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Thermus scotoductus, sp.nov., a pigment-producing thermophilic bacterium from hot tap water in Iceland and including Thermus sp. X-1 1994 Kristjansson, J.K., Institute of Biology, University of Iceland, 108 Reykjavik, Iceland
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Systematic and applied microbiology
Periodical, Abbrev.
Syst.Appl.Microbiol.
Pub Date Free Form
1994/
Volume
17
Issue
1
Start Page
44
Other Pages
50
Notes
Place of Publication
ISSN/ISBN
0723-2020
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Thermophilic, aerobic heterotrophic bacteria, producing a water soluble dark brown melanin-like pigment, were isolated from a hot water pipeline in a small town in southern Iceland. The bacteria stained Gram-negative, are short rods, 1.5 μm long and 0.5 μm in diameter. The cells are usually single or in pairs. A very dense peptidoglycan layer was seen as well as cytoplasmic membrane and an outer membrane. The bacteria are nonmotile and do not form spores. They could grow at 42-73°C with optimum growth temperature of 65°C and optimum pH at 7.5. The bacteria were oxidase and catalase positive, sensitive to the antibiotics penicillin, erythromycin, tetracyclin, chloramphenicol and streptomycin but resistant to polymyxin B and rifampicin. The GC was about 64.5%. The isolates were compared to other known aerobic, heterotrophic bacteria and turned out to resemble to colourless Thermus strain X-1, which was also found to produce the brown pigment. The DNA:DNA similarity between the new isolates and Thermus X-1 was about 83%, whereas the similarity with Thermus aquaticus was about 46%. The new isolates together with strain X-1 are therefore considered to represent a new species, Thermus scotoductus.
Descriptors
ampicillin, antibiotic agent, carbenicillin, catalase, chloramphenicol, erythromycin, gentamicin, kanamycin, meticillin, oxidoreductase, penicillin G, peptidoglycan, polymyxin B, rifampicin, streptomycin, tap water, tetracycline, antibiotic resistance, article, bacterial cell wall, Iceland, nonhuman, priority journal, thermophilic bacterium, Thermus, water contamination
Links
Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Kristjansson,J. K., Hjorleifsdottir,S., Marteinsson,V. T., Alfredsson,G. A.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
What should be our attitude towards the problem of permeation through pipes for drinking water supply 1986
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
H2O
Periodical, Abbrev.
H2O
Pub Date Free Form
1986/
Volume
19
Issue
5
Start Page
96; 99+83
Other Pages
96; 99+83
Notes
Place of Publication
ISSN/ISBN
0166-8439
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
The author briefly describes, in relation to the historical background, how the problem of permeation emerged. The large scale soil contamination discovered in 1980 in Lekkerkerk is pointed out. It was the motive for the Dutch government to start a legislative programme for abatement of soil contamination in the Netherlands. In addition it focussed the attention on the phenomenon of permeation. The author stresses the importance of a fundamental approach to the problem. In striving for a solution of the problem of permeation, the policy has to be focussed not too much on the application of non permeable water pipes but on practising the hygienic principle that waterpipes should not be laid in contaminated soil.
Descriptors
drinking water, abstract report, human, pipeline, prevention, water supply
Links
Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Krul,W. E. M. C.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Seasonal variations in the occurrence of environmental mycobacteria in potable water 1995 Kubalek, I., 77900 Olomouc, Czech Republic
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
APMIS
Periodical, Abbrev.
APMIS
Pub Date Free Form
1995/
Volume
103
Issue
5
Start Page
327
Other Pages
330
Notes
Place of Publication
ISSN/ISBN
0903-4641
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
A fluctuation in the prevalence of environmental mycobacteria in relation to nutritional conditions in nature has been repeatedly described in the literature. A seasonal difference in the potable water supply system has not yet been documented. Potable water samples from the supply systems of 16 identical localities were analyzed. Samples of running water and tap swabs or tap scrapings were collected twice a year, in the spring and in the autumn. The samples were processed as stipulated by the international standards. McNemar's test was used to analyze the difference in the occurrence of environmental mycobacteria between the vernal and the autumnal samples. A significant change in the presence of environmental mycobacteria in the potable water supply system was observed, the vernal samples yielding more positive results, This finding supports other observations respecting surface water. We suggest that this effect on the potable water supply system may be caused by the change in temperature. Contamination rates were similar, with no statistically significant differences between running water samples and those from swabs or scrapings. No time trend in the period 1984-1989 respecting the prevalence of mycobacteria was detected. Direct microscopy showed massive colonization with environmental mycobacteria of the potable water supply system. The public health consequences of these findings should be further evaluated, as colonization of water pipes can be associated with outbreaks of mycobacterial disease in immunocompromised patients. There has also been an increase in the incidence of mycobacterioses in the North Moravian region in recent years.
