78 research outputs found

    O processo de adaptação estratégica da Cia. Hansen Industrial, de 1941 a 1981

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    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico.Esta dissertação descreve e analisa o processo de adaptação estratégica, possibilitando a compreensão da transformação organizacional da empresa pertencente ao setor de plásticos, a partir da década de 40. É estudado o caso da Cia. Hansen Industrial, no período de 1941 a 1981. Na fundamentação teórica, contempla-se aspectos relativos ao processo de adaptação estratégica, mais especificamente escolha estratégica e determinismo ambiental. A metodologia histórica e contextual, utiliza o procedimento de Pettigrew. Descreve-se o processo de adaptação estratégica na organização, à medida que esta sofre ações externas (influências do meio ambiente) atuando diretamente na empresa. Conclui-se que a organização adota estratégias diferenciadas a cada período analisado, buscando adaptar-se às situações diversas, implementando novos processos e/ou produtos

    Soil Management Of Sugarcane Fields Affecting Co2 Fluxes

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    Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)The harvesting system of green sugarcane, characterized by mechanized harvesting and no crop burning, affects soil quality by increasing the remaining straw left on the soil surface after harvesting, thus, contributing to the improvement of physical, chemical, and microbiological soil attributes, influencing CO2 fluxes. This study aimed to evaluate CO2 fluxes and their relation to soil properties in sugarcane crops under different harvesting managements: burned (B), Green harvesting for 5 years (G-5) and Green harvesting for ten years (G-10). For this, a 1 ha sampling grid with 30 points was installed in each area, all located in the Northeast of Sao Paulo State, Brazil. In each point, CO2 fluxes were measured and the soil was sampled to analyze the microbial biomass, physical (soil moisture and temperature, mean weight diameter, bulk density, clay, macroporosity and microporosity) and chemical characterization (pH, organic C, base saturation and P). The CO2 fluxes were divided into four quantitative criteria: high, moderate, low and very low from the Statistical Division (mean, first quartile, median and third quartile) and the other data were classified according this criterion. The Principal Component Analysis (PCA) was used to identify the main soil attributes that influence CO2 fluxes. The results showed that G-10 CO2 fluxes were 28 and 41 % higher than those in the G-5 and B treatments, respectively. The PCA analysis showed that macroporosity was the main soil attribute that influenced the high CO2 fluxes.736543551Sao Paulo State Foundation for Research Support [FAPESP - 2010/18.979-5, 2011/04.842-0]Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP

    Solubilização micelar do ibuprofeno: influência do grupo polar dos tensoativos no grau de solubilização

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    An important property of micelles with particular significance in pharmacy is their ability to increase the solubility of poorly soluble drugs in water, thus increasing their bioavailability. In this work, the solubilization of ibuprofen (IBU) was studied in micellar solutions of three surfactants possessing the same hydrocarbon tail but different hydrophilic head groups, namely sodium dodecyl sulphate (SDS), dodecyltrimethylammonium bromide (DTAB), and n-dodecyl octa(ethylene oxide) (C12EO8). The results showed that, irrespective of the surfactant type, the solubility of IBU increased linearly with increasing surfactant concentration, as a consequence of the association between the drug and the micelles. The 80 mM DTAB and the 80 mM C12EO8 micellar solutions resulted in a 16-fold increase in solubility of IBU when compared to the buffer solution, whereas the 80 mM SDS micellar solution resulted in a 5.5-fold increase in IBU solubility. The highest value of molar solubilization capacity (chi) was obtained with DTAB, chi = 0.97, followed by C12EO8 ,chi = 0.72, and finally SDS, chi = 0.23. However, due to the stronger tendency of the nonionic surfactant in forming micelles in solution, at the same surfactant concentration, we obtained the same solubility of IBU in both DTAB and C12EO8.Uma propriedade importante das micelas, do ponto de vista farmacêutico, refere-se ao potencial destas em solubilizar fármacos pouco solúveis em água, aumentando sua biodisponibilidade. No presente trabalho, estudou-se a solubilização de ibuprofeno (IBU) em soluções micelares constituídas de três tensoativos apresentando a mesma cauda apolar, porém diferentes grupos hidrofílicos. Os tensoativos estudados foram dodecil sulfato de sódio (SDS), brometo de dodeciltrimetilamônio (DTAB) e óxido de n-dodecil octaetileno (C12EO8). De acordo com os resultados obtidos, a solubilidade do IBU aumentou linearmente com o aumento da concentração de todos os tensoativos estudados, devido às interações entre as micelas e o fármaco. O fármaco IBU apresentou um aumento de 16 vezes em sua solubilidade na presença de DTAB 80 mM e de C12EO8 80 mM. Por outro lado, na presença de SDS 80 mM a solubilidade do IBU aumentou apenas 5,5 vezes. O maior valor para o parâmetro capacidade molar de solubilização (chi) foi observado com o tensoativo DTAB, chi = 0,97, seguido pelo C12EO8, chi = 0,72 e, finalmente, o SDS, chi = 0,23. Entretanto, devido à grande tendência do C12EO8 em formar micelas, o perfil de solubilidade do IBU foi semelhante em DTAB e C12EO8

