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  • 1
    Electronic Resource
    Electronic Resource
    Pressure-Tunable Dual-Column Ensembles for High-Speed GC and GC/MS (2000)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 23 (2000), S. 225-234 
    Details
    ISSN: 0935-6304
    Keywords: Tunable column ensembles ; high speed GC ; comprehensive two-dimensional GC ; time of flight ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: ---A series-coupled ensemble of two capillary GC columns of different selectivity with an adjustable pressure at the column junction point is used to obtain tunable selectivity for high-speed GC and GC/TOFMS. An electronic pressure controller with a 0.1-psi step size is used to obtain numerous computer-selected unique selectivities. System configurations for conventional, atmospheric-pressure outlet operation with flame ionization detection and for vacuum-outlet operation with photoionization detection are described for GC-only experiments. Polydimethylsiloxane is used as the non-polar column and polyethylene glycol (atmospheric outlet) or triflouropropylpolysiloxane (vacuum outlet) is used as the polar column. For GC/TOFMS experiments, 5% phenyl polydimethylsiloxane was used as the non-polar column, and polyethylene glycol was used as the polar column. The time-of-flight mass spectrometer can acquire up to 500 complete mass spectra per second. Since spectral continuity is achieved across the entire chromatographic peak profile, severely overlapping peaks can be spectrally deconvoluted for high-speed characterization of completely unknown mixtures. For mixture components with significantly different fragmentation patterns, spectral deconvolution can be achieved for chromatographic peak separations of as little as 6.0 ms. This can result is very large peak capacity for time compressed (not completely resolved) chromatograms. The use of columns with tunable selectivity allows for precise peak-position control, which can result in more efficient utilization of available peak capacity and thus further time compression of chromatograms. The limits of tunability and deconvolution are tested for near co-elutions of different classes of hydrocarbon compounds as well as for more multi-functional mixtures.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
  • 2
    Electronic Resource
    Electronic Resource
    Letter to the editors (1993)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 22 (1993), S. 143-144 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200220207
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  • 3
    Electronic Resource
    Electronic Resource
    Electron impact induced fragmentations of 5-hydroxy-1,2-pentadiene (1987)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 22 (1987), S. 121-122 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210220216
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  • 4
    Electronic Resource
    Electronic Resource
    Electron impact induced fragmentation of β-allenic and γ-acetylenic alcohols (1989)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 24 (1989), S. 909-916 
    Details
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The main fragmentation pathway of ionized hydroxyallenes (1) consists of a methyl loss. Extensive deuterium-labelling experiments indicate that the terminal allenic carbon is implied in this fragmentation. Collisional activation spectra indicate a propenyl-acylium structure (a) for these [M - CH3]+ ions which can originate from a 1,4-hydroxyl migration followed by hydrogen rearrangements. Isomeric hydroxyacetylenes (2) behave similarly, also giving rise, by methyl loss, to acylium ions a. It is proposed that 2+ · is irreversibly isomerized into 1+ · by a 1,3-hydrogen transfer ‘catalysed’ by the hydroxy group. The proposed internal proton-bound complex justifies also the easier loss of water from 2+·. Ethyl loss is also a prominent fragmentation for the hydroxyallene and hydroxy-acetylene homologues.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/oms.1210241011
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  • 5
    Electronic Resource
    Electronic Resource
    Analyse conformationnelle de pyrazolines-1 substituées (1973)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 5 (1973), S. 453-457 
    Details
    ISSN: 0030-4921
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Conformational analysis of 1-pyrazolines bearing different substituents on carbons 3 and 4 has been achieved by NMR. The use of the Karplus equation to explain the values of the coupling constants 3J(H4—H5) allows us to ‘check’ the existence of an equilibrium between two envelope conformations. The folding angle of the envelope, calculated on a model compound which is held in only one conformation, wad found to be near 36°. The ratio of the two conformers at room temperature is calculated for the various pyrazolines studied.
