716 research outputs found
Ligand-induced type II interleukin-4 receptor dimers are sustained by rapid re-association within plasma membrane microcompartments
Biological and Soft Matter Physic
Gauge Theories on a 2+2 Anisotropic Lattice
The implementation of gauge theories on a four-dimensional anisotropic
lattice with two distinct lattice spacings is discussed, with special attention
to the case where two axes are finely and two axes are coarsely discretized.
Feynman rules for the Wilson gauge action are derived and the renormalizability
of the theory and the recovery of the continuum limit are analyzed. The
calculation of the gluon propagator and the restoration of Lorentz invariance
in on-shell states is presented to one-loop order in lattice perturbation
theory for on both 2+2 and 3+1 lattices.Comment: 27 pages, uses feynmf. Font compatibility adjuste
ĐĐŸĐ»Đ»Đ”ĐșŃĐžŃ ĐșŃĐ»ŃŃŃŃ ĐŒĐžĐșŃĐŸĐČĐŸĐŽĐŸŃĐŸŃлДĐč IBASU-A â ĐżĐŸŃĐ”ĐœŃОалŃĐœŃĐč ŃĐ”ŃŃŃŃ Đ±ĐžĐŸŃŃŃŃŃ ĐŽĐ»Ń ĐżŃĐŸĐžĐ·ĐČĐŸĐŽŃŃĐČĐ° Đ±ĐžĐŸĐŽĐžĐ·Đ”Đ»Ń
Đ Đ°ŃŃĐŒĐŸŃŃĐ”ĐœŃ ŃĐŸŃŃĐŸĐČŃĐ” паŃĐ°ĐŒĐ”ŃŃŃ Đž ĐżŃĐŸĐŽŃĐșŃĐžĐČĐœĐŸŃŃŃ ĐșŃĐ»ŃŃŃŃ ĐșĐŸĐ»Đ»Đ”ĐșŃОО ĐŒĐžĐșŃĐŸĐČĐŸĐŽĐŸŃĐŸŃлДĐč IBASU-A, ĐŸĐżŃĐ”ĐŽĐ”Đ»Đ”ĐœŃ ĐżĐ”ŃŃпДĐșŃĐžĐČĐœŃĐ” ŃŃĐ°ĐŒĐŒŃ-ĐżŃĐŸĐŽŃŃĐ”ĐœŃŃ Đž ŃĐŸĐ·ĐŽĐ°ĐœĐ° ĐŸŃЎДлŃĐœĐ°Ń ĐșĐŸĐ»Đ»Đ”ĐșŃĐžŃ ĐșĐ°Đș ĐżĐŸŃĐ”ĐœŃОалŃĐœŃĐč ŃĐ”ŃŃŃŃ Đ±ĐžĐŸĐ»ĐŸĐłĐžŃĐ”ŃĐșĐŸĐłĐŸ ŃŃŃŃŃ ĐŽĐ»Ń ĐżŃĐŸĐžĐ·ĐČĐŸĐŽŃŃĐČĐ° Đ±ĐžĐŸĐŽĐžĐ·Đ”Đ»Ń.Growth characteristics and productivity of cultures of the Microalgal Culture Collection IBASU-A have been analysed. Promising strains-producers have been determined. Special culture collection as potential resource of feedstock for biodiesel has been created
The Self Model and the Conception of Biological Identity in Immunology
The self/non-self model, first proposed by F.M. Burnet, has dominated immunology for sixty years now. According to this model, any foreign element will trigger an immune reaction in an organism, whereas endogenous elements will not, in normal circumstances, induce an immune reaction. In this paper we show that the self/non-self model is no longer an appropriate explanation of experimental data in immunology, and that this inadequacy may be rooted in an excessively strong metaphysical conception of biological identity. We suggest that another hypothesis, one based on the notion of continuity, gives a better account of immune phenomena. Finally, we underscore the mapping between this metaphysical deflation from self to continuity in immunology and the philosophical debate between substantialism and empiricism about identity
Social support, social network size, social strain, stressful life events, and coronary heart disease in women with type 2 diabetes: A cohort study based on the womenâs health initiative
We studied associations between social support, social network size, social strain, or stressful life events and risk of coronary heart disease (CHD) in postmenopausal women with type 2 diabetes. RESEARCH DESIGN AND METHODS From the Womenâs Health Initiative, 5,262 postmenopausal women with type 2 diabetes at baseline were included. Cox proportional hazards regression models adjusted for demographics, depressive symptoms, anthropometric variables, and lifestyle factors were used to examine associations between social factors and CHD. RESULTS A total of 672 case subjects with CHD were observed during an average 12.79 (SD 6.29) years of follow-up. There was a significant linear trend toward higher risk of CHD as the number of stressful life events increased (P for trend 5 0.01; hazard ratio [HR] [95% CI] for the third and fourth quartiles compared with first quartile: 1.27 [1.03â1.56] and 1.30 [1.04â1.64]). Being married or in an intimate relationship was related to decreased risk of CHD (HR 0.82 [95% CI 0.69â0.97]). CONCLUSIONS Among postmenopausal women with type 2 diabetes, higher levels of stressful life events were associated with higher risk of CHD. Experience of stressful life events might be considered as a risk factor for CHD among women with type 2 diabetes
Measurement of the Atmospheric Muon Spectrum from 20 to 3000 GeV
The absolute muon flux between 20 GeV and 3000 GeV is measured with the L3
magnetic muon spectrometer for zenith angles ranging from 0 degree to 58
degree. Due to the large exposure of about 150 m2 sr d, and the excellent
momentum resolution of the L3 muon chambers, a precision of 2.3 % at 150 GeV in
the vertical direction is achieved.
The ratio of positive to negative muons is studied between 20 GeV and 500
GeV, and the average vertical muon charge ratio is found to be 1.285 +- 0.003
(stat.) +- 0.019 (syst.).Comment: Total 32 pages, 9Figure
Ligand-induced type II interleukin-4 receptor dimers are sustained by rapid re-association within plasma membrane microcompartments
Biological and Soft Matter Physic
Measurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment
This paper describes an analysis of the angular distribution of W->enu and
W->munu decays, using data from pp collisions at sqrt(s) = 7 TeV recorded with
the ATLAS detector at the LHC in 2010, corresponding to an integrated
luminosity of about 35 pb^-1. Using the decay lepton transverse momentum and
the missing transverse energy, the W decay angular distribution projected onto
the transverse plane is obtained and analysed in terms of helicity fractions
f0, fL and fR over two ranges of W transverse momentum (ptw): 35 < ptw < 50 GeV
and ptw > 50 GeV. Good agreement is found with theoretical predictions. For ptw
> 50 GeV, the values of f0 and fL-fR, averaged over charge and lepton flavour,
are measured to be : f0 = 0.127 +/- 0.030 +/- 0.108 and fL-fR = 0.252 +/- 0.017
+/- 0.030, where the first uncertainties are statistical, and the second
include all systematic effects.Comment: 19 pages plus author list (34 pages total), 9 figures, 11 tables,
revised author list, matches European Journal of Physics C versio
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