Certain ratios of these materials will provide beneficial bacteria with the nutrients to work at a rate that will heat up the pile.

Certain soft or elastic materials become hard and brittle at very low temperatures, which makes cryogenic milling ( cryomilling ) an option for some materials that cannot easily be milled at higher temperatures.

Certain transparent materials with a small concentration of neodymium ions can be used in lasers as gain media for infrared wavelengths ( 1054 – 1064 nm ), e. g. Nd: YAG ( yttrium aluminium garnet ), Nd: YLF ( yttrium lithium fluoride ), Nd: YVO < sub > 4 </ sub > ( yttrium orthovanadate ), and Nd: glass.

Certain illumination algorithms and reflective or translucent materials may require more rays to be re-cast into the scene.

Certain image capturing devices are capable of producing images through materials that are opaque to visible light, including clothing.

Certain materials change their optical properties when subjected to an electric field.

Certain materials have a sweet spot in terms of density that makes them particularly useful in this role.

Certain ceramic materials have low density, chemical inertness, high strength, hardness and temperature capability ; nanocrystalline ceramics have even greater strength and higher superplasticity.

Certain kinds of filters use other materials inside a glass sandwich ; for example, polarizers often use various special films, netting filters have nylon netting, and so forth.

Certain materials used in the manufacture of clothing, such as cotton, wool, and linen, contain numerous very short fibers bundled together.

Certain countries, such as those belonging to the EU, have legal regulations specifying which materials can be used in new piercings.

Certain specific health, safety, and materials programs were transferred to the Department of Energy, and certain minerals information activities moved to the U. S. Geological Survey and the Bureau of Land Management.

Certain government bureaucracies, such as a department of motor vehicles will issue an abstract of a completed transaction or an updated record intended to serve as a proof of compliance with some administrative requirement.

Certain specific conditions are excluded as disabilities, such as current substance abuse and visual impairment that is correctable by prescription lenses.

Certain indigenous religious groups such as the Australian Aborigines are more typically totemic, whereas others like the Inuit are more typically animistic in their worldview.

Certain high church services and other musical events in liturgical churches ( such as the Roman Catholic Mass and the Lutheran Divine Service ) may be a cappella, a practice remaining from apostolic times.

Certain indigenous Dayak people ( such as the Kayan, Kenyah, Lun Bawang / Lun Dayeh, Punan Bah and Penan ) living on the island have been struggling for decades for their right to preserve their environment from loggers and transmigrant settlers and colonists.

Certain names of places, such as Streetsboro, OH, Greensboro, NC, and Maynesborough, NH reflect the historical use of Borough as a geographical scale in the United States.

Certain international trade laws, such as those on intellectual property, are also enforced in India.

Certain viruses such as Hepatitis B and human papilloma viruses have been found to cause cancer in humans.

* Certain kinds of memory leaks, in which a program fails to free memory occupied by objects that have actually become unreachable, which leads to memory exhaustion if such a behavior is repeated indefinitely.

Certain Jewish thinkers, such as Maimonides, believed that concubines are strictly reserved for kings, and thus that a commoner may not have a concubine ; indeed, such thinkers argued that commoners may not engage in any type of sexual relations outside of a marriage.

Certain Brezhnev appointees were kept, such as Viktor Chebrikov and Nikolai Savinkin.

Certain devices, such as avalanche diodes, deliberately make use of the effect.

Certain drawing methods or approaches, such as " doodling ," other informal kinds of drawing, and the surrealist method of " entopic graphomania ", in which dots are made at the sites of impurities in a blank sheet of paper, and lines are then made between the dots, may or may not be considered part of " drawing " as a " fine art ".

Certain non-standard regional and economic class-associated dialects do decline the article, either in regular speech or in slang-as in expressions such as " How do you like them apples?

Certain forms treat all knowledge as empirical, while some regard disciplines such as mathematics and logic as exceptions.

Certain other genera of symbiotic amoebae, such as Endamoeba, might prove to be synonyms of Entamoeba but this is still unclear.

