نتایج جستجو برای: αα
تعداد نتایج: 184 فیلتر نتایج به سال:
Resonant enhancement of nuclear reactions as a possible solution to the cosmological lithium problem
There is a significant discrepancy between the current theoretical prediction of the cosmological lithium abundance, mostly produced as Be during the Big Bang, and its observationally inferred value. We investigate whether the resonant enhancement of Be burning reactions may alleviate this discrepancy. We identify one narrow nuclear level in B, E5/2+ ≃ 16.7 MeV that is not sufficiently studied ...
Background: Multi-drug resistance among the pathogenic bacteria poses a serious threat to public health. Nanoparticles are one of the most effective therapeutic agents. Zinc oxide nanoparticles (ZnO NPs) are well known antimicrobial agents and are regarded as nontoxic and bio-safe. The present study aims to investigate the antimicrobial effect of ZnO NPs against the bacterial strains i.e. Klebs...
The aim of this paper is to study certain quasivarieties of left ample monoids. Left ample monoids are monoids of partial one–one mappings of sets closed under the operation α 7→ αα−1. The idempotents of a left ample monoid form a semilattice and have a strong influence on the structure of the monoid; however, a left ample monoid need not be inverse. Every left ample monoid has a maximum right ...
Haemoglobin (Hb)-based oxygen carriers are under consideration as oxygen therapeutics. Their effect on apoptosis is critical, because the onset of pro-apoptotic pathways may lead to tissue damage. MP4OX, a polyethylene glycol-conjugated human Hb preserves the baseline level of neuron apoptosis with respect to sham. Here we develop a method for measuring Hb extravasation in brain. We exchange tr...
The crude oils from the reservoirs of Mela-01 and Mela-04 wells located in Kohat Basin, Pakistan, were geochemically analyzed to evaluate origin, depositional conditions, thermal maturity rock units possible facies which these sourced. Gas chromatography-mass spectrometry (GC-MS) was performed on samples obtain biomarker non-biomarker parameters. Analyzed parameters, including carbon preference...
Rarely, myelodysplastic syndrome (MDS) is complicated by an acquired form of α thalassemia (ATMDS) characterized by hypochromic, microcytic, anisopoikilocytic red cells with hemoglobin H (HbH) inclusions. Acquired mutations in ATRX, a chromatin remodelling gene, have recently been found in 12 patients with typical features of ATMDS, but have not been detected in MDS cases with similar red cell ...
BACKGROUND/AIMS Periodontitis with bone resorption is caused by inflammatory reactions to bacterial infection. We recently reported that electromagnetic wave irradiation (EMWI) has bactericidal effects. However, the effects of EMWI on periodontal tissues remain unclear. This study was aimed to investigate the effects of EMWI on osteoblasts. METHODS Osteoblastic cells MC3T3-E1 were treated wit...
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