Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin最新文献_第2页

The validity of the TTC-test for dehydrogenase activity of activated sludges in the presence of chemical inhibitors. ttc测试在化学抑制剂存在下活性污泥脱氢酶活性的有效性。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin Pub Date : 1979-10-01

G Cenci, G Morozzi

{"title":"The validity of the TTC-test for dehydrogenase activity of activated sludges in the presence of chemical inhibitors.","authors":"G Cenci, G Morozzi","doi":"","DOIUrl":"","url":null,"abstract":"Dehydrogenase activity of activated sludges coming from a laboratory plant, has been evaluated by the TTC-test in the presence of some chemical toxics. The results obtained have shown that, for all inhibitors tested, there exists a range of concentrations in which the dose-response relationship is linear. As far as the comparison of the inhibition data from the TTC-test and from the Oxygen-respiration rate is concerned, the results obtained show that the inhibitors tested may be divided into three groups: (i) inhibitors which inhibit the Oxygen-respiration rate more than th Dehydrogenase activity (Zn2+, Cd2+, Ni2+, Hg2+, Zn(CN)4(2-), Cd(CN)4(2-)); (II) inhibitors for which there are no significant differences in the inhibition value obtained by the two methods (CN-, C6H5O-, C6Cl5O-, C6H3ClO-, Hg(CN)4(2-)); (iii) inhibitors which inhibit the dehydrogenase activity more than theoxygen-respiration rate (Cu2+, CrO4(2-), Ni(CN)4(2-)). The inhibition data obtained by other authors evaluating by direct methods (COD reduction, turbidity of the final effluent etc.) the performance of pilot or laboratory plants in the presence of some of the toxics used in the present research, are in sufficient agreement with the dehydrogenase inhibition data obtained in this work.","PeriodicalId":76867,"journal":{"name":"Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin","volume":"169 3-4","pages":"320-30"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11746618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[The influence of electric 50 Hz fields on humans (author's transl)]. [50赫兹电场对人体的影响(作者译)]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin Pub Date : 1979-10-01

S Schuy, R Waibel

引用次数: 0

[Preliminary physiological and psychological results under various electroclimatic conditions (author's transl)]. [在各种电气候条件下的初步生理和心理结果(作者译)]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin Pub Date : 1979-10-01

H Riedl, H Strampfer, G Fischer, J R Möse, N Geyer

{"title":"[Preliminary physiological and psychological results under various electroclimatic conditions (author's transl)].","authors":"H Riedl, H Strampfer, G Fischer, J R Möse, N Geyer","doi":"","DOIUrl":"","url":null,"abstract":"Before the start of a research project which was to stretch over a period of several years, characteristics of the control space were to be defined. Therefore the influence of spherics and 50 Hz-alternating fields in the unscreened control space were studied.--Pupils (Foster children) were the test subjects. Each test subject was subjected to the conditions of the control space as well as the testing space.--Two classes of parameters were studied. Blood sugar, blood pressure and pulse rate were recorded as physiological dimensions. Short-term memory, powers of concentration as well as the subjective well-being were the psychological parameters.--As to the parameters examined, no significant difference between testing and control space conditions was recorded. In order to examine whether the climatic factors of the control space have an antagonistic effect on the variables in question, their influence was studied separately in two further investigations. In order to clarify this problem, spherics-impulses in the 10 Khz range were given in screened space (\"Vorversuch 2\"/preliminary experiment 2), then--in, \"Vorversuch 3\"/preliminary experiment 3 - a 50 Hz-alternating field was applied. For each of the climatic factors under examination the influence on each single parameter was negative. The assumption of an antagonistic effect which would hinder the definition of standard spatial conditions was thereby shown to be incorrect.","PeriodicalId":76867,"journal":{"name":"Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin","volume":"169 3-4","pages":"342-5"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11746619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[The electroaerosoltherapy (author's transl)]. [电喷雾疗法(作者译)]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin Pub Date : 1979-10-01

G G Lombardo

引用次数: 0

[Investigations on the effect of positive or negative small ions on the catecholamine content of the mouse brain (author's transl)]. [正负小离子对小鼠脑内儿茶酚胺含量影响的研究[作者译]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin Pub Date : 1979-10-01

