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https://www.readbyqxmd.com/read/27910791/effects-of-ethyl-acetate-extracts-from-the-polycephalomyces-nipponicus-isolate-cod-mk1201-ascomycetes-against-human-pathogenic-bacteria-and-a-breast-cancer-cell-line
#1
Kusavadee Sangdee, Prapairat Seephonkai, Benjaporn Buranrat, Nilawan Surapong, Aphidech Sangdee
This study aimed to identify a suitable organic solvent for extracting bioactive compounds from Polycephalomyces nipponicus and to evaluate the antibacterial and anticancer activities of the extracts obtained. Only extracts obtained with ethyl acetate exhibited antibacterial activity, so ethyl acetate was chosen for large-scale extraction. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) against Gram-positive and Gram-negative human pathogenic bacteria of the 3 ethyl acetate-derived extracts-ethyl acetate extract from P...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27907122/biodegradation-of-methyl-tertiary-butyl-ether-mtbe-by-a-microbial-consortium-in-a-continuous-up-flow-packed-bed-biofilm-reactor-kinetic-study-metabolite-identification-and-toxicity-bioassays
#2
Guadalupe Alfonso-Gordillo, César Mateo Flores-Ortiz, Liliana Morales-Barrera, Eliseo Cristiani-Urbina
This study investigated the aerobic biodegradation of methyl tertiary-butyl ether (MTBE) by a microbial consortium in a continuous up-flow packed-bed biofilm reactor using tezontle stone particles as a supporting material for the biofilm. Although MTBE is toxic for microbial communities, the microbial consortium used here was able to resist MTBE loading rates up to 128.3 mg L-1 h-1, with removal efficiencies of MTBE and chemical oxygen demand (COD) higher than 90%. A linear relationship was observed between the MTBE loading rate and the MTBE removal rate, as well as between the COD loading rate and the COD removal rate, within the interval of MTBE loading rates from 11...
2016: PloS One
https://www.readbyqxmd.com/read/27905973/the-paradox-of-verbal-autopsy-in-cause-of-death-assignment-symptom-question-unreliability-but-predictive-accuracy
#3
Peter Serina, Ian Riley, Bernardo Hernandez, Abraham D Flaxman, Devarsetty Praveen, Veronica Tallo, Rohina Joshi, Diozele Sanvictores, Andrea Stewart, Meghan D Mooney, Christopher J L Murray, Alan D Lopez
BACKGROUND: We believe that it is important that governments understand the reliability of the mortality data which they have at their disposable to guide policy debates. In many instances, verbal autopsy (VA) will be the only source of mortality data for populations, yet little is known about how the accuracy of VA diagnoses is affected by the reliability of the symptom responses. We previously described the effect of the duration of time between death and VA administration on VA validity...
October 18, 2016: Population Health Metrics
https://www.readbyqxmd.com/read/27905964/what-is-the-optimal-recall-period-for-verbal-autopsies-validation-study-based-on-repeat-interviews-in-three-populations
#4
Peter Serina, Ian Riley, Bernardo Hernandez, Abraham D Flaxman, Devarsetty Praveen, Veronica Tallo, Rohina Joshi, Diozele Sanvictores, Andrea Stewart, Meghan D Mooney, Christopher J L Murray, Alan D Lopez
BACKGROUND: One key contextual feature in Verbal Autopsy (VA) is the time between death and survey administration, or recall period. This study quantified the effect of recall period on VA performance by using a paired dataset in which two VAs were administered for a single decedent. METHODS: This study used information from the Population Health Metrics Research Consortium (PHMRC) Study, which collected VAs for "gold standard" cases where cause of death (COD) was supported by clinical criteria...
October 18, 2016: Population Health Metrics
https://www.readbyqxmd.com/read/27905939/causes-of-death-in-vanuatu
#5
Karen Carter, Viran Tovu, Jeffrey Tila Langati, Michael Buttsworth, Lester Dingley, Andy Calo, Griffith Harrison, Chalapati Rao, Alan D Lopez, Richard Taylor
BACKGROUND: The population of the Pacific Melanesian country of Vanuatu was 234,000 at the 2009 census. Apart from subsistence activities, economic activity includes tourism and agriculture. Current completeness of vital registration is considered too low to be usable for national statistics; mortality and life expectancy (LE) are derived from indirect demographic estimates from censuses/surveys. Some cause of death (CoD) data are available to provide information on major causes of premature death...
