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https://www.readbyqxmd.com/read/28437769/contamination-study-of-forest-track-soils-located-in-a-recreational-area-and-filled-with-steel-industry-waste-30years-ago
#1
Leticia Gómez-Nubla, Julene Aramendia, Silvia Fdez-Ortiz de Vallejuelo, Juan Manuel Madariaga
The reuse of waste is increasingly widespread in order to avoid the exploitation of natural resources and to reduce costs. An example of that reuse is the employment of steel slag, a by-product from the steel making process. When the steel is produced through an electric arc furnace (EAF), two types of slag are generated: black and white slag. One application rarely used for this waste is as filler in forest tracks. In this work, two forest tracks of the Basque Country (northern Spain) filled with black and white slag 19 and 35years ago, respectively, have been studied...
April 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28437750/becoming-comfortable-with-my-epilepsy-strategies-that-patients-use-in-the-journey-from-diagnosis-to-acceptance-and-disclosure
#2
Sinead Pembroke, Agnes Higgins, Niall Pender, Naomi Elliott
OBJECTIVE: Proponents of resilience theory have highlighted the importance of understanding the processes of resilience. The objective of the study was to explore how people with epilepsy reach a stage of being comfortable with their epilepsy. Identifying the processes used is important to developing effective self-management for people who are newly diagnosed with epilepsy. METHOD: A grounded theory approach involving forty-nine consenting adult people with epilepsy (18 years and over), was used to explore their first-hand experiences of coming to terms with their epilepsy...
April 19, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28437715/parameterization-of-nmr-relaxation-curves-in-terms-of-logarithmic-moments-of-the-relaxation-time-distribution
#3
Oleg V Petrov, Siegfried Stapf
This work addresses the problem of a compact and easily comparable representation of multi-exponential relaxation data. It is often convenient to describe such data in a few parameters, all being of physical significance and easy to interpret, and in such a way that enables a model-free comparison between different groups of samples. Logarithmic moments (LMs) of the relaxation time constitute a set of parameters which are related to the characteristic relaxation time on the log-scale, the width and the asymmetry of an underlying distribution of exponentials...
April 13, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28437475/the-school-malaise-trap-program-coupling-educational-outreach-with-scientific-discovery
#4
Dirk Steinke, Vanessa Breton, Emily Berzitis, Paul D N Hebert
The School Malaise Trap Program (SMTP) provides a technologically sophisticated and scientifically relevant educational experience that exposes students to the diversity of life, enhancing their understanding of biodiversity while promoting environmental stewardship. Since 2013, the SMTP has allowed 15,000 students at 350 primary and secondary schools to explore insect diversity in Canadian schoolyards. Students at each school collected hundreds of insects for an analysis of DNA sequence variation that enabled their rapid identification to a species...
April 2017: PLoS Biology
https://www.readbyqxmd.com/read/28437462/correction-virtual-hand-feedback-reduces-reaction-time-in-an-interactive-finger-reaching-task
#5
Johannes Brand, Marco Piccirelli, Marie-Claude Hepp-Reymond, Manfred Morari, Lars Michels, Kynan Eng
[This corrects the article DOI: 10.1371/journal.pone.0154807.].
2017: PloS One
https://www.readbyqxmd.com/read/28437453/three-dominant-awnless-genes-in-common-wheat-fine-mapping-interaction-and-contribution-to-diversity-in-awn-shape-and-length
#6
Motohiro Yoshioka, Julio C M Iehisa, Ryoko Ohno, Tatsuro Kimura, Hiroyuki Enoki, Satoru Nishimura, Shuhei Nasuda, Shigeo Takumi
The awn is a long needle-like structure formed at the tip of the lemma in the florets of some grass species. It plays a role in seed dispersal and protection against animals, and can contribute to the photosynthetic activity of spikes. Three main dominant inhibitors of awn development (Hd, B1 and B2) are known in hexaploid wheat, but the causal genes have not been cloned yet and a genetic association with awn length diversity has been found only for the B1 allele. To analyze the prevalence of these three awning inhibitors, we attempted to predict the genotypes of 189 hexaploid wheat varieties collected worldwide using markers tightly linked to these loci...
2017: PloS One
https://www.readbyqxmd.com/read/28437417/a-spare-hand
#7
Dan Robitzski
No abstract text is available yet for this article.
