Citations with the tag: REPRODUCTION
Results 1 - 50
- Learning to knock out male infertility
May, Mike // Environmental Health Perspectives; Mar1998, Vol. 106 Issue 3, pA132No abstract available.
- Determinate vs. indeterminate laying in the house sparrow
Anderson, Ted R. // Auk (American Ornithologists Union); Oct1989, Vol. 106 Issue 4, p730No abstract available.
- Steroid hormones in relation to territoriality, breeding density, and parental behavior in male yellow-headed blackbirds
Orians, Gordon H.; Wingfield, John C.; Beletsky, Les D. // Auk (American Ornithologists Union); Jan1990, Vol. 107 Issue 1, p60No abstract available.
- Intake rates and the timing of crossbill reproduction
Benkman, Craig W. // Auk (American Ornithologists Union); Apr1990, Vol. 107 Issue 2, p376No abstract available.
- Reproductive implications of egg-size variation in the black brant
Sedinger, James S.; Flint, Paul L. // Auk (American Ornithologists Union); Oct1992, Vol. 109 Issue 4, p896No abstract available.
- Seasonal decline in clutch size of the marsh tit (Parus palustris) in relation to date-specific survival of offspring
Smith, Henrik G. // Auk (American Ornithologists Union); Oct1993, Vol. 110 Issue 4, p889No abstract available.
- Breeding biology of white-winged trumpeters Psophia leucoptera in Peru
Sherman, Peter T. // Auk (American Ornithologists Union); Apr1995, Vol. 112 Issue 2, p285No abstract available.
- Mechanisms of short incubation period in brood-parasitic cowbirds
Kattan, Gustavo H. // Auk (American Ornithologists Union); Apr1995, Vol. 112 Issue 2, p335No abstract available.
- Effects of handicapping on female condition and reproduction in treeswallows (Tachycineta bicolor)
Winkler, David W.; Allen, Paul E. // Auk (American Ornithologists Union); Jul1995, Vol. 112 Issue 3, p737No abstract available.
- New Vatican instruction.
Winkler, David W.; Allen, Paul E. // Commonweal; 3/27/87, Vol. 114 Issue 7, p163Editorial. The Vatican's `Instruction on Respect for Human Life in its Origin and on the Dignity of Procreation' received a wide reception in the media. However, the Vatican's conclusions about medical science and human dignity are rather narrow. The document is scientifically well-informed. ...
- Reduction of geitonogamy: Flower abscission for departure of pollinators.
ITO, ERIKO; KIKUZAWA, KIHACHIRO // Ecological Research; Mar2003, Vol. 18 Issue 2, p177Overproduction of flowers increases the attractiveness of a plant to pollinators, but results in increased geitonogamy. In general, flower abscission has been considered to be an event subsequent to the overproduction of flowers. We observed pollinator behavior in Tilia, a self-incompatible,...
- Crazy making: Embryos and Gestational mothers.
Annas, G.J. // Hastings Center Report; Jan/Feb91, Vol. 21 Issue 1, p35Discusses the issues and problems caused by the new reproductive technologies and questions whether or not we need new laws to deal with these problems. The case of the leftover embryos; The Anna Johnson case; The twin studies; Problems with a genetic definition of motherhood; More.
- The ethics of babymaking.
Sherwin, Susan // Hastings Center Report; Mar/Apr95, Vol. 25 Issue 2, p34Reviews the report `Proceed with Care: Final Report of the Royal Commission on New Reproductive Technologies.'
- The fertility decline in the Dutch province of Limburg, 1880-1960: On understanding historical...
Engelen, Theo // History of the Family (Elsevier Science); 1997, Vol. 2 Issue 4, p405Presents an indepth look at changes which have occurred in reproductive behavior in the Dutch province of Limburg, while analyzing the economic motivation and mental acception of the introduction of neoMalthusian behavior. Geographical information on Limburg; When studies on fertility changes...
- Reproductive season, clutch parameters and oocyte size of the johnnydarter Etheostoma nigrum from southwestern Mississippi
Baker, John A.; Parrish, Jeffrey D.; Heins, David C. // American Midland Naturalist; Apr1991, Vol. 125 Issue 2, p180No abstract available.
