Many distinct phases of aluminum cobalt alloys occur in a narrow composition range near Al 3 Co. We compare the distribution functions of these structures with pair potentials calculated for this binary alloy. Both the Al-Co and the Co-Co distributions display strong modulations out to distances of beyond 10 A, while the Al-Al distributions approach a constant beyond a few Angstroms. Radial dis...

background :the ccr5 is a chemokine receptor that serves as a co-receptor for hiv-1 attachment and entry to t lymphocytes. a 32bp deletion (∆32) in this gene is believed to be associated with resistance to infection and delay disease progression. the aim of this study was to determine the ∆32 allele frequency in healthy individuals and hiv-infected individuals with aids.   methods : in this exp...

The possibility of HCO(3) (-) transport into isolated leaf mesophyll cells of Asparagus sprengeri Regel has been investigated. Measurement of the inorganic carbon pool in these cells over an external pH range 6.2 to 8.0, using the silicone-fluid filtration technique, indicated that the pool was larger than predicted by passive (14)CO(2) distribution, suggesting that HCO(3) (-) as well as CO(2) ...

Carbon monoxide (CO) is a gaseous mediator, which is generated via anenzymatic reaction of heme oxygenase, and it plays physiological roles in regulating cellular respiration and blood flow in the liver. The concentration and distribution of CO molecules in the living body is unknown owing to a lack of a suitable technique for measuring them in vivo. A needle-type CO sensor has been used for bi...

A 3D inverse modeling scheme is used to constrain the direct surface emissions of carbon monoxide CO. A priori estimates of CO emissions are taken from various inventories and are included in the IMAGES model to compute the distribution of CO. The modeled CO mixing ratios are compared with observations at 39 CMDL stations, averaged over the years 1990-1996. The inter-annual variability of CO so...

Hyperthermal Ar atoms were scattered under grazing incidence (θ(i) = 60°) from a CO-saturated Ru(0001) surface held at 180 K. Collision-induced desorption involving the ejection of fast CO (∼1 eV) occurs. The angularly resolved in-plane CO desorption distribution has a peak along the surface normal. However, the angular distribution varies with the fractional coverage of the surface. As the tot...

In single-authored bibliographies only single scientist distribution can be found. But in multi-authored bibliographies single scientists distribution, pairs distribution, triples distribution, etc., can be presented. Whereas regarding Lotka ́s law single scientists P distribution (both in single-authored and in multi-authored bibliographies) is of interest, in the future pairs P, Q distribution...

Iron cobaltite powders CoxFe3ÿxO4 (1rxr2.46) were synthesized with compositions in between the cobalt ferrite CoFe2O4 and Co2.46Fe0.54O4. The cationic distribution of pure spinel phases was determined by Mössbauer spectroscopy: as Co content increases in the spinel oxide, Co cations replace Fe cations in the octahedral sites and Co cations migrate from octahedral to tetrahedral sites. Saturatio...