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Topic Review
List of Oxidation States of the Elements
This is a list of known oxidation states of the chemical elements, excluding nonintegral values. The most common states appear in bold. The table is based on that of Greenwood and Earnshaw, with additions noted. Oxidation state 0, which occurs for all elements, is implied by the column with the symbol of the element. The format of the table, which was devised by Dmitri Mendeleev in 1889, shows the periodicity of the oxidation states of the elements.
  • 16.0K
  • 18 Oct 2022
Topic Review
Social Integration
Social integration is the process during which newcomers or minorities are incorporated into the social structure of the host society. Social integration, together with economic integration and identity integration, are three main dimensions of a newcomers' experiences in the society that is receiving them. A higher extent of social integration contributes to a closer social distance between groups and more consistent values and practices. Bringing together various ethnic groups irrespective of language, caste, creed, etc., without losing one's identity. It gives access to all areas of community life and eliminates segregation. In a broader view, social integration is a dynamic and structured process in which all members participate in dialogue to achieve and maintain peaceful social relations. Social integration does not mean forced assimilation. Social integration is focused on the need to move toward a safe, stable and just society by mending conditions of social conflict, social disintegration, social exclusion, social fragmentation, exclusion and polarization, and by expanding and strengthening conditions of social integration towards peaceful social relations of coexistence, collaboration and cohesion.
  • 16.0K
  • 08 Nov 2022
Topic Review
List of Devices with LTE Advanced
List of devices with LTE Advanced support. LTE is a standard for wireless communication and LTE Advanced (Cat 6 and above) is a high speed version of LTE, sometimes marketed as LTE+, 4G+, 4GX, 4.5G or 4G LTE Ultra. LTE support varies from country to country, and the speed may vary depending on user location and how fast they're travelling. The list below shows the devices that should support LTE Cat 6 and above.
  • 16.0K
  • 22 Nov 2022
Topic Review
Kangiten
Kangi-ten (Japanese: 歓喜天, "God of Bliss") is a god (deva or ten) in Shingon and Tendai schools of Japanese Buddhism. He is generally considered the Japanese Buddhist form of the Hindu god of wisdom, Ganesha and is sometimes also identified with the bodhisattva Avalokiteshvara. He is also known as Kanki-ten, Shō-ten (聖天, "sacred god" or "noble god"), Daishō-ten ("great noble god"), Daishō Kangi-ten (大聖歓喜天), Tenson (天尊, "venerable god"), Kangi Jizai-ten (歓喜自在天), Shōden-sama, Vinayaka-ten, Binayaka-ten (毘那夜迦天), Ganapatei (誐那缽底) and Zōbi-ten (象鼻天). Kangiten has many aspects and names, associated with Vajrayana (Esoteric Buddhist, Tantric, mantrayana) schools, Shingon being one of them. Although Kangiten is depicted with an elephant's head like Ganesha as a single male deity, his most popular aspect is the Dual(-bodied) Kangiten or the Embracing Kangiten depicted as an elephant-headed male-female human couple standing in an embrace.
  • 16.0K
  • 18 Nov 2022
Topic Review
Traditional Najd Architecture
The research focuses on the architectural typologies and the architectural elements of the cultural heritage in the Najd region. Najd is the great central plateau of Saudi Arabia, of which Riyadh is the most important city and the capital. The contribution leads the architects to rethink the constructive and aesthetic approach in designing and constructing new architectures without forgetting the culture and historical context of reference. The expressiveness of architectural language in terms of the formal and aesthetic approach is a feature that should not be secondary in contemporary buildings. The surface, texture, form, representation, and expression should prevail over aesthetic purposes in architecture.
