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  • 2005-2009  (1)
  • 2000-2004  (8)
  • 1955-1959  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Gas-Liquid Partition Chromatography. Determination of 2,6-Di-tert-butyl-p-cresol on Antioxidant-Treated Paperboard (1958)
    s.l. : American Chemical Society
    Analytical chemistry 30 (1958), S. 1946-1948 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60144a018
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Failure of a resuscitation bag and mask (2005)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 60 (2005), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.2005.04355.x
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  • 3
    Electronic Resource
    Electronic Resource
    A stepwise multivariate analysis of factors that contribute to stress for mental health nurses working in the community (2001)
    Oxford UK : Blackwell Science Ltd
    Journal of advanced nursing 36 (2001), S. 0 
    Details
    ISSN: 1365-2648
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A stepwise multivariate analysis of factors that contribute to stress for mental health nurses working in the community Aims. The aim of the study was to examine the variety, frequency and severity of stressors experienced by community mental health nurses (CMHNs) in Wales. Background. Numerous studies undertaken throughout the United Kingdom (UK) have indicated that those health professionals working as part of community teams are experiencing increasing levels of stress and burnout. Sample sizes have tended to be small and participants have been drawn mainly from sites in England. Methods. A questionnaire booklet, which included a number of validated measures, was distributed to 614 CMHNs. These included Maslach Human Services Survey, Community Psychiatric Nursing (CPN) Stress Questionnaire, PsychNurse Coping Questionnaire, Rosenberg Self-Esteem Scale and General Health Questionnaire GHQ-12. The study was the largest of its kind conducted in the UK. Results. Data were collected from 301 CMHNs, representing a response rate of 49%. Community mental health nurses identified the most stressful issues as trying to maintain a good quality service in the midst of long waiting lists and poor resources and having too many interruptions while trying to work in the office. The best demographic predictors of high stress scores were having an unsupportive line manager, working with a specific client group and not having job security. These factors accounted for 20% of the variance in the total stress score. When the results from the psychometric instruments were included, 46% of the variance in the total stress score was accounted for. The predictive variables were emotional exhaustion, working with a specific client group, job security and alcohol consumption. Conclusions. These findings indicate that there is a need to create more supportive environments both in terms of job security and management support, especially for those working in the fields of severe mental illness and rehabilitation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2648.2001.02035.x
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  • 4
    Electronic Resource
    Electronic Resource
    Xylem in early tracheophytes (2003)
    Oxford, UK : Blackwell Science, Ltd
    Plant, cell & environment 26 (2003), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The architecture of the presumed water-conducting cells of the major lineages of early tracheophytes recorded in Silurian and Devonian rocks is reviewed, together with descriptions of further diverse types whose derivation remains uncertain. Evidence has been obtained from a wide gamut of fossils including coalified compressions, silicified, pyritized and calcium carbonate perimineralizations. Most of the cells, only a few having been unequivocally demonstrated to be tracheidal, have walls with two layers, the inner sometimes broadly similar to annular, spiral and scalariform secondary thickenings of extant xylem. There are, however, very few cases of identical construction and the fossil representatives show greater complexity and variety. Their walls are presumed to have been lignified, but the polymer has not yet been directly identified in the fossils. The implications of these wall architectures on the functioning of the cells in water conduction are briefly considered, as is their relevance to hypotheses on inter-relationships of early tracheophytes and on tracheid ontogeny.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3040.2003.00878.x
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  • 5
    Electronic Resource
    Electronic Resource
    Identification of a polar targeting determinant for Bacillus subtilis DivIVA (2004)
    Oxford, UK : Blackwell Publishing Ltd.
