de vidro; Grupo 3- raízes fragilizadas reabilitadas com pino anatômico direto (resina composta + pino de fibra de vidro) ; Grupo 4- raízes fragilizadas reabilitadas com pino anatômico indireto de fibra de vidro. Todos os grupos tiveram seus núcleos cimentados com o cimento resinoso Multilink e as porções coronárias padronizadas por uma matriz de resina acrílica. Os corpos de prova forma submetidos à Máquina de Ensaio Universal à uma velocidade de carga de 0,5mm/min até sua fratura numa angulação de 135° em relação ao longo eixo do dente sobre a face palatina. Os valores médios de resistência à fratura foram: Grupo 1- 575,54N; Grupo 2- 400,49N; Grupo 3- 483,39N; Grupo- 4 559,19N. A análise de variância (ANOVA) (p<0,05) a um critério mostrou diferença estatisticamente. O grupo 1 e 4 médias diferentes, porém estatisticamente iguais, mas maiores estaticamente que o grupo 2 e 3. Os percentuais de raízes com prognóstico favorável após a fratura foram: Grupo 1- 0%; Grupo 2- 80%; Grupo 3- 100% ; Grupo 4- 100%. Os pinos anatômicos direto e indireto mostraram ser uma nova opção para reabilitação de raízes fragilizadas. / The rehabilitation of weakened roots is a complex procedure with an unpredictable prognosis. This study evaluated by compression to fracture resistance and the fracture pattern of weakened roots restored with different construction techniques of intra-radicular posts. Forty hygid bovine incisors were divided into four groups according to each technique of construction of the intra-radicular posts: Group 1- weakened roots restored with metallic posts,; Group 2- weakened roots restored with glass fiber posts and accessory glass fiber posts; Group 3- weakened roots restored with direct anatomic posts (composite resin + glass fiber post); Group 4- weakened roots restored with indirect anatomic post (glass fiber post). All the groups were cemented with dual resinous cement (Multilink) and the coronal portions were patterned by an acrylic resin matrix. The specimens were submitted to a Universal Testing Machine at 0,5mm/min speed until its fracture at an angulation of 135° in relation to the long axis of the tooth. The mean values of fracture resistance were: Group 1- 575,54N; Group 2- 400,49N; Group 3- 483,39N; Group 4- 559,19N. The ANOVA values were (p<0,05) to one criteria showed statistic difference. Group 1 and the 4 different means were statistically the same, but statistically more than the ones of groups 2 and 3. The percentage of roots with favorable prognosis after fracture were: Group 1- 0%; Group 2- 80%; Group 3- 100%; Group 4- 100%. The direct and indirect anatomic post of glass fiber showed a new option to rehabilitate weakened roots.
206

Rotulagem ambiental : estudo de critérios para a concessão do selo verde para produtos manufaturados de couro /

Barra, Bruna Neri. January 2009 (has links)
Resumo: Com a inserção da variável ambiental no comércio internacional, as negociações adquirem novo parâmetro de competitividade, pois as organizações reguladoras do comércio mundial buscam, por meio da rotulagem ambiental, minimizar os efeitos nocivos do ambiente, decorrentes das atividades produtivas. Neste sentido, os rótulos ambientais vêm informar aos consumidores as boas práticas produtivas empregadas pelos fabricantes para que possam tomar decisões conscientes no ato da compra. O Brasil, um dos maiores exportadores de couro, contempla para sua produção as atividades de cria, recria e engorda e, devido à demanda internacional pela carne, o setor da pecuária nacional avança suas fronteiras para implantação de novas pastagens. Esse fato, aliado ao manejo inadequado do rebanho, à liberação de efluentes e às emissões atmosféricas durante seu processamento, agravam os impactos ambientais Diante deste cenário, a presente pesquisa tem como objetivo averiguar se os cinco programas de rotulagem ambiental estudados, que possuem critérios instituídos para o couro bovino, contemplam os princípios das normas, em especial, os princípios das normas, em especial, os principais aspectos do ciclo de vida do couro. Neste contexto, realizou-se pesquisa exploratória, que identificou o programa Nordic Swan como sendo o mais completo por abranger um número maior de requisitos para o couro. Entretanto, constatou-se ainda que, os programas de rotulagem ambiental estudados não contemplam a totalidade do ciclo de vida deste material e, desta forma desprezam diversos impactos ambientais relacionados à sua produção. Assim, com base nos objetivos propostos verifica-se que os cinco programas de rotulagem ambiental se mostram deficientes, visto que, ao abordar o ciclo de vida de forma parcial, seus produtos rotulados não cumprem o objetivo de informar, ao consumidor, os efeitos nocivos da produção de couro. / Abstract: With the insertion of the environmental factor in international trade, negotiations acquire new competitiveness parameter, for the world trade regulary organizations seek, through environmental labelling, minimize the adverse effects to the environment, caused by productive activities. In this sense, environmental labels come to inform consumers the good productive practices employed by manufacturers, so they can take aware decisions in the act of purchasing. Brazil, one of the largest leather exporters, contemplates for its production, the activities of breeding, restocking and fatterning and, due to the international demand for meat, the sector of national catle-breeding puts its borders for the establishment of new pastures. This fact, allied to the cattle inadequate management, the effluents releasing and the atmospheric emissions during is processing, increases the environmental impacts. Facing this scenario, this research aims to investigate whether the five environmental labelling programs studied, which have established criteria for the cowhide, include the principles of standards, in particular the main aspects of the life cycle of the leather. In this context, an exploratory research was accomplished, which identified the Nordic Swan program as being the most comprehensive by covering a larger number of requirements for the leather. However, it was still observed that the environmental labelling programs studied do not cover the entire life cycle of this material and thus they despise several environmental impacts related to its production. Thus, based on the objectives it is proposed that the five programs of environmental labelling is shown disabled because, in addressing the life cycle in part, labeled their products do not meet the objective of informing, the consumer, the harmfull effects the production of leather. / Orientador: Adilson Renofio / Coorientador: Rosane Aparecida Gomes Battistelle / Banca: Otávio José de Oliveira / Banca: Aldo Roberto Ometto / Mestre
207

