907 resultados para digital time with memory


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Pós-graduação em Agronomia (Produção Vegetal) - FCAV

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Considering the premise that there are few theoretical reflections in the Portuguese language, concerning the autobiography as a genre, we propose to present a work addressing this issue by discussing the writings of George Gusdorf (1912-2000). One of the most expressive French scholars on this field, alongside Philippe Lejeune and Jean George May, and Starobinsky, Gusdorf stands out for his vast production centered on theoretical issues concerning the writings of the self. The study presented here aims at disseminating Gusdorf writings in Brazil, as well as presenting a critical analysis of the most pertinent issues related to the autobiographical genre, including aspects such as its origins, the blurred boundaries of genre, truth and sincerity, the relations between time and memory, self-knowledge and knowledge of the world.

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Pós-graduação em Educação Matemática - IGCE

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The Advanced LIGO gravitational wave detectors are second-generation instruments designed and built for the two LIGO observatories in Hanford, WA and Livingston, LA, USA. The two instruments are identical in design, and are specialized versions of a Michelson interferometer with 4 km long arms. As in Initial LIGO, Fabry-Perot cavities are used in the arms to increase the interaction time with a gravitational wave, and power recycling is used to increase the effective laser power. Signal recycling has been added in Advanced LIGO to improve the frequency response. In the most sensitive frequency region around 100 Hz, the design strain sensitivity is a factor of 10 better than Initial LIGO. In addition, the low frequency end of the sensitivity band is moved from 40 Hz down to 10 Hz. All interferometer components have been replaced with improved technologies to achieve this sensitivity gain. Much better seismic isolation and test mass suspensions are responsible for the gains at lower frequencies. Higher laser power, larger test masses and improved mirror coatings lead to the improved sensitivity at mid and high frequencies. Data collecting runs with these new instruments are planned to begin in mid-2015.

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Empirical phylogeographic studies have progressively sampled greater numbers of loci over time, in part motivated by theoretical papers showing that estimates of key demographic parameters improve as the number of loci increases. Recently, next-generation sequencing has been applied to questions about organismal history, with the promise of revolutionizing the field. However, no systematic assessment of how phylogeographic data sets have changed over time with respect to overall size and information content has been performed. Here, we quantify the changing nature of these genetic data sets over the past 20years, focusing on papers published in Molecular Ecology. We found that the number of independent loci, the total number of alleles sampled and the total number of single nucleotide polymorphisms (SNPs) per data set has improved over time, with particularly dramatic increases within the past 5years. Interestingly, uniparentally inherited organellar markers (e.g. animal mitochondrial and plant chloroplast DNA) continue to represent an important component of phylogeographic data. Single-species studies (cf. comparative studies) that focus on vertebrates (particularly fish and to some extent, birds) represent the gold standard of phylogeographic data collection. Based on the current trajectory seen in our survey data, forecast modelling indicates that the median number of SNPs per data set for studies published by the end of the year 2016 may approach similar to 20000. This survey provides baseline information for understanding the evolution of phylogeographic data sets and underscores the fact that development of analytical methods for handling very large genetic data sets will be critical for facilitating growth of the field.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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One of the most primal ways of human work already known is the tessellation and ginning for the production of fabric and clothing - what used to be, back in those days, statement of power and status. The arrival of the Industrial Revolution - in the middle of the XVIII century at Britain - increased the textile industry production, and what used to be manufactured and hard to obtain, starts then to be produced in mechanical ways and large-scale. Despite all the boost given to the economy of an expanding capitalist market, it should be pointed out the consequences of this major industrialization, especially the environmental ones, more and more concerning nowadays. The emissions of waste - that sometimes could be toxic - in effluents can possibly contaminate the aquatic ecosystems, causing a huge damage to its fauna and flora, affecting therefore all the biodiversity, reaching inclusively the humans. To avoid these problems, a few strategies have been taking place in the attempt to eliminate - or at least reduce - the amount of dye found in the effluents, and as the textile industry constantly leaves waste, efficient methods - that present good results in a short period of time - with a low cost are needed. The present study will test the bioremoval capacity of yeast (Saccharomyces cerevisiae) in contact with dyes in a fix concentration, diluted in water with three different pH values. The tests will be done duplicate, and after the concentration analyses - made by spectrophotometry - it will be analyzed which pH shows major efficiency in the dye removal and what is the influence of the biomass in this process

