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https://www.readbyqxmd.com/read/28781248/long-term-data-of-brs-presented-at-europcr-2017-friday-19-may
#1
Patrick W Serruys, Athanasios Katsikis, Yoshinobu Onuma
Bioresorbable scaffolds (BRS) were designed more than 30 years ago to overcome the disadvantages related to the permanent implantation of a metallic stent and, at present, a number of these devices have obtained a CE mark on the basis of midterm follow-up studies. However, although BRS have already been introduced into clinical practice, intensive research is ongoing worldwide to clarify their long-term safety and effectiveness. This type of research has captivated the interest of the cardiovascular community after the recent publication of long-term follow-up data from randomised trials demonstrating increased late scaffold thrombosis in the Absorb™ BRS (Abbott Vascular, Santa Clara, CA, USA)...
August 4, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28748244/a-high-performance-and-low-cost-hole-transporting-layer-for-efficient-and-stable-perovskite-solar-cells
#2
Md Arafat Mahmud, Naveen Kumar Elumalai, Mushfika Baishakhi Upama, Dian Wang, Vinicius R Gonçales, Matthew Wright, Cheng Xu, Faiazul Haque, Ashraf Uddin
Here we report a small molecule oxidant 2,3,5,6-tetrafluoro-7,7,8,8-tetracyano-quinodimethane (F4TCNQ) doped, low cost 2',7'-bis(bis(4-methoxyphenyl)amino)spiro[cyclopenta[2,1-b:3,4-b']dithiophene-4,9'-fluorene] (FDT) hole transporting layer (HTL) for efficient mixed organic cation based MA0.6FA0.4PbI3 (MA = methyl ammonium, FA = formamidinium) perovskite solar cells (PSCs), fabricated via a highly reproducible controlled nucleation assisted restricted volume solvent annealing method, having full temperature compatibility with flexible substrates...
August 9, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28742060/suppressed-kondo-effect-and-kosterlitz-thouless-type-phase-transition-induced-by-level-difference-in-a-triple-dot-device
#3
Yong-Chen Xiong, Hai-Ming Huang, Wen-Lei Zhao, Amel Laref
Quantum dot system provides an ideal platform for quantum information processing, within which to demonstrate the quantum states is one of the most important issue for quantum simulation and quantum computation. In this paper, we report a peculiar electron state in a parallel triple dot device where the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction is invalid when the level differences of the dots sweep into appropriate regime. This extraordinary tendency then results in an antiferromagnetic spin coupling between two of the dots and may lead to zero or full conductance, relying deeply on the relation of the two level spacings...
July 25, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28730066/-these-are-not-luxuries-it-is-essential-for-access-to-life-disability-related-out-of-pocket-costs-as-a-driver-of-economic-vulnerability-in-south-africa
#4
Jill Hanass-Hancock, Siphumelele Nene, Nicola Deghaye, Simmi Pillay
BACKGROUND: With the dawn of the new sustainable development goals, we face not only a world that has seen great successes in alleviating poverty but also a world that has left some groups, such as persons with disabilities, behind. Middle-income countries (MICs) are home to a growing number of persons with disabilities. As these countries strive to achieve the new goals, we have ample opportunity to include persons with disabilities in the emerging poverty alleviation strategies. However, a lack of data and research on the linkages between economic vulnerability and disability in MICs hampers our understanding of the factors increasing economic vulnerability in people with disabilities...
2017: Afr J Disabil
https://www.readbyqxmd.com/read/28727323/indocyanine-green-near-infrared-lymphangiography-for-evaluation-of-effectiveness-of-edema-fluid-flow-under-therapeutic-compression
#5
Marzanna T Zaleska, Waldemar L Olszewski
The commonly used modalities for therapy of limb lymphedema are manual lymphatic drainage, manual devices moving edema fluid and intermittent pneumatic compression (IPC). What seems to be necessary for validation of the effect of the compression procedure is imaging of the mobilized moving edema fluid. Picture of edema fluid flow would allow the therapist to use force adjusted to the tissue volume and stiffness differing in various limb regions as well as identify sites of abundant accumulation of fluid requiring more compression...
