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Contact Voltage Measured in Residences: Implications to the Association between Magnetic Fields and Childhood Leukemia 2002 Kavet, R., Environment Department, EPRI, Palo Alto, CA 94303, United States
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Bioelectromagnetics
Periodical, Abbrev.
Bioelectromagnetics
Pub Date Free Form
/
Volume
23
Issue
6
Start Page
464
Other Pages
474
Notes
Place of Publication
ISSN/ISBN
0197-8462
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
We measured magnetic fields and two sources of contact current in 36 homes in Pittsfield, MA. The first source, VP-W is the voltage due to current in the grounding wire, which extends from the service panel neutral to the water service line. This voltage can cause contact current to flow upon simultaneous contact with a metallic part of the water system, such as the faucet, and the frame of an appliance, which is connected to the panel neutral through the equipment-grounding conductor. The second is VW-E, the voltage between the water pipe and earth, attributable to ground currents in the water system and magnetic induction from nearby power lines. In homes with conductive water systems and drains, VW-E can produce a voltage between the faucet and drain, which may produce contact current into an individual contacting the faucet while immersed in a bathtub. VP-W was not strongly correlated to the magnetic field (both log transformed) (r = 0.28; P < 0.1). On the other hand, VW-E was correlated to the residential magnetic field (both log transformed) (r=0.54; P < 0.001), with the highest voltages occurring in homes near high voltage transmission lines, most likely due to magnetic induction on the grounding system. This correlation, combined with both frequent exposure opportunity for bathing children and substantial dose to bone marrow resulting from contact, lead us to suggest that contact current due to VW-E could explain the association between high residential magnetic fields and childhood leukemia. © 2002 Wiley-Liss, Inc.
Descriptors
article, bone marrow cell, childhood disease, conductor, contact voltage, correlation analysis, disease association, dose response, electric potential, equipment design, flow measurement, human, immersion, leukemia, magnetic field, priority journal, residential magnetic field, water supply
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Kavet,R., Zaffanella,L. E.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Low-cost failure sensor design and development for water pipeline distribution systems 2002 Khan, A., Dept. of Mechanical/Med. Engineering, University of Bradford, Bradford BD7 1DP, United Kingdom
Source Type
Print(0)
Ref Type
Generic
Periodical, Full
Water Science and Technology
Periodical, Abbrev.
Water Sci. Technol.
Pub Date Free Form
2002/
Volume
45
Issue
5-Apr
Start Page
207
Other Pages
215
Notes
Place of Publication
ISSN/ISBN
0273-1223
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
This paper describes the design and development of a new sensor which is low cost to manufacture and install and is reliable in operation with sufficient accuracy, resolution and repeatability for use in newly developed systems for pipeline monitoring and leakage detection. To provide an appropriate signal, the concept of a "failure" sensor is introduced, in which the output is not necessarily proportional to the input, but is unmistakably affected when an unusual event occurs. The design of this failure sensor is based on the water opacity which can be indicative of an unusual event in a water distribution network. The laboratory work and field trials necessary to design and prove out this type of failure sensor are described here. It is concluded that a low-cost failure sensor of this type has good potential for use in a comprehensive water monitoring and management system based on Artificial Neural Networks (ANN).
Descriptors
accuracy, artificial neural network, calibration, conference paper, controlled study, cost, pipeline, sensor, water management, water supply
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Khan,A., Widdop,P. D., Day,A. J., Wood,A. S., Mounce,S. R., Machell,J.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Trends and pattern of tobacco consumption in rural women of Pakistan 2002
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
PAFMJ - Pakistan Armed Forces Medical Journal
Periodical, Abbrev.
