In the more primitive areas, where the capacity to absorb and utilize external assistance is limited, some activities may be of such obvious priority that we may decide to support them before a well worked out program is available.

Both Sudan and Ackermann are credited with discovering total computable functions ( termed simply " recursive " in some references ) that are not primitive recursive.

Even earlier examples of this sentiment may be found in Wild Talents by author Charles Fort where he makes the statement: "... a performance that may some day be considered understandable, but that, in these primitive times, so transcends what is said to be the known that it is what I mean by magic.

Early crochet hooks ranged from primitive bent needles in a cork handle, used by poor Irish lace workers, to expensively crafted silver, brass, steel, ivory and bone hooks set into a variety of handles, some of which were better designed to show off a lady's hands than they were to work with thread.

However, there are also some psychological differences in regard to how problems are dealt with and emotional perceptions and reactions that may relate to hormones and the successful characteristics of each gender during longstanding roles in past primitive lifestyles.

* Axiomatic proof: Proofs are deductive derivations of propositions from primitive premises that are ‘ true ’ in some sense.

Believed to have been composed in the wilds of Macedonia, Bacchae also happens to dramatize a primitive side to Greek religion and some modern scholars have therefore interpreted this particular play biographically as:

" Such definitions depend upon "( cultural ) processes rather than abstract musical types ...", upon " continuity and oral transmission ... seen as characterizing one side of a cultural dichotomy, the other side of which is found not only in the lower layers of feudal, capitalist and some oriental societies but also in ' primitive ' societies and in parts of ' popular cultures '.

Being one of the first film hyphenates ( film director, editor and engineer ) Porter also invented and utilized some of the very first ( albeit primitive ) special effects such as double exposures, miniatures and split-screens.

Most fighters up to this point had one engine but a number of twin engined fighters were built, however they were found defenseless against single engine fighters and were relegated to other tasks, some becoming night fighters, fitted with very primitive radar sets.

In some primitive way, early 4GL's were included in the Informatics MARK-IV ( 1967 ) product and Sperry's MAPPER ( 1969 internal use, 1979 release ).

Although some recent writers suggest that Homo georgicus was the first and most primitive hominid ever to live outside Africa, many scientists consider H. georgicus to be an early and primitive member of the H. erectus species.

" Hence although men had become less forebearing, and although natural pity had already undergone some alteration, this period of the development of human faculties, maintaining a middle position between the indolence of our primitive state and the petulant activity of our egocentrism, must have been the happiest and most durable epoch.

Viking navigational techniques are not well understood, but historians postulate that the Vikings probably had some sort of primitive astrolabe and used the stars to plot their course.

Like comets, chondritic asteroids are some of the oldest and most primitive materials in the solar system.

The first mirrors used by people were most likely pools of dark, still water, or water collected in a primitive vessel of some sort.

In the primitive jawless fish, and some teleosts, there is only one ovary, formed by the fusion of the paired organs in the embryo.

All programming languages have some primitive building blocks for the description of data and the processes or transformations applied to them ( like the addition of two numbers or the selection of an item from a collection ).

Daegling notes that in 1967, movie and television special effects were primitive compared to the more sophisticated effects in later decades, and allows that if the Patterson film depicts a man in a suit that " it is not unreasonable to suggest that it is better than some of the tackier monster outfits that got thrown together for television at that time.

* Patch, a 3-D Bézier curve used in computer graphics, or a primitive in some 3-D software packages

The ancient gods with tails of animals who stood for primitive bodily insticts, were considered to protect the flocks and herds, and some of them survived in the cult of Dionysos ( Satyrs and Seilinoi ) and Pan ( the goat-god ).

In fact, it is difficult to devise a computable function that is not primitive recursive, although some are known ( see the section on Limitations below ).

Other interpreters believe these references do not support the concept of transfer of the seventh-day rest, and some add that they do not sufficiently prove that Sunday observance was an established practice in the primitive New Testament church.

