Everyday Arrangements

These set of works are an arrangement of forms. I am interested in making a simplified version of my subject by limiting the amount of information that is present while still suggesting a space. My subject matter began as a pile of dirty clothes that were lying on my bathroom floor. I first noticed the contrast between the organic clumps of fabric against the vertical lines of the white panel wall. I then realized that this subject matter was much deeper and said a lot about my domestic life as a mother, a daughter, a sister, a girlfriend and a student. These mundane objects turned into complex forms that could be used to describe an average person\u27s life, my life. I have created in my work a catalog of forms that began as clothes that I am able to manipulate and arrange in a variety of ways to represent all of the parts of my life. A short list of some of the ideas that I see them representing are work, play, relationships, laziness, frustration, motherhood, change and love. I present them in an abstracted way because I don\u27t want to show the pile of clothes but rather, use this subject matter as a way of creating art and reflect upon what it represents in life

Alternative feeds or feed additives in feedlot diets

University of Minnesota Ph.D. dissertation. March 2014. Major: Animal Sciences. Advisor: Alfredo DiCostanzo. 1 computer file (PDF); v, 70 pages.Three experiments were conducted to determine effects of feeding alternative feeds or feed additives to cattle consuming feedlot diets on diet digestibility, rumen fermentation, growth performance, and carcass characteristics. In the first experiment, effects of adding a Saccharomyces cerevisiae product (SC) to cattle fed feedlot diets on diet digestibility and rumen fermentation were examined. Results of the first experiment suggest that feeding 1.0 g SC/hd daily may result in improved rumen acetate: propionate ratio. However, feeding 1.0 g SC/hd daily reduced rumen VFA concentrations, NH3-N concentration, and pH. In the second experiment, effects of partially replacing steam flaked corn with soy glycerin and distillers grains on diet digestibility and rumen fermentation in cattle were examined. Feeding distillers grains resulted in increased rumen propionate, rumen branched-chain VFA, and total rumen VFA. Feeding glycerin resulted in increased rumen pH and rumen propionate, and decreased rumen acetate. Feeding distillers grains or glycerin caused a reduction in rumen acetate: propionate ratio. In the third experiment, effects of replacing dry rolled corn with either 20% full-fat distillers grains, or 20% or 47% reduced-fat distillers grains (equal fat concentration as inclusion of 20% full-fat distillers grains) on feedlot cattle growth performance and carcass characteristics were examined. Results from this experiment indicated that utilizing reduced-fat distillers grains in place of full-fat distillers grains or dry rolled corn does not impact animal growth performance or carcass characteristics

TRANSMISSÃO DE SINAL DE CELULAR PARA ÁREAS RURAIS

O trabalho consiste em estudos de antenas e equipamentos para áreas rurais ou de difícil acesso, sem a disponibilidade da tecnologia de sinal de telefonia celular, com o objetivo de amenizar a comunicação entre as pessoas permitindo acesso às tecnologias avançadas do mundo atual e proporcionando melhores qualidades de vida para as pessoas das comunidades rurais. Assim o trabalho demonstra o desenvolvido de um equipamento capaz de captar, amplificar e retransmitir sinais de telefonia celular, com alta eficiência de funcionamento com baixo custo. No desenvolvimento do trabalho várias pesquisas são apresentadas, onde se inclui uma análise local, a qual se realiza um levantamento geral dos principais parâmetros da área de estudo, e a partir dos resultados obtidos proporcionou o desenvolvimento do protótipo do equipamento, além de demonstrar as principais características dos produtos, os quais foram especificados no trabalho, para composição das partes do equipamento

Natural carriers in bioremediation: a review

Bioremediation of contaminated groundwater or soil is currently the cheapest and the least harmful method of removing xenobiotics from the environment. Immobilization of microorganisms capable of degrading specific contaminants significantly promotes bioremediation processes, reduces their costs, and also allows for the multiple use of biocatalysts. Among the developed methods of immobilization, adsorption on the surface is the most common method in bioremediation, due to the simplicity of the procedure and its non-toxicity. The choice of carrier is an essential element for successful bioremediation. It is also important to consider the type of process (in situ or ex situ), type of pollution, and properties of immobilized microorganisms. For these reasons, the article summarizes recent scientific reports about the use of natural carriers in bioremediation, including efficiency, the impact of the carrier on microorganisms and contamination, and the nature of the conducted research

Kapitalistische Entwicklungswege bei der Genossenschaft

Genossenschaft -- Genossenschaftsrech

Die Vorzüge Tristanerzählung Gottfrieds von Strassburg gegenüber der Eilhartischen Sagentradition /

Doctora

Kapitalistische Entwicklungswege bei der Genossenschaft

Genossenschaft -- Genossenschaftsrech

Suporte cerâmico para imobilização de basidiomicetos em biorremediação de solos.

