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Topic Review
Frogs in Culture
Frogs play a variety of roles in culture, appearing in folklore and fairy tales such as the Brothers Grimm story of The Frog Prince. In ancient Egypt and Mesopotamia, frogs symbolized fertility, while in classical antiquity, the Greeks and Romans associated frogs with fertility, harmony, and licentiousness. Frogs are the subjects of fables attributed to Aesop, of proverbs in various cultures, and of art. Frog characters such as Kermit the frog and Pepe the Frog feature in popular culture. They are eaten in some parts of the world including France. In Australia, a fondant dessert is known as frog cake.
  • 8.1K
  • 27 Nov 2022
Biography
John F. MacArthur
John Fullerton MacArthur Jr. (born June 19, 1939) is an American Protestant pastor and author known for his internationally syndicated Christian teaching radio and television program Grace to You.[1] He has been the pastor of Grace Community Church, a non-denominational church in Sun Valley, California, since February 9, 1969.[2] He is currently Chancellor Emeritus of The Master's University in
  • 8.1K
  • 15 Nov 2022
Topic Review
Triceratops
Triceratops (/traɪˈsɛrəˌtɒps/ trahy-ser-uh-tops; lit. three-horned face) is a genus of herbivorous chasmosaurine ceratopsid dinosaur that first appeared during the late Maastrichtian stage of the Late Cretaceous period, about 68 million years ago in what is now North America. It is one of the last-known non-avian dinosaur genera, and became extinct in the Cretaceous–Paleogene extinction event 66 million years ago. The name Triceratops, which literally means 'three-horned face', is derived from the Greek words trí- (τρί-) meaning 'three', kéras (κέρας) meaning 'horn', and ṓps (ὤψ) meaning 'face'. Bearing a large bony frill, three horns on the skull, and a large four-legged body, exhibiting convergent evolution with rhinoceroses and bovines, Triceratops is one of the most recognizable of all dinosaurs and the most well-known ceratopsid. It was also one of the largest, up to 8–9 metres (26–30 ft) long and 5–9 metric tons (5.5–9.9 short tons) in body mass. It shared the landscape with and was most likely preyed upon by Tyrannosaurus, though it is less certain that two adults did battle in the fanciful manner often depicted in museum displays and popular images. The functions of the frills and three distinctive facial horns on its head have long inspired debate. Traditionally, these have been viewed as defensive weapons against predators. More recent interpretations find it probable that these features were primarily used in species identification, courtship, and dominance display, much like the antlers and horns of modern ungulates. Triceratops was traditionally placed within the "short-frilled" ceratopsids, but modern cladistic studies show it to be a member of the Chasmosaurinae which usually have long frills. Two species, T. horridus and T. prorsus, are considered valid today, from the seventeen species that have ever been named. Research published in 2010 concluded that the contemporaneous Torosaurus, a ceratopsid long regarded as a separate genus, represents Triceratops in its mature form. This view has been disputed; further data is needed to settle the debate. Triceratops has been documented by numerous remains collected since the genus was first described in 1889 by American paleontologist Othniel Charles Marsh. Specimens representing life stages from hatchling to adult have been found. As the archetypal ceratopsid, Triceratops is one of the most popular dinosaurs, and has been featured in film, postal stamps, and many other types of media.
  • 8.0K
  • 01 Nov 2022
Biography
Victor Hugo
Victor Marie Hugo French: [viktɔʁ maʁi yɡo] 26 February 1802 – 22 May 1885) was a French poet, novelist, and dramatist of the Romantic movement. Hugo is considered to be one of the greatest and best-known French writers. Outside of France, his most famous works are the novels Les Misérables, 1862, and The Hunchback of Notre-Dame (French: Notre-Dame de Paris), 1831. In France, Hugo is kno
  • 8.0K
  • 30 Nov 2022
Biography
Bill Maher
William Maher (/mɑːr/; born January 20, 1956)[1] is an American comedian, political commentator, and television host. He is known for the HBO political talk show Real Time with Bill Maher (2003–present) and the similar late-night show called Politically Incorrect (1993–2002), originally on Comedy Central and later on ABC. Maher is known for his political satire[2] and sociopolitical comme
  • 8.0K
  • 29 Nov 2022
Topic Review
Causes of Transsexuality
The study of the causes of transsexuality investigates gender identity formation of transgender people, especially those who are transsexual. Transgender people have a gender identity that does not match their assigned sex, often resulting in gender dysphoria. The causes of transsexuality have been studied for decades. The most studied factors are biological, especially brain structure differences in relation to biology and sexual orientation. Environmental factors have also been proposed. Transgender brain studies, especially those on trans women who are sexually attracted to women (gynephilic), and those on trans men who are sexually attracted to men (androphilic), are limited, as they include a small number of tested individuals. The available research indicates that the brain structure of androphilic trans women with early-onset gender dysphoria is closer to the brain structure of cisgender women's and less like cisgender men's. It also reports that both androphilic trans women and trans women with late-onset gender dysphoria who are gynephilic have different brain phenotypes, and that gynephilic trans women differ from both cisgender female and male controls in non-dimorphic brain areas. Cortical thickness, which is generally thicker in cisgender women's brains than in cisgender men's brains, may also be thicker in trans women's brains, but is present in a different location to cisgender women's brains. For trans men, research indicates that those with early-onset gender dysphoria and who are gynephilic have brains that generally correspond to their assigned sex, but that they have their own phenotype with respect to cortical thickness, subcortical structures, and white matter microstructure, especially in the right hemisphere. Hormone use can also affect transgender people's brain structure; it can cause transgender women's brains to become closer to those of cisgender women, and morphological increments observed in the brains of trans men might be due to the anabolic effects of testosterone. Twin studies suggest that there are likely genetic causes of transsexuality, although the precise genes involved are not fully understood. One study published in the International Journal of Transgender Health found that 20% of identical twin pairs in which at least one twin was trans were both trans, compared to only 2.6% of non-identical twins who were raised in the same family at the same time, but were not genetically identical. Ray Blanchard created a taxonomy of male-to-female transsexualism that proposes two distinct etiologies for androphilic and gynephilic individuals that has become controversial, supported by J. Michael Bailey, Anne Lawrence, James Cantor and others, but opposed by Charles Allen Moser, Julia Serano, and the World Professional Association for Transgender Health.