  • 16.0K
  • 19 Jun 2023
Topic Review
Catholic Church and Evolution
Early contributions to biology were made by Catholic scientists such as Jean-Baptiste Lamarck and the Augustinian monk Gregor Mendel. Since the publication of Charles Darwin's On the Origin of Species in 1859, the attitude of the Catholic Church on the theory of evolution has slowly been refined. For nearly a century, the papacy offered no authoritative pronouncement on Darwin's theories. In the 1950 encyclical Humani generis, Pope Pius XII confirmed that there is no intrinsic conflict between Christianity and the theory of evolution, provided that Christians believe that God created all things and that the individual soul is a direct creation by God and not the product of purely material forces. (As of 2013), the Church supports theistic evolution(ism), also known as evolutionary creation, although Catholics are free not to believe in any part of evolutionary theory. The Catholic Church holds no official position on the theory of creation or evolution, leaving the specifics of either theistic evolution or literal creationism to the individual within certain parameters established by the Church. According to the Catechism of the Catholic Church, any believer may accept either literal or special creation within the period of an actual six-day, twenty-four-hour period, or they may accept the belief that the earth evolved over time under the guidance of God. Catholicism holds that God initiated and continued the process of his evolutionary creation, that Adam and Eve were real people, and affirms that all humans, whether specially created or evolved, have and have always had specially created souls for each individual. Catholic schools in the United States and other countries teach evolution as part of their science curriculum. They teach the fact that evolution occurs and the modern evolutionary synthesis, which is the scientific theory that explains how evolution proceeds.
  • 16.0K
  • 31 Oct 2022
Topic Review
Datasheet
A datasheet, data sheet, or spec sheet is a document that summarizes the performance and other characteristics of a product, machine, component (e.g., an electronic component), material, subsystem (e.g., a power supply), or software in sufficient detail that allows a buyer to understand what the product is and a design engineer to understand the role of the component in the overall system. Typically, a datasheet is created by the manufacturer and begins with an introductory page describing the rest of the document, followed by listings of specific characteristics, with further information on the connectivity of the devices. In cases where there is relevant source code to include, it is usually attached near the end of the document or separated into another file. Datasheets are created, stored, and distributed via product information management or product data management systems. Depending on the specific purpose, a datasheet may offer an average value, a typical value, a typical range, engineering tolerances, or a nominal value. The type and source of data are usually stated on the datasheet. A datasheet is usually used for commercial or technical communication to describe the characteristics of an item or product. It can be published by the manufacturer to help people choose products or to help use the products. By contrast, a technical specification is an explicit set of requirements to be satisfied by a material, product, or service. The ideal datasheet specifies characteristics in a formal structure, according to a strict taxonomy, that allows the information to be processed by a machine. Such machine readable descriptions can facilitate information retrieval, display, design, testing, interfacing, verification, system discovery, and e-commerce. Examples include Open Icecat data-sheets, transducer electronic data sheets for describing sensor characteristics, and Electronic device descriptions in CANopen or descriptions in markup languages, such as SensorML.
  • 15.9K
  • 01 Nov 2022
Topic Review
Tangible Cultural Heritage and Historical Monuments of Morocco
Morocco is impacted by indigenous Berber, Arab, African, and European influences , and is often referred to as Al Maghreb (Arabic meaning "West"). The kingdom, which is the region's only monarchy and is located on North Africa's western edge, has managed to transform its rich cultural heritage into a tolerant state.
  • 15.8K
  • 13 Jan 2022
Topic Review
Cocoyam [Colocasia esculenta (L.) Schott]
Cocoyam [Colocasia esculenta (L.) Schott] also known as taro is regarded as an important staple crop in the Pacific Islands, Asia and Africa.
  • 15.8K
  • 22 Apr 2021
Topic Review
Focal Point (Game Theory)
In game theory, a focal point (or Schelling point) is a solution that people tend to choose by default in the absence of communication. The concept was introduced by the American economist Thomas Schelling in his book The Strategy of Conflict (1960). Schelling states that "(p)eople can often concert their intentions or expectations with others if each knows that the other is trying to do the same" in a cooperative situation (at page 57), so their action would converge on a focal point which has some kind of prominence compared with the environment. However, the conspicuousness of the focal point depends on time, place and people themselves. It may not be a definite solution.