Pub Date Free Form
Volume
52
Issue
2
Start Page
208
Other Pages
12
Notes
ID: 68689
Place of Publication
ISSN/ISBN
Accession Number
Language
english
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
A cross sectional study of the trends and pattern of tobacco consumption in rural women of selected villages of Pakistan was conducted to know the existing situation. Total 13 villages were selected according to the proportion of population of each province and accordingly six, four, two and one district from Punjab, Sindh, NWFP, and Baluchistan were selected respectively through simple random sampling. From each village 100 women of age 15 years and above were interviewed at random. Out of 1300 women, 468 36%] were found tobacco users. Majority of tobacco users 30.34%] were smokers of Hubble bubble. Tobacco smoking/Chewing was started at a mean age of 23.19 +/- 10.77 years. The mean age for current tobacco consumption was 39.50 +/- 14.68.A high tobacco consumption rate was observed in illiterate, divorced/widow and women farmers. Hubble bubble smoking in Punjab, Naswar taking in NWFP and Balochistan and Biri smoking in Sindh is common most form of tobacco consumption
Descriptors
Humans, Female, 13 - 19 YEARS, ABO Blood-Group System - 45 YEARS, Absorption - 64 YEARS, OVER 64 YEARS, Tobacco, Rural Population, Tobacco Use Cessation
Links
http://pesquisa.bvsalud.org/ghl/resource/en/emro-68689
Book Title
Database
GHL; http://www.globalhealthlibrary.net/
Publisher
Data Source
Authors
Khan,Iqbal Ahmad, Siddiqui,Muhammad Saeed
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Recurrent inner ear decompression sickness associated with a patent foramen ovale 2002 Department of Ear, Nose, and Throat Surgery (HNO), University of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany. christoph_klingmann@med.uni-heidelberg.de
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Archives of Otolaryngology--Head & Neck Surgery
Periodical, Abbrev.
Arch.Otolaryngol.Head.Neck.Surg.
Pub Date Free Form
May
Volume
128
Issue
5
Start Page
586
Other Pages
588
Notes
LR: 20060328; JID: 8603209; ppublish
Place of Publication
United States
ISSN/ISBN
0886-4470; 0886-4470
Accession Number
PMID: 12003593
Language
eng
SubFile
Case Reports; Journal Article; AIM; IM
DOI
ocn10516 [pii]
Output Language
Unknown(0)
PMID
12003593
Abstract
Isolated inner ear injuries occurring during shallow scuba dives are an uncommon manifestation of decompression sickness in recreational divers. We describe a patient who presented with the typical symptoms of inner ear involvement after 2 independent dives within the decompression limits. The diver reported symptoms of unilateral (right-sided) hearing loss, tinnitus, and vertigo after dives to 35 and 50 m. After treatment with hyperbaric oxygen, his symptoms completely resolved. To confirm the hypothesis of inner ear decompression sickness (IEDCS), we examined the patient for a right-to-left shunt by cranial Doppler ultrasound and found a patent foramen ovale. The existence of a patent foramen ovale is suspected to be a risk factor for developing neurological symptoms of decompression sickness. There was no evidence of any other risk factors, so we suggest that the relevant right-to-left shunt in our patient may have been the predisposing factor that caused the inner ear symptoms during his scuba dive.
Descriptors
Adult, Barotrauma/complications/diagnosis/therapy, Diving/injuries, Ear, Inner/injuries, Heart Septal Defects, Atrial/complications/ultrasonography, Humans, Hyperbaric Oxygenation, Male, Risk Factors, Ultrasonography, Doppler
Links
Book Title
Database
Publisher
Data Source
Authors
Klingmann,C., Knauth,M., Ries,S., Kern,R., Tasman,A. J.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Belowground carbon pools and processes in different age stands of Douglas-fir. 2002 Klopatek, J.M., Department of Plant Biology, Arizona State University, Tempe, AZ 85287-1601, USA.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Tree physiology
Periodical, Abbrev.
Tree Physiol.
Pub Date Free Form
/
Volume
22
Issue
3-Feb
Start Page
197
Other Pages
204
Notes
Place of Publication
ISSN/ISBN
0829-318X
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Forest floor material and soil organic matter may act as both a source and a sink in global CO2 cycles. Thus, the ecosystem processes controlling these pools are central to understanding the transfers of carbon (C) between the atmosphere and terrestrial systems. To examine these ecosystem processes, the effect of stand age on temporal carbon source-sink relationships was examined in 20-year-old, 40-year-old and old-growth stands of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) in the Cascade Mountains of south-central Washington State. Belowground C and nitrogen (N) storage and soil respiration were measured. In addition, nylon mesh bags containing homogenized soils from each site were buried at the respective sites to quantify root ingrowth and potential C sequestration and loss. The sites supporting the 20- and 40-year-old stands had soil C stores reflecting the C contributions from logging residue, coarse woody debris and stumps left after harvest. Because the N-fixer red alder (Alnus rubra Bong.) comprised 33% of the 40-year-old stand, this site had significantly greater concentrations and pools of N in the forest floor than sites without red alder. This N-rich site had consistently lower soil CO2 efflux rates during the growing season than the sites supporting the 20-year-old and old-growth stands. Estimated annual soil C efflux was 1367, 883 and 1194 g m-2 for the sites supporting the 20-, 40- and old-growth stands, respectively. These values are higher than previously reported values. Root ingrowth was significantly less in the 40-year-old stand than in the 20-year-old stand, and both young stands showed markedly less fine root growth than the old-growth stand. At the sites supporting the young stands, C and N were lost from the soil bags, whereas there was an increase in C and N in the soil bags at the site supporting the old-growth stand. The fine root growth and soil respiration data support the hypothesis that belowground C allocation decreases with increasing fertility. Quantification of the source-sink relationship of soil C at the three stands based on litterfall, relative root ingrowth and soil respiration measurements was compromised because of significant CO2 flux from decaying organic matter in the young stands.
