A distillation is the separation or partial separation of a liquid feed mixture into components or fractions by selective boiling ( or evaporation ) and condensation.

Another technique used in drug development uses an iterative selective process called in vitro selection to evolve aptamers, or nucleic acid fragments capable of binding specific organic compounds with high binding affinity.

Mycophenolic acid acts as a non-competitive, selective, and reversible inhibitor of Inosine-5 ′- monophosphate dehydrogenase ( IMPDH ), which is a key enzyme in the de novo guanosine nucleotide synthesis.

Clopyralid ( 3, 6-dichloro-2-pyridinecarboxylic acid ) is a selective herbicide used for control of broadleaf weeds, especially thistles and clovers.

A selective medium for G. vaginalis is colistin-oxolinic acid blood agar.

Acridine orange ( AO ) is a nucleic acid selective fluorescent cationic dye useful for cell cycle determination.

Intense competition for the limited resources caused these species to evolve the production of highly toxic compounds to improve survivability ; natural products such as Berkeleydione, berkeleytrione and Berkelic acid have been isolated from these organisms which show selective activity against cancer cell lines.

DCKA ( 5, 7-dichlorokynurenic acid ) is a selective NMDA receptor ( NMDAR ) antagonist acting at the glycine site on the NMDAR complex.

This model is better, but it doesn't take into account the selective pressure of amino acid changes.

For example, whereas the pancreatic estrase is selective for short-chain retinyl esters, the brush-border membrane enzyme preferentially hydrolyzes retinyl esters containing a long-chain fatty acid such as palmitate or stearate.

This allows for the selective toxicity to bacterial cells ( or any cell dependent on synthesizing folic acid ) over human cells.

Cyclic nucleotide-gated ions channels in plants are similar in amino acid sequence and structure to non-selective cation CNG channels in animals, as well as trans-membrane-domain K < sup >+</ sup >- selective shaker family channels.

Serotonin, the main endogenous ligand of 5-HT receptors, is a functionally selective agonist at this receptor, activating phospholipase C ( which leads to inositol triphosphate accumulation ), but does not activate phospholipase A2, which would result in arachidonic acid signalling.

5-hydroxytryptophan, the precursor of serotonin that is not metabolized to glutaryl-CoA, glutaric acid and secondary metabolites, could be used as an adjunct to selective tryptophan restriction, considering the risks associated with the procedure.

( 2003b ) emphasize that acute striatal necrosis is a distinctive pathologic feature of at least 20 other disorders of very different etiologies ( e. g. HIV encephalopathy-AIDS dementia complex, pneumococcal meningitis, hypoadrenal crisis, methylmalonic acidemia, propionic acidemia, middle cerebral artery occlusion, hypertensive vasculopathy, acute mycoplasma pneumoniae infection, 3-nitropropionic acid intoxication, late onset familial dystonia, cerebrovascular abrupt and severe neonatal asphyxia (" selective neuronal necrosis ")).

What we will be sacrificing in any such arrangement will be our power to be selective which is contained in the reciprocal trade principle under which we now operate.

They are very selective feeders and will feed on the leaves of one species and disregard other species surrounding it.

Companies can be more selective in those whom they employ thus the least skilled and least experienced will typically be excluded.

In many fields, an informal hierarchy of scientific journals exists ; the most prestigious journal in a field tends to be the most selective in terms of the articles it will select for publication, and will also have the highest impact factor.

This phase will include the restoration of Buckingham Fountain and fountain table, the construction of a new equipment room with selective demolition, structural construction and repair, masonry restoration and repair, mechanical and electrical work, bronze restoration and repair and installation of site improvements and amenities.

It will still degrade system performance but by using selective calling the user will not have to hear the noises produced by receiving the interference.

In this way, birds in areas in which warning calls are given will be at a selective advantage relative to birds in areas free from warning calls.

It also could be interpreted as "( she ) will have carried / birthed well ", referring to their selective breeding program.

Beta blockers that target the beta-1 receptor are called cardio selective because beta-1 is responsible for increasing heart rate ; hence a beta blocker will slow the heart rate.

Though many in the Conservative Party favour the expansion of grammar schools, since 2006 the Party's policy has been that no new grammar schools will be built, except to cope with population expansion in wholly selective areas such as Buckinghamshire and Kent.