July 20, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28721740/clinical-features-and-subjective-physiological-responses-to-emotional-stimuli-in-the-presence-of-emotion-dysregulation-in-attention-deficit-hyperactivity-disorder
#6
Candan Taskiran, Serkan Karaismailoglu, Halime Tuna Cak Esen, Zeynep Tuzun, Aysen Erdem, Zeynep Dicle Balkanci, Anil Barak Dolgun, Sadriye Ebru Cengel Kultur
INTRODUCTION: Emotion dysregulation (ED) has long been recognized in clinical descriptions of attention-deficit hyperactivity disorder (ADHD), but a renewed interest in ED has advanced research on the overlap between the two entities. Autonomic reactivity (AR) is a neurobiological correlate of emotion regulation; however, the association between ADHD and AR remains unclear. Our aim was to explore the clinical differences, AR, and subjective emotional responses to visual emotional stimuli in ADHD children with and without ED...
July 19, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28714329/synthetic-sutures-clinical-evaluation-and-future-developments
#7
Roxanna E Abhari, Joana A Martins, Hayley L Morris, Pierre-Alexis Mouthuy, Andrew Carr
Today's sutures are the result of a 4000-year innovation process with regard to their materials and manufacturing techniques, yet little has been done to enhance the therapeutic value of the suture itself. In this review, we explore the historical development, regulatory database and clinical literature of sutures to gain a fuller picture of suture advances to date. First, we examine historical shifts in suture manufacturing companies and review suture regulatory databases to understand the forces driving suture development...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28700823/complex-three-dimensional-magnetic-ordering-in-segmented-nanowire-arrays
#8
Alexander J Grutter, Kathryn L Krycka, Elena V Tartakovskaya, Julie A Borchers, K Sai Madhukar Reddy, Eduardo Ortega, Arturo Ponce, Bethanie J H Stadler
A comprehensive three-dimensional picture of magnetic ordering in high-density arrays of segmented FeGa/Cu nanowires is experimentally realized through the application of polarized small-angle neutron scattering. The competing energetics of dipolar interactions, shape anisotropy, and Zeeman energy in concert stabilize a highly tunable spin structure that depends heavily on the applied field and sample geometry. Consequently, we observe ferromagnetic and antiferromagnetic interactions both among wires and between segments within individual wires...
July 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28699153/-hydrocephalus-due-to-hyperplasia-of-the-choroid-plexuses-in-a-patient-with-trisomy-9-mosaicism-a-real-diagnostic-and-therapeutic-challenge
#9
P Puerta-Roldan, A Guillen-Quesada, R Carrasco, J Muchart, M Serrano, E Ferrer
INTRODUCTION: Trisomy 9 is an unusual chromosome abnormality in live-born patients, which is frequently accompanied by functional and structural anomalies of the central nervous system. Among many other alterations, several studies have been published in the English-speaking literature that show an association between chromosome 9 abnormality and pathologies affecting the choroid plexuses. CASE REPORT: We report the case of a 4-month-old male with trisomy 9 mosaicism associated to hydrocephalus secondary to choroid plexus hyperplasia, who was referred due to a clinical picture of intracranial hypertension...
