Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using physical laws.

Based on phylogenetic research, the latest ( 2009 ) revision of the APG classification groups together these three families under the conserved name of Amaryllidaceae.

At each of these levels a botanist might be concerned with the classification ( taxonomy ), structure ( anatomy and morphology ), or function ( physiology ) of plant life.

A common shortcoming of these classification schemes is that they produce distinct boundaries between the zones they define, rather than the gradual transition of climate properties more common in nature.

Because of all these, the mere classification of Sireniki Eskimo language is not settled yet: Sireniki language is sometimes regarded as a third branch of Eskimo ( at least, its possibility is mentioned ), but sometimes it is regarded rather as a group belonging to the Yupik branch.

More recent experiments have suggested that these morphological descriptions of endocytic events may be inadequate, and a more appropriate method of classification may be based upon the clathrin-dependence of particular pathways, with multiple subtypes of clathrin-dependent and clathrin-independent endocytosis.

While these definitions are distinct, the problem of precisely measuring rapid decomposition makes practical classification of explosives difficult.

In the Hubble classification scheme, these are designated by an SB, followed by a lower-case letter ( a, b or c ) that indicates the form of the spiral arms ( in the same manner as the categorization of normal spiral galaxies ).

In current medical classification, these people are now said to have " profound mental retardation.

Sometimes, I – O psychology is considered a sister field or branch of organizational studies, organizational science, organizational behavior, human resources, and / or management, but there is no universally accepted classification system for these related fields.

This system is designed to promote international comparability in the collection, processing, classification, and presentation of these statistics.

Greenberg's subgrouping of these languages has not been accepted by the few specialists who have worked on the classification of these languages.

There are several subspecies but a precise classification of these is still a matter of dispute.

A close relationship among these families, and particularly Malvaceae and Bombacaceae, has generally been recognized although until recently most classification systems have maintained them as separate families.

According to these new rules, " mineral species can be grouped in a number of different ways, on the basis of chemistry, crystal structure, occurrence, association, genetic history, or resource, for example, depending on the purpose to be served by the classification.

Considering the variability of the world's languages, it becomes clear that this classification is not at all clear cut, and many languages do not neatly fit any one of these types, and some fit in more than one way.

Just before these articles were collected in final book form ( The Languages of Africa ) in 1963, he amended his classification by adding Kordofanian as a branch co-ordinate with Niger – Congo as a whole ; consequently, he renamed the family Congo – Kordofanian, later Niger – Kordofanian.

Some modern scholars follow this classification by including all Middle Indo-Aryan languages under the rubric of " Prakrits ", while others emphasise the independent development of these languages, often separated from the history of Sanskrit by wide divisions of caste, religion, and geography.

However, the classification of these two forms has varied from researcher to researcher.

On the other hand in practice subspecies are often defined by easily observable physical appearance, but there is not necessarily any evolutionary significance to these observed differences, so this form of classification has become less acceptable to evolutionary biologists.

With the advent of many people favoring cremation in North America, there has been a new classification of a funeral establishment that has started to become popular, these are classified as a " Transfer Service ", they can provide the basic needs to have someone either cremated or buried without a funeral service.

In a similar manner, during these years, heat was beginning to be distinguished into different classification categories, such as “ free heat ”, “ combined heat ”, “ radiant heat ”, specific heat, heat capacity, “ absolute heat ”, “ latent caloric ”, “ free ” or “ perceptible ” caloric ( calorique sensible ), among others.

In cases such as these, the classification of a language as tonal may depend on the researcher's interpretation of what tone is.

A memorable example of these sorts of schemes " involved the idea of running the poor through a joint-stock company ".

Under these schemes, authors are paid a fee for the number of copies of their books in educational and / or public libraries.

As widespread inefficiencies in numbering ( such as the assignment of entire blocks of 10000 numbers to every competing carrier in every small village to support local number portability schemes ) have created shortages of available numbers, these prefixes are often " reclaimed " and issued as standard exchanges, moving the handful of numbers in them to one standard test exchange ( usually 958 ).

Using Flynn's taxonomy, these two schemes of dealing with data are generally referred to as SIMD ( single instruction, multiple data ) and SISD ( single instruction, single data ), respectively.

Although these encryption methods were more complex than previous schemes and required machines to encrypt and decrypt, other machines such as the British Bombe were invented to crack these encryption methods.

Studies have demonstrated that, due to the high incidence of accidents at these sites, some such segregated schemes can actually increase the number of car-bike collisions.

Unlike other schemes, this definition includes the objects with major semi-axis less than 39. 4 AU ( 2: 3 resonance ) – named Inner classical belt, or more than 48. 7 ( 1: 2 resonance ) – named Outer classical belt while reserving the term Main classical belt for the orbits between these two resonances.

In these schemes, some loss of information is acceptable.

Anarchy in late 1996 to early 1997, as a result of the collapse of these pyramid schemes, alarmed the world and prompted international mediation.

Today these are three main schemes operating in Ireland, although ValueClub has been withdrawn from Dunnes ' Northern Ireland stores.

Due to increasing oil prices and tightening of margins, all of these schemes ended by the end of 2005.

Very elaborate and complex schemes for town defences were developed in the Netherland and France but these belong mainly to the post-medieval periods.

It is possible that these schemes could exist in parallel to the proposed inter-ocean canal.

Hence, if social security benefits are portable, contributors to, for example, old-age pension schemes do not experience any disadvantage such as the loss of contributions and benefits associated with these contributions when moving from one job to another, from one occupation to another, or from the public to the private sector.

While previous critics such as A. W. Gomme believed that the slave was “ truly comic character, the devisor of ingenious schemes, the controller of events, the commanding officer of his young master and friends, is a creation of Latin comedy ,” and that Greek dramatists such as Menander did not use slaves in such a way that Plautus later did, Harsh refutes these beliefs by giving concrete examples of instances where a clever slave appeared in Greek comedy.

In many of these schemes, the session key is unique to each message exchange, being pseudo-randomly chosen for each message.

Recordings made using these other equalization schemes will typically sound odd if they are played through a RIAA-equalized preamplifier.

Only a minority of these have proper names, all others are designated by catalogization schemes.

In some of these schemes, the two strands of gut that form the fret are separated so that the player can finger a slightly sharper or flatter version of a note ( for example G sharp vs. A flat ) to suit different circumstances.

That is, Piaget suggests that the environment is understood through assimilations of objects in the available schemes of action and these accommodate to the objects to the extent that the available schemes fall short of the demands.

While these countries reprocess the fuel carrying out single plutonium cycles, India is the only country known to be planning multiple plutonium recycling schemes.