Some hymens are so strongly developed that they cannot be torn without considerable pain to the girl and marked loss of blood.

Some subfields of R have nontrivial field automorphisms, which however do not extend to all of R ( because they cannot preserve the property of a number having a square root in R ).

Some early scientists such as Georg Ernst Stahl ( 1659-1734 ) and Francisque Bouillier ( 1813 – 1899 ) had supported a form of animism which life and mind, the directive principle in evolution and growth, holding that all cannot be traced back to chemical and mechanical processes, but that there is a directive force which guides energy without altering its amount.

Some even depict it as a horned, dragon-like creature with a serpent-headed tail and small, round ears, while others have both " necks " of equal size so that it cannot be determined which is the rear head.

* Some curves that seem simple, such as the circle, cannot be described exactly by a Bézier or piecewise Bézier curve ; though a four-piece cubic Bézier curve can approximate a circle ( see Bézier spline ), with a maximum radial error of less than one part in a thousand, when each inner control point ( or offline point ) is the distance horizontally or vertically from an outer control point on a unit circle.

Some constitutions, especially written constitutions, also act as limiters of state power, by establishing lines which a state's rulers cannot cross, such as fundamental rights.

Some sets are infinite ; these sets have more than n elements for any integer n. For example, the set of natural numbers, denotable by, has infinitely many elements, and we cannot use any normal number to give its size.

Some of the greatest screen performances come from dramas, as there is ample opportunity for actors to stretch into a role that most other genres cannot afford.

Some constructions of smooth manifold theory, such as the existence of tangent bundles, can be done in the topological setting with much more work, and others cannot.

Some scholars have argued that since the author of that letter has not identified himself as an apostle and actually refers to the apostles as a third party, he cannot be identified with the Jude who is listed as one of the Twelve.

Some environmentalists are also green anarchists, arguing that true environmental change cannot occur under the present economic model.

* Some numbers ( e. g., 1 / 3 and 0. 1 ) cannot be represented exactly in binary floating-point no matter what the precision.

* Some processes propagate faster than c, but cannot carry information ( see examples in the sections immediately following ).

" Some forms of self-inflicted punishment are self-denied pleasure, or not allowing oneself to enjoy opportunities or benefits due to guilty feelings that cannot be resolved through compensation.

Some systems cannot be reduced to triangular form, yet still have at least one valid solution: for example, if y had not occurred in and after the first step above, the algorithm would have been unable to reduce the system to triangular form.

Some Graves ' disease patients, however, that cannot tolerate medicines for one reason or another, patients that are allergic to iodine, or patients that refuse radioiodine may opt for surgical intervention.

Some lasers are pulsed simply because they cannot be run in continuous mode.

Some metals form a barrier layer of oxide on their surface which cannot be penetrated by further oxygen molecules and thus retain their shiny appearance and good conductivity for many decades ( like aluminium, magnesium, some steels, and titanium ).

Some people live in space habitats, and the “ quaddies ” of Falling Free cannot live anywhere else.

Some cognitivists argue that some expressions like " courageous " have both a factual as well as a normative component which cannot be distinguished by analysis.

Some fatty acids, but not all, are essential in the diet: they cannot be synthesized in the body.

Some are produced by the human body with adequate precursors ( glutathione, Vitamin C ), and those the body cannot produce may only be obtained in the diet via direct sources ( Vitamin C in humans, Vitamin A, Vitamin K ) or produced by the body from other compounds ( Beta-carotene converted to Vitamin A by the body, Vitamin D synthesized from cholesterol by sunlight ).

Some cannot be present in certain areas of free radical development ( Vitamin A is fat-soluble and protects fat areas, Vitamin C is water soluble and protects those areas ).

Some pairs of processes cannot be connected by cause-and-effect relations, and they are said to be spatially separated.

Some versions of the mythology state that good and bad deeds neutralize each other and the soul therefore is born in either a heaven or a hell, but not both, whereas according to another school of thought, the good and bad deeds don't cancel out each other.

