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Maternal Impression
The conception of a maternal impression rests on the belief that a powerful mental (or sometimes physical) influence working on the mother's mind may produce an impression, either general or definite, on the child she is carrying. The child might be said to be "marked" as a result. Medicine Maternal impression, according to a long-discredited medical theory, was a phenomenon that explained the existence of birth defects and congenital disorders. The theory stated that an emotional stimulus experienced by a pregnant woman could influence the development of the fetus. For example, it was sometimes supposed that the mother of the Elephant Man was frightened by an elephant during her pregnancy, thus "imprinting" the memory of the elephant onto the gestating fetus. Mental problems, such as schizophrenia and depression, were believed to be a manifestation of similar disordered feelings in the mother. For instance, a pregnant woman who experienced great sadness might imprint depressive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superseded Scientific Theories
This list catalogs well-accepted theories in science and pre-scientific natural philosophy and natural history which have since been superseded by scientific theories. Many discarded explanations were once supported by a scientific consensus, but replaced after more empirical information became available that identified flaws and prompted new theories which better explain the available data. Pre-modern explanations originated before the scientific method, with varying degrees of empirical support. Some theories are discarded in their entirety, such as the replacement of the phlogiston theory by energy and thermodynamics. Some theories known to be incomplete or in some ways incorrect are still used. For example, Newtonian classical mechanics is accurate enough for practical calculations at everyday distances and velocities, and it is still taught in schools. The more complicated relativistic mechanics must be used for long distances and velocities nearing the speed of light, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliny The Elder
Gaius Plinius Secundus (AD 23/2479), called Pliny the Elder (), was a Roman author, naturalist and natural philosopher, and naval and army commander of the early Roman Empire, and a friend of the emperor Vespasian. He wrote the encyclopedic ''Naturalis Historia'' (''Natural History''), which became an editorial model for encyclopedias. He spent most of his spare time studying, writing, and investigating natural and geographic phenomena in the field. His nephew, Pliny the Younger, wrote of him in a letter to the historian Tacitus: Among Pliny's greatest works was the twenty-volume work ''Bella Germaniae'' ("The History of the German Wars"), which is no longer extant. ''Bella Germaniae'', which began where Aufidius Bassus' ''Libri Belli Germanici'' ("The War with the Germans") left off, was used as a source by other prominent Roman historians, including Plutarch, Tacitus and Suetonius. Tacitus—who many scholars agree had never travelled in Germania—used ''Bella Germani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obsolete Biology Theories
Obsolescence is the state of being which occurs when an object, service, or practice is no longer maintained or required even though it may still be in good working order. It usually happens when something that is more efficient or less risky replaces it. The international standard IEC 62402:2019 Obsolescence Management defines obsolescence as the "transition from available to unavailable from the manufacturer in accordance with the original specification". Obsolete also refers to something that is already disused or discarded, or antiquated. Typically, obsolescence is preceded by a gradual decline in popularity. Consequences Driven by rapid technological changes, new components are developed and launched on the market with increasing speed. The result is a dramatic change in production methods of all components and their market availability. A growing industry sector is facing issues where life cycles of products no longer fit together with life cycles of required components ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obsolete Medical Theories
Obsolescence is the state of being which occurs when an object, service, or practice is no longer maintained or required even though it may still be in good working order. It usually happens when something that is more efficient or less risky replaces it. The international standard IEC 62402:2019 Obsolescence Management defines obsolescence as the "transition from available to unavailable from the manufacturer in accordance with the original specification". Obsolete also refers to something that is already disused or discarded, or antiquated. Typically, obsolescence is preceded by a gradual decline in popularity. Consequences Driven by rapid technological changes, new components are developed and launched on the market with increasing speed. The result is a dramatic change in production methods of all components and their market availability. A growing industry sector is facing issues where life cycles of products no longer fit together with life cycles of required components ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lily Weiser-Aall
Lily Weiser-Aall (18 December 1898 – 26 February 1987), born Elisabeth Augusta Jeanette Weiser, was an Austrian philologist and ethnologist who specialized in Germanic studies. Biography Lily Weiser-Aall was born in Vienna, Austria-Hungary on 18 December 1898 to an upper middle class family. Her father was a lawyer and her mother was a singer and pianist. After gaining her abitur, Weiser-Aall studied German and Nordic philology at the University of Vienna under Rudolf Much. She became one of Much's favourite students, and gained her Ph.D. in 1922 under his supervision with a thesis on Yule. Her thesis was published in 1923. After gaining her Ph.D., Weiser-Aall held an internship at a museum in Hamburg, and worked as a teacher at a Viennese middle school for girls. During this time Weisser-All attended scholarly conferences in Sweden and Italy, where she established contacts with folklorists such as and Eugen Fehrle. With Much and Fehrle, Weiser-Aall conducted her post-doctor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sooterkin
