In most contemporary educational systems of the world, secondary education comprises the formal education that occurs during adolescence.

The C-isotope chemostratigraphic characteristics obtained for contemporaneous cap carbonates in different parts of the world may be variable in a wide range owing to different degrees of secondary alteration of carbonates, dissimilar criteria used for selection of the least altered samples, and, as far as the C-isotope data are concerned, due to primary lateral variations of δ < sup > l3 </ sup > C < sub > carb </ sub > in the upper layer of the ocean.

George R. R. Martin set the Ice and Fire story in an alternative world of Earth or a " secondary world ", such as J. R. R. Tolkien pioneered with Middle-earth.

High fantasy is defined as fantasy fiction set in an alternative, entirely fictional (" secondary ") world, rather than the real, or " primary " world.

The secondary world is usually internally consistent but its rules differ in some way ( s ) from those of the primary world.

* The secondary / parallel world ( s ) is entered through a portal from the primary world ( e. g. Alice in Wonderland, The Chronicles of Narnia, His Dark Materials, Xanth, The Dark Tower, and Avantasia )

In the case of a world-within-a-world, the secondary world co-exists with the primary world ; however, the mundane inhabitants of the primary world are unaware of the secondary world.

As a whole, the poem is connected to Coleridge's belief in a secondary Imagination that can lead a poet into a world of imagination, and the poem is both a description of that world and a description of how the poet enters the world.

The McMath-Pierce Solar Telescope on the facilities is the largest solar telescope in the world and the largest unobstructed reflector ( it doesn't have a secondary mirror in the path of incoming light ).

In tropical areas of the world, a common cause of secondary lymphedema is filariasis, a parasitic infection.

The secondary constituents are often called solutes.

A mixture of starch sources may be used, with a secondary starch source, such as maize ( corn ), rice, or sugar, often being termed an adjunct, especially when used as a lower-cost substitute for malted barley.

It is meant to be a holistic piece of writing about the people in question, and today often includes the longest possible timeline of past events that the ethnographer can obtain through primary and secondary research.

Sunday pages during the 1930s and into the 1940s often carried a secondary strip by the same artist as the main strip.

Aside from these core elements, a civilization is often marked by any combination of a number of secondary elements, including a developed transportation system, writing, standardized measurement, currency, contractual and tort-based legal systems, characteristic art and architecture, mathematics, enhanced scientific understanding, metallurgy, political structures, and organized religion.

Heavy metals ( Tl, Cd, Hg, ...) are often found as trace elements in common metal sulfides ( pyrite ( FeS < sub > 2 </ sub >), zinc blende ( ZnS ), galena ( PbS ), ...) present as secondary minerals in most of the raw materials.

The term " storage " is often ( but not always ) used in separate computers of traditional secondary memory such as tape, magnetic disks and optical discs ( CD-ROM and DVD-ROM ).

The term tickler coil usually refers to a feedback coil, which is often the third coil placed in relation to a primary coil and secondary coil.

Primary name servers are often master name servers, while secondary name server may be implemented as slave servers.

Disk Operating System ( specifically ) and disk operating system ( generically ), most often abbreviated as DOS, refer to an operating system software used in most computers that provides the abstraction and management of secondary storage devices and the information on them ( e. g., file systems for organizing files of all sorts ).

During this time, the dagger was often employed in the role of a secondary defense weapon in close combat.

Instructors in primary and secondary institutions are often called teachers, and they direct the education of students and might draw on many subjects like reading, writing, mathematics, science and history.

Primary explosives are often used in detonators or to trigger larger charges of less sensitive secondary explosives.

The information available on Greek fire is exclusively indirect, based on references in the Byzantine military manuals and a number of secondary historical sources such as Anna Komnene and Western European chroniclers, which are often inaccurate.

The interaction of hormone and receptor typically triggers a cascade of secondary effects within the cytoplasm of the cell, often involving phosphorylation or dephosphorylation of various other cytoplasmic proteins, changes in ion channel permeability, or increased concentrations of intracellular molecules that may act as secondary messengers ( e. g., cyclic AMP ).

