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https://www.readbyqxmd.com/read/29793207/infectivity-reduction-efficacy-of-uv-irradiation-and-peracetic-acid-uv-combined-treatment-on-ms2-bacteriophage-and-murine-norovirus-in-secondary-wastewater-effluent
#1
ShihChi Weng, Nathan Dunkin, Kellogg J Schwab, James McQuarrie, Kati Bell, Joseph G Jacangelo
Peracetic acid (PAA) is a strong oxidant/bactericide that has been applied in various industries (e.g., food processing, pharmaceuticals, medical device sterilization, etc.) as a disinfectant. There is increasing interest in using PAA for wastewater disinfection because it does not form halogenated byproducts, and no post-treatment quenching is required. Previous studies have demonstrated good efficiency in controlling bacteria in wastewater, but limited information is available for viruses, especially those hosted by mammals (e...
May 21, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29793198/assessment-of-cu-sub-lethal-toxicity-lc-50-in-the-cold-water-gorgonian-dentomuricea-meteor-under-a-deep-sea-mining-activity-scenario
#2
Inês Martins, António Godinho, Joana Goulart, Marina Carreiro-Silva
Previous aquaria-based experiments have shown dissolution and leaching of metals, especially copper (Cu), from the simulated sediment plumes generated during mining activities resulting in a pronounced increase of Cu contamination in the surrounding seawater. Metals are bioavailable to corals with food, through ingestion (particulate phase) and through tissue-facilitated transport (passive diffusion). With corals being particularly vulnerable to metal contamination, resuspension of metal-bearing sediments during mining activities represents an important ecological threat...
May 21, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29793160/water-footprint-characteristic-of-less-developed-water-rich-regions-case-of-yunnan-china
#3
Yiying Qian, Huijuan Dong, Yong Geng, Shaozhuo Zhong, Xu Tian, Yanhong Yu, Yihui Chen, Dana Avery Moss
Rapid industrialization and urbanization pose pressure on water resources in China. Virtual water trade proves to be an increasingly useful tool in water stress alleviation for water-scarce regions, while bringing opportunities and challenges for less developed water-rich regions. In this study, Yunnan, a typical province in southwest China, was selected as the case study area to explore its potential in socio-economic development in the context of water sustainability. Both input-output analysis and structural decomposition analysis on Yunnan's water footprint for the period of 2002-2012 were performed at not only an aggregated level but also a sectoral level...
March 30, 2018: Water Research
https://www.readbyqxmd.com/read/29793106/microplastics-in-mussels-sampled-from-coastal-waters-and-supermarkets-in-the-united-kingdom
#4
Jiana Li, Christopher Green, Alan Reynolds, Huahong Shi, Jeanette M Rotchell
Global contamination of the marine environment by plastic has led to the discovery of microplastics in a range of marine species, including those for human consumption. In this study, the presence of microplastics and other anthropogenic debris in seawater and mussels (Mytilus edulis) from coastal waters of the U.K., as well as supermarket sources, was investigated. These were detected in all samples from all sites with spatial differences observed. Seawater samples taken from 6 locations (in triplicates) displayed 3...
May 21, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29793053/aggressive-fluid-and-sodium-restriction-in-decompensated-heart-failure-with-preserved-ejection-fraction-results-from-a-randomized-clinical-trial
#5
Karina Sanches Machado d'Almeida, Eneida Rejane Rabelo-Silva, Gabriela Corrêa Souza, Melina Maria Trojahn, Sofia Louise Santin Barilli, Graziella Aliti, Luís Eduardo Rohde, Andreia Biolo, Luís Beck-da-Silva
OBJECTIVES: Sodium and fluid restriction is commonly prescribed for heart failure patients. However, its role in the treatment of heart failure with preserved ejection fraction (HFpEF) remains unclear. The aim of this study was to compare the effect of a diet with sodium and fluid restriction with an unrestricted diet in patients admitted for decompensated HFpEF. METHODS: Patients were randomized to a diet with sodium (0.8 g/d) and fluid (800 mL/d) restriction (intervention group [IG]) or an unrestricted diet (control group [CG]) and followed for 7 d or hospital discharge...