March 15, 2016: Population Health Metrics
https://www.readbyqxmd.com/read/27905538/potential-and-optimization-of-two-phase-anaerobic-digestion-of-oil-refinery-waste-activated-sludge-and-microbial-community-study
#6
Qinghong Wang, Ying Liang, Peng Zhao, Qing X Li, Shaohui Guo, Chunmao Chen
Oil refinery waste activated sludge produced from oil wastewater biological treatment is a major industrial sludge. Two-phase anaerobic digestion of oil refinery waste activated sludge was studied for the first time. Thermal pretreatment under 170 °C is effective on sludge solubilization. At the optimum hydrolytic-acidogenic condition which was pH of 6.5, temperature of 55 °C and HRT of 2 days, 2754 mg/L volatile fatty acids (VFAs) were produced and acetic acid and butyric acid were the key components...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27904890/using-signal-amplification-by-reversible-exchange-sabre-to-hyperpolarise-119-sn-and-29-si-nmr-nuclei
#7
Alexandra M Olaru, Alister Burt, Peter J Rayner, Sam J Hart, Adrian C Whitwood, Gary G R Green, Simon B Duckett
The hyperpolarisation of the (119)Sn and (29)Si nuclei in 5-(tributylstannyl)pyrimidine (ASn) and 5-(trimethylsilyl)pyrimidine (BSi) is achieved through their reaction with [IrCl(COD)(IMes)] (1a) or [IrCl(COD)(SIMes)] (1b) and parahydrogen via the SABRE process. 1a exhibits superior activity in both cases. The two inequivalent pyrimidine proton environments of ASn readily yielded signal enhancements totalling ∼2300-fold in its (1)H NMR spectrum at a field strength of 9.4 T, with the corresponding (119)Sn signal being 700 times stronger than normal...
December 1, 2016: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/27898316/effects-of-iron-and-calcium-carbonate-on-the-variation-and-cycling-of-carbon-source-in-integrated-wastewater-treatments
#8
Zhao Zhimiao, Song Xinshan, Zhao Yufeng, Xiao Yanping, Wang Yuhui, Wang Junfeng, Yan Denghua
Iron and calcium carbonate were added in wastewater treatments as the adjusting agents to improve the contaminant removal performance and regulate the variation of carbon source in integrated treatments. At different temperatures, the addition of the adjusting agents obviously improved the nitrogen and phosphorous removals. TN and TP removals were respectively increased by 29.41% and 23.83% in AC-100 treatment under 1-day HRT. Carbon source from dead algae was supplied as green microbial carbon source and Fe(2+) was supplied as carbon source surrogate...
November 22, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27895708/continuous-production-of-biohythane-from-hydrothermal-liquefied-cornstalk-biomass-via-two-stage-high-rate-anaerobic-reactors
#9
Bu-Chun Si, Jia-Ming Li, Zhang-Bing Zhu, Yuan-Hui Zhang, Jian-Wen Lu, Rui-Xia Shen, Chong Zhang, Xin-Hui Xing, Zhidan Liu
BACKGROUND: Biohythane production via two-stage fermentation is a promising direction for sustainable energy recovery from lignocellulosic biomass. However, the utilization of lignocellulosic biomass suffers from specific natural recalcitrance. Hydrothermal liquefaction (HTL) is an emerging technology for the liquefaction of biomass, but there are still several challenges for the coupling of HTL and two-stage fermentation. One particular challenge is the limited efficiency of fermentation reactors at a high solid content of the treated feedstock...
2016: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/27892816/optimization-of-the-pretreatment-of-wastewater-from-a-slaughterhouse-and-packing-plant-through-electrocoagulation-in-a-batch-reactor
#10
Fábio Orssatto, Maria Hermínia Ferreira Tavares, Flávia Manente da Silva, Eduardo Eyng, Brendown Faria Biassi, Leandro Fleck
The purpose of this study is to evaluate the removal of COD (chemical oxygen demand), turbidity and color of wastewater from a pig slaughterhouse and packing plant through the electrochemical technique and to optimize the ΔV(electric potential difference) and HRT (hydraulic retention time) variables in an electrocoagulation batch reactor using aluminum electrodes. The experimental design used was RCCD (Rotatable Central Composite Design). The characteristics of the effluent were 4730 mg L(-1) to COD, 0.0 mg L(-1) to total aluminum, 6...