Descriptors
carbon, carbon dioxide, nitrogen, alder, article, Douglas fir, ecosystem, physiology, soil, tree, United States
Links
Book Title
Database
MEDLINE
Publisher
Data Source
Embase
Authors
Klopatek,J. M.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
The lead content in teeth as a maker of environmental exposure to lead 2002 Kuchenbecker, D., Inst. fur Arbeitsmed./Sozialmedizin, Universität Leipzig, 04107 Leipzig, Germany
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Arbeitsmedizin Sozialmedizin Umweltmedizin
Periodical, Abbrev.
Arbeitsmed.Sozialmed.Umweltmed.
Pub Date Free Form
2002/
Volume
37
Issue
8
Start Page
388
Other Pages
393
Notes
Place of Publication
ISSN/ISBN
0944-6052
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Aim of the study: The aim of the study was to investigate whether the lead concentration in teeth is influenced by the lead content of the material of drinking water pipes. Collective and method: The lead contents of 235 permanent teeth extracted from 190 inhabitants of Leipzig aged 16-93 years, some of whom had lived in houses with water pipes containing lead from birth, were determined with a graphite furnace atomic absorption spectrometer. Results: The lead levels in tooth roots were in the range from 0.5 to 31.1 μg/g dry weight (median 7.0 μg/g). Significant differences were found in the lead concentrations in teeth between people living in houses with water pipes containing lead and those in houses without. Furthermore, the lead content depends on the age of the patient. The tooth lead of younger adults (aged 16-40 years) without additional lead exposure was in the range from 0.5 to 4.6 μg/g dry weight (median 2.2 μg/g), the range for the tooth lead of older dental patients (aged 61-93 years) was found to be from 6.6 to 6.8 μg/g dry weight (median 6.7 μg/g). In the case of patients living in houses with water pipes containing lead, the median lead concentrations in teeth were 7.2 μg/g for younger adults and 14.5 μg/g for older adults. Conclusions: Both previous occupational exposure to lead and non-occupational exposure can be detected in teeth many years after the end of exposure.
Descriptors
drinking water, lead, adolescent, adult, aged, article, atomic absorption spectrometry, environmental exposure, heavy metal poisoning, household, human, lead poisoning, major clinical study, tooth extraction, water contamination
Links
Book Title
Bleigehalt in zähnen als marker einer umweltbedingten bleibelastung
Database
Embase
Publisher
Data Source
Embase
Authors
Kuchenbecker,D., Schaffernicht,H., Raddatz,M.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Antifungal susceptibility of Candida biofilms: unique efficacy of amphotericin B lipid formulations and echinocandins 2002 Division of Infectious Diseases, Department of Medicine, University Hospitals of Cleveland and Case Western Reserve University, Cleveland, Ohio 44106, USA.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Antimicrobial Agents and Chemotherapy
Periodical, Abbrev.
Antimicrob.Agents Chemother.
