CHARACTERIZATION OF A AISI/SAE 4340 STEEL IN DIFFERENT MICROSTRUCTURAL CONDITIONS

The 4340 are classified as ultra-high strength steels used by the aviation industry and aerospace applications such as aircraft landing gear and several structural applications, usually in quenched and tempered condition. In this situation occurs reduction of toughness, which encourages the study of multiphasic and bainitic structures, in order to maintain strength without loss of toughness. In this study, ferritic-pearlitic structure was compared to bainitic and martensitic structure, identified by the reagents Nital, LePera and Sodium Metabisulfite. Sliding wear tests of the type pin-on-disk were realized and the results related to the microstructure of these materials and also to their hardnesses. It is noted that these different microstructures had very similar behavior, concluding that all three tested pairs can be used according to the request level.

Estudo da inflamação e da autoimunidade na doença hepática gordurosa não alcoólica

Pós-graduação em Fisiopatologia em Clínica Médica - FMB

Dinâmica pré e pós-colostral de parâmetros bioquímicos em cordeiros

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

Indicadores de Avaliação de Programas de Pós-Graduação: um estudo comparativo na área da Matemática

The aim of this research is to analyze, in a comparative way, by category of grade, some indicators used by Coordination for the Improvement of Higher Education Personnel (CAPES) in evaluating the performance of Graduate Programs in Mathematics in Brazil, for the triennium 2007-2009, in order to contribute to understanding of the complex methodology involved in triennial evaluations of graduate programs. Based on the indicators present in the Comparative Worksheet of Triennial Assessment, Area Mathematics / Probability and Statistics, from 2007 to 2009, present at CAPES Portal, contingency tables were built for the 26 graduate programs in Mathematics, presenting each indicator and the program concepts. Overall, there was a trend of association of all indicators analyzed and the concept obtained, with older and larger programs with better grades in the assessment. Also, with the exception of journal articles Qualis B5, the article average per professor grows as grows the program grade.

Análise da influência da adoção de práticas de Green Supply Chain Management no desempenho ambiental e operacional: estudo de caso

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Assinaturas de seleção em bovinos da raça Canchim

Pós-graduação em Genética e Melhoramento Animal - FCAV

The Th17 pathway in the peripheral lung microenvironment interacts with expression of collagen V in the late state of experimental pulmonary fibrosis

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

Speed Index in the Racing Quarter Horse: A Genome-wide Association Study

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

Predictive Usefulness of Urinary Biomarkers for the Identification of Cyclosporine A-Induced Nephrotoxicity in a Rat Model

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

Nutritional parameters are associated with mortality in acute kidney injury

OBJECTIVE: The objective of this study was to perform a nutritional assessment of acute kidney injury patients and to identify the relationship between nutritional markers and outcomes.METHOD: This was a prospective and observational study. Patients who were hospitalized at the Hospital of Botucatu School of Medicine were evaluated between January 2009 and December 2011. We evaluated a total of 133 patients with a clinical diagnosis of acute kidney injury and a clinical presentation suggestive of acute tubular necrosis. We explored the associations between clinical, laboratory and nutritional markers and in hospital mortality. Multivariable logistic regression was used to adjust for confounding and selection bias.RESULTS: Non-survivor patients were older (67 +/- 14 vs. 59 +/- 16 years) and exhibited a higher prevalence of sepsis (57.1 vs. 21.4%) and higher Acute Tubular Necrosis-Individual Severity Scores (0.60 +/- 0.22 vs. 0.41 +/- 0.21) than did survivor patients. Based on the multivariable analysis, laboratorial parameters such as blood urea nitrogen and C-reactive protein were associated with a higher risk of death (OR: 1.013, p = 0.0052; OR: 1.050, p = 0.01, respectively), and nutritional parameters such as low calorie intake, higher levels of edema, lower resistance based on bioelectrical impedance analysis and a more negative nitrogen balance were significantly associated with a higher risk of death (OR: 0.950, p = 0.01; OR: 1.138, p = 0.03; OR: 0.995, p = 0.03; OR: 0.934, p = 0.04, respectively).CONCLUSIONS: In acute kidney injury patients, a nutritional assessment seems to identify nutritional markers that are associated with outcome. In this study, a low caloric intake, higher C-reactive protein levels, the presence of edema, a lower resistance measured during a bioelectrical impedance analysis and a lower nitrogen balance were significantly associated with risk of death in acute kidney injury patients.

