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https://www.readbyqxmd.com/read/28108022/evaluation-of-a-method-for-removing-cesium-and-reducing-the-volume-of-leaf-litter-from-broad-leaved-trees-contaminated-by-the-fukushima-daiichi-nuclear-accident-during-the-great-east-japan-earthquake
#1
Shigeki Harada, Mitsunori Yanagisawa
The town of Marumori in southern Miyagi Prefecture borders on Fukushima Prefecture, and following the accident at the Fukushima Daiichi nuclear power plant, there were concerns about cesium deposition in forested areas. One of the authors of this paper has continually surveyed leaf litter from the forested areas. As leaf litter may be a source of cesium contamination from the forest to downstream areas, we considered a simplified version of wet oxidation, a method previously presented by one of the authors of this study, as a technology to reduce leaf litter weight and cesium concentration, separating radioactive nuclides from non-radioactive ones, in leaf litter...
January 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28101947/combined-surgical-therapy-of-advanced-peri-implantitis-evaluating-two-methods-of-surface-decontamination-a-7-year-follow-up-observation
#2
Frank Schwarz, Gordon John, Andrea Schmucker, Narja Sahm, Jürgen Becker
OBJECTIVES: To assess the long-term outcomes (>4 years) following combined surgical resective/regenerative therapy of advanced peri-implantitis lesions using two surface decontamination methods. MATERIAL & METHODS: Fifteen patients (n = 15 combined supra- and intrabony defects) completed a follow-up observation period of 7 years. The treatment procedure included access flap surgery, granulation tissue removal and implantoplasty at buccally and supracrestally exposed implant parts, and a randomly assigned decontamination of the unmodified intrabony implant surface areas using either (i) an Er:YAG laser (ERL) or (ii) plastic curettes + cotton pellets + sterile saline (CPS)...
November 7, 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28099453/elimination-of-porcine-epidemic-diarrhea-virus-in-an-animal-feed-manufacturing-facility
#3
Anne R Huss, Loni L Schumacher, Roger A Cochrane, Elizabeth Poulsen, Jianfa Bai, Jason C Woodworth, Steve S Dritz, Charles R Stark, Cassandra K Jones
Porcine Epidemic Diarrhea Virus (PEDV) was the first virus of wide scale concern to be linked to possible transmission by livestock feed or ingredients. Measures to exclude pathogens, prevent cross-contamination, and actively reduce the pathogenic load of feed and ingredients are being developed. However, research thus far has focused on the role of chemicals or thermal treatment to reduce the RNA in the actual feedstuffs, and has not addressed potential residual contamination within the manufacturing facility that may lead to continuous contamination of finished feeds...
2017: PloS One
https://www.readbyqxmd.com/read/28098192/wearable-atmospheric-pressure-plasma-fabrics-produced-by-knitting-flexible-wire-electrodes-for-the-decontamination-of-chemical-warfare-agents
#4
Heesoo Jung, Jin Ah Seo, Seungki Choi
One of the key reasons for the limited use of atmospheric pressure plasma (APP) is its inability to treat non-flat, three-dimensional (3D) surface structures, such as electronic devices and the human body, because of the rigid electrode structure required. In this study, a new APP system design-wearable APP (WAPP)-that utilizes a knitting technique to assemble flexible co-axial wire electrodes into a large-area plasma fabric is presented. The WAPP device operates in ambient air with a fully enclosed power electrode and grounded outer electrode...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28095290/study-of-the-microbiological-quality-of-bulgarian-bottled-water-in-terms-of-its-contamination-with-pseudomonas-aeruginosa
#5
Vesela Georgieva, Yulia Dimitrova
BACKGROUND: Due to the widespread use of bottled water, it is important from a hygienic point of view to ensure that these products have good quality and meet the requirements set out in regulations. METHODS: In the period 2000-2013, a large-scale study (2,500 samples) was carried out on the quality of Bulgarian bottled water as per the microbiological parameters laid down in the European and Bulgarian legislation. Standard microbiological methods were applied. RESULTS: There is strong evidence that the most frequently isolated contaminant in these products was Pseudomonas aeruginosa...