Pub Date Free Form
Jun
Volume
46
Issue
6
Start Page
1773
Other Pages
1780
Notes
LR: 20140612; GR: AI-36219/AI/NIAID NIH HHS/United States; GR: AI07024/AI/NIAID NIH HHS/United States; GR: AI35097-03/AI/NIAID NIH HHS/United States; GR: P30 CA43703-12/CA/NCI NIH HHS/United States; JID: 0315061; 0 (Anti-Bacterial Agents); 0 (Antifungal A
Place of Publication
United States
ISSN/ISBN
0066-4804; 0066-4804
Accession Number
PMID: 12019089
Language
eng
SubFile
Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.; IM
DOI
Output Language
Unknown(0)
PMID
12019089
Abstract
Biofilms, likely the predominant mode of device-related microbial infection, exhibit resistance to antimicrobial agents. Evidence suggests that Candida biofilms have dramatically reduced susceptibility to antifungal drugs. We examined antifungal susceptibilities of Candida albicans and Candida parapsilosis biofilms grown on a bioprosthetic model. In addition to conventional agents, we determined if new antifungal agents (triazoles, amphotericin B lipid formulations, and echinocandins) have activities against Candida biofilms. We also explored effects of preincubation of C. albicans cells with subinhibitory concentrations (sub-MICs) of drugs to see if they could modify subsequent biofilm formation. Finally, we used confocal scanning laser microscopy (CSLM) to image planktonic- and biofilm-exposed blastospores to examine drug effects on cell structure. Candida biofilms were formed on silicone elastomer and quantified by tetrazolium and dry weight (DW) assays. Susceptibility testing of fluconazole, nystatin, chlorhexidine, terbenafine, amphotericin B (AMB), and the triazoles voriconazole (VRC) and ravuconazole revealed resistance in all Candida isolates examined when grown as biofilms, compared to planktonic forms. In contrast, lipid formulations of AMB (liposomal AMB and AMB lipid complex [ABLC]) and echinocandins (caspofungin [Casp] and micafungin) showed activity against Candida biofilms. Preincubation of C. albicans cells with sub-MIC levels of antifungals decreased the ability of cells to subsequently form biofilm (measured by DW; P < 0.0005). CSLM analysis of planktonic and biofilm-associated blastospores showed treatment with VRC, Casp, and ABLC resulted in morphological alterations, which differed with each agent. In conclusion, our data show that Candida biofilms show unique susceptibilities to echinocandins and AMB lipid formulations.
Descriptors
Amphotericin B/administration & dosage/pharmacology, Anti-Bacterial Agents/pharmacology, Antifungal Agents/administration & dosage/pharmacology, Biofilms/drug effects, Candida/drug effects/ultrastructure, Culture Media, Drug Resistance, Microbial, Echinocandins, Fungal Proteins, Liposomes, Microbial Sensitivity Tests, Microscopy, Confocal, Peptides, Peptides, Cyclic, Polyenes/pharmacology, Prosthesis-Related Infections/microbiology, Triazoles/pharmacology
Links
Book Title
Database
Publisher
Data Source
Authors
Kuhn,D. M., George,T., Chandra,J., Mukherjee,P. K., Ghannoum,M. A.
Original/Translated Title
URL
Date of Electronic
PMCID
PMC127206
Editors
Co-operation of private water management sector with municipalities 2002 Kyncl, M., Severomoravske vodovody, kanalizace Ostrava a.s., 709 45 Ostrava, Czech Republic
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Water Science and Technology: Water Supply
Periodical, Abbrev.
Water Sc.Technol.Water Supply
Pub Date Free Form
2002/
Volume
2
Issue
4
Start Page
219
Other Pages
224
Notes
Place of Publication
ISSN/ISBN
1606-9749
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
After 1990 a gradual privatisation of the water and sewerage sector began in the Czech Republic as well as in other Central and Eastern European countries. State assets of public water pipelines and sewerage were transferred to towns and municipalities and joint stock companies were established. Two types of companies appeared-operational and ownership companies. The first type is the operational company that operates the infrastructure assets of public water pipelines and sewerage. These assets stay in the ownership of municipalities. A long term operational contract is agreed that solves the relationship between the owners and operators. The second type is the ownership company that directly owns the infrastructure assets of public water pipelines. Towns and municipalities in this case became shareholders of those companies. At the end of nineties, big international companies bought shares of both operational and ownership companies. Municipalities have to, by law, ensure the operation of public water pipelines. However, by the sale of shares they have lost a possibility to participate in decision making. A question about future co-operation between towns and municipalities and ownership companies appears. An example of the North Moravian Water and Sewerage Works Company was used to describe a possible way of co-operation between a private company and the municipalities on whose territory the company operates. Contracts between the ownership company and particular municipalities were agreed. This solution turned out to be complicated, so the municipalities affiliated and established Water Management Association. The objective of the Association is to promote common interests of the municipalities in relation to the water company. A contract was agreed between the Water Management Association and the company about co-operation in the area of water tariff setting and public waterworks' development.