    Spatial And Temporal Variability Of Soil Co2 Flux In Sugarcane Green Harvest Systems

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    Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)The sugarcane green harvest system, characterized by mechanized harvesting and the absence of crop burning, affects soil quality by increasing crop residue on the soil surface after harvest; thus, it contributes to improving the physical, chemical, and microbiological properties and influences the soil carbon content and CO2 flux (FCO2). This study aimed to evaluate the spatial and temporal variability of soil FCO2 in sugarcane green harvest systems. The experiment was conducted in two areas of sugarcane in Sao Paulo, Brazil: the first had a 5-year history of sugarcane green harvest (SG-5) and the second had a longer history of 10 years (SG-10). The temporal FCO2 were evaluated in the dry and rainy periods, and spatial variability in the dry period, and related to soil chemical and physical properties, including organic C porosity, bulk density, soil penetration resistance, mean weight diameter of soil aggregates, clay, P, S, Ca, Mg and Fe. The temporal variability indicated no differences between the dry and rainy periods in SG-10, while in SG-5 soil moisture was increased by 33 % in the rainy period. The spatial variability indicated a different pattern from the temporal one, where FCO2 in SG-10 was correlated with soil temperature, air-filled pore space, total porosity, soil moisture, and the Ca and Mg contents; in the SG-5 area, FCO2 was correlated with soil mean weight diameter of soil aggregates and the sulfur content.40FAPESP/SPFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP

    Spatial and temporal variability of soil CO2 flux in sugarcane green harvest systems

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    The sugarcane green harvest system, characterized by mechanized harvesting and the absence of crop burning, affects soil quality by increasing crop residue on the soil surface after harvest; thus, it contributes to improving the physical, chemical, and microbiological properties and influences the soil carbon content and CO2 flux (FCO2). This study aimed to evaluate the spatial and temporal variability of soil FCO2 in sugarcane green harvest systems. The experiment was conducted in two areas of sugarcane in São Paulo, Brazil: the first had a 5-year history of sugarcane green harvest (SG-5) and the second had a longer history of 10 years (SG-10). The temporal FCO2 were evaluated in the dry and rainy periods, and spatial variability in the dry period, and related to soil chemical and physical properties, including organic C porosity, bulk density, soil penetration resistance, mean weight diameter of soil aggregates, clay, P, S, Ca, Mg and Fe. The temporal variability indicated no differences between the dry and rainy periods in SG-10, while in SG-5 soil moisture was increased by 33 % in the rainy period. The spatial variability indicated a different pattern from the temporal one, where FCO2 in SG-10 was correlated with soil temperature, air-filled pore space, total porosity, soil moisture, and the Ca and Mg contents; in the SG-5 area, FCO2 was correlated with soil mean weight diameter of soil aggregates and the sulfur content.4

    BIENESTAR PSICOLÓGICO Y EVALUACIÓN DE MARCADORES DE INFLAMACIÓN EN PACIENTES CON DUELO DE LA CLÍNICA DE DUELO POR SUICIDIO DEL CENTRO UNIVERSITARIO DE CIENCIAS DE LA SALUD

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    El bienestar psicológico se vulnera cuando la persona experimenta una pérdida significativa que lo lleva a vivir el duelo. Esta experiencia, ha sido asociada al desarrollo de enfermedades crónico-degenerativas y alteraciones en la salud mental como la depresión, afectando las diversas esferas del ser humano: personal, social, laboral y familiar. La Organización Mundial de la Salud (OMS, 2013), define la salud mental como “El estado de bienestar en el cual, el individuo, es consciente de sus propias capacidades, puede afrontar las tensiones normales de la vida, puede trabajar de forma productiva y fructífera y es capaz de hacer una contribución a su comunidad”. Desde esta perspectiva, las preguntas a tratar de responder tratan: ¿los pacientes con duelo por pérdidas significativas se encuentran en un estado de desequilibrio emocional en el cuál los marcadores inflamatorios se encuentran en inestabilidad?, ¿Tal situación provoca que los pacientes con duelo sean vulnerables en su bienestar psicológico? En este contexto, el objetivo de este estudio fue evaluar los marcadores de inflamación y de bienestar psicológico como resultado de la intervención terapéutica del duelo mediante la Terapia de Aceptación y Compromiso (TAC). Participaron 32 adultos que habían experimentado una pérdida significativa reciente (seis a 24 meses previos al estudio) y se emplearon mediciones psicométricas (INCAVISA) y mediciones de las concentraciones séricas de IL-6 y TNFa, como marcadores de inflamación. El tipo de estudio fue cuantitativo, retrospectivo y comparativo. Los resultados preliminares sostienen que la ACT ha mostrado su efectividad a partir de las diferencias estadísticamente significativas de las variables que afectan la calidad de vida y el bienestar psicológico (p<.05). Los participantes reportan una mayor flexibilidad psicológica, reviviendo sus experiencias dolorosas, favoreciendo la adaptación a una nueva normalidad ya sin el fallecido (Worden, 2004) y resignificando su interacción psicosocial con el medio ambiente en donde desarrolla sus actividades laborales, familiares, sociales que lo conducen al bienestar psicológico y a la salud mental. De lo anterior, puede deducirse que el duelo podría ser uno de los causales de los decrementos en la productividad familiar y social, ya que en el mediano y largo plazo, se convertirte en un problema de salud pública, el detectarlo –duelo- de forma oportuna servirá para el desarrollo de la salud mental y bienestar del individuo. De acuerdo con la bibliografía revisada, en relación a síntomas de padecimiento de duelo y sus repercusiones y sus patologías ocupan un lugar importante en el desempeño de la actividad laboral, familiar y social

