We find an l = 2 shape resonance fingerprinted in the angular distribution of cold (∼1 K) Δj rotationally inelastic collision D2 with He a single supersonic expansion. The Stark-induced adiabatic Raman passage is used to prepare (v 2, j 2) rovibrational level control spatial bond axis molecule by magnetic sublevel selection. show that rate D2–D2 relaxation nearly two orders magnitude weaker tha...

Introduction: Spreading depression (SD) is a propagating wave of depolarization followed by depression of the neuroglial activities and can modulate extracellular dopamine concentrations in the neocortex. It has been shown that the dopaminergic system plays a role in migraine. SD has been suggested as a critical phenomenon in the pathophysiology of migraine. The aim of this study was to investi...

previous studies have shown that ascorbic acid (aa) plays a crucial role in mammalian brain as avitamin and neuronal modulator. there is increasing evidence indicating that dopaminergic system and aacould affect learning and memory processes. in addition, vitamin c acts as a dopamine antagonist in thebrain. the aim of the present study was to evaluate the intra-hippocampal co-administration of ...

We consider the flat supersymmetric D2 and anti-D2 system, which follows from ordinary noncommutative D2 anti-D2 branes by turning on an appropriate worldvolume electric field describing dissolved fundamental strings. We study the strings stretched between D2 and anti-D2 branes and show explicitly that the would-be tachyonic states become massless. We compute the string spectrum and clarify the...

in this investigation wer studied the effect of dopaminergic system on the conflict behavior in rat, using vogel’s test. the related drugs were injected intraperitonealy (ip), and produced the following results:diazepam at doses of 0.5 and 1 mg/kg increased the lick –shock responses in the vogel’s thest. quinpirole (d2-agnosit), at doses of 0.1 and 10 mg/kg, increased the confict responses, whe...