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https://www.readbyqxmd.com/read/28340522/tin-oxide-carbon-coated-sepiolite-nanofibers-with-enhanced-lithium-ion-storage-property
#1
Kai Hou, Xin Wen, Peng Yan, Aidong Tang, Huaming Yang
Natural sepiolite (Sep) nanofibers were coated with carbon and nanoscale SnO2 to prepare an emerging nanocomposite (SnO2-C@Sep), which exhibited enhanced electrochemical performance. Sepiolite could act as a steady skeleton, carbon coating principally led sepiolite from an isolated to an electric state, and decoration of nanoscale SnO2 was beneficial to the functionization of sepiolite. Cycling performances indicated that SnO2-C@Sep showed higher discharge capacities than commercial SnO2 after 50 cycles. The nanocomposite SnO2-C@Sep possessed enhanced lithium storage properties with stable capacity retention and low cost, which could open up a new strategy to synthesize a variety of functional hybrid materials based on the cheap and abundant clay and commercialization of lithium-metal oxide batteries...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28340464/a-review-on-various-electrochemical-techniques-for-heavy-metal-ions-detection-with-different-sensing-platforms
#2
REVIEW
BabanKumar Bansod, Tejinder Kumar, Ritula Thakur, Shakshi Rana, Inderbir Singh
Heavy metal ions are non-biodegradable and contaminate most of the natural resources occurring in the environment including water. Some of the heavy metals including Lead (Pb), Mercury (Hg), Arsenic (As), Chromium (Cr) and Cadmium (Cd) are considered to be highly toxic and hazardous to human health even at trace levels. This leads to the requirement of fast, accurate and reliable techniques for the detection of heavy metal ions. This review presents various electrochemical detection techniques for heavy metal ions those are user friendly, low cost, provides on-site and real time monitoring as compared to other spectroscopic and optical techniques...
March 18, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28340458/toxic-effects-of-environmental-pollutants-comparative-investigation-using-allium-cepa-l-and-lactuca-sativa-l
#3
Graciele Lurdes Silveira, Maria Gabriela Franco Lima, Gabriela Barreto Dos Reis, Marcel José Palmieri, Larissa Fonseca Andrade-Vieria
Studies that help understand the mechanisms of action of environmental pollutants are extremely important in environmental toxicology. In this context, assays using plants as models stand out for their simplicity and low performance cost. Among the plants used for this purpose, Allium cepa L. is the model most commonly applied for cytogenotoxic tests, while Lactuca sativa L., already widely used in phytotoxic investigations, has been gaining prominence in cytotoxic analyses. The present study aimed to compare the responses of A...
March 21, 2017: Chemosphere
https://www.readbyqxmd.com/read/28340452/a-study-of-photosynthetic-biogas-upgrading-based-on-a-high-rate-algal-pond-under-alkaline-conditions-influence-of-the-illumination-regime
#4
Mariana Franco-Morgado, Cynthia Alcántara, Adalberto Noyola, Raúl Muñoz, Armando González-Sánchez
Microalgal-bacterial processes have emerged as environmental friendly systems for the cost-effective treatment of anaerobic effluents such as biogas and nutrients-laden digestates. Environmental parameters such as temperature, irradiation, nutrient concentration and pH effect the performance of the systems. In this paper, the potential of a microalgal-bacterial photobioreactor operated under high pH (≈9.5) and high alkalinity to convert biogas into biomethane was evaluated. The influence of the illumination regime (continuous light supply vs 12h/12h light/dark cycles) on the synthetic biogas upgrading efficiency, biomass productivity and nutrient removal efficiency was assessed in a High-Rate Algal Pond interconnected to a biogas absorption bubble column...
March 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28340393/when-public-health-intervention-is-not-successful-cost-sharing-crowd-out-and-selection-in-korea-s-national-cancer-screening-program
#5
Hyuncheol Bryant Kim, Sun-Mi Lee
This study investigates the impact of and behavioral responses to cost sharing in Korea's National Cancer Screening Program, which provides free stomach and breast cancer screenings to those with an income below a certain cutoff. Free cancer screening substantially increases the screening take up rate, yielding more cancer detections. However, the increase in cancer detection is quickly crowded out by cancer detection through other channels such as diagnostic testing and private cancer screening. Further, compliers are much less likely to have cancer than never takers...
