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Relação entre peso corporal e os fatores de risco cardiovasculares em adolescentes escolares do município de João Pessoa-PBAndrade, Achilles de Souza 30 June 2016 (has links)
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Previous issue date: 2016-06-30 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The increase in the prevalence of obesity and being overweight in children and adolescents generates a serious public health concern. Problems caused by excess weight, such as hypertension, heart disease, diabetes and hyperlipidemia (high blood cholesterol) are predictive factors for the development of cardiovascular diseases (CVDs). The aim of this study was to investigate the association between bodyweight and risk factors associated with CVDs in adolescents between 10 and 14 years old. For this, a sample of 1582 adolescent students (both sexes) was used, in the city of João Pessoa, Paraíba, Brazil. Data collection was conducted in 28 primary state schools (sixth year). Multiple linear regression models were obtained and used to help explain which risk factors are associated with body weight in the sampled adolescents, thus providing a decision model. It was observed that 53.2% of the samples were female and 80.5% identified as being non-white. Regarding the education level of the parents, 18.1% of fathers, and similarly 21.7%of mothers that have not completed elementary school. In the construction of the multiple linear regression model, the variables of physical activity, height, systolic blood pressure and diastolic blood pressure were associated with weight. It is therefore from this, by using a multiple linear regression model, it is possible to verify the association between body weight and the risk factors that are associated with the CVDs in adolescents between 10 and 14 years. Our results suggest the need for action to be taken to support the adherence to a healthy diet, linked to raising awareness of the importance of reducing sedentary behaviour, and the adoption of healthy living habits, with the aim to improve the quality of life of adolescents, and thus generating a protective factor against the development of CVDs. / O aumento na prevalência de sobrepeso e obesidade (excesso de peso) em crianças e adolescentes, gera grave problema de saúde pública. Os agravos provocados pelo excesso de peso, como a HA, cardiopatias, diabetes e hiperlípidemias, são fatores preditivos para o desenvolvimento das Doenças cardiovasculares (DCV). O objetivo deste estudo foi verificar a associação entre o peso corporal e fatores de risco associados a doenças cardiovasculares em adolescentes escolares de 10 a 14 anos. Para isto, utilizou-se uma amostra com 1582 adolescentes escolares (ambos os sexos) do município de João Pessoa/PB. A coleta de dados foi realizada em 28 escolas da rede pública de ensino fundamental II (no sexto ano), foram coletados dados. Foram obtidos modelos de regressão linear múltipla utilizados para explicar quais fatores de risco estão associados com o peso corporal dos escolares do estudo e assim obter um modelo de decisão. Observou-se que 53,2% dos adolescentes são do sexo feminino e 80,5% declaram ter cor da pele não branca. A respeito da escolaridade do pai 18,1% possuem ensino fundamental incompleto, de forma semelhante 21,7% das mães possuem ensino fundamental incompleto. Na construção do modelo de regressão linear múltipla as variáveis atividade física, estatura, pressão arterial sistólica e pressão arterial diastólica foram associadas ao peso. A partir do modelo de regressão linear múltipla, foi possível verificar a associação entre o peso corporal e os fatores de risco que estão associados as DCV´s em adolescentes escolares de 10 a 14 anos. Nossos resultados sugerem inserções de ações voltadas para o estímulo da adesão a uma alimentação saudável, vinculada à conscientização da importância da redução de comportamento sedentário, e adoção de hábitos de vida saudável, tendo por objetivo emergir melhorias de qualidade de vida dos adolescentes, gerando assim um fator protetivo contra as DCV´s.