  • 15.8K
  • 14 Nov 2022
Topic Review
Surname
A surname, family name, or last name is the portion (in some cultures) of a personal name that indicates a person's family (or tribe or community, depending on the culture). Depending on the culture, all members of a family unit may have identical surnames or there may be variations based on the cultural rules. In the English-speaking world, a surname is commonly referred to as a last name because it is usually placed at the end of a person's full name, after any given names. In many parts of Asia, as well as some parts of Europe and Africa, the family name is placed before a person's given name. In most Spanish-speaking and Portuguese-speaking countries, two surnames are commonly used and in some families that claim a connection to nobility even three are used. Surnames have not always existed and today are not universal in all cultures. This tradition has arisen separately in different cultures around the world. In Europe, the concept of surnames became popular in the Roman Empire and expanded throughout the Mediterranean and Western Europe as a result. During the Middle Ages this practice died out as Germanic, Persian, and other influences took hold. During the late Middle Ages surnames gradually re-emerged, first in the form of bynames (typically indicating individual's occupation or area of residence), which gradually evolved into modern surnames. In China surnames have been the norm since at least the 2nd century BC. A family name is typically a part of a person's personal name which, according to law or custom, is passed or given to children from one or both of their parents' family names. The use of family names is common in most cultures around the world, with each culture having its own rules as to how these names are formed, passed and used. However, the style of having both a family name (surname) and a given name (forename) is far from universal. In many cultures, it is common for people to have one name or mononym, with some cultures not using family names. In most Slavic countries, as well as other countries including Greece and Iceland, for example, there are different family name forms for male and female members of the family. Issues of family name arise especially on the passing of a name to a new-born child, on the adoption of a common family name on marriage, on renouncing of a family name and on changing of a family name. Surname laws vary around the world. Traditionally in many European countries for the past few hundred years, it was the custom or law that a woman would on marriage use the surname of her husband and that children of a man would have the father's surname. If a child's paternity was not known, or if the putative father denied paternity, the new-born child would have the surname of the mother. That is still the custom or law in many countries. The surname for children of married parents is usually inherited from the father. In recent years there has been a trend towards equality of treatment in relation to family names, with women being not automatically required or expected, or in some places even forbidden, to take the husband's surname on marriage, and children not automatically being given the father's surname. In this article, family name and surname both mean the patrilineal surname, handed down from or inherited from the father's, unless explicitly stated otherwise. Thus, the term "maternal surname" means the patrilineal surname which one's mother inherited from either or both of her parents. For a discussion of matrilineal ('mother-line') surnames, passing from mothers to daughters, see matrilineal surname. In English-speaking cultures, family names are often used by children when referring to adults, but are also used to refer to someone in authority, the elderly, or in a formal setting, and are often used with a title or honorific such as Mr., Mrs., Ms., Miss, Doctor, and so on. It is also common in English-speaking cultures for individuals to be referred to by their surname instead of their given name by their friends. Generally the given name, first name, forename, or personal name is the one used by friends, family, and other intimates to address an individual. It may also be used by someone who is in some way senior to the person being addressed. This practice also differs between cultures; see T–V distinction. The study of proper names (in family names, personal names, or places) is called onomastics. A one-name study is a collection of vital and other biographical data about all persons worldwide sharing a particular surname.
  • 15.7K
  • 24 Oct 2022
Topic Review Peer Reviewed
Revenue Sharing in Professional Sports Leagues
This entry provides a review of economic models of professional sports leagues with and without revenue sharing. These include models that assume profit-maximizing and win-maximizing (sportsmen) club owners. Both approaches predict that revenue sharing will reduce the demand for player talent, depress player salaries, and transfer revenue from large-market to small-market clubs, but they differ on league parity effects. Empirical work has been sparse due to financial data limitations and has not yielded definitive results on the parity issue. Despite the growing awareness of sports economics in the sports industry, the lack of consensus from theoretical models has resulted in sports leagues searching for an optimal revenue sharing policy. The difficulty in providing consistent policy prescriptions in models that incorporate revenue sharing, salary caps, and other league policies has made economic modeling of sports leagues very difficult and complex. While revenue sharing remains an interesting theoretical modeling issue, it has not bridged the gap to real-world league policies.
