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https://www.readbyqxmd.com/read/28828552/total-and-settling-velocity-fractionated-pollution-potential-of-sewer-sediments-in-jiaxing-china
#1
Yongchao Zhou, Ping Zhang, Yiping Zhang, Jin Li, Tuqiao Zhang, Tingchao Yu
Sewer sediments and their associated contaminant released along with wet-weather discharges pose potential pollution risks to environment. This paper presents total characteristics of sediments collected from Jiaxing, China. Size distribution and concentrations of volatile solids (VS) and four metals (Pb, Cu, Zn, Cr) of sediment samples from seven land use categories were analyzed. Then, the sediment samples were graded five fractions according to its settling velocity through the custom-built settling velocity-grading device...
August 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28827228/a-content-analysis-of-the-representation-of-statins-in-the-british-newsprint-media
#2
Julia Chisnell, Tom Marshall, Chris Hyde, Zhivko Zhelev, Lora E Fleming
OBJECTIVE: This study reviewed the news media coverage of statins, seeking to identify specific trends or differences in viewpoint between media outlets and examine common themes. DESIGN: The study is a content analysis of the frequency and content of the reporting of statins in a selection of the British newsprint media. It involved an assessment of the number, timing and thematic content of articles followed by a discourse analysis examining the underlying narratives...
August 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28822612/leaching-behaviour-of-incineration-bottom-ash-in-a-reuse-scenario-12years-field-data-vs-lab-test-results
#3
Martina Di Gianfilippo, Jiri Hyks, Iason Verginelli, Giulia Costa, Ole Hjelmar, Francesco Lombardi
Several types of standardized laboratory leaching tests have been developed during the past few decades to evaluate the leaching behaviour of waste materials as a function of different parameters, such as the pH of the eluate and the liquid to solid ratio. However, the link between the results of these tests and leaching data collected from the field (e.g. in disposal or reuse scenarios) is not always straightforward. In this work, we compare data obtained from an on-going large scale field trial, in which municipal solid waste incineration bottom ash is being tested as road sub-base material, with the results obtained from percolation column and pH-dependence laboratory leaching tests carried out on the bottom ash at the beginning of the test...
August 16, 2017: Waste Management
https://www.readbyqxmd.com/read/28821474/validation-relaxation-a-quality-assurance-strategy-for-electronic-data-collection
#4
Avi Kenny, Nicholas Gordon, Thomas Griffiths, John D Kraemer, Mark J Siedner
BACKGROUND: The use of mobile devices for data collection in developing world settings is becoming increasingly common and may offer advantages in data collection quality and efficiency relative to paper-based methods. However, mobile data collection systems can hamper many standard quality assurance techniques due to the lack of a hardcopy backup of data. Consequently, mobile health data collection platforms have the potential to generate datasets that appear valid, but are susceptible to unidentified database design flaws, areas of miscomprehension by enumerators, and data recording errors...
August 18, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28819711/measurement-invariance-the-lack-thereof-and-modeling-change
#5
Michael C Edwards, Carrie R Houts, R J Wirth
PURPOSE: Measurement invariance issues should be considered during test construction. In this paper, we provide a conceptual overview of measurement invariance and describe how the concept is implemented in several different statistical approaches. Typical applications look for invariance over things such as mode of administration (paper and pencil vs. computer based), language/translation, age, time, and gender, to cite just a few examples. To the extent that the relationships between items and constructs are stable/invariant, we can be more confident in score interpretations...
August 17, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28818635/linking-the-tao-biomathics-and-information-through-the-logic-of-energy
#6
REVIEW
Joseph E Brenner
The knowledge accumulated in West and East is incomplete in different ways. The mainstream Western approach has contributed the basis for modern science, but indications have appeared in the Western literature that something has been missing in it that Eastern thought could offer. This paper explores the similarities and differences between Eastern and Western approaches to knowledge and whether a trend exists toward their conjunction or convergence. I suggest that a process of conjunction of these different modes of exploration of what the concepts of 'Life and Mind' really entail, at the interface of philosophy and science, is taking place in the areas of information and biomathics...
August 14, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/28818046/can-resources-moderate-the-impact-of-levels-of-frailty-on-adverse-outcomes-among-pre-frail-older-people-a-longitudinal-study
#7
Linda P M Op Het Veld, Bart H L Ament, Erik van Rossum, Gertrudis I J M Kempen, Henrica C W de Vet, KlaasJan Hajema, Anna J H M Beurskens
BACKGROUND: Higher levels of frailty result in higher risks of adverse frailty outcomes such as hospitalisation and mortality. There are, however, indications that more factors than solely frailty play a role in the development of these outcomes. The presence of resources, e.g. sufficient income and good self-management abilities, might slow down the pathway from level of frailty to adverse outcomes (e.g. mortality). In the present paper we studied whether resources (i.e. educational level, income, availability of informal care, living situation, sense of mastery and self-management abilities) moderate the impact of the level of frailty on the adverse outcomes mortality, hospitalisation and the development of disability over a two-year period...