Programa de Pós-Graduação em Engenharia de Materiais. Rede Temática em Engenharia de Materiais, Pró-Reitoria de Pesquisa e Pós-Graduação, Universidade Federal de Ouro Preto.Entre os compostos sintéticos mais poluentes, podemos citar os organoclorados. A vida extremamente longa desses compostos, em ambientes naturais, amplifica a sua toxicidade e os problemas de riscos à saúde humana. No Brasil, fungos basidiomicetos estão sendo avaliados para a biorremediação de solos contaminados com organoclorados empregando-se biorreatores com 400kg de solo. Na etapa da inoculação ocorre perda de 70% da viabilidade do inóculo, devido ao atrito ocasionado pela mistura do micélio ao solo. O presente trabalho teve como objetivo desenvolver e caracterizar um suporte para a imobilização do inóculo fúngico, visando diminuir o atrito e manter a viabilidade do inóculo. Dentre as diversas matérias-primas avaliadas (bucha vegetal, compósito celulose/caramelo, pó de ardósia e de alumina) foi selecionado o pó de ardósia. A forma de esfera oca (de ~16mm, ~22mm e ~49mm de diâmetro) foi considerada a mais apropriada para a elaboração dos suportes. A densidade real da ardósia estudada foi de 2,70g/cm3. As barbotinas (suspensão de pó de ardósia em água) nas concentrações de sólido de 40% e 50% v/v foram analisadas quanto à viscosidade e ao potencial Zeta, sendo a concentração de 40% v/v a que apresentou menor viscosidade e maior valor de potencial Zeta. A sinterização foi realizada nas temperaturas de 850°C, 950°C, 1000°C, 1050°C e 1070°C. O produto sinterizado foi analisado por difração de Raios-X (DRX), microscopia eletrônica de varredura (MEV), e porosidade por intrusão de mercúrio (PIM). O DRX mostrou que as fases presentes no pó de ardósia são quartzo, clorita, moscovita e albita, enquanto nas peças sinterizadas a 1050°C são quartzo, microclínio e albita. A temperatura de 1050°C é a mais indicada para a sinterização dos suportes cerâmicos, porque permite a obtenção dos suportes com porosidade menor que 1%, sem que ocorra a deformação dos mesmos. A imobilização de Psilocybe castanella CCB444 foi realizada por meio da inoculação de discos de crescimento obtidos em meio agar extrato de malte (MEA) nos suportes contendo o substrato lignocelulósico, previamente esterilizado. Os suportes colonizados foram incubados a 28°C. A biomassa fúngica foi estimada pela quantificação do ergosterol (conversão ergosterol-biomassa). O crescimento exponencial de P. castanella, imobilizado nos suportes, foi observado a partir do 14° dia. As atividades de fenoloxidases e de lacases foram determinadas em diferentes tempos de cultivo, empregando-se metodologias padronizadas. Estas atividades foram detectadas a partir do quinto dia de crescimento do inóculo imobilizado. Os suportes colonizados foram submetidos a teste de eficiência mecânica em moinho (75rpm), contendo areia grossa. O desgaste dos suportes, determinado por avaliação visual antes e após o teste, não foi influenciado pelo tamanho da esfera, nem pelo tempo de duração do ensaio. O teste de viabilidade consistiu em colocar o suporte (na proporção de 3%) no moinho contendo areia, por 45’ a 75rpm, e determinar a biomassa fúngica e as atividades enzimáticas, antes e após o ensaio. O inoculo não imobilizado também foi avaliado. O fungo imobilizado no suporte cerâmico teve uma perda de atividade enzimática de 5%, enquanto para o fungo não imobilizado esta perda foi de 88%. Os resultados evidenciaram o potencial dos suportes cerâmicos, produzidos com o pó de ardósia, para imobilização de inóculo fúngico, visando sua utilização em processos de biorremediação de solos.Among the most pollutant synthetic compounds we can mention the organochlorines. The extremely long duration of these substances in the environment amplifies their toxicity and the risks for the human health. In Brazil, the basidiomycetes fungi are being evaluated for the bioremediation of contaminated soil using bioreactors with capacity of handling 400kg of soil. During the inoculation stage there is a loss of ~70% of the inoculum due to friction during mixing of the mycelia to the soil. The objective of the present work was to develop and characterize a support for fungi inoculum immobilization aiming to avoid the direct friction between inoculum and soil. We have investigated some raw materials (vegetable sponge, cellulose/caramel composite, alumina and slate powder for ceramics) for the support prodution. The slate powder was selected as the raw material for the ceramic support. The hollow sphere form (of ~16mm, ~22mm and ~49mm of diameter) was considered the most appropriate for the ceramic supports. The true density of the slate powder was mesured as 2.7g/cm3. The viscosity and the Zeta potential of the slips made with concentrations of 40% and 50% v/v of the slate powder were measured. The 40% v/v slip presented the lowest viscosity and the highest module of Zeta potential. The sintering was performed in an eletric muffle at 850°C, 950°C, 1000°C, 1050°C and 1070°C during 60 minutes. The sintered materials were analyzed used X-ray diffraction (XRD), scanning eletron microscopy (SEM) and mercury intrusion porosimetry (MIP). The XRD showed that the phases in the slate powder are quartz, chlorite, muscovite and albite while in the ceramic sample sinterized at 1050°C the phases were quartz, microcline and albite. The sintering temperature of 1050°C was selected for the production of ceramic support since we obtained samples with porosity < 1% and no cracks or warping. The immobilization of the Psilocybe castanella CCB444 was made by inoculating the mycelial disks into the ceramic supports with lignocellulose substrate. Colonized supports were incubated at 28°C. The fungal biomass was calculated by the quantification of ergosterol (ergosterol-to-biomass conversion). The exponential growth of P. castanella immobilized in the supports was observed after the day 14. The phenoloxidases and laccases activities have been determined at different time intervals and these activities have been detected after the 5th day of growth of immobilized inoculum. The colonized supports have been tested for mechanic resistence in a milling mill (75rpm) containing coarse sand. The abrasion of the supports determined by visual inspection before and after the test was not influenced neither by the size of the sphere nor by the testing time duration. In the viability test we have added 3% of the support spheres in the milling mill (75rpm during 45'). The determination of the fungic biomass and the enzymatic activities were measured before and after the assay. Immobilized fungus in the ceramic support had a 5% loss in the enzymatic activity while not immobilized fungus had a 88% loss. The results commfirm the great potential of the ceramic supports for fungal inoculum immobilization

