While the North American PSTN can use PRI or Analog T1 format from PBX to PBX, the POTS or BRI can be delivered to a business or residence.

While the idea of shared electron pairs provides an effective qualitative picture of covalent bonding, quantum mechanics is needed to understand the nature of these bonds and predict the structures and properties of simple molecules.

While counter weights add a considerable amount of weight to the crankshaft, it provides a smoother running engine and allows higher RPM levels to be reached.

While threads require external library support in most languages, Erlang provides language-level features for creating and managing processes with the aim of simplifying concurrent programming.

While these methods of distributing communion are not accepted in Roman Catholic churches, one such church provides a mechanical dispenser to allow those intending to communicate to place in a bowl, without touching them by hand, the hosts for use in the celebration.

While Freenet provides an HTTP interface for browsing freesites, it is not a proxy for the World Wide Web ; Freenet can only be used to access content that has been previously inserted into the Freenet network.

While Pepys provides an account of the Plague through his diary, Henry Foe's nephew Daniel Defoe published A Journal of the Plague Year, a fictional account of the plague, in 1722, possibly based on Foe's journals.

While the first is far shorter than the second, it sets out the basic themes and provides an interpretive key for understanding the entire book.

While Conrad ’ s materialism does not prove him an optimist, as he believed, or a pessimist, as a surface reading of his book may suggest, it provides an important filter through which one may discern his world view.

While thinner than a swaged bullet jacket, the plated jacket is far thicker than normal electroplate, and provides significant structural integrity to the bullet.

While a number of private railroads exist and provide mostly commuter-type services, the national railway, Ferrovie dello Stato, also provides sophisticated high-speed rail service that joins the major cities of Italy from Naples through northern cities such as Milan and Turin.

While it is true that three power strokes typically occur per rotor revolution due to the 3: 1 revolution ratio of the rotor to the eccentric shaft, only one power stroke per shaft revolution actually occurs ; this engine provides three power ' strokes ' per revolution per rotor giving it a greater power-to-weight ratio than piston engines.

; Pharmacology: While it is well established that the skin provides an ideal site for the administration of local and systemic drugs, it presents a formidable barrier to the permeation of most substances.

While burning itself, it provides fragrance to others.

While CT provides good spatial resolution ( the ability to distinguish two separate structures an arbitrarily small distance from each other ), MRI provides comparable resolution with far better contrast resolution ( the ability to distinguish the differences between two arbitrarily similar but not identical tissues ).

While the wooden structure of the Mary Rose and the individual artifacts have been undergoing conservation since their recovery, the Holland 1 provides an example of a relatively recent ( metal ) wreck for which extensive conservation has been necessary to preserve the hull.

While the Singapore Department of Statistics reports overall population figures for Singapore ( 4. 48 million in 2006 ), as a matter of policy, it only provides more detailed demographic breakdown analysis for the approximately 80 % of the population who are Singapore citizens and Permanent Residents ( collectively termed ' residents ').

While the Secretary General of the United Nations receives instruments of ratification and accession and the UN provides support for meetings of states party to the Convention, the UN has no direct operational role in the implementation of the Convention.

While collagen ( mostly type I ) provides strength and structural support to the tissue, which are useful to withstanding stress and resisting deformation when subjected to a force, elastin fibers bring elasticity to the tissue, allowing it to return to its original shape after deformation.

While the first year of the program is usually devoted to completing the requirements of the core curriculum, the second year provides students with the opportunity to choose from the more than 130 elective courses available at the School and supplement them with more than 4, 000 graduate-level classes from the University's other graduate and professional schools.

While the name provides a lot of this, the sponsorship of Newcastle United, the depiction of the River Tyne in the blue star and mentioning in programmes such as Whatever Happened to the Likely Lads have helped ensure its association.

While the LANS retirement program provides rehired UC employees with pensions similar to those UC would have given them, LANS no longer guarantees full pensions to newly hired LANL employees, it now provides basic 401 ( k ) retirement saving options.