Aplicabilidade das equações isotermas de Freundlich e Langmuir na interação biossortiva de corantes têxteis com Saccharomyces cerevisiae liofilizada

This paper presents a study of the applicability of adsorption isotherms, known as Langmuir and Freundlich isotherm, between the biosorptive interaction of yeast lyophilized Saccharomyces cerevisiae and textile dyes. To that end, we prepared stock solutions of the textile dyes Direct Red 23 and Direct Red 75 in the concentration of 1.000μg/mL and a yeast suspension at 2,5%. We did experiments for two cases, firstly for the case that we have a fix concentration of yeast at 0,500mg/mL and an variable concentration of dye range from40, 50, 60, 80 and 100μg/mL, then for the case that we fixed the concentration of dye at 100μg/mL and the yeast concentration was variable range from 0,250, 0,500, 0,750, 1,000, 1,250mg/mL. For the dye Direct Red 23 we did analysis in the pH 2,5, 4,5 and 6,5; for the Direct Red 75, we just did for the pH 2,5. We leave the dye solution in contact with the yeast for 2 hours at a constant temperature of 30°C and then centrifuged and analyzed the sample in a spectrophotometer and finally made and analysis of parameters for the removal and study of the isotherms. After the biosorption, was observed that for the Direct Red 23 in the pH 2,5 was needed 1,407mg/mL of yeast for total removal, while for the pH 4,5 was needed 8,806mg/mL and in pH 6,5 was 9,286mg/mL; for the Direct Red 75 in pH 2,5 was needed 1,337mg/mL. This difference can be explain by the adsorption isotherms, was observed that in the case when the yeast was fix when we had in a acid pH the behavior of the system was compatible with the Langmuir isotherm, and thus, an monolayer pattern. And that when we decrease the acidity of the medium the system became more compatible with a Freundlich isotherm, and thus, a multilayer pattern; for the case that the yeast was variable this is not much evident, however for the pH 2,5 she became compatible with a Langmuir isotherm... (Complete abstract click electronic access below)

Gerenciamento dos resíduos de serviços de saúde do pronto socorro de um hospital escola na cidade de Botucatu

Health Care Waste (HCW) represents 1%, and it has presently gained a lot of importance. Adequate management is one of the great challenges to be faced by health care centers. It has gained distinction and been widely discussed by members of the sectors involved with sanitation, public health and environmental issues due to waste physical, chemical biological characteristics, which pose potential risk to the environment and public health. The present study aims at evaluating HCW internal management by following all its phases, determining indicators, classifying and quantifying, establishing production rates (kg /patient/day) for the sector and designing materials to disseminate appropriate HCW disposal in the Emergency Room of the UNESP University Hospital in the city of Botucatu according to the guidelines presently in force. : From June to October 2011, the waste flow was observed from its production to final disposal. Four weight measurements were performed on four consecutive days in the month of August by using a properly calibrated (in grams) digital scale at the times scheduled for collection of the produced waste. Hence, the daily and monthly amounts were estimated according to their classification. All the waste packaged in the bags in garbage cans in the Emergency Room for a 24-hour period was considered to be a sample. Separation was not adequately performed in that sector, and waste from Group A was mixed with that from Group D. The amount of infectious waste produced in the sector corresponded to 87.80 %, common waste to 10.93 % and recyclable waste to 1.27%. The mean daily HCW production was of 123.300 kg/day, and the total monthly production was of 3,822 kg/month, which was distributed as follows: Group A 3,355,750 kg/month; Group D 417,570 kg/month and recyclables 48,670 kg/month. The production rate corresponded to 0.47 kg/patient/day, thus showing... (Complete abstract click electronic access below)

Marcadores discursivos: uma proposta lexicográfica

Spanish is a language that in recent years has been growing in importance both politically and socially and economically, since some of the major international markets such as Chile, Spain, Mexico and Argentina, among many, have this language as the official language. This fact motivated us to conduct research that could, in some way, contribute to the teaching of this language in Brazil. Thus under the aegis of the theories and practices of bilingual lexicography, we seek to describe and analyze the treatment that some Spanish - Portuguese bilingual dictionaries present in our market give to the sentence connectors. From a textual corpus selected the markers and observe how the dictionaries analyzed work with this type of unit. We found that the information contained in these lexicographical works is not sufficient to meet the needs of Brazilian learners. Then, we proposed a macrostructure of a passive bilingual dictionary of sentence connectors in the language pair Spanish - Portuguese. Our research aims to contribute to bilingual lexicography both in regard to theoretical and methodological reflections on the application of these theories. Our contribution aims to fabricate materials for the teaching of Spanish in Brazil

Expressão gênica de MMP-2 e 9, TIMP-1 e 2, ATM, TP53, VEGF, COX-2 e CDH-1 no TVT canino

Pós-graduação em Medicina Veterinária - FCAV

Implementação do REUNI na UTFPR e as particularidades do câmpus de Medianeira

Pós-graduação em Educação - FFC