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Estudo das forças de corte no processo de fresamento de bordas de chapas utilizadas para a fabricação de tubos de aço com costura. / Study of cutting forces in the edge milling process of sheets used on welded pipes manufacturing.Guilherme Cruz Rossi 30 November 2007 (has links)
O propósito deste trabalho é estudar as forças de corte envolvidas no processo de fresamento de bordas de chapas utilizadas para a fabricação de tubos de aço com costura e como estas variam em função dos parâmetros de corte utilizados. O objetivo é correlacionar estas forças à qualidade do acabamento superficial das bordas usinadas, uma vez que esta é fundamental para a qualidade final da solda do tubo. Para isso, foi construído um dinamômetro de mesa para medição das forças, e os dados foram analisados através do Método da Regressão Linear Múltipla. Os resultados obtidos demonstraram que, tanto para a força de corte quanto para a rugosidade da superfície usinada, o parâmetro que mais influencia é o avanço por dente, seguido pela largura de corte, sendo que o que menos influencia é a velocidade de avanço. Estes resultados foram comprovados com êxito no processo industrial foco deste estudo através da medição da corrente elétrica dos motores dos eixos-árvore e da vibração dos mesmos. / This work aims to study the cutting forces involved in the edge milling process for welded pipes manufacturing and how these forces vary due to the cutting parameters. The objective is to create a relationship between these forces and the surface roughness of the machined edges, once it\'s fundamental to the pipe weld quality. To do this, it was designed and manufactured a dynamometer, and the data was analyzed statistically by the Linear Multiple Regression Method. The results show that for the cutting forces as well as the surface roughness, the most significant parameter is the feed per tooth, followed by the cutting width and the feed speed. These results were successfully proven on the industrial process that is the focus of this study, through the spindle motors electric current and its vibration.
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Análise cinemática tridimensional do salto em distância de atletas de alto nível em competição / Three-dimensional kinematic analysis of the long jump in high level in competitionLara, Jerusa Petróvna Resende, 1980 02 April 2011 (has links)
Orientador: Ricardo Machado Leite de Barros / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Educação Física / Made available in DSpace on 2018-08-17T17:54:42Z (GMT). No. of bitstreams: 1
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Previous issue date: 2011 / Resumo: O presente trabalho teve como objetivo fazer a análise cinemática tridimensional do salto em distância de atletas de alto nível em competição através de quatro trabalhos independentes. O primeiro trabalho teve como objetivo analisar a relação das variáveis cinemáticas do salto em distância de atletas de alto nível em competição através de uma análise de regressão linear múltipla nas fases de aproximação, impulsão e voo. Os resultados encontrados foram que a velocidade escalar do centro de massa no touchdown , a altura máxima do centro de massa na fase de voo e a distância do pé de apoio do atleta à tábua de impulsão foram as variáveis incluídas no modelo de predição da distância saltada, sendo conjuntamente responsáveis por 68% da variabilidade da distância. Para um segundo modelo, onde as velocidades escalares foram substituídas pelas componentes das velocidades do centro de massa, a velocidade horizontal do centro de massa no touchdown, a velocidade vertical do centro de massa no touchdown e o ângulo de ataque foram responsáveis por 88% da variabilidade da distância saltada. O segundo trabalho teve como objetivo analisar a replicabilidade e a reprodutibilidade das variáveis cinemáticas tridimensionais no salto em distância e testar a sensibilidade dos valores de replicabilidade e reprodutibilidade na predição da distância saltada. Para esse estudo dez observadores de ambos os sexos realizaram cinco medições cada um de um mesmo salto em distância sob as condições que definem reprodutibilidade e replicabilidade. A partir das edições dos observadores, foram calculadas as variáveis cinemáticas do salto em distância na fase de impulsão. Concluímos que as variáveis de velocidades do centro de massa são reprodutíveis e replicáveis acima de 0.09m/s enquanto variáveis angulares, acima de 0.67°. Para a análise de sensibilidade foi encontrado que para variação de 1m na distância saltada, seriam necessários uma variação de 0.77, 200.00 e 1.80 m/s nas velocidades horizontal, lateral e vertical do centro de massa, respectivamente e uma variação de 5.75° no ângulo do vetor velocidade do centro de massa e o plano horizontal. O terceiro trabalho teve como objetivo investigar a cinemática angular do salto em distância de atletas de alto