- Activity, temperature, age, size and reproduction in the parthenogenetic whiptail lizard Cnemidophorus dixoni in the Chinati Mountains inTrans-Pecos Texas
Walker, James M.; Cordes, James E.; Scudday, James F.; Kilambi, Raj V.; Cohn, C. C. // American Midland Naturalist; Oct1991, Vol. 126 Issue 2, p256No abstract available.
- Patterns of fecundity and age class distribution of Rhaphidophorid ""camel crickets" (Ceuthophilus longipes and C. carlsbadensis) from Carlsbad Cavern
Crawford, Clifford S.; Northup, Diana E. // American Midland Naturalist; Jan1992, Vol. 127 Issue 1, p183No abstract available.
- The influence of precipitation on reproduction by myotis bats in British Columbia
Brigham, R. Mark; Grindal, Scott D.; Barclay, Robert M. R. M. R. Barclay; Collard, Tod S. // American Midland Naturalist; Oct1992, Vol. 128 Issue 2, p339No abstract available.
- Mating system in natural populations of eastern white pine in Quebec
Beaulieu, J.; Simon, J.-P. // Canadian Journal of Forest Research; Oct1995, Vol. 25 Issue 10, p1697No abstract available.
- The attractive factor guiding conception.
Kleiner, E.; Ashisha // Mothering; Winter92, Issue 62, p22Discusses the ovarian follicle fluid released by the egg cells in order to attract the sperm cells. Eggs aren't passive in the fertilization process; Discovery that this fluid attracts only the most active sperm; Michael Eisenbach and David L. Garbers.
- Full exposure.
Kleiner, E.; Ashisha // New Scientist; 01/31/98, Vol. 157 Issue 2119, p3Editorial. Focuses on human procreation, while referring to in vitro fertilization (IVF) researchers who want to explore the possibility of growing human sperm inside the bodies of mice. Aims of the researchers; Technique being used; Problems that can be encounter with the fertility research.
- Registries of congenital anomalies: EUROCAT
Dolk, H.; Lechat, M. F. // Environmental Health Perspectives Supplements; 1993 Supplement 2, Vol. 101, p153No abstract available.
- The Vatican Document on Bioethics: Two Responses.
Dolk, H.; Lechat, M. F. // America; 3/28/1987, Vol. 156 Issue 12, p246Opinion. The Vatican document on bioethics fails to ground its teachings about sex, love and parenthood in the actual experiences of married couples or infertile would-be parents. A siege mentality appears to characterize the thinking behind thedocument. Pros & cons of the document. Written...
- The Vatican Document on Bioethics: Two Responses.
Dolk, H.; Lechat, M. F. // America; 3/28/1987, Vol. 156 Issue 12, p247Opinion. The Vatican document on bioethics deserves careful study. It touches upon some very basic issues and human values. Careful study could prevent polarization which challenges the authority of the magisterium. Reflection is called for, not revolution. Written by Richard A. McCormick,...
- New Vatican Instruction on Human Life and Procreation.
Dolk, H.; Lechat, M. F. // America; 3/28/1987, Vol. 156 Issue 12, p245Editorial. The Vatican document, `Instruction on Respect for Human Life in Its Origin and on the Dignity of Procreation: Replies to Certain Questions of the Day' was issued on March 10, 1987. In the US there are many people who will resist the document's suggestion that its moral viewpoints be...
- Taking control.
Salaman, Racel // Business Mexico; Aug1997, Vol. 7 Issue 8, p18Opinion. Presents information on reproduction in Mexico. How one can receive free contraceptive care; Statistical information relating to population in Latin American countries; Comments from Rainer Rosenbaum representative of United Nations Population Fund (UNFPA) in Mexico and director for Cuba.
- Female-Female Pairing in Ring-Billed Gulls
Ryder, John P.; Somppi, Patricia Lynn // Auk (American Ornithologists Union); Jan1979, Vol. 96 Issue 1, p1No abstract available.
