Valor nutritivo de Cratylia argentea para suplementação de ruminantes na Amazônia

O trabalho foi realizado na Embrapa Amazônia Oriental, em Belém, Pará, (1º28´ S 48º27´ W de Greenwich), com o objetivo de avaliar a influência da adição de Cratylia argentea, como alternativa para suplementação alimentar de ruminantes, em períodos críticos de produção de forragem na Amazônia Oriental. Foram determinadas as características nutricionais da dieta, durante um período de 21 dias, com 16 ovinos, em gaiolas metabólicas individuais, distribuídas em delineamento inteiramente casualizado, em quatro tratamentos e quatro repetições. Os tratamentos continham quicuio-da-amazônia (Brachiaria humidicola) e níveis crescentes de 25%, 50%, 75% e 100% de inclusão de Cratylia argentea. Os consumos de matéria seca, em g/dia e percentagem do peso vivo, foram de 656,47 e 1,76; 743,50 e 1,96; 714,92 e 1,89; e 480,52 e 1,31 de matéria orgânica 619,64; 715,85; 665,36 e 535,85 g/dia, e de proteína bruta 68,01; 108,29; 187,67 e 170,61 g/dia. O consumo de FDN, em g/dia, foi de 567,44; 536,70; 486,51 e 382,25 g/dia. Os coeficientes de digestibilidade da matéria seca foram de 37,87; 24,01; 21,93 e 34,36%, da matéria orgânica de 42,66; 31,54; 27,02 e 36,05% e de proteína bruta de 56,04; 56,64; 68,66 e 71,44%, em 25%, 50%, 75% e 100% de inclusão de Cratylia argentea, respectivamente. A Cratylia argentea constitui alternativa no período de estiagem, quando ocorre redução na disponibilidade e qualidade das forrageiras, visando elevar a produtividade animal. Apresenta média digestibilidade da matéria seca, matéria orgânica, proteína bruta, energia bruta e frações fibrosas, mesmo em estádio de floração, embora tenha médio consumo, devido a menor palatabilidade, causada pelo tanino. Níveis em torno de 50% possibilitam maior consumo da matéria seca, matéria orgânica, proteína bruta, energia bruta e frações fibrosas.

Efeito da ciclagem mecânica sobre a resistência de união de pinos intra-radiculares de fibra cimentados com resina à dentina

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

LITOGEOQUÍMICA, QUÍMICA MINERAL E TERMOBAROMETRIA DO METAGABRO DE APIAÍ, SP

A porção meridional do Cinturão de Dobramentos Ribeira é constituída por um imenso pacote de rochas metavulcanossedimentares que encerram numerosas ocorrências de rochas ígneas básicas. Uma dessas ocorrências merece destaque pelas suas dimensões, composição, situação geológica e idade. Trata-se do metagabro de Apiaí. O presente estudo caracteriza a litogeoquímica dessa rocha como proveniente de basalto oceânico, de caráter toleítico, sub alcalino. Análises petrográficas mostram serem constituídas por piroxênios (augita e hiperstênio), Mg hornblenda e plagioclésio (labradorita). Também foram encontrados actinolita e clorita, formados durante o metamorfismo de baixo grau que afetou essa rocha. Esses minerais foram analisados por microssonda eletrônica e determinadas suas composições químicas. Os dados de piroxênio e plagioclásio, resultantes dessas análises, revelam temperaturas de cristalização do metagabro entre 924 e 1241oC. Temperaturas menores foram obtidas pela Mg-hornblenda e situam-se entre 776 e 927oC. A pressão de cristalização foi calculada e está em torno de 3,2 a 4,5 kbar. Os parâmetros metamórficos, obtidos em função da presença de actinolita e clorita, indicam temperaturas entre 420 e 484oC.

Relations between the yield of bean (Phaseolus vulgaris L.) and chemical attributes of an Acrustox under no-tillage

In crop year 2006/07, in Selviria, MS, Brazil, were analyzed the productivity of beans because of the chemical attributes of an Acrustox cultivated under conditions of high technological level of management by no-tillage irrigated with pivot central. The objective was to select, among the attributes studied soil, the one with the best representation to explain the variability of agricultural productivity. Geostatistical grid was installed to collect data from soil and plant, with 117 sampling points in an area of 2,025 m(2) and homogeneous slope of 0.055 m m(-1). From the standpoint of linear and spatial bean yield was respectively explained in terms of P and soil pH. So much for the values of phosphorus (P) in the intermediate layer and subsurface between 24-26 mg dm(-3), as well as for Hydrogen (pH) in the surface layer between 5.0 to 5.4, resulted in sites with the most high yield (2,160-2,665 kg ha(-1)).

