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Some diving instructors continue to teach single demand valve buddy-breathing as an obsolete but still useful technique ; then they show the method that has superseded it, since availability of two second stages per diver is now assumed in recreational scuba.
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Some and diving
Some blue whales in the North Atlantic and North Pacific raise their tail fluke when diving.
Some are deeper, e. g. 6m for the diving pit at Sheffield, England.
Some tourist resorts now offer a surface-supplied diving arrangement, trademarked as Snuba, as an introduction to diving for the inexperienced.
Some diver training organizations and groups of divers teach techniques, such as DIR diving for configuring diving equipment.
Some of these include swimming, waterskiing, boating, surfing and diving.
Some examples include: space suits, air conditioned clothing, armor, diving suits, swimsuits, bee-keeper gear, motorcycle leathers, high-visibility clothing, and other pieces of protective clothing.
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 dive locations even provide the opportunity to combine diving and bird watching, in particular the Pinnacles, where Guillemots can be found fishing at safety stop depth.
* Subfamily: Aythyinae, diving ducks ( Some 15 species of diving ducks, of worldwide distribution, in 2 – 4 genera ; The 1986 morphological analysis suggested that the probably extinct Pink-headed Duck of India, previously treated separately in Rhodonessa, should be placed in Netta, but this has been questioned.
Some studies published on the phylogeny of the petrels suggests that the diving petrels are actually members of the family Procellariidae, and some taxonomic works treat them as such.
Some prefer to use a full face diving mask to essentially eliminate any contact with the cold water.
Some say that technical diving is any type of scuba diving that is considered higher risk than conventional recreational diving.
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 dry suits are rated for hazardous-environment diving, and when combined with a full-face helmet can completely isolate and protect the diver from hazardous environments such as sewage pits and chemical storage tanks.
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 sport diving clubs include the word " Frogmen " in their names.
Some frogmen use an ordinary diving mask ; some use a fullface mask, which is less easily lost underwater.
Some and instructors
Some taekwondo instructors also incorporate the use of pressure points, known as jiapsul, as well as grabbing self-defense techniques borrowed from other martial arts, such as hapkido and judo.
Some tatting instructors recommend using a tatting needle and a crochet hook to work cro-tatting patterns.
Some instructors encourage sipping water during the class ; most recommend not eating heavy food 3 hours before doing hot yoga.
Some burlesquers of the past have become instructors and mentors to New Burlesque performers such as Velvet Hammer, The World Famous Pontani Sisters.
Some instructors don't mind at all ( especially with younger or inexperienced models ), while others, including the Register of Artists ' Models ( RAM ) in the United Kingdom, this is cause for termination.
" Some want more dialogue between instructors and students.
Some instructors are also students, as the college allows instructors to take a tuition free course for every course they teach ( in addition to salary and benefits ).
Some top instructors who work with professional golfers have become quite well known in their own right over the years, including Harvey Penick, Jack Grout, Dick Harmon, Jim McLean, David Leadbetter, Butch Harmon, Hank Haney, Richard Trammel, Ben Doyle, Mike Bender Sean Foley, Mike Bennett and Andy Plummer.
Some famous golfers have been tightly bound with their instructor, such as Jack Nicklaus with Jack Grout, while in other cases golfers have made high-profile switches from one instructor to another, such as Tiger Woods moving from Butch Harmon to various other instructors.
Some Wadō-ryū instructors and schools still teach this kata.
Some corps managers, directors and instructors walked out of the 1969 VFW national rules committee meeting after their requests for major rules changes were not approved, and some of the protesting participants then formed the by-invitation-only ( and short-lived ) Midwest Combine in 1971.
Some Chinese martial arts instructors focus more on their chin na techniques than others.
Some Western instructors teach panantukan as a separate martial art, but in the Philippines it is accepted as a part of eskrima.
Some karate instructors consider the previously learned forms of the system, Naihanchi and Wansu, to be preparatory and basic training forms, culminating in the kata Chinto.
Some drill instructors choose to do a second tour of duty on the drill field.
Some flight instructors believe touch-and-goes should not be so heavily used, if at all, with student pilots.
