Some divers may find pike easier in a flip than tuck, and most find straight the easiest in a front / back dive, although it is still rated the most difficult because of the risk of overrotation.

' I am she that is the natural mother of all things, mistress and governess of all the elements, the initial progeny of worlds, chief of powers divine, Queen of heaven, the principal of the Gods celestial, the light of the goddesses: at my will the planets of the air, the wholesome winds of the Seas, and the silences of hell be disposed ; my name, my divinity is adored throughout all the world in divers manners, in variable customs and in many names, [...] Some call me Juno, others Bellona of the Battles, and still others Hecate.

Some divers will store it in a BC pocket, but this reduces availability in an emergency.

Some divers instead connect their backup regulator to a smaller " pony cylinder " for extra safety, and there are also emergency systems which mount a simple regulator directly to the top of a small cylinder.

Some diver training organizations and groups of divers teach techniques, such as DIR diving for configuring diving equipment.

Some divers suffer from hyperbaric arthralgia during descent.

The most impressive diving exhibited by shearwaters is found in the Short-tailed Shearwater, which has been recorded diving below 70 m. Some albatross species are also capable of some limited diving, with Light-mantled Sooty Albatrosses holding the record at 12 m. Of all the wing-propelled pursuit divers, the most efficient in the air are the albatrosses, and it is no coincidence that they are the poorest divers.

Some plunge divers ( as well as some surface feeders ) are dependent on dolphins and tuna to push shoaling fish up towards the surface.

Some divers collect aluminum cans, which they can then sell for a small profit.

< center > Some remoras, such as this Echeneis naucrates, may attach themselves to scuba divers.

Some consider a dry suit mandatory ; however, a thick wetsuit may be sufficient for hardier divers.

Some precautions and skills for night diving include: avoiding shining your light in other divers ' eyes, to be aware of and use surface light signals for bearings, or similarly use a surface marker buoy with an attached strobe or cyalume stick.

Some commercial divers order their suits without boots and install rubber work boots such as those used by miners or firefighters.

Some divers ensure that the bubble remains at the top of their body by using the buoyancy compensator to counteract any excess weighting, keeping only the minimum gas necessary to avoid squeeze inside the drysuit.

Some British armed forces divers used bulky thick diving suits called Sladen suits ; one version of it had a flip-up single faceplate for both eyes to let the user get binoculars to his eyes when on the surface.

Some home made rebreather were used by cave divers to penetrate cave sumps.

Some rebreather divers prefer not to carry enough bailout for a safe ascent breathing open circuit, but instead rely on the rebreather, believing that an irrecoverable rebreather failure is very unlikely.

Some countries ' frogman organizations include a translation of the word " frogman " in their official names, e. g. Denmark's Frømandskorpset and Norway's Froskemanskorpset ; others call themselves " combat divers " or similar.

Some especially hardy midwestern and north central SCUBA divers go spearfishing under the ice in the winter when water clarity is at its best.

Some divers wear a dive skin under a wetsuit, which allows easier donning and ( for those who experience skin problems from neoprene ) provides additional comfort.

Some divers can put on their own helmet, but it is usual for the topside crew to do most of the locking on to the neck dam, and check that there are no obvious faults with the seal.

Some divers prefer negatively buoyant fins.

Some of the first training started in 1952 at the Scripps Institution of Oceanography where Andy Rechnitzer, Bob Dill and Connie Limbaugh taught the first scuba courses in the United States, then in 1953 Trevor Hampton created the first British diving school, the British Underwater Centre and in 1954 when Los Angeles County created an Underwater Instructor Certification Course based on the training that they received from the scientific divers of the Scripps Institution of Oceanography.

Some 45 frequencies are assigned for use primarily by dominant Class 1, -- A or Class 1, -- B clear-channel stations, designed to operate with adequate power and to provide service -- both groundwave and ( at night ) skywave -- over large areas and at great distances, being protected against interference to the degree necessary to achieve this objective.

Some cases in evidence of the use of roleplaying for analysis may help explain the procedure.

Some of Thurber's curative methods involve strong potions of mixed metaphor, malapropism, and gobbledygook and are recommended for use only in extreme cases.

Some popular designs use the following types of ANOVA:

Some sources mention the use of an abacus called a nepohualtzintzin in ancient Mayan culture.

Some adaptations of the Latin alphabet are augmented with ligatures, such as æ in Old English and Icelandic and Ȣ in Algonquian ; by borrowings from other alphabets, such as the thorn þ in Old English and Icelandic, which came from the Futhark runes ; and by modifying existing letters, such as the eth ð of Old English and Icelandic, which is a modified d. Other alphabets only use a subset of the Latin alphabet, such as Hawaiian, and Italian, which uses the letters j, k, x, y and w only in foreign words.

Some amateur astronomers use home-made radio telescopes, while others use radio telescopes that were originally built for astronomy research but have since been made available for use by amateurs.

Some may suggest that it is probably advisable to use mouthwash at least an hour after brushing with toothpaste when the toothpaste contains sodium lauryl sulfate, since the anionic compounds in the SLS toothpaste can deactivate cationic agents present in the mouthrinse.

Some results in constructive set theory use the axiom of countable choice or the axiom of dependent choice, which do not imply the law of the excluded middle in constructive set theory.

Some abugidas use a special symbol to suppress the inherent vowel so that the consonant alone can be properly represented.

Some modern descendants of this culture often choose to use the term " Ancestral Pueblo " peoples.

Some of the Australians wanted to use Bodyline in retaliation, but Woodfull flatly refused.

Some hard science fiction stories use small ( possibly nano-sized ) paired wormholes dedicated to communication by means of a laser which traverses the wormhole.

( Some newer protocols, such as Kerberos and Active Directory use DNS SRV records to identify services by name, which is much closer to the AppleTalk model.

Some consider such use of the term " incorrect.

Some natural tolerance to habitual use of ayahuasca ( roughly once weekly ) may develop through upregulation of the serotonergic system.

Some reports and scientific studies affirm that ritualized use of ayahuasca may improve mental and physical health.

Some Protestant US military chaplains carry the Roman Rite version of the Anointing of the Sick with them for use if called upon to assist wounded or dying soldiers who are Catholics.

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

Some guns were suitable for dual-role anti-aircraft and field ( anti-tank ) use.

Some studies have found decreased life expectancy associated with the use of antipsychotics, and argued that more studies are needed.

Some doubts have been raised about the long-term effectiveness of antipsychotics for schizophrenia, in part because two large international World Health Organization studies found individuals diagnosed with schizophrenia tend to have better long-term outcomes in developing countries ( where there is lower availability and use of antipsychotics and mental health problems are treated with more informal, community-led methods only ) than in developed countries.

Some critics have also analyzed the use of alleged front organizations and conflicted patient " advocacy " groups funded by pharmaceutical companies that seek to set the mental health agenda, including the use of the law to force people to take antipsychotics against their will, often justified by claims about risk of violence.