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Natural Fertility
Natural fertility is the fertility that exists without birth control or other medical interventions. The control is the number of children birthed to the parents and is modified as the number of children reaches the maximum. Natural fertility tends to decrease as a society modernizes. Women in a pre-modernized society typically have given birth to a large number of children by the time they are 50 years old, while women in post-modernized society only bear a small number by the same age. However, during modernization natural fertility rises, before family planning is practiced. Historical populations have traditionally honored the idea of natural fertility by displaying fertility symbols. Birth control Natural fertility is a concept developed by the French historical demographer Louis Henry to refer to the level of fertility that would prevail in a population that makes no conscious effort to limit, regulate, or control fertility, so that fertility depends only on physiological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French People
French people () are a nation primarily located in Western Europe that share a common Culture of France, French culture, History of France, history, and French language, language, identified with the country of France. The French people, especially the native speakers of langues d'oïl from northern and central France, are primarily descended from Roman people, Romans (or Gallo-Romans, western European Celts, Celtic and Italic peoples), Gauls (including the Belgae), as well as Germanic peoples such as the Franks, the Visigoths, the Suebi and the Burgundians who settled in Gaul from east of the Rhine after the fall of the Roman Empire, as well as various later waves of lower-level irregular migration that have continued to the present day. The Norsemen also settled in Normandy in the 10th century and contributed significantly to the ancestry of the Normans. Furthermore, regional ethnic minorities also exist within France that have distinct lineages, languages and cultures such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marriage
Marriage, also called matrimony or wedlock, is a culturally and often legally recognised union between people called spouses. It establishes rights and obligations between them, as well as between them and their children (if any), and between them and their Affinity (law), in-laws. It is nearly a cultural universal, but the definition of marriage varies between cultures and religions, and over time. Typically, it is an institution in which interpersonal relationships, usually sexual, are acknowledged or sanctioned. In some cultures, marriage is recommended or considered to be Premarital sex, compulsory before pursuing sexual activity. A marriage ceremony is called a wedding, while a private marriage is sometimes called an elopement. Around the world, there has been a general trend towards ensuring Women's rights, equal rights for women and ending discrimination and harassment against couples who are Interethnic marriage, interethnic, Interracial marriage, interracial, In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laestadian
Laestadianism (; ; ; ), also known as Laestadian Lutheranism and Apostolic Lutheranism, is a pietistic Lutheran revival movement started in Sápmi in the middle of the 19th century. Named after Swedish Lutheran state church administrator and temperance movement leader Lars Levi Laestadius, it is the biggest pietistic revivalist movement in the Nordic countries. It has members mainly in Finland, Northern America, Norway, Russia, and Sweden. There are also smaller congregations in Africa, South America, and Central Europe. In addition Laestadian Lutherans have missionaries in 23 countries. The number of Laestadians worldwide is estimated to be between 144,000 and 219,000. Organization in Finland and North America Most Laestadians in Finland are part of the national Lutheran Church of Finland (cf. '' Communion of Nordic Lutheran Dioceses''); but in America, where there is no official Lutheran church, they founded their own denomination, which split into three sub-groups in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hutterite
Hutterites (; ), also called Hutterian Brethren (German: ), are a communal ethnoreligious branch of Anabaptists, who, like the Amish and Mennonites, trace their roots to the Radical Reformation of the early 16th century and have formed intentional communities. The founder of the Hutterites, Jakob Hutter, "established the Hutterite colonies on the basis of the Schleitheim Confession, a classic Anabaptist statement of faith" of 1527. He formed the first communes in 1528 in Tyrole (present-day Italy). Since the death of Hutter in 1536, the beliefs of the Hutterites, especially those espousing a community of goods and nonresistance, have resulted in hundreds of years of diaspora in many countries. The Hutterites embarked on a series of migrations through central and eastern Europe. Nearly extinct by the 18th century, they migrated to Russia in 1770 and about a hundred years later to North America. Over the course of 140 years, their population living in communities of goods re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Namibian Bushmen Girls
This is a demography of the population of Namibia including population density, ethnicity, education level, health of the populace, economic status, religious affiliations and other aspects of the population. Population Census results As required by the Namibian ''Statistics Act'' #66 of 1976, and in accordance with United Nations recommendations, a census is conducted every ten years. After Namibian independence the first Population and Housing Census was carried out in 1991, further rounds followed in 2001 and 2011. The data collection method is to count every person resident in Namibia wherever they happen to be. This is called the ''de facto'' method. For enumeration purposes the country is demarcated into 4,042 ''enumeration areas''. These areas overlap with constituency boundaries in order to get reliable data for election purposes as well. The 2011 Population and Housing Census counted 2,113,077 inhabitants of Namibia. Between 2001 and 2011 the annual population gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Asia
