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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Intensive care medicine 23 (1997), S. 243-245 
    ISSN: 1432-1238
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 28 (1985), S. 543-552 
    ISSN: 1432-1041
    Keywords: thiopentone ; anaesthesia ; intravenous anaesthesia ; multi-stage infusion ; exponential infusions ; pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Several multi-stage infusion regimens and a computer controlled exponentially decreasing infusion regimen were evaluated in twelve patients undergoing head and neck surgery or neurosurgery. Thiopentone dosage was based on the mean of pharmacokinetic parameter values from the literature and adjusted for each patient's lean body mass in order to rapidly achieve a predetermined plasma thiopentone concentration of 15 or 20 µg/ml in the period following the initial bolus dose to induce anaesthesia. Anaesthesia was satisfactory in all cases. Plasma thiopentone concentrations were maintained between 10–20 µg/ml during infusion in the five patients who received either a four or five stage infusion and in the six patients who received the exponential infusion, but not in the single patient who received a two-stage infusion. The mean recovery time was 111 min. The plasma concentrations of total and unbound thiopentone at awakening showed little intersubject variability, despite considerable differences in total dose and duration of infusion, suggesting the absence of acute tolerance to the drug. Plasma clearance of total thiopentone correlated strongly with calculated lean body mass and to a lesser extent with total body weight suggesting that lean body mass, in particular, should be an accurate predictor of thiopentone maintenance dose requirements. This study shows that it is feasible to use thiopentone as a primary anaesthetic agent during surgery by administering the drug either as an exponentially decreasing infusion or as an infusion comprising 4 or 5 stepwise decreasing rates.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 9 (1973), S. 0 
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: The effect of feedlot runoff on the environmental quality of the Cottonwood River in east central Kansas was evaluated by analysis of community structure of benthic macroinvertebrates using the species diversity index, (d). The benthic fauna along the study reach was dominated by mayflies, caddisflies, midges, riffle beetles, and the pelecypod, Sphaerium. Sixty-five taxa were identified during the study; the benthic fauna was most abundant during the 1968–69 segment of the study. However, the mean 3 per station indicated the river was subject to moderate environmental stress, and 3's of those stations immediately downstream from feedlots were significantly lower than the 3 at the control station. There was a significant increase in d's during the 1970–71 segment of the study, following the closing of two feedlots. The results indicate periodic feedlot runoff had a continuing adverse affect on the environmental quality of the river, but recovery was rapid as the organic load on the river was reduced.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Behavior Therapy 9 (1978), S. 368-376 
    ISSN: 0005-7894
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Psychology
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0743-0167
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geography , Economics
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Behavior Therapy and Experimental Psychiatry 1 (1970), S. 93-94 
    ISSN: 0005-7916
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Psychology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK; Malden, USA : Blackwell Science Inc
    Birth 32 (2005), S. 0 
    ISSN: 1523-536X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background:  Home-like birth settings have been established in or near conventional labour wards for the care of pregnant women who prefer and require little or no medical intervention during labour and birth.Objectives:  Primary: to assess the effects of care in a home-like birth environment compared to care in a conventional labour ward. Secondary: to determine if the effects of birth settings are influenced by staffing or organizational models or geographical location of the birth centre.Search strategy:  We searched the Cochrane Pregnancy and Childbirth Group trials register (18 May 2004) and handsearched eight journals and two published conference proceedings.Selection criteria:  All randomized or quasi-randomized controlled trials that compared the effects of a home-like institutional birth environment to conventional hospital care.Data collection and analysis:  Standard methods of the Cochrane Collaboration Pregnancy and Childbirth Group were used. Two review authors evaluated methodological quality. Double data entry was performed. Results are presented using relative risks and 95% confidence intervals.Main results:  Six trials involving 8677 women were included. No trials of freestanding birth centres were found. Between 29% and 67% of women allocated to home-like settings were transferred to standard care before or during labour. Allocation to a home-like setting significantly increased the likelihood of: no intrapartum analgesia/anaesthesia (four trials; n = 6703; relative risk (RR) 1.19, 95% confidence interval (CI) 1.01 to 1.40), spontaneous vaginal birth (five trials; n = 8529; RR 1.03, 95% CI 1.01 to 1.06), vaginal/perineal tears (four trials; n = 8415; RR 1.08, 95% CI 1.03 to 1.13), preference for the same setting the next time (one trial; n = 1230; RR 1.81, 95% CI 1.65 to 1.98), satisfaction with intrapartum care (one trial; n = 2844; RR 1.14, 95% CI 1.07 to 1.21), and breastfeeding initiation (two trials; n = 1431; RR 1.05, 95% CI 1.02 to 1.09) and continuation to six to eight weeks (two trials; n = 1431; RR 1.06, 95% CI 1.02 to 1.10). Allocation to a home-like setting decreased the likelihood of episiotomy (five trials; n = 8529; RR 0.85, 95% CI 0.74 to 0.99). There was a trend towards higher perinatal mortality in the home-like setting (five trials; n = 8529; RR 1.83, 95% CI 0.99 to 3.38). No firm conclusions could be drawn regarding the effects of staffing or organizational models.Authors’ conclusions:  When compared to conventional institutional settings, home-like settings for childbirth are associated with modest benefits, including reduced medical interventions and increased maternal satisfaction. Caregivers and clients should be vigilant for signs of complications.Citation:  Hodnett ED, Downe S, Edwards N, Walsh D. Home-like versus conventional institutional settings for birth. The Cochrane Database of Systematic Reviews 2005, Issue 1. Art. No.: CD000012.pub2. DOI: 10.1002/14651858.CD000012.pub2.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Veterinary radiology & ultrasound 35 (1994), S. 0 
    ISSN: 1740-8261
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 73 (1998), S. 2808-2810 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We discuss trends in residual stress as a function of film thickness, growth temperature, and substrate orientation for GaN/AlN/6H–SiC heterostructures. Films are mostly compressive for samples less than about 0.7 μm thick, are tensile up to about 2 μm, then abruptly become less tensile with stress values near 1 kbar thereafter. We interpret this as a successive relief of lattice mismatch and thermal stresses culminating in a catastrophic relief by unknown mechanisms at moderate thicknesses. These data indicate that relaxation processes in these heterostructures are not as well understood as previously supposed. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 50 (1995), S. 0 
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The utilisation of the pre-operative ECG in patients undergoing routine surgery was investigated in 354 adult patients over a 2-week period. Sixty-four percent of patients had an ECG pre-operatively. An ECG was not performed in 17% of patients who, current hospital policy suggests, should have had one. In contrast, an ECG was performed in 33% of patients who, hospital policy suggests, have no need of one (all of which were normal), which represented 18% of the total number of pre-operative ECGs performed. In 62% of patients with known cardiac disease, and 44% of patients with strong risk factors for ischaemic heart disease (in the absence of known disease) the ECG was abnormal. This compares with only 7% of patients aged over 50 with no risk factors in whom the ECG was abnormal. These findings suggest that there is room for improvement in the utilisation of the pre-operative ECG, which may have cost implications.
    Type of Medium: Electronic Resource
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