نتایج جستجو برای: hot plate
تعداد نتایج: 150984 فیلتر نتایج به سال:
UNLABELLED To fabricate high-performance metal-halide perovskite solar cells, a thermal annealing process is indispensable in preparing high quality perovskite film. And usually such annealing is performed on hot plate. However hot-plate annealing could cause problems such as inhomogeneous heating (induced by non-tight contact between the sample and the plate), it is also not fit for large scal...
The purpose of the hot rolling mill is to make a preheated steel block thinner and longer, see Figure 1. This is done by pulling the plate through two parallel rolls mounted in the rolling mill. Due to the large forces obtained in hot rolling, the elastic de ection of the rolling mill is of the same order of magnitude as the plate thickness. Variations in the rolling force caused by variations ...
Present study reports analgesic activity of petroleum ether, chloroform, ethyl acetate and methanolic extracts of leaves and seeds of Trigonella foenum-graecum Linn. (Fabaceae) using hot plate method for evaluation of central analgesic activity and acetic acid induced writhing test for evaluation of peripheral analgesic activity in mice. All the extracts of Trigonella foenum-graecum ...
Background and purpose : Dextromethorphan is a non-competitive NMDÂ receptor antagonist in the glutamatergic system with over 47 years of clinical usage experience as an over-the counter antitussive drug. We previously demonstrated that dextromethorphan modulates the pain threshold in the mouse acetic acid (0.6%,intraperitonealy)-induced writhing test (a tonic and chemical model for chronic p...
Objective(s):Reduction of pharmacological effectiveness or tolerance appears following repeated administration of many analgesic drugs. We investigated tolerance to anti-nociceptive effects of orexin-A, an endogenous potent analgesic peptide using the hot-plate test.Materials and Methods:Orexin-A was microinjected ICV (intracerebroventricular) with an interval of 12 hr for 7 continuous days and...
the antinociceptive effect of elaeagnus angustifolia fruits was studied in mice. the antinociceptive effect of ethanolic and boiling water extracts was studied using two thermal stimuli, the hot-plate and tail-flick tests. the intraperitoneal and oral administration of the ethanolic extract of seed 0.75-7.00 g/kg), but not pericarp and medulla had significant antinociceptive activity in the hot...
Background and Objectives: There have been many studies done to recognize the mechanism of controllingpain. However, there are still a lot of un-answered questions about initiatory nervous centers in expressing nociceptive behaviors and pain modulation. The nuclei ofparagigantocellularislateralis (LPGi) participate in different functions like adjustment of blood circulation, withdrawal syndrome...
Introduction: The application of herbal plants instead of synthetic drugs is increasing in recent years because of their lower side-effects and high varieties of efficient components. The aim of the present study was to evaluate the antinociceptive effects of hydroalcholic extract of grape seed using hot plate and formalin test. Methods: This experimental study has been done on 56 NMRI male...
Background and Objective: Food deprivation increases the expression of orexin-1 receptor gene in the hypothalamus. On the other hand, food deprivation induces analgesia and orexin has a fundamental and well known role in pain modulation. This study aimed to determine the role of orexin receptor 1 antagonist in analgesic effect of acute food deprivation (12 h) by hot plate test in male rats. ...
In this study, we examined whether Sprague-Dawley rats obtained from two different vendors, Harlan and Sasco, differ with respect to the types of alpha-2 adrenoceptors in the spinal cord that mediate antinociception. This hypothesis was tested using two alpha-2 adrenoceptor agonists, dexmedetomidine and ST-91, which are relatively selective for alpha-2A and alpha-2B adrenoceptors, respectively,...
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