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https://www.readbyqxmd.com/read/29352924/producing-nanofibres-from-carrots-with-a-chemical-free-process
#1
Swambabu Varanasi, Leeav Henzel, Scot Sharman, Warren Batchelor, Gil Garnier
The production of nanofibres (NF) from fresh carrots residue was investigated with a mechanical process without using any pulping or bleaching chemicals. Refining with a PFI mill followed by mechanical fibrillation with a homogenizer was used to produce fine NF. Blanching with hot water was carried out to leach the extractives from carrot fibres prior to refining. The energy required to prepare carrot pulp is one order of magnitude lower than for wood pulp and the fibrillation of nanofibres from carrot residue is four times lower in energy than using wood pulp as feedstock...
March 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29349734/alternative-soilless-media-using-olive-mill-and-paper-waste-for-growing-ornamental-plants
#2
Antonios Chrysargyris, Omiros Antoniou, Andreas Tzionis, Munoo Prasad, Nikolaos Tzortzakis
Peat-based growing media are not ecologically sustainable and peat extraction threatens sensitive peatland ecosystem. In this study, olive-stone waste (OSW) and paper waste (PW) were used in different ratios-as growing media-for ornamental crop production, as peat (P) substitutes. Marigold (Calendula officinalis L.), petunia (Petunia x hybrita L.) and matthiola (Matthiola incana L.) plants were grown in (1) P (100%), (2) P:OSW (90%:10%), (3) P:OSW (70%:30%), and (4) P:OSW:PW (60%:20%:20%). The physicochemical properties of these substrates and the effects on plant growth were determined...
January 18, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29349044/evaluating-the-effect-of-enzymatic-pretreatment-on-the-anaerobic-digestibility-of-pulp-and-paper-biosludge
#3
Sofia Bonilla, Zahra Choolaei, Torsten Meyer, Elizabeth A Edwards, Alexander F Yakunin, D Grant Allen
Anaerobic digestion of biosludge has not yet been implemented in pulp mills due to low biogas yields. Enzymatic pretreatment of biosludge has shown improvements in biogas yields but results are varied. A key limitation of previous studies is that they fail to consider the COD contribution from the enzyme solutions. The aim of this study was to systematically investigate the potential for enzymatic pretreatment on the anaerobic digestibility of pulp mill biosludge. Out of the six enzymes tested, four enhanced the anaerobic digestibility of biosludge...
March 2018: Biotechnology Reports
https://www.readbyqxmd.com/read/29342223/development-of-a-job-exposure-matrix-for-noise-in-the-swedish-soft-tissue-paper-industry
#4
Richard Lee Neitzel, Marianne Andersson, Helena Eriksson, Kjell Torén, Eva Andersson
Objectives: Noise exposure is a common occupational hazard, but has not been sufficiently characterized in paper mills. We developed a job-exposure matrix (JEM) for noise exposure for use in estimating exposures among Swedish soft tissue paper mill workers. Methods: We used a combination of area and personal dosimetry noise exposure measurements made at four soft tissue paper mills by industry and research staff between 1977 and 2013 to estimate noise exposures by department, location, and job title...
December 16, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/29331769/source-identification-of-uranium-containing-materials-at-mine-legacy-sites-in-portugal
#5
A C Keatley, P G Martin, K R Hallam, O D Payton, R Awbery, F Carvalho, J M Oliveira, L Silva, M Malta, T B Scott
Whilst prior nuclear forensic studies have focused on identifying signatures to distinguish between different uranium deposit types, this paper focuses on providing a scientific basis for source identification of materials from different uranium mine sites within a single region, which can then be potentially used within nuclear forensics. A number of different tools, including gamma spectrometry, alpha spectrometry, mineralogy and major and minor elemental analysis, have been utilised to determine the provenance of uranium mineral samples collected at eight mine sites, located within three different uranium provinces, in Portugal...
January 10, 2018: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29329707/simultaneous-determination-of-117-pesticides-and-30-mycotoxins-in-raw-coffee-without-clean-up-by-lc-esi-ms-ms-analysis
#6
Bárbara Reichert, André de Kok, Ionara Regina Pizzutti, Jos Scholten, Carmem Dickow Cardoso, Martien Spanjer
This paper describes the optimization and validation of an acetonitrile based method for simultaneous extraction of multiple pesticides and mycotoxins from raw coffee beans followed by LC-ESI-MS/MS determination. Before extraction, the raw coffee samples were milled and then slurried with water. The slurried samples were spiked with two separate standard solutions, one containing 131 pesticides and a second with 35 mycotoxins, which were divided into 3 groups of different relative concentration levels. Optimization of the QuEChERS approach included performance tests with acetonitrile acidified with acetic acid or formic acid, with or without buffer and with or without clean-up of the extracts before LC-ESI-MS/MS analysis...
