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Fertility Awareness
Fertility awareness (FA) refers to a set of practices used to determine the fertile and infertile phases of a woman's menstrual cycle. Fertility awareness methods may be used to avoid pregnancy, to achieve pregnancy, or as a way to monitor gynecological health. Methods of identifying infertile days have been known since antiquity, but scientific knowledge gained during the past century has increased the number, variety, and especially accuracy of methods. Systems of fertility awareness rely on observation of changes in one or more of the primary fertility signs ( basal body temperature, cervical mucus, and cervical position), tracking menstrual cycle length and identifying the fertile window based on this information, or both. Other signs may also be observed: these include breast tenderness and mittelschmerz (ovulation pains), urine analysis strips known as ovulation predictor kits (OPKs), and microscopic examination of saliva or cervical fluid. Also available are computerized ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Fertilization
Human fertilization is the union of an egg and sperm, occurring primarily in the ampulla of the fallopian tube. The result of this union leads to the production of a fertilized egg called a zygote, initiating embryonic development. Scientists discovered the dynamics of human fertilization in the 19th century. The process of fertilization involves a sperm fusing with an ovum. The most common sequence begins with ejaculation during copulation, follows with ovulation, and finishes with fertilization. Various exceptions to this sequence are possible, including artificial insemination, ''in vitro'' fertilization, external ejaculation without copulation, or copulation shortly after ovulation. Upon encountering the secondary oocyte, the acrosome of the sperm produces enzymes which allow it to burrow through the outer shell called the zona pellucida of the egg. The sperm plasma then fuses with the egg's plasma membrane and their nuclei fuse, triggering the sperm head to disconnect f ... [...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] |
Georgetown University
Georgetown University is a private university, private Jesuit research university in Washington, D.C., United States. Founded by Bishop John Carroll (archbishop of Baltimore), John Carroll in 1789, it is the oldest Catholic higher education, Catholic institution of higher education in the United States, the oldest university in Washington, D.C., and the nation's first University charter#Federal, federally chartered university. The university has eleven Undergraduate education, undergraduate and Postgraduate education, graduate schools. Its main campus, located in the Georgetown (Washington, D.C.), Georgetown historic neighborhood, is on a hill above the Potomac River and identifiable by Healy Hall, a National Historic Landmark. It is Carnegie Classification of Institutions of Higher Education, classified among List_of_research_universities_in_the_United_States#Universities_classified_as_"R1:_Doctoral_Universities_–_Very_high_research_activity", "R1: Doctoral Universities – V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Billings (Australian Physician)
John Billings , Order of Saint Gregory the Great, KC*SG (5 March 1918 – 1 April 2007) and his wife, Evelyn Livingston Billings , Order of Saint Gregory the Great, DCSG (née Thomas; 8 February 191816 February 2013), were Australian physicians who pioneered the natural method of family planning known initially as the Ovulation Method, then the Ovulation Method Billings, specified by the WHO in 1978 and finally as the Billings Ovulation Method. Biography John Billings was born in Melbourne and was educated at Xavier College, and at the University of Melbourne where he received his Doctor of Medicine degree. In 1953, he began work on a method of natural family planning, involving observation of several indicators of fertility and infertility, gradually focusing on the changes to cervical mucus patterns of sensation. His wife, Evelyn, became involved from 1963. The couple founded the World Organisation of the Ovulation Method Billings (WOOMB) as the body responsible for tea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pope Pius XII
Pope Pius XII (; born Eugenio Maria Giuseppe Giovanni Pacelli; 2 March 18769 October 1958) was the head of the Catholic Church and sovereign of the Vatican City State from 2 March 1939 until his death on 9 October 1958. He is the most recent pope to take the Papal name, pontifical name "Pius". The papacy of Pius XII was long, even by modern standards; it lasted almost 20 years, and spanned a consequential fifth of the 20th century. Pius was a diplomat pope during the destruction wrought by the Second World War, Aftermath of World War II, the recovery and rebuilding which followed, the beginning of the Cold War, and the early building of a new International order, international geopolitical order, which aimed to protect human rights and maintain global peace through the establishment of international rules and institutions (such as the United Nations). Born, raised, educated, ordained, and resident for most of his life in Rome, his work in the Roman Curia—as a priest, then Bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calendar-based Methods
Calendar-based methods are various methods of estimating a woman's likelihood of fertility, based on a record of the length of previous menstrual cycles. Various methods are known as the Knaus–Ogino method and the rhythm method. The standard days method is also considered a calendar-based method, because when using it, a woman tracks the days of her menstrual cycle without observing her physical fertility signs. The standard days method is based on a fixed formula taking into consideration the timing of ovulation, the functional life of the sperm and the ovum, and the resulting likelihood of pregnancy on particular days of the menstrual cycle. These methods may be used to achieve pregnancy by timing unprotected intercourse for days identified as fertile, or to birth control, avoid pregnancy by avoiding unprotected intercourse during fertile days. The first formalized calendar-based method was developed in 1930 by John Smulders, a Catholic Church, Catholic physician from the Neth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyusaku Ogino