December 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/28076466/ozone-therapy-as-an-adjuvant-for-endondontic-protocols-microbiological-ex-vivo-study-and-citotoxicity-analyses
#6
Carlos Goes Nogales, Marina Beloti Ferreira, Antonio Fernando Montemor, Maria Filomena de Andrade Rodrigues, José Luiz Lage-Marques, João Humberto Antoniazzi
Objectives: This study evaluated the antimicrobial efficacy of ozone therapy in teeth contaminated with Pseudomonas aeruginosa, Enterococcus faecalis, and Staphylococcus aureus using a mono-species biofilm model. Parallel to this, the study aimed to evaluate the cytotoxicity of ozone for human gingival fibroblasts. Material and Methods: One hundred and eighty single-root teeth were contaminated with a mono-species biofilm of Enterococcus faecalis, Pseudomonas aeruginosa, and Staphylococcus aureus...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28074652/trends-in-methyl-tert-butyl-ether-concentrations-in-private-wells-in-southeast-new-hampshire-2005-to-2015
#7
Sarah M Flanagan, Joseph P Levitt, Joseph D Ayotte
In southeast New Hampshire, where reformulated gasoline was used from the 1990s to 2007, methyl tert-butyl ether (MtBE) concentrations ≥0.2 μg/L were found in water from 26.7% of 195 domestic wells sampled in 2005. Ten years later in 2015, and eight years after MtBE was banned, 10.3% continue to have MtBE. Most wells (140 of 195) had no MtBE detections (concentrations <0.2 μg/L) in 2005 and 2015. Of the remaining wells, MtBE concentrations increased in 4 wells, decreased in 47 wells, and did not change in 4 wells...
January 11, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28074318/boosted-large-scale-production-and-purification-of-a-thermostable-archaeal-phosphotriesterase-like-lactonase-for-organophosphate-decontamination
#8
Odile Francesca Restaino, Maria Giovanna Borzacchiello, Ilaria Scognamiglio, Elena Porzio, Giuseppe Manco, Luigi Fedele, Cinzia Donatiello, Mario De Rosa, Chiara Schiraldi
Thermostable phosphotriesterase-like lactonases (PLLs) from extremophile archaea, like SsoPox from Sulfolobus solfataricus, are attractive biotechnological tools with industrial applications as organophosphate decontaminants, but their manufacturing still remains an unresolved issue because of the high costs and the low production yields. In this paper, for the first time, an efficient biotechnological process for the production and purification of a recombinant, engineered PLL, SsoPox W263F, expressed in E...
January 11, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28071007/evaluation-the-effect-of-gamma-irradiation-on-microbial-chemical-and-sensorial-properties-of-peanut-arachis-hypogaea-l-seeds
#9
Mahfouz Al-Bachir
BACKGROUND: The aim of the present study was to evaluate the possibility to apply gamma radiation treatment for decontaminating and assuring the quality of peanut seeds. METHODS: The radiation processing was carried out at dose levels of 3, 6 and 9 kGy. The irradiated and non-irradiated (control) samples were stored at room temperature for 12 months, and analyzed for microbial load, proximate composition, sensorial acceptance and chemical properties. RESULTS: The results indicated that gamma irradiation treatment significantly (p < 0...
April 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28067848/chitin-adsorbents-for-toxic-metals-a-review
#10
REVIEW
Ioannis Anastopoulos, Amit Bhatnagar, Dimitrios N Bikiaris, George Z Kyzas
Wastewater treatment is still a critical issue all over the world. Among examined methods for the decontamination of wastewaters, adsorption is a promising, cheap, environmentally friendly and efficient procedure. There are various types of adsorbents that have been used to remove different pollutants such as agricultural waste, compost, nanomaterials, algae, etc., Chitin (poly-β-(1,4)-N-acetyl-d-glucosamine) is the second most abundant natural biopolymer and it has attracted scientific attention as an inexpensive adsorbent for toxic metals...
