Reproductive barriers

Limited access to health services during the antenatal period and during childbirth, due to financial barriers, is an obstacle to reducing maternal and child mortality. To improve the use of health services in the three regions of Cameroon, which have the worst reproductive, maternal, neonatal, child and adolescent health indicators, a health voucher project aiming to reduce financial barriers has been progressively implemented since 2015 in these three regions.

10p vishanshan 27-06-2024 1 1   Download

Ebook "Biology and regulation of blood-tissue barriers" was written by many outstanding investigators who have spent decades to study different aspects of blood‑tissue barrier function. They have summarized some of the latest and fascinating development in their fields of research including the blood‑brain barrier, the blood‑retinal barrier, the gut barrier, the blood‑biliary barrier, the blood‑follicle barrier, the blood‑epididymis barrier, the blood‑testis barrier, the tight junction barrier in general as well as barriers in the female reproductive tract.

380p tracanhphuonghoa1007 22-04-2024 7 3   Download

Part 1 book "Dynamics in animal nutrition" includes content: Understanding nutritional immunomodulation - Th1 versus Th2; basis and regulation of gut barrier function and epithelial cell protection - Applications to the weaned pig, effects of oxidative stress and selenium supplementation on piglets and the underlying mechanisms; functional amino acids in swine nutrition and production, glucose metabolism in reproductive sows.

113p oursky07 23-10-2023 9 2   Download

Multiparous women are supposed to be able to end their reproductive cycle to decrease population growth. This study aimed to analyze barriers for multiparous women to use long-term contraceptive methods (LTCM) in the Philippines and Indonesia.

8p viferrari 28-11-2022 14 2   Download

In Nepal, Health Mother’s Groups (HMG) are women’s group-based programmes for improving maternal and child health. However, they remain underutilised with only 27% of reproductive-aged women participating in an HMG meeting in 2016. This study aimed to understand the facilitators and barriers to HMG meeting participation.

11p viferrari 29-10-2022 8 2   Download

It has been recognized that a certain amount of habitat disturbance is a facilitating factor for the occurrence of natural hybridization, yet to date we are unaware of any studies exploring hybridization and reproductive barriers in those plants preferentially occupying disturbed habitats.

15p vijichea2711 28-05-2021 9 1   Download

Achieving the unfinished agenda towards sexual and reproductive health and rights requires overcoming remaining barriers to contraceptive uptake, which can be method-specific. Women’s uptake of the IUD is poor across sub-Saharan Africa.

12p vitokyo2711 31-08-2020 28 2   Download

Interspecific hybridization is a useful tool in ornamental breeding to increase genetic variability and introduce new valuable traits into existing cultivars. The successful formation of interspecific hybrids is frequently limited by the presence of pre- and post-fertilization barriers.

15p viminato2711 22-05-2020 7 0   Download

Fruits and vegetables are often referred to as “protective foods” because they are rich in minerals and vitamins. Fruit production is severely impacted by various biotic and abiotic stresses and during the past, efforts have been made by conventional breeding programs to mitigate these problems. However, classical breeding has had little success in improving fruit plants and is constrained due to long juvenile period, genetic erosion, genetic drag and reproductive barriers that limit the transfer of favourable genes from diverse genetic resources.

12p nguaconbaynhay5 11-05-2020 10 0   Download

Meiotic abnormalities lead to morphological and genetic variations which caused not only to evolution but also intraspecific reproductive barriers. During present study of detailed meiotic course in dicotyledonous plants sampled from Indian cold deserts, various meiotic abnormalities have been detected.

11p viharuno2711 24-04-2020 25 0   Download

In water lily (Nymphaea) hybrid breeding, breeders often encounter non-viable seeds, which make it difficult to transfer desired or targeted genes of different Nymphaea germplasm. We found that pre-fertilization barriers were the main factor in the failure of the hybridization of Nymphaea.

15p viharuno2711 21-04-2020 7 1   Download

Chapter 14 - The origin of species. 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.

93p shiwo_ding2 03-04-2019 21 1   Download

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.

23p nomoney10 04-05-2017 38 2   Download

Chapter 24 introduce to the origin of species. 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.

39p tangtuy02 08-03-2016 31 2   Download

A challenging issue for boards can be finding directors who reflect the diversity of the community in which the organization operates. Boards benefit from having members with a variety of experiences and outlooks. They may encounter problems, however, if individual directors see themselves only as representatives of specific communities or interest groups. Representation that gives rise to the formation of camps or factions on the board can be a barrier to effective goal-setting and decision-making.

74p thamgiacongdong 02-05-2013 59 10   Download

Using a holistic perspective, we spoke to young women about practical needs for food, shelter, childcare, transportation; and their strategic needs for education, equitable wages, equal gender division of labour, and reproductive choice. If systemic barriers to economic and social equality between men and women are going to be overcome, both practical and strategic need to be included in programs with young women. Moreover, a strong safety net and supports such as adequate housing and childcare are required for young women to participate in CED. ...

0p trinhcaidat 22-04-2013 40 1   Download

In September 2006, as a result of advocacy by international and national non-governmental organisations (NGOs), the United Nations (UN) General Assembly finally adopted the target of universal access to reproductive health. This health key issues guide explores issues relating to universal access to sexual and reproductive health (SRH) services using a rights-based approach. The guide examines factors that inhibit access to and use of SRH services, and discusses methods for removing barriers to care and improving access.

24p ut_hai_can 25-12-2012 78 9   Download

This ASTRA network paper examines barriers to accessing reproductive health services and supplies in Central and Eastern Europe (CEE). The paper finds that reproductive health is not prioritised in government policies: they lack a commitment to recognise reproductive health supplies as an important component of public health and human rights and there is no adequate legislation and policy in this area. Condoms are widely available, but their cost is often high, especially for young people.

16p ut_hai_can 25-12-2012 61 11   Download

Research shows that sensational news stories as well as popular romance novels often feature themes related to important topics in evolutionary psychology. In the first of four studies described in this paper we examined the song lyrics from three Billboard charts: Country, Pop, and R&B. A content analysis of the lyrics revealed 18 reproductive themes that read like an outline for a course in evolutionary psychology. Approximately 92% of the 174 songs that made it into the Top Ten in 2009 contained one or more reproductive messages, with an average of 10.49 reproductive...

16p ut_hai_can 25-12-2012 65 4   Download

Another critical barrier to access is discrimination by state laws or fertility clinics. Coverage in five of the states with insurance mandates 12 is only available to married couples, and four of these states 13 mandate use of the husband’s sperm, eliminating the possibility of donor sperm. Some fertility clinics only offer services to married couples as well. The American Society for Reproductive Medicine reports that fertility clinics vary in their willingness to treat single women, single men, lesbian couples, and gay male couples.

10p le_minh_nha 25-12-2012 44 2   Download