August 1, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28698652/electrical-properties-of-graphene-metal-contacts
#10
Teresa Cusati, Gianluca Fiori, Amit Gahoi, Vikram Passi, Max C Lemme, Alessandro Fortunelli, Giuseppe Iannaccone
The performance of devices and systems based on two-dimensional material systems depends critically on the quality of the contacts between 2D material and metal. A low contact resistance is an imperative requirement to consider graphene as a candidate material for electronic and optoelectronic devices. Unfortunately, measurements of contact resistance in the literature do not provide a consistent picture, due to limitations of current graphene technology, and to incomplete understanding of influencing factors...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28690444/the-benefits-of-a-real-time-web-based-response-system-for-enhancing-engaged-learning-in-classrooms-and-public-science-events
#11
Mark A Sarvary, Kathleen M Gifford
Large introduction to neuroscience classes and small science cafés have the same goal: bridging the gap between the presenter and the audience to convey the information while being engaging. Early classroom response systems became the cornerstone of flipped and engaged learning. These "clickers" helped turn lectures into dialogues, allowing the presenter to become a facilitator rather than a "sage on the stage." Rapid technological developments, especially the increase of computing power opened up new opportunities, moving these systems from a clicker device onto cellphones and laptops...
2017: Journal of Undergraduate Neuroscience Education: JUNE: a Publication of FUN, Faculty for Undergraduate Neuroscience
https://www.readbyqxmd.com/read/28685724/role-of-contrast-enhanced-ultrasound-in-the-evaluation-of-inflammatory-arthritis
#12
REVIEW
Chen-Yang Zhao, Yu-Xin Jiang, Jian-Chu Li, Zhong-Hui Xu, Qing Zhang, Na Su, Meng Yang
OBJECTIVE: Contrast-enhanced ultrasound (CEUS) is a well-established imaging modality which has been put into clinical use in recent years with the development of second-generation contrast agent and imaging devices, and its applications in the assessment of inflammatory arthritis, such as rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis, have provoked abundant discussion and researches among radiologists and rheumatologists. To summarize the achievements of clinical studies on CEUS in the application of arthritis, and to keep up with the latest progresses of the imaging technique, we reviewed the literature in recent years, hoping to establish the role of CEUS in joint diseases...
July 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28661680/dynamic-electronic-junctions-in-organic-inorganic-hybrid-perovskites
#13
Xi Wang, Yichuan Ling, Yu-Che Chiu, Yijun Du, Jorge Luis Barreda, Fernando Perez-Orive, Biwu Ma, Peng Xiong, Hanwei Gao
Organic-inorganic hybrid perovskites have shown great potential as building blocks for low-cost optoelectronics for their exceptional optical and electrical properties. Despite the remarkable progress in device demonstration, fundamental understanding of the physical processes in halide perovskites remains limited, especially the unusual electronic behaviors such as the current-voltage hysteresis and the switchable photovoltaic effect. These phenomena are of particular interests for being closely related to device functionalities and performance...
July 5, 2017: Nano Letters
https://www.readbyqxmd.com/read/28650353/the-effect-of-hearing-loss-on-novel-word-learning-in-infant-and-adult-directed-speech
#14
V Susie Robertson, Deborah von Hapsburg, Jessica S Hay
OBJECTIVES: Relatively little is known about how young children with hearing impairment (HI) learn novel words in infant- and adult-directed speech (ADS). Infant-directed speech (IDS) supports word learning in typically developing infants relative to ADS. This study examined how children with normal hearing (NH) and children with HI learn novel words in IDS and ADS. It was predicted that IDS would support novel word learning in both groups of children. In addition, children with HI were expected to be less proficient word learners as compared with their NH peers...
June 22, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28635027/towards-the-use-of-bioresorbable-fibers-in-time-domain-diffuse-optics
#15
Laura Di Sieno, Nadia G Boetti, Alberto Dalla Mora, Diego Pugliese, Andrea Farina, Sanathana Konugolu Venkata Sekar, Edoardo Ceci-Ginistrelli, Davide Janner, Antonio Pifferi, Daniel Milanese
In the last years bioresorbable materials are gaining increasing interest for building implantable optical components for medical devices. In this work we show the fabrication of bioresorbable optical fibers designed for diffuse optics applications, featuring large core diameter (up to 200 μm) and numerical aperture (0.17) to maximize the collection efficiency of diffused light. We demonstrate the suitability of bioresorbable fibers for time-domain diffuse optical spectroscopy firstly checking the intrinsic performances of the setup by acquiring the instrument response function...