April 3, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29318607/the-profile-of-diabetes-healthcare-professionals-in-indonesia-a-scoping-review
#7
REVIEW
T Ligita, K Wicking, N Harvey, J Mills
AIM: To explore and synthesize evidence of the literature about healthcare professionals involved in the provision of diabetes management within an Indonesian context. BACKGROUND: Indonesia is challenged to control the major burden of diabetes prevalence rate that requires a multidimensional approach with the aim to optimize existing health services by involving healthcare professionals who can promote access and provide diabetes management. METHODS: This literature review, which is integrated with a scoping study framework, used the electronic databases including CINAHL, PubMed, Scopus and Web of Science to locate papers particular to the Indonesian context...
January 10, 2018: International Nursing Review
https://www.readbyqxmd.com/read/29318465/fabrication-of-semiconducting-methylammonium-lead-halide-perovskite-particles-by-spray-technology
#8
Mohammad-Reza Ahmadian-Yazdi, Morteza Eslamian
In this "nano idea" paper, three concepts for the preparation of methylammonium lead halide perovskite particles are proposed, discussed, and tested. The first idea is based on the wet chemistry preparation of the perovskite particles, through the addition of the perovskite precursor solution to an anti-solvent to facilitate the precipitation of the perovskite particles in the solution. The second idea is based on the milling of a blend of the perovskite precursors in the dry form, in order to allow for the conversion of the precursors to the perovskite particles...
January 10, 2018: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29306129/electrohydrolysis-pretreatment-for-enhanced-methane-production-from-lignocellulose-waste-pulp-and-paper-mill-sludge-and-its-kinetics
#9
C Veluchamy, V Wilson Raju, Ajay S Kalamdhad
A novel electrohydrolysis pretreatment enhances methane production from lignocellulose material during anaerobic digestion. A biochemical methane potential assay was carried out to determine the effect of direct current and the efficacy of electrohydrolysis pretreatment on biogas production. Methane yield was increased by 13.8%, to 301 ± 3 mL CH4/g VS, when lignocellulosic waste was pretreated with electrohydrolysis. A net energy gain of 13,224 kJ was realized after electrohydrolysis pretreatment, which was 1...
December 29, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29302992/intercountry-consensus-building-lessons-from-developing-a-chronic-conditions-self-management-support-framework
#10
Susan L Mills, Shabnam Ziabakhsh, Teresa J Brady, Janaki Jayanthan, Peter M Sargious
Self-management support initiatives that aim to improve the self-care of chronic conditions are considered a key part of a health promotion strategy for addressing the impacts of long-term illness. Given the growth of these activities and still evolving evidence base, thoughtful intercountry collaborations with subject matter experts can be an effective way to expedite building self-management support capacity, promoting the advancement of evidence, and developing effective policies and programs. The challenge is to find an effective consensus building process that promotes linkages between researchers and health promotion decisions makers across vast geographical boundaries and limited resources...
January 1, 2018: Health Promotion Practice
https://www.readbyqxmd.com/read/29286271/landmark-lecture-on-interventional-cardiology-interventional-cardiac-catheterisation-for-chd-the-past-present-and-the-future
#11
Ziyad M Hijazi, Damien Kenny
CHD affects millions of patients worldwide. Interventional therapies for CHD goes back to the mid-1960s when Bill Rashkind performed balloon atrial septostomy on a cyanotic baby with transposition of the great vessels. This was followed by development of balloon catheters to perform balloon valvuloplasties and angioplasties in the early to late 1980s. Although King and Mills performed the first transcatheter closure of secundum atrial septal defect in the mid-1970s, this procedure was better realised in the mid-1990s...
December 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/29274515/performance-of-waste-based-amendments-to-reduce-metal-release-from-mine-tailings-one-year-leaching-behaviour
#12
Luis Rodríguez, Rocío Gómez, Virtudes Sánchez, José Villaseñor, Jacinto Alonso-Azcárate
A one-year leaching experiment has been conducted in order to assess the effectiveness of several amendments on metal immobilization in mine tailings from an old Pb/Zn mining area of Central Spain (San Quintín mine). Demineralized water was used as leaching solution, selecting doses equivalent to the annual rainfall conditions of the studied area. Columns with mine tailings without any amendment and others treated with 10% of sugar foam (SF), 15% of drinking water treatment sludge (DWS), 30% of paper mill sludge (PMS) and 15% of olive mill waste (OMW) were used...
December 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29248561/downstream-processing-from-melt-granulation-towards-tablets-in-depth-analysis-of-a-continuous-twin-screw-melt-granulation-process-using-polymeric-binders
#13
W Grymonpré, G Verstraete, V Vanhoorne, J P Remon, T De Beer, C Vervaet
The concept of twin-screw melt granulation (TSMG) has steadily (re)-gained interest in pharmaceutical formulation development as an intermediate step during tablet manufacturing. However, to be considered as a viable processing option for solid oral dosage forms there is a need to understand all critical sources of variability which could affect this granulation technique. The purpose of this study was to provide an in-depth analysis of the continuous TSMG process in order to expose the critical process parameters (CPP) and elucidate the impact of process and formulation parameters on the critical quality attributes (CQA) of granules and tablets during continuous TSMG...