Application of Reactions Norms in Study of Genotype Environmental Interaction for Milk Yield of Buffaloes

The aim of this study was to estimate genetic parameters for milk yield (MY) in buffaloes using reaction norms. Model included the additive direct effect as random and contemporary group (herd and year of birth) were included as fixed effects and cow age classes (linear) as covariables. The animal additive direct random effect was modeled through linear Legendre polynomials on environment gradient (EG) standardized means. Mean trends were taken into account by a linear regression on Legendre polynomials of environmental group means. Residual variance was modeled trough 6 heterogeneity classes (EG). These classes of residual variance was formed : EG1: mean = 866,93 kg (621,68 kg-1011,76 kg); EG2: mean = 1193,00 kg (1011,76 kg-1251,49 kg); EG3: mean = 1309,37 kg (1251,49 kg -1393,20 kg); EG4: mean = 1497,59 kg (1393,20 kg-1593,53 kg); EG5: mean = 1664,78 kg (1593,53 kg -1727,32kg) e EG6: mean = 1973,85 kg (1727,32 kg -2422,19 kg).(Co) variance functions were estimated by restricted maximum likelihood (REML) using the GIBBS3F90 package. The heritability estimates for MY raised as the environmental gradient increased, varying from 0.20 to 0.40. However, in intermediate to favorable environments, the heritability estimates obtained with Considerable genotype-environment interaction was found for MY using reaction norms. For genetic evaluation of MY is necessary to consider heterogeneity of variances to model the residual variance.

Ethical Care of the Self and the Teacher in the Pedagogical Relationship: Reflections Based on the Latest Foucault

Our conception of education is that it is the responsible action whereby man becomes human, trains and faces the challenges that life and the world present, as man enters a larger, shared cultural tradition and thus joins the world. However such sharing implies that we must not just rely on tradition, but remain open to new ideas. It is essential for schooling to preserve a field where the art of living intersects with the world for which future generations are being prepared. It is in this field of intersection that this essay seeks to discuss Michel Foucault's thought, care of the self and the role played by others in the acquisition of ethical attitudes pertaining to one's conduct in life. Through reconstructing Foucault's ideas, we elaborate on the hypothesis that, before morally shaping students, teaching them values, or aiding in their skill acquisition in the sense prevailing in schooling today, it is important to understand the notion of care of the self (and how the notion implies interaction with others for effective care of the self). Care of the self is vital for thoroughly understanding the relationships between ethics and education in school. We particularly examine how Foucault's ideas and his analysis of the teacher's role in shaping the student's life conduct can help educators rethink pedagogical action in an ethical sense and find within it a certain openness to the formation of attitudes in educators and students

Use of Chemometric Tools to Determine the Source of Metals in Sediments of the Rivers of the Turvo/Grande Hydrographical Basin, Sao Paulo State, Brazil

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

High Dispersivity Bacterial Cellulose/Carbon Nanotube Nanocomposite for Sensor Applications

Bacterial cellulose (BC) has established to be a remarkably versatile biomaterial and can be used in wide variety of applied scientific endeavors, especially for medical devices. In fact, biomedical devices recently have gained a significant amount of attention because of increased interesting tissue-engineered products for both wound care and the regeneration of damaged or diseased organs. The architecture of BC materials can be engineered over length scales ranging from nano to macro by controlling the biofabrication process, besides, surface modifications bring a vital role in in vivo performance of biomaterials. In this work, bacterial cellulose fermentation was modified with carbon nanotubes for sensor applications and diseases diagnostic. SEM images showed that polymer modified-carbon nanotube (PVOH-carbon nanotube) produced well dispersed system and without agglomeration. Influences of carbon nanotube in bacterial cellulose were analyzed by FTIR. TGA showed higher thermal properties of developed bionanocomposites.

Custo de produção e lucratividade da cultura do amendoim no município de Jaboticabal, São Paulo

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

Utilização de lodo de esgoto na produção de mudas de aroeira-pimenteira

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

Establishment of peritoneal liquid electrophoretogram from healthy horses and horses submitted to experimentally induced intestinal obstruction

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

Methicillin-resistant Staphylococcus aureus of lineage ST398 as cause of mastitis in cows

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Reprodução induzida e desenvolvimento inicial do Jundiá Leiarius marmoratus (PISCES: SILURIDAE)

Pós-graduação em Ciências Biológicas (Zoologia) - IBB

Reabilitação estético-funcional sobre implantes agulhados e endósseos

This report shows the resolution of a case study whose aim was promote the aesthetic and functional rehabilitation of upper left hemi-arch over endosseous and needle implant prostheses. To improve the position of the needle implants, we performed the bucco-palatal bending of needles splinting them with composite resin; we removed the screwed implant prosthesis in the regions of the premolars (24 and 25) and molar (26). The mini-abutments of the last two implants were replaced, and in the first premolar and canine, we used cemented abutments due to implant angulation having planned soldering because of implant size and contact with one needle implant that could interfere with intimate contact bone/implant damaging biomechanics. Pick-up impressions were performed with an open tray, using a retractor cord in the needle implants and respective transfer copings. Therefore, models were related on semi-adjustable articulator after a face-bow recording and interocclusal indexes. After working cast fabrication and try-in of infra-structures, these were adjusted and related into the articulator again. Then, after ceramic build-up, adjustments, finishing, and torque, chemically-activated resin cement was applied on units 21 to 24. At the end of the case, we concluded that a good aesthetic and functional rehabilitation depends on thorough knowledge of techniques for each clinical situation.