5,313 research outputs found
Biodiversidade e melhoramento participativo: razão e prática Em busca de alternativas de caráter agronômico, nutricional, funcional e econômico.
bitstream/item/59192/1/biodiversidade-Iraja.pd
Agricultores guardiões de sementes e o desenvolvimento in situ de cultivares crioulas.
bitstream/CPACT-2009-09/11716/1/artigo-Bevilaq_sement.pd
Odynophagia and neck pain after exercise
info:eu-repo/semantics/publishedVersio
Contraceptive Choices Pre and Post Pregnancy in Adolescence
STUDY OBJECTIVE: The main aim of this study is to evaluate the impact of adolescent pregnancy in the future contraceptive choices. A secondary aim is to verify whether these choices differ from those made after an abortion.
DESIGN: Retrospective study.
SETTING:Adolescent Unit of a tertiary care center.
PARTICIPANTS:212 pregnant teenagers.
INTERVENTIONS: Medical records review.
MAIN OUTCOME MEASURES:Intended pregnancy rate and contraceptive methods used before and after pregnancy. For contraceptive choices after pregnancy we considered: Group 1 - teenagers who continued their pregnancy to delivery (n = 106) and Group 2 - the same number of adolescents who chose to terminate their pregnancy.
RESULTS: The intended pregnancy rate was 14.2%. Prior to a pregnancy continued to delivery, the most widely used contraceptive method was the male condom (50.9%), followed by oral combined contraceptives (28.3%); 18.9% of adolescents were not using any contraceptive method. After pregnancy, contraceptive implant was chosen by 70.8% of subjects (P < .001) and the oral combined contraceptives remained the second most frequent option (17.9%, P = .058). Comparing these results with Group 2, we found that the outcome of the pregnancy was the main factor in the choices that were made. Thus, after a pregnancy continued to delivery, adolescents prefer the use of LARC [78.4% vs 40.5%, OR: 5,958 - 95% (2.914-12.181), P < .001)], especially contraceptive implants [70.8% vs 38.7%, OR: 4.371 - 95% (2.224-8.591), P < .001], to oral combined contraceptives [17.9% vs 57.5%, OR: 0.118 - 95% CI (0.054-0.258), P < .001].
CONCLUSION:Adolescent pregnancy and its outcome constitute a factor of change in future contraceptive choice
Agrobiodiversidade como base para sistemas agrícolas sustentáveis para a agricultura familiar.
bitstream/item/78746/1/Documento-354.pd
Astragaline levels in creole and breeding lines of common bean from Rio Grande do Sul State, Brazil.
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Previous issue date: 2013-03-28201
Predicting the critical density of topological defects in O(N) scalar field theories
O(N) symmetric field theories describe many critical
phenomena in the laboratory and in the early Universe. Given N and ,
the dimension of space, these models exhibit topological defect classical
solutions that in some cases fully determine their critical behavior. For N=2,
D=3 it has been observed that the defect density is seemingly a universal
quantity at T_c. We prove this conjecture and show how to predict its value
based on the universal critical exponents of the field theory. Analogously, for
general N and D we predict the universal critical densities of domain walls and
monopoles, for which no detailed thermodynamic study exists. This procedure can
also be inverted, producing an algorithm for generating typical defect networks
at criticality, in contrast to the canonical procedure, which applies only in
the unphysical limit of infinite temperature.Comment: 4 pages, 3 figures, uses RevTex, typos in Eq.(11) and (14) correcte
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