Chemical Dependency
Mostrando 25-36 de 41 artigos, teses e dissertações.
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25. Desenvolvimento de um sistema RP/RTCVD para deposição de filmes finos isolantes e metalicos
Thin film deposition by means of Chemical Vapor Deposition (CVD) has been of a great interest, specially in microelectronics. This work shows the development of a RT/RPCVD (Rapid Thermal / Remote Plasma CVD) systems for thin film deposition of dielectrics and metais, for use on microelectronics appliations. It is a very fIexible system because of its capabil
Publicado em: 1992
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26. Chemical dependency in women. Meeting the challenges of accurate diagnosis and effective treatment.
Women dependent on alcohol or prescribed or nonprescribed psychoactive drugs present special diagnostic challenges to physicians. Chemical dependency likewise has adverse effects on women who are nonusers through the disease of co-dependency. The natural history of chemical dependency in women includes sex-specific differences in presenting signs and symptom
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27. Characteristics of psychiatric discharges from nonfederal, short-term specialty hospitals and general hospitals with and without psychiatric and chemical dependency units: the Hospital Discharge Survey data.
Hospitalization for mental disorders (Major Diagnostic Categories 19 and 20) was examined using the 1980 Hospital Discharge Survey (HDS) data. We added to the HDS data by noting whether each hospital had a specialized psychiatric and/or chemical dependency unit, especially noting short-term specialty psychiatric and chemical dependency hospitals. Of the appr
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28. Possible Chemotaxis of Human Monocytes by N-Acetylmuramyl-l-Alanyl-d-Isoglutamine
N-Acetylmuramyl-l-alanyl-d-isoglutamine (MDP) induced the chemotaxis of human blood monocytes without mediation of serum complement. Specificity (dependency on chemical structure) of the chemotactic activity of MDP was evidenced by a negligible activity of analogs lacking most of the immunomodulating activities of MDP.
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29. Alprazolam use and dependence. A retrospective analysis of 30 cases of withdrawal.
From 1986 to 1989, the Chemical Dependency Recovery Program at Kaiser Permanente Hospital, Fontana, California, admitted an increasing number of patients for alprazolam dependence. Severe withdrawal reactions and adverse consequences with use were reported in the literature. In this review of 30 cases of alprazolam dependence and subsequent withdrawal, there
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30. Carbon-13 NMR in conformational analysis of nucleic acid fragments. Heteronuclear chemical shift correlation spectroscopy of RNA constituents.
The assignment of the non-quaternary 13C resonances by means of two-dimensional heteronuclear chemical shift correlation spectroscopy is presented for several oligoribonucleotides: The dimers m6(2)AU, m6(2)Am6(2)A and mpUm6(2)A and the trimers m6(2)AUm6(2)A and m4(2)Cm4(2)Cm6(2)A. The temperature and concentration dependency of the 13C chemical shifts are st
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31. Computation of Large Molecules with the Hartree-Fock Model
The usual way to compute Hartree-Fock type functions for molecules is by an expansion of the one-electron functions (molecular orbitals) in a linear combination of analytical functions (LCAO-MO-SCF, linear combination of atomic orbitals—Molecular Orbital—Self Consistent field). The expansion coefficients are obtained variationally. This technique require
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32. Residual tRNA secondary structure in 'denaturing' 8M urea/TBE polyacrylamide gels: effects on electrophoretic mobility and dependency on prior chemical modification of the tRNA.
Fifteen individual species of tRNA were treated with the chemical modifiers diethylpyrocarbonate, 50% aqueous hydrazine or hydrazine/3 M NaCl. Following purification of the chemically modified material on polyacrylamide gels containing 8 M urea, variant minor bands, in addition to the expected main band, were observed for 12 of the 15 tRNAs. Characterization
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33. Shape and fine structure of nucleoids observed on sections of ultrarapidly frozen and cryosubstituted bacteria.
Very rapidly frozen cells of Escherichia coli and Bacillus subtilis were substituted at low temperature into acetone with 1% OsO4 and embedded in Epon. They showed ribosome-free spaces filled with globular and fibrillar material of up to 15 nm. The sizes of structures seen do not exclude DNA superstructures such as supercoils, aggregates, and nucleosomes. Wi
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34. Membrane insertion and assembly of ductin: a polytopic channel with dual orientations.
Ductin is a highly conserved and polytopic transmembrane protein which is the subunit c component of the vacuolar H(+)-ATPase (V-ATPase) and a component of a connexon channel of gap junctions. Previous studies have suggested that ductin in the V-ATPase has the opposite orientation of ductin in a connexon. Using an in vitro translation system coupled to micro
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35. Iron-chelating Hydroxamic Acid (Schizokinen) Active in Initiation of Cell Division in Bacillus megaterium
Bacillus megaterium ATCC 19213 secretes a cell division-initiating “schizokinen” (SK) which accumulates during its culture cycle to a concentration inversely proportional to the iron added to a sucrose-mineral salts medium. Secreted SK was purified from culture filtrates as a red Fe (III) chelate, and a fraction with similar biological properties was obt
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36. Chemical dependency and drug testing in the workplace.
Urine testing for drug use in the workplace is now widespread, with the prevalence of positive drug tests in the work force being 0% to 15%. The prevalence of marijuana use is highest, and this can be reliably tested. Though it is prudent to rid the workplace of drug use, there is little scientific study on the relationship of drug use and workplace outcomes