Fauna de solo: aspectos gerais e metodológicos.

Fauna de solo como agente de modificações de processos no solo. Organização de comunidades. Estrutura da comunidade. A densidade e a diversidade das comunidades de solo como indicadora de modificações ambientais . Metodologias de estudo da fauna de solo.bitstream/CNPAB-2010/27350/1/doc112.pd

Hermitian Yang-Mills instantons on resolutions of Calabi-Yau cones

We study the construction of Hermitian Yang-Mills instantons over resolutions of Calabi-Yau cones of arbitrary dimension. In particular, in d complex dimensions, we present an infinite family, parametrised by an integer k and a continuous modulus, of SU(d) instantons. A detailed study of their properties, including the computation of the instanton numbers is provided. We also explain how they can be used in the construction of heterotic non-Kahler compactifications.Comment: 20 pages, 1 figure; typos corrected, section 3.1 expande

Análise do custo de produção e rentabilidade do cultivo do maracujazeiro na região do Submédio São Francisco.

Tendo em vista a importância econômica e social que tem a exploração do maracujá no Submédio São Francisco, procurou-se, nesta pesquisa, analisar os custos de produção e a rentabilidade da exploração de maracujá nesse agropólo. Como trata-se de um cultivo que demanda elevados custos de produção, é importante que o produtor, além de alcançar uma alta produtividade, obtenha também uma rentabilidade significativa

Análise dos custos de produção e rentabilidade da cultura da banana na região do Vale do Submédio São Francisco.

Este trabalho teve como objetivo analisar o custo de produção e a rentabilidade da banana produzida na região do Submédio São Francisco

Trend of prices for mangoes produced and commercialized in the sub-middle São Francisco region, Brazil.

The study had the purpo se of showing the seasonal mango price variation produced and commercialized from 1995 to 2003 in the Sub-middle São Francisco region

Obstetric Outcome of Twin Pregnancies Conceived by in Vitro fertilization (IVF) and Ovulation Induction Compared with those Conceived Spontaneously

Introduction: Uncontrolled studies suggest that twins conceived by in vitro fertilization have increased rates of preterm birth and low birth weight and would warrant increased antenatal monitoring. The objective of this study was to compare the obstetric outcome of twin pregnancies conceived by in vitro fertilization or intracytoplasmic sperm injection (IVF/ICSI) and ovulation induction with those conceived spontaneously. Methods: All twin deliveries achieved by IVF/ICSI (n=235) and ovulation induction (n=68) from September 1994 through December 2010 were evaluated. Both groups and an additional control group who conceived spontaneously (n=997) and was delivered during the same time period were compared with each other. Results: In univariate analysis, patients who conceived with the assistance of IVF/ICSI had a significantly higher risk of being older (p=0.01), nulliparous (p=0.01), having hypertensive disorders (p=0.012), gestational diabetes mellitus (p=0.031), cesarean section (p=0.008) and lower gestational age at birth, compared with the control group. Newborns had similar birthweights in all groups (2229±544g; 2102±619g; 2251±553g). Spontaneous pregnancies had a higher risk of being monochorionic 38.4% versus 16.2% and 10.2% (p=0.01). Multivariate analysis however showed that patients who conceived with the assistance of IVF/ICSI only had a higher risk of gestational diabetes (OR=1.91,95%CI 1.168-3.120; p=0.01). Conclusions: Our study shows that twin pregnancies conceived with the assistance of IVF/ICSI had a higher risk of gestacional diabetes and a lower gestacional age at birth. Birthweights were similar, as was the incidence of perinatal death, low birth weight infants, and congenital malformations

Análise do custo de produção e rentabilidade com maracujá explorado na região do Submédio São Francisco.

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Female Sterilization: Comparative Study of Hysteroscopic versus Laparoscopic Sterilization

Overview and Aims: Female sterilization is increasingly requested as a contraceptive method. Hysteroscopic sterilization by transcervical placing of Essure® micro-inserts in the initial portion of the tubes is a recent alternative to laparoscopic sterilization. The objective of this study is to evaluate the safety and effectiveness of hysteroscopic versus laparoscopic sterilization. Study Design: Retrospective cohort study. Population: A total of 98 women undergoing sterilization in an outpatient clinic between July 2005 and July 2009. Methods: Patients’ age, associated diseases, anesthesic risk, procedure time, discomfort, adverse events and success rate were evaluated. Results: Mean age at surgery was 37.8 years (19-49), and there were no statistically significant differences between the groups regarding this parameter. Women in the hysteroscopic group had a significant number of associated diseases (98% versus 47%), obesity (31% versus 6%), and anesthesic risk (ASA III- 31% versus 0%). The mean duration of the procedure was the same for both techniques (laparoscopy 28 minutes and hysteroscopy 26 minutes). All laparoscopic sterilizations were successfully completed. In the hysteroscopic group 4% failed to complete the technique. There were no cases of severe pain. Women in the hysteroscopy group reported pain less frequently (40% versus 57%, χ2 p<0.05). Long term success rate was similar in both groups (96% for hysteroscopy and 98% for laparoscopy). Conclusions: In spite of a higher incidence of associated diseases, obesity and anesthetic risks in the hysteroscopy group, there were no significant differences in the duration of the procedure, adverse events and success rate. The hysteroscopic approach can therefore be considered an alternative to laparoscopy, eliminating the need for incisional surgery and for general anaesthesia. If women with high surgical risk and several associated diseases can safely undergo this procedure, it could well become the preferred method for women who want a permanent and irreversible contraceptive method