A typical viewer has seen enough advertisements to anticipate that most advertisements will be bothersome, prompting the viewer to be mercilessly selective in their viewing.

How the membrane is constructed to be selective in its permeability will determine the rate and the permeability.

While doing this, frequently the last plate will be non-selective, in this example, a nonselective plate will be replica plated after the Amp + plate, to confirm that the absence of growth on the selective plate is due to the selection itself, and not a problem with transferring cells.

KPCB is highly selective in the companies it invests in, and it aims to build " category defining companies " that will become leaders in the field.

Furthermore, it is likely that the peripheral population will inhabit an environment different from its ancestral gene pool, likely causing it to be subjected to different selective pressures as it colonizes new areas.

Most films will also include selective use of other transitions, usually to convey a tone or mood, suggest the passage of time, or separate parts of the story.

Part of the reason for the selective nature of P. troilus and host plants may have to do with the requirement of positive stimuli to confirm that a plant is Lauraceae among P. troilus before they will feed on it, while P. glaucus, for example, will at once try to feed on any plant presented to it.

In Australia, " wedge politics " may sometimes be known as dog whistle politics, due to the practice of selective targeting so that only certain people will hear the message being pitched.

Hence, people will be selective, and will buy the most factual media at the lowest price: “ For a dollar, you may not even get an armful of candy, but for a dollar or less people expect reality / representations of truth to fall into their laps ”.

Such a list must naturally be selective, and the treatment of each man is brief, for I am interested only in their general ideas on the moral measure of literature.

As was said in Gonzales, `` it is the Appeal Board which renders the selective service determination considered ' final ' in the courts, not to be overturned unless there is no basis in fact.

There we held `` that the statutory scheme for review, within the selective service system, entitles [ conscientious objectors ] to no guarantee that the FBI reports must be produced for their inspection ''.

With such a force of manned bombers we could bring enormous pressure to bear on an enemy, and this pressure would be selective and extremely discriminating.

He then proposed the idea that it might be possible to create chemicals that would act as a selective drug that would bind to and kill bacteria without harming the human host.

There is a huge variation among patients with the same diagnosis, and aphasias can be highly selective.

One property many proteins have is that they specifically bind to a certain molecule or class of molecules — they may be extremely selective in what they bind.

Changes can also be caused by natural events such as a large meteor hitting Earth and selective breeding ( artificial selection ) of plants by humans for specific traits.

The views range from those that hold that benzodiazepines are not effective long-term and that they should be reserved for treatment-resistant cases to that they are as effective in the long term as selective serotonin reuptake inhibitors.

# associated performance issues, e. g., software context switching can be selective and store only those registers that need storing, whereas hardware context switching stores nearly all registers whether they're required or not.

A standard piece of database design guidance is that the designer should create a fully normalized design ; selective denormalization can subsequently be performed for performance reasons.

Feedback oscillator circuits can be classified according to the type of frequency selective filter they use in the feedback loop:

A computer, for instance, allows us so many more freedoms than we have without a computer, but should these technological mediums be implied freedoms, or selective privileges?

Many modern military firearms have a selective fire option, which is a mechanical switch that allows the firearm be fired either in the semi-automatic or fully automatic mode.

" With the help of record producers Herb Alpert and Lou Adler, Jan and Dean scored a No. 10 hit with " Baby Talk " ( 1959 ), their first song to contain a few of the soon to be famous elements that became associated with surf ( close vocal harmonies, selective use of major and minor chords, falsetto doo-wop singing ) and then scored a series of hits over the next couple of years.

There are well known problems such as " spreading activation " ( this is a problem in navigating a network of nodes ), " subsumption " ( this is concerned with selective inheritance ; e. g. an ATV can be thought of as a specialization of a car but it inherits only particular characteristics ) and " classification.

Various methods, such as selective media or PCR, can then be used for detection.

MAO-A inhibition reduces the breakdown of primarily serotonin, norepinephrine, and dopamine ; selective inhibition of MAO-A allows for tyramine to be metabolised via MAO-B.

The term " natural selection " was popularized by Charles Darwin who intended it to be compared with artificial selection, what we now call selective breeding.

Natural selection can act on any heritable phenotypic trait, and selective pressure can be produced by any aspect of the environment, including sexual selection and competition with members of the same or other species.