Certain elements have no stable isotopes and are composed only of radioactive isotopes: specifically the elements without any stable isotopes are technetium ( atomic number 43 ), promethium ( atomic number 61 ), and all observed elements with atomic numbers greater than 82.

Certain questions, however, were discussed and decided in full assembly ; sometimes, too, the estates nominated commissaries in equal numbers for each order.

Certain characteristics of older ocean liners made them unsuitable for cruising duties, such as high fuel consumption, deep draught preventing them from entering shallow ports, and cabins ( often windowless ) designed to maximize passenger numbers rather than comfort.

Certain characteristics of older ocean liners made them unsuitable for cruising, such as high fuel consumption, deep draught preventing them from entering shallow ports, and cabins ( often windowless ) designed to maximize passenger numbers rather than comfort.

Certain quantities, like milk, can be divided in any proportion whatsoever ; others, such as horses, cannot — only whole numbers will do.

Certain numbers of Mk. 1 were modified latter in the war and designated Mk. 1 *.

Certain cases could be exempted from such definitions unless they used live animals in substantial numbers.

This was published in his article Certain composite Mersenne's numbers in 1916.

Certain species of fish and several types of cleaner shrimp may assist the fish in large numbers and even go inside the mouth ( and then to the gill cavity ) without being eaten.

Certain numbers were considered sacred, holy, or magical by the ancient Egyptians, particularly 2, 3, 4, 7, and their multiples and sums.

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 sequences of letters by a single author develop more fully a particular subject, such as letters 11 – 14 from Usbek to Mirza on the Troglodytes, Letters 109 – 118 ( 113 – 122 ) from Usbek to Rhedi on demography, Letters 128 – 132 ( 134 – 138 ) from Rica on his visit to the library at Saint-Victor.

Willard Thorp, in his new book, American Writing In The Twentieth Century, observes, quite validly it seems: `` Certain subjects are conspicuously absent or have been only lightly touched.

Certain other deductions are not allowed in determining Adjusted Gross Income.

Certain pianistic traits are common to all five Schnabelian renditions, most notably the `` Schnabel trill '' ( which differs from the conventional trill in that the two notes are struck simultaneously ).

Certain other properties of small particles, in addition to those already mentioned in connection with penetration of the respiratory tract, are noteworthy in defense considerations.

Certain badly disillusioned market critics are often apt to feel that there is something somehow unfair, dirty, or even thoroughly criminal about this interplay of competitive forces.

Certain stones, when examined in thin sections by transmitted light, show a diffraction spectrum due to the extreme delicacy of the successive bands, whence they are termed rainbow agates.

Certain object types, including ACIS solids and regions, are not documented.

Certain natural substances are reputed to have anxiolytic properties, including the following:

Certain other state agencies enjoy considerable operational independence and autonomy ; they include the electrical power, the nationalized commercial banks ( which are open to competition from private banks ), and the social security agency.

Certain people are known even to people unfamiliar with the area in which they excelled.

Certain sub-castes are shunned more than others.

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 forms of the gene are associated with a mild form of epilepsy.

Certain aspects of XP have changed since the book Extreme Programming Refactored ( 2003 ) was published ; in particular, XP now accommodates modifications to the practices as long as the required objectives are still met.