On acetolysis resistant structures in the Orchidaceae— why fossil record of orchid pollen is so rare

the effect of the record infancy in crimilly acts of guilties (in karaj city)

چکیده یکی از مهمترین دغدغه های بزرگ جوامع بشری، از دیر باز تا کنون که ذهن پژوهشگران و متخصصان بهداشت روانی و اجتماعی و دولتها رابه خود مشغول داشته، مسأله ی بزهکاری می باشد. شناخت کامل پدیده ی بزهکاری و بزهکار، علل وعوامل سقوط یک انسان، چگونگی درمان وی و درنهایت پیشگیری ازبزهکاری ودریک کلام سالم سازی یک جامعه، رسالت عظیم، انسانی ومقدسی می باشد که با بررسی شخصیت مجرم یعنی[ انسانی که تحت شرای...

O10: Why Preschool Education Programs Is So Important

Neurological development is largely a result of the learning that takes place starting at birth and during the earliest years of life. Child Care and Preschool Education Programs are key to predicting ultimate success in school and life. Children who attend preschool or other early education programs have enhanced cognitive, verbal, and social development (which is maintained into the first few...

Molecular rectification: why is it so rare?

Although conductance measurements of single molecule and few molecules junctions are currently being reported, there is a striking rarity of molecular rectification in these reports. Molecular rectification can be defined as the absence of inversion symmetry, IðV Þ 1⁄4 Ið V Þ, where I and V are the measured current and applied voltage. In molecular junctions of the form metal/molecule/metal, th...

The Health Record - why is it so hard?

the role of task-based techniques on the acquisition of english language structures by the intermediate efl students

this study examines the effetivenss of task-based activities in helping students learn english language structures for a better communication. initially, a michigan test was administered to the two groups of 52 students majoring in english at the allameh ghotb -e- ravandi university to ensure their homogeneity. the students scores on the grammar part of this test were also regarded as their pre...