    Soil management of sugarcane fields affecting CO2 fluxes

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    The harvesting system of green sugarcane, characterized by mechanized harvesting and no crop burning, affects soil quality by increasing the remaining straw left on the soil surface after harvesting, thus, contributing to the improvement of physical, chemical, and microbiological soil attributes, influencing CO2 fluxes. This study aimed to evaluate CO2 fluxes and their relation to soil properties in sugarcane crops under different harvesting managements: burned (B), Green harvesting for 5 years (G-5) and Green harvesting for ten years (G-10). For this, a 1 ha sampling grid with 30 points was installed in each area, all located in the Northeast of São Paulo State, Brazil. In each point, CO2 fluxes were measured and the soil was sampled to analyze the microbial biomass, physical (soil moisture and temperature, mean weight diameter, bulk density, clay, macroporosity and microporosity) and chemical characterization (pH, organic C, base saturation and P). The CO2 fluxes were divided into four quantitative criteria: high, moderate, low and very low from the Statistical Division (mean, first quartile, median and third quartile) and the other data were classified according this criterion. The Principal Component Analysis (PCA) was used to identify the main soil attributes that influence CO2 fluxes. The results showed that G-10 CO2 fluxes were 28 and 41 % higher than those in the G-5 and B treatments, respectively. The PCA analysis showed that macroporosity was the main soil attribute that influenced the high CO2 fluxes

    POLÍTICAS INDIGENISTAS, DESENVOLVIMENTO E TERRITORIALIDADES INDÍGENAS NO BRASIL ATUAL

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    As relações entre os povos originários e a sociedade brasileira são historicamente mediadas pelo Estado. Na República, em decorrência dos conflitos promovidos por frentes expansionistas, foi criado o Serviço de Proteção ao Índio (1910), implantando o regime tutelar. Durante o Regime Militar, o SPI foi extinto e substituído pela FUNAI, que seguiu os mesmos princípios integracionistas, atrelados à política desenvolvimentista na Amazônia. A Constituição de 1988 aboliu esses preceitos e reconheceu a organização autônoma desses povos. Nas últimas décadas, o Estado brasileiro, em consonância com o agronegócio, mineradoras e outros interesses, restringiu a autonomia étnica e territorial dos povos indígenas. O artigo analisa os impactos dessas políticas sobre a organização social e a cosmopolítica desses povos, nos campos da educação, desenvolvimento, políticas indigenistas, territorialidade e relações interétnicas

    QUÍMICA PARA SURDO: UM RELATO DE EXPERIÊNCIA

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    This experience description has as objective to debate the Chemistry content teaching to hear- impaired people. By maintaining dialogue, either in writing or in reading, the High School reached content about Chemistry was co-related to the deaf day-a-day bases, so that it was able to be found concrete ways for the internalization of those contents in the deaf&rsquo;s vocabulary repertoire. It was adopted the polyphony as a support,&nbsp; considering that it indicates the presence of other texts within another text, caused by the insertion of the author&nbsp; in a context that includes already preview texts that inspire or influence the hear-impaired person.The selected theme for the use of example of application of the arch method was density. For the verification and analysis of the teaching-and-learning process demanded, it was chosen the formative evaluation, since each deaf student learns in a different way and that method respects the differences.Este relato de experi&ecirc;ncia tem como finalidade&nbsp;discutir o ensino dos conte&uacute;dos de Qu&iacute;mica para Surdos. Por meio do dialogismo, tanto na escrita como na leitura, correlacionou-se os conte&uacute;dos ensinados no Ensino M&eacute;dio sobre Qu&iacute;mica com o cotidiano do Surdo encontrando formas concretas para a integraliza&ccedil;&atilde;o deste conte&uacute;do ao repert&oacute;rio vocabul&iacute;stico do Surdo. Adotou-se a polifonia como suporte, visto que ela indica a presen&ccedil;a de outros textos dentro de um texto, causada pela inser&ccedil;&atilde;o do autor num contexto que j&aacute; inclui previamente textos anteriores que lhe inspiram ou influenciam. O tema selecionado como exemplo de aplica&ccedil;&atilde;o do M&eacute;todo do Arco utilizado neste trabalho foi densidade.&nbsp;&nbsp;Para a verifica&ccedil;&atilde;o e an&aacute;lise dos processos de ensino e de aprendizagem institu&iacute;dos, optou-se pela avalia&ccedil;&atilde;o formativa, j&aacute; que cada discente surdo aprende de uma forma diferente e esse m&eacute;todo respeita tais diferen&ccedil;as
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