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https://www.readbyqxmd.com/read/29783132/characterization-of-biomass-waste-torrefaction-under-conventional-and-microwave-heating
#1
Shih-Hsin Ho, Congyu Zhang, Wei-Hsin Chen, Ying Shen, Jo-Shu Chang
To evaluate the potential of microwave heating for biomass torrefaction, the torrefaction performances and energy utilization of coffee grounds and microalga residue, under conventional and microwave heating were investigated and compared with each other. For the two biomass samples, the dehydrogenation of the coffee grounds was more sensitive to torrefaction severity, whereas the microalga residue consumed more energy under the same torrefaction conditions. Microwave heating under lower torrefaction severity had a higher energy efficiency...
May 13, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29783129/effect-of-surfactant-assisted-sonic-pretreatment-on-liquefaction-of-fruits-and-vegetable-residue-characterization-acidogenesis-biomethane-yield-and-energy-ratio
#2
M Shanthi, J Rajesh Banu, P Sivashanmugam
The present study explored the disintegration potential of fruits and vegetable residue through sodium dodecyl sulphate (SDS) assisted sonic pretreatment (SSP). In SSP method, initially the biomass barrier (lignin) was removed using SDS at different dosage, subsequently it was sonically disintegrated. The effect of SSP were assessed based on dissolved organic release (DOR) of fruits and vegetable waste and specific energy input. SSP method achieved higher DOR rate and suspended solids reduction (26% and 16%) at optimum SDS dosage of 0...
May 15, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29782996/reducing-waste-in-evaluation-studies-on-fall-risk-assessment-tools-for-older-people
#3
Gabriele Meyer, Ralph Möhler, Sascha Köpke
OBJECTIVE: To critically appraise the recognition of methodological challenges in evaluation studies on assessment tools and nurses' clinical judgement on fall risk in older people and suggest how to reduce respective research waste. STUDY DESIGN: Opinion paper and narrative review covering systematic reviews on studies assessing diagnostic accuracy and impact of assessment tools and/or nurses' clinical judgement. RESULTS: Eighteen reviews published in the last 15 years were analysed...
May 18, 2018: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/29782979/chondroitin-sulfate-from-sturgeon-bone-ameliorates-pain-of-osteoarthritis-induced-by-monosodium-iodoacetate-in-rats
#4
Yingjiao Sun, Guozhuan Zhang, Qian Liu, Xudong Liu, Lei Wang, Jianfeng Wang, Lishuang Liang
Chondroitin sulfate (CS) is an important component of the extracellular matrix of cartilage and has been widely used as one of the main drugs for the treatment of joint pain-related nutraceuticals and medicines. Sturgeon bone (SB) is the main waste during deep processing of sturgeons in fishery production. The present study was evaluated the therapeutic effect of CS from SB (CSSB) on monosodium iodoacetate (MIA)-induced osteoarthritis (OA) pain and further explored the potential medicinal value of CSSB. The OA pain model was induced by intra-articular injection of MIA and then treated with CSSB...
May 18, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29782978/a-potent-chitinase-from-bacillus-subtilis-for-the-efficient-bioconversion-of-chitin-containing-wastes
#5
Di Wang, Anjie Li, Hongyu Han, Tian Liu, Qing Yang
Bioconversion of chitin-containing waste to N-acetyl-d-glucosamine (GlcNAc) is of economic interest. Highly efficient chitinases are thus desirable. Bacillus subtilis is a well-known microorganism for industrial protein production and biocontrol, however its chitinolytic enzyme has not been studied in detail. In this study, BsChi from B. subtilis was recombinantly expressed in Escherichia coli and characterized as a potent chitinase for degrading crystalline chitin substrates such as α-chitin, β-chitin and crab shells...
May 18, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29782684/intelligent-mesoporous-materials-for-selective-adsorption-and-mechanical-release-of-organic-pollutants-from-water
#6
Siying Xie, Shanshan Wu, Sihan Bao, Yanqiu Wang, Yongtai Zheng, Danfeng Deng, Liping Huang, Lingling Zhang, Myongsoo Lee, Zhegang Huang
Despite recent advances in the porous materials for efficient removal of dissolved organic pollutants from water, the regeneration of porous characteristics for reuse with preventing secondary contamination remains a challenge. Here, novel supramolecular absorbents with hydrophobic pore are prepared by the self-assembly of propeller-shaped aromatic amphiphiles. The assembly of folded propeller provides a mesoporous environment within aromatic segments, which is suitable for the removal of organic pollutants from waste water...
May 21, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29781775/ambient-temperature-co-digestion-of-low-solids-municipal-and-industrial-waste-mixtures-insights-from-molecular-analyses
#7
Ramin Yazdani, Kyuhwan Shim, Zhi Chen, Christy Cheung, Matthew D Summers, Douglas W Williams, Reinhard Seiser, Susan K De Long
No abstract text is available yet for this article.
