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https://www.readbyqxmd.com/read/28718785/uv-surface-treatment-of-fungal-resistant-polyether-polyurethane-film-induced-growth-of-entomopathogenic-fungi
#1
Gabriela Albara Lando, Letícia Marconatto, Felipe Kessler, William Lopes, Augusto Schrank, Marilene Henning Vainstein, Daniel Eduardo Weibel
Synthetic polymers are the cause of some major environmental impacts due to their low degradation rates. Polyurethanes (PU) are widely used synthetic polymers, and their growing use in industry has produced an increase in plastic waste. A commercial polyether-based thermoplastic PU with hydrolytic stability and fungus resistance was only attacked by an entomopathogenic fungus, Metarhiziumanisopliae, when the films were pre-treated with Ultraviolet (UV) irradiation in the presence of reactive atmospheres. Water contact angle, Fourier transform infrared spectroscopy in attenuated total reflection mode (FTIR-ATR), scanning electron microscopy (SEM), and profilometer measurements were mainly used for analysis...
July 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28718709/bioaerosols-concentrations-in-working-areas-in-biomethanization-facilities
#2
Marie-Eve Dubuis, Hamza M'Bareche, Marc Veillette, Bouchra Bakhiyi, Joseph Zayed, Jacques Lavoie, Caroline Duchaine
This study sought to fill the gap in information about the type and the concentration of bioaerosols present in the air of biomethanization facilities (BF). Evaluation of bioaerosol composition and concentration was achieved in two biomethanization facilities located in Eastern Canada, during summer and winter. In order to have a thorough understanding of the studied environment, the methodology combined culture of bacteria and molds, qPCR for specific microorganisms, endotoxin quantification and NGS for bacterial diversity...
July 18, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28718391/corrigendum
#3
(no author information available yet)
Operating and environmental performances of commercial-scale waste gasification and melting technology by Nobuhiro Tanigaki, Yasuka Fujinaga, Hirohisa Kajiyama, and Yoshihiro Ishida. Waste Management & Research 2013; 31: 1118-1124, DOI: 10.1177/0734242X13502386. The authors regret that they omitted the following declaration of conflicting interest in the article: Declaration of Conflicting Interest At the time of publication, all authors were employed by Nippon Steel & Sumikin Engineering Co., Ltd. Technology developed by Nippon Steel & Sumikin Engineering Co...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28717786/setting-priorities-for-diabetic-retinopathy-clinical-research-and-identifying-evidence-gaps
#4
Jimmy T Le, Susan Hutfless, Tianjing Li, Neil M Bressler, James Heyward, Ava K Bittner, Adam Glassman, Kay Dickersin
PURPOSE: Prioritizing comparative effectiveness research may contribute to obtaining answers that clinicians perceive they need and may minimize research that could be considered wasteful. Our objective was to identify evidence gaps and set priorities for new systematic reviews and randomized controlled trials for managing diabetic retinopathy (DR), including diabetic macular edema (DME). DESIGN: Cross-sectional study. PARTICIPANTS: Diabetic Retinopathy Clinical Research Network (DRCR...
March 2017: Ophthalmology retina
https://www.readbyqxmd.com/read/28714485/health-care-waste-management-practice-in-health-care-institutions-of-nepal
#5
H D Joshi, T Acharya, R Ayer, P Dhakal, K B Karki, M Dhimal
BACKGROUND: Medical waste is considered as a major public health hazard. In a developing country like Nepal, there is much concern about the management practice of medical waste. This study aimed to assess Health Care Waste Management practice among Health Care Institutions in Nepal. METHODS: A cross sectional study was carried out between July 2012 to June 2013 in 62 different Health Care Institutions, selected from stratified proportionate random sampling technique from all administrative regions of Nepal...
January 2017: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/28713755/tumor-induced-osteomalacia-a-sherlock-holmes-approach-to-diagnosis-and-management
#6
G V Chanukya, Manoj Mengade, Jagadishwar Goud, I Satish Rao, Anuj Jain
Tumor-induced osteomalacia (TIO) is a subtype of paraneoplastic syndrome associated with hypophosphatemia due to renal phosphate wasting in adults. The humoral factor responsible for clinical picture known as fibroblast growth factor 23 (FGF23) is most often secreted by benign yet elusive mesenchymal tumors, difficult to localize, access, and excise completely; rarely, they are multiple and malignant. Paradoxical inappropriately normal or low levels of 1,25-dihydroxyvitamin D in the setting of hypophosphatemia is due to suppressive effect of FGF23...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28712597/comparative-lifecycle-assessment-of-alternatives-for-waste-management-in-rio-de-janeiro-investigating-the-influence-of-an-attributional-or-consequential-approach
#7
A Bernstad Saraiva, R G Souza, R A B Valle
The environmental impacts from three management alternatives for organic fraction of municipal solid waste were compared using lifecycle assessment methodology. The alternatives (sanitary landfill, selective collection of organic waste for anaerobic digestion and anaerobic digestion after post-separation of organic waste) were modelled applying an attributional as well as consequential approach, in parallel with the aim of identifying if and how these approaches can affect results and conclusions. The marginal processes identified in the consequential modelling were in general associated with higher environmental impacts than average processes modelled with an attributional approach...
