Mid-Infrared Transmission Spectroscopy of Sugar Solutions: Instrumentation and Analysis

Transmission studies on a specially designed scanning spectroprocessor for aqueous systems are reported for the first time. The nature of the absorption bands and the possibility of a universal isobestic point are discussed for a series of sugar solutions.     

Nongenomic mechanisms of physiological estrogen-mediated dopamine efflux

Background  

Neurological diseases and neuropsychiatric disorders that vary depending on female life stages suggest that sex hormones may influence the function of neurotransmitter regulatory machinery such as the dopamine transporter (DAT).     

An oxovanadium(IV) complex containing a pentacoordinate Schiff-base ligand: synthesis and crystal and molecular structure of N,N′-(3,3′-dipropylamine)bis (3-methoxysalicylideneiminato)oxovanadium(IV) dihydrate

Crystals ofN,N-(3,3-dipropylamine)bis(3-methoxysalicylideneiminato) oxovanadium(IV) dihydrate are monoclinic, space groupP2₁/n (No. 14) with four molecules in the unit cell of dimensionsa=8.667(4),b=20.617(4),c=12.744(3) Å,=91.48(3)°. The structure was solved by the heavy-atom method and refined by block diagonal least-squares calculations with anisotropic thermal parameters for nonhydrogen atoms.R=0.038 for 1457 reflections withI>3(I). This structure is the first reported for an oxovanadium(IV) complex involving complexation of a pentacoordinate Schiff-base ligand. The coordination polyhedron is based on a distorted octahedron. Three nitrogen and one oxygen atom from the ligand form an equatorial plane around vanadium with V-N(1) 2.096(4), V-N(2) 2.180(4), V-N(3) 2.088(4), V-O(2) 1.961(3) Å, and octahedral coordination is completed by the vanadyl oxygen [V-O(1) 1.617(3) Å] and the remaining ligand oxygen [V-O(3) 2,098(3) Å]. The relatively long V-O(1) distance correlates well with the low value ofv(V=O) of 919 cm^–1. The molecules of the complex are linked by water molecules of crystallization to form infinite hydrogen-bonded chains parallel toa.     

Comparison of 147 GeV/c π− p low transverse momentum hadron production with deep-inelastic leptoproduction

Zeitschrift für Physik C Particles and Fields - Distributions with respect toz andz R for the fastest and second fastest particles produced in both beam and target hemispheres from 147 GeV/c...     

Inclusive and semi-inclusive ϱ0 production in π−p interactions at 147 GeV/c

We present data on inclusive and semi-inclusive ?⁰ production in 147 GeV/c π^?p interactions. We find a total cross section of 7.3 ± 1.3 mb. Most of this cross section is found in the lower topology events (? 10 prongs), and in the central and forward rapidity regions. The P_T² dependence of ?⁰ production, 〈:n>_?0 per event, and the ?⁰/π⁺ ratios are also discussed.