January 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28066816/from-genomes-to-phenotypes-traitar-the-microbial-trait-analyzer
#11
Aaron Weimann, Kyra Mooren, Jeremy Frank, Phillip B Pope, Andreas Bremges, Alice C McHardy
The number of sequenced genomes is growing exponentially, profoundly shifting the bottleneck from data generation to genome interpretation. Traits are often used to characterize and distinguish bacteria and are likely a driving factor in microbial community composition, yet little is known about the traits of most microbes. We describe Traitar, the microbial trait analyzer, which is a fully automated software package for deriving phenotypes from a genome sequence. Traitar provides phenotype classifiers to predict 67 traits related to the use of various substrates as carbon and energy sources, oxygen requirement, morphology, antibiotic susceptibility, proteolysis, and enzymatic activities...
November 2016: MSystems
https://www.readbyqxmd.com/read/28064016/a-mechanistic-study-on-decontamination-of-methyl-orange-dyes-from-aqueous-phase-by-mesoporous-pulp-waste-and-polyaniline
#12
Donglin Li, Yonggang Yang, Chaozheng Li, Yufang Liu
The dispersion-corrected density functional theory (DFT-D3) is used to investigate the mechanism of mesoporous pulp waste (MPW) and polyaniline (PANI) adsorptive removal methyl orange (MO) dye from their aqueous solutions. The results are absolutely reliable because of the sufficiently accurate method although such big systems are studied. It is demonstrated that hydrogen bond and Van Der Waals interactions play a significant role in MO adsorption by MPW and PANI. For MO adsorption by MPW, hydrogen bond and Van Der Waals interactions are both weakened in S1 state...
January 5, 2017: Environmental Research
https://www.readbyqxmd.com/read/28063730/transmission-of-salmonella-enteritidis-after-endoscopic-retrograde-cholangiopancreatography-because-of-inadequate-endoscope-decontamination
#13
Paul Robertson, Andrew Smith, Margaret Anderson, Jackie Stewart, Kate Hamilton, Sandra McNamee, Evonne T Curran
We report a historic nosocomial outbreak of Salmonella enteritidis affecting 4 inpatients who underwent endoscopic retrograde cholangiopancreatography. The cause was attributed to inadequate decontamination of an on-loan endoscope used over a weekend. This report highlights the risks of using on-loan endoscopes, particularly regarding their commissioning and adherence to disinfection protocols. In an era of increasing antibiotic resistance, transmission of Enterobacteriaceae by endoscopes remains a significant concern...
January 4, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28056807/evaluating-decontamination-protocols-for-the-isolation-of-mycobacterium-ulcerans-from-swabs
#14
Enid Owusu, Mercy J Newman, Amos Akumwena, Elizabeth Bannerman, Gerd Pluschke
BACKGROUND: Mycobacterium ulcerans (M. ulcerans) is the causative agent of Buruli Ulcer (BU) disease. In order to inhibit the growth of the microbial contaminants during culture of M. ulcerans, it is necessary to decontaminate BU samples with effective chemical agents. This study aimed at investigating some selected chemicals as potential decontamination agents for the isolation of M. ulcerans from swabs. RESULTS: Povidone iodine at 0.5 and 1% exhibited the lowest contamination and recovery rate for microbial contaminants and M...
January 5, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28056000/adverse-health-effects-associated-with-living-in-a-former-methamphetamine-drug-laboratory-victoria-australia-2015
#15
Jackie Wright, Michaela E Kenneally, John W Edwards, G Stewart Walker
The manufacture of methamphetamine in clandestine drug laboratories occurs in various locations, including residential houses and apartments. Unlike the controlled manufacture of chemicals and drugs, clandestine manufacture results in the uncontrolled storage, use, generation, and disposal of a wide range of chemicals and the deposit of methamphetamine drug residues on indoor surfaces (1). These residues have been found at high levels on porous and nonporous surfaces and have been shown to persist for months to years (1)...