Descriptors
water, article, environmental sanitation, Mycobacterium, nonhuman, priority journal, seasonal variation, water contamination
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Kubalek,I., Komenda,S.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
The spring-fall variations in the prevalence of environmental mycobacteria in drinking water supply system 1995 Kubalek, I., 779 00 Olomouc, Czech Republic
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Central European journal of public health
Periodical, Abbrev.
Cent.Eur.J.Public Health
Pub Date Free Form
1995/
Volume
3
Issue
3
Start Page
146
Other Pages
148
Notes
Place of Publication
ISSN/ISBN
1210-7778
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
The fluctuation in the prevalence of environmental mycobacteria in relation to nutritional conditions in nature was repeatedly described in literature. The seasonal difference in potable water supply system had not yet been documented. Potable water samples from water supply systems of 16 localities were analyzed. The samples of running water, and tap swabs or tap scrapings were collected twice a year, in the spring and in the autumn. McNemar's test was used to analyze the difference of the occurrence of environmental mycobacteria between the vernal and the autumnal samples. A significant change in the presence of environmental mycobacteria in the potable water supply system was observed: the vernal samples yielded more positive results. This finding supports other observations of superficial water. We infer that this effect in potable water supply system may be caused by the change in temperature. Contamination rates were similar with no statistically significant difference between running water samples and that of swabs or scrapings. No time trend in the period 1984 - 1989 in the prevalence of myobacteria was detected. Direct microscopy showed massive colonisation with environmental mycobacteria of potable water supply system. Public health consequences of these findings should be further evaluated, as colonisation of water pipes can be associated with outbreaks of mycobacterial disease in immunocompromised patients. These has been also an increase in the incidence of mycobacterioses in North Moravian Region in recent years.
Descriptors
drinking water, article, Czechoslovakia, mycobacteriosis, seasonal variation
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Kubalek,I., Komenda,S., Mysak,J.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Determination of the blood lead concentration in blood donors from the City of Leipzig and its vicinity 1999 Kuchenbecker, D., Institut fur Arbeitsmedizin, Sozialmed. der Universitat 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
1999/
Volume
34
Issue
1
Start Page
32
Other Pages
35
Notes
Place of Publication
ISSN/ISBN
0944-6052
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Aim of the study: Blood lead concentrations of a population are usually used as indicator of lead exposure. The purpose of this investigation was to determine the blood lead levels of the general population in Leipzig. Moreover, the influence of the water pipes from lead on blood lead levels was investigated. Methods and subjects: Blood lead determinations were performed by atomic absorption spectrometry with a graphite furnace. Lead concentrations in venous blood were measured in 681 volunteers (18 to 68 years of age). Of these persons, 98 men and 94 women lived in houses with lead water pipes. Results: Median values of blood lead levels were significantly higher in participants with lead pipes than in those without lead pipes. The median values of blood lead levels were 68 μg/l for men with lead pipes and 47 μg/l for men without lead pipes. For women, the corresponding median values were 57 and 34 μg/l, respectively. Conclusion: In spite of the relatively high percentage of persons with water pipes lead- containing, the geometric means of the blood lead levels for males (54 μg/l) and females (42 μg/l) obtained in the present study were similar to the values reported in other studies.