April 18, 2017: Scientific American
https://www.readbyqxmd.com/read/28437385/before-or-after-transplantation-a-review-of-the-cost-effectiveness-of-treating-waitlisted-patients-with-hepatitis-c
#8
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/28437161/randomized-phase-iii-trial-of-trastuzumab-plus-capecitabine-with-or-without-pertuzumab-in-patients-with-human-epidermal-growth-factor-receptor-2-positive-metastatic-breast-cancer-who-experienced-disease-progression-during-or-after-trastuzumab-based-therapy
#9
Ander Urruticoechea, Mohammed Rizwanullah, Seock-Ah Im, Antonio Carlos Sánchez Ruiz, István Láng, Gianluca Tomasello, Hannah Douthwaite, Tanja Badovinac Crnjevic, Sarah Heeson, Jennifer Eng-Wong, Montserrat Muñoz
Purpose To assess the efficacy and safety of trastuzumab plus capecitabine with or without pertuzumab in patients with human epidermal growth factor receptor 2-positive metastatic breast cancer who experienced disease progression during or after trastuzumab-based therapy and received a prior taxane. Patients and Methods Patients were randomly assigned to arm A: trastuzumab 8 mg/kg → 6 mg/kg once every 3 weeks plus capecitabine 1,250 mg/m(2) twice a day (2 weeks on, 1 week off, every 3 weeks); or arm B: pertuzumab 840 mg → 420 mg once every 3 weeks plus trastuzumab at the same dose and schedule as arm A plus capecitabine 1,000 mg/m(2) on the same schedule as arm A...
April 24, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28437073/inter-motif-communication-induces-hierarchical-ca2-filling-of-caldendrin
#10
Uday Kiran, Phanindranath Regur, Michael R Kreutz, Yogendra Sharma, Asima Chakraborty
A crucial event in calcium signalling is the transition of a calcium sensor from the apo (Ca2+ free) to the holo (Ca2+ saturated) state. Caldendrin (CDD) is a neuronal Ca2+-binding protein with two functional (EF3 and EF4) and two atypical (EF1 and EF2), non-Ca2+-binding EF-hand motifs. During the transition from the apo to the holo state, guided by the step-wise filling of Ca2+, the protein passes through distinct states and acquires a stable conformational state when only EF3 is occupied by Ca2+. This state is characterized by a Ca2+-derived structural gain in EF3 with destabilization of the EF4 motif...
April 24, 2017: Biochemistry
https://www.readbyqxmd.com/read/28437033/electrical-stress-influences-the-efficiency-of-ch3-nh3-pbi3-perovskite-light-emitting-devices
#11
Lianfeng Zhao, Jia Gao, YunHui L Lin, Yao-Wen Yeh, Kyung Min Lee, Nan Yao, Yueh-Lin Loo, Barry P Rand
Organic-inorganic hybrid perovskite materials are emerging as semiconductors with potential application in optoelectronic devices. In particular, perovskites are very promising for light-emitting devices (LEDs) due to their high color purity, low nonradiative recombination rates, and tunable bandgap. Here, using pure CH3 NH3 PbI3 perovskite LEDs with an external quantum efficiency (EQE) of 5.9% as a platform, it is shown that electrical stress can influence device performance significantly, increasing the EQE from an initial 5...
April 24, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28437028/esut-educational-video-on-fluoroscopic-guided-puncture-in-pcnl-all-techniques-step-by-step
#12
Iason Kyriazis, Evangelos Liatsikos, Odysseas Sopilidis, Panagiotis Kallidonis, Andreas Skolarikos
OBJECTIVE: Kidney puncture during percutaneous nephrolithotomy (PCNL) is regarded as one of the most demanding aspects of the procedure and only a minority of urologists perform this step without assistance by a radiologist. Currently a wide variation of fluoroscopic guided techniques is available in clinical practice. In this work we describe the most common fluoroscopic guided access techniques in a step-by-step manner aiming to assist on the standardization of their technique and terminology...
April 24, 2017: BJU International
https://www.readbyqxmd.com/read/28436890/in-situ-force-augmentation-improves-surface-contact-and-force-control
#13
Randy Lee, Roberta Klatzky, George Stetten
Surgeons routinely perform surgery with noisy, sub-threshold, or obscured visual and haptic feedback, either due to the necessary surgical approach, or because the systems on which they are operating are exceedingly delicate. Technological solutions incorporating haptic feedback augmentation have been proposed to address these difficulties, but the consequences for motor control have not been directly investigated and quantified. In this paper, we present two isometric force generation tasks performed with a hand-held robotic tool that provides in-situ augmentation of force sensation...
April 24, 2017: IEEE Transactions on Haptics
https://www.readbyqxmd.com/read/28436882/home-based-therapy-after-stroke-using-the-hand-spring-operated-movement-enhancer-handsome
#14
Ji Chen, Diane Nichols, Elizabeth B Brokaw, Peter S Lum
In previous work, we developed a lightweight wearable hand exoskeleton (HandSOME) that improves range of motion and function in laboratory testing. In this pilot study, we added the ability to log movement data for extended periods and recruited 10 chronic stroke subjects to use the device during reach and grasp task practice at home for 1.5 hours/day, 5 days per week, for 4 weeks. Seven subjects completed the study, performing 448 ± 651 hand movements per training day. After training, impairment was reduced (Fugl-Meyer Test; gain=4...