March 6, 2017: Journal of Health Economics
https://www.readbyqxmd.com/read/28340384/effects-of-waste-eggshells-and-sic-addition-on-specific-strength-and-thermal-expansion-of-hybrid-green-metal-matrix-composite
#6
Satpal Sharma, Shashi Prakash Dwivedi
Chicken eggshell waste is an industrial byproduct, and its disposal constitutes a serious environmental hazard. Chicken eggshell can be used in commercial products to produce new materials with low cost and density. Low density material which can sustain at higher temperature is a remarkable area of research. Keeping these facts in the mind, the present investigation aims to study the physical behaviour, specific strength and thermal expansion of AA2014/SiC/carbonized eggshell hybrid green metal matrix composites...
March 18, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28340326/effects-of-coupling-a-uf-membrane-with-a-mesh-screen-and-elevating-temperature-in-the-methanogenic-digester-of-a-two-phased-anaerobic-system
#7
Min Ho Kim, Chul-Hwi Park, Gee-Bong Han
This study was conducted to investigate coupling of UF with a mesh screen under thermophilic temperatures and compare the effectiveness of membrane filtration and temperature change in the methanogenic digester. A two-phased anaerobic digester coupled with an ultrafiltration (UF) membrane system was used for anaerobic sludge digestion. The overall average chemical oxygen demand (COD) removal efficiency achieved in the two-phased anaerobic digester coupled with the UF membrane system was 97.9 ± 0.8%. In the methanogenic digester, 10...
March 24, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28340317/opportunities-for-crash-and-injury-reduction-a-multi-harm-approach-for-crash-data-analysis
#8
Ann Mallory, Allison Kender, Kevin Moorhouse
OBJECTIVE: A multi-harm approach for analyzing crash and injury data was developed for the ultimate purpose of getting a richer picture of motor vehicle crash outcomes identifying research opportunities in crash safety. METHODS: Methods were illustrated using a retrospective analysis of 69,597 occupant cases from NASS CDS (National Automotive Sampling System Crashworthiness Data System) from 2005 to 2015. Occupant cases were analyzed by frequency and severity of outcome: fatality, injury by AIS (Abbreviated Injury Scale), number of cases, attributable fatality, disability, and injury costs...
March 24, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28340220/her2-neu-status-determination-in-breast-cancer-a-single-institutional-experience-using-a-dual-testing-approach-with-immunohistochemistry-and-fluorescence-in-situ-hybridization
#9
James P Solomon, Marie Dell'Aquila, Oluwole Fadare, Farnaz Hasteh
Objectives: According to current guidelines, either immunohistochemistry (IHC) or in situ hybridization (ISH) can be used to determine human epidermal growth factor receptor 2 (Her2/neu) status in breast carcinoma. While the guidelines explicitly delineate result interpretation, there is no consensus on the most appropriate testing algorithm. Methods: The Her2/neu statuses of 369 consecutive cases of invasive breast cancer (from 351 patients) were assessed in a dual-testing algorithm that uses both IHC and fluorescence ISH (FISH)...
March 11, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28340198/reasons-to-wait-or-to-treat-naive-patients-affected-by-chronic-hepatitis-c-with-low-fibrosis-stage-and-genotypes-2-or-3
#10
Lucio Boglione, Jessica Cusato, Giuseppe Cariti, Giovanni Di Perri, Antonio D'Avolio
New interferon (IFN)-free therapies are not currently available for all patients with chronic hepatitis C due to higher costs; in Italy, patients with genotype 2 (GT2) or GT3 without severe fibrosis can choose between wait or treatment with pegylated (PEG)-IFN and ribavirin. This study wants to examine the real rate of patients that accept or refused this therapy and the reasons related to decision. This prospective, observational analysis was performed at our centre between January 2014 and June 2015. Epidemiological, social and clinical data were collected in medical records; reasons for treatment acceptance/refusal were recorded through a questionnaire...
