Laboratory-frame and body-frame treatments are combined using the $l$-uncoupling transformation which had served to interpret absorption spectrum of ${\mathrm{H}}_{2}$. Application a phase-amplitude procedure converts Schr\"odinger equation Volterra-type integral form, reduces Born-like approximation when long-range interactions weak. Attention is directed features low-energy collisions that must be considered by realistic theory. This paper develops formalism can take advantage different...

Rotational excitation of homonuclear diatomic molecules can be simply yet accurately calculated from the scattering parameters elastic electron-molecule in fixed-nuclei approximation. The total cross sections for $\ensuremath{\Delta}j\ensuremath{\ne}0$ transitions are independent $s$-wave parameters, and ratios $\ensuremath{\Delta}j=\ifmmode\pm\else\textpm\fi{}2$ agree with experimental results ${\mathrm{H}}_{2}$ rotational close-coupling calculations. Absolute differential explained.

The Brueckner-Goldstone many-body perturbation method, previously utilized for calculations of atomic correlation energies and polarizabilities, has been extended to the study hyperfine structure. energy as well coupling constant lithium atom are calculated compared with results some earlier methods. present method makes use Feynman-like diagrams which facilitate evaluation importance various physical effects. Analysis shows that difference between experimental Hartree-Fock values is mainly...

A modified optical-potential approach is introduced for electron-atom scattering at low energies whereby the formal optical potential used directly in a variational expression phase shifts. This has advantage that one may include effect of second-order without recourse to usual adiabatic approximation. The diagrammatic associated with present method makes it possible identify different contributing terms physical effects, and thus assess relative importance various effects involved process....

A previous analysis of electron scattering from diatomic molecular systems in spherical coordinates is generalized to include the coupling different partial waves fixed-nuclei approximation. The factorability between dynamical parameters and those depending on inter-nuclear-axis orientation can be maintained, optical theorem shown hold for all orientations internuclear axis certain classes approximations. method polarized single-center orbitals extended $d$-wave $e$-${\mathrm{H}}_{2}^{+}$...

Background Reverse shoulder arthroplasty (RSA) improves function in selected patients with complex problems. However, we presume patient would vary if performed primarily or for revision and other patient-specific factors. Questions/purposes We compared (1) the scores (2) complications RSA who had as a primary procedure; (3) identified factors that affect (2). Patients Methods retrospectively 28 RSAs failed control group consisting of RSAs. determined Penn Shoulder (PENN), American Elbow...

The frame-transformation theory is applied to a calculation of electron scattering from ${\mathrm{H}}_{2}$ in the energy range 1-10 eV. Results are presented for differential as well integrated cross sections pure vibrational and rotational-vibrational excitation processes. Our calculations very satisfactory agreement with experiment subject easy interpretation.

The Brueckner-Goldstone perturbation method has been applied to the calculation of dipole polarizability (${\ensuremath{\alpha}}_{d}$) and antishielding factor (${\ensuremath{\gamma}}_{d}$) for lithium-atom ground state. complete set states utilized is same as those employed in earlier calculations hyperfine constant correlation energy. Our results are ${\ensuremath{\alpha}}_{d}=24.84$ ${\mathrm{\AA{}}}^{3}$ ${\ensuremath{\gamma}}_{d}=0.958$, compared a recent experimental value...

Background: The modified Jobe technique of ulnar collateral ligament (UCL) reconstruction has previously been biomechanically compared with primary repair augmented internal bracing. However, the docking not Hypothesis: Load to failure, gapping, and valgus opening angle are similar under loading at 90° flexion between bracing for UCL. Study Design: Controlled laboratory study. Methods: Nine matched pairs fresh-frozen cadaveric elbows were potted forearm in neutral rotation. palmaris longus...

Background: Asymmetric landing kinetics 6 months after anterior cruciate ligament reconstruction (ACLR) are associated with higher risk of second injury. Little is known about ACLR an all–soft tissue quadriceps tendon (QT) autograft despite its increasingly common use in young, active patients. Purpose/Hypothesis: The purpose this study was to compare during a bilateral drop vertical jump (DVJ) participants who had undergone primary QT or bone–patellar tendon–bone (BTB) autograft. hypothesis...

view Abstract Citations (80) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Identification of the solar emission lines near 12 microns Chang, E. S. ; Noyes, R. W. The in far-infrared spectrum discussed here were reported by Murcray et al. (1981) and Brault Noyes (1983). two strong lines, at 12.32 12.22 microns, appear disk center brighten greatly toward limb. More than 40 additional limb-brightened limb, most these are too weak to be seen...

A linear combination of atomic orbitals-self-consistent field- molecular orbital (LCAO-SCF-MO) calculation the interaction potential ground state LiHe+ is reported, and results compared with other quantal calculations semi-empirical potentials. The used to investigate elastic scattering Li+ by He. Values differential cross section I( theta ), for through an angle > 0, S( 0), total Qel(k2), diffusion QD(k2) mobility K(T) are obtained experiment. Excellent agreement except cm >70 degrees ....

Energy and angular dependences of the elastic scattering excitation nu 2, 3 5 vibrational modes have been measured in range from degrees to 108 for impact energies electrons threshold 3.6 eV. Absolute differential integrated cross sections are presented. The study vibrations 1 4 is more limited because these Raman active not excited strongly this energy region. A previous theoretical treatment allows determination amplitudes direct via 2 Pi g shape resonance also relative phases between two...

A 5’ detailed gravimetric geoid has been computed for the northwest Atlantic Ocean as ground truth GEOS‐3 satellite altimeter experiment. Comparisons of this with derived geoceiver station heights show an r.m.s. difference 1.2 m. Initial comparisons GEOS‐III profiles have indicated a relative agreement generally better than 2

A structure−activity relationship for symmetrical cyanine inhibitors of human tau aggregation was elaborated using a filter trap assay. Antagonist activity depended on heterocycle, polymethine bridge length, and the nature meso- N-substituents. One potent member series, 3,3′-diethyl-9-methylthiacarbocyanine iodide (compound 11), retained submicromolar potency had calculated physical properties consistent with blood−brain barrier cell membrane penetration. Exposure organotypic slices prepared...

Small-molecule Tau aggregation inhibitors are under investigation as potential therapeutic agents against Alzheimer disease. Many such have been identified in vitro, but their potency-driving features, and molecular targets the pathway, resisted identification. Previously we proposed ligand polarizability, a measure of electron delocalization, candidate descriptor inhibitor potency. Here tested this hypothesis by correlating ground state polarizabilities cyanine, phenothiazine, arylmethine...

Rotational excitation cross sections of H 2 + by electron impact are evaluated in the adiabatic approximation from phase-shifts previous papers based on method single center polarized orbitals. In consonance with classically averaged fixed-nuclei papers, we find here that quantitative changes due to polarization and permanent distortion rotational also small. However relative sizes these two effects interchanged being more important; reasons for this easily seen. first part paper,...