H Udermann, G Fischer

引用次数: 0

[Examinations on the behaviour of grampositive and gramnegative bacteria in aqua bidest and tap-water at different initial colony counts and different temperatures (author's transl)]. [不同初始菌落计数和不同温度下自来水和自来水中革兰氏阳性菌和革兰氏阴性菌行为的检测[作者译]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin Pub Date : 1979-10-01

N Dickgiesser, F Rittweger

{"title":"[Examinations on the behaviour of grampositive and gramnegative bacteria in aqua bidest and tap-water at different initial colony counts and different temperatures (author's transl)].","authors":"N Dickgiesser, F Rittweger","doi":"","DOIUrl":"","url":null,"abstract":"Experiments were done about the behaviour of 5 different strains of Staph. aureus, Strept. faecalis, E. coli, Ser. marcescens and P. aeruginosa in aqua bidest and sterile tap water at 20 degrees C, 30 degrees C and 40 degrees C. The behaviour of 3 different initial colony counts in each case was examined. Colony forming units (CFU) were evaluated at the beginning and after 1, 2, 4, 6 and 24 h. CFU were reduced at Staph. aureus and E. coli in aqua bidest and tap water not earlier than after 4 h, but mostly after 24 h. In Strept. faecalis CFU were reduced in aqua bidest at 40 degrees C after 24 h, in tap water at 40 degrees C after 4 h, but there were no changes of CFU in both media at 20 degrees C or 30 degrees C. Ser. marcescens strains were growing in aqua bidest and tap water after 24 h at 20 degrees C. P. aeruginosa strains were reduced in aqua bidest at all temperatures but they were growing in tap water after 24 h. Reduction or growth of all strains did not depend on initial colony count during examination time, changing of CFU turned out to be quicker at 40 degrees C than at 20 degrees C. It is the conclusion that in humidifiers and nebulizers CFU will be different from initial colony count not earlier than after 6 h. Growth will be seen after 6 until 24 h if there are no particular nutritive organic compounds.","PeriodicalId":76867,"journal":{"name":"Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin","volume":"169 3-4","pages":"308-19"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11340184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Hydrotherapy pools, microbiological and chemical results (author's transl)]. [水疗池，微生物和化学结果(作者翻译)]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin Pub Date : 1979-10-01

M F Klenner, G Weber

引用次数: 0

A finding of Yersinia pseudotuberculosis in well water. 井水中假结核耶尔森菌的发现。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin Pub Date : 1979-10-01

E Aldova, A Brezínová, J Sobotková

引用次数: 0

[Aquatic myxobacteria as indicators in the evaluation of drinking water quality (author's transl))]. [水生黏菌作为评价饮用水水质的指标(作者译)]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin Pub Date : 1979-10-01

W Gräf, G Pelka

{"title":"[Aquatic myxobacteria as indicators in the evaluation of drinking water quality (author's transl))].","authors":"W Gräf, G Pelka","doi":"","DOIUrl":"","url":null,"abstract":"Aquatic myxobacteria were shown to be good indicators of surface contamination of drinking water, or water filtered by an inadequate soil profile, both in experiments with sterilized or biologically active soil profiles, resp., and in actual comparison data obtained in practical drinking water analyses. In experimental investigations with artificial profiles, aquatic myxobacteria were retained to a considerably greater degree than E. coli or P. fluorescens due to stronger forces of adhesion. In a number of bacteriological drinking water analyses, this property was confirmed insofar as aquatic myxobacteria could regularly be demonstrated when inspecting hygienically deficient wells or springs. The confirmed presence of E. coli, on the other hand, showed a considerably lesser correlation with the results of on the spot evaluations of hygienic conditions. It must be urgently advised to include the search for aquatic myxobacteria in bacteriological drinking water analyses, since, contrary to the demonstration of E. coli, not only the actual but, in addition, the potential hazard of contamination of drinking water with bacteria present in superficial soil strata is indicated.","PeriodicalId":76867,"journal":{"name":"Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin","volume":"169 3-4","pages":"225-39"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11340179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Studies in medical meteorology at the "Zentralanstalt für Meteorologie und Geodynamik" at Vienna (author's transl)]. [维也纳"中央<s:1>气象与地球动力学研究中心"的医学气象学研究(作者译)]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, Betriebshygiene, praventive Medizin Pub Date : 1979-10-01

H Reuter, A Machalek

引用次数: 0