نتایج جستجو برای: oes instrument perkinelmer
تعداد نتایج: 86380 فیلتر نتایج به سال:
The aim of the study was to identify the causes underlying overgrowth of incisors in chinchillas through an analysis of selected plasma electrolyte concentrations, with particular consideration of minerals involved in the formation of osseous tissue, i.e., Ca, Mg, and P. The analysis involved 40 female standard chinchillas managed in a commercial farm system, aged 2 to 4 years, divided into two...
burnout is a response to the chronic work stress which is prevalent mostly among the people who do people job, like teaching. the purpose of this study was to develop a valid and reliable instrument that can measure burnout in foreign language teachers. although some widely used instruments were developed before which measured burnout in teachers, a specific instrument which include specific sy...
OBJECTIVE The aim of this in vitro study was to evaluate the antimicrobial effect of oregano extract solution (OES) against Enterococcus faecalis within root canals and dentin tubules, and its effect on smear layer. MATERIALS AND METHODS A total of 180 human maxillary central incisors was selected. After removal of coronal part of the teeth, root canals were prepared using ProTaper rotary fil...
Polybrominated diphenyl ethers (PBDEs), commonly used flame retardants, are under scrutiny as a result of their global presence and rapid bioaccumulation. Legislative and commercial groups have initiated programs to reduce or eliminate specific PBDE congeners as a result of their potential health threat. This application note will demonstrate a gas chromatography/mass spectrometry (GC/MS) analy...
The electric field in streamer discharges in air can be easily determined by the ratio of luminous intensities emitted by N2(C 3 u) and N2(B 2 + u ) if the steady-state assumption of the emitting states is fully justified. At ground pressure, the steady-state condition is not fulfilled and it is demonstrated that its direct use to determine the local and instantaneous peak electric field in the...
BACKGROUND AND OBJECTIVES Occupational exposures (OEs) to blood and body fluids (BBFs) pose significant risk of transmission of blood-borne infections (BBIs) to health care personnel (HCP) and are grossly underreported. We aimed to study the awareness of BBIs and their prevention, burden of OEs, assess factors contributing to them and their poor reporting and assess the practices for their prev...
The odd-even staggering (OES) of nuclear masses has been recognized since the early days of nuclear physics. It manifests itself in the fact that the binding energy of a system with an odd particle number is lower than the arithmetic mean of the energies of the two neighboring even-particle-number systems. Häkkinen et al. 1, using the density-functional theory, argued that light alkali-metal cl...
Chronic saponin treatment attenuates damage to the pancreas in chronic alcohol-treated diabetic rats
BACKGROUND Chronic heavy alcohol consumption may raise the risk of developing type 2 diabetes mellitus. Saponins inhibit apoptosis of pancreatic islet cells and reduce lipid parameters. The present study was designed to investigate the effect of saponin on chronic ethanol-treated diabetic rats. METHODS Long-Evans Tokushima Fatty (LETO) and Otsuka Long-Evans Tokushima Fatty (OLETF) rats were p...
Matrix effects were evaluated on the determination of Dy, Eu and Yb used as sheep faecal markers by inductively coupled plasma optical emission spectrometry (ICP-OES) with axiallyand radially-viewed configurations. The samples were prepared with microwave-assisted acid digestion using an oven with closed vessels. The analytical performances of the two ICP-OES instruments were compared using Mg ...
Discrete dental traits are used as proxies for biological relatedness among modern human populations and for alpha taxonomy and phylogeny reconstruction within the hominin clade. We present a comparison of the expression of lower molar dental traits (cusp 6, cusp 7, trigonid crest pattern, and protostylid) at the enamel-dentine junction (EDJ) in a variety of extant and fossil hominoid taxa, in ...
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