مصرف رسانه، دین‌داری و تغییرات در ارزش‌های خانواده: پژوهشی در شهر سمنان

Degenerate Four Wave Mixing in Photonic Crystal Fibers

In this study, Four Wave Mixing (FWM) characteristics in photonic crystal fibers are investigated. The effect of channel spacing, phase mismatching, and fiber length on FWM efficiency have been studied. The variation of idler frequency which obtained by this technique with pumping and signal wavelengths has been discussed. The effect of fiber dispersion has been taken into account; we obtain th...

اثر بربرین در تنظیم آستروسیتهای Gfap+ ناحیه هیپوکمپ موشهای صحرایی دیابتی شده با استرپتوزوتوسین

Background: Diabetes mellitus increases the risk of central nervous system (CNS) disorders such as stroke, seizures, dementia, and cognitive impairment. Berberine, a natural isoquinolne alkaloid, is reported to exhibit beneficial effect in various neurodegenerative and neuropsychiatric disorders. Moreover astrocytes are proving critical for normal CNS function, and alterations in their activity...

اثر بربرین در تنظیم آستروسیتهای Gfap+ ناحیه هیپوکمپ موشهای صحرایی دیابتی شده با استرپتوزوتوسین

Background: Diabetes mellitus increases the risk of central nervous system (CNS) disorders such as stroke, seizures, dementia, and cognitive impairment. Berberine, a natural isoquinolne alkaloid, is reported to exhibit beneficial effect in various neurodegenerative and neuropsychiatric disorders. Moreover astrocytes are proving critical for normal CNS function, and alterations in their activity...

نقش دینداری و رسانه ها در پیش بینی هویت ملی نوجوانان و جوانان شهر تهران

نقش دینداری و رسانه ها در پیش بینی هویت ملی نوجوانان و جوانان شهر تهران

رابطه دینداری فرد، خانواده و اعتقاد به پیامدهای مصرف مواد با میزان مصرف مواد مخدر

Objective: The purpose of this research was to investigate the relationship between individual and family religiosity with substance abuse. In other side because of the importance of prevention and the role of people beliefs about the causes of substance use/ non-use in this area, the relationship between (university) students’ beliefs about drug and their consequences with amount of the substa...