The complete error-in-variables-model (EVM) framework, consisting of both design of experiments and parameter estimation stages, is applied to the terpolymerization of 2-acrylamido-2-methylpropane sulfonic acid (AMPS, M1), acrylamide (AAm, M2) and acrylic acid (AAc, M3). This water-soluble terpolymer has potential for applications in enhanced oil recovery, but the associated terpolymerization k...

The reactivity of the protonated and hydroxylated sphalerite (1 1 0) surface with xanthate was simulated using the density functional theory (DFT). The difference between the energy of the lowest unoccupied molecular orbital of the sphalerite surface and the energy of the highest occupied molecular orbital of xanthate (  was used to compare the reaction capability of xanthate with fresh and fun...

OBJECTIVE To examine associations between autonomic nervous system and adrenocortical reactivity to laboratory stressors and buccal cell telomere length (BTL) in children. METHODS The study sample comprised 78 children, aged 5 to 6 years, from a longitudinal cohort study of kindergarten social hierarchies, biologic responses to adversity, and child health. Buccal cell samples and reactivity m...

background due to its progressive nature in all aspects of life, addiction endangers the health of individuals, families and the society. objectives the purpose of this study was to determine the role of self-regulation and affective control in predicting interpersonal reactivity of drug addicts. materials and methods this research is a correlation study. the statistical population of this stud...

the chick model is a useful research tool to investigate the development of the enteric nervous system (ens). recognition of appropriate markers for detection of chick enteric ganglia will allow better utilization of this model to study abnormalities of the ens. this study aimed to validate a set of antibodies for avian ens studies on wax sections. the specimens were taken from jejunum and colo...

BACKGROUND AND PURPOSE Time-dependent changes in individual platelet reactivity have been detected in patients with coronary artery disease. Therefore, we sought to evaluate the time-dependent changes in platelet reactivity to aspirin during the acute stage after ischemic stroke and the clinical implications of variable patient responses to aspirin in acute ischemic stroke. METHODS We conduct...

Cross-sectional studies suggest that impaired cerebral haemodynamics is associated with symptomatic status in patients with carotid stenosis and occlusion, but there is relatively little prospective data confirming this association. Transcranial Doppler ultrasonography was used to determine the reactivity of the middle cerebral artery to 8% carbon dioxide in air in 107 patients with either caro...

background : antivenom is still widely used in the treatment of envenomation as there are no vaccines or other effective agents available against animal venoms. recently, neurotoxins named birtoxin family have been described from parabuthus transvaalicus and androctonus crassicauda. the aim of the present study was to test the antibirtoxin antibodies for their ability to neutralize the lethal e...

objective(s): brucella spp. are facultative intracellular pathogens which can stay alive and multiply in professional and nonprofessional phagocytes. immunity against brucella melitensis involves antigen-specific cd4+ and cd8+ t-cells activation and humoral immune responses. due to negative aspects of live attenuated vaccines, much attention has been focused on finding brucella-protective antig...