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https://www.readbyqxmd.com/read/29161678/preliminary-evaluation-of-pathogenic-bacteria-loading-on-organic-municipal-solid-waste-compost-and-vermicompost
#1
Nuhaa Soobhany
The use of composts or vermicomposts derived from organic fraction of Municipal Solid Waste (OFMSW) brought about certain disagreement in terms of high level of bacterial pathogens, thereby surpassing the legal restrictions. This preliminary study was undertaken to compare the evolution of pathogenic bacteria on OFMSW compost against vermicompost (generated by Eudrilus eugeniae) with promises of achieving sanitation goals. Analysis to quality data showed that OFMSW vermicomposting caused a moderately higher reduction in total coliforms in contrast to composting...
November 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29161325/the-mechanisms-of-humic-substances-self-assembly-with-biological-molecules-the-case-study-of-the-prion-protein
#2
Gabriele Giachin, Ridvan Nepravishta, Walter Mandaliti, Sonia Melino, Alja Margon, Denis Scaini, Pierluigi Mazzei, Alessandro Piccolo, Giuseppe Legname, Maurizio Paci, Liviana Leita
Humic substances (HS) are the largest constituent of soil organic matter and are considered as a key component of the terrestrial ecosystem. HS may facilitate the transport of organic and inorganic molecules, as well as the sorption interactions with environmentally relevant proteins such as prions. Prions enter the environment through shedding from live hosts, facilitating a sustained incidence of animal prion diseases such as Chronic Wasting Disease and scrapie in cervid and ovine populations, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/29160854/biomass-derived-oxygen-and-nitrogen-co-doped-porous-carbon-with-hierarchical-architecture-as-sulfur-hosts-for-high-performance-lithium-sulfur-batteries
#3
Yan Zhao, Li Wang, Lanyan Huang, Maxim Yu Maximov, Mingliang Jin, Yongguang Zhang, Xin Wang, Guofu Zhou
In this work, a facile strategy to synthesize oxygen and nitrogen co-doped porous carbon (ONPC) is reported by one-step pyrolysis of waste coffee grounds. As-prepared ONPC possesses highly rich micro/mesopores as well as abundant oxygen and nitrogen co-doping, which is applied to sulfur hosts as lithium/sulfur batteries' appropriate cathodes. In battery testing, the sulfur/oxygen and nitrogen co-doped porous carbon (S/ONPC) composite materials reveal a high initial capacity of 1150 mAh·g(-1) as well as a reversible capacity of 613 mAh·g(-1) after the 100th cycle at 0...
November 21, 2017: Nanomaterials
https://www.readbyqxmd.com/read/29160790/communication-or-toxicity-what-is-the-effect-of-cycloheximide-on-leaf-cutting-ant-workers
#4
Kátia Kaelly Andrade Sousa, Roberto da Silva Camargo, Luiz Carlos Forti
Leaf-cutting ants are insects that use plant material to grow fungus from which they feed. These fungus-growing ants perform various behavioral activities to establish an environment conducive to the fungus. Among these behaviors are activities that can serve to detect materials harmful to the colony, such as licking, scraping, chopping, etc. However, there are substances that may not be detected as harmful to the fungus on first contact. Cycloheximide (CHX) is one such substance, described as a fungicide that inhibits the synthesis of proteins in eukaryotes, although its mechanism of action remains unclear...
November 21, 2017: Insects
https://www.readbyqxmd.com/read/29160745/the-unveiling-of-the-warburg-effect-and-the-inscribed-innovative-approach-to-a-radical-non-toxic-anticancer-therapy
#5
Olivia Crociani, Ilaria Marzi, Maria Grazia Cipolleschi, Antonella Mannini, Massimo Contini, Massimo Olivotto
The purpose of this research has been deciphering the Warburg paradox, the biochemical enigma unsolved since 1923. This paradox consists of the aerobic pyruvate conversion to lactate brought about by anaplastic cancer, through the metabolic pathway known as aerobic glycolysis. This pathway implies a heavy energetic waste. We solved the enigma by demonstrating that its specific character, i.e. the forced aerobic lactate exportation, represents a crucial metabolic device to counteract the cytotoxic effect produced by an excess of pyruvate at the connection of glycolysis with the Krebs cycle...
