Multicast-based data communication is an efficient communication scheme especially in multihop ad hoc networks where the MAC layer is based on one-hop broadcast from one source to multiple receivers. In this paper, we ...

A new adaptive multiple access scheme based on the theory of order statistics is introduced. The proposed algorithm employs a semi-random allocation mechanism that limits subchannel selection to the highest-gain subchannels. ...

The common amphibian toad Bufo orientalis and four species of reptiles (Scincus muscatensis, Mabuya brevicolis, Uromastyx microlepis and Diplometopon zarudnyi) were collected from five localities in the United Arab Emirates ...

The present work deals with the study on volatile compounds from the brown alga Hormophysa cuneiformis collected from the Northwest coast of Qatar on May 2002. Two extraction methods have been used: conventional hydrodistillation ...

Sinusoidal encoders provide electrical signals related to the sine and cosine of the mechanical shaft angle θ. An analog converter is described for the linearization of these signals and hence for linear computation of θ. ...

تناولت المقالة مفاهيم الرسول (صى الله عليه وسلم) حول شتى ميادين الحياة

يعد الضرر ركنا أساسيا من أركان المسئولية المدنية، فهو الذي يميز بينها وبين المسئولية الجنائية، فلا يكفي الخطأ لقيام المسئولية المدنية، وإنما يجب أن يترتب على هذا الخطأ ضرر. وإن أمكن تصور مسئولية بلا خطأ، فلا يتصور مسئولية ...

This was a retrospective cohort study to assess the effect of hypertension (HTN) among Qatari and Asian patients admitted to the Hamad General Hospital in Qatar with heart failure (HF) and to identify risk factors that ...

Four hilminth larvae from different fish hosts caught from Emirati coasts are described. Two are metacercariae related to genus Stephanostomum, type (I) and (II). Type (I) was found encycsted in body cavities of the Indian ...

Two species of monogenea of the subfamily Encotyllabinae, genus Encotyllabe were observed from Qatari fishes which collected between March and May, 2002 from 5 Khors of Qatari coastal line; Al-Odaid, al-Dhakhira, Ras Rakan, ...