United States Department of Health and Human Services. National Center for Health Statistics (1998)
Publisher: ICPSR - Interuniversity Consortium for Political and Social Research
The National Ambulatory Medical Care Surveys (NAMCS) supply data on ambulatory medical care provided in physicians' offices. The 1995 survey contains information from 36,875 patient visits to 1,883 physicians' offices. Data are available on the patient's smoking habits, reason for the visit, expected source of payment, the physician's diagnosis, and the kinds of diagnostic and therapeutic services rendered. Other variables cover drugs/medications ordered, administered, or provided during offi...
Simon R. Arridge; Martin Schweiger (1998)
Optical tomography schemes using non-linear optimisation are usually based on a Newton-like method involving the construction and inversion of a large Jacobian matrix. Although such matrices can be efficiently constructed using a reciprocity principle, their inversion is still computationally difficult. In this paper we demonstrate a simple means to obtain the gradient of the objective function directly, leading to straightforward application of gradient-based optimisation methods.
Ammar, R.; Baringer, Philip S.; Bean, A.; Besson, D.; Coppage, D.; Darling, C.; Davis, R.; Hancock, N.; Kotov, S.; Kravchenko, I.; Kwak, N.; Anderson, S.; Kubota, Y.; Lattery, M.; Lee, S.J.;... (1998)
Publisher: Phys.Rev. D57 (1998) 1350-1358
CORNELL-CESR. Measurement of R at centre-of-mass energy 10.52 GeV and derivation of ALPHA_S.
Abachi, S.; Abbott, B.; Abolins, M.; Acharya, B.S.; Adam, I.; Adams, D.L.; Adams, M.; Ahn, S.; Aihara, H.; Alvarez, G.; Alves, G.A.; Amidi, E.; Amos, N.; Anderson, E.W.; Aronson, S.H.;... (1998)
Publisher: Phys.Rev. D57 (1998) 589-593
FNAL-COLLIDER. Search for top squark pair production in the dielectron channel. 74.9 +- 8.9 1/pb integrated luminosity.
Abbott, B.; Abolins, M.; Acharya, Bannanje Sripath; Adam, I.; Adams, D.L.; Adams, M.; Ahn, S.; Aihara, H.; Alves, G.A.; Amidi, E.; Amos, Norman A.; Anderson, W.; Astur, R.; Baarmand, M.M.; Baden, A.;... (1998)
Publisher: Phys.Rev.Lett. 80 (1998) 666-671
FERMILAB-COLLIDER. Measurement of the angular distribution of dijets produced in pbar-p collisions at a centre-of-mass energy of 1.8 TeV. Data come from anintegrated luminosity of 94pb-1 collected buring 1993-95. The variable CHI is defined as:. CHI=(1+ABS(COS(THETA*)))/(1-ABS(COS(THETA*))). = EXP(ABS(ETARAP(JET1)-ETARAP(JET2))). where THETA* is the cm scattering angle and ETARAP the jets pseudorapidity.
Jestin, Isabelle; Frère, Pierre; Mercier, Nicolas; Levillain, Eric; Stievenard, Didier; Roncali, Jean (1998)
Soluble thienylenevinylene oligomers based on 3,4-dihexylthiophene with chain length approaching
100 Å (16-mer) have been synthesized. Optical data obtained in solution and on solution-processed thin films
show that chain extension produces a narrowing of the HOMO−LUMO gap (ΔE) and band gap (Eg) which
reach values significantly smaller than that of the parent polymer. Plots of ΔE and Eg vs the reciprocal number
of carbons in the chain (1/Cn) reveal a deviation from linearity beyon...
Norquist, Alexander J.; Heier, Kevin R.; Stern, Charlotte L.; Poeppelmeier, Kenneth R. (1998)
Composition space diagrams have been used to study phase stability of mixed transition metal oxide fluorides
synthesized by hydrothermal reaction of the metal oxides in (HF)x·pyridine/H2O/pyridine solution (150 °C,
autogenous pressure). The combination of early (Ti, Zr, Hf, Nb, Ta, Mo, W) and late (Cu, Cd, Zn) transition
metals and the effects of varying the mole ratios of the metals, (HF)x·pyridine, and water are examined in this
study. Single-crystal products containing [Cu(py)4...
; Jacques Clavier
; Christian Hily
; Jean-Pierre Gattuso (1998)
Projects: EC | EPOCA (211384)
Bosman, Anton W.; Bruining, Monique J.; Kooijman, Huub; Spek, Anthony L.; A. J. Janssen, René; Meijer, E. W. (1998)
Concerning the Localization of End Groups in
Lee, Dongwhan; Lippard, Stephen J. (1998)
Structural and Functional Models of the
Dioxygen-Activating Centers of Non-Heme Diiron
Enzymes Ribonucleotide Reductase and Soluble