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https://www.readbyqxmd.com/read/28433683/municipal-wastewater-sludge-as-a-sustainable-bioresource-in-the-united-states
#1
Timothy E Seiple, André M Coleman, Richard L Skaggs
Within the United States and Puerto Rico, publicly owned treatment works (POTWs) process 130.5 Gl/d (34.5 Bgal/d) of wastewater, producing sludge as a waste product. Emerging technologies offer novel waste-to-energy pathways through whole sludge conversion into biofuels. Assessing the feasibility, scalability and tradeoffs of various energy conversion pathways is difficult in the absence of highly spatially resolved estimates of sludge production. In this study, average wastewater solids concentrations and removal rates, and site specific daily average influent flow are used to estimate site specific annual sludge production on a dry weight basis for >15,000 POTWs...
April 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28432509/assessment-of-cadmium-content-of-potato-grown-in-weining-county-guizhou-province-china
#2
Yuping Zhang, Yu E Wu, Anming Yang, Jun Wang, Kankan Zhang, Deyu Hu
A total of 54 soil and 54 potato samples have been collected from Weining County to evaluate the accumulation of cadmium in potatoes. The concentrations of the total Cd and the available Cd in the soil samples have been detected. The total concentrations of Cd were from 0.41 to 10.0 mg/kg with an average value of 2.60 mg/kg in soil. The concentrations of available Cd in the soil were 0.07 to 3.47 mg/kg with an average value of 0.59 mg/kg. The concentration of the available Cd showed a good linear positive correlation with the total Cd content in the soil...
May 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28431302/quality-of-life-in-survivors-of-oropharyngeal-cancer-a%C3%A2-systematic-review-and-meta-analysis-of-1366-patients
#3
REVIEW
Sanne Høxbroe Michaelsen, Christian Grønhøj, Jacob Høxbroe Michaelsen, Jeppe Friborg, Christian von Buchwald
Human papillomavirus (HPV)-associated oropharyngeal cancer (OPC) is rapidly increasing in incidence and has a favourable prognosis compared with HPV-negative disease. Current combined therapies include significant risks of morbidity for the growing group of survivors. This systematic review and meta-analysis investigates how treatment affects quality of life (QoL) in survivors of oropharyngeal cancer. PubMed, EMBASE and the Cochrane Library were systematically searched for all studies reporting patient-assessed QoL at least 1 year after treatment for OPC...
April 18, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28430897/genetic-variants-associated-with-the-root-system-architecture-of-oilseed-rape-brassica-napus-l-under-contrasting-phosphate-supply
#4
Xiaohua Wang, Yanling Chen, Catherine L Thomas, Guangda Ding, Ping Xu, Dexu Shi, Fabian Grandke, Kemo Jin, Hongmei Cai, Fangsen Xu, Bin Yi, Martin R Broadley, Lei Shi
Breeding crops with ideal root system architecture for efficient absorption of phosphorus is an important strategy to reduce the use of phosphate fertilizers. To investigate genetic variants leading to changes in root system architecture, 405 oilseed rape cultivars were genotyped with a 60K Brassica Infinium SNP array in low and high P environments. A total of 285 single-nucleotide polymorphisms were associated with root system architecture traits at varying phosphorus levels. Nine single-nucleotide polymorphisms corroborate a previous linkage analysis of root system architecture quantitative trait loci in the BnaTNDH population...
April 19, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28429992/effect-of-replacing-maize-grain-and-soybean-meal-with-a-xylose-treated-wheat-grain-on-feed-intake-and-performance-of-dairy-cows
#5
Jens Benninghoff, Gregor Hamann, Herbert Steingaß, Franz-Josef Romberg, Karl Landfried, Karl-Heinz Südekum
This study evaluated wheat grain which was treated with xylose in aqueous Ca-Mg lignosulphonate solution at elevated temperatures (WeiPass®) in order to reduce ruminal degradation of starch and crude protein. The two tested isoenergetic and isonitrogenous diets contained on dry matter (DM) basis either 16% maize grain and 6.4% soybean meal (Diet CON) or 17.8% xylose-treated wheat and 4.6% soybean meal (Diet Wheat). Thirty-six German Holstein dairy cows were assigned to one of the two groups according to parity, body weight after calving, and milk yield during the previous lactation...
