نتایج جستجو برای: na ultra
تعداد نتایج: 324331 فیلتر نتایج به سال:
BACKGROUND Selection of amino acid substitutions associated with resistance to nucleos(t)ide-analog (NA) therapy in the hepatitis B virus (HBV) reverse transcriptase (RT) and their combination in a single viral genome complicates treatment of chronic HBV infection and may affect the overlapping surface coding region. In this study, the variability of an overlapping polymerase-surface region, cr...
Paeonia delavayi, an endemic species in southwestern China, has been widely used as a traditional remedy for cardiovascular, extravasated blood, stagnated blood and female diseases in traditional Chinese medicine (TCM). However, there are no reports on the anti-influenza virus activity of this species. Here, the anti-influenza virus activity of P. delavayi root extracts was first evaluated by a...
Ultra-processed foods (UPFs) are characterized by the presence of markers ultra-processing (MUP), either additives (A-MUP) or non-additive ingredients (NA-MUP). The present study aims to characterize MUP profile approximately 22,000 UPFs, representative assortments in French supermarkets. UPFs were ranked according Siga classification within five UPF technological groups, from C01 C3, depending...
In this paper, in addition to some elementary facts about the ultra-groups, which their structure based on the properties of the transversal of a subgroup of a group, we focus on the relation between a group and an ultra-group. It is verified that every group is an ultra-group, but the converse is not true generally. We present the conditions under which, for every normal subultra-group of an u...
dermoid cyst is a tumor arises due to embryogenesis impairment. it accounts for less than 0.3 percent of all intracranial masses. a 35 years old man presented with a tonic clonic seizure without any significant past history of seizure. physical examination and imaging propounded epidermoid cyst as diagnosis. the patient had a craniotomy and cyst was totally removed. operative findings and histo...
An ultra-low quiescent current low-dropout regulator with small output voltage variations and improved load regulation is presented in this paper. It makes use of dynamically-biased shunt feedback as the buffer stage and the LDO regulator can be stable for all load conditions. The proposed structure also employs a momentarily current-boosting circuit to reduce the output voltage to the normal v...
We demonstrate a 60µm core diameter Yb free Er-La-Al doped single-trench fiber having a 0.038 ultra-low-NA, fabricated using conventional MCVD process in conjunction with solution doping technique. Numerical simulations predict an effective single mode operation with effective area varying from 1,820µm(2) to 1,960µm(2) (taking bend-induced modal distortion into account) for different thicknesse...
CLINICALCHEMISTRY,Vol. 30, No. 10, 1984 1703 13. Cornelis R, Versieck J, MesaL, et al. The ultra-trace element vanadium in human serum. Biol Trace Element Res 3, 257-263 (1981). 14. Bello-Reuss EN, Grady TP, Mazumbar DC. Serum vanadium levels in chronic renal disease. Ann Intern Med 91, 743 (1979). 15. Prost EL, Hunt DP, Walderhaug MD, et al. Vanadium compounds in relation to inhibition of sodi...
We review recent experimental progress on the saturation problem in metallic quantum wires. In particular, we address the influence of magnetic impurities on the electron phase coherence time. We also present new measurements of the phase coherence time in ultra-clean gold and silver wires and analyse the saturation of tf in these samples, cognizant of the role of magnetic scattering. For the c...
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