- The reproductive effects of dietary heptachlor in mink (Mustela vison)
Polin, D.; Crum, J. A.; Braselton, W. E. E. Braselton; Aulerich, R. J.; Bursian, S. J. // Archives of Environmental Contamination & Toxicology; Feb1993, Vol. 24 Issue 2, p156No abstract available.
- Effects of bis(tri-n-butyltin)oxide in Japanese quail exposed duringegg laying period: an interlaboratory comparison study
Ebert, Eugen; Grau, Raimund; Hilbig, Volker; Munk, Reinhart; Schlatterer, Bert; Coenen, Theodora M. M. // Archives of Environmental Contamination & Toxicology; May1993, Vol. 24 Issue 4, p440No abstract available.
- Effects of DDE and food stress on reproduction and body condition ofringed turtle doves
Mitchell, Christine A.; Keith, James O. // Archives of Environmental Contamination & Toxicology; Aug1993, Vol. 25 Issue 2, p192No abstract available.
- Reproductive regulation in the female Japanese minnow, Pseudorasboraparva (Cyprinidae)
Katano, O.; Maekawa, K. // Environmental Biology of Fishes; Jun1997, Vol. 49 Issue 2, p197The Japanese minnow, Pseudorasbora parva, is a multiple spawner thatlays eggs repeatedly during the spawning season. In laboratory aquaria, 19 of 63 females did not spawn, whereas 44 other females laid 167 to 6285 eggs in 1 to 14 mating sequences. Neither fish density norsex ratio (number of...
- The natural history of a monogamous coral-reef fish, Valenciennea strigata (Gobiidae): 2. Behavior, mate fidelity, and reproductive success
Reavis, R. H. // Environmental Biology of Fishes; Jun1997, Vol. 49 Issue 2, p247This study examined the behavior and reproduction of a monogamous coral-reef fish, Valenciennea strigata, to determine mate fidelity andthe proximate causes of monogamy. Most fish were found in monogamous pairs that remained together over several rounds of reproduction. Pairs stayed within...
- Toxicant Effects on Reproduction and Disruption of the Egg-Length Relationship in Grass Shrimp
Cairns, Jr., J.; Buikema, Jr., A. L.; Niederlehner, B. R. // Bulletin of Environmental Contamination & Toxicology; Jan1980, Vol. 24 Issue 1, p31No abstract available.
- Colony size as a species character in massive reef corals
Soong, K. // Coral Reefs; 1993, Vol. 12 Issue 2, p77No abstract available.
- Seasonality and lunar periodicity in the reproduction of Pocilloporid corals
Tanner, J. E. // Coral Reefs; 1996, Vol. 15 Issue 1, p59No abstract available.
- Reproduction in a parthenogenetic lizard: with a discussion of optimal clutch size and a critique of the clutch weight/body weight ratio
Cuellar, Orlando // American Midland Naturalist; Apr1984, Vol. 111 Issue 2, p242No abstract available.
- Reproduction by worker honey bees (Apis mellifera L.)
Page, Jr., R. E.; Rickson, Jr., E. H. // Behavioral Ecology & Sociobiology; Aug1988, Vol. 23 Issue 2, p117No abstract available.
- Reproduction and Development of the Pygmy Spotted Skunk (Spilogale pygmaea)
Baker, Rollin H.; Rybak, Elaine N.; Teska, William R. // American Midland Naturalist; Apr1981, Vol. 105 Issue 2, p390No abstract available.
- Seasonal flux.
Baker, Rollin H.; Rybak, Elaine N.; Teska, William R. // Joe Weider's Muscle & Fitness; Nov92, Vol. 53 Issue 11, p30States that sperm quality deteriorates in warm climates and that summer is the worst time for procreating, according to a report in `Fertility and Sterility.' How the effects of daylight may be a cause; What happens in air-conditioned environments; More.
- Reproductive rights.
van der Gaag, Nikki // New Internationalist; Jul98, Issue 303, p1Opinion. Discusses the issue of abortion. Measures anti-abortion activists are prepared to take; Mention of the author's experience of pregnancy; Shooting deaths of several doctors in Canada who administered abortions.