August 17, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28817593/a-systematic-review-of-context-bias-in-invasion-biology
#8
Robert J Warren, Joshua R King, Charlene Tarsa, Brian Haas, Jeremy Henderson
The language that scientists use to frame biological invasions may reveal inherent bias-including how data are interpreted. A frequent critique of invasion biology is the use of value-laden language that may indicate context bias. Here we use a systematic study of language and interpretation in papers drawn from invasion biology to evaluate whether there is a link between the framing of papers and the interpretation of results. We also examine any trends in context bias in biological invasion research. We examined 651 peer-reviewed invasive species competition studies and implemented a rigorous systematic review to examine bias in the presentation and interpretation of native and invasive competition in invasion biology...
2017: PloS One
https://www.readbyqxmd.com/read/28816556/maternal-mortality-in-the-last-triennium-of-the-millennium-development-goal-era-at-the-obafemi-awolowo-university-teaching-hospitals-complex-ile-ife-nigeria
#9
Ibraheem Olayemi Awowole, Olusegun Olalekan Badejoko, Oluwafemi Kuti, Omotade Adebimpe Ijarotimi, Oluwaseun Oludotun Sowemimo, Ifeoluwa Emmanuel Ogunduyile
The maternal mortality ratio (MMR) of Nigeria remains high. This retrospective study aims to suggest evidence-based strategies towards achieving the sustainable development goal target 3.1 at the Obafemi Awolowo University Teaching Hospital (OAUTHC), Nigeria by providing contemporary data on MMR between October 2012 and September 2015. There were 86 maternal deaths and 5243 live births over the triennium, with annual MMRs of 1744, 1622 and 1512/100,000 live births, respectively. Fifty-six (65.2%) were postpartum deaths, while 44 (51...
August 17, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28816037/catalytic-asymmetric-oxygenations-with-the-environmentally-benign-oxidants-h2o2-and-o2
#10
Konstantin P Bryliakov
The discovery of simple and efficient catalyst systems for the asymmetric oxofunctionalization of hydrocarbons is a challenging task of catalytic chemistry. In this paper, we give an overview of catalyst systems capable of conducting asymmetric oxygenative transformations of organic molecules and, in line with the major trend to sustainability, relying on green oxidants H2O2 and O2 as the ultimate oxygen source. The full historical period of asymmetric oxidation catalysis (1970 to the present day) is covered; both transition-metal-based and organocatalytic systems are considered...
August 17, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28813902/hybrid-position-and-orientation-tracking-for-a-passive-rehabilitation-table-top-robot
#11
K K Wojewoda, P R Culmer, J F Gallagher, A E Jackson, M C Levesley
This paper presents a real time hybrid 2D position and orientation tracking system developed for an upper limb rehabilitation robot. Designed to work on a table-top, the robot is to enable home-based upper-limb rehabilitative exercise for stroke patients. Estimates of the robot's position are computed by fusing data from two tracking systems, each utilizing a different sensor type: laser optical sensors and a webcam. Two laser optical sensors are mounted on the underside of the robot and track the relative motion of the robot with respect to the surface on which it is placed...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813899/the-effects-of-auditory-and-visual-cues-on-timing-synchronicity-for-robotic-rehabilitation
#12
Brittney A English, Ayanna M Howard
In this paper, we explore how the integration of auditory and visual cues can help teach the timing of motor skills for the purpose of motor function rehabilitation. We conducted a study using Amazon's Mechanical Turk in which 106 participants played a virtual therapy game requiring wrist movements. To validate that our results would translate to trends that could also be observed during robotic rehabilitation sessions, we recreated this experiment with 11 participants using a robotic wrist rehabilitation system as means to control the therapy game...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813013/recent-advances-in-electrospun-nanofiber-interfaces-for-biosensing-devices
#13
REVIEW
Eleni Sapountzi, Mohamed Braiek, Jean-François Chateaux, Nicole Jaffrezic-Renault, Florence Lagarde
Electrospinning has emerged as a very powerful method combining efficiency, versatility and low cost to elaborate scalable ordered and complex nanofibrous assemblies from a rich variety of polymers. Electrospun nanofibers have demonstrated high potential for a wide spectrum of applications, including drug delivery, tissue engineering, energy conversion and storage, or physical and chemical sensors. The number of works related to biosensing devices integrating electrospun nanofibers has also increased substantially over the last decade...
August 16, 2017: Sensors
https://www.readbyqxmd.com/read/28811120/impact-of-caregiver-incentives-on-child-health-evidence-from-an-experiment-with-anganwadi-workers-in-india
#14
Prakarsh Singh, William A Masters
This paper tests the effectiveness of performance pay and bonuses among government childcare workers in India. In a controlled study of 160 ICDS centers serving over 4000 children, we randomly assign workers to either fixed bonuses or payments based on the nutritional status of children in their care, and also collect data from a control group receiving only standard salaries. In all three study arms mothers receive nutrition information. We find that performance pay reduces underweight prevalence by about 5 percentage points over 3 months, and height improves by about one centimeter...