May 21, 2018: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/29781585/group-i-paks-support-muscle-regeneration-and-counteract-cancer-associated-muscle-atrophy
#8
Andrea Cerquone Perpetuini, Andrea David Re Cecconi, Michela Chiappa, Giulia Benedetta Martinelli, Claudia Fuoco, Giovanni Desiderio, Luisa Castagnoli, Cesare Gargioli, Rosanna Piccirillo, Gianni Cesareni
BACKGROUND: Skeletal muscle is characterized by an efficient regeneration potential that is often impaired during myopathies. Understanding the molecular players involved in muscle homeostasis and regeneration could help to find new therapies against muscle degenerative disorders. Previous studies revealed that the Ser/Thr kinase p21 protein-activated kinase 1 (Pak1) was specifically down-regulated in the atrophying gastrocnemius of Yoshida hepatoma-bearing rats. In this study, we evaluated the role of group I Paks during cancer-related atrophy and muscle regeneration...
May 21, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29781469/environmental-stewardship-the-nurse-s-role-in-sustainability
#9
Julie Kleber
With the largest body of employees in U.S. health care, the nursing profession is well positioned to tackle the challenges of waste reduction within hospital systems. The healthcare sector generates a massive amount of waste, contributing to environmental issues, such as air and water pollution. By unifying and engaging staff through shared governance models, nurses can reduce the overhead costs associated with waste management and help maintain fiscal integrity. Nurses have the ability to use their trusted skill sets and lead the way for sustainable, healthy communities and environments in which they serve...
June 1, 2018: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/29781403/life-cycle-cost-as-basis-to-optimize-waste-collection-in-space-and-time-a-methodology-for-obtaining-a-detailed-cost-breakdown-structure
#10
Vitor Sousa, Celia Dias-Ferreira, João M Vaz, Inês Meireles
Extensive research has been carried out on waste collection costs mainly to differentiate costs of distinct waste streams and spatial optimization of waste collection services (e.g. routes, number, and location of waste facilities). However, waste collection managers also face the challenge of optimizing assets in time, for instance deciding when to replace and how to maintain, or which technological solution to adopt. These issues require a more detailed knowledge about the waste collection services' cost breakdown structure...
May 1, 2018: Waste Management & Research
https://www.readbyqxmd.com/read/29781307/anti-pseudomonas-aeruginosa-activity-of-hemlock-conium-maculatum-apiaceae-essential-oil
#11
Michela Di Napoli, Mario Varcamonti, Adriana Basile, Maurizio Bruno, Filippo Maggi, Anna Zanfardino
Conium maculatum is a nitrophilous weed belonging to the Apiaceae family and occurring in hedgerows, pastures, waste ground, along rivers and roadsides. Little is known on the chemistry and bioactivity of other secondary metabolites occurring in the plant. In the present work, we have analysed the chemical composition and antimicrobial activity of the essential oils hydrodistilled from leaves and inflorescenes of C. maculatum growing in Sicily, Italy. The composition of essential oils was achieved by gas chromatography-mass spectrometry (GC-MS) analysis, whereas the inhibitory effects on the growth of two Gram negative strains, namely Escherichia coli and Pseudomonas aeruginosa were assessed by two different analysis...
May 21, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29780362/characterization-and-genomic-study-of-phage-vb_ecos-b2-infecting-multidrug-resistant-escherichia-coli
#12
Yue Xu, Xinyan Yu, Yu Gu, Xu Huang, Genyan Liu, Xiaoqiu Liu
The potential of bacteriophage as an alternative antibacterial agent has been reconsidered for control of pathogenic bacteria due to the widespread occurrence of multi-drug resistance bacteria. More and more lytic phages have been isolated recently. In the present study, we isolated a lytic phage named vB_EcoS-B2 from waste water. VB_EcoS-B2 has an icosahedral symmetry head and a long tail without a contractile sheath, indicating that it belongs to the family Siphoviridae . The complete genome of vB_EcoS-B2 is composed of a circular double stranded DNA of 44,283 bp in length, with 54...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29780057/prevalence-and-risk-factors-of-dengue-infection-in-khanh-hoa-province-viet-nam-a-stratified-cluster-sampling-survey
#13
Vien Quang Mai, Trịnh Thị Xuan Mai, Ngo Le Minh Tam, Le Trung Nghia, Kenichi Komada, Hitoshi Murakami
BACKGROUND: Dengue is a clinically important arthropod-borne viral disease with increasing global incidence. Here we aimed to estimate the prevalence of dengue infections in Khanh Hoa Province, central Viet Nam, and to identify risk factors for infection. METHODS: We performed a stratified cluster sampling survey including residents of 3-60 years of age in Nha Trang City, Ninh Hoa District and Dien Khanh District, Khanh Hoa Province, in October 2011. Immunoglobulin G (IgG) and immunoglobulin M (IgM) against dengue were analyzed using a rapid test kit...
