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https://www.readbyqxmd.com/read/28437997/effect-of-zno-nanostructures-on-the-optical-properties-of-white-light-emitting-diodes
#1
Longshi Rao, Yong Tang, ZongTao Li, Xinrui Ding, Jiasheng Li, Shudong Yu, Caiman Yan, Hangaung Lu
White light produced by blue LEDs with yellow phosphor is the most widely used methods, but it results in poor quality in angular CCT uniformity. In this work, a novel technique was introduced to solve this problem by integrating different ZnO nanostructures into white light-emitting diodes. The experiment of ZnO doped films and the simulation of Finite-Difference Time-Domain (FDTD) were carried out. The result indicated scattering effect of ZnO nanoparticles could improve uniformity of scattering energy effectively...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437932/electrifying-catheters-with-light
#2
Martin Pekař, Jeannet van Rens, Martin B van der Mark
Smart minimally invasive devices face a connectivity challenge. An example is found in intracardiac echocardiography where the signal transmission and supply of power at the distal end require many thin and fragile wires in order to keep the catheter slim and flexible. We have built a fully functional bench-top prototype to demonstrate that electrical wires may be replaced by optical fibers. The prototype is immediately scalable to catheter dimensions. The absence of conductors will provide intrinsic galvanic isolation as well as radio frequency (RF) and magnetic resonance imaging (MRI) compatibility...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437915/rapid-thermal-annealing-treated-spin-on-doped-antireflective-radial-junction-si-nanopillar-solar-cell
#3
Bikash Dev Choudhury, Srinivasan Anand
Radial junction nanopillar Si solar cells are interesting for cost effective efficiency improvement. Here, we address a convenient top-down fabrication of Si nanopillar solar cells using spin-on doping and rapid thermal annealing (RTA) for conformal PN junction formation. Broadband suppressed reflection as low as an average of 5% in the 300-1100 nm wavelength range and un-optimized cell efficiency of 7.3% are achieved. The solar cell performance can be improved by optimization of spin-on-doping and suitable surface passivation...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437795/effect-of-using-the-heart-score-in-patients-with-chest-pain-in-the-emergency-department-a-stepped-wedge-cluster-randomized-trial
#4
Judith M Poldervaart, Johannes B Reitsma, Barbra E Backus, Hendrik Koffijberg, Rolf F Veldkamp, Monique E Ten Haaf, Yolande Appelman, Herman F J Mannaerts, Jan-Melle van Dantzig, Madelon van den Heuvel, Mohamed El Farissi, Bernard J W M Rensing, Nicolette M S K J Ernst, Ineke M C Dekker, Frank R den Hartog, Thomas Oosterhof, Ghizelda R Lagerweij, Eugene M Buijs, Maarten W J van Hessen, Marcel A J Landman, Roland R J van Kimmenade, Luc Cozijnsen, Jeroen J J Bucx, Clara E E van Ofwegen-Hanekamp, Maarten-Jan Cramer, A Jacob Six, Pieter A Doevendans, Arno W Hoes
Background: The HEART (History, Electrocardiogram, Age, Risk factors, and initial Troponin) score is an easy-to-apply instrument to stratify patients with chest pain according to their short-term risk for major adverse cardiac events (MACEs), but its effect on daily practice is unknown. Objective: To measure the effect of use of the HEART score on patient outcomes and use of health care resources. Design: Stepped-wedge, cluster randomized trial...
April 25, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28437777/testing-decontaminated-sediments-as-a-substrate-for-ornamentals-in-field-nursery-plantations
#5
Francesca Ugolini, Costanza Calzolari, Giuseppe Mario Lanini, Luciano Massetti, Stefania Pollaki, Antonio Raschi, Francesco Sabatini, Giacomo Tagliaferri, Fabrizio Ungaro, Daniele Massa, Maurizio Antonetti, Carlos Garcia Izquierdo, Cristina Macci, Grazia Masciandaro
When canals and harbours are dredged, huge amount of polluted sediments has to be stocked and transported to the landfill with incredibly high costs of management. Among the remediation techniques for the reclamation of polluted sediments and soils, phytoremediation represents a sustainable and effective technique though still not fully promoted or commercialized. In this study we have tested the suitability for plant nursing of a substrate resulting from sediments dredged from a canal and treated with phytoremediation...