June 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/28429673/hydroxytyrosol-attenuates-lps-induced-acute-lung-injury-in-mice-by-regulating-autophagy-and-sirtuin-expression
#6
X Yang, T Jing, Y Li, Y He, B Wang, W Zhang, Y Xiao, W Wang, J Zhang, J Wei, R Lin
BACKGROUND: Recently, the effects of hydroxytyrosol on autophagy during acute lung injury (ALI) have drawn increasing attention. OBJECTIVE: We explored the underlying molecular mechanisms by which hydroxytyrosol exerts its anti-inflammatory effects in a murine model of ALI by up-regulating autophagy. METHODS: Male BALB/c mice, challenged with intranasal instillations of LPS, were treated with or without hydroxytyrosol (HT, 100 mg/kg, intragastrically) 1 h prior to LPS exposure...
April 21, 2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/28429609/chemical-evaluation-of-the-rhynchophorus-ferrugineus-larvae-fed-on-different-substrates-as-human-food-source
#7
Annarita Cito, Santi Longo, Giuseppe Mazza, Elena Dreassi, Valeria Francardi
We investigated the chemical composition of the weevil Rhynchophorus ferrugineus larvae, traditionally used as human food in Asia and known worldwide as one of the most significant pest for palm trees. Total fat content and fatty acid composition were analyzed using standard methodologies in (1) weevil larvae reared on apple fruit slices and wild specimens collected from attacked (2) Phoenix canariensis and (3) Syagrus romanzoffiana palm trees. Total fat content was extremely high in all the specimens (ranged between 57...
January 1, 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28429353/roles-of-the-nrf2-ho-1-pathway-in-the-anti-oxidative-stress-response-to-ischemia-reperfusion-brain-injury-in-rats
#8
L-J Jiang, S-M Zhang, C-W Li, J-Y Tang, F-Y Che, Y-C Lu
OBJECTIVE: The aim of this study was to investigate the roles of the Nrf2/HO-1 pathway in the responses to the oxidative stress created by ischemia-reperfusion brain injury in rats. MATERIALS AND METHODS: 54 healthy, adult, male SD rats were included in the study. Eighteen (18) rats were placed in the sham group. The ischemia-reperfusion model was created in the other 36 rats, among which 18 received injections of Nrf2 agonist before the surgery. The suture method was used to create artery occlusions in the right brain of the rats; and reperfusion was done after 90-minute ischemia (MCAO); while no suture was inserted in the sham group...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28429273/assessment-of-the-temporal-and-spatial-distribution-of-atmospheric-pcns-and-their-air-soil-exchange-using-passive-air-samplers-in-shanghai-east-china
#9
Qingqi Die, Zhiqiang Nie, Bo Yue, Xuemei Zhu, Xingbao Gao, Jianyuan Wang, Yufei Yang, Yanyan Fang, Qifei Huang
A total of 47 passive air samples and 25 soil samples were collected to study the temporal trend, distribution, and air-soil exchange of polychlorinated naphthalenes (PCNs) in Shanghai, China. Atmospheric PCNs ranged from 3.44 to 44.1 pg/m(3) (average of 21.9 pg/m(3)) in summer and 13.6 to 153 pg/m(3) (average of 40.0 pg/m(3)) in winter. In the soil samples, PCN concentrations were 54.7-1382 pg/g dry weight (average of 319 pg/g). Tri-CNs and tetra-CNs were two dominant homolog groups in air samples, while di-CNs were also found at comparable proportions to tri-CNs and tetra-CNs in soil samples...
April 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28429184/interactive-effects-of-salicylic-acid-and-nitric-oxide-in-alleviating-zinc-toxicity-of-safflower-carthamus-tinctorius-l
#10
Shahram Namdjoyan, Hossein Kermanian, Ali Abolhasani Soorki, Sedigheh Modarres Tabatabaei, Nazli Elyasi
The purpose of this study was to assess the possible protective role of exogenous salicylic acid (SA), sodium nitroprusside (SNP), a donor of nitric oxide, and their combination on 21-day-old safflower (Carthamus tinctorius L.) seedlings grown under zinc (Zn) stress. The results revealed that exposure to 500 µM ZnSO4.7H2O for 10 days markedly reduced the root and shoot dry weights in Zn-treated plants, while the application of SA, SNP and specially SA + SNP significantly increased the root and shoot dry weights in seedlings subjected to Zn stress...