Niñez y desplazamiento lingüístico: reflexiones acerca del papel del habla en la socialización de los niños tobas de Buenos Aires

Hecht, Ana Carolina 25 September 2017 (has links)
Las diversas sociedades imprimen sobre el período de la niñez disímiles valoraciones, expectativas, derechos y obligaciones tanto para niños como para el resto del grupo social. Este artículo se interesa en abordar el papel de las prácticas y los usos de la lengua toba y el español durante las distintas etapas de la niñez. Desde una perspectiva etnográfico-antropológica, se analizará el caso de un asentamiento toba ubicado en las afueras de la Ciudad de Buenos Aires (Argentina) donde se evidencian signos de un proceso de desplazamiento de la lengua toba por el español. Como punto de partida se toma la propia categorización nativa de la niñez (nogotshaxac, literalmente: ‘la manera de ser niño/joven’ = nogot: ‘niño/joven’ y shaxac: ‘manera de ser’), y se concluye sistematizando los diferentes sentidos implícitos y explícitos que tienen las lenguas en los diferentes momentos de la vida. / This paper will analyze the relationship between language practices and childhood among Toba children. The study focused on a marginal urban setting in Buenos Aires where monolingual practices are replacing bilingual ones. Consequently, many children are rapidly shifting to Spanish and loosing their command of the Toba language. Through an ethnographic research, we observed native childhood categorization (nogotshaxac) to systematize the meanings, implicit and explicit, that languages have along different moments in children’s life.
208

Vital Sign Estimation through Doppler Radar

January 2013 (has links)
abstract: Doppler radar can be used to measure respiration and heart rate without contact and through obstacles. In this work, a Doppler radar architecture at 2.4 GHz and a new signal processing algorithm to estimate the respiration and heart rate are presented. The received signal is dominated by the transceiver noise, LO phase noise and clutter which reduces the signal-to-noise ratio of the desired signal. The proposed architecture and algorithm are used to mitigate these issues and obtain an accurate estimate of the heart and respiration rate. Quadrature low-IF transceiver architecture is adopted to resolve null point problem as well as avoid 1/f noise and DC offset due to mixer-LO coupling. Adaptive clutter cancellation algorithm is used to enhance receiver sensitivity coupled with a novel Pattern Search in Noise Subspace (PSNS) algorithm is used to estimate respiration and heart rate. PSNS is a modified MUSIC algorithm which uses the phase noise to enhance Doppler shift detection. A prototype system was implemented using off-the-shelf TI and RFMD transceiver and tests were conduct with eight individuals. The measured results shows accurate estimate of the cardio pulmonary signals in low-SNR conditions and have been tested up to a distance of 6 meters. / Dissertation/Thesis / M.S. Electrical Engineering 2013
209

As Forças Naturais na obra de Schopenhauer / The Natural Forces on the Work of Schopenhauer

Rodrigo Braga Alonso 24 February 2015 (has links)
Buscamos, nesta dissertação, lidar com o amplo conceito de forças naturais na obra de Schopenhauer; partindo de suas opiniões pelo ponto de vista científico até a correlação entre forças naturais, a força vital, a Ideia e os graus de objetivação da vontade de modo a desenvolver sua noção de unidade na natureza. / It\'s our goal, on this dissertation, to deal with the vast concept of natural forces on the work of Schopenhauer; starting with his opinions through the scientific point of view until the correlation between natural forces, the vital force, the Ideia e the degrees of the objetification of the will so we can develop his notion of unity on nature.
210