April 21, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28437749/epilepsy-awareness-and-emergency-rescue-training-ignorance-is-bliss
#6
Rohit Shankar, Caryn Jory, Brendan McLean, Phil Tittensor, Matthew Walker
Status epilepticus (SE) has a high mortality rate and is associated with complications such as neurological deficit and cognitive decline. Buccal midazolam is the recommended emergency rescue medication in the UK to reduce the duration of a seizure and SE. It should be administered by an appropriately trained person. There are agreed guidelines on training standards for its administration in the UK produced by the Joint Epilepsy Council of the United Kingdom and Ireland. Training should provide an overview of epilepsy to facilitate safe, person-centered care and appropriate administration of rescue medication to people with epilepsy (PWE)...
April 19, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28437699/structure-and-dynamics-of-cetyltrimethylammonium-chloride-sodium-dodecylsulfate-ctac-sds-catanionic-vesicles-high-value-nano-vehicles-from-low-cost-surfactants
#7
Irene Russo Krauss, Riccardo Imperatore, Augusta De Santis, Alessandra Luchini, Luigi Paduano, Gerardino D'Errico
HYPOTHESIS: Catanionic vesicles based on large-scale produced surfactants represent a promising platform for the design of innovative, effective and relatively inexpensive nano-vehicles for a variety of actives. Structural, dynamic and functional behavior of these aggregates is finely tuned by the molecular features of their components and can be opportunely tailored for their applications as drug carriers. EXPERIMENTS: Here we investigate the aggregates formed by CTAC and SDS, two of the most diffused surfactants, by means of Dynamic Light Scattering, Small Angle Neutron Scattering and Electron Paramagnetic Resonance spectroscopy (EPR)...
April 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28437647/comparison-of-landfarming-amendments-to-improve-bioremediation-of-petroleum-hydrocarbons-in-niger-delta-soils
#8
David M Brown, Samson Okoro, Juami van Gils, Rob van Spanning, Matthijs Bonte, Tony Hutchings, Olof Linden, Uzoamaka Egbuche, Kim Bye Bruun, Jonathan W N Smith
Large scale landfarming experiments, using an extensive range of treatments, were conducted in the Niger-Delta, Nigeria to study the degradation of oil in contaminated soils. In this work the effect of nutrient addition, biosurfactant, Eisenia fetida (earthworm) enzyme extract, bulking and sorption agents and soil neutralization were tested. It was found that these treatments were successful in removing up to 53% of the total petroleum hydrocarbon in the soil within 16 weeks. A comparison between treatments demonstrated that most were no more effective than agricultural fertilizer addition alone...
April 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28437620/american-association-of-clinical-endocrinologists-and-american-college-of-endocrinology-guidelines-for-management-of-dyslipidemia-and-prevention-of-cardiovascular-disease
#9
Paul S Jellinger, Yehuda Handelsman, Paul D Rosenblit, Zachary T Bloomgarden, Vivian A Fonseca, Alan J Garber, George Grunberger, Chris K Guerin, David S H Bell, Jeffrey I Mechanick, Rachel Pessah-Pollack, Kathleen Wyne, Donald Smith, Eliot A Brinton, Sergio Fazio, Michael Davidson
OBJECTIVE: The development of these guidelines is mandated by the American Association of Clinical Endocrinologists (AACE) Board of Directors and American College of Endocrinology (ACE) Board of Trustees and adheres with published AACE protocols for the standardized production of clinical practice guidelines (CPGs). METHODS: Recommendations are based on diligent reviews of the clinical evidence with transparent incorporation of subjective factors, according to established AACE/ACE guidelines for guidelines protocols...
