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Benjamin Rose-Davis, Elizabeth Stringer, Samina Abidi, Syed Sibte Raza Abidi
Families of children with Juvenile Idiopathic Arthritis need a way to interact with Patient Education Materials (PEM) so that learning occurs at their own pace, on topics that are relevant to them. This paper proposes a novel, dialogue-based approach to address these needs. Using an extended version of Toulmin's model of argument as a theory-based classification method, we digitized paper-based PEM to render an interactive dialogue. The dialogue allows the user to explore a topic with respect to their interests and apprehensions as opposed to providing a static, generic document...
2018: Studies in Health Technology and Informatics
Cullen M Dutmer, Allison M Schiltz, Kristy L Freeman, Matthew J Christie, Juana A Cerna, Seung-Hyun Cho, Ryan T Chartier, Jonathan W Thornburg, Katharine L Hamlington, James L Crooks, Tasha E Fingerlin, David A Schwartz, Andrew H Liu
RATIONALE: Home dampness and mold are associated with asthma severity and exacerbations, but little is known about the nature of these exposures in at-risk children. OBJECTIVES: To test the hypothesis that observed dampness, water damage, and mold in the home are associated with higher exposure to particulate matter less than 10 μm in diameter in a cohort of at-risk children with asthma. METHODS: We performed a pilot study in 8- to 16-year-old children with exacerbation-prone asthma (n = 29; Denver Asthma Panel Study)...
April 2018: Annals of the American Thoracic Society
Niall Kirkaldy, Greig Chisholm, Jia-Jia Chen, Leroy Cronin
Hydrogen is seen as a sustainable fuel of the future, yet the vast majority of global hydrogen production comes from the reformation of fossil fuels. Electrolytic water splitting using proton exchange membrane electrolysers (PEMEs) provides a pathway to sustainable hydrogen production through coupling to renewable energy sources, but can suffer from gas crossover at low current densities and high operating pressures, causing explosive gas mixtures and decreasing cell lifetimes. Here we demonstrate the application of a highly stable, organic electron-coupled proton buffer (ECPB) which allows the decoupling of hydrogen and oxygen production during water splitting...
February 14, 2018: Chemical Science
Tanfeng Cao, Robert L Russell, Thomas D Durbin, David R Cocker, Andrew Burnette, Joseph Calavita, Hector Maldonado, Kent C Johnson
Hybrid engine technology is a potentially important strategy for reduction of tailpipe greenhouse gas (GHG) emissions and other pollutants that is now being implemented for off-road construction equipment. The goal of this study was to evaluate the emissions and fuel consumption impacts of electric-hybrid excavators using a Portable Emissions Measurement System (PEMS)-based methodology. In this study, three hybrid and four conventional excavators were studied for both real world activity patterns and tailpipe emissions...
April 13, 2018: Science of the Total Environment
Pengzhan Sun, Renzhi Ma, Takayoshi Sasaki
Ion conducting membranes/electrolytes have been employed extensively in some important industrial and biological systems, especially in fuel cells, water electrolyzers, gas separation, sensors and biological selective ion transport, acting as one of the core components and sometimes directly determining the device performance. However, the traditional polymeric proton exchange membranes (PEMs)/anion exchange membranes (AEMs) suffer from highly toxic preparation procedures, poor thermal and chemical stabilities, and unsatisfactory ion conductivities...
January 7, 2018: Chemical Science
Mohammadhasan Hedayati, Matt J Kipper
Blood vessels present a dense, non-uniform, polysaccharide-rich layer, called the endothelial glycocalyx. The polysaccharides in the glycocalyx include polyanionic glycosaminoglycans (GAGs). This polysaccharide-rich surface has excellent and unique blood compatibility. We report new methods for preparing and characterizing dense GAG surfaces that can serve as models of the vascular endothelial glycocalyx. The GAG-rich surfaces are prepared by adsorbing heparin or chondroitin sulfate-containing polyelectrolyte complex nanoparticles (PCNs) to chitosan-hyaluronan polyelectrolyte multilayers (PEMs)...
June 15, 2018: Carbohydrate Polymers
Hao Wu, Yu Fu, Chunyu Guo, Yanbo Li, Nanzhe Jiang, Chengri Yin
The microbial fuel cell (MFC) has emerged as a promising technology for wastewater treatment and energy recovery, but the expensive cost of proton exchange membranes (PEMs) is a problem that need to be solved. In this study, a two-chamber MFC based on our self-made PEM sulfonated poly (ether ether ketone) membrane was set up to treat phenol/acetone wastewater and synchronously generate power. The maximum output voltage was 240-250 mV. Using phenol and acetone as substrates, the power generation time in an operation cycle was 289 h...