The idea that some languages were naturally superior to others and that the use of primitive languages maintained their speakers in intellectual poverty was widespread in the early 20th century.

They are also produced in the Leydig's organ which is only found in cartilaginous fishes, although some do not possess it.

However, the situation is not always so simple ; in cartilaginous fish and some amphibians, there is also a shorter duct, similar to the amniote ureter, which drains the posterior ( metanephric ) parts of the kidney, and joins with the archinephric duct at the bladder or cloaca.

Venom can also be found in some fish, such as the cartilaginous fishes – stingrays, sharks, and chimaeras – and the teleost fishes including monognathus eels, catfishes, stonefishes and waspfishes, scorpionfishes and lionfishes, gurnards, rabbitfishes, surgeonfishes, scats, stargazers, weever, swarmfish.

In cartilaginous fish, this duct actually opens onto the top of the head, and in some teleosts, it is simply blind-ending.

Normally, these are paired structures, but in birds, crocodilians, and some cartilaginous fishes, one or the other side fails to develop ( together with the corresponding ovary ), and only one functional oviduct is found.

In some classifications the chimaeras are included ( as subclass Holocephali ) in the class Chondrichthyes of cartilaginous fishes ; in other systems this distinction may be raised to the level of class.

Some species have lost their bone altogether, while in some it has been replaced by a cartilaginous support structure.

A variety of ornithopods and related cerapods had thin cartilaginous plates along the outside of the ribs ; in some cases, these plates mineralized and were fossilized.

* some ( or several ) kind of cartilaginous meat, such as oxtail and marrowbone ;

In some fishes, such as lampreys, this region is the largest part of the brain.

According to his account, some three thousand villagers had traveled to Manzanillo to greet the Spanish with loaves, fishes and other foodstuffs and were " without provocation, butchered ".

However, some species exhibit sex-role reversed behavior in which it is males that are most selective in mate choice ; the best-known examples of this pattern occur in some fishes of the family Syngnathidae, though likely examples have also been found in amphibian and bird species.

In amphibians and some primitive bony fishes, the larvae bear external gills, branching off from the gill arches.

**** Class Sarcopterygii ( lobe-finned fishes, some ancestral to tetrapods )

Iridescence is common in birds, fishes, insects, and some flowers, and is almost always caused by thin-film interference rather than diffraction.

Although many species are small, in some cases less than, the giant grouper ( Epinephelus lanceolatus ) is one of the largest bony fishes in the world, growing to in length and in weight.

In the end, both buoyancy and breathing may have been important, some modern physostome fishes do indeed use their bladders for both.

Except in fishes and some minor groups, type species are rarely reliably recorded in online animal databases.

When he died, his eldest daughter, Hilda Harpur-Crewe ( 1877-1949 ) sold some of his collection of birds, butterflies and fishes to pay death duties.

" In response to ctiticism from the far left, Passolini admitted that in his opinion " there are some horrible moments I am ashamed of ... The Miracle of the loaves and the fishes and Christ walking on water are disgusting pietism.

... narrowed the previous usage which could apply to fish never crossing the freshwater / sea boundary but simply moving upstream to spawn, for example in some fishes of the Rift Lakes

Diadromous fishes whose migration from fresh water to the seas, or vice versa, is not for the purpose of breeding, but occurs regularly at some other stage of the life cycle.

In some Asian cultures, the swim bladders of certain large sea fishes are considered a food delicacy.

Many will also take small fishes and some, notably the members of the genus Melichthys, feed on algae.

Like most bird species, they have parasites, several species of endoparasitic trematodes are known and some Digenea species that are transmitted via fishes.

They are largely carrion feeders and predators of large worms and similar small creatures, but various species also attack weakened fishes much as some lampreys do, and accordingly rank as opportunistic parasitoids under at least some conditions.

It parasitises the relationship between some cleaner fish and their client fishes, more than it parasitises either party to the relationship ; it attacks the client fish, approaching it in the guise of cleaner wrasse and snatches a mouthful of scales or other convenient tissue.