April 20, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28429062/detection-of-freshwater-cyanotoxins-and-measurement-of-masked-microcystins-in-tilapia-from-southeast-asian-aquaculture-farms
#11
Brett Greer, Ronald Maul, Katrina Campbell, Christopher T Elliott
Recently, there has been a rise in freshwater harmful algal blooms (HABs) globally, as well as increasing aquaculture practices. HABs can produce cyanotoxins, many of which are hepatotoxins. An ultra-performance liquid chromatography tandem mass spectrometry method was developed and validated for nine cyanotoxins across three classes including six microcystins, nodularin, cylindrospermopsin and anatoxin-a. The method was used to analyse free cyanotoxin(s) in muscle (n = 34), liver (n = 17) and egg (n = 9) tissue samples of 34 fish sourced from aquaculture farms in Southeast Asia...
April 20, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28428822/in-muro-deacetylation-of-xylan-affects-lignin-properties-and-improves-saccharification-of-aspen-wood
#12
Prashant Mohan-Anupama Pawar, Marta Derba-Maceluch, Sun-Li Chong, Madhavi Latha Gandla, Shamrat Shafiul Bashar, Tobias Sparrman, Patrik Ahvenainen, Mattias Hedenström, Merve Özparpucu, Markus Rüggeberg, Ritva Serimaa, Martin Lawoko, Maija Tenkanen, Leif J Jönsson, Ewa J Mellerowicz
BACKGROUND: Lignocellulose from fast growing hardwood species is a preferred source of polysaccharides for advanced biofuels and "green" chemicals. However, the extensive acetylation of hardwood xylan hinders lignocellulose saccharification by obstructing enzymatic xylan hydrolysis and causing inhibitory acetic acid concentrations during microbial sugar fermentation. To optimize lignocellulose for cost-effective saccharification and biofuel production, an acetyl xylan esterase AnAXE1 from Aspergillus niger was introduced into aspen and targeted to cell walls...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28428797/silicon-regulates-antioxidant-activities-of-crop-plants-under-abiotic-induced-oxidative-stress-a-review
#13
REVIEW
Yoon-Ha Kim, Abdul L Khan, Muhammad Waqas, In-Jung Lee
Silicon (Si) is the second most abundant element in soil, where its availability to plants can exhilarate to 10% of total dry weight of the plant. Si accumulation/transport occurs in the upward direction, and has been identified in several crop plants. Si application has been known to ameliorate plant growth and development during normal and stressful conditions over past two-decades. During abiotic (salinity, drought, thermal, and heavy metal etc) stress, one of the immediate responses by plant is the generation of reactive oxygen species (ROS), such as singlet oxygen ((1)O2), superoxide ([Formula: see text]), hydrogen peroxide (H2O2), and hydroxyl radicals (OH), which cause severe damage to the cell structure, organelles, and functions...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28426718/effects-of-dietary-beef-pork-chicken-and-salmon-on-intestinal-carcinogenesis-in-a-j-min-mice
#14
Christina Steppeler, Marianne Sødring, Bjørg Egelandsdal, Bente Kirkhus, Marije Oostindjer, Ole Alvseike, Lars Erik Gangsei, Ellen-Margrethe Hovland, Fabrice Pierre, Jan Erik Paulsen
The International Agency for Research on Cancer has classified red meat as "probably carcinogenic to humans" (Group 2A). In mechanistic studies exploring the link between intake of red meat and CRC, heme iron, the pigment of red meat, is proposed to play a central role as a catalyzer of luminal lipid peroxidation and cytotoxicity. In the present work, the novel A/J Min/+ mouse was used to investigate the effects of dietary beef, pork, chicken, or salmon (40% muscle food (dry weight) and 60% powder diet) on Apc-driven intestinal carcinogenesis, from week 3-13 of age...
2017: PloS One
https://www.readbyqxmd.com/read/28425963/a-multi-platform-optical-sensor-for-in-vivo-and-in-vitro-algae-classification
#15
Chee-Loon Ng, Qing-Qing Chen, Jia-Jing Chua, Harold F Hemond
Differentiation among major algal groups is important for the ecological and biogeochemical characterization of water bodies, and for practical management of water resources. It helps to discern the taxonomic groups that are beneficial to aquatic life from the organisms causing harmful algal blooms. An LED-induced fluorescence (LEDIF) instrument capable of fluorescence, absorbance, and scattering measurements; is used for in vivo and in vitro identification and quantification of four algal groups found in freshwater and marine environments...
