5,758 research outputs found

    A survey of chemical information systems

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    A survey of the features, functions, and characteristics of a fairly wide variety of chemical information storage and retrieval systems currently in operation is given. The types of systems (together with an identification of the specific systems) addressed within this survey are as follows: patents and bibliographies (Derwent's Patent System; IFI Comprehensive Database; PULSAR); pharmacology and toxicology (Chemfile; PAGODE; CBF; HEEDA; NAPRALERT; MAACS); the chemical information system (CAS Chemical Registry System; SANSS; MSSS; CSEARCH; GINA; NMRLIT; CRYST; XTAL; PDSM; CAISF; RTECS Search System; AQUATOX; WDROP; OHMTADS; MLAB; Chemlab); spectra (OCETH; ASTM); crystals (CRYSRC); and physical properties (DETHERM). Summary characteristics and current trends in chemical information systems development are also examined

    Three-dimensional simulations of turbulent spectra in the local interstellar medium

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    International audienceThree-dimensional time dependent numerical simulations of compressible magnetohydrodynamic fluids describing super-Alfvénic, supersonic and strongly magnetized space and laboratory plasmas show a nonlinear relaxation towards a state of near incompressibility. The latter is characterized essentially by a subsonic turbulent Mach number. This transition is mediated dynamically by disparate spectral energy dissipation rates in compressible magnetosonic and shear Alfvénic modes. Nonlinear cascades lead to super-Alfvénic turbulent motions decaying to a sub-Alfvénic regime that couples weakly with (magneto)acoustic cascades. Consequently, the supersonic plasma motion is transformed into highly subsonic motion and density fluctuations experience a passive convection. This model provides a self-consistent explaination of the ubiquitous nature of incompressible magnetoplasma fluctuations in the solar wind and the interstellar medium

    Present status of fish culture in daulatabad talaw(amrai talaw) dist- Aurangabad (M.S.), India

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    Present study is give to fish culture status, production and development of talaw. An attempt has been made to involve present status for fishery culture improvement in the management and commercial production of the fishes. It controlled by private agency

    Influence of gender on static balance in healthy community dwelling elderly: a comparison using posturography

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    Background: Background and need of study- Influence of gender on balance is still controversial. Previous researchers have done studies using traditional methods. These methods may fail to detect subtle changes in balance difference. A tool like posturography which is highly specific may help to for accurate assessment and hence precise conclusion. Aim was to compare balance scores of male and female elderly using modified Clinical Test of Sensory Interaction on Balance (CTSIB).Methods: There were 56 healthy elderly ambulating without an assistive device and free from any neurological and orthopedic problems were assessed for their balance abilities using mCTSIB of balance master(standing on firm surface with eyes open, with eyes closed, standing on foam surface with eyes open and with eyes closed). Sway velocity was assessed using Unpaired t test.Results: There was a no significant difference in scores of modified CTSIB between male and female elderly ( p value>0.005).Conclusions: Gender has no effect on static balance abilities between male and female elderly while performing modified clinical test of sensory interaction on balance

    Bianchijev kozmološki model tipa I u samotvornoj kozmologiji

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    A five-dimensional Bianchi type-I space-time is considered in the presence of a perfect fluid source in Barber\u27s (Gen. Relat. Gravit. 14, 117, 1982) second self-creation theory of gravitation. The model is presented using a relation between the metric potentials and an equation of state. Some physical and kinematical properties of the model are discussed.Razmatramo Bianchijev prostor-vrijeme tipa I u pet dimenzija, uz prisustvo perfektne tekućine, u drugoj Barberovoj samotvornoj teoriji gravitacije (Gen. Relat. Gravit. 14, 117, 1982). U modelu pretpostavljamo relaciju među metričkim potencijalima i jednadžbu stanja. Raspravljamo neke fizičke i kinematičke odlike modela

    Drugs in pregnancy and lactation

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    Drug use during pregnancy and lactation is an almost inevitable event. Some of the drugs may have adverse effects on the baby on exposure. It is therefore necessary for the physician to be aware of the changes in pharmacokinetics and pharmacodynamics during pregnancy. Knowledge about the known teratogens and drugs safe to be used during pregnancy is essential on the part of the prescribing physician. There are many factors affecting drug passage into the milk and thus affecting the child in some cases. There are also some drugs affecting lactation. All this data needs to be carefully studied by the physician

    Bianchijev kozmološki model tipa I u samotvornoj kozmologiji

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    A five-dimensional Bianchi type-I space-time is considered in the presence of a perfect fluid source in Barber\u27s (Gen. Relat. Gravit. 14, 117, 1982) second self-creation theory of gravitation. The model is presented using a relation between the metric potentials and an equation of state. Some physical and kinematical properties of the model are discussed.Razmatramo Bianchijev prostor-vrijeme tipa I u pet dimenzija, uz prisustvo perfektne tekućine, u drugoj Barberovoj samotvornoj teoriji gravitacije (Gen. Relat. Gravit. 14, 117, 1982). U modelu pretpostavljamo relaciju među metričkim potencijalima i jednadžbu stanja. Raspravljamo neke fizičke i kinematičke odlike modela

    How do parents of preverbal children with acute otitis media determine how much ear pain their child is having?

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    The objective of this study was to determine how parents of preverbal children determine whether their child is having otalgia. We constructed 8 cases describing a 1-year-old child with acute otitis media (AOM) using various combinations of the following 6 observable symptoms: fussiness, ear tugging, eating less, fever, sleeping difficulty, and playing less. Parents of children with a history of AOM presenting for well or sick appointments to an ambulatory clinic were asked to assign a pain level to each case on a visual analog scale. Sixty-nine parents participated in the study. Each of the 6 behaviors was associated with increased pain levels (P < .0001). Ear tugging and fussiness had the highest impact on the assigned pain levels. Higher level of parental education and private insurance were associated with higher reported pain levels (P = .007 and P = .001, respectively). Because interpretation of symptoms appears to be influenced by socioeconomic status, we question the utility of using an overall pain score from a 1-item parent scale as an outcome measure in clinical trials that include preverbal children. Perspective: Parents of preverbal children with acute otitis media use observable behaviors to determine their child's pain level. Interpretation of symptoms, however, appears to be influenced by socioeconomic status. Thus, we question the utility of using a 1-item parental pain scale in clinical trials that include preverbal children. © 2010 by the American Pain Society
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