June 21, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28630206/rapid-and-consistent-evolution-of-colistin-resistance-in-xdr-pseudomonas-aeruginosa-during-morbidostat-culture
#16
Bianca Regenbogen, Matthias Willmann, Matthias Steglich, Boyke Bunk, Ulrich Nübel, Silke Peter, Richard A Neher
Colistin is a last resort antibiotic commonly used against multidrug-resistant strains of Pseudomonas aeruginosa To investigate the potential for in-situ evolution of resistance against colistin and to map the molecular targets of colistin resistance, we exposed two P. aeruginosa isolates to colistin using a continuous culture device known as morbidostat. As a result, colistin resistance reproducibly increased 10-fold within ten days, and 100-fold within 20 days, along with highly stereotypic, yet strain specific mutation patterns...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28602027/assistive-technology-for-memory-support-in-dementia
#17
REVIEW
Henriëtte G Van der Roest, Jennifer Wenborn, Channah Pastink, Rose-Marie Dröes, Martin Orrell
BACKGROUND: The sustained interest in electronic assistive technology in dementia care has been fuelled by the urgent need to develop useful approaches to help support people with dementia at home. Also the low costs and wide availability of electronic devices make it more feasible to use electronic devices for the benefit of disabled persons. Information Communication Technology (ICT) devices designed to support people with dementia are usually referred to as Assistive Technology (AT) or Electronic Assistive Technology (EAT)...
June 11, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28573989/evaluation-of-kayser-fleischer-ring-in-wilson-disease-by-anterior-segment-optical-coherence-tomography
#18
Mittanamalli S Sridhar, Advithi Rangaraju, Kavitha Anbarasu, Sharat Putta Reddy, Sachin Daga, Sita Jayalakshmi, Bajibhi Shaik
PURPOSE: The purpose of the study is to present anterior segment optical coherence tomography (AS-OCT) as an alternative method of evaluating Kayser-Fleischer (KF) ring in Wilson disease (WD) not only by ophthalmologists but also by other clinicians dealing with WD. MATERIALS AND METHODS: This was a retrospective case series of six WD patients with KF ring. Evaluation of KF ring was done by naked eye examination using torch light, slit lamp biomicroscopy (SL), and AS-OCT...
May 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28547888/mapping-the-free-energy-of-lithium-solvation-in-the-protic-ionic-liquid-ethylammonuim-nitrate-a-metadynamics-study
#19
Ali Kachmar, Marcelo Carignano, Teodoro Laino, Marcella Iannuzzi, Jürg Hutter
Understanding lithium solvation and transport in ionic liquids is important due to their possible application in electrochemical devices. Using first-principles simulations aided by a metadynamics approach we study the free-energy landscape for lithium ions at infinite dilution in ethylammonium nitrate, a protic ionic liquid. We analyze the local structure of the liquid around the lithium cation and obtain a quantitative picture in agreement with experimental findings. Our simulations show that the lowest two free energy minima correspond to conformations with the lithium ion being solvated either by three or four nitrate ions with a transition barrier between them of 0...
May 26, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28545585/a-systematic-review-of-left-ventricular-cardio-endoscopic-surgery
#20
REVIEW
Erdinc Soylu, Emaddin Kidher, Hutan Ashrafian, George Stavridis, Leanne Harling, Thanos Athanasiou
Better visualisation, accurate resection and avoidance of ventriculotomy associated with use of endoscopic devices during intracardiac surgery has led to increasing interest in their use. The possibility of combining a cardio-endoscopic technique with either minimally invasive or totally endoscopic cardiac surgery provides an incentive for its further development. Several devices have been used, however their uptake has been limited due to uncertainty around their impact on patient outcomes. A systematic review of the literature identified 34 studies, incorporating 54 subjects undergoing treatment of left ventricular tumours, thrombus or hypertrophic myocardium using a cardio-endoscopic technique...
May 25, 2017: Journal of Cardiothoracic Surgery
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