Status: Extinct Most of the members of the Black family were highly devoted to the Dark Arts. The Black family home is 12 Grimmauld Place, which contains many artifacts of dubious origin; there is also a family tree, now highly incomplete. The reason for the incompleteness is that whenever the family produced anyone the elders disapproved of, the rejected one was disowned and burned off the tapestry. This is what happened to Sirius Black, and to Andromeda Black, who married Muggle-born Ted Tonks. The Family Tree ...

See also:

Blood purity Harry Potter, Blood purity Harry Potter - Description, Blood purity Harry Potter - Importance in series, Blood purity Harry Potter - Segregation in the Wizarding World, Blood purity Harry Potter - Categories by Blood, Blood purity Harry Potter - Pure-blood, Blood purity Harry Potter - Half-blood, Blood purity Harry Potter - Muggle-born, Blood purity Harry Potter - Between Both Worlds, Blood purity Harry Potter - Squibs, Blood purity Harry Potter - Muggles who know about magic, Blood purity Harry Potter - Notable Pure-Blooded Families, Blood purity Harry Potter - Notable Individuals, Blood purity Harry Potter - Notable Pure-Bloods, Blood purity Harry Potter - Notable Half-Bloods and Half-Breeds, Blood purity Harry Potter - Notable Muggle-borns, Blood purity Harry Potter - Notable Squibs, Blood purity Harry Potter - Intolerance

Read more here: » Blood purity Harry Potter: Encyclopedia II - Blood purity Harry Potter - Notable Pure-Blooded Families

One of the most appealing aspects of Joy is this: the meaning function is a homomorphism from the syntactic monoid onto the semantic monoid. That is, the syntactic relation of concatenation of symbols maps directly onto the semantic relation of composition of functions. It is a homomorphism instead of an isomorphism because it is onto but not one-to-one, that is, some sequences of symbols have the same meaning ( ...

See also:

Joy programming language, Joy programming language - Mathematical purity, Joy programming language - External link

Read more here: » Joy programming language: Encyclopedia II - Joy programming language - Mathematical purity

Semiconductors with predictable, reliable electronic properties are necessary for mass production. The level of chemical purity needed is extremely high because the presence of impurities even in very small proportions can have large effects on the properties of the material. A high degree of crystalline perfection is also required, since faults in crystal structure (such as dislocations, twins, and stacking faults) interfere with the semiconducting properties of the material. Crystalline faults are a major cause of defective semiconductor d ...

See also:

Semiconductor, Semiconductor - Fundamental semiconductor physics, Semiconductor - Band structure of a semiconductor, Semiconductor - Doping of semiconductors, Semiconductor - Intrinsic and extrinsic semiconductors, Semiconductor - N-type doping, Semiconductor - P-type doping, Semiconductor - Carrier concentrations, Semiconductor - P-N junctions, Semiconductor - Required purity and perfection of semiconductor materials, Semiconductor - Encompassing fields, Semiconductor - Sub-fields, Semiconductor - Concepts

Read more here: » Semiconductor: Encyclopedia II - Semiconductor - Required purity and perfection of semiconductor materials

In addition the compressed air output from the compressor must be filtered to make it fit for use as a breathing gas. The following filters remove: Water - silica gel, activated alumina or a molecular sieve Oil - activated carbon or a molecular sieve Periodically the gas produced by a compressor must be tested to ensure it meets air purity standards. The following impurities are checked: Carbon dioxide Carbon monoxide Lubricating oil vapour Nitrogen dioxide Odor and taste< ...

See also:

Diving air compressor, Diving air compressor - Machinery, Diving air compressor - Air purity, Diving air compressor - The bank, Diving air compressor - Filling heat, Diving air compressor - Gas blending

Read more here: » Diving air compressor: Encyclopedia II - Diving air compressor - Air purity

Most purebred cats and dogs of breeds recognized by all-breed club registries are controlled by "closed studbooks". In a number of modern breeds recognized by the kennel clubs, there are high incidences of specific genetic diseases or disorders and sometimes increased susceptibility to other diseases, reduced litter sizes, reduced lifespan, inability to conceive naturally, etc. This came about because: Many breeds have been established with too few foundation dogs or ones that were already too closely related, or both T ...

See also:

Selective breeding, Selective breeding - Selective Breeding Methods, Selective breeding - Closed vs. open studbook, Selective breeding - Crossbreeding and backbreeding, Selective breeding - Purebred Cats Dogs and the Debate over 'Breed Purity', Selective breeding - Purebreds

Read more here: » Selective breeding: Encyclopedia II - Selective breeding - Purebred Cats Dogs and the Debate over 'Breed Purity'

saucha: (Sanskrit) "Purity."

See: purity-impurity, yamaniyama.

(See also: Saucha, Hinduism, Body Mind and Soul)

The vast majority of Roma, however, were to suffer the same indignities as the Jews, and in some instances, they suffered even more brutally. According to Porajmos historian Ian Hancock, proportionately, the Roma death toll equaled "and almost certainly exceed[ed], that of Jewish victims."[1] They were herded into ghettos, including the Warsaw Ghetto (April-June, 1942), where they formed a distinct subclass. According to Ghetto diarist Emmanuel Ringelblu ...

See also:

Porajmos, Porajmos - Aryan Racial Purity, Porajmos - Loss of citizenship, Porajmos - Extermination, Porajmos - Notes, Porajmos - Resources

Read more here: » Porajmos: Encyclopedia II - Porajmos - Extermination

The very idea of 'breed purity' often strikes an unpleasant chord with modern animal fanciers because it is reminiscent of nineteenth-century eugenics notions of the "superior strain" which were supposedly exemplified by human aristocracies and thoroughbred horses. The application of theories of eugenics has had far-reaching consequences for human beings, and the observable phenomenon of hybrid vigor stands in sharp contrast. The idea of the superior strain was that by "breeding the best to the best," employing sustained inbreeding an ...

See also:

Selective breeding, Selective breeding - Selective Breeding Methods, Selective breeding - Closed vs. open studbook, Selective breeding - Crossbreeding and backbreeding, Selective breeding - Purebred Cats Dogs and the Debate over 'Breed Purity', Selective breeding - Purebreds

Read more here: » Selective breeding: Encyclopedia II - Selective breeding - Purebreds

Niddah - Biblical sources. The Torah teaches: "Do not draw close to a woman when she is a niddah; (sexual intercourse) relations are forbidden (at that time)." (Leviticus: 15:19-24, 18:19, 20:18). From this, the laws relating to "ritual purity" or "family purity" and niddah are derived. The extent to which these laws are followed depend on the movements within Judaism. These laws are strictly followed in the more traditional Orthodox Judaism, and are often reinterpreted in the progressive mov ...

See also:

Niddah, Niddah - Basic principles, Niddah - Biblical sources, Niddah - What is Niddah?, Niddah - What it is not, Niddah - Reasons for practice, Niddah - Need for Tahara - purity, Niddah - Reasons for the niddah laws, Niddah - In practice, Niddah - Calculation of the niddah period, Niddah - Checking with a white bedikah cloth, Niddah - Immersing in the mikvah, Niddah - Guiding marital relations, Niddah - Views of Conservative Judaism, Niddah - Interconnected topics, Niddah - Other related traditions, Niddah - Sex in Judaism

Read more here: » Niddah: Encyclopedia II - Niddah - Basic principles

The performance of a radio's VFO strongly influences the performance of the radio itself. VFO - Accuracy. It is useful if the frequency produced by the VFO is both stable and repeatable. An unstable VFO's output frequency will drift with time. The root cause of this can often be traced to temperature dependency in some of the voltages and component values involved. Often as radios warm up it is necessary slightly to re-tune t ...

See also:

VFO, VFO - Why do radios need a VFO?, VFO - Analogue VFO, VFO - Tuning Capacitor, VFO - Varactor, VFO - Digital VFO, VFO - Digital Frequency Synthesis, VFO - Performance, VFO - Accuracy, VFO - Purity, VFO - Crystal control

Read more here: » VFO: Encyclopedia II - VFO - Performance

Niddah - Need for Tahara - purity. A woman is a niddah until she undergoes taharah ("purification"). The taharah process involves a minimum of twelve days, most often thirteen. These are divided into two sets of time, the "first five days", and "seven days of taharah", after which she must immerse properly in a mikvah (ritual bath). A woman who does not go through the taharah process cannot become tahor ("pure", the "opposite" state from niddah), even if an extended pe ...

