Huge amount of Arabic information and documents are widely spread on the Internet. The accuracy of searching for Arabic documents, as well as other documents, depends on the terms used by the user in the input query to retrieve relevant results and to reduce irrelevant ones. Most results returned are relevant to the query terms not to its meaning. For example, searching for “ ت ص ل ب ا ل ش ر ا ...

کچ ی هد هکبش هکبش رگسح یاه رگسح زا یا هنیزه مک و دودمح یژرنا اب ،کچوک یاه دنتسه یا یم شخپ رظن دروم هقطنم رد هک هداد ات دنوش عجم طیمح زا ار ییاه شزادرپ یارب و هدونم یروآ یزکرم هرگ هب ١ دننک لاسرا . م نینچهم ی هب و هداد صیخشت طیمح رد ار یدادخر عوقو دنناوت دنناسرب یزکرم هرگ علاطا . هکبش هنوگنیا ریخا یالهاس رد هنیمز رد اه یاهدربراک فلتمخ یاه هدرک ادیپ یدایز دنا . زا دنترابع اهدربراک نیا هلجم زا...

We introduce a new variant of the game of Cops and Robbers played on graphs, where the robber is invisible unless outside the neighbor set of a cop. The hyperopic cop number is the corresponding analogue of the cop number, and we investigate bounds and other properties of this parameter. We characterize the cop-win graphs for this variant, along with graphs with the largest possible hyperopic c...

We consider the game of Cops and Robber played with infinitely many cops on countable graphs. We give a sufficient condition— the strongly 1-e.c. property—for the cop number to be infinite. The cop density of a finite graph, defined as the ratio of the cop number and the number of vertices, is investigated. In the infinite case, the limits of the cop densities of chains of finite graphs are stu...

The cop-rep region of plasmid pE194 contains two tandem structural genes, cop and repF, as well as the plus and minus origins of replication. The two structural genes comprise an operon whose expression is repressed by the binding of Cop protein to a 28-bp inverted complementary repeat sequence that overlaps the cop-repF promoter. From its position relative to the promoter and the experimentall...

The yeast Dsl1p vesicle tethering complex, comprising the three subunits Dsl1p, Dsl3p, and Tip20p, is stably associated with three endoplasmic reticulum-localized Q-SNAREs and is believed to play a central role in the tethering and fusion of Golgi-derived COP-I transport vesicles. Dsl1p also interacts directly with COP-I subunits. We now show that binding of Dsl1p to COP-I subunits involves bin...

Extensive variations of colloid osmotic pressure (COP) measured in the priming as well as during infant cardiopulmonary bypass motivated us to audit clinical and laboratory data to identify the risk factors for low COP at the end of bypass. Data of 73 consecutive infant patients with body weight <10 kg, who underwent elective, first time open-heart surgery between March 2005 and December 2006 w...