Certain popular stories, such as the Prodigal Son and the Good Samaritan, are found only in this gospel.

Certain countries such as the United Kingdom are unaffected as they maintain more stringent gun control laws than those effectively set as a minimum by the European Union.

Certain initiates such as Alex Sanders and Raymond Buckland who brought his take on the Gardnerian tradition to the United States in 1964 started off their own major traditions allowing further expansion.

Certain European ritual traits such as the significance of the number 3, the importance of the head and of water sources such as springs remain in the archaeological record, but the differences in the votive offerings made at the Roman Baths ( Bath ), Bath, Somerset before and after the Roman conquest suggest that continuity was only partial.

Certain scholars and political leaders feel that these modern developments endanger nation states by taking power away from state governments and ceding it to international bodies such as the U. N. and the World Bank, argue that international law has evolved to a point where it exists separately from the mere consent of states, and discern a legislative and judicial process to international law that parallels such processes within domestic law.

Certain host symptoms, such as aching muscles and fever, are related to the production of IFNs during infection.

Certain fraternal organizations such as Freemasons have a custom of drinking toasts from specially shaped glasses known as cannons or firing glasses, which are slammed on the table making a sound like a gunshot – a firing glass then becomes a shot glass.

Certain types of smart glass allow users to control the amount of light ( and thereby heat ) transmission.

Certain types of flasks are supplied with a ground glass stopper in the, and others that are threaded neck and closes with an appropriate nut or automatic dispenser, these flasks are available in two standard shapes:

Certain kinds of pieces do not usually need glass when framed, including paintings done in acrylic or oil paint ( the former is usually waterproof ; the latter needs to breathe due to the decades-long drying process ), stained glass or tiles, and laminated posters.

Certain window types, such as double or triple glazed insulated windows with gas filled spaces and low emissivity ( low-E ) coatings, provide much better insulation than single-pane glass windows.

* Certain bacterial inhibitors-for gonococci, and buffered glycerol saline for enteric bacilli.

Certain Autocoder statements make provision for more parameters than may be contained in the operand ( columns 21 - 75 ) of a single line on the Autocoder coding sheet.

Certain Latin-Rite Catholic priests may receive a dispensation to be married before ordination, and all Eastern Catholic priests outside the United States are also permitted to be married, provided they are so before ordination.

Certain limitations, complications and special conventions may apply when alphabetical order is used:

Certain types of rules or customs may become law and regulatory legislation may be introduced to formalize or enforce the convention ( for example, laws that define on which side of the road vehicles must be driven ).

Certain self-limiting illnesses or minor injuries may not require further medical care past the first aid intervention.

Certain filter aids may be used to aid filtration.

Certain of his film related material and personal papers are contained in the Wesleyan University Cinema Archives to which scholars and media experts from around the world may have full access.

Certain elements of the game are reminiscent of rugby: for instance, the degree of force that defense may use to stop the attacker with the ball, together with the lack of protections and helmets.

Certain scholarship holds that the practices, emblems and architecture now commonly associated with the Hindu pantheon and Jainism may go back as far as Late Harappan times to the period 2000 – 1500 BCE.

Certain life insurance contracts accumulate cash values, which may be taken by the insured if the policy is surrendered or which may be borrowed against.

* Certain categories of person may be forbidden to strike ( airport personnel, health personnel, teachers, police or firemen, etc.

Certain foods such as soy may also suppress the proliferative effects of estrogen and are used as an alternative to hormone therapy.

Certain foods, such as dairy products, may be superheated to ensure pathogenic microbes are destroyed.

Certain scenarios or execution paths may be difficult to test, in which case the programmer may elect to test by inspection which involves a human inspecting the code on the relevant execution path, perhaps hand-executing the code.

: Certain firewall designs and other circumstances may force a server to interleave RTSP methods and stream data.

Certain Army and Air Defense Force personnel ( i. e., commandos and paratroops ) may have worn camouflage uniforms.