March 10, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28340160/safety-of-fluoroscopy-guided-transseptal-approach-for-ablation-of-left-sided-arrhythmias
#11
Zviad Matoshvili, Hamid Bastani, Tara Bourke, Frieder Braunschweig, Nikola Drca, Kristjan Gudmundsson, Per Insulander, Anette Jemtrén, Göran Kennebäck, Ott Saluveer, Jonas Schwieler, Jari Tapanainen, Christer Wredlert, Mats Jensen-Urstad
Aims: The transseptal approach is used for left atrial access during the ablation of atrial fibrillation (AF) and other left-sided arrhythmia substrates. Transseptal puncture (TP) is commonly performed with fluoroscopic guidance, contrast injection, and pressure monitoring. In many centres, additional techniques [intracardiac echocardiography (ICE), transoesophageal echocardiography (TEE), radiofrequency needle] are used to facilitate TP but its use adds costs. In this retrospective study, we studied the safety and complication rate when TP was routinely done with fluoroscopic guidance, contrast injection, and pressure monitoring using ICE or TEE only in selected cases...
March 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340128/crossing-the-health-it-chasm-considerations-and-policy-recommendations-to-overcome-current-challenges-and-enable-value-based-care
#12
Julia Adler-Milstein, Peter J Embi, Blackford Middleton, Indra Neil Sarkar, Jeff Smith
While great progress has been made in digitizing the US health care system, today's health information technology (IT) infrastructure remains largely a collection of systems that are not designed to support a transition to value-based care. In addition, the pursuit of value-based care, in which we deliver better care with better outcomes at lower cost, places new demands on the health care system that our IT infrastructure needs to be able to support. Provider organizations pursuing new models of health care delivery and payment are finding that their electronic systems lack the capabilities needed to succeed...
March 15, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28340013/implications-of-thoracic-epidural-analgesia-on-hospital-charges-in-rib-fracture-patients
#13
Courtney D Jensen, Jamie T Stark, Lewis E Jacobson, Jan M Powers, Kathy L Leslie, Jeffrey M Kinsella-Shaw, Michael F Joseph, Craig R Denegar
Objective.:  Rib fractures are present in more than 150,000 patients admitted to US trauma centers each year. Those who fracture two or more ribs are typically treated with oral analgesic drugs and are discharged with few complications. The cost of this care generally reflects its brevity. When a patient fractures three or more ribs, there is an elevated risk of complication. In response, treatments are often broadened and their durations prolonged; this affects cost. While health, function, and survival have been widely explored, patient billing has not...
March 7, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28340009/designing-an-optimal-screening-program-for-unknown-atrial-fibrillation-a-cost-effectiveness-analysis
#14
Mattias Aronsson, Emma Svennberg, Mårten Rosenqvist, Johan Engdahl, Faris Al-Khalili, Leif Friberg, Viveka Frykman, Lars-Åke Levin
Aims: The primary objective of this study was to use computer simulations to suggest an optimal age for initiation of screening for unknown atrial fibrillation and to evaluate if repeated screening will add value. Methods and results: In the absence of relevant clinical studies, this analysis was based on a simulation model. More than two billion different designs of screening programs for unknown atrial fibrillation were simulated and analysed. Data from the published scientific literature and registries were used to construct the model and estimate lifelong effects and costs...
March 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339972/factors-associated-with-sickness-absence-among-employees-with-chronic-conditions
#15
L Meng, K T Robinson, M L Smith
Background: The growing prevalence of chronic conditions in the ageing workforce has been shown to have a negative impact in terms of optimal work performance and quality of life. It is therefore important to understand the factors associated with sickness absence due to health problems. Aims: To examine the socio-demographics, health status indicators, barriers to self-care and social support associated with working adults missing work because of chronic conditions...
