Reproductive biology

Xem 1-20 trên 88 kết quả Reproductive biology
  • Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú y đề tài: Reproductive biology of the pampas deer (Ozotoceros bezoarticus): a review...

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  • After the first edition published in 2007 that became a best seller, the continuous scientific developments in the field have prompted us to produce the second edition of this book. As it happens in life and science, some of the novel and promising data presented in the first edition have been confirmed, some not, and new breakthrough achievements have been accomplished. Stem Cells in Reproductive Medicine, Basic Science and Therapeutic Potential, second edition, updates the revolutionary advances in stem cell science that may potentially impact on human reproductive medicine.

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  • From 1999–2003, FRONTIERS implemented a Global Agenda program of operations research (OR) projects to address the reproductive health (RH) needs of adolescents in four countries— Bangladesh, Kenya, Mexico, and Senegal. The project was implemented in urban areas of Saint- Louis and Louga, in northwestern Senegal, and was called Improving the Reproductive Health of Youth in Senegal.

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  • Conserving biodiversity is a daunting and complex task. Perhaps no species presents a greater challenge than the giant panda – one of the most recognized and threatened animals on the planet. Its difficult-to-traverse, mountainous habitat in China makes quantifying population numbers in the wild exceedingly difficult. Despite a recent survey suggesting that the wild population may be growing, there is no disagreement that the primary threat is severely fragmented habitat.

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  • As individual participants in reproductive health, men face obstacles related to traditional attitudes and practices and to a lack of information and services. Overcoming social and cultural obstacles requires more educational efforts, particularly directed to youth and their parents. Research to support these efforts should identify the specific traditional attitudes that need to be addressed.

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  • Several sexuality education programs have been evaluated, and many include a combination of abstinence messages for sexually inexperienced teens and messages about contraceptive use for sexually experienced teens. Slightly more than half of these programs show some positive impacts on reproductive health outcomes for at least some populations (Aarons et al., 2000; Eisen, Zellman & McAlister, 1990; Kirby, 2001; Thomas et al., 1992).

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  • Everyone loves the news stories about the taxi driverwho delivers a baby for the woman who could not get to the hospital on time. At some point each of us asks ourselves with awe for the first time, “Where did I come from?” It has been said of the body that it is “fearfully and wonderfully made.” How true this is of the reproductive systems on which the survival of our species depends. In this chapter, you will study the systems of the human body responsible for our being here: the male and the female reproduc- tive systems....

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  • (BQ) Part 2 book "Biological psychology" has contents: Mood disorders and schizophrenia, cognitive functions, the biology of learning and memory, emotional behaviors, reproductive behaviors, internal regulation, wakefulness and sleep.

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  • The most commonly used measures of current fertility are the total fertility rate (TFR) and its component age-specific fertility rates (ASFRs). The TFR is an estimate of the average number of births a woman would have at the end of her reproductive years if she bears children at the prevailing age-specific fertility rates throughout her childbearing years (age 15-49). The ASFRs are defined in terms of the number of live births among women in a particular age group divided by the number of woman-years in that age group during the specific period. Figure 4.

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  • Recent studies have shown that differences in life history may lead to consistent inter-individual variation in behavioural traits, so-called behavioural syndromes, animal personalities or temperaments. Consis- tencies of behaviours and behavioural syndromes have mainly been studied in non-cooperative species. Insights on the evolution of coopera- tion could be gained from studying individual differences in life histories and behavioural traits.

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  • Several clinic-based programs have been evaluated with experimental designs and three (out of five) of them showed some positive impacts on reproductive health outcomes (Danielson et al., 1990; DeLameter et al., 2000; Orr et al., 1996). Those programs that showed positive impacts included one-on-one counseling and delivered a clear message about appropriate reproductive health behaviors (Kirby, 2001).

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  • Tham khảo sách 'mental health aspects of women’s reproductive health: a global review of the literature', y tế - sức khoẻ, y học thường thức phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Chapter 27 - The reproductive system (part a), After completing this unit, you should be able to describe the structure and function of the testes, and explain the importance of their location in the scrotum; describe the phases of the male sexual response.

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  • Goal It is to provide scientific arguments about the biological characteristics, and reproductive and rearing techniques of Channa lucius. The success of the project will contribute greatly to the development process of Channa lucius hatchery to supply artificial fish for aquaculture systems and renewable fish resources in the wild in the Mekong Delta as well as in the whole country.

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  • Chapter 16, 17 provides knowledge of reproductive system and sexually transmitted diseases. This chapter includes contents: Male reproductive system, female reproductive system, female hormone levels, control of reproduction, homeostasis, viral infectious diseases, bacterial infectious diseases, other infectious diseases.

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  • Chapter 22A - Darwin and natural selection. After studying this chapter, you will know: How Lamarck’s view of the mechanism of evolution differed from Darwin’s; the role of adaptations, variation, time, reproductive success, and heritability in evolution.

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  • This chapter define and discuss the limitations of the four species concepts, describe and provide examples of prezygotic and postzygotic reproductive barriers, distinguish between and provide examples of allopatric and sympatric speciation, explain how polyploidy can cause reproductive isolation, define the term hybrid zone and describe three outcomes for hybrid zones over time.

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  • Chapter 38 and 39 provides knowledge of angiosperm reproduction - Plant responses to internal and external signals. In this chapter, the following content will be discussed: Types of fruit, plant peproduction, experiments with light and the coleoptile, ethylene gas: fruit ripening, plant movement, plant responses to light, plant responses to stress.

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  • After studying this chapter you will be able to: Distinguish between asexual and sexual reproduction; explain how hermaphroditism may be advantageous to animals that have difficulty encountering a member of the opposite sex; describe various ways in which animals may protect developing embryos; using diagrams, identify and state the function of each component of the male and female reproductive systems.

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  • In this chapter, students will be able to understand: How behaviors are the result of natural selection, how innate and learned behaviors increase survival and reproductive fitness, how organisms use communication to increase fitness, the role of altruism and inclusive fitness in kin selection.

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