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Pós-graduação em Docência para a Educação Básica - FC

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Muscle activity has been studied indirectly through analyses of temperature variation in skin surface temperature on the masticatory muscles. These procedure may be an important tool for clinical evaluation and assessment of the evolution of temporomandibular disorders, as well as monitoring the adopted protocol. Thus, its utilization for identified pathological alterations on blood circulation and/or on metabolic activity in subcutaneous tissues, such as the masticatory muscles, is justified. The aim of this study was to investigate the effect of occlusal splints’ thickness on the variation of surface temperature of the anterior temporal and masseter muscles during rest and clenching. It were analyzed 20 symptomatic subjects (10 males and 10 females) selected through the Research Diagnostic Criteria (RDC) questionnaire. Temperature expressed in degrees Celsius (ºC) was measured on the surface of both muscles measured with the aid of a digital thermometer with an infrared radiation reading system. The surface temperature of the anterior temporal and masseter muscles presented significant reduction during teeth clenching in relation to the mandibular rest position. However, there were no significant differences between conditions with and without occlusal splint or between the different thicknesses of splints analyzed. Masticatory muscles showed a considerable similar behavior for both sides, and no significant distinctions were observed between male and female patients.

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Tooth bleaching is the most common treatment and more conservative to get a smile with white teeth. However, the tooth sensitivity has been a major adverse effects caused by this treatment, which raises questions about the effect of bleaching the pulp. Therefore, we performed a literature review in order to study the relationship between bleaching agents and their possible effects on the dental pulp. We review various articles showing that the peroxide compound used to whiten teeth, penetrates through enamel and dentin until the pulp chamber causing changes of variable intensity or induce pulp necrosis. Moreover, we found that the higher the concentration of peroxide in the bleaching agent, and the greater the contact time with this dental structure, the greater the damage caused in the pulp. Although several studies show that the bleaching agent hydrogen peroxide-based pulp can make changes, there are still many gaps to be filled.

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Darunavir, a protease inhibitor used in the treatment of HIV infection, presents few methods for its determination in pharmaceuticals. Infrared (IR) spectroscopy offers the possibility of obtaining spectra relatively quickly, providing interesting information, analytically, qualitatively or quantitatively. Capillary electrophoresis (CE) performs separations of high efficiency in shorter time with reagents and samples in small quantity. These two methods are cost-benefitted when we evaluate the green level and the cost of analysis. Faster and cheaper methods without generating organic waste by IR and CE for the quantification of darunavir were developed and validated, focusing socioeconomic impact of analytical decisions. If the cost of acquisition, maintenance, production, analysis and conditioning of drugs and pharmaceuticals is high, consequently the price of this product in the market will be higher and it cannot be accessible to the patient. Treatment failure not only affects the quality of life of patients, but also contributes significantly to the economic burden of the health system. In this context there is a tool called Analysis of the Life Cycle, which comes to make us think in a multidimensional way focusing the whole, the parts and especially the interaction among the parts of a system.

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Psychogenic Excoriation is a psychodermatosis characterized by skin alterations connected to mental processes, which are more common in women. It generates a considerable physical and psychosocial discomfort to the patient, because of the skin lesions. These patients assume to injure their own skin, and it differentiates this diagnosis from the factual dermatitis. This acknowledgement facilitates the insertion of these patients in psychotherapeutic processes, including fast psychotherapy, which can benefit them, especially in hospital contexts such as hospital ambulatories specialized in dermatology. Fast dynamic psychotherapies are described, analyzed and recommended to a psychogenic excoriation patient while introducing the process plan indicated to her. It relates to the clinical study of cases with medical records, psycho interviews and results of the FPI (Factor Personality Inventory). Based on these data, a fast psychotherapy is suggested with defined focus, aim and time, with a therapeutic plan according to what’s recommended in this type of treatment. The main objective is the symptom alleviation besides self-knowledge and insights, clarifying the most important identified psychodynamic conflicts. It’s also suggested that the suggested fast psychotherapy process could well result in important therapeutic gains to the analyzed patient.