DNA barcode assessment and population structure of aphidophagous hoverfly Sphaerophoria scripta : Implications for conservation biological control

diagnostic and developmental potentials of dynamic assessment for writing skill

این پایان نامه بدنبال بررسی کاربرد ارزیابی مستمر در یک محیط یادگیری زبان دوم از طریق طرح چهار سوال تحقیق زیر بود: (1) درک توانایی های فراگیران زمانیکه که از طریق برآورد عملکرد مستقل آنها امکان پذیر نباشد اما در طول جلسات ارزیابی مستمر مشخص شوند; (2) امکان تقویت توانایی های فراگیران از طریق ارزیابی مستمر; (3) سودمندی ارزیابی مستمر در هدایت آموزش فردی به سمتی که به منطقه ی تقریبی رشد افراد حساس ا...

بررسی زیست شناسی مگس(Sphaerophoria scripta ( Dip.: Syrphidaeدر شرایط آزمایشگاهی

Changes in Human Population Structure: Implications for Biodiversity Conservation

Human population size and growth have been recognized as important factors affecting biodiversity, but the impacts of population structural changes on biodiversity are not clear. In this paper, we made the first attempt to link human population structural changes with implications for biodiveristy, using Wolong Nature Reserve (southwestern China) for the endangered giant panda as a case study. ...

Population genetic structure of Camellia nitidissima (Theaceae) and conservation implications

Camellia nitidissima Chi (Theaceae), with its golden-yellow flowers, is a famous ornamental species. Due to deforestation and collection of seedlings, its natural populations have receded greatly in recent decades. Genetic diversity and genetic differentiation of the twelve extant natural populations and one ex situ conserved population of C. nitidissima in China were analyzed using inter-simpl...

development and implementation of an optimized control strategy for induction machine in an electric vehicle

in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...