April 18, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28436879/study-on-interaction-between-temporal-and-spatial-information-in-classification-of-emg-signals-in-myoelectric-prostheses
#15
Radhika Menon, Gaetano Di Caterina, Heba Lakany, Lykourgos Petropoulakis, Bernard Conway, John Soraghan
Advanced forearm prosthetic devices employ classifiers to recognize different electromyography (EMG) signal patterns, in order to identify the user's intended motion gesture. The classification accuracy is one of the main determinants of real-time controllability of a prosthetic limb and hence the necessity to achieve as high an accuracy as possible. In this paper, we study the effects of the temporal and spatial information provided to the classifier on its offline performance and analyze their inter-dependencies...
April 19, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28436874/track-everything-limiting-prior-knowledge-in-online-multi-object-recognition
#16
Sebastien C Wong, Victor Stamatescu, Adam Gatt, David Kearney, Ivan Lee, Mark D McDonnell
This paper addresses the problem of online tracking and classification of multiple objects in an image sequence. Our proposed solution is to first track all objects in the scene without relying on object-specific prior knowledge, which in other systems can take the form of hand-crafted features or user-based track initialization. We then classify the tracked objects with a fastlearning image classifier that is based on a shallow convolutional neural network architecture and demonstrate that object recognition improves when this is combined with object state information from the tracking algorithm...
April 24, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28436868/high-order-local-pooling-and-encoding-gaussians-over-a-dictionary-of-gaussians
#17
Peihua Li, Hui Zeng, Qilong Wang, Simon Shiu, Lei Zhang
Local pooling (LP) in configuration (feature) space proposed by Boureau et al. explicitly restricts similar features to be aggregated, which can preserve as much discriminative information as possible. At the time it appeared, this method combined with sparse coding achieved competitive classification results with only a small dictionary. However, its performance lags far behind state-of-the-art results as only zero-order information is exploited. Inspired by the success of high-order statistical information in existing advanced feature coding or pooling methods, we make an attempt to address the limitation of LP...
April 19, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28436856/task-based-modeling-of-an-5k-ultra-high-resolution-medical-imaging-system-for-digital-breast-tomosynthesis
#18
Chumin Zhao, Jerzy Kanicki
High-resolution, low noise x-ray detectors based on CMOS active pixel sensor (APS) technology have demonstrated superior imaging performance for digital breast tomosynthesis (DBT). This paper presents a task-based model for a high resolution medical imaging system to evaluate its ability to detect simulated microcalcifications and masses as lesions for breast cancer. Three-dimensional (3D) cascaded system analysis for a 50 μm pixel pitch CMOS APS x-ray detector was integrated with an object task function, a medical imaging display model, and the human eye contrast sensitivity function to calculate the detectability index and area under the ROC curve (AUC)...
April 19, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28436661/performance-of-van-der-waals-corrected-functionals-for-guest-adsorption-in-the-m2-dobdc-metal-organic-frameworks
#19
Bess Vlaisavljevich, Johanna M Huck, Zeric Hulvey, Kyuho Lee, Jarad A Mason, Jeffrey B Neaton, Jeffrey R Long, Craig M Brown, Dario Alfè, Angelos Michaelides, Berend Smit
Small molecule binding in metal-organic frameworks (MOFs) can be accurately studied both experimentally and computationally, provided the proper tools are employed. Herein, we compare and contrast properties associated with guest binding by means of density functional theory (DFT) calculations using nine different functionals for the M2(dobdc) (dobdc4- = 2,5-dioxido,1,4-benzenedicarboxylate) series where M = Mg, Mn, Fe, Co, Ni, Cu, and Zn. Additionally, we perform Quantum Monte Carlo (QMC) calculations for one system to determine if this method can be used to assess the performance of DFT...
April 24, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28436601/management-of-skin-adverse-events-associated-with-immune-checkpoint-inhibitors-in-patients-with-melanoma-a-nursing-perspective
#20
Melissa Thebeau, Krista Rubin, Matthias Hofmann, Julia Grimm, Alyona Weinstein, Jennifer N Choi
PURPOSE: Immune checkpoint inhibitors are associated with a unique immune-related side effect profile that requires prompt recognition and management. Skin toxicities are the most common, and often earliest occurring, drug-related adverse events (AEs) of any grade observed upon treatment with these agents. The purpose of this review is to provide practical guidance on the identification and treatment of skin AEs associated with the immune checkpoint inhibitors (ipilimumab, nivolumab, and pembrolizumab) from a nursing perspective, and demonstrate hands-on application of the guidance using relevant patient case studies...
April 24, 2017: Journal of the American Association of Nurse Practitioners
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