Results 21 to 30 of about 15,112 (263)

Strategies for Engineering Reproductive Sterility in Plantation Forests

open access: yesFrontiers in Plant Science, 2018
A considerable body of research exists concerning the development of technologies to engineer sterility in forest trees. The primary driver for this work has been to mitigate concerns arising from gene flow from commercial plantings of genetically engineered (GE) trees to non-GE plantations, or to wild or feral relatives.
Fritsche, Steffi   +4 more
openaire   +4 more sources

The Influence of raw and Sterilized Milk on Growth and Reproduction in Rats [PDF]

open access: yesJournal of Hygiene, 1936
1. Groups of young rats have been fed for periods up to one year on a diet consisting of raw or sterilized milk, with a biscuit made from white flour, to which were added supplements of iron, copper and manganese salts. By this method two samples of commercially sterilized milks, prepared by two different processes, have been compared with the ...
H A, Channon, H J, Channon
openaire   +2 more sources

Direitos reprodutivos de mulheres e homens face à nova legislação brasileira sobre esterilização voluntária Reproductive rights of women and men in light of new legislation on voluntary sterilization in Brazil

open access: yesCadernos de Saúde Pública, 2003
O objetivo deste trabalho é analisar os impactos e as possíveis mudanças que a implementação da nova legislação sobre planejamento familiar teve nas práticas reprodutivas, especialmente na esterilização voluntária, e observar se os diretos reprodutivos ...
Elza Berquó, Suzana Cavenaghi
doaj   +1 more source

Reproductive isolation caused by azoospermia in sterile male hybrids of Drosophila [PDF]

open access: yesEcology and Evolution, 2020
AbstractRecently diverged populations in the early stages of speciation offer an opportunity to understand mechanisms of isolation and their relative contributions. Drosophila willistoni is a tropical species with broad distribution from Argentina to the southern United States, including the Caribbean islands.
Hunter Davis   +2 more
openaire   +3 more sources

Dominance of sterilization and alternative choices of contraception in India: an appraisal of the socioeconomic impact. [PDF]

open access: yesPLoS ONE, 2014
BACKGROUND: The recent decline in fertility in India has been unprecedented especially in southern India, where fertility is almost exclusively controlled by means of permanent contraceptive methods, mainly female sterilization, which constitutes about ...
Isabel Tiago de Oliveira   +2 more
doaj   +1 more source

Vasectomy and vasectomy reversal: An update

open access: yesIndian Journal of Urology, 2011
Vasectomy is an elective surgical sterilization procedure for men that is intended to obstruct or remove a portion of both vas deferens, thereby preventing sperm from moving from the testes to the ejaculatory ducts.
Ranjith Ramasamy, Peter N Schlegel
doaj   +1 more source

Effect of X-ray irradiation on development, flight, and reproduction of Spodoptera litura

open access: yesFrontiers in Physiology, 2022
Spodoptera litura is an omnivorous pest that has spread globally. Because irradiation sterilization technology has a great potential for control of S. litura, the effect of 25–150 Gy doses of X-rays on pupal survival, flight and reproductive variables of
Shan Jiang   +6 more
doaj   +1 more source

Genetic engineering of reproductive sterility in forest trees [PDF]

open access: yesMolecular Breeding, 1995
Containment of transgenes inserted into genetically engineered forest trees will probably be necessary before most commercial uses are possible. This is a consequence of (1) high rates of gene dispersal by pollen and seed, (2) proximity of engineered trees in plantations to natural or feral stands of interfertile species, and (3) potentially ...
Steven H. Strauss   +3 more
openaire   +1 more source

Experimental Tests of Nonsurgical Reproductive Inhibitors to Prevent Coyote Reproduction

open access: yesHuman-Wildlife Interactions, 2018
Sterilization is an effective nonlethal tool to reduce livestock depredation by coyotes (Canis latrans) because adults without pups to provision are less likely to kill livestock. Surgical sterilization is costly and invasive, so identifying non-surgical
Julie K. Young   +3 more
doaj   +1 more source

Modern contraceptive use among women in need of family planning in India: an analysis of the inequalities related to the mix of methods used

open access: yesReproductive Health, 2021
Plain Language Summary Ensuring universal access to sexual and reproductive health and reproductive rights for all women is one of the Sustainable Development Goals, promoted by the United Nations and adopted by 193 countries, including India. To address
Fernanda Ewerling   +6 more
doaj   +1 more source

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