April 3, 2018: Bioresource Technology
Deepa Narayanan, Wendie A Berg
The goals of this article are to discuss the role of breast-specific PET imaging of women with breast cancer, compare the clinical performance of positron emission mammography (PEM) and MR imaging for current indications, and provide recommendations for when women should undergo PEM instead of breast MR imaging.
May 2018: Magnetic Resonance Imaging Clinics of North America
Juhi Bagaitkar, Jing Huang, Melody Yue Zeng, Nancy K Pech, Darlene A Monlish, Lizet J Perez-Zapata, Irina Miralda, Laura G Schuettpelz, Mary C Dinauer
The phagocyte NADPH oxidase generates superoxide, the precursor to reactive oxygen species (ROS) that have both antimicrobial and immunoregulatory functions. Inactivating mutations in NADPH oxidase alleles cause chronic granulomatous disease (CGD), characterized by enhanced susceptibility to life-threatening microbial infections and inflammatory disorders, and hypomorphic NADPH oxidase alleles are associated with autoimmunity. Impaired apoptotic cell (AC) clearance is implicated as an important contributing factor in chronic inflammation and autoimmunity, but the role of NADPH oxidase-derived ROS in this process is incompletely understood...
April 4, 2018: Blood
Ning Cao, Chaofan Zhou, Yong Wang, Hong Ju, Dongyang Tan, Jin Li
As a clean energy utilization device, full cell is gaining more and more attention. Proton exchange membrane (PEM) is a key component of the full cell. The commercial-sulfonated, tetrafluoroethylene-based fluoropolymer-copolymer (Nafion) membrane exhibits excellent proton conductivity under a fully humidified environment. However, it also has some disadvantages in practice, such as high fuel permeability, a complex synthesis process, and high cost. To overcome these disadvantages, a low-cost and novel membrane was developed...
March 28, 2018: Materials
Mary A Khetani, Beth M McManus, Kristen Arestad, Zachary Richardson, Renee Charlifue-Smith, Cordelia Rosenberg, Briana Rigau
Background: Electronic patient-reported outcomes (e-PROs) may provide valid and feasible options for obtaining family input on their child's functioning for care planning and outcome monitoring, but they have not been adopted into early intervention (EI). The purpose of this pilot study was to evaluate the feasibility of implementing technology-based functional assessment into EI practice and to examine child, family, service, and environmental correlates of caregiver-reported child functioning in the home...
2018: Pilot and Feasibility Studies
Wen Peng, Elliot M Berry
OBJECTIVES: Following its publication in 2008, the Global Nutritional Index (GNI) which captures the triple burden of malnutrition, has been updated to assess the overall nutritional status and nutritional trends of countries, regions and the world, including both under-nutrition and over-nutrition. METHODS: The GNI was modeled on the Human Development Index, using geometric means of three normalized indicators: protein-energy malnutrition (PEM, measured by Disability-Adjusted Life Years (DALYs) from PEM), micronutrient deficiency (MID, measured by DALYs from MID), and penalizing obesity (percent female obesity)...
2018: PloS One
Akihiro Tamiya, Masahiro Morimoto, Shoichi Fukuda, Yoko Naoki, Tatsuya Ibe, Kyoichi Okishio, Hideto Goto, Akihiro Yoshii, Toshiyuki Kita, Naoyuki Nogami, Yuka Fujita, Shinji Atagi
Background Radiotherapy (RT) is an effective treatment for elderly patients with locally advanced non-small-cell lung cancer (NSCLC); however, no clinical trials have investigated combination RT with pemetrexed (PEM) in chemotherapy-naive patients ≥71 years old. We conducted a phase I/II study to evaluate the appropriate PEM dose, efficacy, and safety of PEM plus RT in elderly patients. Methods Patients ≥71 years with performance status (PS) scores of 0-2 who had pathologically confirmed stage IIIA/IIIB NSCLC received PEM (500 mg/m2 on day 1 of a 28-day cycle, 4 courses) and RT (a single 2 Gy daily fraction on 5 consecutive days weekly from day 1; 60 Gy total)...
March 23, 2018: Investigational New Drugs
Bo Yang, K Max Zhang, Wei Xu, Shaojun Zhang, Stuart A Batterman, Richard Baldauf, Parikshit Deshmukh, Richard Snow, Ye Wu, Qiang Zhang, Zhenhua Li, Xian Wu
Nitrogen dioxide (NO2) not only is linked with adverse effects on the respiratory system, but also contributes to the formation of ground-level ozone (O3) and fine particulate matter (PM2.5). Our curbside monitoring data analysis in Detroit, MI and Atlanta, GA strongly suggests that a large fraction of NO2 is produced during the "tailpipe-to-road" stage. To substantiate this finding, we designed and carried out a field campaign to measure the same exhaust plumes at the tailpipe-level by a Portable Emissions Measurement System (PEMS) and at the on-road level by an Electric Vehicle-based mobile platform...
