At the present time we do not know by what biochemical mechanism TSH acts on the thyroid, but for bio-assay of the hormone there are a number of properties by which its activity may be estimated, including release of iodine from the thyroid, increase in thyroid weight, increase in mean height of the follicular cells and increase in the thyroidal uptake of Af.

At the end of work one day, the personnel man took the applicants one at a time, asked them to sit behind the receptionist's desk and he then played the role of a number of people who might come to the receptionist with a number of queries and for a number of purposes.

At the same time, every device that can be employed to reduce the number of variables is of the greatest value, and it is one of the attractive features of dynamic programming that room is left for ingenuity in using the special features of the problem to this end.

At last count, sixteen former Rhodes Scholars ( see box on page 13 ) had been appointed to the Administration, second in number only to its Harvard graduates.

Astatine ( or ) is a radioactive chemical element with the chemical symbol At and atomic number 85.

At the beginning of the twentieth century, a number of military armored vehicles were manufactured by adding armor and weapons to existing vehicles.

At the beginning of the 16th century a number of anabaptists migrated into the upper Wynen and Rueder valleys from Zurich.

At the time, a key driver for success with a home console was the number of home conversions it had of popular arcade games.

At some point an unknown reaction called baryogenesis violated the conservation of baryon number, leading to a very small excess of quarks and leptons over antiquarks and antileptons — of the order of one part in 30 million.

At the start of each game, the doubling cube is placed on the bar with the number 64 showing ; the cube is then said to be " centered, on 1 ".

At regular intervals, the housemates each privately nominate a number of fellow housemates that they wish to see evicted from the house.

At the same time there was a significant though somewhat gradual decline in the number of colonies maintained by beekeepers.

... At least 2, 505 people were sentenced for cannibalism in the years 1932 and 1933 in Ukraine, though the actual number of cases was certainly much greater.

At the intersection between community development and community building are a number of programs and organizations with community development tools.

At the moment, most community colleges award qualifications up to Level 3 in the Malaysian Qualifications Framework ( Certificate 3 ) in both the Skills sector ( Sijil Kemahiran Malaysia or the Malaysian Skills Certificate ) as well as the Vocational and Training sector but the number of community colleges that are starting to award Level 4 qualifications ( Diploma ) are increasing.

At the end of the 19th century, slavery in the Brazilian Empire was already doomed for many reasons, among them the ever increasing number of slave's escapes and the frequent raids by quilombo militias on properties which still adopted slavery.

At the start of 1971, Pope Paul VI set an age limit of eighty years for electors, who were to number no more than 120, but set no limit to the number of cardinals as a whole, including those over eighty.

At this time a number of researchers, most notably Eugene M. Shoemaker, ( co-discoverer of the comet Shoemaker-Levy 9 ), conducted detailed studies of a number of craters and recognized clear evidence that they had been created by impacts, specifically identifying the shock-metamorphic effects uniquely associated with impact events, of which the most familiar is shocked quartz.

At any instant in time, a file might have a size, normally expressed as number of bytes, that indicates how much storage is associated with the file.

At the primary school level Corsican is taught up to a fixed number of hours per week ( three in the year 2000 ) and is a voluntary subject at the secondary school level, but is required at the University of Corsica.

At first Pope Innocent III tried pacific conversion, and sent a number of legates into the Cathar regions.

At one of the very worst sites, around Sandakan in Borneo, only six of some 2, 500 prisoners survived.

At the start of the game there are no cities anywhere in the world: the player controls one or two settler units, which can be used to found new cities in appropriate sites ( and those cities may build other settler units, which can go out and found new cities, thus expanding the empire ).

At smaller sites, temperatures 10 K higher than the surroundings persisted for almost two weeks.

At one point it was announced that the release had been delayed to allow the inclusion of the video for " May it Be ", while the ( now defunct ) fan sites reported that a dispute over the sound quality of the release led to it being withdrawn.

At the sites where exchange happens, chiasmata form.

At Noin-Ula and other Hun burial sites in Mongolia and region north of Lake Baikal, the artifacts displayed over twenty carved characters.

At the moment Koolhaas ' constructions sites are in China: the massive Central China Television Headquarters Building in Beijing, China, and the new building for the Shenzhen Stock Exchange, the equivalent of the NASDAQ in China.

At first, disk space on a server was hard to come by, so networks of mirror sites like Info-Mac, containing large shareware libraries were developed, accessible via the web or ftp.

At a number of sites in Orkney investigators have found a glassy, slag-like material called " Kelp " or " Cramp " that may be the residual burnt seaweed.

At Baker University, a private school in Baldwin City, Kansas, roughly 10 miles south of Lawrence, a number of students drove around the city, looking at sites depicted in the film as having been destroyed.

At times, sites are entered first by locals, and may sport large amounts of graffiti and other acts of vandalism.

At 40 sites in Europe fossil bones and dental remains of leopards dating from the Pleistocene were excavated mostly in loess and caves.

At the end of the dot-com boom in the 1990s, many governments had already committed to creating portal sites for their citizens.

At the time Bari affiliated with Earth First !, environmentalists backed their legal suits and lobbying against perceived timber overcutting with blockades of job sites in the woods and tree sitting.

At the 2008 Coachella Music Festival, Prince performed a cover of Radiohead's " Creep ", but immediately after he forced YouTube and other sites to remove footage that fans had taken of the performance, despite Radiohead's demand for it to remain on the website.

At the Keilor Archaeological Site a human hearth excavated in 1971 was radiocarbon-dated to about 31, 000 years BP, making Keilor one of the earliest sites of human habitation in Australia.

At present there are 36 designated natural heritage sites of international and national importance in County Kilkenny, covering approximately 4. 5 % of the county.

Harris said of him :" At a time when European archaeologists were preoccupied with regional sites and sequences, it was he who had the vision, the knowledge and the skill to construct the first prehistory of the whole continent ( 1925 ) and the first ordered and comprehensive account of the ancient Near East ( 1928 ).

At several sites preserved hide and dung have been discovered, and are in such a state of conservation that the people who first discovered them believed they belonged to a living animal instead of an extinct species.

At sites such as Watson Brake, Frenchman's Bend, and Caney, generations of hunter-gatherers worked for hundreds of years to build and add to mound complexes.

At present 13 % of the forest zone of the EU is designated as Natura 2000 sites under the existing Birds and Habitats directive.

At that stage the public protection offered to the area was limited to two small reserves in the south, and a few local council run recreation areas at popular sites such as Wollomombi Falls, Dangars and Apsley Falls.

At both sites Kent incorporated his naturalistic approach.

At one time, there were sixteen bat roosts built in the United States and Europe, of which only two sites now remain — one in Comfort and one in the Florida Keys.

At the end of 1992 the city had issued licenses to sixty-one business, which range in size from the large Smith and Edwards variety store to small businesses operating from home sites.