Scientists assume that cholesterol ( from the Greek chole, meaning bile, and sterios, meaning solid ) is somehow necessary for the formation of brain cells, since it accounts for about 2% of the brain's total solid weight.

For example the standard glutamic acid ( glutamate ) and the non-standard gamma-amino acid gamma-amino-butyric acid ( GABA ) are respectively the brain's main excitatory and inhibitory neurotransmitters, hydroxyproline-a major component of the connective tissue collagen-is synthesised from proline, the standard amino acid glycine is used to synthesise porphyrins used in red blood cells, and the non-standard carnitine is used in lipid transport.

It is widely believed that activity-dependent modification of synapses is the brain's primary mechanism for learning and memory.

The symptoms of CJD are caused by the progressive death of the brain's nerve cells, which is associated with the build-up of abnormal prion proteins forming amyloids.

In the context of chronic low plasma sodium, the brain's cells ( neurons and glia ) adapt by taking in a small amount of water ; the net effect is to move water out of the interstitium and equilibrate ( or nearly so ) the intracellular and extracellular tonicities.

If hypertonic therapy continues or is too rapid, the extracellular tonicity will continue to drive water out of the brain's cells, leading to cellular dysfunction and the condition of central pontine myelinolysis.

One of the most important aspects of Paul Broca's discovery was the observation that the loss of proper speech in expressive aphasia is due to the brain's loss of ability to produce language, as opposed to the mouth's loss of ability to produce words.

" " Onfray's philosophical project is to define an ethical hedonism, a joyous utilitarianism, and a generalized aesthetic of sensual materialism that explores how to use the brain's and the body's capacities to their fullest extent -- while restoring philosophy to a useful role in art, politics, and everyday life and decisions.

One of the smallest in marsupials with no more than 0. 2 % of its body weight, about 40 % of the cranial cavity is filled with cerebrospinal fluid, while the brain's two cerebral hemispheres are like " a pair of shrivelled walnut halves on top of the brain stem, in contact neither with each other nor the bones of the skull.

According to several linguists, neurocognitive research has confirmed many standards of language learning, such as: " learning engages the entire person ( cognitive, affective, and psychomotor domains ), the human brain seeks patterns in its searching for meaning, emotions affect all aspects of learning, retention and recall, past experience always affects new learning, the brain's working memory has a limited capacity, lecture usually results in the lowest degree of retention, rehearsal is essential for retention, practice does not make perfect, and each brain is unique " ( Sousa, 2006, p. 274 ).

Steven Connor suggests that mondegreens are the result of the brain's constant attempts to make sense of the world by making assumptions to fill in the gaps when it cannot clearly determine what it is hearing.

The study's conclusion that improving or augmenting the brain's working memory ability increases fluid intelligence is backed by some

** Narcolepsy: A chronic neurological disorder ( or dyssomnia ), which is caused by the brain's inability to control sleep and wakefulness.

Other experimental methods being researched involve substrate reduction therapy, which attempts to use alternative enzymes to increase the brain's catabolism of GM2 gangliosides to a point where residual degradative activity is sufficient to prevent substrate accumulation.

Sweating is controlled from a center in the preoptic and anterior regions of the brain's hypothalamus, where thermosensitive neurons are located.

The vivid body and world is made by our brain's ability to create fully convincing realms, even in the absence of sensory information.

However, it is not BPD that results, but rather a reaction to the isolating circumstances caused by a medical condition and the possibly coincident struggles of the patient to control his or her mood given damage to the brain's limbic system.

For people who do not want to bother with social interaction, there is the fornixator, a device that supplies sexual pleasure on demand by direct stimulation of the brain's pleasure centers.

Dennett's view of consciousness is that it is the apparently serial account for the brain's underlying parallelism.

During REM, the activity of the brain's neurons is quite similar to that during waking hours ; for this reason, the REM-sleep stage may be called paradoxical sleep.

A necessary note of caution is that modern embryologic orthodoxy indicates that the brain's true length axis finishes rostrally somewhere in the hypothalamus where basal and alar zones interconnect from left to right across the median line ; therefore, the axis does not enter the telencephalic area, although various authors, both recent and classic, have assumed a telencephalic end of the axis.

As he informs Watson, `` My life is spent in one long effort to escape from the commonplaces of existence.

The dweller at p is last to hear about a new cure, the slowest to announce to his neighbors his urgent distresses, the one who goes the farthest to trade, and the one with the greatest difficulty of all in putting over an idea or getting people to join him in a cooperative effort.

The most reaction can achieve is stasis, and a stasis that can be maintained only by the expenditure of an effort which ultimately exhausts itself.

Now this concern for the freedom of other peoples is the intellectual and spiritual cement which has allied us with more than forty other nations in a common defense effort.

A common meeting ground is desirable for those nations which are prepared to assist in the development effort.

In his effort to stir the public from its lethargy, Steele goes so far as to list Catholic atrocities of the sort to be expected in the event of a Stuart Restoration, and, with rousing rhetoric, he asserts that the only preservation from these `` Terrours '' is to be found in the laws he has so tediously cited.

but the possibility of this effort is bound up with that development of historical thought which is the greatest achievement of our civilization in the last two centuries, and it is utterly impossible to people in whom this development has not taken place.

For here if anywhere in contemporary literature is a major effort to counterbalance Existentialism and restore some of its former lustre to the tarnished image of the species Man, or, as Malraux himself puts it, `` to make men conscious of the grandeur they ignore in themselves ''.

The only response we can think of is the humble one that at least we aren't playing the marimba with our shoes in the United Nations, but perhaps the heavy domes in the house of delegates can improve on this feeble effort.

Gov. Dalton's New Commerce and Industry Commission is moving to create a nine-state regional group in a collective effort to attract new industry.

The most fundamental concept of the new approach to economic aid is the focusing of our attention, our resources, and our energies on the effort to promote the economic and social development of the less developed countries.

Although much of the Industrial Division's promotional effort is devoted to securing new locations and expansions by major industries, small business is also afforded considerable attention.

This is to be accomplished by nearly doubling the present level of preventive effort, detection, skilled fire-fighting crews, and equipment use.

In addition to its major effort on fuel cells, Patterson Moos Research Division is continuing to carry on research in other fields, both under contract for the Defense Department, other government agencies and for our own account.

It speeds muscle growth and power development even for the advanced bodybuilder because each hip and leg is exercised separately, thus enabling a massive, concentrated effort to be focused on each.

It is, moreover, a perfectly integrated ensemble effort.

Command's new Brahms Second is a major effort to make a record that sounds like a real orchestra rather than a copy of one.

The medical title of `` Lobar Ventilation In Man '' by Drs. C. J. Martin and A. C. Young, covers a brief paper which is one part of a much larger effort to apply electronics to the study of the respiratory process.

In these rapidly changing societies there is also too little appreciation of the need for effort to achieve goals.

In we're painting at our garage strong stress on at indicates that the job being done is not real painting but simply an effort at painting.

No effort is made in the same studies to present information on regional or national demand trends in these skills or to consider whether regional or national demands for other skills might provide much better opportunities for the youth to be trained.

There is a need for an expanded Federal effort to provide research and information to help guide state education departments and local school boards in existing programs.