Some anesthetists will use sodium citrate ( to neutralize the stomach's low pH ), and metoclopramide or domperidone ( pro-kinetic agents, to empty the stomach ).

Some are equipped with a charcoal lining to neutralize some agents.

Some distribution costs are kept up by competitive pressure, some by the fact that the customers have come to expect certain niceties and flourishes.

Some school systems provide written instructions to principals and teachers designating when certain information is to be recorded on cumulative record forms and explaining how the information is to be summarized and used.

Some salamanders in the genus Aneides and certain Plethodontids climb trees and have long limbs, large toepads and prehensile tails.

Some researchers have speculated that this minority of Haplogroup C3 carriers among the Ainu may reflect a certain degree of unidirectional genetic influence from the Nivkhs, a traditionally nomadic people of northern Sakhalin and the adjacent mainland, with whom the Ainu have long-standing cultural interactions.

Some information is known about the family origins of Amasis: his mother was a certain Tashereniset as a bust statue of this lady, which is today located in the British Museum, shows.

Some Nasheed singers avoid instruments in the background due to the opinion of certain scholars that their use is prohibited.

Some legitimate customers had problems with this though if they made certain changes to their own phone, such as replacing the battery and / or antenna.

Some battle-survivors have nightmares about the conditions they encountered, or abnormal reactions to certain sights or sounds.

Some of its powers may, according to its articles, be exercised by directors, certain other powers may be reserved for the shareholders in general meeting.

Some printer technologies don't work with certain types of physical media, such as carbon paper or transparencies.

Some collectors focus on coins of a certain nation or historic period.

Some collectors are completists and seek an example of every type of coin within a certain category.

Some, like Henry Sidgwick, argue that a certain degree of egoism promotes the general welfare of society for two reasons: because individuals know how to please themselves best, and because if everyone were an austere altruist then general welfare would inevitably decrease.

Some critical observers consider that Uribe's policies, while admittedly reducing crime and guerrilla activity, might be too slanted in favor of a military solution to Colombia's internal war, neglecting grave social and human rights concerns to a certain extent.

Some people speak of cultural coercion when the fear of falling out with the group may force people into wearing a certain style of dress, publicly reciting a creed or a pledge of allegiance which they find ethically reprehensible or starting to smoke when they would have preferred not to etc.

Some studies have shown that ingredients in curry may help to prevent certain diseases, including colon cancer and Alzheimer's disease.

Some systems also include a hidden flag to make certain files invisible ; this flag is used by the computer system to hide essential system files that users should not alter.

Some error-correcting codes are based on special checksums that not only detect common errors but also allow the original data to be recovered in certain cases.

Some cells are specific to spatial information, certain stimuli ( smells, etc.

Some groups advocate certain prepared foods or special menus, while others train dieters to make healthy choices from restaurant menus and while grocery-shopping and cooking.

Some players use the more nimble tips of the fingers to play fast-moving solo passages or to pluck lightly for quiet tunes. The use of amplification allows the player to have more control over the tone of the instrument, because amplifiers have equalization controls that allow the bassist to accentuate certain frequencies ( often the bass frequencies ) while de-accentuating some frequencies ( often the high frequencies, so that there is less finger noise ).

Some jurisdictions classify as violent certain property crimes involving a strong likelihood of psychological trauma to the property owner ; for example, Virginia treats both common-law burglary ( the breaking and entering of a dwelling house at night with the intent to commit larceny, assault and battery, or any felony therein ) and statutory burglary ( breaking and entering with further criminal intent but without the dwelling-house or time elements, such that the definition applies to break-ins at any time and of businesses as well as of dwelling houses ) as felonies.

Some types of recessive gene disorders confer an advantage in certain environments when only one copy of the gene is present.

Some newspapers carry " gossip columns " which detail the social and personal lives of celebrities or of élite members of certain communities.

Some dietary or religious customs forbid the use of gelatin from certain animal sources, and medical issues may limit or prevent its consumption by certain people.