A sooterkin is a fabled small creature about the size of a mouse that certain women were believed to have been capable of giving birth to. The origin of this initially jocular fantasy lies in the 18th century, and some eminent physicians of the day considered it factual. It is attributed to a tendency of Dutch women to frequently sit on stoves or use them under their petticoats to keep warm, hence causing the breeding of a small kind of animal that would mature and be born. The English physician John Maubray published a work entitled '' The Female Physician'', in which he proposed that it was possible for women to give birth to sooterkins. Maubray was an advocate for maternal impression, a widely held belief that conception and pregnancy could be influenced by what the pregnant mother dreamt of, or saw. Maubray warned pregnant women that over-familiarity with household pets could make their children resemble those animals. He was involved in the case of Mary Toft, who appeared to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudoscience
Pseudoscience consists of statements, beliefs, or practices that claim to be both scientific and factual but are incompatible with the scientific method. Pseudoscience is often characterized by contradictory, exaggerated or falsifiability, unfalsifiable claims; reliance on confirmation bias rather than rigorous attempts at refutation; lack of openness to Peer review, evaluation by other experts; absence of systematic practices when developing Hypothesis, hypotheses; and continued adherence long after the pseudoscientific hypotheses have been experimentally discredited. The demarcation problem, demarcation between science and pseudoscience has scientific, philosophical, and political implications. Philosophers debate the nature of science and the general criteria for drawing the line between scientific theory, scientific theories and pseudoscientific beliefs, but there is general agreement on examples such as ancient astronauts, climate change denial, dowsing, evolution denial, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mooncalf
A mooncalf (or moon-calf) is a monstrous birth, the abortive fetus of a cow or other farm animal. The term was occasionally applied to an abortive human fetus. The term derives from the once widespread superstition, present in many European folk traditions, that such malformed creatures were the product of the sinister influence of the Moon on fetal development. The earliest recorded use of the term was in 1565, referring to a human false pregnancy. Modern usage The term came to also refer to any monstrous or grotesque thing. Shakespeare, for instance, used the term to describe Caliban, the deformed servant of Prospero, in '' The Tempest''. In H. G. Wells' 1901 novel ''The First Men in the Moon'', large creatures domesticated by the Selenites are referred to as "mooncalves." Mooncalf is used as a derogatory term indicating someone is a dullard, fool or otherwise not particularly bright or sharp. For example, W. C. Fields in ''The Bank Dick'' (1940) advises his prospective son ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mary Toft
Mary Toft (née Denyer; c. 1701–1763), also spelled Tofts, was an English woman from Godalming, Surrey, who in 1726 became the subject of considerable controversy when she tricked doctors into believing that she had given birth to rabbits. In 1726, Toft became pregnant, but following her reported fascination with the sighting of a rabbit, she miscarried. Her claim to have given birth to various animal parts prompted the arrival of John Howard, a local surgeon, who investigated the matter. He delivered several pieces of animal flesh and duly notified other prominent physicians, which brought the case to the attention of Nathaniel St. André, surgeon to the Royal Household of King George I. St. André concluded that Toft's case was genuine but the king also sent surgeon Cyriacus Ahlers, who remained skeptical. By then quite famous, Toft was brought to London where she was studied in detail; under intense scrutiny and producing no more rabbits she confessed to the h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamarckism
Lamarckism, also known as Lamarckian inheritance or neo-Lamarckism, is the notion that an organism can pass on to its offspring physical characteristics that the parent organism acquired through use or disuse during its lifetime. It is also called the inheritance of acquired characteristics or more recently soft inheritance. The idea is named after the French zoologist Jean-Baptiste Lamarck (1744–1829), who incorporated the classical era theory of soft inheritance into his theory of evolution as a supplement to his concept of orthogenesis, a drive towards Evolution of biological complexity, complexity. Introductory textbooks contrast Lamarckism with Charles Darwin's theory of evolution by natural selection. However, Darwin's book ''On the Origin of Species'' gave credence to the idea of heritable effects of use and disuse, as Lamarck had done, and his own concept of pangenesis similarly implied soft inheritance. Many researchers from the 1860s onwards attempted to find evidence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fetal Origins Of Adult Disease
Thrifty phenotype refers to the correlation between low birth weight of neonates and the increased risk of developing metabolic syndromes later in life, including type 2 diabetes and cardiovascular diseases. Although early life undernutrition is thought to be the key driving factor to the hypothesis, other environmental factors have been explored for their role in susceptibility, such as physical inactivity. Genes may also play a role in susceptibility of these diseases, as they may make individuals predisposed to factors that lead to increased disease risk. Historical overview The term Thrifty Phenotype was first coined by Charles Nicholas Hales and David Barker in a study published in 1992. In their study, the authors reviewed the literature up to and addressed five central questions regarding role of different factors in type 2 diabetes on which they based their hypothesis. These questions included the following: # The role of beta cell deficiency in type 2 diabetes. # The e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fetal Origins Hypothesis
The fetal origins hypothesis (differentiated from the developmental origins of health and disease hypothesis, which emphasizes environmental conditions both before and immediately after birth) proposes that the period of gestation has significant impacts on the developmental health and wellbeing outcomes for an individual ranging from infancy to adulthood. The effects of fetal origin are marked by three characteristics: latency, wherein effects may not be apparent until much later in life; persistency, whereby conditions resulting from a fetal effect continue to exist for a given individual; and genetic programming, which describes the 'switching on' of a specific gene due to prenatal environment. Research in the areas of economics, epidemiology, and epigenetics offer support for the hypothesis. Background The fetus was once believed to be a "perfect parasite", immune to harmful environmental toxins passed from the mother via the placenta. Stemming from this belief, pregnant women ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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