March 21, 2018: Nutrition
https://www.readbyqxmd.com/read/29792982/portuguese-children-dietary-exposure-to-multiple-mycotoxins-an-overview-of-risk-assessment-under-mycomix-project
#6
Ricardo Assunção, Carla Martins, Elsa Vasco, Alessandra Jager, Carlos Oliveira, Sara Cunha, José Fernandes, Baltazar Nunes, Susana Loureiro, Paula Alvito
Mycotoxins are secondary fungi metabolites that induce acute and chronic toxic effects in humans and animals. Simultaneous contamination of cereal-based products by multiple mycotoxins has been increasingly reported, including in food products usually consumed by children. Although some previous authors assessed the health risk of children exposed to multiple mycotoxins, scarce data are available on the risk associated with the ingestion of multiple mycotoxins through different food products. MYCOMIX, a national funded project, intended to contribute to fill this gap...
May 21, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29792963/extraction-characterization-and-biological-activity-of-sulfated-polysaccharides-from-seaweed-dictyopteris-divaricata
#7
Yinxin Cui, Xin Liu, Shufang Li, Limin Hao, Juan Du, DaHai Gao, Qiaozhen Kang, Jike Lu
Dictyopteris divaricata is a kind of important brown algae with many biological activities. It has been receiving more and more attention, yet there are rarely studies done on its polysaccharides. In this study, the optimum extraction and biological activity of seaweed polysaccharides from Dictyopteris divaricata (DDSP) were investigated. Response surface methodology (RSM), based on a three-level, three-variable Box-Behnken design (BBD), was employed to obtain the best possible combinations for maximum polysaccharides yield...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792961/composite-films-of-regenerate-cellulose-with-chitosan-and-polyvinyl-alcohol-evaluation-of-water-adsorption-mechanical-and-optical-properties
#8
Patricia Cazón, Manuel Vázquez, Gonzalo Velazquez
The aim of this study was to develop composite films from cellulose, chitosan and polyvinyl alcohol to obtain environmentally friendly materials. Toughness, burst strength, distance to burst and water adsorption properties were measured and analysed as a function of cellulose (3-5%), chitosan (0-1%) and polyvinyl alcohol (0-4%) contents. Polynomial models were obtained. Light-barrier properties, transparency, morphology, structural and thermal analyses were assessed. Results showed that chitosan and polyvinyl alcohol enhanced the mechanical properties of cellulose-based films...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792957/high-activity-production-of-xylanase-by-pichia-stipitis-purification-characterization-kinetic-evaluation-and-xylooligosaccharides-production
#9
Changhe Ding, Mengxing Li, Yuqi Hu
As an industrially important biological macromolecule, xylanase hydrolyzes xylan to produce xylooligosaccarides (XOS). XOS, with a degree of polymerization (DP) 2 to 4, are important prebiotics used as food ingredients. In this study, xylanase (5536 U/g substrate) was produced by Pichia stipitis using corncob and wheat bran mixture under solid state fermentation. Crude xylanase were purified and biochemically characterized. XOS hydrolyzed by crude and purified xylanases were quantified. Molecular weight of the purified enzyme was around 31...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792956/development-of-photo-modified-starch-kefiran-tio-2-bio-nanocomposite-as-an-environmentally-friendly-food-packaging-material
#10
Vahid Goudarzi, Iman Shahabi-Ghahfarrokhi
This paper reports on an experiment in which starch/kefiran/TiO2 (SKT)-based bio-nanocomposite films were developed and modified by photo-chemical reaction. In so doing, film-forming solutions were exposed to ultraviolet A (UV-A) for different times (1, 6, and 12 h). The obtained results indicated that increasing UV-A exposure time brought about an increase (≈14.9%) in the tensile strength of bio-nanocomposites. However, elongation at break and Young's modulus of irradiated film specimen decreased (≈32%, ≈12%, respectively) by increasing UV-A exposure time, and the moisture-sensitive parameters of specimen decreased using UV-A irradiation...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792943/the-development-of-a-screening-protocol-for-salmonella-spp-and-enteropathogenic-yersinia-spp-in-samples-from-wild-boar-sus-scrofa-also-generating-mlva-data-for-y-enterocolitica-and-y-pseudotuberculosis
#11
Axel Sannö, Magdalena Jacobson, Sandra Sterner, Susanne Thisted-Lambertz, Anna Aspán
Salmonellosis and yersiniosis are notifiable human diseases that are commonly associated with contaminated food. Domestic pigs as well as wild boars and other wild-life have been identified as reservoirs of these bacteria. Methods for cultivation and molecular epidemiological investigations of Salmonella spp. are well established, however, cultivation of enteropathogenic Yersinia spp. is time- consuming and the commonly used method for molecular epidemiological investigations, pulsed-field gel electrophoresis, lack in discriminatory power...