See also:

Niddah, Niddah - Basic principles, Niddah - Biblical sources, Niddah - What is Niddah?, Niddah - What it is not, Niddah - Reasons for practice, Niddah - Need for Tahara - purity, Niddah - Reasons for the niddah laws, Niddah - In practice, Niddah - Calculation of the niddah period, Niddah - Checking with a white bedikah cloth, Niddah - Immersing in the mikvah, Niddah - Guiding marital relations, Niddah - Views of Conservative Judaism, Niddah - Interconnected topics, Niddah - Other related traditions, Niddah - Sex in Judaism

Read more here: » Niddah: Encyclopedia II - Niddah - Reasons for practice

This comparison between practice and "seven relay chariots" points at the goal. Each purity is needed to attain the next. Purity in terms of virtue Purity in terms of mind (that is, concentration) Purity in terms of view Purity in terms of the overcoming of perplexity Purity in terms of knowledge and vision of what is and what is not the path Purity in terms of knowledge and vison of the way Purity in terms of knowledge and vision Unbinding through lack of clinging Even purity in terms of knowledge and vision is simply for th ...

See also:

Visuddhimagga, Visuddhimagga - Summary, Visuddhimagga - Seven steps

Read more here: » Visuddhimagga: Encyclopedia II - Visuddhimagga - Seven steps

In the Yazidi worldview, God created the world, which is now in the care of a Heptad of seven Holy Beings, often known as Angels or heft sirr (the Seven Mysteries). Pre-eminent among these is Malak Ta’us (Tawûsê Melek in Kurdish), the Peacock Angel, who is equated with Satan or Devil by some Muslims and Christians. "The reason for the Yazidis reputation of being devil worshipers, is connected to the other name of Malak Ta'us, Shaytan, ...

See also:

Yazidi, Yazidi - Origins, Yazidi - Religious Beliefs, Yazidi - Yazidism and Zoroastrianism, Yazidi - Religious Practices, Yazidi - Prayers, Yazidi - Pilgrimage, Yazidi - Festivals, Yazidi - Purity and Taboos, Yazidi - Customs, Yazidi - Myths, Yazidi - Recent History, Yazidi - Views of outsiders fiction and stereotypes, Yazidi - Academic texts about Yazidis

Read more here: » Yazidi: Encyclopedia II - Yazidi - Religious Beliefs

There continues to be a debate on the purposes and meaning of the laws regarding Kashrut. In Jewish philosophy it is recognized that many of the 613 mitzvot cannot be explained rationally. They are categorized as chukim, comprising such laws as the Red Heifer (Numbers 19). There are three basic points of view regarding these laws: One view holds that these laws do have a reason, but it is not understood because the ultimate explanation for mitzvot is beyond the human intellect. A second view holds t ...

See also:

Kashrut, Kashrut - Types of foods, Kashrut - Identification of kosher foods, Kashrut - Reasons for the Biblical dietary laws, Kashrut - Ritual purity and holiness, Kashrut - Symbolic purpose, Kashrut - Maintenance of a separate culture, Kashrut - Hygiene, Kashrut - Other reasons, Kashrut - U.S. Laws regarding use of word Kosher, Kashrut - How kashrut is viewed by Judaism today, Kashrut - Vegetarianism, Kashrut - Kashrut and animal welfare, Kashrut - Kashrut and Islam, Kashrut - Notes

Read more here: » Kashrut: Encyclopedia II - Kashrut - Reasons for the Biblical dietary laws

Niddah - Calculation of the niddah period. The first five days begin when a woman first sees her monthly vaginal blood flow. She counts from the beginning of the flow, and continues until the flow stops. If it takes less than five days for her flow to stop, she still has to wait until five days are over. Even if she saw blood for only one day, she must wait five days until she can begin the seven-day taharah ("purification") process. The five days need not be complete five days. The first day might start in the middle of the day, if she first saw her flow in the afternoon. But whenever they began, they ...

See also:

Niddah, Niddah - Basic principles, Niddah - Biblical sources, Niddah - What is Niddah?, Niddah - What it is not, Niddah - Reasons for practice, Niddah - Need for Tahara - purity, Niddah - Reasons for the niddah laws, Niddah - In practice, Niddah - Calculation of the niddah period, Niddah - Checking with a white bedikah cloth, Niddah - Immersing in the mikvah, Niddah - Guiding marital relations, Niddah - Views of Conservative Judaism, Niddah - Interconnected topics, Niddah - Other related traditions, Niddah - Sex in Judaism

Read more here: » Niddah: Encyclopedia II - Niddah - In practice

MSM has been purported to have anti-inflammatory (Hasegawa, 2004; Childs, 1994; Murav'ev IuV et al, 1991; Parcell, 2002; Usha & Naidu, 2004) and anti-cancer (McCabe et al, 1986; O'Dwyer et al, 1988; Ebisuzaki, 2003; Wang et al, 2003a; Wang et al, 2003b) properties and to inhibit prostacyclin (PGI2) synthesis in cultured cells of the endothelium (Alam & Layman, 1983; Layman, 1987), an action that is believed to combat atherosclerosis. The therapeutic action of dimethyl sulfoxide (DMSO) may be mediated, at least in part, by MSM (Gerhards & Gibian, 1967; ...