nível em competição através de três análises dos ângulos articulares durante a fase de impulsão, sugerindo que uma análise realizada durante uma competição oficial, fornece informações valiosas para as análises técnicas e de investigação. Além disso, a análise estatística revelou que os ângulos de flexão máxima ocorre de forma seqüencial, a partir do quadril ao tornozelo, quando relacionada com a porcentagem da fase de impulsão do salto. O último trabalho teve como objetivo analisar a variabilidade nas variáveis cinemáticas ridimensionais de dois atletas medalhistas olímpicos e os resultados sugerem que os atletas devem buscar controlar as variáveis de saída da tábua, buscando reduzir a sua variabilidade e atingir seus valores ótimos das variáveis cinemáticas. / Abstract: The aim of this study is to make a three-dimensional kinematic analysis of long jump during competition through four independent papers. The first study aimed to analyze the long jump kinematic variables relationship in high level athletes in competing across a multiple linear regression analysis of the approach, takeoff and flight phases. The results showed that the center of mass velocity at touchdown, center of mass maximum height during the flight phase and distance from the support athlete's foot to the takeoff board were the variables included in he prediction model of the hopped distance, and together were responsible for 68% of the distance variability. For the second model, the scalar velocities were replaced by the velocity components of the center of mass. With that change, the center of mass horizontal velocity at touchdown, the center of mass vertical velocity at touchdown and angle of attack were responsible for 88% of the distance variability. The aim of the second study was to examine the repeatability and reproducibility of three-dimensional kinematic variables in the long jump and test the sensitivity of the repeatability values and reproducibility in the distance jumped prediction. For this study, ten observers of both sexes performed five measurements each of a long jump under the same conditions that define reproducibility and repeatability. From the observer's measurements, we calculated the kinematic variables of the long jump during the takeoff. We conclude that the variables of the center of mass velocities are reproducible and repeatable over 0.09m/s while angular variables over 0.67°. For sensitivity analysis were found that for the variation of 1m in the distance jumped, would require a variation of 0.77, 200.00 and 1.80 m/s in horizontal, vertical and lateral velocities of the center of mass, respectively, and a variation of 5.75 ° in angle velocity vector of center of mass and in the horizontal plane. The third study aimed to investigate the angular kinematic of the long jump in high level athletes during competition across three analysis of the joint angles during the takeoff, suggesting that an analysis performed during an official competition provides valuable information for technical analysis and research. Furthermore, statistical analysis revealed that the maximum flexion angles occur sequentially, from hip to ankle, when associated to the percentage of the jump takeoff. The aim of the last study were to analyze the variability in three-dimensional kinematic variables of two Olympic medalists and the results suggest that athletes should attempt to control the output variables of the board, seeking to reduce their variability and achieve their optimum values of the kinematic variables. / Mestrado / Biodinamica do Movimento Humano / Mestre em Educação Física
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Relação entre atributos do solo e da planta e a resposta espectral da cana-de-açucar / Relationship between soil and plant attributes and the spectral response of the sugarcane plantationLourenço, Leonardo Sene de 21 February 2005 (has links)
Orientador: Mara de Andrade Marinho Weill / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola / Made available in DSpace on 2018-08-05T13:28:12Z (GMT). No. of bitstreams: 1
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Previous issue date: 2005 / Resumo: O desenvolvimento de sensores orbitais de alta resolução espacial e espectral e a perspectiva de maior periodicidade na obtenção de imagens tem incentivado a aplicação crescente de técnicas de sensoriamento remoto no estudo de características espectrais das culturas relacionadas com seu potencial de produção. Os chamados índices de vegetação têm sido utilizados como critérios para estimar a resposta espectral da cultura e, indiretamente, sua produtividade. A resposta espectral é uma medida do vigor vegetativo da cultura, sendo afetada por fatores ambientais, do manejo e da planta. O presente estudo teve por objetivo central estudar a influência de atributos do solo e da planta na variação da resposta espectral da cultura da cana-de-açúcar, medida por meio do índice de vegetação da