November 28, 2016: Environmental Technology
https://www.readbyqxmd.com/read/27892584/a-short-history-of-phototherapy-vitamin-d-and-skin-disease
#11
Paul Jarrett, Robert Scragg
The earliest record between sun exposure and skin disease goes back five millennia to the ancient Egyptians. The modern scientific era of medical light therapy and skin diseases started in 1877 when Downs and Blunt reported that exposure to light inhibited fungal growth in test tubes. Continuing research generated a growing medical interest in the potential the effects of light to treat and cure skin diseases considered as parasitic. This culminated in the awarding of the 1903 Nobel Prize in Medicine to Niels Finsen for his pioneering work showing that light could successfully treat cutaneous mycobacterium tuberculosis (lupus vulgaris), a disfiguring disorder common at the time...
November 28, 2016: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/27887975/human-exposure-to-brominated-flame-retardants-through-the-consumption-of-fish-and-shellfish-in-tarragona-county-catalonia-spain
#12
Laura Trabalón, Lolita Vilavert, José L Domingo, Eva Pocurull, Francesc Borrull, Martí Nadal
The concentrations of 19 brominated flame retardants (BFRs) (8 polybrominated diphenyl ethers (PBDEs), 8 methoxylated PBDEs (MeO-PBDEs) and 3 emerging flame retardants) were determined in 10 species of fish and shellfish widely consumed in Tarragona County (Catalonia, Spain), by pressurized liquid extraction followed by gas chromatography coupled to tandem mass spectrometry. A higher occurrence of PBDEs was found in all the analyzed samples, while MeO-PBDEs were only detected in a few ones and the levels of emerging pollutants were relatively low...
November 23, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27883940/descriptive-and-multivariate-analyses-of-four-tunisian-wastewater-treatment-plants-a-comparison-between-different-treatment-processes-and-their-efficiency-improvement
#13
Ines Boujelben, Youssef Samet, Mouna Messaoud, Mohamed Ben Makhlouf, Sami Maalej
This study was undertaken to evaluate the performance of four wastewater treatment plants/processes over a 4 year period. The wastewater flow evolution, energy consumption, and quality indicator parameters (BOD5, COD and TSS) at the inlet and outlet sites of the plants were determined. In comparing three domestic WWTPs with different wastewater treatment processes, the multivariate analyses (RDA and ANOVA) showed that although the Agareb plant received the highest pollution load, it displayed a high level of removal efficiency especially for COD, BOD, TSS, TKN and NH4(+)...
November 21, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27883922/technical-and-environmental-evaluation-of-an-integrated-scheme-for-the-co-treatment-of-wastewater-and-domestic-organic-waste-in-small-communities
#14
Lucía Lijó, Simos Malamis, Sara González-García, Francesco Fatone, María Teresa Moreira, Evina Katsou
A technical and environmental evaluation of an innovative scheme for the co-treatment of domestic wastewater and domestic organic waste (DOW) was undertaken by coupling an upflow anaerobic sludge blanket (UASB), a sequencing batch reactor (SBR) and a fermentation reactor. Alternative treatment configurations were evaluated with different waste collection practices as well as various schemes for nitrogen and phosphorus removal. All treatment systems fulfilled the required quality of the treated effluent in terms of chemical oxygen demand (COD) and total suspended solids (TSS) concentrations...
October 24, 2016: Water Research
https://www.readbyqxmd.com/read/27883912/development-of-potential-candidate-reference-materials-for-drugs-in-bottom-sediment-cod-and-herring-tissues
#15
Irena Baranowska, Bogusław Buszewski, Jacek Namieśnik, Piotr Konieczka, Sylwia Magiera, Halina Polkowska-Motrenko, Paweł Kościelniak, Renata Gadzała-Kopciuch, Aneta Woźniakiewicz, Zbigniew Samczyński, Kinga Kochańska, Małgorzata Rutkowska
Regular use of a reference material and participation in a proficiency testing program can improve the reliability of analytical data. This paper presents the preparation of candidate reference materials for the drugs metoprolol, propranolol, carbamazepine, naproxen, and acenocoumarol in freshwater bottom sediment and cod and herring tissues. These reference materials are not available commercially. Drugs (between 7 ng/g and 32 ng/g) were added to the samples, and the spiked samples were freeze-dried, pulverized, sieved, homogenized, bottled, and sterilized by γ-irradiation to prepare the candidate materials...
