the present study aimed at investigating the possible impact ofzone of proximal development (zpd) on the learners’ performance. forty-sixiranian university students participated in this study by taking two types of readingcomprehension tests (i.e., the main idea and wh-question type). the researchersused the winstep program to analyze the data and estimate the learners’ raschmeasure in pre, pos...

Background: Artificial oocyte activation (AOA) has important implications in assisted reproductive technique (ART) with particular importance in somatic cell nuclear transfer (SCNT). Parthenogenesis activation using zona- free oocytes offers an alternative model that could be applied to develop protocols for the activation of reconstructed embryos for cloning. Materials and Methods: To establis...

The only species of the water mite genus Lebertia so far recorded from Himalayan mountains, L. orientalis Walter, 1928, known a single deutonymph, is designated as nomen dubium. Five new to science are described: (L.) himalayaensis n. sp., khatrii disparilis (Mixolebertia) veeli sp. and (Septlebertia) altomontana For two China we have following remarks: specimens by Wang et al. (2016) under nam...

background: in this experimental study, the radiographic and biomechanical characteristics of osteoperforated rabbit tibia during bone repair period were investigated. materials and methods: using dental drills, 2 mm holes were drilled at the mid-shaft of right tibia in 12 new zealand white rabbits. the left tibia was intact and selected as the control. x-rays of the left and right tibias were ...

Background: Recently, it has been found that exposure of sperm to PVP may cause submicroscopic changes in sperm structure and the sperm nucleus. The PVPinduced nuclear damage may have been due to breakdown of sperm membranes. Consequently, it is probable that exposure of sperm to PVP may impair embryo development. There are apparently no detailed reports regarding the specific effects of PVP on...

Phytoseiid mites of the tribes Kampimodromini and Typhlodromipsini collected from Serra do Espinhaço (Espinhaço range) are reported here. Two species proposed as new, Neoparaphytoseius moraesi sp. nov. Typhlodromips ovametapodalis constrictatus (El-Banhawy) is redescribed in detail including first description male female insemination apparatus. The redescription deutonymph Proprioseius gibbus M...

DYOPTYKA’s innovative solution for the reduction of speckle noise in projection displays, using a phase randomizing deformable mirror, is shown to achieve good performance both within a single 1 μs pulse duration and through sequences of such pulses.