January 6, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28050896/cost-analysis-of-single-use-ambu-%C3%A2-ascope%C3%A2-and-reusable-bronchoscopes-in-the-icu
#16
S Perbet, M Blanquet, C Mourgues, J Delmas, S Bertran, B Longère, V Boïko-Alaux, P Chennell, J-E Bazin, J-M Constantin
BACKGROUND: Flexible optical bronchoscopes are essential for management of airways in ICU, but the conventional reusable flexible scopes have three major drawbacks: high cost of repairs, need for decontamination, and possible transmission of infectious agents. The main objective of this study was to measure the cost of bronchoalveolar lavage (BAL) and percutaneous tracheostomy (PT) using reusable bronchoscopes and single-use bronchoscopes in an ICU of an university hospital. The secondary objective was to compare the satisfaction of healthcare professionals with reusable and single-use bronchoscopes...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28050669/usa300-a-strain-of-community-associated-methicillin-resistant-staphylococcus-aureus-crossing-belgium-s-borders-outbreak-of-skin-and-soft-tissue-infections-in-a-hospital-in-belgium
#17
K Kaïret, E Ho, D Van Kerkhoven, J Boes, S Van Calenbergh, L Pattyn, P Lemay
OBJECTIVE: to investigate an outbreak of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) USA300 in a hospital setting, and the effect of infection control measures. DESIGN: outbreak investigation and retrospective chart review. SETTING: local inpatient and outpatient clinic. PATIENTS: all patients with a history of skin and soft tissue infections with culture-confirmed methicillin-resistant Staphylococcus aureus USA 300 infection from September, 2014, through June, 2015...
January 3, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28046816/su-f-p-24-radiological-disperse-device
#18
R Alam
PURPOSE: We are now living in a society of constant fear of terrorism. This topic is pertaining to give a general knowledge of what is a radiological dispersion device or RDD and in case of its detonation, what are the options open to public for a safe action in terms of reducing the exposure and knowing the proper steps. These RDD are also called dirty bombs. METHODS: Compared to nuclear weapons, dirty bombs are easy to make. In order for a terrorist organization to construct and detonate a dirty bomb, it must acquire radioactive material by stealing it or buying it through legal or illegal channels...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28044046/contextual-and-psychosocial-determinants-of-effective-handwashing-technique-recommendations-for-interventions-from-a-case-study-in-harare-zimbabwe
#19
Max N D Friedrich, Marc E Binkert, Hans-Joachim Mosler
Handwashing has been shown to considerably reduce diarrhea morbidity and mortality. To decontaminate hands effectively, the use of running water, soap, and various scrubbing steps are recommended. This study aims to identify the behavioral determinants of effective handwashing. Everyday handwashing technique of 434 primary caregivers in high-density suburbs of Harare, Zimbabwe, was observed and measured as an 8-point sum score of effective handwashing technique. Multiple linear and logistic regression analyses were performed to predict observed handwashing technique from potential contextual and psychosocial determinants...
January 2, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28043636/evaluation-the-virulence-of-mycobacterium-bovis-isolated-from-milk-samples-through-histopathological-study-in-laboratory-animals
#20
I M Al-Saqur, A N Al-Thwani, I M Al-Attar, M S Al-Mashhadani
INTRODUCTION: Mycobacterium bovis has a broad host range, and it is the principal agent responsible for tuberculosis (TB) in bovine, domestic and wild mammals. M. bovis also infects human, causing zoonotic TB through ingestion, inhalation and, less frequently by contact with mucous membranes and broken skin. Zoonotic TB was formerly an endemic disease, usually transmitted to man by consumption of raw cow's milk. It is indistinguishable clinically or pathologically from TB caused by M...
December 2016: International Journal of Mycobacteriology
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