Results 11 to 20 of about 656,990 (357)

Flehmen, Osteophagia, and Other Behaviors of Giraffes (Giraffa giraffa angolensis): Vomeronasal Organ Adaptation

open access: yesAnimals, 2023
The size of adult male giraffes (Giraffa giraffa angolensis) far exceeds the size of the females. At the Namutoni waterholes in Etosha National Park, bulls were seen many times each day screening adult females for their pending sexual receptivity by ...
Lynette A. Hart, Benjamin L. Hart
doaj   +1 more source

FERTILITY TRANSITION FROM TRADITIONAL TO MODERN MODEL IN MOLDOVA: EXPLORATION IN BASE ON THE GENERATION AND GENDER SURVEY

open access: yesEconomy and Sociology, 2022
In Moldova, like in other countries of Eastern Europe, after the 1990s, fertility transition from the traditional model to the modern one is occurring. A stable fertility decline was observed up to 2004, while the total fertility rate settled at 1.7-1.8 ...
Ecaterina Grigoraș, Olga GAGAUZ
doaj   +1 more source

Identification of neurohypophysial hormones and the role of VT in the parturition of pregnant seahorses (Hippocampus erectus)

open access: yesFrontiers in Endocrinology, 2022
Neurohypophysial hormones regulate the reproductive behavior of teleosts; however, their role in the gestation and parturition of ovoviviparous fishes with male pregnancy (syngnathids) remains to be demonstrated.
Huixian Zhang   +9 more
doaj   +1 more source

Factors affecting the achievement of fertility intentions in urban Nigeria: analysis of longitudinal data

open access: yesBMC Public Health, 2017
Background Maternal mortality ratio in Nigeria is among the highest in the world with an estimated 160 women dying every day of complications related to pregnancy and childbirth. In addition to appropriate management of complications related to pregnancy
Stella Babalola   +5 more
doaj   +1 more source

Individual and Environmental Predictors of Age of First Intercourse and Number of Children by Age 27

open access: yesFrontiers in Psychology, 2020
Reproductive behavior characteristics may be influenced by both social and individual factors. Recent studies have revealed that personality traits might be related to reproductive characteristics in adulthood.
Wojciech Ł. Dragan   +4 more
doaj   +1 more source

COMPARATIVE ANALYSIS OF BIRTH PROMOTION MEASURES IN THE REPUBLIC OF ARMENIA AND EUROPEAN COUNTRIES

open access: yesInternational Journal of Innovative Technologies in Economy, 2021
The article is devoted to the study of birth promotion measures in the RA and European countries. Birth rates throughout the world have dropped dramatically in recent decades. The above-mentioned issue is highlighted in European countries.
Manuk Movsisyan   +2 more
doaj   +1 more source

Functions of Mass Media in the Coverage of Reproductive Behavior of Young People

open access: yesГуманитарный вектор, 2020
The article is dedicated to a study of media communication strategies aimed at educating of the readership with regards to reproductive behavior. Nowadays, the journalists focus not only on traditional issues of marriage, parenthood, early sexual ...
Ksenya E. Vinogradova   +1 more
doaj   +1 more source

Differences in Reproductive Behavior between Spawning and Non-Spawning Zebrafish Pairs and the Effects of 17α-Ethinylestradiol (EE2)

open access: yesToxics, 2016
Reproductive success manifested by spawning and fertilization, in most fish, depends partly on an appropriate courtship behavior by both sexes. The zebrafish reproductive behavior can be resolved in some of its constituent elements by a computerized ...
Per G. Henriksen   +2 more
doaj   +1 more source

Egg development and hatching in two Red Sea damselfishes

open access: yesFrontiers in Marine Science, 2023
Damselfishes (family Pomacentridae) are widely distributed reef-associated marine fishes. The family’s diversity, iconic nesting behaviors, and high environmental adaptability contribute to the popularity of damselfishes as aquarium species, tourist ...
Song He, Michael L. Berumen
doaj   +1 more source

At the Crossroad of Decision to Have Children: An Analysis of Individual and Social Childbearing Challenges in the Context of Low Fertility in Isfahan [PDF]

open access: yesجامعه شناسی کاربردی, 2022
Introduction In low fertility settings, couple's decision to have children is usually a planned and complex decision that the couple makes based on consideration of their individual and family life on the one hand and considering the social and economic ...
Farideh Shams Gahfarokhi   +4 more
doaj   +1 more source

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