  • 15.7K
  • 30 Jul 2024
Topic Review
Mukhannathun
Mukhannathun (مخنثون "effeminate ones", "men who resemble women", singular mukhannath) was a term used in Classical Arabic to refer to men who were perceived as effeminate. Mukhannathun, especially those in the city of Medina, are mentioned throughout the ahadith and in the works of many early Arabic and Islamic writers. During the Rashidun era and first half of the Umayyad era, they were strongly associated with music and entertainment. During the Abbasid caliphate, the word itself was used as a descriptor for men employed as dancers, musicians, or comedians. In later eras, the term mukhannath was associated with the receptive partner in gay sexual practices, an association that has persisted into the modern day. Khanith is a vernacular Arabic term used in some parts of the Arabian Peninsula to denote the gender role ascribed to males who function sexually, and in some ways socially, as women. The term is closely related to the word mukhannath.
  • 15.7K
  • 10 Nov 2022
Topic Review
Genetically Modified Food Controversies
Genetically modified food controversies are disputes over the use of foods and other goods derived from genetically modified crops instead of conventional crops, and other uses of genetic engineering in food production. The disputes involve consumers, farmers, biotechnology companies, governmental regulators, non-governmental organizations, and scientists. The key areas of controversy related to genetically modified food (GM food or GMO food) are whether such food should be labeled, the role of government regulators, the objectivity of scientific research and publication, the effect of genetically modified crops on health and the environment, the effect on pesticide resistance, the impact of such crops for farmers, and the role of the crops in feeding the world population. In addition, products derived from GMO organisms play a role in the production of ethanol fuels and pharmaceuticals. Specific concerns include mixing of genetically modified and non-genetically modified products in the food supply, effects of GMOs on the environment, the rigor of the regulatory process, and consolidation of control of the food supply in companies that make and sell GMOs. Advocacy groups such as the Center for Food Safety, Organic Consumers Association, Union of Concerned Scientists, and Greenpeace say risks have not been adequately identified and managed, and they have questioned the objectivity of regulatory authorities. The safety assessment of genetically engineered food products by regulatory bodies starts with an evaluation of whether or not the food is substantially equivalent to non-genetically engineered counterparts that are already deemed fit for human consumption. No reports of ill effects have been documented in the human population from genetically modified food. There is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, but that each GM food needs to be tested on a case-by-case basis before introduction. Nonetheless, members of the public are much less likely than scientists to perceive GM foods as safe. The legal and regulatory status of GM foods varies by country, with some nations banning or restricting them, and others permitting them with widely differing degrees of regulation.
  • 15.7K
  • 08 Oct 2022
Topic Review
Vision in Fishes
Vision is an important sensory system for most species of fish. Fish eyes are similar to the eyes of terrestrial vertebrates like birds and mammals, but have a more spherical lens. Birds and mammals (including humans) normally adjust focus by changing the shape of their lens, but fish normally adjust focus by moving the lens closer to or further from the retina. Fish retinas generally have both rod cells and cone cells (for scotopic and photopic vision), and most species have colour vision. Some fish can see ultraviolet and some are sensitive to polarized light. Among jawless fishes, the lamprey has well-developed eyes, while the hagfish has only primitive eyespots. The ancestors of modern hagfish, thought to be the protovertebrate were evidently pushed to very deep, dark waters, where they were less vulnerable to sighted predators, and where it is advantageous to have a convex eye-spot, which gathers more light than a flat or concave one. Fish vision shows evolutionary adaptation to their visual environment, for example deep sea fish have eyes suited to the dark environment.
  • 15.7K
  • 10 Nov 2022
Topic Review
Neutral Country
A neutral country is a state that is neutral towards belligerents in a specific war or holds itself as permanently neutral in all future conflicts (including avoiding entering into military alliances such as NATO or CSTO). As a type of non-combatant status, nationals of neutral countries enjoy protection under the law of war from belligerent actions to a greater extent than other non-combatants such as enemy civilians and prisoners of war. Different countries interpret their neutrality differently: some, such as Costa Rica, have demilitarized, while Switzerland holds to "armed neutrality", to deter aggression with a sizeable military, while barring itself from foreign deployment. Not all neutral countries avoid any foreign deployment or alliances, as Austria, Ireland, Finland and Sweden have active UN peacekeeping forces and a political alliance within the European Union. Sweden's traditional policy is not to participate in military alliances, with the intention of staying neutral in the case of war. Immediately before World War II, the Nordic countries stated their neutrality, but Sweden changed its position to that of non-belligerent at the start of the Winter War. There have been considerable changes to the interpretation of neutral conduct over the past centuries. During the Cold War, Yugoslavia claimed military and ideological neutrality, and that is continued by its successor, Serbia.