was a Japanese medical doctor specializing in obstetrics and gynecology. His natural father's family name was Nakamura, but Kyusaku was adopted by the Ogino family in 1901. Ogino studied infertility and developed a method to estimate the fertile period of the menstrual cycle based on the length of a woman's past cycles. This knowledge could be used by couples seeking pregnancy to time intercourse so as to maximize the chances of conception. In 1930, John Smulders, Roman Catholic physician from the Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ..., used this discovery to create a method for ''avoiding'' pregnancy. Smulders published his work with the Dutch Roman Catholic medical association, and this was the official Rhythm Method promoted over the next several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodoor Hendrik Van De Velde
Theodoor Hendrik van de Velde (12 February 1873, Leeuwarden – 27 April 1937 near Locarno in a plane crash) was a Dutch physician and gynæcologist who served as director at the Gynæcological Institute in Haarlem. Biography His 1926 book ''Het volkomen huwelijk'' (''The Perfect Marriage'') made him an instant international celebrity. The book advocated knowledge and sensuality in erotic life. In Germany, ''Die vollkommene Ehe'' reached its 42nd printing in 1932, in spite of the fact that it was placed on the list of forbidden books, Index Librorum Prohibitorum, by the Roman Catholic Church. German-American sex therapist and Holocaust survivor Dr. Ruth Westheimer, known popularly as Dr. Ruth, has said that it was the first book on the subject of sex that she ever had an opportunity to read a few pages of, when she was a ten-year-old child in Frankfurt, Germany. In Protestant and social democratic Sweden, ''Det fulländade äktenskapet'' was widely known although regarded a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Childfree
Voluntary childlessness or childfreeness is the active choice not to have children and not to adopt children. Use of the word ''childfree'' was first recorded in 1901 and entered common usage among feminists during the 1970s. The suffix -''free'' refers to the freedom and personal choice of those to pick this lifestyle. The meaning of the term ''childfree'' extends to encompass the children of others (in addition to one's own children), and this distinguishes it further from the more usual term ''childless'', which is traditionally used to express the idea of having no children, whether by choice or by circumstance. In the research literature, the term ''child-free'' or ''childfree'' has also been used to refer to parents currently not living with their children, for example because they have already grown up and moved out. In common usage, ''childfree'' might be used in the context of venues or activities wherein (young) children are excluded even if the people involved may be pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manichaeans
Manichaeism (; in ; ) is an endangered former major world religion currently only practiced in China around Cao'an,R. van den Broek, Wouter J. Hanegraaff ''Gnosis and Hermeticism from Antiquity to Modern Times''. SUNY Press, 1998 p. 37 founded in the 3rd century CE by the Parthian prophet Mani (216–274 CE), in the Sasanian Empire. Manichaeism teaches an elaborate dualistic cosmology describing the struggle between a good, spiritual world of light, and an evil, material world of darkness. Through an ongoing process that takes place in human history, light is gradually removed from the world of matter and returned to the world of light, whence it came. Mani's teaching was intended to "combine", succeed, and surpass the teachings of Platonism, Christianity, Zoroastrianism, Buddhism, Marcionism, Hellenistic and Rabbinic Judaism, Gnostic movements, Ancient Greek religion, Babylonian and other Mesopotamian religions, and mystery cults.Arendzen, John (1 October 1910).Manich� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Augustine Of Hippo
Augustine of Hippo ( , ; ; 13 November 354 – 28 August 430) was a theologian and philosopher of Berber origin and the bishop of Hippo Regius in Numidia, Roman North Africa. His writings deeply influenced the development of Western philosophy and Western Christianity, and he is viewed as one of the most important Church Fathers of the Latin Church in the Patristic Period. His many important works include '' The City of God'', '' On Christian Doctrine'', and '' Confessions''. According to his contemporary, Jerome of Stridon, Augustine "established anew the ancient Faith". In his youth he was drawn to the Manichaean faith, and later to the Hellenistic philosophy of Neoplatonism. After his conversion to Christianity and baptism in 386, Augustine developed his own approach to philosophy and theology, accommodating a variety of methods and perspectives. Believing the grace of Christ was indispensable to human freedom, he helped formulate the doctrine of original sin and m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family Planning
Family planning is the consideration of the number of children a person wishes to have, including the choice to have no children, and the age at which they wish to have them. Things that may play a role on family planning decisions include marital situation, career or work considerations, or financial situations. If sexually active, family planning may involve the use of Birth control, contraception (birth control) and other techniques to control the timing of Human reproduction, reproduction. Other aspects of family planning aside from contraception include sex education, prevention and management of sexually transmitted infections, pre-conception counseling and pregnancy#Management, management, and infertility management.World Health Organization. (n.d.)Sexual and Reproductive Health. Retrieved on 30 October 2019. Family planning, as defined by the United Nations and the World Health Organization, encompasses services leading up to conception. Abortion is another form of family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