- Alternative spawning tactics of female angelfish according to two different contexts of sex change
Sakai, Yoichi // Behavioral Ecology; Jul/Aug1997, Vol. 8 Issue 4, p372Social conditions for sex change and reproductive success were studied in the haremic marine angelfish, Centropyge ferrugatus, in the coral reefs of southern Japan. In this species the largest female in a harem changed sex not only after disappearance of the dominant male but also occasionally...
- Conceiving solutions.
BAKER, DEBRA // ABA Journal; Dec98, Vol. 84 Issue 12, p78Reports on the efforts of the Committee on the Laws of Assisted Reproductive Technologies and Genetics to formulate a guideline for legislators and judges when they begin drafting new laws regarding reproductive technology. Goals of the committee for the move; Comments from Maurice Kutner of...
- Reproductive behaviour of spadefoot toads (Pelobates fuscus): daily sex ratios and males' tacits, ages, and physical condition.
Eggert, Christophe; Guyetant, Robert // Canadian Journal of Zoology; Jan2003, Vol. 81 Issue 1, p46Studies the reproductive behavior of spadefoot toads. Daily sex ratios; Migration pattern; Male competition for mates.
- 3pn Formation Rate Higher with Conventional Insemination Than with ICSI.
Eggert, Christophe; Guyetant, Robert // Fertility Weekly; 3/1/2004, p2Discusses the study "Estimation of Second Polar Body Retention Rate After Conventional Insemination and Intracytoplasmic Sperm Injection: In Vitro Observations From More Than 5000 Human Oocytes," by Richard Porter, et al, which appeared in a 2003 issue of the "Journal of Assisted Reproduction...
- Reproductive health: Widening horizons.
Vaughan, J. Patrick; AbouZahr, Carla // Bulletin of the World Health Organization; 2000, Vol. 78 Issue 5, p569Editorial. Introduces series of articles concerning reproductive health. Interventions for reducing the burden of disease associated with sex and reproduction; Ways of dealing with the dual challenge of broadening the reproductive health agenda while promoting sector reform; Impact of...
- Variations in sexual and asexual reproduction of Scirpus mariqueter along an elevational gradient.
Sun, Shucun; Gao, Xianming; Cai, Yongli // Ecological Research; Jun2001, Vol. 16 Issue 2, p263In order to assess the importance of sexual and asexual reproduction during the life history of Scirpus mariqueter, its reproductive and growth characters were concurrently examined along an elevational gradient (from low elevation to high elevation). The proportions of flowering shoot and...
- Indian Men with Higher Socioeconomic Status Are More Likely to Be Knowledgeable About Reproductive Health.
Mahler, K. // International Family Planning Perspectives; Sep2000, Vol. 26 Issue 3, p143Relates the results of the Uttar Pradesh Male Reproductive Health Survey administered between November 1995 to April 1996 in India. Fatalistic pregnancy attitudes; Low levels of knowledge about sexual and reproductive health by the men; Assessment on knowledge about sexually transmitted...
- Editorial.
Penzias, Alan S. // Reproductive Technologies; May2001, Vol. 10 Issue 3, p121Editorial. Introduces a series of articles about the psychological impact of reproductive technologies, the biological possibilities and pitfalls of assisted reproduction and the legal environment in reproductive procedures.
- Unusual Timing of Copulations in the Australian Brush-Turkey.
Birks, Sharon M. // Auk (American Ornithologists Union); Jan1999, Vol. 116 Issue 1, p169Presents the results of a study on the timing of copulations in Australian Brush-turkeys. Study area and methods; Results and discussion.
- TRACING NUTRIENT ALLOCATION TO REPRODUCTION WITH STABLE ISOTOPES: A PRELIMINARY INVESTIGATION USING COLONIAL WATERBIRDS OF GREAT SLAVE LAKE.
Hobson, Keith A.; Sirois, Jacques // Auk (American Ornithologists Union); Jul2000, Vol. 117 Issue 3, p760Presents information on a study which investigated the origin of lipids and proteins allocated to reproduction by migratory waterbirds that are breeding at Great Slave Lake, Northwest Territories. Significance of studies on allocation of resources to reproduction; Methodology of the study;...
