Spontaneous
Spontaneous may refer to: * Spontaneous abortion * Spontaneous bacterial peritonitis * Spontaneous combustion * Spontaneous declaration * Spontaneous emission * Spontaneous fission * Spontaneous generation * Spontaneous human combustion * Spontaneous Music Ensemble * Spontaneous order * Spontaneous process * Spontaneous remission * Spontaneous symmetry breaking * ''Spontaneous'' (album) by William Parker & the Little Huey Creative Music Orchestra * ''Spontaneous'' (film), an American sci-fi fantasy film See also * Revolutionary spontaneity Revolutionary spontaneity, also known as spontaneism, is a revolutionary socialist tendency that believes the social revolution can and should occur spontaneously from below by the working class itself, without the aid or guidance of a vanguar ...

Spontaneous Human Combustion
Spontaneous human combustion (SHC) is the pseudoscientific concept of the combustion of a living (or recently deceased) human body without an apparent external source of ignition. In addition to reported cases, descriptions of the alleged phenomenon appear in literature, and both types have been observed to share common characteristics in terms of circumstances and the remains of the victim. Scientific investigations have attempted to analyze reported instances of SHC and have resulted in hypotheses regarding potential causes and mechanisms, including victim behavior and habits, alcohol consumption and proximity to potential sources of ignition, as well as the behavior of fires that consume melted fats. Natural explanations, as well as unverified natural phenomena, have been proposed to explain reports of SHC. Current scientific consensus is that purported cases of SHC involve overlooked external sources of ignition. Overview "Spontaneous human combustion" refers to the dea ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Spontaneous (film)
''Spontaneous'' is a 2020 American coming-of-age romantic black comedy horror film, written and directed by Brian Duffield, in his directorial debut. It stars Katherine Langford, Charlie Plummer, Hayley Law, Piper Perabo, Rob Huebel and Yvonne Orji and is based on the 2016 novel of the same name by Aaron Starmer. It was released in a limited release on October 2, 2020, followed by video on demand on October 6, 2020, by Paramount Pictures. It received positive reviews from critics. Plot During a senior calculus class at Covington High, senior student Katelyn Ogden inexplicably explodes, spraying the surrounding students and classroom with blood. The police take the class into custody during an investigation, but aside from ruling out an attack, are unable to determine the cause of the explosion. During custody, senior student Mara Carlyle suggests to the class that it could happen again, a sentiment taken seriously by her peers. Afterwards, an unknown person texts her, claiming ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Spontaneous Generation
Spontaneous generation is a superseded scientific theory that held that living creatures could arise from nonliving matter and that such processes were commonplace and regular. It was hypothesized that certain forms, such as fleas, could arise from inanimate matter such as dust, or that maggots could arise from dead flesh. The doctrine of spontaneous generation was coherently synthesized by Aristotle, who compiled and expanded the work of earlier natural philosophers and the various ancient explanations for the appearance of organisms. Spontaneous generation was taken as scientific fact for two millennia. Though challenged in the 17th and 18th centuries by the experiments of Francesco Redi and Lazzaro Spallanzani, it was not discredited until the work of the French chemist Louis Pasteur and the Irish physicist John Tyndall in the mid-19th century. Rejection of spontaneous generation is no longer controversial among biologists. By the middle of the 19th century, experiments by Pa ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Spontaneous Music Ensemble
Spontaneous may refer to: * Spontaneous abortion * Spontaneous bacterial peritonitis * Spontaneous combustion * Spontaneous declaration * Spontaneous emission * Spontaneous fission * Spontaneous generation * Spontaneous human combustion * Spontaneous Music Ensemble * Spontaneous order * Spontaneous process * Spontaneous remission * Spontaneous symmetry breaking * ''Spontaneous'' (album) by William Parker & the Little Huey Creative Music Orchestra * ''Spontaneous'' (film), an American sci-fi fantasy film See also * Revolutionary spontaneity Revolutionary spontaneity, also known as spontaneism, is a revolutionary socialist tendency that believes the social revolution can and should occur spontaneously from below by the working class itself, without the aid or guidance of a vanguar ...