Descriptors
lead, adult, article, atomic absorption spectrometry, blood donor, blood transfusion, drug determination, female, fluid intake, Germany, human, lead blood level, lead poisoning, major clinical study, male, occupational exposure, pipeline, population research, venous blood
Links
Book Title
Bestimmung der blutbleikonzentrationen bei blutspendern in der Stadt Leipzig und ihrer umgebung
Database
Embase
Publisher
Data Source
Embase
Authors
Kuchenbecker,D., Schaffernicht,H., Edel,E., Grau,H.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Lead levels in bone samples as a marker of environmental exposure to lead 2001 Kuchenbecker, D., Institut für Arbeitsmedizin, Sozialmedizin der Univ. 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
2001/
Volume
36
Issue
9
Start Page
435
Other Pages
439
Notes
Place of Publication
ISSN/ISBN
0944-6052
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
The blood lead and bone lead concentrations in the tibia and femur were determined by graphite furnace atomic absorption spectrometry (GFAAS) in patients who were undergoing endoprosthesis surgery of the hip joint and knee joint, respectively. 85 persons from Leipzig were included in the study (58 women and 27 men, 45 to 86 years of age), some of whom lived in old houses with lead water pipes. The influence of the cumulative long-term exposure to environmental sources (water pipes containing lead) on the bone lead level was investigated. Blood lead was found to be in the range from 10 to 101 μg/l, with medians of 41 μg/l in men and 31 μg/l in women. The lead concentrations in the femur were in the range from 0.4 to 6.8 μg/g dry weight with a mean of 2.7 ± 1.3 μg/g dry weight. The concentrations in the tibia were found to be higher, between 1.0 and 29.7 μg/l dry weight with a mean of 8.4 ± 6.8 μg/g dry weight. The tibia lead levels of the participants in this study closely correlated with the length of time they had lived in old houses with lead water pipes. By determining the level of lead in the tibia, it is possible to estimate both previous occupational exposure to lead and non-occupational exposure.
Descriptors
lead, adult, aged, article, atomic absorption spectrometry, controlled study, endoprosthesis, environmental exposure, female, femur, hip surgery, human, knee surgery, lead blood level, lead poisoning, major clinical study, male, occupational exposure, tibia
Links
Book Title
Bleigehalt in knochenproben als marker einer umweltbedingten bleibelastung
Database
Embase
Publisher
Data Source
Embase
Authors
Kuchenbecker,D., Schaffernicht,H., Krämer,D.
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
Bubbling hookah smoke through heat-solubilized curcumin/turmeric and incorporation of the curry spice as an additive or filter in cigarettes to minimize tobacco smoke-related toxicants 2009
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Med Hypotheses
Periodical, Abbrev.
Med.Hypotheses
Pub Date Free Form
Volume
73
Issue
3
Start Page
462
Other Pages
3
Notes
ID: 19435657
Place of Publication
ISSN/ISBN
Accession Number
Language
en
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Descriptors
Curcuma/chemistry, Curcumin/chemistry, Filtration/methods, Smoke, Spices, Tars/chemistry, Tars/isolation & purification, Gases/chemistry, Hot Temperature, Solubility, Ultrafiltration/methods
Links
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2709159/?tool=pubmed; http://dx.doi.org/10.1016/j.mehy.2009.04.005
Book Title
Database
MEDLINE; http://www.globalhealthlibrary.net/
Publisher
Data Source
Authors
Kurien,Biji T., Scofield,R. H.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Chemical reactions in double-stranded nucleic acids. IX. Directed introduction of substituted pyrophosphate bonds into DNA structure 1990 Kuznetsova, S.A.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Bioorganicheskaia khimiia
Periodical, Abbrev.
Bioorg.Khim.
Pub Date Free Form
/
Volume
16
Issue
2
Start Page
219
Other Pages
225
Notes
Place of Publication
ISSN/ISBN
0132-3423
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
An effective synthesis of oligodeoxyribonucleotides containing a substituted pyrophosphate bond in the definite position of the sugar-phosphate backbone has been developed by template-directed condensation of two heptanucleotides. One of them containing 5'-phosphate group to be activated and 3'-phosphate group of the other being substituted with ethoxy-, buthylamino-, morpholino- or ethyl glycinate residues. Water-soluble carbodiimide (EDAC) proved to be more efficient in the phosphate group activation than N-hydroxybenzotriazole ester (yields of substituted pyrophosphates 35-80 and 10-15% respectively). The substituted pyrophosphate bong is quite stable in neutral aqueous solution. Mild conditions of selective cleavage of this bond yielding the initial oligonucleotides were found.
Descriptors
DNA, oligodeoxyribonucleotide, pyrophosphate, article, chemistry, molecular genetics, nucleotide sequence, synthesis
Links
Book Title
Khimicheskie reaktsii v dvuspiral'nykh nukleinovykh kislotakh. IX. Napravlennoe vvedenie zameshchennykh pirofosfatnykh sviazei v strukturu DNK.
Database
MEDLINE
Publisher
Data Source
Embase
Authors
Kuznetsova,S. A., Ivanovskaia,M. G., Shabarova,Z. A.
Original/Translated Title
URL
Date of Electronic
PMCID
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