August 1, 2017: Journal of Health Economics
https://www.readbyqxmd.com/read/28811032/recent-advancements-and-future-trends-in-environmental-analysis-sample-preparation-liquid-chromatography-and-mass-spectrometry
#15
REVIEW
Virginia Pérez-Fernández, Lucia Mainero Rocca, Pierpaolo Tomai, Salvatore Fanali, Alessandra Gentili
Among the thousands of chemicals having potential to enter the environment, the NORMAN network has identified at least 700 substances categorized into 20 classes in the European surface waters. Pesticides, pharmaceuticals, disinfection by-products, wood preservation and industrial chemicals are the prominent classes. Since the impact of these substances on aquatic life and human health might be dramatic, action is urgently required at multiple levels; one of them is just related to the development of more and more sensible and selective analytical methods...
August 29, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28810795/the-effects-of-slit-like-confinement-on-flow-induced-polymer-deformation
#16
Aishani Ghosal, Binny J Cherayil
This paper is broadly concerned with the dynamics of a polymer confined to a rectangular slit of width D and deformed by a planar elongational flow of strength γ̇. It is interested, more specifically, in the nature of the coil-stretch transition that such polymers undergo when the flow strength γ̇ is varied, and in the degree to which this transition is affected by the presence of restrictive boundaries. These issues are explored within the framework of a finitely extensible Rouse model that includes pre-averaged surface-mediated hydrodynamic interactions...
August 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28808984/multiple-gas-phase-conformations-of-a-synthetic-linear-poly-acrylamide-polymer-observed-using-ion-mobility-mass-spectrometry
#17
Jean R N Haler, Johann Far, Abdelhafid Aqil, Jan Claereboudt, Nick Tomczyk, Kevin Giles, Christine Jérôme, Edwin De Pauw
Ion mobility-mass spectrometry (IM-MS) has emerged as a powerful separation and identification tool to characterize synthetic polymer mixtures and topologies (linear, cyclic, star-shaped,…). Electrospray coupled to IM-MS already revealed the coexistence of several charge state-dependent conformations for a single charge state of biomolecules with strong intramolecular interactions, even when limited resolving power IM-MS instruments were used. For synthetic polymers, the sample's polydispersity allows the observation of several chain lengths...
August 14, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28807587/prevention-of-suicide-with-regulations-aimed-at-restricting-access-to-highly-hazardous-pesticides-a-systematic-review-of-the-international-evidence
#18
David Gunnell, Duleeka Knipe, Shu-Sen Chang, Melissa Pearson, Flemming Konradsen, Won Jin Lee, Michael Eddleston
BACKGROUND: Pesticide self-poisoning accounts for 14-20% of suicides worldwide. Regulation aimed at restricting access to pesticides or banning highly hazardous pesticides is one approach to reducing these deaths. We systematically reviewed the evidence of the effectiveness of pesticide regulation in reducing the incidence of pesticide suicides and overall suicides. METHODS: We did a systematic review of the international evidence. We searched MEDLINE, PsycINFO, and Embase for studies published between Jan 1, 1960, and Dec 31, 2016, which investigated the effect of national or regional bans, and sales or import restrictions, on the availability of one or more pesticides and the incidence of suicide in different countries...
August 11, 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28807249/current-trends-in-multimodality-treatment-of-esophageal-and-gastroesophageal-junction-cancer-review-article
#19
REVIEW
Fredrik Klevebro, Simon Ekman, Magnus Nilsson
PURPOSE: Multimodality treatment has now been widely introduced in the curatively intended treatment of esophageal and gastroesophageal junction cancer. We aim to give an overview of the scientific evidence for the available treatment strategies and to describe which trends that are currently developing. METHODS: We conducted a review of the scientific evidence for the different curatively intended treatment strategies that are available today. Relevant articles of randomized controlled trials, cohort studies, and meta analyses were included...
September 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28806555/environmental-and-socio-economic-sustainability-appraisal-of-contaminated-land-remediation-strategies-a-case-study-at-a-mega-site-in-china
#20
Yinan Song, Deyi Hou, Junli Zhang, David O'Connor, Guanghe Li, Qingbao Gu, Shupeng Li, Peng Liu
Green and sustainable remediation (GSR) has become a global trend in the contaminated land remediation field. Growing numbers of countries have adopted GSR procedures published in regulatory and/or technical guidance. China is fast becoming one of the largest remediation markets in the world, and is beginning to engage with GSR. Among other efforts, a taskforce is currently developing the first Chinese technical standard on GSR. This paper presents the context positioning and development of a sustainable remediation assessment indicator set for China...
August 11, 2017: Science of the Total Environment
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