Surface properties of Hall-effect thruster channel walls play an important role in the performance and lifetime of the device. Physical models of near-wall effects are beginning to be incorporated into thruster simulations, and these models must account for evolution of channel surface properties due to thruster operation. Results from this study show differences in boron nitride channel surfac...

Replant disease (RD) severely affects apple production in propagation tree nurseries and in fruit orchards worldwide. This study aimed to investigate the effects of soil disinfection treatments on plant growth and health in a biotest in two different RD soil types under greenhouse conditions and to link the plant growth status with the bacterial community composition at the time of plant sampli...

Phytocystatins are a well-characterized class of naturally occurring protease inhibitors that prevent the catalysis of papain-like cysteine proteases. The action of cystatins in stress tolerance has been studied intensively, but relatively little is known about their functions in plants during leaf senescence. Here, we examined the potential roles of the apple cystatin, MpCYS4, in leaf photosyn...

In the fission yeast Schizosaccharomyces pombe, cdc2 function is required both in G1 to enter the cell cycle and in G2 to initiate mitosis. In higher eukaryotes, these functions appeared to be shared between several cdc2-like genes including CDK2. Temperature-sensitive mutations in S. pombe cdc2 that arrest the cell cycle in both G1 and G2 phases are not complemented by CDK2. We have used S. po...

الوقف هو تنمية للحياة الاجتماعية والاقتصادية، وتحقيق لمبدأ التكافل الاجتماعي، فقد عُني من الشرع أيما عناية، فتكفلت بحمايته وصيانته، وتنفيذ أحكامه وشروطه، ولهذه الأهمية والمكانة جاءت هذه الورقة لتبين عدداً الأمور التي تتعلق بالوقف كبيع واستبداله في حال انتفاء المنفعة منها وهلاكها، حيث سأتحدث فيه عن حكم بيع عند الفقهاء وقانون الأوقاف لإمارة الشارقة، والحالات يجوز فيها الوقف، والتي لا البيع، وأفصل ا...