  • 7.9K
  • 20 Oct 2022
Biography
Andrew Dickson White
Andrew Dickson White (November 7, 1832 – November 4, 1918) was an American historian and educator, who was the cofounder of Cornell University and served as its first president for nearly two decades. He was known for expanding the scope of college curricula.[1] A politician, he had served as state senator in New York. He was later appointed as a US diplomat to Germany and Russia, among other
  • 7.9K
  • 16 Nov 2022
Topic Review
Megafaunal Wolf
The megafaunal wolf (Canis cf. lupus) was a Late Pleistocene – early Holocene hypercarnivore similar in size to a large extant gray wolf. It had a shorter, broader palate with large carnassial teeth relative to its overall skull size. This adaptation allowed it to prey and scavenge on Pleistocene megafauna. Such an adaptation is an example of phenotypic plasticity. It was once distributed across the northern Holarctic.
  • 7.7K
  • 23 Nov 2022
Topic Review
Grinder (Biohacking)
Grinders are people who apply the hacker ethic to improve their own bodies with do it yourself cybernetic devices or introducing Biochemicals into the body to enhance or change their bodies' functionality. Many grinders identify with the biopunk movement, open-source transhumanism, and techno-progressivism. The Grinder movement is strongly associated with the body modification movement and practices actual implantation of cybernetic devices in organic bodies as a method of working towards transhumanism, such as designing and installing do-it-yourself body-enhancements such as magnetic implants. Biohacking emerged in a growing trend of non-institutional science and technology development. According to Biohack.me, "Grinders are passionate individuals who believe the tools and knowledge of science belong to everyone. Grinders practice functional extreme body modification in an effort to improve the human condition. [Grinders] hack [them]selves with electronic hardware to extend and improve human capacities. Grinders believe in action, [thei]r bodies the experiment." "Biohacking" can also refer to managing one's own biology using a combination of medical, nutritional and electronic techniques. This may include the use of nootropics, non-toxic substances, and/or cybernetic devices for recording biometric data (as in the Quantified Self movement).
  • 7.7K
  • 21 Nov 2022
Topic Review
Dewi Sri
Dewi Sri or Shridevi (Javanese: ꦢꦺꦮꦶꦱꦿꦶ), Dewi Sri) (Sundanese: Nyai Pohaci Sanghyang Asri) is the Javanese, Sundanese, and Balinese Hindu Goddess of rice and fertility, still widely worshiped on the islands of Java, Bali and Lombok, Indonesia. The cult of the rice goddess has its origin in the prehistoric domestication, development and propagation of rice cultivation in Asia, possibly brought by Austroasiatic or Austronesian population that finally migrated and settled in the archipelago. Similar but slightly different rice spirits mythologies are widespread among Indonesian ethnicities and also neighboring countries. The mythology of Dewi Sri is native to Java and Sunda and Hinduism in the archipelago since early as the first century. She was equated with the Hindu goddess Shri Lakshmi, and often regarded as an incarnation or one of her manifestations. The goddess is also associated with wealth and prosperity.
