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  • 1
    Electronic Resource
    Electronic Resource
    Application of Platinum and Titanium Materials as an Electrode for Hygiene Purpose (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 544-545 (May 2007), p. 199-202 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The aim of this study was to investigate the application of electrochemical technology inrelation to the electrolysis of water in specific fields, including mouthrinses for the control ofperiodontal disease and the cleaning of contact lenses. A platinum (Pt) coated titanium (Ti) electrodecell (Pt/Ti cell, Dolki Korea Ltd.) was used for electrochemical experiments. Using the disinfection oroxidation potential of the Pt/Ti cell, sterilized water was prepared for clinical testing. Anexperimental group used mouthrinses with the sterilized water, where as the control group did not. Inthe experimental group, the gingival and plaque indices, the probing pocket depth and clinicalattachment level all showed statistically significant decreases, but in the control group showedsignificant increases (P〈0.05). The electrochemical sterilization of water using the Pt/Ti cell was alsoapplied for the cleaning of contaminated contact lenses. SEM (Scanning Electron Microscope) datademonstrated that a foreign body adhered to the contract lens could be removed during the electrolysisof water containing the contaminated contact lens
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.544-545.199.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    Improvement in Wear Resistance of Nano WC-Co Coatings Fabricated by Detonation Gun Spraying (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 539-543 (Mar. 2007), p. 1264-1269 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Nano structured WC-Co coatings with carbide size of 100−200nm were fabricated bydetonation gun spraying. The fabricated nano coatings showed improved hardness and wearresistance compared to micron WC-Co coatings. Considerable phase decomposition of WC to W2Cand amorphous phase in nano coatings was detected, which is known to degrade wear resistance ofcoatings. In order to improve the wear resistance of the coatings by recovering of dissociatedcarbide phases, post heat treatment was conducted in Ar environment at temperature range of400−900°C. Harness, fracture toughness and wear resistance of nano coatings were significantlyimproved by post heat treatment. The improved properties were elucidated and discussed in termsof microstructure and phase compositions
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.1264.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Characteristics of Different Molecular Weight Chitosan Films Affected by the Type of Organic Solvents (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 67 (2002), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : Chitosan films were prepared using 3 chitosan molecular weights and 4 organic acid solvents without plasticizer. Tensile strength (TS) and elongation (E) ranged from 6.7 to 150.2 MPa, and from 4.1 to 117.8%, respectively. Water vapor permeability (WVP) and oxygen permeability (OP) ranged from 0.3 to 0.7 ng-m/m2-s-Pa and OP from 0.4 to 5.8 × 10 −8 cc/m2-day-atm, respectively. TS increased with chitosan molecular weight. Acetic acid resulted in the toughest films followed by malic, lactic, and citric acid, respectively. Films prepared with citric acid had the highest E values. WVP was not influenced significantly by the molecular weight of chitosan. OP of films prepared with malic acid was the lowest, followed by acetic, lactic, and citric acid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2002.tb11382.x
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  • 4
    Electronic Resource
    Electronic Resource
    Induction of Resistance of Salmonella typhimurium to Environmental Stresses by Exposure to Short-Chain Fatty Acids (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 65 (2000), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : Short-chain fatty acids (SCFA), which are widely used as food preservatives and are also present in the gastrointestinal (GI) tract of animals at high concentrations, may play a role in the persistence of Salmonella typhimurium in the environment. To test the hypothesis, S. typhimurium was adapted to SCFA for 1 h and the % survivors against various stress conditions was determined. For adaptation, the SCFA mixtures at the concentrations found in small (SI) and large intestine (LI) were used. The % survivors against extreme acid (pH 3.0), high osmolarity (2.5 M NaCl), and reactive oxygen (20 mM H2O2) was greatly increased by exposure to SCFA LI, but to a much less extent by SCFA SI. The results suggest that encountering SCFA by S. typhimurium in the large intestine of the host food animal or food materials treated with them may increase the persistence of S. typhimurium in food animal pre-and postharvest production by enhancing overall stress resistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2000.tb09413.x
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  • 5
    Electronic Resource
    Electronic Resource
    The puzzling price behavior of treasury bills that mature at the turn of calendar months
    Amsterdam : Elsevier
    Journal of Financial Economics 16 (1986), S. 267-283 
    Details
    ISSN: 0304-405X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0304-405X(86)90063-2
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  • 6
    Electronic Resource
    Electronic Resource
    Metropolitan transportation in seoul
    Amsterdam : Elsevier
    Habitat International 10 (1986), S. 141-153 
    Details
    ISSN: 0197-3975
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geography , Sociology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0197-3975(86)90016-0
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  • 7
    Electronic Resource
    Electronic Resource