March 22, 2018: Environmental Science & Technology
Raghavendra S Hebbar, Arun M Isloor, Balakrishna Prabhu, Inamuddin, Abdullah M Asiri, A F Ismail
Functional surfaces and polymers with branched structures have a major impact on physicochemical properties and performance of membrane materials. With the aim of greener approach for enhancement of permeation, fouling resistance and detrimental heavy metal ion rejection capacity of polyetherimide membrane, novel grafting of poly (4-styrenesulfonate) brushes on low cost, natural bentonite was carried out via distillation-precipitation polymerisation method and employed as a performance modifier. It has been demonstrated that, modified bentonite clay exhibited significant improvement in the hydrophilicity, porosity, and water uptake capacity with 3 wt...
March 16, 2018: Scientific Reports
Chi-Yuan Lee, Shih-Chun Li, Chia-Hung Chen, Yen-Ting Huang, Yu-Syuan Wang
Looking for alternative energy sources has been an inevitable trend since the oil crisis, and close attentioned has been paid to hydrogen energy. The proton exchange membrane (PEM) water electrolyzer is characterized by high energy efficiency, high yield, simple system and low operating temperature. The electrolyzer generates hydrogen from water free of any carbon sources (provided the electrons come from renewable sources such as solar and wind), so it is very clean and completely satisfies the environmental requirement...
March 15, 2018: Sensors
Vanessa A Thomas, Heather L Crouse, Kristy O Murray, Deborah C Hsu, Elizabeth A Camp, Andrea T Cruz
OBJECTIVE: The aim of this study was to perform a needs assessment of pediatric (PEM) and general emergency medicine (EM) provider knowledge, comfort, and current practice patterns in the evaluation of pediatric tropical infectious diseases. METHODS: An online survey was developed based on educational priorities identified by an expert panel via modified Delphi methodology. The survey included assessment of providers' typical evaluation, diagnosis, and treatment of tropical diseases and was distributed to PEM and EM providers in 2 large professional organizations...
March 12, 2018: Pediatric Emergency Care
Ahmad Khobrani, Nirali H Patel, Richard L George, Neil L McNinch, Rami A Ahmed
Trauma is a leading cause of morbidity and mortality in infants and children worldwide. Trauma education is one of the most commonly reported deficiencies in pediatric emergency medicine (PEM) training. In this study, we describe the creation of a pediatric trauma boot camp in which trainees' basic knowledge, level of confidence, teamwork, and communication skills are assessed. The primary goal of this pilot study was to create a simulation-based pediatric trauma curriculum for PEM fellows and emergency medicine residents utilizing Kern's curricular conceptual framework...
2018: Emergency Medicine International
Alexander Neergaard Olesen, Matteo Cesari, Julie Anja Engelhard Christensen, Helge Bjarup Dissing Sorensen, Emmanuel Mignot, Poul Jennum
OBJECTIVE: To evaluate rapid eye movement (REM) muscular activity in narcolepsy by applying five algorithms to electromyogram (EMG) recordings, and to investigate its value for narcolepsy diagnosis. PATIENTS/METHODS: A modified version of phasic EMG metric (mPEM), muscle activity index (MAI), REM atonia index (RAI), supra-threshold REM EMG activity metric (STREAM), and Frandsen method (FR) were calculated from polysomnography recordings of 20 healthy controls, 18 clinic controls (subjects suspected with narcolepsy but finally diagnosed without any sleep abnormality), 16 narcolepsy type one without REM sleep behavior disorder (RBD), nine narcolepsy type one with RBD, and 18 narcolepsy type two...
April 2018: Sleep Medicine
Linda M Hengeveld, Hanneke A H Wijnhoven, Margreet R Olthof, Ingeborg A Brouwer, Tamara B Harris, Stephen B Kritchevsky, Anne B Newman, Marjolein Visser
Background: Protein-energy malnutrition (PEM) is a major problem in older adults. Whether poor diet quality is an indicator for the long-term development of PEM is unknown. Objective: The aim was to determine whether poor diet quality is associated with the incidence of PEM in community-dwelling older adults. Design: We used data on 2234 US community-dwelling older adults aged 70-79 y of the Health, Aging, and Body Composition (Health ABC) Study...
February 1, 2018: American Journal of Clinical Nutrition
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