Some consider this to be a loophole which allows unqualified instructors to provide public classes.
Some ranges offering gun rental also provide instructors at little to no cost as part of the rental fee.
Some of the major locations and the senior instructors include:
Some observers are professional instructors or hold the RoSPA Diploma in Advanced Instruction.
Some instructors specifically seek to avoid the sort of models preferred by fashion photographers, seeking more " realistic " examples and to avoid any implication of sexual objectification.
Some polo instructors recommend standing in the saddle for all strokes.
Some clubs use a system of differing colours to differentiate students from instructors.
Some and continue
Some people, however, can continue to lose potassium while on an ACE inhibitor.
Some cultural features and customs of Hinduism continue to exist within the current society.
Some dissenting groups continue to solicit support among current members of the church.
Uston rated almost one half of the Channel F games as " high in interest " and called that " an impressive proportion " and further noted that " Some of the Channel F cartridges are timeless ; no matter what technological developments occur, they will continue to be of interest.
Some even continue to this day to remain a challenge for mathematicians.
Some alternative treatments that have been proven ineffective continue to be marketed and promoted.
Some days after that meeting, the delegation was approached by three French agents ( at first identified as " X ", " Y ", and " Z " in published papers, leading the controversy to be called the " XYZ Affair ") who demanded substantial bribes from the commissioners before negotiations could continue.
Some of the most notable feminist science fiction works have illustrated these themes using utopias to explore a society in which gender differences or gender power imbalances do not exist, or dystopias to explore worlds in which gender inequalities are intensified, thus asserting a need for feminist work to continue.
Some patients who opt for surgical intervention continue to experience pain after surgery.
Some guitarists incorporate a Latin jazz influence, acid jazz-style dance club music uses samples from Wes Montgomery, and guitarists such as Bill Frisell continue to defy categorization.
Some Alaska Natives continue to resent the Alaska Federation of Natives ' lack of legitimacy to act on their behalf.
Some cultures, historically or currently, continue to use breast milk to feed their children until they are seven years old.
Some scientists considered paraphyletic groups to be monophyletic ( as they shared a common ancestor ), where others insisted that monophyletic should continue to refer only to holophyletic groups.
Some contemporary communist parties continue to regard Marxism – Leninism as their basic ideology, although some have modified it to adapt to new and local political circumstances.
Some restrictions continue on freedom of expression.
Some train operating companies continue to use the former British Rail Rail Alphabet lettering to varying degrees in station signage, although its use is no longer universal ; however it remains compulsory ( under Railway Group Standards ) for safety signage in trackside areas and is still common ( although not universal ) on rolling stock.
Some gay activists, however, continue to disapprove of outing as a political tactic, arguing that even anti-gay conservatives have a right to personal privacy which should be respected.
Some breakdown can be expected to continue due to CFCs used by nations which have not banned them, and due to gases which are already in the stratosphere.
Some Sufi Orders, notably the Bektashis and the Universal Sufi movement, continue to espouse panentheistic beliefs.
Some continue to use even earlier editions, but without authorisation.
" Some commentators, recommending a hard stand against the practice, have found therapy inconsistent with a psychologist's ethical duties because " it is more ethical to let a client continue to struggle honestly with her or his identity than to collude, even peripherally, with a practice that is discriminatory, oppressive, and ultimately ineffective in its own stated ends.
Some of the most notable feminist science fiction works have illustrated these themes using utopias to explore a society in which gender differences or gender power imbalances do not exist, or dystopias to explore worlds in which gender inequalities are intensified, thus asserting a need for feminist work to continue.
Some of the more radical elements, including Al-Shabaab, regrouped to continue their insurgency against the TFG and oppose the Ethiopian military's presence in Somalia.
Some of the more radical elements, including Al-Shabaab, regrouped to continue their insurgency against the TFG and oppose the Ethiopian military's presence in Somalia.
Some early single hose scuba sets used full-face masks instead of a mouthpiece, such as those made by Desco and Scott Aviation ( who continue to make breathing units of this configuration for use by firefighters ).
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