The steroids, all derived from the same fused four-ring core structure, have different biological roles as hormones and signaling molecules.

The steroids vary by the functional groups attached to this four-ring core and by the oxidation state of the rings.

George Meredith has said that fervor is the core of style.

The burden of these reflections is that a broader unity among the free nations is at the core of our needs.

It is hypothesized that fertility is a function of the social system when the population as a whole is considered and a function of the subsystems when the two-fold division of core families and marginal families is considered.

but this is deceptive, for the core of membership is concentrated in a single social and economic stratum.

The congregation perishes when it is no longer possible to replenish that core from the neighborhood ; ;

moreover, residential mobility is so high in metropolitan areas that churches have to recruit constantly in their core stratum in order to survive ; ;

But where the core of NATO is concerned, the Secretary of State has not only reiterated the United States' profound attachment to the alliance, `` cornerstone '' of its foreign policy, but has announced that five nuclear submarines will eventually be at NATO's disposal in European waters.

That is, when Mr. Milstein thrust straight to the core of the music, sparks flying, bow shredding, violin singing, glittering and sometimes spitting, Mr. Hendl could go along.

It is a traditional virtue in many cultures, and a core aspect of various religious traditions, though the concept of ' others ' toward whom concern should be directed can vary among cultures and religions.

The general consensus amongst scholars is that Luwian was spoken — to a greater or lesser degree — across a large area of western Anatolia, including ( possibly ) Wilusa (= Troy ), the Seha River Land ( to be identified with the Hermos and / or Kaikos valley ), and the kingdom of Mira-Kuwaliya with its core territory of the Maeander valley.

The churches of the Anglican Communion have traditionally held that ordination in the historic episcopate is a core element in the validity of clerical ordinations.

* 1945 – Physicist Harry K. Daghlian, Jr. is fatally irradiated in a criticality accident during an experiment with the Demon core at Los Alamos National Laboratory.

Admission to any of the public universities in Arizona is ensured to residents in the top 25 % of their high-school class with a GPA of 3. 0 in core competencies.

Its purpose is to initialize the Amiga hardware and core components of AmigaOS and then attempt to boot from a bootable volume, such as a floppy disk or hard disk drive.

Along with tarot divination, astrology is one of the core studies of Western esotericism, and as such has influenced systems of magical belief not only among Western esotericists and Hermeticists, but also belief systems such as Wicca that have borrowed from or been influenced by the Western esoteric tradition.

The adrenal medulla is the core of the adrenal gland, and is surrounded by the adrenal cortex.

Bufotenin, an alkaloid from some toads, contains an indole core and is produced in living organisms from the amino acid tryptophan.

When a core electron is removed, leaving a vacancy, an electron from a higher energy level may fall into the vacancy, resulting in a release of energy.

ATM is a core protocol used over the SONET / SDH backbone of the public switched telephone network ( PSTN ) and Integrated Services Digital Network ( ISDN ), but its use is declining in favour of All IP.

Uncoating yields a transcriptionally active 470S core particle which is composed of two major proteins VP7 and VP3, and the three minor proteins VP1, VP4 and VP6 in addition to the dsRNA genome.

Although its Caucasian pieces were as brilliant as the earlier efforts, the book alienated the core of Pasternak's refined audience abroad, which was largely composed of anti-communist White emigres.

The Citizen Corps CERT core curriculum for the basic course is composed of the following nine units ( time is instructional hours ):

** Hysteresis: Changing or reversing the magnetic field in the core also causes losses due to the motion of the tiny magnetic domains it is composed of.

The proceeds from the pearling industry were divided on the basis of occupation ; at the top, a stratum of merchants, the core of which composed of the Al Khalifa ), Al-Sabah, Al-Roumi, and Al Jalahma, became the elite.

The core principle of council communism is that the state and the economy should be managed by workers ' councils, composed of delegates elected at workplaces and recallable at any moment.

This may suggest that the core 24, 000 verses, known as the Bharata, as well as an early version of the extended Mahabharata, were composed by the 4th century BCE.

However, almost all high medieval armies in Europe were composed of a great deal of paid core troops, and there was a large mercenary market in Europe from at least the early 12th century.

The core of the new agency was composed of the Civil Aeronautics Board's Bureau of Safety ( The CAB retained its economic regulation of the airline industry until it was closed on December 31, 1984 due to the Airline Deregulation Act of 1978 ).

The nucleosome core particle is composed of DNA and histone proteins.

Orthodox Judaism is composed of different groups with intertwining beliefs, practices and theologies, although in their core beliefs, all Orthodox movements share the same principles.

During composers Beethoven and Felix Mendelssohn's time, the orchestra was composed of a fairly standard core of instruments which was very rarely modified.

Enzymes composed of subunits with diverse functions are sometimes called holoenzymes, in which some parts may be known as regulatory subunits and the functional core is known as the catalytic subunit.

If the core of the star is not too massive ( less than approximately 1. 4 solar mass, taking into account mass loss that has occurred by this time ), it may then form a white dwarf ( possibly surrounded by a planetary nebula ) as described above for less massive stars, with the difference that the white dwarf is composed chiefly of oxygen, neon, and magnesium.

The outer ring is largely composed of young blue stars but the core is made up of older yellow stars.

The core principle of council communism is that the government and the economy should be managed by workers ' councils composed of delegates elected at workplaces and recallable at any moment.

It would have a gas or vapor core composed of UF < sub > 4 </ sub > with some < sup > 4 </ sup > He and / or < sup > 3 </ sup > He added to increase the electrical conductivity, the vapor core may also have tiny UF < sub > 4 </ sub > droplets in it.

In more analytic terms, it is " the representational faithfulness of information to the true state of the object that the information represents, where representational faithfulness is composed of four essential qualities or core attributes: completeness, currency / timeliness, accuracy / correctness and validity / authorization.

* Crag and tail, a similar formation, with a more resilient core ( generally composed of igneous or metamorphic rock )

< center > RG-59 flexible coaxial cable composed of :</ center > A: outer plastic sheathB: woven copper shieldC: inner dielectric insulatorD: copper core

Instead, we know that the Earth's core is composed of an alloy of iron and other minerals.

Throughout mid-to-late 1967, Wilson concurrently oversaw the production of such heavily orchestrated songs as " Can't Wait Too Long " and " Time to Get Alone " ( the latter originally intended for Redwood, the band who would become Three Dog Night ), alongside the albums Smiley Smile ( composed mainly of reconstituted SMiLE material recorded in minimalist arrangements by the core Beach Boys ) and the R & B-inflected Wild Honey, both of which performed only modestly on the charts.

The material of the core of the magnet ( usually iron ) is composed of small regions called magnetic domains that act like tiny magnets ( see ferromagnetism ).