  • 15.7K
  • 01 Dec 2022
Topic Review
List of Space Shuttle Landing Sites
Three locations in the United States were used as landing sites for the Space Shuttle system. Each site included runways of sufficient length to provide adequate distance for the slowing-down of a returning spacecraft. The prime landing site was the Shuttle Landing Facility at the Kennedy Space Center in Florida, a purpose-built landing strip. Landings also occurred at Edwards Air Force Base in California, and one took place at White Sands Space Harbor in New Mexico. No space shuttle landed on a dry lakebed runway after 1991. The first international site was Cartago, Valle in Colombia (CTA). Various international landing sites were also available in the event of a Transoceanic Abort Landing (TAL) scenario, as well as other sites in the United States and Canada in case of an East Coast Abort Landing (ECAL) situation. Space shuttle landings were intended to regularly take place at Vandenberg Air Force Base in California for Department of Defense missions launched from the site, but none occurred due to the cancellation of all launches from Vandenberg.
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  • 02 Nov 2022
Topic Review
Eastern Orthodox Church Organization
The Eastern Orthodox Church is a communion comprising the fourteen or sixteen separate autocephalous (self-governing) hierarchical churches that recognize each other as "canonical" Eastern Orthodox Christian churches. Each constituent church is self-governing; its highest-ranking bishop called the primate (a patriarch, a metropolitan or an archbishop) reports to no higher earthly authority. Each regional church is composed of constituent eparchies (or dioceses) ruled by bishops. Some autocephalous churches have given an eparchy or group of eparchies varying degrees of autonomy (limited self-government). Such autonomous churches maintain varying levels of dependence on their mother church, usually defined in a tomos or other document of autonomy. In many cases, autonomous churches are almost completely self-governing, with the mother church retaining only the right to appoint the highest-ranking bishop (often an archbishop or metropolitan) of the autonomous church. Normal governance is enacted through a synod of bishops within each church. In case of issues that go beyond the scope of a single church, multiple self-governing churches send representatives to a wider synod, sometimes wide enough to be called an Eastern Orthodox "ecumenical council". Such councils are deemed to have authority superior to that of any autocephalous church or its ranking bishop.
  • 15.7K
  • 14 Oct 2022
Topic Review
Amaterasu
Amaterasu (天照), Amaterasu-ōmikami (天照大神／天照大御神／天照皇大神), or Ōhirume-no-muchi-no-kami (大日孁貴神) is a deity of the Japanese myth cycle and also a major deity of the Shinto religion. She is seen as the goddess of the sun and the universe. The name Amaterasu is derived from Amateru and means "shining in heaven". The meaning of her whole name, Amaterasu-ōmikami, is "the great august kami (deity) who shines in the heaven".[N 1] According to the Kojiki and Nihon Shoki chronicles in Japanese mythology, the Emperors of Japan are considered to be direct descendants of Amaterasu.
  • 15.6K
  • 01 Nov 2022
Topic Review
Stonefish: venom components, pathology, distribution
There are five species of stonefish within the genus Synanceia: Synanceia horrida (previously referred to as S. trachynis), S. verrucosa, S. alula, S. nana and S. platyrhyncha. Synanceia spp. can grow 35–50 cm in length and have evolved grey and mottled skin to camouflage themselves amongst encrusted rocks and coral for predation and defense. Synanceia species have up to 15 dorsal fin spines that are erected when the fish is disturbed. Stings from this medically important group of fish are known to cause painful and lethal human envenomations. Stonefish are regarded as one of the most venomous fish in the world. Research on stonefish venom has chiefly focused on the in vitro and in vivo neurological, cardiovascular, cytotoxic and nociceptive effects of the venom.
  • 15.6K
  • 17 Jun 2021
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