Study Objectives To investigate (1) how many nights of sleep diary entries are required for reliable estimates of five sleep-related outcomes (bedtime, wake time, sleep onset latency [SOL], sleep duration, and wake after sleep onset [WASO]) and (2) the test-retest reliability of sleep diary estimates of school night sleep across 12 weeks. Methods Data were drawn from four adolescent samples (...

The Arabian carpet shark, Chiloscyllium arabicum is endemic to the Gulf and northern Sea. aim of this work study reproduction maturity species. A total 87 males 139 females, including 19 egg-bearing individuals collected from bottom set longline fisheries in Saudi waters between October 2017 February 2019, were examined. size at 50% was estimated as 62.3 62.5 cm length (TL) for respectively. Ch...

The human population is rising and will soon reach 9 billion people. In parallel, the demand for animal protein is increasing and with it is the threat of zoonotic diseases. We must therefore be on our guard. The close association of people with animals promotes the opportunity for zoonotic infections and real danger may arise when animals are imported with no health background. Therefore, it i...

We selected a sample of a dozen blazars which are the prime candidates for simultaneous multi-wavelength observing campaigns in their outburst phase. We searched for optical outbursts, intra-day variability and short term variability in these blazars. We carried out optical photometric monitoring of nine of these blazars in 13 observing nights during our observing run October 27, 2006 − March 2...

Oriental hybrid lily “Arabian Red” mother scales were stored in moist cocopeat and perlite (1:1) for 3 or 5 months at 25 ̊C. The numbers of scale bulblets per mother scale were nearly identical in two durations. Increasing storage duration promoted the growth of roots (number and length) and No. scales per scale bulblets. And, diameters of scale bulblets were more in longer storage duration (5 m...

One Thousand and Nights is a composite, transnational work, consisting of popular stories originally transmitted orally within its embedded cultures developed over several centuries. Ever since translation into European languages in the nineteenth century, or perhaps even before, it has been adapted appropriated different forms mediums thus reached corners world. This project was inspired by le...

One simple method of recognizing paper currencies has been introduced. It considers different dimensions, areas, Euler numbers, correlations between images as features. It uses Weighted Euclidean Distance for classification. The method uses the case of Saudi Arabian paper currency as a model currency under consideration. It uses fifth series of currency, issued by Saudi Arabian Monetary Agency ...