Search for jet extinction in the inclusive jet-pT spectrum from proton-proton collisions at s=8 TeV

Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published articles title, journal citation, and DOI.The first search at the LHC for the extinction of QCD jet production is presented, using data collected with the CMS detector corresponding to an integrated luminosity of 10.7  fb−1 of proton-proton collisions at a center-of-mass energy of 8 TeV. The extinction model studied in this analysis is motivated by the search for signatures of strong gravity at the TeV scale (terascale gravity) and assumes the existence of string couplings in the strong-coupling limit. In this limit, the string model predicts the suppression of all high-transverse-momentum standard model processes, including jet production, beyond a certain energy scale. To test this prediction, the measured transverse-momentum spectrum is compared to the theoretical prediction of the standard model. No significant deficit of events is found at high transverse momentum. A 95% confidence level lower limit of 3.3 TeV is set on the extinction mass scale

Searches for electroweak neutralino and chargino production in channels with Higgs, Z, and W bosons in pp collisions at 8 TeV

Searches for supersymmetry (SUSY) are presented based on the electroweak pair production of neutralinos and charginos, leading to decay channels with Higgs, Z, and W bosons and undetected lightest SUSY particles (LSPs). The data sample corresponds to an integrated luminosity of about 19.5 fb(-1) of proton-proton collisions at a center-of-mass energy of 8 TeV collected in 2012 with the CMS detector at the LHC. The main emphasis is neutralino pair production in which each neutralino decays either to a Higgs boson (h) and an LSP or to a Z boson and an LSP, leading to hh, hZ, and ZZ states with missing transverse energy (E-T(miss)). A second aspect is chargino-neutralino pair production, leading to hW states with E-T(miss). The decays of a Higgs boson to a bottom-quark pair, to a photon pair, and to final states with leptons are considered in conjunction with hadronic and leptonic decay modes of the Z and W bosons. No evidence is found for supersymmetric particles, and 95% confidence level upper limits are evaluated for the respective pair production cross sections and for neutralino and chargino mass values

The method for calculation and optimization of parameters of synchronous electric machines with permanent magnets as part of the generating and driving complexes

New methodical solutions have been developed in the field of creating energy-efficient synchronous electrical machines with permanent magnets, designed to generate electrical energy as part of autonomous power plants and to drive various mechanisms

Orderly muscle activity in elimination of erythrocytes microrheological abnormalities in rats with experimentally developed obesity

Background: Difficulties of the earliest stages' detection of erythrocytes' microrheological abnormalities' development at obesity are connected with falling out of clinicians' field of view of persons with first signs of this pathology. It dictates the necessity of experimental investigations' fulfillment on laboratory animals with just developed obesity in them. Earlier in this pathology, there was shown high efficiency of non-medication impacts in relation lowering of the value of body mass and weakening of thrombocyte and vascular dysfunctions. At the same time, there is still no clarity in the question about the impact of regular exercise on erythrocytes' microrheological features at the beginning of obesity development. Methods: 91 of health male-rats of Vistar line at the age of 2.5-3 months, into the investigation. 29 animals of them had experienced no impacts and composed the control group. 62 rats had obesity developed by prescribing them cardioangionefopathogenic semisynthetic diet. Then these rats were casually divided into experimental (32 rats) group and control group (30 rats). Rats from the experimental group during 60 subsequent days experienced daily exercise on a horizontal treadmill. There were used biochemical, hematological and statistical methods of investigation. Result: As the result of obesity development the rats turned out to have steady developing increase in systolic and diastolic pressure. At regular exercise, on the treadmill, the rats were noted to have a gradual At present fundamental medicine attentively examines early development stages of different pathology and mechanisms of its realization." taking into consideration their social aspects.' Traditionally in the focus of many researchers' attention, we can find functional and rheological features of basic regular blood elements and especially - their most numerous population - erythrocytes at rather widespread at present cardio-vascular and metabolic diseases. 6th Among them, one of the leading positions is occupied by developing under the impact of genetic predisposition and way of life obesity (OB) decrease of their values during 60 days of investigation to the level of the norm. During obesity development lipids' peroxidation activated in rats' erythrocytes because of activity weakening of their antioxidant protection. On the background of muscle activity in rats with obesity the content of lipids' peroxidation products in erythrocytes progressively decreased and by the 60th day of experiment reached the control level of healthy rats. At obesity development in rats, there was found a reliable decrease of erythrocytes-discocytes quantity in blood. It was accompanied by the increase of reversibly and irreversibly changed erythrocytes' quantity in examined animals' blood. Their values were returning to control the level of healthy rats during 60 days of regular muscle activity. At obesity development in rats, there was found the quick rise of erythrocytes' sum in aggregate and these aggregates' quantity at lowering of free erythrocytes' number. Their quantity returned to control values to the end of 60 days of exercise. During experimental obesity modeling, we noticed very early in rats' blood decrease of erythrocytes-discocytes' quantity, the level rise of their reversibly and irreversibly varieties with a strengthening of their aggregative ability. It takes place in the background of the weakening of erythrocytes' antioxidant protection and activation of lipids' peroxidation in them. Regular lasting muscle activity can eliminate existing erythrocytes' microrheological features' abnormalities in rats with recently developed obesity

Effect of a combination of arterial hypertension and insulin resistance on hemostasis activity

Lasting existence of arterial hypertension in combination with insulin-resistance inevitably disturbs functioning of all the hemostasis elements. Weakening of vascular control over platelets' aggregation, hemocoagulation and fibrinolysis is noted in these conditions. Production lowering of substances with thrombo-resistant properties in vessels, increase of endothelium permeability for macromolecules, accumulation of lipoproteins in vascular wall, adhesion of platelets and leucocytes to it lie in the basis of it. Patients with arterial hypertension and insulin-resistance are characterized by platelets' activation leading to the increase of circulating platelets with changed surface structure in blood and their aggregates. In the given category of patients it is caused by the increased content of biologically active substances in platelets and number increase of different receptors on their surface, including fibrinogen. Combination of arterial hypertension with insulin-resistance inevitably disturbs functioning of coagulative component of hemostasis system - the content of fibrinogen, VII, VIII, IX factors of coagulation, von Willebrand's Factor increases in blood at activity lowering of antithrombin III, protein C and protein S. The complexity of hemostasiopathy in arterial hypertension and insulin resistance dictate the need to continue the search for therapeutic approaches which can balance thrombophilia and simultaneously affect all the components of the hemostatic system