May 21, 2018: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/29792923/high-throughput-sequencing-identifies-chilling-responsive-genes-in-sweetpotato-ipomoea-batatas-lam-during-storage
#12
Zeyi Xie, Zhilin Zhou, Hongmin Li, Jingjing Yu, Jiaojiao Jiang, Zhonghou Tang, Daifu Ma, Baohong Zhang, Yonghua Han, Zongyun Li
Sweetpotato (Ipomoea batatas L.) is a globally important economic food crop. It belongs to Convolvulaceae family and origins in the tropics; however, sweetpotato is sensitive to cold stress during storage. In this study, we performed transcriptome sequencing to investigate the sweetpotato response to chilling stress during storage. A total of 110,110 unigenes were generated via high-throughput sequencing. Differentially expressed genes (DEGs) analysis showed that 18,681 genes were up-regulated and 21,983 genes were down-regulated in low temperature condition...
May 21, 2018: Genomics
https://www.readbyqxmd.com/read/29792906/four-novel-antibacterial-sesquiterpene-%C3%AE-amino-acid-quaternary-ammonium-hybrids-from-the-mycelium-of-mushroom-stereum-hirsutum
#13
Yuan-Chang Duan, Jun Feng, Na Bai, Guo-Hong Li, Ke-Qin Zhang, Pei-Ji Zhao
The mushroom Stereum hirsutum is parasitized by Tremella aurantia to form a heterogeneous basidiocarp Jin'er, which has been used as food and folk medicine in Chinese society. In present work, the S. hirsutum was fermented in YMG broth, and four novel mixed terpenes, stereumamides A-D (1-4), which are sesquiterpenes combined with α-amino acids to form quaternary ammonium hybrids, were isolated from the Stereum hirsutum FP-91666 and their structures were elucidated by spectroscopic data analysis. Stereumamides A and D showed antibacterial activity against Escherichia coli, Staphylococcus aureus, and Salmonella typhimurium, with the minimum inhibitory concentration (MIC) values of 12...
May 21, 2018: Fitoterapia
https://www.readbyqxmd.com/read/29792747/interpretation-time-using-a-concurrent-read-computer-aided-detection-system-for-automated-breast-ultrasound-in-breast-cancer-screening-of-women-with-dense-breast-tissue
#14
Yulei Jiang, Marc F Inciardi, Alexandra V Edwards, John Papaioannou
OBJECTIVE: The purpose of this study was to compare diagnostic accuracy and interpretation time of screening automated breast ultrasound (ABUS) for women with dense breast tissue without and with use of a recently U.S. Food and Drug Administration-approved computer-aided detection (CAD) system for concurrent read. MATERIALS AND METHODS: In a retrospective observer performance study, 18 radiologists interpreted a cancer-enriched set (i.e., cancer prevalence higher than in the original screening cohort) of 185 screening ABUS studies (52 with and 133 without breast cancer)...
May 24, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29792671/the-chemoattractant-glorin-is-inactivated-by-ester-cleavage-during-early-multicellular-development-of-polysphondylium-pallidum
#15
Daniel Heinrich, Robert Barnett, Luke Tweedy, Robert Insall, Pierre Stallforth, Thomas Winckler
Among the amoebozoan species capable of forming fruiting bodies, the dictyostelid social amoebae stand out since they form true multicellular organisms by means of single cell aggregation. Upon food depletion, cells migrate across gradients of extracellular signals initiated by cells in aggregation centers. The model species that is widely used to study multicellular development of social amoebae, Dictyostelium discoideum, uses cyclic adenosine monophosphate (cAMP) as a chemoattractant to coordinate aggregation...