    Molecular microbiology 54 (2004), S. 0 
    Details
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The Bacillus subtilis protein DivIVA controls both the positioning of the vegetative cell division site and the polar attachment of the chromosome during sporulation. In vegetative growth DivIVA attracts the bipartite cell division inhibitor MinCD away from the cell centre and towards the cell pole. This process ensures the inactivation of old polar division sites and leaves the cell centre free for the assembly of a new cell division complex. During sporulation MinCD and DivIVA levels fall, but DivIVA remains at the cell poles and becomes involved in the migration of the chromosomes to the pole. In order to investigate polar targeting of DivIVA, we undertook a mutational analysis of the 164-amino-acid protein. These studies identified one mutant (divIVAR18C) that could not localize to the cell pole but which retained the ability to support both vegetative growth and 50% sporulation efficiency. Further analysis revealed that, in the absence of polar targeting, DivIVAR18C localized to the nucleoid during vegetative growth in a Spo0J/Soj-dependent manner and required Spo0J/Soj and MinD to orientate the chromosomes correctly during sporulation. We demonstrate that polar targeting of DivIVAR18C is not essential during vegetative growth because the mutant can recognize the cell division site and influences the localization of MinD. Similarly we show that DivIVAR18C can function during sporulation because it can support the Spo0J/Soj orientation of the chromosome. In addition, we establish that both residues 18 and 19 constitute a DivIVA polar targeting determinant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2958.2004.04363.x
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  • 6
    Electronic Resource
    Electronic Resource
    RUNOFF NUTRIENT AND FECAL COLIFORM CONTENT FROM CATTLE MANURE APPLICATION TO FESCUE PLOTS (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 36 (2000), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: : Grazed pastures represent a potential source of non-point pollution. In comparison to other nonpoint sources (e.g., row-cropped lands), relatively little information exists regarding possible magnitudes of pollution from grazed pasture; how that pollution is affected by weather, soil, management and other variables; and how the pollution can be minimized. The objective of this study was to assess how the quality of runoff from fescue plots is influenced by duration of cattle manure application (4–12 weeks) and manure application strategy (none, weekly application of 1.4 kg/plot, and monthly application at 5.6 kg/plot). Additional analyses were performed to relate runoff quality to the timing of sample collection. The study was conducted at the University of Kentucky Maine Chance Agricultural Experiment Station north of Lexington. Plots (2.4 m wide by 6.1 m long) were constructed and established in Kentucky 31 fescue (Festuca arundinacea Schreb.) to represent pasture. Grazing was simulated by application of beef cattle manure to the plots. Runoff was generated by applying simulated rainfall approximately 4, S and 12 weeks following initiation of manure application. Runoff samples were collected and analyzed according to standard methods for nitrogen (N), phosphorus (P) and fecal coliforms (FC). Runoff concentrations of N and P from manure-treated plots were low and generally not consistently different from control plot concentrations or related to manure application strategy. Runoff FC concentrations from manure-treated plots were higher than from control plot concentrations. Runoff concentrations of ammonia N, total Kjeldahl N, ortho-P and FC decreased approximately exponentially in response to increasing time of sample collection. These findings suggest that manure deposition on well-managed pasture at the rates used in this study might have a negligible impact on nutrient content of runoff.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.2000.tb04300.x
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  • 7
    Electronic Resource
    Electronic Resource
    A systematic review of stress and stress management interventions for mental health nurses (2003)
    Oxford, UK : Blackwell Science Ltd
    Journal of advanced nursing 42 (2003), S. 0 
    Details
    ISSN: 1365-2648
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background.  Health care professionals in the United Kingdom (UK) appear to have higher absence and sickness rates than staff in other sectors, and stress may be a reason for nurses leaving their jobs. These problems need to be addressed, particularly in the mental health field, if current service provision is to be maintained. Aim.  The aim was to identify stressors, moderators and stress outcomes (i.e. measures included those related to stress, burnout and job satisfaction) for mental health nurses, as these have clear implications for stress management strategies. Method.  A systematic review of research published in English between 1966 and 2000 and undertaken in the UK that specifically identified participants as mental health nurses was carried out to determine the effectiveness of stress management interventions for those working in mental health nursing. Studies from non-UK countries were examined as potential models of good practice. The study was limited to primary research papers that specifically involved mental health nurses, where the health outcomes measured were stressors, moderators and stress outcomes and where sufficient data was provided. Results.  