November 21, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29160477/efficiency-of-cleaning-and-disinfection-of-surfaces-correlation-between-assessment-methods
#6
Oleci Pereira Frota, Adriano Menis Ferreira, Odanir Garcia Guerra, Marcelo Alessandro Rigotti, Denise de Andrade, Najla Moreira Amaral Borges, Margarete Teresa Gottardo de Almeida
OBJECTIVE: to assess the correlation among the ATP-bioluminescence assay, visual inspection and microbiological culture in monitoring the efficiency of cleaning and disinfection (C&D) of high-touch clinical surfaces (HTCS) in a walk-in emergency care unit. METHOD: a prospective and comparative study was carried out from March to June 2015, in which five HTCS were sampled before and after C&D by means of the three methods. The HTCS were considered dirty when dust, waste, humidity and stains were detected in visual inspection; when ≥2...
November 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/29160452/technical-issues-and-conservation-conditions-of-medicines-in-the-primary-health-care-of-the-brazilian-unified-health-system
#7
Ediná Alves Costa, Patrícia Sodré Araújo, Marcelo Tavares Pereira, Ana Cristina Souto, Gisélia Santana Souza, Augusto Afonso Guerra, Francisco de Assis Acurcio, Ione Aquemi Guibu, Juliana Alvares, Karen Sarmento Costa, Margô Gomes de Oliveira Karnikowski, Orlando Mario Soeiro, Silvana Nair Leite
OBJECTIVE: To characterize the technical issues and conditions of medicines conservation in Primary Health Care of Brazilian regions, responsible for pharmacy/dispensing unit profile; environmental, storage, and dose fractioning conditions; inventory control and waste management; fire and electrical failure safety items; transportation problems; advertising regulation; and pharmacovigilance. METHODS: This article is part of the Pesquisa Nacional sobre Acesso, Utilização e Promoção do Uso Racional de Medicamentos - Serviços (National Survey on Access, Use and Promotion of Rational Use of Medicines - Services)-, a cross-sectional and exploratory study, of evaluative nature, consisting of an information survey within a representative sample of municipalities, stratified by Brazilian regions, which constitute the study domains, and a sample of Primary Health Care services...
November 13, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/29159555/use-of-a-hands-free-instantaneous-closed-loop-communication-device-improves-perception-of-communication-and-workflow-integration-in-an-academic-teaching-hospital-a-pilot-study
#8
Daniel Z Fang, Teja Patil, Ilana Belitskaya-Levy, Marianne Yeung, Keith Posley, Nazima Allaudeen
Efficient and effective communication between providers is critical to quality patient care within a hospital system. Hands free communication devices (HFCD) allow instantaneous, closed-loop communication between physicians and other members of a multidisciplinary team, providing a communication advantage over traditional pager systems. HFCD have been shown to decrease emergency room interruptions, improve nursing communication, improve speed of information flow, and eliminate health care waste. We evaluated the integration of an HFCD with an existing alphanumeric paging system on an acute inpatient medicine service...
November 17, 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/29159454/phosphorus-transformations-in-plant-based-and-bio-waste-materials-induced-by-pyrolysis
#9
James Stephen Robinson, Karen Baumann, Yongfeng Hu, Philipp Hagemann, Lutz Kebelmann, Peter Leinweber
Strategies are needed to increase the sustainability of phosphorus (P) fertiliser management in agriculture. This paper reports on the potential of pyrolysis treatment to recycle P from renewable materials previously regarded as wastes. The study used K-edge X-ray absorption near-edge structure (XANES) spectroscopy to examine chemical forms of P in the waste feedstock materials and corresponding biochars (pyrolysis at 480-500 °C) of four ligno-cellulosic, plant-based residues and five relatively P-rich livestock and water-treatment by-products, to acquire information on changes in potential P fertiliser value...
