Monika Piotrowska · The Philosophical Quarterly · 2017
Abstract With an increasing number of ways to ‘assist’ reproduction, some bioethicists have started to wonder what it takes to become a genetic parent. It is widely agreed that sharing genes is not enough to substantiate the parent–offspring relation, but what is? Without a better understanding of the concept of reproduction (and what it means to say that an organism has reproduced), our thinking about parent–offspring relations and the ethical issues surrounding them risk being unprincipled. Here, I address that problem by offering a principled account of reproduction—the Overlap, Development and Persistence account—which I believe best captures the meaning of ‘genetic parenthood’.
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Guichard, Jean, Huteau, Michel · Cairn.info · 2022
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Jennifer Noonan · 2013
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J Testart · PubMed · 1999
La lutte contre la sterilite a toujours ete une preoccupation humaine, meme si la periode prescientifique ne savait proposer que des remedes sans reel effet. Il est cependant interessant de remarquer que, symetriquement, la lutte contre la fertilite disposait au contraire de solutions.
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Pierre Bourdıeu · 2018
The specific role of the sociology of education is assumed once it has established itself as the science of the relations between cultural reproduction and social reproduction. This occurs when it endeavours to determine the contribution made by the educational system to the reproduction of the structure of power relationships and symbolic relationships between classes, by contributing to the reproduction of the structure of the distribution of cultural capital among these classes. The transmission from generation to generation of accumulated information, classical theories tend to dissociate the function of cultural reproduction proper to all educational systems from their function of social reproduction. The greater reliability of the survey carried out by the Centre of European Sociology of the European museum public is due to the fact that it was based upon the degree of effective practice and not on the statements of those being questioned.
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Princeton University Press eBooks · 2020
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R. C. Waterman, T. W. Geary · 2012
Early weaning in Northern Great Plains beef cattle production systems: II. Development of replacement heifers weaned at 80 or 215 d of age$
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Williot, P. · 2002
This chapter borrows data obtained from the Siberian esturgeon and when it is possible results from sturio and baeri are reported. The first part is about the constitution and the preparation of a stock of genitors based on rules such as breeding standards as well as criterias allowing the preselection of genitors. A second part deals with the selection of the best animals for reproduction. Hormonal injections, gametes taking and their observation are discussed in a third part. In the fourth one, fecundation and incubation are described with details. Endly, some other data linked with the reproduction are provided. / Ce chapitre emprunte des données obtenues sur l'esturgeon sibérien, lorsque cela est possible des résultats provenant du sturio et du baeri sont rapportés. On consacre un premier paragraphe à la constitution et à la préparation d'un stock de géniteurs depuis les modalités d'élevage jusqu'aux critères permettant la présélection des géniteurs. Un 2° paragraphe traite de la sélection des meilleurs animaux pour la reproduction. L'injection hormonale, le prélèvement des gamètes et de leur observation sont abordés dans un 3° paragraphe. Dans le 4°, la fécondation et l'incubation sont détaillés. Enfin, quelques autres données liées à la reproduction sont fournies.
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Pankhurst, NW (15478004) · Figshare · 1998
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Short Description · 2015
An agile, aposomatic mimetic crab. The carapace is 3 cm in diameter and brownish, it has golden yellow rings on joints of walking legs. Carapace disc-like, with tridentate front and antero-lateral margins with four acute teeth. All walking legs have a row of spines on anterior margin of merus. Chelipeds have spinose merus and carpus. The palm has a small pilose area proximally on inner surface and the groove is also pilose proximally on upper surface. It is active during daytime with feeding peaks at sunset. It is strictly herbivorous, using its small claws to pick off the fine film of algal growth. BIOLOGY/ECOLOGY Dispersal mechanisms Long-living planktonic larvae.
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McCormick, John, Nash, Adam · Deakin Research Online (Deakin University) · 2011
\n\t\t\t\t\t&quot;Reproduction&quot; is a mixed reality installation that investigates the flow of data between the material world and synthetic worlds, in particular realtime 3D environments, through the creation of a persistent realtime 3D environment populated with agent entities that evolve over the duration of the exhibition in response to the actions of the human visitors to the gallery.<br />\n\t\t\t\t
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McCormick, John, Nash, Adam · Deakin Research Online (Deakin University) · 2012
\n\t\t\t\t\t"Reproduction" is a mixed reality installation that investigates the flow of data between the material world and synthetic worlds, in particular realtime 3D environments, through the creation of a persistent realtime 3D environment populated with agent entities that evolve over the duration of the exhibition in response to the actions of the human visitors to the 10 metre dome.\n\t\t\t\t
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Sabelis, M.W., Helle, W., Sabelis, M.W. · Data Archiving and Networked Services (DANS) · 1985
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Perelman, Bob · Iowa Research Online (The University of Iowa) · 1996
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Burton, Frances D. · TSpace (University of Toronto) · 2005
A juvenile male macaque mounts a juvenile female on a mountain in Taipo/Hong Kong. The juvenile male thrusts. The female leaves.
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James Watmough B · 2015
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Sandall, J · Research Portal (King's College London) · 2004
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M.W. Sabelis · UvA-DARE (University of Amsterdam) · 1985
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Carmen, William J. · Digital Commons - University of South Florida (University of South Florida) · 2004
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Charles B. Miller · 2023
Abstract Female copepods do not spawn massively once then die, like squid or salmon. When mature and mated, they spawn numerous times. Amounts, rates, and longevity of egg production have been observed for many species under varied conditions of temperature and food availability. Two strategies dominate: free release of numerous eggs into the water vs. carrying fewer eggs to hatching of in membrane sacs secreted at the genital opening. Sac spawning provides the protection of the predator escape capacity of the female towing her eggs. Roughly three-times more eggs are required and provided by free-spawners for the same hatchling output. Egg construction is covered from yolk to chorion. Some freely spawned eggs, like those of Calanus released near the surface sink, shown with the author’s data. Others, like those spawned at great depths by Neocalanus, are rich in oil and float and hatch where the nauplii can feed. Bios for Jeff Runge and Barbara Niehoff cover two of the leading experts on copepod spawning rates. Results from a visiting scientist tour by Marina Sabatini of Argentina to work with Thomas Kiørboe of Denmark are detailed regarding the free-spawner vs. sac-spawner strategies.
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