    Notes: L'analyse conformationnelle de pyrazolines-1 diversement substituées sur les carbones 3 et 4 a été réalisée à l'aide de la RMN. L'utilisation de l'équation de Karplus pour interpréter les valeurs des constantes de couplage 3J(H4—H5) permet de vérifier l'existence d'un équilibre entre deux formes enveloppes. L'angle d'ouverture de l'enveloppe, calculé sur un composé modèle figé dans une seule conformation, est voisin de 36°. Les pourcentages relatifs des deux conformères à la température ambiante sont calculés pour les divers pyrazolines étudiées.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1270051002
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  • 6
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    Pre-Deployment Stress, Mental Health, and Help-Seeking Behaviors Among Marines (2023)
    RAND Corporation
    Details
    Publication Date: 2024-03-31
    Description: As part of an evaluation of the Marine Corps Operational Stress Control and Readiness (OSCAR) program, this report describes the methods and findings of a large survey of marines who were preparing for a deployment to Iraq or Afghanistan in 2010 or 2011. The results are among the first to shed light on the pre-deployment mental health status of marines, as well as the social resources they draw on when coping with stress and their attitudes about seeking help for stress-related problems.
    Keywords: Health Sciences ; Technology ; Psychology ; thema EDItEUR::M Medicine and Nursing::MB Medicine: general issues::MBQ Medicolegal issues ; thema EDItEUR::J Society and Social Sciences::JM Psychology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences::TTM Military engineering
    Language: English
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  • 7
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    Out of the Shadows (2023)
    RAND Corporation
    Details
    Publication Date: 2024-03-29
    Description: Private contractors have been deployed extensively around the globe for the past decade and may be exposed to many of the stressors that are known to have physical and mental health implications for military personnel. Results from a RAND survey offer preliminary findings about the mental and physical health of contractors, their deployment experiences, and their access to and use of health care resources.
    Keywords: Psychology ; History ; Health Sciences ; thema EDItEUR::J Society and Social Sciences::JW Warfare and defence::JWK Military and defence strategy ; thema EDItEUR::J Society and Social Sciences::JM Psychology::JMP Abnormal psychology
    Language: English
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  • 8
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    Care Transitions to and from the National Intrepid Center of Excellence (NICoE) for Service Members with Traumatic Brain Injury (2023)
    RAND Corporation
    Details
    Publication Date: 2023-10-05
    Description: The U.S. Department of Defense established the National Intrepid Center of Excellence (NICoE) to provide specialized services for troops suffering from traumatic brain injury (TBI). Through interviews with NICoE staff, home station providers, service members treated at the NICoE, and their families, as well as surveys and site visits, RAND evaluated interactions between the NICoE and providers referring patients and implementing treatment plans.
    Keywords: Health Sciences ; Psychology ; bic Book Industry Communication::M Medicine::MB Medicine: general issues::MBQ Medicolegal issues ; bic Book Industry Communication::M Medicine::MJ Clinical & internal medicine::MJN Neurology & clinical neurophysiology ; bic Book Industry Communication::J Society & social sciences::JM Psychology
    Language: English
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  • 9
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    The Development and Application of the RAND Program Classification Tool (2023)
    RAND Corporation
    Details
    Publication Date: 2023-10-05
    Description: The RAND Program Classification Tool is an instrument containing questions and response options across eight key domains that allows for the consistent description of programs in the same content area. Such data can help program portfolio managers compare programs, avoid duplication, and target technical assistance. Developed for psychological health and traumatic brain injury programs, the tool has broader applicability to other content areas.
    Keywords: Psychology ; Management & Organizational Behavior ; Health Sciences ; bic Book Industry Communication::K Economics, finance, business & management::KJ Business & management::KJM Management & management techniques::KJMV Management of specific areas::KJMV2 Personnel & human resources management ; bic Book Industry Communication::M Medicine::MJ Clinical & internal medicine::MJN Neurology & clinical neurophysiology ; bic Book Industry Communication::J Society & social sciences::JM Psychology::JMP Abnormal psychology ; bic Book Industry Communication::J Society & social sciences::JM Psychology
    Language: English
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  • 10
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    Improving Care for Co-Occurring Psychological Health and Substance Use Disorders (2023)
    RAND Corporation
    Details
    Publication Date: 2024-04-01
    Description: This report presents results of an implementation evaluation of a clinician training program to improve care for Navy personnel with co-occurring disorders. Clinicians saw a need for such training and viewed it positively. Results also suggest that careful planning and targeting training towards programs best suited to treating co-occurring disorders would improve training effectiveness and likely translate into higher-quality care.
    Keywords: Psychology ; Health Sciences ; thema EDItEUR::M Medicine and Nursing::MR Medical study and revision guides and reference material ; thema EDItEUR::M Medicine and Nursing::MB Medicine: general issues::MBQ Medicolegal issues ; thema EDItEUR::J Society and Social Sciences::JM Psychology ; thema EDItEUR::V Health, Relationships and Personal development::VF Family and health::VFJ Coping with / advice about personal, social and health topics
    Language: English
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