April 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28437610/long-acting-release-formulation-of-exendin-4-based-on-biomimetic-mineralization-for-type-2-diabetes-therapy
#10
Wei Chen, Guohao Wang, Bryant C Yung, Gang Liu, Zhiyong Qian, Xiaoyuan Chen
Exendin-4 has been clinically exploited for treating type 2 diabetes, but the short circulation half-life and multiple daily injections limit its widespread application with respect to poor patient compliance, low efficacy, and high treatment cost. In this study, a potent long-acting release system based on biomimetic mineralization was constructed for biocompatible and sustained exendin-4 delivery. Similar to natural biomineralization, exendin-4 can be mineralized to form nano-sized mineral solids by means of the reaction between acidic amino acid residues and calcium ions in a supersaturated environment with negligible influence on peptide bioactivity...
April 24, 2017: ACS Nano
https://www.readbyqxmd.com/read/28437607/the-real-cost-of-speed-the-effect-of-a-time-saving-multiple-time-stepping-algorithm-on-the-accuracy-of-molecular-dynamics-simulations
#11
Sabine Reisser, David Poger, Martin Stroet, Alan Edward Mark
To enhance efficiency in molecular dynamics simulations, forces that vary slowly are often evaluated less often than those that vary rapidly. We show that the multiple-time-step algorithm implemented in recent versions of GROMACS results in significant differences in the collective properties of a system under conditions where the system was previously stable. The implications of changing the simulation algorithm without assessment of potential artifacts on the parameterisation and transferability of effective force fields are discussed...
April 24, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28437556/inheritance-of-bacterial-spot-resistance-in-capsicum-annuum-var-annuum
#12
L R A Silva, R Rodrigues, S Pimenta, J W S Correa, M S B Araújo, C S Bento, C P Sudré
Since 2008, Brazil is the largest consumer of agrochemicals, which increases production costs and risks of agricultural products, environment, and farmers' contamination. Sweet pepper, which is one of the main consumed vegetables in the country, is on top of the list of the most sprayed crops. The bacterial spot, caused by Xanthomonas spp, is one of the most damaging diseases of pepper crops. Genetic resistant consists of a suitable way of disease control, but development of durable resistant cultivars as well as understanding of plant-bacterium interaction is being a challenge for plant breeders and pathologists worldwide...
April 20, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28437385/before-or-after-transplantation-a-review-of-the-cost-effectiveness-of-treating-waitlisted-patients-with-hepatitis-c
#13
Elliot B Tapper, Nezam H Afdhal, Michael P Curry
All patients with chronic hepatitis C virus (HCV) infections can and should be treated. Though highly effective direct-acting antiviral therapies are costly, the price of a cure is a 1-time investment that is outweighed by future benefits. For clinicians caring for patients requiring liver transplant, the key question relates to the timing of treatment: before or after liver transplantation? On 1 hand, treating HCV often improves our patients' model for end-stage liver disease (MELD) score, decreasing costs, and potentially improving longevity by reducing our patients' risk of death and transplantation...
May 2017: Transplantation
https://www.readbyqxmd.com/read/28437334/a-new-fixation-technique-for-french-door-cervical-laminoplasty-surgical-results-with-a-minimum-follow-up-of-6-years
#14
Nanjundappa S Harshavardhana, Harshad V Dabke, Hossein Mehdian
DESIGN: A case series of 5 patients with multilevel cervical myelopathy treated by French-door cervical laminoplasty (FDCL) and use of unicortical iliac crest graft as spacer fixed with titanium miniplates and screws is described. OBJECTIVE: To report a minimum of 6-year follow-up results of our new plate-screw fixation technique for FDCL. SUMMARY OF BACKGROUND DATA: Hardware-assisted laminoplasty has the potential advantage of preventing restenosis by holding the laminar door "open" while healing progresses and also prevents spacer dislodgement...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28437321/medical-expenditures-associated-with-diabetes-among-youth-with-medicaid-coverage
#15
Sundar S Shrestha, Ping Zhang, Theodore J Thompson, Edward W Gregg, Ann Albright, Giuseppina Imperatore
BACKGROUND: Information on diabetes-related excess medical expenditures for youth is important to understand the magnitude of financial burden and to plan the health care resources needed for managing diabetes. However, diabetes-related excess medical expenditures for youth covered by Medicaid program have not been investigated recently. OBJECTIVE: To estimate excess diabetes-related medical expenditures among youth aged below 20 years enrolled in Medicaid programs in the United States...