  • 7.6K
  • 11 Oct 2022
Biography
James Gosling
James Arthur Gosling, OC (born May 19, 1955) is a Canadian computer scientist, best known as the founder and lead designer behind the Java programming language.[1] James Gosling received a Bachelor of Science from the University of Calgary [2] and his M.A. and Ph.D. from Carnegie Mellon University, all in computer science.[3][4][5] He wrote a version of Emacs called Gosling Emacs (Gosmacs) wh
  • 7.6K
  • 24 Nov 2022
Biography
Paracelsus
Paracelsus (/ˌpærəˈsɛlsəs/; 1493/4[1] – 24 September 1541), born Theophrastus von Hohenheim (full name Philippus Aureolus Theophrastus Bombastus von Hohenheim[2]), was a Swiss[3] physician, alchemist, and astrologer of the German Renaissance.[4][5] He was a pioneer in several aspects of the "medical revolution" of the Renaissance, emphasizing the value of observation in combination with
  • 7.5K
  • 25 Nov 2022
Topic Review
Ray-Finned Fish
Actinopterygii (/ˌæktɪnɒptəˈrɪdʒiaɪ/; from actino- 'having rays', and grc πτέρυξ (ptérux) 'wing, fins'), members of which are known as ray-finned fishes, is a clade (traditionally class or subclass) of the bony fishes. They comprise over 50% of living vertebrate species. The ray-finned fishes are so-called because their fins are webs of skin supported by bony or horny spines (rays), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii (lobe-finned fish). These actinopterygian fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the link or connection between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). By species count, actinopterygians dominate the vertebrates, and they comprise nearly 99% of the over 30,000 species of fish. They are ubiquitous throughout freshwater and marine environments from the deep sea to the highest mountain streams. Extant species can range in size from Paedocypris, at 8 mm (0.3 in), to the massive ocean sunfish, at 2,300 kg (5,070 lb), and the long-bodied oarfish, at 11 m (36 ft). The vast majority of Actinopterygii (~99%) are teleosts.
  • 7.5K
  • 29 Nov 2022
Topic Review
Friends with Benefits Relationships
Friends with benefits relationships (FWB or FWBR) is a term commonly used to reference a relationship that is sexual without being romantic. Typically, these relationships can be between people that consider themselves platonic friends without pressure. These non-committal relationships can be short term, or evolve into serious romantic relationships. In an era of increased sexual liberation, casual sexual relationships continue to become more prominent. Studies show an increasing number of college students, both male and female, report having a friends with benefits relationship at some point. FWB relationships are enjoyed by both women and men, this is in contrast to casual sexual encounters which are more prevalent among men.
  • 7.4K
  • 27 Oct 2022
Topic Review
Parallel Processing (Psychology)
In psychology, parallel processing is the ability of the brain to simultaneously process incoming stimuli of differing quality. Parallel processing is associated with the visual system in that the brain divides what it sees into four components: color, motion, shape, and depth. These are individually analyzed and then compared to stored memories, which helps the brain identify what you are viewing. The brain then combines all of these into the field of view that then seen and comprehended. Parallel processing has been linked, by some experimental psychologists, to the stroop effect. This is a continual and seamless operation. For example, if one is standing between two different groups of people who are simultaneously carrying on two different conversations, one may be able to pick up only some information of both conversation at the same time.
  • 7.4K
  • 02 Dec 2022
Biography
Mata Amritanandamayi
Mātā Amritānandamayī Devī (born Sudhamani Idamannel; 27 September 1953), often known simply as Amma ("Mother"), is an Indian Hindu spiritual leader, guru and humanitarian,[1][2] who is revered as 'the hugging saint' by her followers.[3] Mātā Amritānandamayī Devi is an Indian guru from Parayakadavu (now partially known as Amritapuri), Alappad Panchayat in Karunagappally, Kollam Distri
  • 7.1K
  • 16 Nov 2022
Biography
Fritz Haber
Fritz Haber (9 December 1868 – 29 January 1934) was a German[1] chemist who received the Nobel Prize in Chemistry in 1918 for his invention of the Haber–Bosch process, a method used in industry to synthesize ammonia from nitrogen gas and hydrogen gas. This invention is of importance for the large-scale synthesis of fertilizers and explosives. The food production for half the world's current
  • 7.0K
  • 28 Nov 2022
Biography
Mohamed Al-Fayed
Mohamed Al-Fayed (/ælfaɪˈɛd/; Egyptian Arabic: محمد أنور شاكر عبد السيد الفايد‎ [mahamad el fajed]; born 27 January 1929) is an Egyptian business magnate. Fayed's business interests include ownership of Hôtel Ritz Paris and formerly Harrods Department Store, Knightsbridge. Al-Fayed sold his ownership of Fulham F.C. to Shahid Khan in 2013.[1] In his personal life
  • 7.0K
  • 05 Dec 2022
Topic Review
Solubility of Oxygen and Hydrogen in Water
Produced by photosynthesis, oxygen (O2) is a fundamentally important gas in biological systems, playing roles as a terminal electron receptor in respiration and in host defence through the creation of reactive oxygen species (ROS). Hydrogen (H2) plays a role in metabolism for some organisms, such as at thermal vents and in the gut environment, but has a role in controlling growth and development, and in disease states, both in plants and animals.
  • 7.0K
  • 28 Feb 2024
Topic Review
West African Lion
The West African lion is a Panthera leo leo population in West Africa. It is listed as Critically Endangered on the IUCN Red List. This population is isolated and probably comprises fewer than 250 mature individuals. Already in 2004, the lion population in West and Central Africa was fragmented and estimated as comprising at most 1,800 individuals. The West African lion was formerly considered a distinct lion subspecies with the scientific name P. l. senegalensis. Results of phylogenetic research indicate that the West African lion population forms a distinct clade and is closely related to Central African, North African and Asian lion populations. The lion populations in North, West and Central Africa and Asia were therefore subsumed to P. l. leo in 2017.
  • 7.0K
  • 17 Oct 2022
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