March 8, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/28339966/operational-challenges-and-opportunities-in-pastured-poultry-operations-in-the-united-states
#16
C Elkhoraibi, M Pitesky, N Dailey, D Niemeier
As pastured poultry production has gained increased popularity in the United States in recent years, there is a growing need for research and outreach efforts aimed at this sector of poultry production. In order to get familiarized with American pastured poultry producers, we conducted an online questionnaire aimed primarily at evaluating what operational challenges are faced by producers and what educational opportunities should be initiated by researchers. Results showed that pastured poultry farms largely vary in total number of acres farmed and total number of birds kept...
March 3, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339948/effects-of-dietary-coarsely-ground-corn-and-3-bedding-floor-types-on-broiler-live-performance-litter-characteristics-gizzard-and-proventriculus-weight-and-nutrient-digestibility
#17
Y Xu, Y M Lin, C R Stark, P R Ferket, C M Williams, J Brake
The effects of zero or 50% dietary coarsely ground corn (CC) in pelleted and screened grower and finisher diets on broilers reared on 3 bedding floor types (plastic net [NET], new pine wood shavings litter [NEW], or old pine wood shavings litter [OLD]) on broiler live performance, litter characteristics, gizzard and proventriculus weight, and apparent ileal digestibility (AID) were studied in a 2 × 3 factorial arrangement of treatments. Fine corn was produced with a hammermill (271 μm) and CC with a roller mill (1145 μm)...
March 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339876/straight-run-vs-sex-separate-rearing-for-two-broiler-genetic-lines-part-2-economic-analysis-and-processing-advantages
#18
M J Da Costa, G Colson, T J Frost, J Halley, G M Pesti
The objective of this analysis was to evaluate the effects of raising broilers under sex separate and straight-run conditions for 2 broiler genetic lines. One-day-old Ross 308 and Ross 708 chicks (n = 1,344) were sex separated and placed in 48 pens according to rearing type: sex separate (28 males or 28 females) or straight-run (14 males + 14 females). There were 3 dietary phases: starter (zero to 17 d), grower (17 to 32 d), and finisher (32 to 48 d). Bird individual BW and group feed intakes were measured at 12, 17, 25, 32, 42, and 48 d to evaluate performance...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339843/availability-and-cost-of-extracorporeal-treatments-for-poisonings-and-other-emergency-indications-a-worldwide-survey
#19
Josée Bouchard, Valery Lavergne, Darren M Roberts, Monique Cormier, Genevieve Morissette, Marc Ghannoum
Background: Extracorporeal treatments (ECTRs) are used for different conditions, including replacement of organ function and poisoning. Current recommendations for ECTRs in various poisonings suggest that intermittent haemodialysis (IHD) is the most efficient technique. However, the practicality of these recommendations is poorly defined in view of limited information on availability and cost worldwide. Methods: A survey invitation to an Internet-based questionnaire was emailed between January 2014 and March 2015 to members of international societies to determine the availability, time to initiation and cost of ECTRs (including filters, dialysate, catheter, anticoagulant and nursing/physician salary)...
February 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339692/decrease-in-unnecessary-vitamin-d-testing-using-clinical-decision-support-tools-making-it-harder-to-do-the-wrong-thing
#20
Andrew H Felcher, Rachel Gold, David M Mosen, Ashley B Stoneburner
Objective: To evaluate the impact of clinical decision support (CDS) tools on rates of vitamin D testing. Screening for vitamin D deficiency has increased in recent years, spurred by studies suggesting vitamin D's clinical benefits. Such screening, however, is often unsupported by evidence and can incur unnecessary costs. Materials and Methods: We evaluated how rates of vitamin D screening changed after we implemented 3 CDS tools in the electronic health record (EHR) of a large health plan: (1) a new vitamin D screening guideline, (2) an alert that requires clinician acknowledgement of current guidelines to continue ordering the test (a "hard stop"), and (3) a modification of laboratory ordering preference lists that eliminates shortcuts...
February 19, 2017: Journal of the American Medical Informatics Association: JAMIA
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