diferença normalizada (NDVI), aplicando métodos estatísticos uni e multivariados. O estudo foi realizado em um talhão de produção comercial de cana-de-açúcar de cerca de 26 ha, no município de Araras (SP), entre as coordenadas 47º19¿02¿ e 47º19¿26¿ W e 22º21¿53¿ e 22º22¿12¿ S. A lavoura foi implantada em setembro de 1997 com a variedade SP80-1842, precoce, de hábito decumbente e acamamento regular. O delineamento amostral constou de uma grade regular, composta por 67 pontos amostrais georreferenciados e espaçados de 50 m nas direções X e Y, de onde foram extraídas amostras de solo (camadas 0- 30 cm e 30-60 cm) e foliares. As amostras de solo foram extraídas em setembro de 2000 e de 2001, logo após a colheita. As amostras foliares foram extraídas durante a fase de desenvolvimento vegetativo da cultura, no mês de janeiro de 2001 e de 2002. Os anos agrícolas estudados correspondem ao 4º (2000/01) e 5º (2001/02) cortes. Foram avaliados atributos granulométricos e de fertilidade do solo e os teores foliares de macro e micronutrientes (variáveis preditoras). O índice de vegetação NDVI (variável predita) foi calculado a partir de imagens LANDSAT 7, sensor ETM+, obtidas em duas épocas durante a fase de desenvolvimento vegetativo da cultura. Para análise da influência da variação dos atributos edáficos e foliares na variação observada no NDVI foram empregados os métodos estatísticos referidos por análise exploratória, análise de agrupamentos, análise de componentes principais e análise de regressão linear múltipla, adotando-se o método stepwise para seleção de variáveis e ajuste dos modelos. Foram ajustados dois modelos de regressão linear múltipla. O modelo de regressão ajustado aos dados de 2000/01 explicou 30,8% da variação observada da resposta espectral em função da matéria orgânica (M.O., 0-30 cm) e dos teores foliares de fósforo (P, Planta) e de ferro (Fe, Planta). A inclusão desses atributos no modelo pode ser interpretada no caso da matéria orgânica pela similaridade com o NDVI, conforme resultado da análise de agrupamento; no caso do ferro por sua representatividade como integrante do 1º componente principal, e no caso do fósforo por sua baixa correlação com os demais atributos analisados, conforme indicado pela análise exploratória. O modelo de regressão ajustado aos dados de 2001/02 explicou 29,8% da variação observada da resposta espectral em função dos teores de cobre (Cu) e ferro (Fe) na camada 0-30 cm e do teor de enxofre (S-SO4) na camada 30-60 cm. Interpreta-se a inclusão desses atributos no modelo no caso do enxofre por sua representatividade como integrante do 1º componente principal e do ferro como integrante do 3º componente. No caso do cobre, sua inclusão deve estar baseada na média correlação com a resposta espectral (NDVI) e baixa correlação com os demais atributos do modelo, de acordo com os dados da análise exploratória. Os resultados obtidos permitiram comprovar a hipótese do trabalho. Parte da variação observada da resposta espectral na área de estudo pôde ser explicada pela variação de atributos do solo (fator de produção) e da planta. No entanto, entende-se que a capacidade de explicação dos modelos poderia ter sido maior caso tivessem sido incluídas na análise outras variáveis, sobretudo climáticas, bem como, variáveis edáficas que permitissem avaliar o efeito de fatores como compactação e resistência à penetração, tendo em vista se tratar de solos argilosos e muito argilosos / Abstract: The development of multispectral sensors with high spatial and spectral resolutions and the perspective of greater regularity in the attainment of the images have stimulated the increasing application of the remote sensing techniques in the study of spectral response patterns of the crops relating with their potential of production. The spectral response pattern is a measure of the vegetative vigor of a crop, being affected by genotype, management and environmental factors. The main objective of the present research was to study the influence of selected soil and plant attributes in the observed variation of the spectral response pattern of the sugarcane crop, measured by means of the normalized difference vegetation index (NDVI), applying multivariate statistics methods. The study was developed in a commercial area (26 ha) of sugarcane production in Araras (SP), between the coordinates 47º19'02 "and 47º19'26" W and 22º21'53"and 22º22'12" S. The crop was installed in September/1997 with the variety SP80-1842. The experimental delineation was a regular grid, composed by 67 points of sampling, georeferenced, and spaced of 50 m in the X and Y directions, from where had been extracted the plant (leaves) and the soil samples (0-30 cm and 30-60 cm). The soil samples were extracted in September (2000 and 2001), after the harvest. The plants were sampled during the phase of vegetative development of the crop, in January (2001 and 2002). The attributes evaluated were grain sized and fertility