* 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 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 kinds of bubens are equipped with clanking metal rings, plates, cymbals, or little bells.

Certain drawing methods or approaches, such as " doodling " and other informal kinds of drawing such as drawing in the fog a shower leaves on a bathroom mirror, or 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 as part of " drawing " as a " fine art.

Certain kinds of instant dim sum have come onto the market in Hong Kong, Mainland China, Taiwan and Singapore.

Certain kinds of membrane proteins are involved in the process of fusing two bilayers together.

* Certain kinds of factories, such as steel mill, sugar mill, and cotton mill

Certain kinds of trauma that have powerful emotional effects are not given much notice yet can have devastating effects on psychosocial functioning.

Certain kinds of nuts were also available, and they were thrown at festivals much as sweets are today.

Certain kinds of aviation experience may be substituted for these requirements.

Certain species of Diospyros are the sources of most kinds of ebony wood, and not all species bear an edible fruit.

Certain kinds of fish, such as the Pacific whiting, cannot form firm surimi without additives such as egg white or potato starch.

Certain receptors are sensitive to certain types of stimuli ( for example, different mechanoreceptors respond best to different kinds of touch stimuli, like sharp or blunt objects ).

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 kinds of questions were " off-limits ", such as name, age, occupation, and income.

Certain kinds of cura were assigned certain classes or types of troops ; for example, wall sentries were chosen only from Velites.

Certain kinds of illness, including tuberculosis and pneumonia, or symptoms such as sneezing, coughing, vomiting, and loss of consciousness, are believed by some Somalis to result from spirit possession, namely, the Ifrit of the spirit world.

Certain kinds of A / D converters known as delta-sigma converters produce disproportionately more quantization noise in the upper portion of their output spectrum.

Certain kinds of performance, therefore, cannot be assigned, because they create a unique relationship between the parties to the contract.

Certain kinds of evidence, such as documentary evidence, are subject to the requirement that the offeror provide the trial judge with a certain amount of evidence ( which need not be much and it need not be very strong ) suggesting that the offered item of tangible evidence ( e. g., a document, a gun ) is what the offeror claims it is.

Certain families can work certain kinds of magic.

Certain Indonesian dishes such as gado-gado, karedok, rujak, asinan, bubur ayam and certain kinds of soto were known to require certain type of krupuk for toppings.

Certain kinds of leukemias and lymphomas, including Mantle cell lymphoma, T-ALL, atypical B cell chronic lymphocytic leukemia, and T-PLL are also associated with ATM defects.

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 elements that are normally toxic are, for certain organisms or under certain conditions, beneficial.

Certain types of sea slugs, such as the nudibranch aeolids, are known to undergo kleptocnidae ( in addition to kleptoplasty ), whereby the organisms store nematocysts of digested prey at the tips of their cerata.

Certain exotic organisms do not seem to be subject to aging and can live indefinitely.

Certain genes are chosen as reporters because the characteristics they confer on organisms expressing them are easily identified and measured, or because they are selectable markers.

Certain species of pterosaurs were filter feeders, with many thin bristle-like teeth to sift small organisms out of the water, similar to the lamellae of flamingoes.

Certain species of Blepharisma have served as model organisms for scientific research.

Certain German prepositions require the dative: aus, außer, bei, mit, nach, seit, von, zu, and gegenüber.

Certain lesions require Long-term video-EEG monitoring with the use of intracranial electrodes if noninvasive testing was inadequate to identify the epileptic focus or distinguish the surgical target from normal brain tissue and function.

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

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

Certain applications may require multiple IP addresses on the server.

Certain cell types such as fat and muscle cells require insulin to absorb glucose.

Certain schools require their students to wear a tie ; especially many schools run by Christian missionaries.

Certain surgeries for cerebral aneurysms or aortic arch defects require that blood circulation be stopped while repairs are performed.

Certain vesicle-trafficking steps require the transportation of a vesicle over a moderately small distance.

Certain vehicles — like Citroëns and Ferraris — require specialist care due to their unique design.

Certain spells require expensive or rare elements to work properly, while the majority are merely spoken.

Certain performers or production companies would require that a kinescope be made of every television program.

Certain conditions require tracheal intubation ( insertion of a tube ) to secure the patency ( openness ) of the airway.

Certain areas on the board ( where cities existed historically ) have a square printed in them to designate them as city sites, which require five population tokens to produce a city — non city sites require twelve such tokens.

Certain scenes or even types of filmmaking, however, may require the use of zooms for speed or ease of use, as well as shots involving a zoom move.

Certain production and technical processes and treatments in factories, laboratories, hospitals, and other facilities require specific relative humidity levels to be maintained using humidifiers, dehumidifiers and associated control systems.

Certain character classes require less experience than others to achieve a new level.

Certain applications will not require that all of these conditions are met, but these five requirements are the most ideal.

Certain plants including the genetic model organism Arabidopsis thaliana naturally self pollinates, which makes it quite easy to create inbred strains in the laboratory ( other plants, including important genetic models such as Maize require transfer of pollen from one flower to another ).

Certain flags require more than 1 player for capture.

Certain applications require a specific type of dive suit ; long dives into deep, cold water normally require a hot water suit or drysuit, whilst diving into potentially contaminated environments requires a drysuit, dryhood, and drygloves at a minimum, thereby keeping the diver completely isolated from the diving environment.

Certain human behaviours, especially actions like the fingering in musical performances, are very complex and require many interconnected neural networks where information can be transmitted across multiple brain regions.