November 20, 2017: Ambio
https://www.readbyqxmd.com/read/29159434/mineralogical-and-geochemical-characterization-of-waste-rocks-from-a-gold-mine-in-northeastern-thailand-application-for-environmental-impact-protection
#10
Thitiphan Assawincharoenkij, Christoph Hauzenberger, Karl Ettinger, Chakkaphan Sutthirat
Waste rocks from gold mining in northeastern Thailand are classified as sandstone, siltstone, gossan, skarn, skarn-sulfide, massive sulfide, diorite, and limestone/marble. Among these rocks, skarn-sulfide and massive sulfide rocks have the potential to generate acid mine drainage (AMD) because they contain significant amounts of sulfide minerals, i.e., pyrrhotite, pyrite, arsenopyrite, and chalcopyrite. Moreover, both sulfide rocks present high contents of As and Cu, which are caused by the occurrence of arsenopyrite and chalcopyrite, respectively...
November 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29158514/large-magneto-seebeck-effect-in-magnetic-tunnel-junctions-with-half-metallic-heusler-electrodes
#11
Alexander Boehnke, Ulrike Martens, Christian Sterwerf, Alessia Niesen, Torsten Huebner, Marvin von der Ehe, Markus Meinert, Timo Kuschel, Andy Thomas, Christian Heiliger, Markus Münzenberg, Günter Reiss
Spin caloritronics studies the interplay between charge-, heat- and spin-currents, which are initiated by temperature gradients in magnetic nanostructures. A plethora of new phenomena has been discovered that promises, e.g., to make wasted heat in electronic devices useable or to provide new read-out mechanisms for information. However, only few materials have been studied so far with Seebeck voltages of only some microvolt, which hampers applications. Here, we demonstrate that half-metallic Heusler compounds are hot candidates for enhancing spin-dependent thermoelectric effects...
November 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/29158495/the-prevalence-of-muscle-wasting-sarcopenia-in-peritoneal-dialysis-patients-varies-with-ethnicity-due-to-differences-in-muscle-mass-measured-by-bioimpedance
#12
Suree Yoowannakul, Kamonwan Tangvoraphonkchai, Andrew Davenport
BACKGROUND/OBJECTIVES: Sarcopenia is associated with increased mortality. European and North American recommended screening for low muscle mass uses gender specific cut points, with no adjustment for ethnicity. We wished to determine whether the prevalence of sarcopenia was altered by ethnicity in peritoneal dialysis (PD) patients. SUBJECTS/METHODS: We measured appendicular lean mass indexed to height (ALMI) in PD patients by segmental bioimpedance and determined sarcopenia using different cut off points for reduced muscle mass...
November 21, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29158003/transportation-fuel-from-plastic-two-cases-of-study
#13
Gian Claudio Faussone
Synthesis of liquid fuels from waste is a promising pathway for reducing the carbon footprint of transportation industry and optimizing waste management towards zero landfilling. The study of commercial plants that conduct pyrolysis of plastics from post-consumer recycled materials and directly mine from old landfills without any pre-treatment has revealed two cases that show the feasibility of manufacturing transportation fuels via these methods. Pyrolysis oil, consisting of almost 26% hydrocarbons within the gasoline range and almost 70% within the diesel range, is upgraded to transportation fuel in the existing refinery...
November 17, 2017: Waste Management
https://www.readbyqxmd.com/read/29158002/sofc-single-cells-fed-by-biogas-experimental-tests-with-trace-contaminants
#14
Davide Papurello, Andrea Lanzini
Biogas from biological treatments and from the waste degradation in landfills generally contains a wide range of trace impurities (e.g., sulphur compounds, siloxanes, halogens, tar compounds, etc.). This paper describes an experimental analysis performed with SOFC single cells fed by a synthetic gas polluted by H2S, HCl, D4 and a mixture of H2S + C2Cl4. The aim is to detect the threshold tolerance limit on different cell performance parameters. Results show how: hydrogen sulphide has a strong impact on the polarization losses due to the nickel sulphide formation on the electrode that causes a mass transfer resistance...
November 17, 2017: Waste Management
https://www.readbyqxmd.com/read/29157303/promoting-adherence-to-medicines-possible-lessons-for-canada
#15
Nigel S B Rawson
Non-adherence to medication regimens is a major issue that can negatively impact patient health and wastes health care system resources. This commentary considers whether approaches to strategies undertaken in Israel to promote adherence could be viable in Canada. The structure of the Canadian health care system and budgetary constraints make new initiatives similar to those in Israel seem unlikely in Canada without some compelling stimulus.