    SURVIVAL OF A SALMONELLA TYPHIMURIUM POULTRY MARKER STRAIN ADDED AS A DRY INOCULUM TO ZINC AND SODIUM ORGANIC ACID AMENDED FEEDS (2003)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food safety 23 (2003), S. 0 
    Details
    ISSN: 1745-4565
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The effects of different organic acid compounds on the survival of a dry inoculum of Salmonella typhimurium marker strain added to poultry feed were determined. Organic acids were added as 1% Zn or Na salts (w/w) to poultry feeds and stored at room temperature for 9 days. Reduction of S. typhimurium populations from 0 to day 9 was not substantially different between poultry layer ration nonamended feed (96.76%) and Zn acetate (99.72%) or Zn propionate (99.60%) amended feed. However, over 90% reduction of S. typhimurium populations occurred in Zn acetate and Zn propionate amended feed by day 3 while poultry layer ration populations reached 90% reduction by day 5. S. typhimurium populations after 9 days were nearly 40% more reduced in Na propionate amended feed than Na acetate amended feed. The results of this study indicated 1% Zn compounds may have potential to reduce survival of S. typhimurium in a poultry diet during the early stages of storage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-4565.2003.tb00369.x
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  • 8
    Electronic Resource
    Electronic Resource
    DENATURING GRADIENT GEL ELECTROPHORESIS (DGGE) AS A RAPID METHOD FOR ASSESSING GASTROINTESTINAL TRACT MICROFLORA RESPONSES IN LAYING HENS FED SIMILAR ZINC MOLT INDUCTION DIETS (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of rapid methods and automation in microbiology 12 (2004), S. 0 
    Details
    ISSN: 1745-4581
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Induced molting through feed withdrawal can change the microenvironment of crop and ceca sufficiently to allow them to be the sites of Salmonella colonization in the chicken intestine. This study compares the denaturing gradient gel electrophoresis (DGGE) profiles of microbial crop and cecal communities among molted hens fed similar zinc acetate or zinc propionate amended molt diets to hens either undergoing feed withdrawal or hens full fed and not molted. Dendrograms of DGGE amplicon patterns indicated over 85% similarity of cecal communities between zinc acetate fed hens and zinc propionate fed hens and over 60% similarity of crop communities between zinc acetate fed hens and zinc propionate fed hens. Rapid comparison of complex gastrointestinal microflora profiles in laying hens fed similar diets is possible using DGGE.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-4581.2004.tb00048.x
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  • 9
    Electronic Resource
    Electronic Resource
    FEEDING LOW CALCIUM AND ZINC MOLT DIETS SUSTAINS GASTROINTESTINAL FERMENTATION AND LIMITS SALMONELLA ENTERICA SEROVAR ENTERITIDIS COLONIZATION IN LAYING HENS (2004)
    Oxford, UK and Malden, USA : Blackwell Science Inc
    Journal of food safety 24 (2004), S. 0 
    Details
    ISSN: 1745-4565
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The objective of these experiments was to determine whether alternative molting diets would minimize Salmonella enterica serovar Entertitidis (S. Enteritidis) colonization in molting hens. Hens were randomly assigned to four treatment groups of 12 hens either full-fed (nonmolt, NM), molted by feed withdrawal (molt, M), a low calcium (LC containing 800 mg calcium), or LC diet supplemented with 110 mg zinc/ kg of diet (LC-ZN) in two trials. All hens were challenged orally with 10 5SE on day 4 of experiment. Hen body weight loss was significantly (P 〈 0.05) increased and ovarian weight was significantly (P 〈 0.05) decreased in hens fed the LC or LC-ZN diets compared to NM. Cecal lactic acid concentrations were significantly (P 〈 0.05) increased in hens fed alternative molting diets. Feed withdrawal molted hens exhibited significantly (P 〈 0.05) more S. Enteritidis positive and S. Enteritidis crop, cecal, and organ colonization than NM, LC and LC-ZN hens. Alternative molt diets retain sufficient fermentative activity to limit S. Enteritidis colonization and therefore may have potential to avoid the risk of increasing S. Enteritidis colonization associated with feed withdrawal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-4565.2004.00529.x
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  • 10
    Electronic Resource
    Electronic Resource
    INFLUENCE OF OXIDATION-REDUCTION REDUCTANTS ON SALMONELLA TYPHIMURIUM GROWTH RATES AFTER INITIAL pH ADJUSTMENT AND ZINC COMPOUND ADDITION (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of rapid methods and automation in microbiology 12 (2004), S. 0 
    Details
    ISSN: 1745-4581
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The objective of this study was to examine the separate influence of acidic pH, reductants (cysteine and sulfide) and zinc compounds (Zn acetate and Zn sulfate) during anaerobic growth of a S. typhimurium poultry isolate in rich or minimal media. The anaerobic growth of a S. typhimurium poultry isolate in TSB medium was significantly inhibited by either acidic initial pH or higher concentrations of Zn acetate. S. typhimurium anaerobic growth in M9 minimal medium was significantly inhibited by either acidic pH or higher concentrations of Zn acetate or Zn sulfate. Most anaerobic growth rates of the S. typhimurium poultry isolate in acidic media and with higher concentrations of Zn acetate or Zn sulfate were less than 0.10 h-1. The overall anaerobic growth rates of S. typhimurium were inhibited more in the presence (0.089 h-1) of reductants than in the absence (0.102 h-1) of reductants in M9 medium. Results in this study suggest that either increasing Zn concentration or decreasing initial pH can reduce growth rate of foodborne Salmonella under anaerobic growth conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-4581.2004.tb00062.x
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