Some multiturn potentiometers have a linear resistive element with a slider which moves along it moved by a worm gear ; others have a helical resistive element and a wiper that turns through 10, 20, or more complete revolutions, moving along the helix as it rotates.

Some architects meet this requirement by housing two stairs in a " double helix " configuration where two stairs occupy the same floor space, intertwined.

Some nonstandard amino acids are not found in proteins.

Some proteins, such as those to be incorporated in membranes ( known as membrane proteins ), are transported into the " rough " endoplasmic reticulum ( ER ) during synthesis.

Some proteins that are made in the cytoplasm contain structural features that target them for transport into mitochondria or the nucleus.

Some mitochondrial proteins are made inside mitochondria and are coded for by mitochondrial DNA.

Some species of halobacteria have acidic proteins that resist the denaturing effects of salts.

Some of the proteins that make up myelin are myelin basic protein ( MBP ), myelin oligodendrocyte glycoprotein ( MOG ), and proteolipid protein ( PLP ).

Some, such as the SECIS element, are targets for proteins to bind.

Some enzymes act on other proteins to add or remove chemical groups in a process known as posttranslational modification.

Some proteins, such as insulin, are extracellular proteins that transmit a signal from the cell in which they were synthesized to other cells in distant tissues.

Some proteins even have the power to cleave themselves.

Some proteins and most eukaryotic polypeptide hormones are synthesized as a large precursor polypeptide known as polyprotein that require proteolytic cleavage into individual smaller polypeptide chains.

Some proteins that are hypothesized to be unstable due to intrinsically unstructured regions, are degraded in a ubiquitin-independent manner.

Some oncogenes can also stimulate the transcription of proteins that bind to MDM2 and inhibit its activity.

Some antibacterial drugs such as penicillin interfere with the production of peptidoglycan by binding to bacterial enzymes known as penicillin-binding proteins or transpeptidases.

Some such proteins are highly specific in their function, such as protein disulfide isomerase ; others are very general and can be of assistance to most globular proteins-the prokaryotic GroEL / GroES system and the homologous eukaryotic Heat shock proteins Hsp60 / Hsp10 system fall into this category.

Some proteins explicitly take advantage of the fact that they can become kinetically trapped in a relatively high-energy conformation due to folding kinetics.

# Some proteins involved in cell adhesion prevent tumor cells from dispersing, block loss of contact inhibition, and inhibit metastasis.

Some people define narcotics as substances that bind at opioid receptors ( cellular membrane proteins activated by substances like heroin or morphine ) while others refer to any illicit substance as a narcotic.

Some poisons are also toxins, usually referring to naturally produced substances, such as the bacterial proteins that cause tetanus and botulism.

Some proteins never fold in cells at all except with the assistance of chaperone molecules, which either isolate individual proteins so that their folding is not interrupted by interactions with other proteins or help to unfold misfolded proteins, giving them a second chance to refold properly.

Some approximants resemble vowels in acoustic and articulatory properties and the terms semivowel and glide are often used for these non-syllabic vowel-like segments.

Some volcanic features can resemble impact craters, and brecciated rocks are associated with other geological formations besides impact craters.

Some resemble the old U. S. conservation movement-whose modern expression is the Nature Conservancy, Audubon Society and National Geographic Society-American organizations with a worldwide influence.

Some advocates of free market ideologies have criticized mainstream conceptions of the free market, arguing that a truly free market would not resemble the modern-day capitalist economy.

Some former Soviet scientists said they were actually hampered by Fuchs's data, because Beria insisted that their first bomb (" Joe 1 ") should resemble the American plutonium bomb (" Fat Man ") as much as possible, even though the scientists had discovered a number of improvements and different designs for a more efficient weapon.

Some Marxists have formulated views that closely resemble syndicalism, and thus express more affinity with anarchist ideas.

Some types of embossing, such as that used to make the " cross on oval " design on early stamps of Switzerland, resemble a watermark in that the paper is thinner, but can be distinguished by having sharper edges than is usual for a normal watermark.

Some of its rules resemble those of Plotting ( known in some territories as Flipull ), but unlike Plotting, Zoop runs in real time.

Some are straight with a " Joint " ( Sandblasted top part of stem, usually about 1 inch long, and all the way around, tapered or cone shaped, so the tapered, or " cone shaped " bowl will fit in ) some are bent to resemble a crane.

Some auxiliary groups use uniforms that resemble gymnastics outfits: Often, these uniforms are themed, drawing inspiration from the music.

Some papilionid caterpillars resemble bird dropping in their early instars.

Some epiphytic orchids ( family Orchidaceae ) form above-ground storage organs called pseudobulbs, that superficially resemble bulbs.

Some may be smooth and relatively featureless, except for growth lines, and resemble that of the modern Nautilus.

Some remedies for market failure can resemble other market failures.

Some species of Sunbirds of Africa, southern and southeastern Asia, and Australia resemble hummingbirds in appearance and behavior, as do perhaps also the honeyeaters of Australia and Pacific islands.

Some of these may resemble known marks of merchants from the city of Bristol, but this is not proof that they originated there.

Some signal processing researchers negate the random walk hypothesis that stock market prices resemble Wiener processes, because the statistical moments of such processes and real stock data vary significantly with respect window size and similarity measure.

Some are so different that they do not even remotely resemble the original festival despite sharing the same name and date.

Some resemble video installations, particularly large scale works involving projections and live video capture.

Some aspects of the mummy portraits, especially their frontal perspective and their concentration on key facial features, strongly resemble later icon painting.

Some scenario games feature an overall theme, such as D-Day, in which the participants may wear period uniforms or wield markers that have been modified to resemble period weaponry.

Some local morning newscasts, which formerly had both softer " morning " musical and graphical packages and lighter news, now resemble their later-day counterparts with hard news coverage from overnight events.

Some of these echo the existing architecture of Old Aberdeen, such as the Fraser Noble Building with its distinctive concrete crown designed to resemble the one adorning King's College.

Some non-lethal weapons as the Kubotan have also been built to resemble everyday objects, such as keychains.