Summary

HandWiki is the world's largest wiki-style encyclopedia dedicated to science, technology and computing. It allows you to create and edit articles as long as you have external citations and login account. In addition, this is a content management environment that can be used for collaborative editing of original scholarly content, such as books, manuals, monographs and tutorials.

Expand All
Entries
Topic Review
Saṅkhāra
Saṅkhāra (Pali; सङ्खार; Sanskrit: संस्कार or saṃskāra) is a term figuring prominently in Buddhism. The word means 'formations' or 'that which has been put together' and 'that which puts together'. In the first (passive) sense, saṅkhāra refers to conditioned phenomena generally but specifically to all mental "dispositions". These are called 'volitional formations' both because they are formed as a result of volition and because they are causes for the arising of future volitional actions. English translations for saṅkhāra in the first sense of the word include 'conditioned things,' 'determinations,' 'fabrications' and 'formations' (or, particularly when referring to mental processes, 'volitional formations'). In the second (active) sense of the word, saṅkhāra refers to karma (sankhara-khandha) that leads to conditioned arising, dependent origination. According to the Vijnanavada school, there are 51 samskaras or mental factors.
  • 3.8K
  • 09 Nov 2022
Topic Review
Gender Fair Language
Gender fair language (GFL) is language used with the intention of reducing gender bias in one's mental representation, or mental understanding of an idea. Gender fair language includes gender-neutral (English singular they) and gender-inclusive language (English he or she). Feminization strategies of gender fair language use gender-inclusive language. Neutralization strategies of gender fair language use gender-neutral language. Some languages however are genderless rendering such strategies superfluous. Gender fair language focuses on grammatical gender, where gender is marked grammatically in the language. Gender fair language does not interact with gender noun classes, in which some languages categorize nouns. Gender fair language concerns grammatical gender marking on nouns that reference humans, where the gender marking is in accordance with the gender of the human. Gender marking occurs the most in gendered languages, like German, Spanish, and French, where all nouns are grammatically gendered. In these languages, gender fair language generally applies to nouns, pronouns, role nouns (e.g. German der Lehrer "teacher; m."), and possessive pronouns. Grammatical gender is also marked to a lesser extent in natural gender languages, like English and Swedish, in which animate referents are grammatically gendered according to their intrinsic gender. In these languages, gender fair language generally applies only to pronouns and possessive pronouns. Every language has its own method for grammatical gender marking, and thus gender fair language applies differently to each language to match its need.
  • 23.4K
  • 09 Nov 2022
Topic Review
Anaesthetic Vaporizer
An anaesthetic vaporizer is a device generally attached to an anaesthetic machine which delivers a given concentration of a volatile anaesthetic agent. It works by controlling the vaporisation of anaesthetic agents from liquid, and then accurately controlling the concentration in which these are added to the fresh gas flow. The design of these devices takes account of varying: ambient temperature, fresh gas flow, and agent vapour pressure.
  • 979
  • 09 Nov 2022
Topic Review
Plug-In Electric Vehicles in Canada
The stock of plug-in electric passenger cars in Canada in use totaled 141,060 units at the end of 2019, consisting of 78,680 all-electric cars and 62,380 plug-in hybrids. Sales totaled 50,960 units in 2019. The Chevrolet Volt was the top selling plug-in hybrid, with cumulative sales of 13,619 units through December 2017, and the Tesla Model S was the top selling all-electric car with 6,731 units as of December 2017. Quebec is the regional market leader in Canada, with about 11,000 plug-in electric cars registered (As of September 2016), of which, 55% are plug-in hybrids. Registrations in the province totaled 3,100 units in 2015, representing a market share of 0.7% of new car sales, and 45% of total Canadian plug-in electric car sales that year.