April 21, 2017: Medical Care
https://www.readbyqxmd.com/read/28437195/home-health-chains-and-practice-patterns-evidence-of-2008-medicare-reimbursement-revision
#16
Sean Shenghsiu Huang, Hyunjee Kim
Home health agencies (HHAs) are known to exploit the Medicare reimbursement schedule by targeting a specific number of therapy visits. These targeting behaviors cause unnecessary medical spending. The Centers for Medicare & Medicaid Services estimates that during fiscal year 2015, Medicare made more than $10 billion in improper payments to HHAs. Better understanding of heterogeneous gaming behaviors among HHAs can inform policy makers to more effectively oversee the home health care industry. This article aims to study how home health chains adjust and adopt new targeting behaviors as compared to independent agencies under the new reimbursement schedule...
February 23, 2017: Population Health Management
https://www.readbyqxmd.com/read/28437174/more-than-fever-thermoregulatory-responses-to-immunological-stimulation-and-consequences-of-thermoregulatory-strategy-on-innate-immunity-in-gopher-tortoises-gopherus-polyphemus
#17
Jeffrey M Goessling, Craig Guyer, Mary T Mendonça
Organisms possess a range of thermoregulatory strategies that may vary in response to sickness, thereby driving important life-history consequences. Because the immune system is vital to maintaining organism function, understanding the suite of immune responses to infection indicates basic costs and benefits of physiological strategies. Here, we assessed consequences of thermoregulation and seasonality on immune function in both immunologically stimulated and nonstimulated gopher tortoises (Gopherus polyphemus)...
July 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28437151/importance-of-costs-and-cost-effectiveness-of-palliative-care
#18
Kathleen Bickel, Elissa Ozanne
No abstract text is available yet for this article.
April 24, 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/28437147/comparison-of-two-types-of-meditation-on-patients-psychosocial-responses-during-radiation-therapy-for-head-and-neck-cancer
#19
Gisela Boxleitner, Shelley Jolie, Dana Shaffer, Nicholas Pasacreta, Mei Bai, Ruth McCorkle
OBJECTIVES: Radiation treatment for head and neck cancer introduces adaptive demands and subjects patients to significant and unique psychosocial challenges. There is growing evidence that meditation is useful in lessening anxiety and depression in cancer patients. This study compared the effects of two types of meditation training on the psychological responses of patients with head and neck cancer during radiation therapy. DESIGN: Randomized clinical trial. SETTING: Smilow Cancer Hospital at Yale New Haven...
February 17, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28437115/development-and-implementation-of-advanced-fitting-methods-for-the-calculation-of-accurate-molecular-structures
#20
Marco Mendolicchio, Emanuele Penocchio, Daniele Licari, Nicola Tasinato, Vincenzo Barone
The determination of accurate equilibrium molecular structures plays a fundamental role for understanding many physical-chemical properties of molecules, ranging from the precise evaluation of the electronic structure to the analysis of dynamical and environmental effects in tuning their overall behavior. For this purpose the so-called semi-experimental approach, based on a non-linear least-squares fit of the moments of inertia associated to a set of available isotopologues, allows one to obtain very accurate results, without the unfavorable computational cost characterizing high-level quantum chemical methods...
April 24, 2017: Journal of Chemical Theory and Computation
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