نتایج جستجو برای: aim and nbo
تعداد نتایج: 16831169 فیلتر نتایج به سال:
BACKGROUND AND PURPOSE Recent studies suggest that normobaric oxygen therapy (NBO) is neuroprotective in acute ischemic stroke. METHODS We performed multivoxel magnetic resonance spectroscopic imaging and diffusion/perfusion MRI in patients with stroke treated with NBO or room air. Imaging was performed before, during, and after therapy. RESULTS Voxel-based analysis showed excellent correla...
the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...
پیوند هالوژنی، برهمکنشی است که بین یک هالید (x) در یک مولکول (r?x) و یک جایگاه غنی از الکترون در نزدیکی باز لوئیس(y?r’) اتفاق می افتد. پیوند های هیدروژنی و هالوژنی خصوصیات مشابهی دارند. انرژی پیوند های هالوژنی مجزا ( exb) در آنالوگ های جفت باز های dna ( a-x-t، g-x-c) با استفاده از مقادیر چگالی الکترونی در نقاط بحرانی پیوند ها (bcp) بدست آمده از روش اتم ها در مولکول ها (aim) در سطحb3lyp/ 6-31g* ...
INTRODUCTION Ischemic stroke is a global burden that contributes to the disability and mortality of millions of patients. This study aimed to evaluate the efficacy of combined MB (methylene blue) and NBO (normobaric hyperoxia) therapy in experimental ischemic stroke. METHODS Rats with transient (60 min) MCAO (middle cerebral artery occlusion) were treated with: (1) air + vehicle (N = 8), (2) ...
Background: Shorter hospitalisation after childbirth raises new challenges in the transition to parenthood. Aim. This paper reports a study designed to identify first-time mothers’ experience with The Neonatal Behavioral Observation System (NBO) as a guiding model. Method: A phenomenological qualitative study sampling four first-time mothers who received guidance from the NBO-specialist nurse t...
BACKGROUND AND PURPOSE Normobaric oxygen (NBO) therapy may be neuroprotective in acute ischemic stroke. However, how NBO may affect intracerebral hemorrhage is unclear. We tested NBO in a rat model of striatal intracerebral hemorrhage. METHODS Intracerebral hemorrhage was induced by stereotactic injection of collagenase Type VII (0.5 U) into the right striatum of male Sprague-Dawley rats. One...
INTRODUCTION Postpartum depression (PPD) is a prevalent disorder. Studying the factors related to PPD will help to identify families at risk and provide preventive interventions. This can in turn improve the developmental trajectories for the children. Several previous studies have investigated risk factors for PPD. However, few studies have focused on cognitive vulnerability factors. The first...
We present detailed theoretical studies of the H-bonded complexes formed from interaction between 5-fluorouracil and various six-membered cyclic nitrosamine compounds. In this study, an investigation on intermolecular interactions in X-NU (X = CH2, SiH2,BH, AlH, NH, PH, O and S) complexes is carried out using density functional theory. The calculations are conducted on B3L...
in this thesis our aim is to construct vector field in r3 for which the corresponding one-dimensional maps have certain discontinuities. two kinds of vector fields are considered, the first the lorenz vector field, and the second originally introced here. the latter have chaotic behavior and motivate a class of one-parameter families of maps which have positive lyapunov exponents for an open in...
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