attributes (soils) and nutrient contents in leaves (plant). The vegetation index NDVI was calculated from LANDSAT 7, sensor ETM+ images. The statistics methods of analysis have included exploratory analysis, cluster analysis, principal component analysis (PCA), and multiple regression analysis, using the stepwise criterion for selection of the variables and model adjustment. Two linear multiple regression models have been adjusted. The first model (2001/02) could explain 30,8% of the observed variation of NDVI as a function of the soil organic matter (M.O., 0-30 cm) and of the phosphorus (P, Plant) and of the iron (Fe, Plant) contents in leaves. The inclusion of these attributes in the model can be interpreted with basis on the case of the soil organic matter for its similarity with the NDVI, as indicated by cluster analysis. In the case of the iron content its inclusion could be interpreted for its significance as integrant of the first component in PCA, and in the case of the P content with basis on its low correlation with the all others attributes, as indicated for the exploratory analysis. The second regression model (2001/02) could explain 29,8% of the observed variation of NDVI as a function of soil contents of copper (Cu) and iron (Fe) in the first layer (0-30 cm) and the sulphur content (S-SO4) in the second layer (30-60 cm). The inclusion of these attributes in the second model can be interpreted in the case of the S-SO4 content according its significance as integrant of first component in PCA, and the iron content according its significance as integrant of third component in PCA. In the case of copper, its inclusion must be explained with basis in its average correlation with the NDVI and small correlation with the all other attributes of the model, as indicated for the exploratory analysis. The results have permitted to accept the hypothesis of the work. Part of the observed variation of the spectral response pattern in the study area could be explained by the local variation of some soil (production factor) and plant attributes. However, that the capacity of explanation of the two adjusted models could have been better if another variables, in particular the ones related with climate and soil hardness, have been included in the analysis / Mestrado / Planejamento e Desenvolvimento Rural Sustentável / Mestre em Engenharia Agrícola
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A inovação tecnológica nas indústrias do Estado de São Paulo: uma análise dos indicadores da PAEP / The technological innovation of industries in the State of São Paulo: a analysis of PAEP indicatorsAntônio Carlos Pacagnella Júnior 27 March 2006 (has links)
A inovação tecnológica desempenha um papel fundamental no desenvolvimento de empresas, regiões e mesmo de países. Especificamente no estado de São Paulo, estudar os aspectos relevantes a este tema é de suma importância por se tratar do estado mais industrializado e mais importante economicamente no Brasil. Dentro deste contexto, este estudo visa analisar especificamente aspectos ligados à inovação tecnológica nas empresas dos diversos setores de atividade industrial, utilizando para isto ndicadores de inovação tecnológica e de dados empresariais da Pesquisa de Atividade Econômica Paulista (PAEP), realizada pela fundação Sistema Estadual de Análise de Dados Estatísticos (SEADE), sobre o período de 1999 a 2001. / The technological innovation performs a fundamental part in the development process of companies, regions and even countries. Specifically in the state of São Paulo, the study of relevant aspects to this theme is of summary importance because it is the most industrialized and economically important in this country. Within of this context, this study aim to analyze specifically some aspects linked to the technological innovation in different sections of industrial activity, using to this, technological innovation indicators and business results obtained by the Paulista Research of Economic Activities (PAEP), that was realized by SEADE foundation over the period of 1999 to 2001.
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Three Studies of Transitions of Young People in Public Care: A Focus on Educational OutcomesTessier, Nicholas January 2015 (has links)
The educational outcomes of children in care, as they prepare for and eventually complete the transition out of care, have been the subject of a growing body of research. Despite the progress made, no unified theory of risk and protective factors associated with educational outcomes has yet arisen from the longitudinal, cohort, and cross-sectional studies conducted with youth in care. This dissertation presents three papers that examine the effects of risk and protective factors on a range of educational outcome variables. The studies follow the timeline of a young person preparing for transition, moving into supported transitional living, and then eventually exiting care altogether.