South Asia is the southern Subregion#Asia, subregion of Asia that is defined in both geographical and Ethnicity, ethnic-Culture, cultural terms. South Asia, with a population of 2.04 billion, contains a quarter (25%) of the world's population. As commonly conceptualised, the modern State (polity), states of South Asia include Bangladesh, Bhutan, India, the Maldives, Nepal, Pakistan, and Sri Lanka, with Afghanistan also often included, which may otherwise be classified as part of Central Asia. South Asia borders East Asia to the northeast, Central Asia to the northwest, West Asia to the west and Southeast Asia to the east. Apart from Southeast Asia, Littoral South Asia, Maritime South Asia is the only subregion of Asia that lies partly within the Southern Hemisphere. The British Indian Ocean Territory and two out of Atolls of Maldives, 26 atolls of the Maldives in South Asia lie entirely within the Southern Hemisphere. Topographically, it is dominated by the Indian subcontinent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Menopause
Menopause, also known as the climacteric, is the time when Menstruation, menstrual periods permanently stop, marking the end of the Human reproduction, reproductive stage for the female human. It typically occurs between the ages of 45 and 55, although the exact timing can vary. Menopause is usually a natural change related to a decrease in circulating blood estrogen levels. It can occur earlier in those who smoke tobacco. Other causes include surgery that removes both ovaries, some types of chemotherapy, or anything that leads to a decrease in hormone levels. At the physiological level, menopause happens because of a decrease in the ovaries' production of the hormones estrogen and progesterone. While typically not needed, measuring hormone levels in the blood or urine can confirm a diagnosis. Menopause is the opposite of menarche, the time when periods start. In the years before menopause, a woman's periods typically become irregular, which means that periods may be longer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lactational Amenorrhea
Lactational amenorrhea, also called postpartum infertility, is the temporary postnatal infertility that occurs when a woman is amenorrheic (not menstruating) and fully breastfeeding. Physiology Hormonal pathways and neuroendocrine control Breastfeeding delays the resumption of normal ovarian cycles by disrupting the pattern of pulsatile release of gonadotropin-releasing hormone (GnRH) from the hypothalamus and hence luteinizing hormone (LH) from the pituitary. The plasma concentrations of follicle-stimulating hormone (FSH) during lactation are sufficient to induce follicle growth, but the inadequate pulsatile LH signal results in a reduced estradiol production by these follicles. When follicle growth and estradiol secretion does increase to normal, lactation prevents the generation of a normal preovulatory LH surge and follicles either fail to rupture, or become atretic or cystic. Only when lactation declines sufficiently to allow generation of a normal preovulatory LH surg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uterus
The uterus (from Latin ''uterus'', : uteri or uteruses) or womb () is the hollow organ, organ in the reproductive system of most female mammals, including humans, that accommodates the embryonic development, embryonic and prenatal development, fetal development of one or more Fertilized egg, fertilized eggs until birth. The uterus is a hormone-responsive sex organ that contains uterine gland, glands in its endometrium, lining that secrete uterine milk for embryonic nourishment. (The term ''uterus'' is also applied to analogous structures in some non-mammalian animals.) In humans, the lower end of the uterus is a narrow part known as the Uterine isthmus, isthmus that connects to the cervix, the anterior gateway leading to the vagina. The upper end, the body of the uterus, is connected to the fallopian tubes at the uterine horns; the rounded part, the fundus, is above the openings to the fallopian tubes. The connection of the uterine cavity with a fallopian tube is called the utero ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gestational Age (obstetrics)
In obstetrics, gestational age is a measure of the age of a pregnancy taken from the beginning of the woman's last menstrual period (LMP), or the corresponding age of the gestation as estimated by a more accurate method, if available. Such methods include adding 14 days to a known duration since fertilization (as is possible in in vitro fertilization), or by obstetric ultrasonography. The popularity of using this measure of pregnancy is largely due to convenience: menstruation is usually noticed, while there is generally no convenient way to discern when fertilization or implantation occurred. Gestational age is contrasted with fertilization age, which takes the date of fertilization as the start date of gestation. There are different approaches to defining the start of a pregnancy. This definition is unusual in that it describes women as becoming "pregnant" about two weeks before they even had sex. The definition of pregnancy and the calculation of gestational age are also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fetus
A fetus or foetus (; : fetuses, foetuses, rarely feti or foeti) is the unborn offspring of a viviparous animal that develops from an embryo. Following the embryonic development, embryonic stage, the fetal stage of development takes place. Prenatal development is a continuum, with no clear defining feature distinguishing an embryo from a fetus. However, in general a fetus is characterized by the presence of all the major body organs, though they will not yet be fully developed and functional, and some may not yet be situated in their final Anatomy, anatomical location. In human prenatal development, fetal development begins from the ninth week after Human fertilization, fertilization (which is the eleventh week of Gestational age (obstetrics), gestational age) and continues until the childbirth, birth of a newborn. Etymology The word ''wikt:fetus#English, fetus'' (plural ''wikt:fetuses#English, fetuses'' or rarely, the solecism ''wikt:feti#English, feti''''Oxford English Dict ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zygote
A zygote (; , ) is a eukaryote, eukaryotic cell (biology), cell formed by a fertilization event between two gametes. The zygote's genome is a combination of the DNA in each gamete, and contains all of the genetic information of a new individual organism. The sexual fusion of haploid cells is called karyogamy, the result of which is the formation of a Ploidy#Haploid and monoploid, diploid cell called the zygote or zygospore. History German zoologists Oscar Hertwig, Oscar and Richard Hertwig made some of the first discoveries on animal zygote formation in the late 19th century. In multicellular organisms The zygote is the earliest developmental stage. In humans and most other Anisogamy, anisogamous organisms, a zygote is formed when an egg cell and sperm, sperm cell come together to create a new unique organism. The formation of a cell potency, totipotent zygote with the potential to produce a whole organism depends on epigenetics, epigenetic reprogramming. DNA demethyla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