November 21, 2016: Chemosphere
https://www.readbyqxmd.com/read/27878745/characterization-of-a-marine-microbial-community-used-for-enhanced-sulfate-reduction-and-copper-precipitation-in-a-two-step-process
#16
Octavio García-Depraect, Claudia Guerrero-Barajas, Janet Jan-Roblero, Alberto Ordaz
Marine microorganisms that are obtained from hydrothermal vent sediments present a great metabolic potential for applications in environmental biotechnology. However, the work done regarding their applications in engineered systems is still scarce. Hence, in this work, the sulfate reduction process carried out by a marine microbial community in an upflow anaerobic sludge blanket (UASB) reactor was investigated for 190 days under sequential batch mode. The effects of 1000 to 5500 mg L(-1) of SO4(-2) and the chemical oxygen demand (COD)/SO4(-2) ratio were studied along with a kinetic characterization with lactate as the electron donor...
November 23, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27878546/investigation-of-antibiotics-in-health-care-wastewater-in-ho-chi-minh-city-vietnam
#17
Thi-Dieu-Hien Vo, Xuan-Thanh Bui, Ngoc-Dan-Thanh Cao, Vinh-Phuc Luu, Thanh-Tin Nguyen, Bao-Trong Dang, Minh-Quan Thai, Dinh-Duc Nguyen, Thanh-Son Nguyen, Quoc-Tuc Dinh, Thanh-Son Dao
Hospital wastewater contains huge amounts of hazardous pollutants which are being discharged daily to environment with or without treatment. Antibiotics were among the important group of pharmaceuticals considered as a potential source of health risk for human and other living creatures. Although the investigations about the existence of antibiotics in hospital wastewater have gained concern for researchers in many countries, there is only one research conducted in Hanoi-Vietnam. Hence, in this study, investigations have been done to fulfill the requirement of real situation in Vietnam by accomplishing survey for 39 health care facilities in Ho Chi Minh City...
December 0: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27878087/collateral-damage-to-marine-and-terrestrial-ecosystems-from-yankee-whaling-in-the-19th-century
#18
Joshua Drew, Elora H López, Lucy Gill, Mallory McKeon, Nathan Miller, Madeline Steinberg, Christa Shen, Loren McClenachan
Yankee whalers of the 19th century had major impacts on populations of large whales, but these leviathans were not the only taxa targeted. Here, we describe the "collateral damage," the opportunistic or targeted taking of nongreat whale species by the American whaling industry. Using data from 5,064 records from 79 whaling logs occurring between 1840 and 1901, we show that Yankee whalers captured 5,255 animals across three large ocean basins from 32 different taxonomic categories, including a wide range of marine and terrestrial species...
November 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/27875532/willingness-to-know-the-cause-of-death-and-hypothetical-acceptability-of-the-minimally-invasive-autopsy-in-six-diverse-african-and-asian-settings-a-mixed-methods-socio-behavioural-study
#19
Maria Maixenchs, Rui Anselmo, Emily Zielinski-Gutiérrez, Frank O Odhiambo, Clarah Akello, Maureen Ondire, S Shujaat H Zaidi, Sajid Bashir Soofi, Zulfiqar A Bhutta, Kounandji Diarra, Mahamane Djitèye, Roukiatou Dembélé, Samba Sow, Pamela Cathérine Angoissa Minsoko, Selidji Todagbe Agnandji, Bertrand Lell, Mamudo R Ismail, Carla Carrilho, Jaume Ordi, Clara Menéndez, Quique Bassat, Khátia Munguambe
BACKGROUND: The minimally invasive autopsy (MIA) is being investigated as an alternative to complete diagnostic autopsies for cause of death (CoD) investigation. Before potential implementation of the MIA in settings where post-mortem procedures are unusual, a thorough assessment of its feasibility and acceptability is essential. METHODS AND FINDINGS: We conducted a socio-behavioural study at the community level to understand local attitudes and perceptions related to death and the hypothetical feasibility and acceptability of conducting MIAs in six distinct settings in Gabon, Kenya, Mali, Mozambique, and Pakistan...
November 2016: PLoS Medicine
https://www.readbyqxmd.com/read/27869700/preclinical-and-clinical-studies-on-antioxidative-antihypertensive-and-cardioprotective-effect-of-marine-proteins-and-peptides-a-review
#20
REVIEW
Ida-Johanne Jensen, Hanne K Mæhre
High seafood consumption has traditionally been linked to a reduced risk of cardiovascular diseases, mainly due to the lipid lowering effects of the long chained omega 3 fatty acids. However, fish and seafood are also excellent sources of good quality proteins and emerging documentation show that, upon digestion, these proteins are sources for bioactive peptides with documented favorable physiological effects such as antioxidative, antihypertensive and other cardioprotective effects. This documentation is mainly from in vitro studies, but also animal studies are arising...
November 18, 2016: Marine Drugs
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