May 24, 2018: ACS Chemical Biology
https://www.readbyqxmd.com/read/29792597/increasing-plant-diversity-with-border-crops-reduces-insecticide-use-and-increases-crop-yield-in-urban-agriculture
#16
Nian-Feng Wan, You-Ming Cai, Yan-Jun Shen, Xiang-Yun Ji, Xiang-Wen Wu, Xiang-Rong Zheng, Wei Cheng, Jun Li, Yao-Pei Jiang, Xin Chen, Jacob Weiner, Jie-Xian Jiang, Ming Nie, Rui-Ting Ju, Tao Yuan, Jian-Jun Tang, Wei-Dong Tian, Hao Zhang, Bo Li
Urban agriculture is making an increasing contribution to food security in large cities around the world. The potential contribution of biodiversity to ecological intensification in urban agricultural systems has not been investigated. We present monitoring data collected from rice fields in 34 community farms in mega-urban Shanghai, China, from 2001 to 2015, and show that the presence of a border crop of soybeans and neighboring crops (maize, eggplant and Chinese cabbage), both without weed control, increased invertebrate predator abundance, decreased the abundance of pests and dependence on insecticides, and increased grain yield and economic profits...
May 24, 2018: ELife
https://www.readbyqxmd.com/read/29792544/synergistic-phytochemicals-fail-to-protect-against-ovariectomy-induced-bone-loss-in-rats
#17
Suresh Ambati, Colette N Miller, Erica F Bass, Natalie M Hohos, Diane L Hartzell, Emily W Kelso, Emily R Trunnell, Jeong-Yeh Yang, Mary Anne Della-Fera, Clifton A Baile, Srujana Rayalam
Menopause induces a loss of bone as a result of estrogen deficiency. Despite pharmaceutical options for the treatment of osteopenia and osteoporosis, many aging women use dietary supplements with estrogenic activity to prevent bone loss and other menopausal-related symptoms. Such supplements are yet to be tested for efficacy against a Food and Drug Administration (FDA) approved medication for menopausal bone loss such as zoledronic acid (ZA). The postmenopausal rat model was used to investigate the efficacy of various synergistic phytochemical blends mixed into the diet for 16 weeks...
May 24, 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29792487/ethnic-racial-typicality-and-its-relation-to-ethnic-identity-and-psychological-functioning
#18
Lauren L Mitchell, Ummul-Kiram Kathawalla, Alex A Ajayi, Jillian Fish, Sarah C Nelson, Lovey H M Peissig, Moin Syed
OBJECTIVES: Ethnic identity development is considered a central task of adolescence and emerging adulthood for ethnic minority individuals. Although the process of developing a coherent ethnic identity has received attention from researchers, there has been little work done to elucidate the content of ethnic identity. This study uses an inductive mixed-methods approach to address 1 aspect of ethnic identity content: typicality, or the degree of perceived similarity individuals feel to their ethnic-racial group...
May 24, 2018: Cultural Diversity & Ethnic Minority Psychology
https://www.readbyqxmd.com/read/29792471/sex-differences-in-the-anorexigenic-effects-of-dexfenfluramine-and-amphetamine-in-baboons
#19
Richard W Foltin, Suzette M Evans
The anorexigenic effects of intramuscular d-amphetamine HCl (0.06-0.50 mg/kg) and dexfenfluramine HCl (0.25-2.0 mg/kg) were determined in experimentally naïve baboons. A group of 8 adult male baboons was tested prior to a group of 7 adult female baboons. A 120-min session occurred at 9:00 a.m. during which baboons could respond for food pellets. Drug was given 30 min prior to the 9:00 a.m. morning session. Beginning at 11:00 a.m., baboons had a 6-hr multiple-meal session during which they could have up to 4 food pellet meals...
May 24, 2018: Experimental and Clinical Psychopharmacology
https://www.readbyqxmd.com/read/29792366/nutritional-characterisation-of-zambian-moringa-oleifera-acceptability-and-safety-of-short-term-daily-supplementation-in-a-group-of-malnourished-girls
#20
Michela Barichella, Gianni Pezzoli, Samanta A Faierman, Benedetta Raspini, Martina Rimoldi, Erica Cassani, Simona Bertoli, Alberto Battezzati, Alessandro Leone, Laura Iorio, Valentina Ferri, Giovanna Pinelli, Chiara Pusani, Carlotta Bolliri, Roberto Cilia, Serena Caronni, Patrizia De Marco, Emanuele Cereda
In Zambia, chronic malnutrition still is one of the most common problem among children. To fight against malnutrition, the easiest short-term solution could be to combine specific types of food with affordable local plants. A large variety of natural food resources grow in Zambia, such as Moringa oleifera (MO), whose leaves are known for their health benefits, but are not consumed much by local populations. We analysed Zambian MO powder obtained from dried leaves and found that it contains large amounts of protein, minerals and vitamins, such as iron, calcium and carotenoids...
May 24, 2018: International Journal of Food Sciences and Nutrition
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