See also:

Methylsulfonylmethane, Methylsulfonylmethane - Claims of beneficial effects, Methylsulfonylmethane - Animal studies, Methylsulfonylmethane - Human studies, Methylsulfonylmethane - Toxicity, Methylsulfonylmethane - Dose, Methylsulfonylmethane - Manufacturing and purity, Methylsulfonylmethane - References

Read more here: » Methylsulfonylmethane: Encyclopedia II - Methylsulfonylmethane - Claims of beneficial effects

Many feminists regard beauty contests for women as degrading to females in general, as well as to the women who compete in them. A common comparison made by feminists is that beauty contests are like a cattle market for women. They have particularly objected to swimsuit rounds in competitions, where the contestants parade dressed only in swimsuits and high heeled shoes. Partly because of this, beauty contests have declined ...

See also:

Beauty contest, Beauty contest - Beauty contests and politics, Beauty contest - Beauty contests and sexual purity, Beauty contest - Selecting a Beauty Queen, Beauty contest - Beauty contests and race

Read more here: » Beauty contest: Encyclopedia II - Beauty contest - Beauty contests and politics

First and foremost, the Yazidi have a highy cryptic religion, and might in fact be crypto-pagans. That is, they have had to suppress and hide many aspects of their religion from the dominant Muslims around them. Thus, only the initiated actually know the full theology, even among the Yazidi. In 'going cryptic', they have adopted Arabic terminology, and thus refer to their leaders as 'sheiks', for example. They have also come under criticism by Muslims for not being a 'People of the Book', and in response to that have stated that they do, in ...

See also:

Yazidi, Yazidi - Origins, Yazidi - Religious Beliefs, Yazidi - Yazidism and Zoroastrianism, Yazidi - Organization, Yazidi - Religious Practices, Yazidi - Prayers, Yazidi - Pilgrimage, Yazidi - Festivals, Yazidi - Purity and Taboos, Yazidi - Customs, Yazidi - Myths, Yazidi - Recent History, Yazidi - Views of outsiders fiction and stereotypes, Yazidi - Academic texts about Yazidis

Read more here: » Yazidi: Encyclopedia II - Yazidi - Religious Beliefs

Modern diving compressors are often three stage-reciprocating air compressors that use ceramic lined cylinders with ‘O’ rings, not piston rings, requiring no lubrication. Oil in the compressed air may cause the diver medical or respiration problems. Compressor operators must only use lubricants specified by the compressor's manufacturer. There is a risk of carbon monoxide poisoning if any oil in the compressor partially burns. The compression process helps remove water from the gas making it dry, which is good for preventing rust in diving cylinders but causes dehydra ...

See also:

Diving air compressor, Diving air compressor - Machinery, Diving air compressor - Air purity, Diving air compressor - The bank, Diving air compressor - Filling heat, Diving air compressor - Gas blending

Read more here: » Diving air compressor: Encyclopedia II - Diving air compressor - Machinery

Often compressors are connected to a "bank" of large, high-pressure cylinders to store compressed gas, for use at peak times. As cheap and low-powered compressors are relatively slow at pumping gas, the bank can filled automatically during idle periods storing a large volume of pressurized air so that a batch of cylinders can be filled quickly one after the other without being delayed by the slow running compressor. The "cascade system" is used to decant economically from banks of storage cylinders. This involves filling a diving cyli ...

See also:

Diving air compressor, Diving air compressor - Machinery, Diving air compressor - Air purity, Diving air compressor - The bank, Diving air compressor - Filling heat, Diving air compressor - Gas blending

Read more here: » Diving air compressor: Encyclopedia II - Diving air compressor - The bank

sattva guna: (Sanskrit) "Purity."

The quality of goodness or purity.

See: guna.

(See also: Sattva guna, Hinduism, Body Mind and Soul)