The initial search identified 176 papers, of these 70 met the inclusion criteria. Seven studies have been reported since the completion of the review and have been included in this article. Sixty-nine focused on the stressors, moderators and stress outcomes and eight papers identified stress management techniques. Relaxation techniques, training in behavioural techniques, stress management workshops and training in therapeutic skills were effective stress management techniques for mental health nurses. Methodological flaws however, were detracted from the rigour of many of the studies. Conclusions.  The review demonstrated that a great deal is known about the sources of stress at work, about how to measure it and about the impact on a range of outcome indicators. What was found to be lacking was a translation of these results into practice, into research that assessed the impact of interventions that attempt to moderate, minimize or eliminate some of these stressors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2648.2003.02600.x
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  • 8
    Electronic Resource
    Electronic Resource
    QUALITY OF RUNOFF FROM PLOTS WITH SIMULATED GRAZING (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 36 (2000), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: : Grazed pastures represent a potential source of non-point pollution. In comparison to other nonpoint sources (e.g., row-cropped lands), relatively little information exists regarding possible magnitudes of nutrient losses from grazed pasture, how those losses are affected by management variables, and how the losses can be minimized. The objective of this study was to measure concentrations of nitrogen (N), phosphorus (P), and solids in runoff from fescue plots and relate those measurements to simulated forage management strategy. The study was conducted at the University of Kentucky Maine Chance Agricultural Experiment Station north of Lexington. Plots (2.4 m wide by 6.1 m long) were constructed and established in Kentucky 31 fescue (Festuca arundinacea Schreb.) to represent pasture. The experimental treatments applied to the plots varied in terms of forage height and material applied (none, manure, or manure and urine). Runoff was sampled for six simulated rainfall events applied over the summer of 1997 and analyzed for nitrate N (NO3-N), ammonia N (NH3-N), total Kjeldahl N (TKN), ortho-P (PO4-P), total P (TP), and total suspended solids (TSS). All runoff constituents exhibited dependence on the date of simulated rainfall with generally higher concentrations measured when simulated rainfall followed relatively dry periods. The effects of forage height and manure addition were mixed. Highest runoff N concentrations were associated with the greatest forage heights, whereas highest P concentrations occurred for the least forage heights. Manure/urine addition increased runoff P concentrations relative to controls (no manure/urine) for both the greatest and least forage heights, but runoff N concentrations were increased only for the greatest forage heights. These findings indicate that runoff of N and P is at least as sensitive to amount and proximity of preceding rainfall and suggest that managing forage to stimulate growth and plant uptake can reduce runoff of N.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.2000.tb05710.x
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  • 9
    Electronic Resource
    Electronic Resource
    Long-term oscillation of corticosterone following intermittent cocaine (2000)
    Springer
    Journal of neural transmission 107 (2000), S. 369-375 
    Details
    ISSN: 1435-1463
    Keywords: Keywords: Oscillation, cocaine, sensitization, corticosterone.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary. We have shown that repeated administration of cocaine, as well as other drugs and nondrug stressors, can induce alternating increases and decreases in several neurotransmitter and endocrine endpoints, which we call oscillation. Oscillation studies have typically used 3–4 pretreatments with cocaine or other agents, raising the question of whether oscillation lasts beyond this point. Using plasma corticosterone as our endpoint measure, we therefore inquired whether oscillation would persist across eight administrations of cocaine over a 28-day period. We report oscillation of corticosterone levels persisting across all eight cocaine groups. Our data also indicate that the degree of oscillation increases with the intertreatment interval.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007020050031
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  • 10
    Electronic Resource
    Electronic Resource
    A Photographic Method for recording Activity and Behaviour in a Group of Small Animals (1959)
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 625-626 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Nielsen's method has a disadvantage in that each photograph of the insects is compared with its predecessor to give an activity value based upon the number of insects which have changed position in the interval. Each number obtained from such a comparison contains within it an unknown factor, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/183625a0
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