Descriptors
article, Czech Republic, decision making, Europe, government, organization, pipeline, water management
Links
Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Kyncl,M.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Self-reported school difficulties and tobacco use among fourth- to seventh-grade students 2002 Dept. of Epidemiology and Public Health, University of Miami School of Medicine, PO Box 016069 (R-699), Miami, FL 33101, USA. dlee@med.miami.edu
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
The Journal of school health
Periodical, Abbrev.
J.Sch.Health
Pub Date Free Form
Nov
Volume
72
Issue
9
Start Page
368
Other Pages
373
Notes
LR: 20071115; JID: 0376370; ppublish
Place of Publication
United States
ISSN/ISBN
0022-4391; 0022-4391
Accession Number
PMID: 12557632
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM; N
DOI
Output Language
Unknown(0)
PMID
12557632
Abstract
This study examined the relationship between academic and behavioral difficulties at school, and tobacco use in students. Participants included 1,219 students in fourth to seventh grade at the time of enrollment. Interviews were repeated eight months later with 85% of baseline participants. Telephone interviews assessed use of cigarettes, cigars, and chewing tobacco; students also were asked if they liked school, how often they got in trouble at school, and how well they were doing in school. At baseline, students reporting school difficulties were 1.4-5.6 times more likely to report a lifetime history of cigarette, cigar, and chewing tobacco use relative to students who did not report these difficulties. Average to below-average academic performance at baseline was predictive of new cigarette use at the eight-month follow-up (Relative Risk = 3.35; 95% Confidence Interval = [1.36, 8.22]). Self-reported school difficulties are associated with lifetime use of all major forms of tobacco and are predictive of future cigarette use in fourth- to seventh-grade students.
Descriptors
Adolescent, Adolescent Behavior, Child, Child Behavior Disorders/epidemiology, Cohort Studies, Female, Florida/epidemiology, Humans, Interviews as Topic, Male, Risk Factors, Smoking/epidemiology, Students
Links
Book Title
Database
Publisher
Data Source
Authors
Lee,D. J., Trapido,E., Rodriguez,R.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Legionella contamination of hospital water supplies: monitoring of private healthcare facilities in Bologna, Italy 2002 Department of Medicine and Public Health, University of Bologna, Italy.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
The Journal of hospital infection
Periodical, Abbrev.
J.Hosp.Infect.
Pub Date Free Form
Mar
Volume
50
Issue
3
Start Page
220
Other Pages
223
Notes
LR: 20081121; CI: Copyright 2002; JID: 8007166; ppublish
Place of Publication
England
ISSN/ISBN
0195-6701; 0195-6701
Accession Number
PMID: 11886199
Language
eng
SubFile
Journal Article; IM
DOI
10.1053/jhin.2002.1180 [doi]
Output Language
Unknown(0)
PMID
11886199
Abstract
The hot water supplies of 11 private healthcare facilities in the city of Bologna, Italy, were monitored for the presence of Legionella spp. Four samplings were made in each establishment over a period of one year and in total 121 samples were collected from distribution points situated near the water-boiler and inside the wards (taps and showers). Legionellae were recovered from all the water supplies in question: Legionella spp. in 86.8% of samples, L. pneumophila in 82.6% of samples. L. pneumophila was found in all the water supplies at levels averaging above 10(4)cfu/L in five health facilities and reaching a maximum concentration of 10(7)cfu/L. The only parameter to have affected the presence of legionellae was the water temperature, which was seen to be inversely correlated to the concentration of Legionella spp. Despite the high levels of contamination from L. pneumophila, no cases of nosocomial Legionnaires' disease were reported during the period of the study.
Descriptors
Cross Infection/epidemiology, Hospitals, Private, Hot Temperature, Humans, Italy, Legionella/isolation & purification, Legionnaires' Disease/epidemiology, Water Microbiology, Water Supply
Links
Book Title
Database
Publisher
The Hospital Infection Society
Data Source
Authors
Legnani,P. P., Leoni,E., Corradini,N.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors