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Search: WFRF:(Hallstrom T)

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  • Boxall, A. B. A., et al. (author)
  • Pharmaceuticals and Personal Care Products in the Environment: What Are the Big Questions?
  • 2012
  • In: Environmental Health Perspectives. - : Environmental Health Perspectives. - 0091-6765 .- 1552-9924. ; 120:9, s. 1221-1229
  • Journal article (peer-reviewed)abstract
    • BACKGROUND: Over the past 10-15 years, a substantial amount of work has been done by the scientific, regulatory, and business communities to elucidate the effects and risks of pharmaceuticals and personal care products (PPCPs) in the environment. OBJECTIVE: This review was undertaken to identify key outstanding issues regarding the effects of PPCPs on human and ecological health in order to ensure that future resources will be focused on the most important areas. DATA SOURCES: To better understand and manage the risks of PPCPs in the environment, we used the "key question" approach to identify the principle issues that need to be addressed. Initially, questions were solicited from academic, government, and business communities around the world. A list of 101 questions was then discussed at an international expert workshop, and a top-20 list was developed. Following the workshop, workshop attendees ranked the 20 questions by importance. DATA SYNTHESIS: The top 20 priority questions fell into seven categories: a) prioritization of substances for assessment, b) pathways of exposure, c) bioavailability and uptake, a effects characterization, e) risk and relative risk, f) antibiotic resistance, and g) risk management. CONCLUSIONS: A large body of information is now available on PPCPs in the environment. This exercise prioritized the most critical questions to aid in development of future research programs on the topic.
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  • Hallstrom, J., et al. (author)
  • Performance of a modular wideband 1000 kV HVDC reference divider
  • 2014
  • In: CPEM Digest (Conference on Precision Electromagnetic Measurements). - 9781479952052 ; , s. 782-783
  • Conference paper (peer-reviewed)abstract
    • This paper describes the performance of a wideband HVDC reference divider. The divider concept is a shielded modular divider and it is intended for traceable calibration of HVDC measuring systems up to 1000 kV in customers' laboratories. The first priority in the design was the accuracy of HVDC measurements. In addition, the divider was designed to have wide bandwidth, both to enable measurement of ripple voltages and to prevent damage during possible flashovers. © 2014 IEEE.
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  • Draxler, K., et al. (author)
  • International comparison of current transformer calibration systems up to 10 kA at 50 Hz frequency
  • 2016
  • In: 2016 Conference on Precision Electromagnetic Measurements (CPEM 2016). - 9781467391344
  • Conference paper (peer-reviewed)abstract
    • Current transformers (CTs) are precision devices that scale high currents down to values that can be easily handled by measurement equipment. To support CT applications in revenue metering, a comparison on AC current transformer calibration systems was performed among 15 European national metrology institutes using a precision CT as the travelling device. The first comparison results for the transformation ratios (4, 5, 6, 8, 10) kA/5 A of the travelling CT at nominal burden of 5 VA and 15 VA indicate good agreement between the participating laboratories. The main differences are found for phase displacement, at least partly caused by the instability of the traveling standard.
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  • Draxler, K., et al. (author)
  • Results of an International Comparison of Instrument Current Transformers up to 10 kA at 50 Hz Frequency
  • 2018
  • In: CPEM 2018 - Conference on Precision Electromagnetic Measurements. - 9781538609736
  • Conference paper (peer-reviewed)abstract
    • Traceability of the current ratio is crucial for the measurement of electrical energy in revenue metering. A comparison of the AC current ratio was therefore performed within EURAMET in the time period 2012-2016, using a precision CT as the traveling device. The Czech Metrology Institute (CMI) as coordinator processed the measurement results of the 15 European participating laboratories. The comparison of the results for transformer ratios of (4, 5, 6, 8, 10) kA 5 A at 15 VA burden and (4 and 10) kA 5 A ratios at 5 VA burden indicates good agreement between the participating laboratories. The main differences are found for phase displacement, at least in part due to instability of the traveling standard. .
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  • Henriksson, S, et al. (author)
  • Infrequent use of antidepressants in depressed individuals (an interview and prescription database study in a defined Swedish population 2001-2002)
  • 2006
  • In: European psychiatry : the journal of the Association of European Psychiatrists. - : Cambridge University Press (CUP). - 0924-9338. ; 21:6, s. 355-360
  • Journal article (peer-reviewed)abstract
    • Purpose:To investigate whether antidepressants are over-used, under-used, or misused, by determining to what extent the depressed individuals in a defined population are treated with antidepressant medication and, from the other end, to what extent prescribed antidepressants are aimed for the treatment of depression.Subjects and method:From an individual based prescription database in the County of Jämtland, 2048 individuals representative for the general population were selected. The presence of current depression in these individuals was screened by a mailed self-screening questionnaire. Individuals with depression according to the questionnaire were interviewed by a psychiatrist using a structured interview (SCAN) to confirm the diagnosis. Their use of antidepressants was obtained from the prescription database.Results:Sixty-two (4.5%) out of 1375 were diagnosed with depression and 17 (27%) of these were taking an antidepressant. In addition 44 individuals, currently not depressed, were taking antidepressants. Twenty-five of these were interviewed per telephone and it was found that the indications for 18 of them were continuation treatment of depression, and for seven of them pain, sleep disturbance or anxiety.Conclusion:Antidepressants appear to be under-used in the population. Only one in four of the depressed individuals was treated with antidepressant medication. Those who had antidepressant medication without being currently depressed had, with few exceptions, either continuation treatment for depression in remission or treatment on other approved indications.
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  • Herlitz, Johan, 1949, et al. (author)
  • Treatment of asystole and PEA
  • 2009
  • In: Resuscitation. - : Elsevier Ireland Ltd. - 1873-1570 .- 0300-9572. ; 80:9, s. 975-6
  • Journal article (peer-reviewed)abstract
    • Recent reports consistently point to a substantial decline in the incidence of ventricular fibrillation (VF) as the initial rhythm observed by Emergency Medical Service (EMS) responders and a complementary increase in pulseless electrical activity (PEA) and asystole. Historically, efforts at improving survival have focused primarily on patients found in VF. Consequently, the approach for other patients has included frequent pauses in cardiopulmonary resuscitation (CPR) to check for VF followed by shock when VF is observed. However, the "yield" of survivors comes largely from the non-shocked patients. Therefore, it is critical that we start evaluating treatments specifically for the PEA and asystole groups.
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  • Result 1-50 of 70

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