December 14, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/29236020/application-of-response-surface-methodology-as-a-new-pid-tuning-method-in-an-electrocoagulation-process-control-case
#14
Ş Camcıoğlu, B Özyurt, I C Doğan, H Hapoğlu
In this work the application of response surface methodology (RSM) to proportional-integral-derivative (PID) controller parameter tuning for electrocoagulation (EC) treatment of pulp and paper mill wastewater was researched. Dynamic data for two controlled variables (pH and electrical conductivity) were obtained under pseudo random binary sequence (PRBS) input signals applied to manipulated variables (acid and supporting electrolyte flow rates). Third order plus time delay model parameters were evaluated through System Identification Toolbox™ in MATLAB®...
December 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29230932/a-multi-modality-tracking-navigation-and-calibration-for-a-flexible-robotic-drill-system-for-total-hip-arthroplasty
#15
Ahmad Nazmi Bin Ahmad Fuad, Kamal Deep, Wei Yao
BACKGROUND: This paper presents a novel multi-modality tracking and navigation system that provides a unique capability to guild a flexible drill tip inside the bone with accurate curved tunnelling. METHODS: As the flexible drill tip cannot be tracked optically inside the bone, this research focuses on developing a hybrid tracking and navigation system for tracking a flexible drill tip by using both optical and kinematic tracking. The tracking information is used to guide the THA (total hip arthroplasty) procedure, providing a real-time virtual model of the flexible drill...
December 12, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/29227945/a-new-framework-proposal-towards-a-common-eu-agricultural-policy-with-the-best-sustainable-practices-for-the-re-use-of-olive-mill-wastewater
#16
REVIEW
T M Koutsos, T Chatzistathis, E I Balampekou
The disposal of olive mill wastewater (OMW) is a serious environmental issue for the Mediterranean countries. However, there is still no common European legislation on the management and the re-use of OMW in agriculture, in the frame of sustainable crop management and the standards for the safe OMW disposal and re-use are left to be set by each EU country, individually. This review paper presents the most effective and sustainable practices for OMW, (treatment, application and management), which can maximize the benefits of OMW on crops and soils, while minimizing the potential hazards for public health, thus promoting environmental sustainability...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29215074/structural-analysis-of-the-complex-between-influenza-b-nucleoprotein-and-human-importin-%C3%AE
#17
Alice Labaronne, Sigrid Milles, Amélie Donchet, Malene Ringkjøbing Jensen, Martin Blackledge, Jean-Marie Bourhis, Rob W H Ruigrok, Thibaut Crépin
Influenza viruses are negative strand RNA viruses that replicate in the nucleus of the cell. The viral nucleoprotein (NP) is the major component of the viral ribonucleoprotein. In this paper we show that the NP of influenza B has a long N-terminal tail of 70 residues with intrinsic flexibility. This tail contains the Nuclear Location Signal (NLS). The nuclear trafficking of the viral components mobilizes cellular import factors at different stages, making these host-pathogen interactions promising targets for new therapeutics...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29205478/preclinical-models-for-orthopedic-research-and-bone-tissue-engineering
#18
REVIEW
Aaron Schindeler, Rebecca J Mills, Justin D Bobyn, David G Little
In this review, we broadly define and discuss the preclinical rodent models that are used for orthopedics and bone tissue engineering. These range from implantation models typically used for biocompatibility testing and high-throughput drug screening, through to fracture and critical defect models used to model bone healing and severe orthopedic injuries. As well as highlighting the key methods papers describing these techniques, we provide additional commentary based on our substantive practical experience with animal surgery and in vivo experimental design...
December 4, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29205093/impact-of-microbial-proteases-on-biotechnological-industries
#19
Goutam Banerjee, Arun Kumar Ray
The demand of enzymes in industrial sectors is increasing rapidly due to their economical and ecological advantages. Micro-organisms produce different types of extracellular enzymes for maintaining their own metabolism, defense, and normal physiological condition. Among several enzymes, proteases have gained special attention in industrial sectors. Several sources of extracellular enzymes are reported by various researchers, but enzymes obtain from microbial sources have high demand in industries due to lower cost, high production rate, availability, stability, and diversity...
December 5, 2017: Biotechnology & Genetic Engineering Reviews
https://www.readbyqxmd.com/read/29204943/occurrence-distribution-and-composition-of-aliphatic-and-polycyclic-aromatic-hydrocarbons-in-sediment-cores-from-the-lower-fox-river-wisconsin-us
#20
Chase S Brewster, Virender K Sharma, Leslie Cizmas, Thomas J McDonald
The Lower Fox River is a 39 mile section which supports approximately 270,000 rural inhabitants across 18 counties, 303,000 metropolitan residents in Green Bay and Appleton, Wisconsin, and several large industrial complexes such as paper mills and power plants. This paper presents the distribution and concentrations of aliphatic (n-alkanes) and aromatic hydrocarbons (polycyclic aromatic hydrocarbons [PAHs]) as well as total organic carbon (TOC) in the Lower Fox River to identify the sources of hydrocarbon contamination...
December 5, 2017: Environmental Science and Pollution Research International
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