July 13, 2017: Waste Management
https://www.readbyqxmd.com/read/28712134/phenotypic-and-genotypic-characterisation-of-clinically-relevant-bacteria-isolated-from-dental-waste-and-waste-workers-hands-mucosas-and-coats
#8
Thaysa Leite Tagliaferri, Cristina Dutra Vieira, Maria Auxiliadora Roque de Carvalho, Luiz Carlos Duarte Ladeira, Paula Prazeres Magalhães, Luiz de Macêdo Farias, Simone Gonçalves Dos Santos
Infectious wastes are potential sources of pathogenic microorganisms, which may represent a risk to the professionals who manage them. In this study we aimed to characterize the infectious bacteria present in dental waste and waste workers. The dental waste produced over 24 hours was collected and waste workers were sampled by swabbing. Isolate resistance profiles were characterized by Vitek(®) and PCR and biofilm formation by Congo Red agar, string test and microtiter assay. To assess similarity between the waste and the workers' samples, a random amplified polymorphic DNA test was used...
July 16, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28711809/assessing-the-impact-of-hazardous-waste-on-children-s-health-the-exposome-paradigm
#9
D A Sarigiannis
Assessment of the health impacts related to hazardous waste is a major scientific challenge with multiple societal implications. Most studies related to associations between hazardous waste and public health do not provide established of mechanistic links between environmental exposure and disease burden, resulting in ineffective waste management options. The exposome concept comes to overhaul the nature vs. nurture paradigm and embraces a world of dynamic interactions between environmental exposures, endogenous exposures and genetic expression in humans...
July 13, 2017: Environmental Research
https://www.readbyqxmd.com/read/28711296/anaerobic-digestion-of-food-waste-a-review-focusing-on-process-stability
#10
REVIEW
Lei Li, Xuya Peng, Xiaoming Wang, Di Wu
Food waste (FW) is rich in biomass energy, and increasing numbers of national programs are being established to recover energy from FW using anaerobic digestion (AD). However process instability is a common operational issue for AD of FW. Process monitoring and control as well as microbial management can be used to control instability and increase the energy conversion efficiency of anaerobic digesters. Here, we review research progress related to these methods and identify existing limitations to efficient AD; recommendations for future research are also discussed...
July 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28709690/municipal-solid-waste-system-analysis-through-energy-consumption-and-return-approach
#11
Tihomir Tomić, Daniel Rolph Schneider
Inappropriate waste management and poor resource efficiency are two of the biggest problems which European Union is trying to solve through Landfill Directive, Waste Framework Directive and Circular Economy Package by increasing recycling and reuse and reducing waste disposal. In order to meet set goals, new European Union member states must quickly change national legislature and implement appropriate solutions. In the circumstances of strong EU resource and energy dependence, decision makers need to analyse which of the considered waste management systems leads to higher overall benefits ie...
July 11, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28709521/management-of-plastic-wastes-at-brazilian-ports-and-diagnosis-of-their-generation
#12
Clarice Neffa Gobbi, Vânia Maria Lourenço Sanches, Elen Beatriz Acordi Vasques Pacheco, Maria José de Oliveira Cavalcanti Guimarães, Marcos Aurélio Vasconcelos de Freitas
This study evaluated the management of plastic wastes at 20 Brazilian maritime ports, from three sources: vessels, leased and non-leased areas. The data were obtained from documents on port wastes organized in a relational database with defined protocols (closed form). Analysis of the spreadsheets prepared and field visits revealed that the main bottleneck in managing plastic wastes at ports is their segregation. In general, more material is segregated and sent for recycling from leased areas than non-leased ones (administered by the government)...
July 11, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28709105/fundamental-mechanisms-and-reactions-in-non-catalytic-subcritical-hydrothermal-processes-a-review
#13
REVIEW
Azadeh Yousefifar, Saeid Baroutian, Mohammed M Farid, Daniel J Gapes, Brent R Young
The management and disposal of solid waste is of increasing concern across the globe. Hydrothermal processing of sludge has been suggested as a promising solution to deal with the considerable amounts of sludge produced worldwide. Such a process not only degrades organic compounds and reduces waste volume, but also provides an opportunity to recover valuable substances. Hydrothermal processing comprises two main sub-processes: wet oxidation (WO) and thermal hydrolysis (TH), in which the formation of various free radicals results in the production of different intermediates...