Spontaneous Bacterial Peritonitis
Spontaneous bacterial peritonitis (SBP) is the development of a bacterial infection in the peritoneum, despite the absence of an obvious source for the infection. It is specifically an infection of the ascitic fluid – an increased volume of peritoneal fluid. Ascites is most commonly a complication of cirrhosis of the liver. It can also occur in patients with nephrotic syndrome. SBP has a high mortality rate. The diagnosis of SBP requires paracentesis, a sampling of the peritoneal fluid taken from the peritoneal cavity. If the fluid contains large numbers of white blood cells known as neutrophils (>250 cells/µL), infection is confirmed and antibiotics will be given, without waiting for culture results. In addition to antibiotics, infusions of albumin are usually administered. Other life-threatening complications such as kidney malfunction and increased liver insufficiency can be triggered by spontaneous bacterial peritonitis. 30% of SBP patients develop kidney malfunction, ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Spontaneous Symmetry Breaking
Spontaneous symmetry breaking is a spontaneous process of symmetry breaking, by which a physical system in a symmetric state spontaneously ends up in an asymmetric state. In particular, it can describe systems where the equations of motion or the Lagrangian obey symmetries, but the lowest-energy vacuum solutions do not exhibit that same symmetry. When the system goes to one of those vacuum solutions, the symmetry is broken for perturbations around that vacuum even though the entire Lagrangian retains that symmetry. Overview By definition, spontaneous symmetry breaking requires the existence of physical laws (e.g. quantum mechanics) which are invariant under a symmetry transformation (such as translation or rotation), so that any pair of outcomes differing only by that transformation have the same probability distribution. For example if measurements of an observable at any two different positions have the same probability distribution, the observable has translational symmetry. ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Spontaneous Combustion
Spontaneous combustion or spontaneous ignition is a type of combustion which occurs by self-heating (increase in temperature due to exothermic internal reactions), followed by thermal runaway (self heating which rapidly accelerates to high temperatures) and finally, autoignition. Cause and ignition Spontaneous combustion can occur when a substance with a relatively low ignition temperature (hay, straw, peat, etc.) begins to release heat. This may occur in several ways, either by oxidation in the presence of moisture and air, or bacterial fermentation, which generates heat. The heat is unable to escape (hay, straw, peat, etc. are good thermal insulators), and the temperature of the material rises. The temperature of the material rises above its ignition point (even though much of the bacteria are destroyed by ignition temperatures). Combustion begins if sufficient oxidizer, such as oxygen, and fuel are present to maintain the reaction into thermal runaway. Affected materials ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Spontaneous Emission
Spontaneous emission is the process in which a quantum mechanical system (such as a molecule, an atom or a subatomic particle) transits from an excited energy state to a lower energy state (e.g., its ground state) and emits a quantized amount of energy in the form of a photon. Spontaneous emission is ultimately responsible for most of the light we see all around us; it is so ubiquitous that there are many names given to what is essentially the same process. If atoms (or molecules) are excited by some means other than heating, the spontaneous emission is called luminescence. For example, fireflies are luminescent. And there are different forms of luminescence depending on how excited atoms are produced (electroluminescence, chemiluminescence etc.). If the excitation is affected by the absorption of radiation the spontaneous emission is called fluorescence. Sometimes molecules have a metastable level and continue to fluoresce long after the exciting radiation is turned off; this is ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Spontaneous Fission
Spontaneous fission (SF) is a form of radioactive decay that is found only in very heavy chemical elements. The nuclear binding energy of the elements reaches its maximum at an atomic mass number of about 56 (e.g., iron-56); spontaneous breakdown into smaller nuclei and a few isolated nuclear particles becomes possible at greater atomic mass numbers. History By 1908, physicists understood that alpha decay involved ejection of helium nuclei from a decaying atom. Like cluster decay, alpha decay is not typically categorized as a process of fission. The first nuclear fission process discovered was fission induced by neutrons. Because cosmic rays produce some neutrons, it was difficult to distinguish between induced and spontaneous events. Cosmic rays can be reliably shielded by a thick layer of rock or water. Spontaneous fission was identified in 1940 by Soviet physicists Georgy Flyorov and Konstantin Petrzhak by their observations of uranium in the Moscow Metro Dinamo station ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Spontaneous Order
Spontaneous order, also named self-organization in the hard sciences, is the spontaneous emergence of order out of seeming chaos. The term "self-organization" is more often used for physical changes and biological processes, while "spontaneous order" is typically used to describe the emergence of various kinds of social orders in human social networks from the behavior of a combination of self-interested individuals who are not intentionally trying to create order through planning. Proposed examples of systems which evolved through spontaneous order or self-organization include the evolution of life on Earth, language, crystal structure, the Internet, Wikipedia, and a free market economy. Spontaneous orders are to be distinguished from organizations as being scale-free networks, while organizations are hierarchical networks. Further, organizations can be (and often are) a part of spontaneous social orders, but the reverse is not true. While organizations are created and control ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Spontaneous Remission
Spontaneous remission, also called spontaneous healing or spontaneous regression, is an unexpected improvement or cure from a disease that usually progresses. These terms are commonly used for unexpected transient or final improvements in cancer. Spontaneous remissions concern cancers of the haematopoietic system (blood cancer, e.g. leukemia), while spontaneous regressions concern palpable tumors; however, both terms are often used interchangeably. Definition The spontaneous regression and remission from cancer was defined by Everson and Cole in their 1966 book as "the partial or complete disappearance of a malignant tumour in the absence of all treatment, or in the presence of therapy which is considered inadequate to exert significant influence on neoplastic disease."Everson T., Cole W. (1968) ''Spontaneous Regression of Cancer'' Philadelphia, JB Saunder & Co (Book) Frequency of spontaneous regression in cancer It has long been assumed that spontaneous regressions, let alone cur ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Spontaneous (album)
''Spontaneous'' is a live album by bassist and composer William Parker's Little Huey Creative Music Orchestra, which was recorded at the Vision Festival in New York in 2002 and released on the Italian Splasc(H) label. Reception AllMusic awarded the album 4 stars stating "Those who enjoy big-band abstractions immersed in wild, loud, and abrasive surroundings1960s styleshould appreciate the freestyle energy emanating from the orchestra... the uninitiated will likely find this all overwhelmingly imposing, but the rewards are numerous for the disciplined listener who takes the time to listen closely".Loewy, S.Allmusic listing accessed June 4, 2014 Jazz Review noted "Parker leads his band-mates through torrid swing vamps and variable pulses, yet the music is a study in perpetual motion guided by the soloists’ blaring lines. A high-octane effort for sure, although there’s a noticeable bonding process that occurs, which is a trait that has become a staple of this unit’s line of atta ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]