April 20, 2017: Sensors
https://www.readbyqxmd.com/read/28424737/gc-ms-based-metabolite-profiling-antioxidant-and-antimicrobial-properties-of-different-solvent-extracts-of-malaysian-plectranthus-amboinicus-leaves
#16
Mallappa Kumara Swamy, Greetha Arumugam, Ravinder Kaur, Ali Ghasemzadeh, Mazina Mohd Yusoff, Uma Rani Sinniah
This study evaluates the phytochemistry, antioxidant, and antimicrobial effects of Plectranthus amboinicus leaves extracted in different solvents. The methanol extract contained the highest total phenolic (94.37 ± 1.24 mg GAE/g) and flavonoid contents (26.90 ± 1.35 mg RE/g) and exhibited the highest DPPH scavenging activity (90.13 ± 3.32%) followed by the acetone extract (80.23 ± 3.26%) at 500 μg/mL concentration. Similarly, the highest ferric ion reduction potential (849.63 ± 30.95 μM of Fe (II)/g dry weight) was exhibited by the methanol extract followed by the acetone extract (695...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28424720/arbuscular-mycorrhizal-fungus-rhizophagus-irregularis-increased-potassium-content-and-expression-of-genes-encoding-potassium-channels-in-lycium-barbarum
#17
Haoqiang Zhang, Suzhen Wei, Wentao Hu, Longmin Xiao, Ming Tang
Potassium in plants accounts for up to 10% dry weight, and participates in different physiological processes. Under drought stress, plant requires more potassium but potassium availability in soil solutes is lowered by decreased soil water content. Forming symbiosis with arbuscular mycorrhizal (AM) fungi not only enlarges exploration range of plant for mineral nutrients and water in soil, but also improves plant drought tolerance. However, the regulation of AM fungi on plant root potassium uptake and translocation from root to shoot was less reported...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424718/comparative-performance-of-multivariable-agro-physiological-parameters-for-detecting-salt-tolerance-of-wheat-cultivars-under-simulated-saline-field-growing-conditions
#18
Salah E El-Hendawy, Wael M Hassan, Nasser A Al-Suhaibani, Yahya Refay, Kamel A Abdella
Field-based trials are crucial for successfully achieving the goals of plant breeding programs aiming to screen and improve the salt tolerance of crop genotypes. In this study, simulated saline field growing conditions were designed using the subsurface water retention technique (SWRT) and three saline irrigation levels (control, 60, and 120 mM NaCl) to accurately appraise the suitability of a set of agro-physiological parameters including shoot biomass, grain yield, leaf water relations, gas exchange, chlorophyll fluorescence, and ion accumulation as screening criteria to establish the salt tolerance of the salt-tolerant (Sakha 93) and salt-sensitive (Sakha 61) wheat cultivars...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28423881/effects-of-calcium-propionate-on-the-fermentation-quality-and-aerobic-stability-of-alfalfa-silage
#19
Zhi Hao Dong, Xian Jun Yuan, Ai You Wen, Seare T Desta, Tao Shao
Objective: To assess the potency of calcium propionate used as silage additive, an experiment was carried out to evaluate the effect of calcium propionate on the nitrogen transformation, fermentation quality and aerobic stability of alfalfa silages. Methods: Alfalfa was ensiled with four levels of calcium propionate (CAP; 5, 10, 15 and 20 g kg-1 of fresh weigh) in laboratory silos for 30 days. After opening, the silages were analyzed for the chemical and microbiological characteristics, and subjected to an aerobic stability test...
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28423873/replacing-groundnut-cake-with-gluten-meals-of-rice-and-maize-in-diets-for-growing-sahiwal-cattle
#20
Tariq A Malik, S S Thakur, M S Mahesh, R K Yogi
Objective: This experiment aimed to investigate the effect of isonitrogenous replacement of Groundnut cake (GNC) by Rice gluten meal (RGM) and Maize gluten meal (MGM) at 75% level on nutrient intake, apparent digestibility, growth performance and related blood constituents in growing Sahiwal cattle. Methods: Eighteen Sahiwal calves were divided into three groups, based on average body weight (BW: 87.24 kg) and age (6-12 m), and treatments were assigned to the different groups randomly...
April 19, 2017: Asian-Australasian Journal of Animal Sciences
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