Study 1 presents cross-sectional and longitudinal tests of the generalizability of many of the risk and protective factors identified by O’Higgins, Sebba, & Gardner (2014) in their systematic review of predictors of educational achievement among young people living in foster or kinship care. The cross-sectional sample consisted of 3,662 young people aged 12 to 17 years who were residing in out-of-home care in Ontario, Canada. An additional longitudinal sample was composed of a subsample of 962 young people from the cross-sectional sample who had also been assessed 36 months later with the AAR-C2-2010 during year 13 (2013-2014) of the OnLAC project. Supporting evidence for twelve of the twenty factors identified by O’Higgins et al. are revealed in the broad cross-sectional study and for the four factors that were found to predict change in academic success over a longitudinal timeframe suggest we are on the right track. Study 2 uses a lag-as-moderator approach to see if the time between assessments influences the predictive capacity of variables assessed when the young person was in care to predict educational variables evaluated when the youth had completed the transition to support independent living. Results from this thorough methodological study of gap length over six years of OnLAC data are encouraging: 87.5% of the predictors tested for statistical moderation effects by the length of time between assessments were shown to be stable predictors across all gaps (i.e., no moderation by gap length effect). Study 3 presents a pilot 12-month follow-up study conducted with young people at the point of a major transition within or from child welfare services, comparing their characteristics with those of samples from the general population.
When assembled together, the three studies provide a foundation towards the formalizing of a list of risk and protective predictors of educational outcomes (namely, academic success, educational attainment, educational aspirations, and NEET status) originally selected from a systematic review that identified a range of factors to be associated with the educational outcomes of youth in care (O’Higgins, Sebba, and Gardner; 2014). Additionally, this dissertation presents a series of recommendations regarding the management and multiple imputation of missing data and the use of Lag as Moderator statistical methods in child welfare research.
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Kvantifiering av social aktivitet : En metodanpassning med utgångspunkt i kommersiell gatumiljöFredriksson, Alexandra, Kamsaing, Alice January 2021 (has links)
Gatumiljön som ett offentligt rum har möjligheter att utvecklas till utrymmen med flera samverkande funktioner. En av funktionerna är att gaturummet ska fungera som en social plats, eftersom den offentliga miljön tillhör alla invånare och ska utformas efter allas behov. Denna studie tar sin utgångspunkt i en tidigare studie som är utförd i USA, som tillämpar en forskningsmetod som kvantifierar socialt beteende genom observationer i gatumiljö. Utgångspunktens metod söker sambandet mellan gatumiljöns platsegenskaper och social aktivitet via en multipel regressionsanalys. Syftet är att besvara vilka fysiska funktioner och attribut som påverkar gatumiljöns livlighet, det vill sägaden sociala aktiviteten. Målet med denna studie är att anpassa den befintliga forskningsmetoden till en svensk kontext och applicera den på ett studieområde. Utgångspunktens tillvägagångssätt av observationer och inventering har därför anpassats och tillämpats genom empirin av pilotstudier. Resultatet visar att ett statistiskt samband mellan platsegenskaper och gatumiljöns livlighet inte kan säkerställas i en multipel regressionsanalys. Det går däremot att visa på statiskt samband mellan gatumiljöns livlighet och tiden på dygnet. I sin helhet visar studien att metodanpassning är komplext att genomföra avseende tid och erfarenhet, men även valideringen av den. Denna studie kan därför betraktas som en pilotstudie, och lämnar alternativa tillvägagångsätt för framtida forskning. / Streets as a public space have opportunities to become spaces with several interacting functions. One of these functions includes streets as a social place since the public environment belongs to all residents and should be designed for all needs. This study is based on a former study conducted in the U.S.A.that quantifies social behavior through observations in the street environment. The applied method seeks the association between the physical characteristics of the street environment and social activity by using multiple regression analysis. The purpose was to answer which physical functions and attributes affect the liveliness of the street environment, i.e., the social activity in the U.S.A. This study aims to adapt the existing research method into a Swedish context and apply it within a study area in Gävle. The results show that a statistical association between physical characteristics and the liveliness of the street cannot be ensured by a multiple regression analysis. On the other hand, it is possible to show a static association between the liveliness of the street and a time period of the day. This study shows that method adaption is complex in terms of time and experience, but also in terms of validation. Thisstudy can therefore be considered a pilot study and provides alternative approaches for future research.