May 19, 2018: Journal of Epidemiology
https://www.readbyqxmd.com/read/29779722/the-impact-of-using-an-intravenous-workflow-management-system-ivwms-on-cost-and-patient-safety
#14
Alex C Lin, Yihong Deng, Hilal Thaibah, John Hingl, Jonathan Penm, Marianne F Ivey, Mark Thomas
PURPOSE: The aim of this study was to determine the financial costs associated with wasted and missing doses before and after the implementation of an intravenous workflow management system (IVWMS) and to quantify the number and the rate of detected intravenous (IV) preparation errors. METHOD: A retrospective analysis of the sample hospital information system database was conducted using three months of data before and after the implementation of an IVWMS System (DoseEdge® ) which uses barcode scanning and photographic technologies to track and verify each step of the preparation process...
July 2018: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29779698/patients-with-concurrent-tuberculosis-and-diabetes-have-a-pro-atherogenic-plasma-lipid-profile
#15
Frank Vrieling, Katharina Ronacher, Léanie Kleynhans, Erik van den Akker, Gerhard Walzl, Tom H M Ottenhoff, Simone A Joosten
BACKGROUND: Type 2 diabetes mellitus (DM) is a major risk factor for development of tuberculosis (TB), however the underlying molecular foundations are unclear. Since lipids play a central role in the development of both DM and TB, lipid metabolism may be important for TB-DM pathophysiology. METHODS: A 1 H NMR spectroscopy-based platform was used to determine 225 lipid and other metabolic intermediates in plasma samples of healthy controls (n = 50) and patients with TB (n = 50), DM (n = 50) or TB-DM (n = 27)...
May 17, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29779495/closing-the-phosphorus-cycle-in-a-food-system-insights-from-a-modelling-exercise
#16
H R J van Kernebeek, S J Oosting, M K van Ittersum, R Ripoll-Bosch, I J M de Boer
Mineral phosphorus (P) used to fertilise crops is derived from phosphate rock, which is a finite resource. Preventing and recycling mineral P waste in the food system, therefore, are essential to sustain future food security and long-term availability of mineral P. The aim of our modelling exercise was to assess the potential of preventing and recycling P waste in a food system, in order to reduce the dependency on phosphate rock. To this end, we modelled a hypothetical food system designed to produce sufficient food for a fixed population with a minimum input requirement of mineral P...
May 21, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29779227/risk-profile-of-young-people-admitted-to-hospital-for-suicidal-behaviour-in-melbourne-australia
#17
Rohan Borschmann, Patrick Stark, Chidambaram Prakash, Susan M Sawyer
AIM: Self-harm and suicidal behaviour is most prevalent during adolescence, but little is known about the risk profile of adolescents admitted to hospital for suicidal behaviour. Young people who self-harm are at an increased risk of mortality compared to those who do not self-harm; adolescents admitted to hospital for suicidal behaviour are particularly at risk. The aim of this study was to generate a risk profile of adolescents admitted to hospital with suicidal behaviour. METHODS: We conducted a 12-month retrospective audit of adolescent admissions to the mental health inpatient unit at a tertiary children's hospital in Melbourne, Australia...
May 20, 2018: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29778831/black-plastics-linear-and-circular-economies-hazardous-additives-and-marine-pollution
#18
REVIEW
Andrew Turner
Black products constitute about 15% of the domestic plastic waste stream, of which the majority is single-use packaging and trays for food. This material is not, however, readily recycled owing to the low sensitivity of black pigments to near infrared radiation used in conventional plastic sorting facilities. Accordingly, there is mounting evidence that the demand for black plastics in consumer products is partly met by sourcing material from the plastic housings of end-of-life waste electronic and electrical equipment (WEEE)...
May 17, 2018: Environment International
https://www.readbyqxmd.com/read/29778793/impact-of-vermiculite-on-ammonia-emissions-and-organic-matter-decomposition-of-food-waste-during-composting
#19
Zaihua He, Hong Lin, Jiewei Hao, Xiangshi Kong, Kai Tian, Zhanlin Bei, Xingjun Tian
This study investigated the effects of adding vermiculite to the food waste composting process. Four treatments with varying vermiculite percent compositions, 0%, 5%, 10% and 15% (w/w, wet weight of food waste basis) mixed with initial food waste were designed and then composted for 42 days. Results show that adding vermiculite prolongs the thermophilic phase, speeds up the organic matter loss, reduces the NH3 emissions and electrical conductivity values. Compared to the control, the amount of nitrogen loss through NH3 emissions in the treatments of 5%, 10% and 15% vermiculite decreased by 9...
May 9, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29778681/portable-x-ray-fluorescence-for-the-detection-of-pop-bfrs-in-waste-plastics
#20
Martin Sharkey, Mohamed Abou-Elwafa Abdallah, Daniel S Drage, Stuart Harrad, Harald Berresheim
The purpose of this study was to establish the efficacy of portable X-ray fluorescence (XRF) instrumentation as a screening tool for a variety of end of life plastics which may contain excess amounts of brominated flame retardants (BFRs), in compliance with European Union (EU) and United Nations Environment Programme (UNEP) legislative limits (low POP concentration limits - LPCLs). 555 samples of waste plastics were collected from eight waste and recycling sites in Ireland, including waste electrical and electronic equipment (WEEE), textiles, polyurethane foams (PUFs), and expanded polystyrene foams...
May 17, 2018: Science of the Total Environment
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