Desafios para caracterização da mortalidade infantil em Cabinda-Angola / Challenges to characterize infant mortality in Cabinda, Angola

Razão Simão 04 October 2011 (has links)
Objetivo: Discutir criticamente, descrever e analisar os dados de óbitos infantis disponibilizados pelos serviços públicos da província de Cabinda-Angola. Método: Foram estudados nascimentos vivos em hospitais da província de Cabinda, e óbitos de menores de um ano de idade, nos anos 2007 e 2008. Como fonte de dados foram utilizados os registrados nos livros de registro dos hospitais municipais, d o hospital provincial e do escritório provincial da OMS de Cabinda. Os dados são contextualizados pela experiência do autor como habitante da região. Resultados: Os resultados deste trabalho mostram que em 2008 morreram mais crianças no primeiro dia de vida (109) que nos 11 meses restantes (97). Contudo, evidencia-se que 200 óbitos (54,64 por cento ) ocorreram em menores de 28 dias de idade em 2007 enquanto que para o mesmo período em 2008 morreram 178 crianças, Quanto às causas básicas de mortes infantis, a malária é destacada como principal causa. Isoladamente a malária responde aproximadamente por uma morte a cada três crianças falecidas. Dentre as doenças evitáveis por vacinação, o tétano responde por cerca de 5 por cento das mortes. Entre as doenças controláveis por saneamento básico, as diarréias ocupam posição de destaque 9,83 por cento em 2007 e 3,27 por cento em 2008. A redução de 65 para 40 óbitos por pneumonia entre as crianças inscreve-a como segunda ou terceira causa mais importante de óbito entre as crianças cabindenses, partilhando espaço com a asfixia neonatal (17,75 por cento em 2007 e 26,90 por cento em 2008). Apesar das dificuldades e limitantes da qualidade das informações encontradas durante a coleta de dados, buscou-se valorizar as existentes e que foram analisa das neste trabalho. Conclusões: Os resultados obtidos indicam que em Cabinda, melhorias na qualidade de assistência pré-natal, ao parto e ao recém-nascido de risco, poderiam reduzir ainda que parcialmente a Mortalidade Infantil. Fatores como condições inadequadas de abastecimento de água, falta de saneamento básico, dentre outros, revelaram ter papel importante como condicionantes da elevada Mortalidade Infantil observada em Cabinda. Apesar de ser atraente priorizar investimentos dos recursos em ações curativas, este trabalho reforça a perspectiva revisitar as políticas locais de Saúde e priorizar as atividades preventivas nos municípios da grande Cabinda. Assim, sugere-se a implantação de uma rede primária de assistência à saúde e um investimento permanente na melhoria da qualidade das informações de Saúde / Objective: To critically discuss, describe and analyze the infant deaths data available for public services in the province of Cabinda-Angola. Method: A total of live births in hospitals in the province of Cabinda, and deaths of children under one year of age, in years 2007 and 2008. The data source were used those recorded on the records of municipal hospitals, the provincial hospital and the provincial office of WHO in Cabinda. The data are contextualized by the author\'s experience as an inhabitant of the region. Results: The results of this study suggested that in 2008 more children died in the first days of life (109) than in the remaining 11 months (97). However, it is clear that 200 deaths (54.64 per cent ) occurred in children younger than 28 day- old in 2007 while for the same period in 2008 died 178 children. As the root causes of child deaths, malaria is highlighted as the main cause. Malaria alone accounts for approximately one death every three children who die. Among the vaccinepreventable diseases, tetanus accounts for about 5 per cent of deaths. Among the diseases controlled by sanitation, diarrhea, occupy a prominent position in 2007, 9.83 per cent and 3.27 per cent in 2008. The reduction from 65 to 40 deaths from pneumonia among children falls as the second or third most important cause of death among children Cabinda, sharing space with neonatal asphyxia (17.75 per cent in 2007 and 26.90 per cent in 2008). Despite the difficulties, limiting the quality of information found during the data collection, we sought to enhance existing ones, which were analyzed in this work. Conclusions: The results indicate that in Cabinda, improvements in quality of prenatal care, childbirth and the newborn at risk, even partially could reduce infant mortality. Factors such as inadequate water supply, poor sanitation, among others, were found to have important role as determinants of high infant mortality observed in Cabinda. Despite being attractive investments prioritize resources on curative actions, this work reinforces the perspective of revisit policies and prioritize local health preventive activities in the great area of Cabinda. Thus, we suggest the establishment of a network of primary health care and an ongoing investment to improve the quality of information on Health

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