Industry is often classified into three sectors: primary or extractive, secondary or manufacturing, and tertiary or services.

Lebanese political institutions often play a secondary role to highly confessionalized personality-based politics.

In practice, LORAN is implemented in integrated regional arrays, or chains, consisting of one primary station and at least two ( but often more ) secondary stations, with a uniform group repetition interval ( GRI ) defined in microseconds.

Though, " traditional functions do not apply ," such as the, " brief forays into another key ," implied by secondary dominants, the, " traditional ," ' five-of ' ( V / x ) names are often used by musicians without formal training and are useful to, " distinguish them from the ... chords of the chromatic-minor system.

The primary structure of a biological polymer to a large extent determines the three-dimensional shape known as the tertiary structure, but nucleic acid and protein folding are so complex that knowing the primary structure often doesn't help either to deduce the shape or to predict localized secondary structure, such as the formation of loops or helices.

During and after synthesis, polypeptide chains often fold to assume, so called, native secondary and tertiary structures.

Contemplative approaches may be used in the classroom, especially in tertiary or ( often in modified form ) in secondary education.

Covers that were sent without any secondary purpose are considered non-philatelic and often are much more challenging to find and collect.

They think, perforce, of physical survival: everything else is secondary.

For this reason, the more uncertain skywave service was denominated `` secondary '' in our rules, as compared to the steadier, more reliable groundwave `` primary service '', and, for both skywave service and skywave interference, signal strength is expressed in terms of percentage of time a particular signal-intensity level is exceeded -- 50 percent of the time for skywave service, 10 percent of the time for skywave interference.

It is characterized by the presence of incompletely developed secondary lobules ; ;

Though there is obviously great need for continued experimentation with various types of short-term intervention to further efforts in developing an operational definition of prevention at the secondary -- or perhaps, in some instances, primary -- level, the place of short-term intervention has already been documented by a number of investigators in a wide variety of settings.

Preliminary evidence tentatively indicates that the molecule ( metabolite 1 ) ) is cleaved at a secondary amide bond.

The Roman Catholic natural-law tradition regards as self-evident that the primary objective purpose of the conjugal act is procreation and that the fostering of the mutual love of the spouses is the secondary and subjective end.

Their secondary hero is another pro, Willie Chisholm, who drank his lunch during another Open and tried to blast his way out of a rock-strewn gully.

It means to do it and to know one is doing it, but as only a secondary if certain effect of the good one primarily does and intends.

The secondary literature on Aristotle is vast.

This response is mostly secondary because salamanders have been observed to remain stationary near odoriferous prey but only feed if it moves.

Asparagales have a method of secondary thickening which is otherwise only found inDioscorea ( in the order Disoscoreales ).

The stamens are usually found around the style, either aggregated densely or fused into a tube, probably an adaptation in association with the plunger ( brush ; or secondary ) pollination that is common among the families of the order, wherein pollen is collected and stored on the length of the pistil.

An abugida ( from Ge ‘ ez አቡጊዳ ’ äbugida ), also called an alphasyllabary, is a segmental writing system in which consonant – vowel sequences are written as a unit: each unit is based on a consonant letter, and vowel notation is secondary.

Proline is the only proteinogenic amino acid whose side-group links to the α-amino group and, thus, is also the only proteinogenic amino acid containing a secondary amine at this position.

The ideal grade is called " Deep Siberian " and has a primary purple hue of around 75 – 80 %, with 15 – 20 % blue and ( depending on the light source ) red secondary hues.

In this case, the arthritis is considered to be secondary to the main disease ; these include:

The primary is of magnitude 5. 6 and the secondary is of magnitude 9. 6.

The primary ( ζ < sup > 1 </ sup > Ant ) is of magnitude 5. 8, though it is a double star with a primary of magnitude 6. 2 and a secondary of magnitude 7. 0.