  • 1.5K
  • 09 Nov 2022
Topic Review
Galanin
Galanin is a neuropeptide encoded by the GAL gene, that is widely expressed in the brain, spinal cord, and gut of humans as well as other mammals. Galanin signaling occurs through three G protein-coupled receptors. Much of galanin's functional role is still undiscovered. Galanin is closely involved in the modulation and inhibition of action potentials in neurons. Galanin has been implicated in many biologically diverse functions, including: nociception, waking and sleep regulation, cognition, feeding, regulation of mood, regulation of blood pressure, it also has roles in development as well as acting as a trophic factor. Galanin neurons in the medial preoptic area of the hypothalamus may govern parental behaviour. Galanin is linked to a number of diseases including Alzheimer's disease, epilepsy as well as depression, eating disorders, cancer, and addiction. Galanin appears to have neuroprotective activity as its biosynthesis is increased 2-10 fold upon axotomy in the peripheral nervous system as well as when seizure activity occurs in the brain. It may also promote neurogenesis. Galanin is predominantly an inhibitory, hyperpolarizing neuropeptide and as such inhibits neurotransmitter release. Galanin is often co-localized with classical neurotransmitters such as acetylcholine, serotonin, and norepinephrine, and also with other neuromodulators such as neuropeptide Y, substance P, and vasoactive intestinal peptide.
  • 645
  • 09 Nov 2022
Topic Review
Daisyworld
Daisyworld, a computer simulation, is a hypothetical world orbiting a star whose radiant energy is slowly increasing or decreasing. It is meant to mimic important elements of the Earth-Sun system, and was introduced by James Lovelock and Andrew Watson in a paper published in 1983 to illustrate the plausibility of the Gaia hypothesis. In the original 1983 version, Daisyworld is seeded with two varieties of daisy as its only life forms: black daisies and white daisies. White petaled daisies reflect light, while black petaled daisies absorb light. The simulation tracks the two daisy populations and the surface temperature of Daisyworld as the sun's rays grow more powerful. The surface temperature of Daisyworld remains almost constant over a broad range of solar output.
  • 912
  • 09 Nov 2022
Topic Review
Pressure Flow Hypothesis
The Pressure Flow Hypothesis, also known as the Mass Flow Hypothesis, is the best-supported theory to explain the movement of sap through the phloem. It was proposed by Ernst Munch, a Germany plant physiologist in 1930. A high concentration of organic substances, particularly sugar, inside cells of the phloem at a source, such as a leaf, creates a diffusion gradient (osmotic gradient) that draws water into the cells from the adjacent xylem. This creates turgor pressure, also known as hydrostatic pressure, in the phloem. Movement of phloem sap occurs by bulk flow (mass flow) from sugar sources to sugar sinks. The movement in phloem is bidirectional, whereas, in xylem cells, it is unidirectional (upward). Because of this multi-directional flow, coupled with the fact that sap cannot move with ease between adjacent sieve-tubes, it is not unusual for sap in adjacent sieve-tubes to be flowing in opposite directions.
  • 2.4K
  • 09 Nov 2022
Topic Review
MediaWiki Extension
MediaWiki extensions allow MediaWiki to be made more advanced and useful for various purposes. These extensions vary greatly in complexity. The Wikimedia Foundation operates a Git server where many extensions are hosted, and a directory of them can be found on the MediaWiki website. Some other sites also are known for development of—or support for—extensions are MediaWiki.org, which maintains an extension matrix; and Google Code. MediaWiki code review is itself facilitated through a Gerrit instance. Since version 1.16 MediaWiki also used the jQuery library.
  • 1.4K
  • 09 Nov 2022
Topic Review
Asian Migrant Brides in Japan
The increasing number of Asian migrant brides in Japan (Japanese: 嫁不足) marrying Japanese men is a phenomenon occurring in both rural and urban Japan . Since the mid 1980s, rural Japanese men have begun taking foreign Asian brides, from the Philippines , Sri Lanka, Thailand, China and South Korea , as a way of compensating for the reduced number of Japanese women of marriageable, childbearing age who are willing to marry rural Japanese men. The phenomenon later spread to urban parts of Japan as well. The phenomenon has created a new industry of foreign marriage brokering that uses both local governments and private organizations to facilitate the immigration of foreign brides. This is largely a result of an aging population in Japan where approximately 20% of the population is over the age of 65, which is exceptionally high, a fertility rate of only 1.3, and increased opportunities for women and increased costs in child care.
  • 1.1K
  • 09 Nov 2022
Topic Review
Light-independent Reactions
The light-independent reactions, or dark reactions, of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside the thylakoid membranes. These reactions take the products (ATP and NADPH) of light-dependent reactions and perform further chemical processes on them.
  • 6.7K
  • 09 Nov 2022
  • Page
  • of
  • 863
>>