June 30, 2017: Water Research
https://www.readbyqxmd.com/read/28704504/sanitation-practices-and-perceptions-in-kakuma-refugee-camp-kenya-comparing-the-status-quo-with-a-novel-service-based-approach
#14
Raymond Nyoka, Andrew D Foote, Emily Woods, Hana Lokey, Ciara E O'Reilly, Fred Magumba, Patrick Okello, Eric D Mintz, Nina Marano, Jamae F Morris
Globally, an estimated 2.5 billion people lack access to improved sanitation. Unimproved sanitation increases the risk of morbidity and mortality, especially in protracted refugee situations where sanitation is based on pit latrine use. Once the pit is full, waste remains in the pit, necessitating the construction of a new latrine, straining available land and funding resources. A viable, sustainable solution is needed. This study used qualitative and quantitative methods to design, implement, and pilot a novel sanitation system in Kakuma refugee camp, Kenya...
2017: PloS One
https://www.readbyqxmd.com/read/28703185/sustainable-development-manage-chemicals-and-waste-globally
#15
Quanyin Tan, Jinhui Li
No abstract text is available yet for this article.
July 12, 2017: Nature
https://www.readbyqxmd.com/read/28700235/quantitative-crassphage-pcr-assays-for-human-fecal-pollution-measurement
#16
Elyse Stachler, Catherine Kelty, Mano Sivaganesan, Xiang Li, Kyle Bibby, Orin C Shanks
Environmental waters are monitored for fecal pollution to protect public health and water resources. Traditionally, general fecal indicator bacteria are used; however, they cannot distinguish human fecal waste from other animal pollution sources. Recently, a novel bacteriophage, crAssphage, was discovered by metagenomic data mining and reported to be abundant in and closely associated with human fecal waste. To confirm bioinformatic predictions, 384 primer sets were designed along the length of the crAssphage genome...
July 12, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28699841/co-digestion-of-agricultural-and-municipal-waste-to-produce-energy-and-soil-amendment
#17
Maritza A Macias-Corral, Zohrab A Samani, Adrian T Hanson, Paul A Funk
In agriculture, manure and cotton gin waste are major environmental liabilities. Likewise, grass is an important organic component of municipal waste. These wastes were combined and used as substrates in a two-phase, pilot-scale anaerobic digester to evaluate the potential for biogas (methane) production, waste minimisation, and the digestate value as soil amendment. The anaerobic digestion process did not show signs of inhibition. Biogas production increased during the first 2 weeks of operation, when chemical oxygen demand and volatile fatty acid concentrations and the organic loading rate to the system were high...
July 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28699610/survival-and-recovery-in-severely-wasted-under-five-children-without-community-management-of-acute-malnutrition-programme
#18
Harshpal Singh Sachdev, Sikha Sinha, Neha Sareen, R M Pandey, Umesh Kapil
OBJECTIVE: To evaluate recovery and survival of severely wasted children without community management of acute malnutrition programme. DESIGN: Single time point follow-up (24th December 2013 - 2nd April, 2014) of severely wasted children identified in a community-based cross-sectional survey (September 2012 - October 2013). SETTING: Rural Meerut District, Uttar Pradesh, India. PARTICIPANTS: 409 severely wasted (WHO weight-for-height <-3Z), 6- to 59-month-old children...
July 11, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28699076/exploring-the-effects-of-acid-mine-drainage-on-diatom-teratology-using-geometric-morphometry
#19
Adriana Olenici, Saúl Blanco, María Borrego-Ramos, Laura Momeu, Călin Baciu
Metal pollution of aquatic habitats is a major and persistent environmental problem. Acid mine drainage (AMD) affects lotic systems in numerous and interactive ways. In the present work, a mining area (Roșia Montană) was chosen as study site, and we focused on two aims: (i) to find the set of environmental predictors leading to the appearance of the abnormal diatom individuals in the study area and (ii) to assess the relationship between the degree of valve outline deformation and AMD-derived pollution. In this context, morphological differences between populations of Achnanthidium minutissimum and A...
July 11, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28697379/efficacy-and-evaluation-of-environmental-management-system-to-control-sandfly-vector-of-kala-azar
#20
D S Dinesh, S Kumari, F Hassan, V Kumar, V P Singh, P Das
The established vector for visceral leishmaniasis, Phlebotomus argentipes (Diptera: Psychodidae) breeds inside the human dwellings and cattle shed under crevices at the base of the wall. P. argentipes was controlled by plastering the base of wall (9″height × 9″base). The study was conducted in two phases: (i) Screening of plastering materials (ii) validation of the most suitable material. During the first phase (2014); four intervention materials were evaluated in four different arms: (i) cement (ii) brick chimney fly ash (BCFA i...
July 8, 2017: Journal of Environmental Management
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