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A Research Study on the Impact of Hospital Quality on Hospital Inpatient Direct CostSeaborne, Wade 22 October 2021 (has links)
No description available.
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Macroeconomic factors' impact on the number of bankruptcies among small and medium-sized companies / Makroekonomiska faktorers påverkan på antalet konkurser bland små- och medelstora bolagHansson, Agnes, Lindvall, Agnes January 2020 (has links)
Small and medium-sized companies constitute a large part of the Swedish economy and are to a great extent exposed to the developments in the macroeconomy. There is a general consensus that it exists a relationship between these two components, but to what dimension is it true? The aim of this thesis is to evaluate if the number of bankruptcies among small and medium-sized companies can be explained by the situation in the macroeconomy. In order to do so, data have been collected and a multiple linear regression analysis has been accomplished. The result of the analysis suggests that a model of the six macroeconomic factors months, CPI, retail sales, OMX30, total enterprises and liquidated enterprises, can explain the number of bankruptcies to an extent of 64.49%. When comparing the adequacy of other models used to estimate risks of bankruptcy, it is stated that other models are more accurate. Furthermore, we have concluded that the model is useful to bring insight but only when considered in combinations with other models and tools. / Små- och medelstora bolag utgör en stor del av den svenska ekonomin och är i mycket stor utsträckning exponerad mot utvecklingen i makroekonomin. Den generella bilden är att det existerar en relation mellan dessa två komponenter, men till vilken utsträckning är det sant? Syftet med den här uppsatsen är att utvärdera om antalet konkurser bland små- och medelstora bolag kan förklaras av vilket stadium makroekonomin befinner sig i. För att kunna genomföra undersökningen har en multipel linjär regressionsanalys genomförts. Resultatet av analysen visar att en modell bestående av sex oberoende variabler, månader, KPI, detaljhandeln, OMX30, totalt antal bolag och antal likviderade bolag, kan till 64.49% förklara utfallet av antalet konkurser bland små- och medelstora bolag. Jämfört med andra modeller och teorier som används för att beräkna risken av konkurs hos ett bolag uppfyller modellen inte lika hög tillförlitliget. Slutgiltigen föreslås att modellen kan användas i kombination med andra modeller och verktyg för att bidra med insikt och slutsatser.
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Transfer of technology to developing countries. "A methodology to quantify and predict temporal rates of technology transfer from advanced to developing countries".Belhoul, Kheira S. January 1983 (has links)
The transfer of technology to developing countries constitutes
one of the major debates in the literature on development
economics. The present empirical investigation is intended to
" contribute to the large existing literature on technological
transfer. Its major contribution lies in demonstrating rigorously
that the integration of foreign technologies is greatly affected
by the socio-economic conditions of the recipient countries.
The present study attempts to identify the main socioeconomic
characteristics involved in assimilating transferred
technlogy. It first provides a quantifiable measure of the rate
of technological absorption. Then, in presenting the selection
of indicators, the general procedures followed in choosing the
sample of countries are summarized and the principles guiding the
choice of variables are examined. The model is based on multiple
regression analysis, which is discussed in some detail. Another
statistical method is used to explore the interdependence of the
economic and social indicators, which provides more exact knowledge
about their various interactions and lays the groundwork
for the problem at hand.
Three main indicators are identified that explain a significant-.
sixty one percent of the total variance of the dependent
variable. These main indicators are the rate of education, trade
policies and the availability of certain consumer products. It
is found that these variables express different and important
dimensions of the third world economy. In general, the results
reveal that the rate of technology integration varies greatly
with the level of socio economic development. The findings of the
investigation are analysed using new and efficient methods of
diagnostic techniques, and are also seen within their theoretical
perspectives'.
The analysis of results is concluded with a discussion of
intangible factors that cannot as yet be quantified; factors such
as political and managerial quality and yet can be expected to
have significant effects on the rate of technological integration. / Ministry of Hydraulics in Algeria
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