November 20, 2017: Israel Journal of Health Policy Research
https://www.readbyqxmd.com/read/29157279/coinfection-with-haemophilus-parasuis-serovar-4-increases-the-virulence-of-porcine-circovirus-type-2-in-piglets
#16
Shuqing Liu, Wentao Li, Yang Wang, Changqin Gu, Xiaoli Liu, Catherine Charreyre, Shenxian Fan, Qigai He
BACKGROUND: Postweaning multisystemic wasting syndrome (PMWS) is an emerging disease in swine. Pigs with PMWS are often infected with a variety of other pathogens, including bacteria, viruses and mycoplasm, in addition to porcine circovirus type 2 (PCV2). PCV2 and Haemophilus parasuis serovar 4 (HPS4) coinfection remain epidemic in China. METHODS: Here we report construction of a three-week-old naturally farrowed, colostrum-deprived (NFCD) piglet's infection model and demonstrate that PCV2-infected piglets with the HPS4 coinfection increased the virulence of PCV2 and these pathogens interact acquired PMWS...
November 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/29157155/work-environment-and-occupational-risk-assessment-for-small-animal-portuguese-veterinary-activities
#17
Angela C Macedo, Vânia T Mota, João M Tavares, Osvaldo L Machado, Francisco X Malcata, Marinela P Cristo, Olga N Mayan
The professional work of small animal veterinary staff encompasses a wide diversity of demanding tasks. This has prompted a number of studies covering physical, chemical, biological, ergonomic or psychological hazards, as well as their health effects upon veterinary workers. However, such results were obtained from self-reported surveys (via paper or online). This study reports the identification of potential hazards and provides a risk assessment of 15 veterinary clinics based on data from walk-through surveys, interviews with workers, and quantification of indoor air quality parameters including concentration of volatile organic compounds (total, isoflurane and glutaraldehyde)...
November 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/29156513/production-and-characterization-of-keratinolytic-proteases-by-a-chicken-feather-degrading-thermophilic-strain-thermoactinomyces-sp-yt06
#18
Lin Wang, Yuting Qian, Yun Cao, Ying Huang, Zhizhou Chang, Hongying Huang
Thermoactinomyces sp. strain YT06 was isolated from poultry compost and observed to degrade integral chicken feathers at 60°C completely, resulting in the formation of 3.24 mg/mL of free amino acid from 50 mL of culture containing 10 g/L chicken feathers. Strain YT06 could grow and secret keratinase using feather as the only carbon and nitrogen sources without other supplement, but complementation of 10 g/L sucrose and 4 g/L NaNO₃ increased the production of the keratinolytic enzyme. The maximum protease activities obtained were 110 U/mL and keratinase were 42 U/mL...
November 21, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29156440/pharmaceutical-and-personal-care-products-induced-stress-symptoms-and-detoxification-mechanisms-in-cucumber-plants
#19
Chengliang Sun, Stacia Dudley, John Trumble, Jay Gan
Contamination of agricultural soils by pharmaceutical and personal care products (PPCPs) resulting from the application of treated wastewater, biosolids and animal wastes constitutes a potential environmental risk in many countries. To date a handful of studies have considered the phytotoxicity of individual PPCPs in crop plants, however, little is known about the effect of PPCPs as mixtures at environmentally relevant levels. This study investigated the uptake and transport, physiological responses and detoxification of a mixture of 17 PPCPs in cucumber seedlings...
November 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29156437/home-composting-using-different-ratios-of-bulking-agent-to-food-waste
#20
Lucas Lourenço Castiglioni Guidoni, Roger Vasques Marques, Rodrigo Bilhalva Moncks, Fabiana Torma Botelho, Matheus Francisco da Paz, Luciara Bilhalva Corrêa, Érico Kunde Corrêa
The negative environmental impacts associated with home composting may be due to the absence of a defined operation criteria for the degradation process. In addition to the potentially low environmental impact in terms of energy and water usage, which is minimal to the manufacture of the composting unit and avoiding the processing and transportation of waste or byproduct, composting at home can also promote a reduction in the emission of unpleasant gases. The proportion of the food waste and bulking agents in the composting mixture may be decisive to fulfill good practices of waste stabilization...
November 17, 2017: Journal of Environmental Management
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