While apoptosis often provides beneficial effects to the organism, necrosis is almost always detrimental and can be fatal.

While maintaining full compatibility with older versions, this proposed standard provides numerous extensions that make writing and managing VHDL code easier.

While the Arrhenius concept is useful for describing many reactions, it is also quite limited in its scope.

While the Mercury capsule could only support one astronaut on a limited Earth orbital mission, the Apollo spacecraft was to be able to carry three astronauts on a circumlunar flight and eventually to a lunar landing.

While not publishing mathematical research in conventional ways during the 1980s, he produced several influential manuscripts with limited distribution, with both mathematical and biographical content.

While this discussion is limited to the xy-plane, it can easily be extended to higher dimensions.

While the 7800 can actually play hundreds of titles due to its compatibility with the Atari 2600, there was limited third party support for the 7800 and fewer than 100 titles were specifically designed for it.

While in the first five years following World War II, massive emigration from these states to the West occurred, restrictions implemented thereafter stopped most East-West migration, except that under limited bilateral and other agreements.

While this certificate has limited portability – to other corporations, for example – it is the most simple to develop.

While Eddy's Manual established limited executive functions under the rule of law in place of a traditional hierarchy, the controversial 1991 publication of a book by Bliss Knapp led the then Board of Directors to make the unusual affidavit during a suit over Knapp's estate that neither acts by it violating the Manual, nor acts refraining from required action, constituted violations of the Manual.

While they supported limited suffrage, they saw voting as a privilege, rather than as a right.

While the budget consists of limited amount of donations and business operations owned by the party, its majority comes from the grant of national treasury, the same way that supports the other 8 subordinative registered parties, which making a bizarre exception among modern political parties.

While the sources for north-eastern Britain, the lands of the kingdom of Northumbria and the former Pictland, are limited and late, those for the areas on the Irish Sea and Atlantic coasts — the modern regions of north-west England and all of northern and western Scotland — are non-existent, and archaeology and toponymy are of primary importance.

While considered a saint in most other branches of Christianity, Clement's veneration is very limited, although the Universal Catholic Church's cathedral in Dallas is dedicated to him.

While condoning divorce only under limited circumstances, most Protestant churches allow for divorce and remarriage.

While use of the term consumer is widespread among governmental, business and media organisations, many individuals and groups find the label objectionable because it assigns a limited and passive role to their activities.

While the equation is definitely superior to the ideal gas law and does predict the formation of a liquid phase, the agreement with experimental data is limited for conditions where the liquid forms.

While there are few and they have limited authority, the decisions carry much weight with legal commentators and are quite influential on the development of international environmental law.

While taxonomists using molecular phylogenetic techniques find strong support for the order, there remain questions about the morphological relationships of the Quillajaceae and Surianaceae to the rest of the order, due in part to limited research on these families.

While limited by her gender, Madame Roland took it upon herself to spread Revolutionary ideology and spread word of events, as well as to assist in formulating the policies of her political allies.

While expressions like these are of great theoretical importance their practical use is limited by our ability to factor numbers.

While it would defeat the business model if companies provide all of their goods and services free of charge, it is common for them to provide limited amount of free goods in their promotional mix.

While Greek fire remained a potent weapon, its limitations were significant when compared to more traditional forms of artillery: in its siphon-deployed version, it had a limited range, and it could be used safely only in a calm sea and with favourable wind conditions.

While all free men originally exercised the right to vote in such elections, suffrage eventually came to be limited to the leading men of the realm.

While these writings display some limited continuities with the earlier medical ideas known from the Vedas, historians have been able to demonstrate direct historical connections between early Ayurveda and the early literature of the Buddhists and Jains.

While technological advances have enabled the leadership process to take place in such virtual contexts, they present new challenges for leaders as well, such as the need to use technology to build relationships with followers, and influencing followers when faced with limited ( or no ) face-to-face interaction.

While the nations still offer limited housing, today they are best described as student societies.