O riso e o sorriso nos processos de socialização e construção identitária

Exportado OPUSMade available in DSpace on 2019-08-11T09:11:39Z (GMT). No. of bitstreams: 1 disserta__o_alexandre_compart___2009___sociologia.pdf: 1833543 bytes, checksum: 4f1d5e254644282db16edda1ef9ea100 (MD5) Previous issue date: 3Este estudo pleiteia a compreensão acerca do lugar do riso e do sorriso nos processos de socialização e construção identitária, observando o trabalho de assimilação, seleção e hierarquização dos signos operados pela percepção dos indivíduos, buscando adentrar na cadeia de significação e gerar hipóteses interpretativas, tomando as reações individuais por instrumentos para se verificar qual a relação de necessidade em que se encontram com as estruturas formuladas que os estimularam. Nossa análise pautar-se-á tanto pela consideração do riso e do sorriso enquanto reações espontâneas, considerada a socialização construída e em constante construção, como pela apreensão da intenção dos indivíduos, ou seja, em seu uso contextual e estratégico, nos dois casos a destacar não somente a estrutura/ conteúdo das comunicações de reação risível/ "sorrisível", mas também os aspectos performativos localizáveis espaço/ temporalmente.This study intends to comprehend the placement of the smile and the laughter in the socialization and identity construction processes, observing the works of assimilation, selection and sign hierarchization operated by individual perception. It also seeks to enter the chain of signification and generate interpretative hypothesis, taking individual reactions as tools to verify which is the relation of need in which they are located with the formulated structures that stimulated them. This analysis is leaded both by the consideration of the smile as spontaneous reaction, given the constantly constructed socialization, and the apprehension of the intention of individuals on its contextual and strategic levels. In both cases, it is highlighted not only the structure/content of the communication of the smiling reaction, but also the performative aspects that are likely to be located in space and in time