We have developed an improved line spread function (LSF) for the medium resolution farultraviolet gratings (G130M and G160M) of the Cosmic Origins Spectrograph (COS) by taking into account scattering in the far wings due to microroughness on the HST primary mirror. We start with the preliminary model LSFs that include the broad, non-Gaussian wings caused by mid-frequency wave-front errors (MFWF...

OBJECTIVE To investigate the protective effect of chitosan oligosaccharide (COS) on acute lung injury (ALI) caused by blast injury, and explore possible molecular mechanisms. METHODS A mouse model of blast injury-induced ALI was established using a self-made explosive device. Thirty mice were randomly assigned to control, ALI and ALI + COS groups. An eight-channel physiological monitor was us...

Quantitative structure-activity relationship (QSAR) models were useful in understanding how chemical structure relates to the toxicology of chemicals. In present study, we report quantum molecular descriptors using conductor like screening model (COs) area, linear polarizability, first and second order hyperpolarizability for modelling nitro substituent on benzene ring. All performed semi-empir...

Light reflection models for computer graphics have been developed over the past several decades. For real paint surfaces, it is possible to model their bidirectional reflectance distribution function with simple models. This research established a framework to evaluate two simple reflection models, Phong and Torrance-Sparrow, which were used to render artist paint surfaces under different illum...

Hyperbolic systems of dissipative type, contracting the phase space volume, manifest robust attractors. There are several classes of discrete time systems which produce hyperbolic nontrivial attractor – like the Plykin attractors [P] or the Smale attractors [KH]. Recently, Kuznetsov [K] proposed a continuous model for which there is a good numerical evidence of the existence of an uniformly hyp...

f(x) = (sec 12x)(sec 12x+ tan 12x). A3 The limit is 0; we will show this by checking that dn = 0 for all n ≥ 3. Starting from the given matrix, add the third column to the first column; this does not change the determinant. However, thanks to the identity cosx+ cos y = 2 cos x+y 2 cos x−y 2 , the resulting matrix has the form  2 cos 2 cos 1 cos 2 · · · 2 cos(n+ 2) cos 1 cos(n+ 2) · · · 2 cos...

in order to evaluate nitrogen fixation ability and nutrients uptake in three cultivars of common bean (phaseolus vulgaris l.) inoculating with some types of inoculants containing different strains of rhizobium leguminosarum; bv. phaseoli an experimental design was conducted in khoramdarah region in 2006 and 2007. in this investigation three types of biological fertilizers including rb117, rb123...

The phagocyte nicotinamide adenine dinucleotide phosphate (reduced form) (NADPH) oxidase was functionally reconstituted in monkey kidney COS-7 cells by transfection of essential subunits, gp91(phox), p22(phox), p47(phox), and p67(phox). COS-7 cells express the essential small guanosine 5'-triphosphatase, Rac1. Transgenic COS-phox cells were capable of arachidonic acid-induced NADPH oxidase acti...