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Yingxiao Mu, Zhiyong Yang, Junru Chen, Zhan Yang, Wenlang Li, Xianbao Tan, Zhu Mao, Tao Yu, Juan Zhao, Shizhao Zheng, Siwei Liu, Yi Zhang, Zhenguo Chi, Jiarui Xu, Matthew P Aldred
The persistent room-temperature phosphorescence (RTP) of purely organic materials in the solid state has recently attracted much research interest and found promising, rapid and visual applications by the naked eye, after the removal of the excitation source. However, almost all reported organic persistent RTP processes are induced by using a UV-light irradiation source. In this report, persistent RTP with an emission lifetime as long as 0.15 s which can be induced not only by photoirradiation but also by mechanical action is presented, which merges mechano-induced luminescence and persistent RTP together...
April 21, 2018: Chemical Science
Michael S Schallmo, Thomas H Fitzpatrick, Hunter B Yancey, Alejandro Marquez-Lara, T David Luo, Allston J Stubbs
BACKGROUND: The effect of hip arthroscopy on athletic performance compared with preinjury levels for professional athletes in different sports remains unknown. In addition, while return rates have been reported for professional baseball, football, and hockey players, return rates have not been reported for professional basketball players. HYPOTHESIS: Professional athletes in 4 major North American sports would be able to return to their sport and preoperative level of performance at a high rate after arthroscopic hip surgery...
May 1, 2018: American Journal of Sports Medicine
Jordan Stares, Brian Dawson, Peter Peeling, Michael Drew, Jarryd Heasman, Brent Rogalski, Marcus Colby
OBJECTIVES: Examine the influence of rehabilitation training loads on return to play (RTP) time and subsequent injury in elite Australian footballers. DESIGN: Prospective cohort study. METHODS: Internal (sessional rating of perceived exertion: sRPE) and external (distance, sprint distance) workload and lower limb non-contact muscle injury data was collected from 58 players over 5 seasons. Rehabilitation periods were analysed for running workloads and time spent in 3 rehabilitation stages (1: off-legs training, 2: non-football running, 3: group football training) was calculated...
April 10, 2018: Journal of Science and Medicine in Sport
Kelly M Trevino, Charlotte Healy, Peter Martin, Beverly Canin, Karl Pillemer, Jo Anne Sirey, M Cary Reid
INTRODUCTION: Older adults with cancer (OACs) are a large and growing population. Psychological distress is prevalent in this population yet few OACs receive evidence-based psychological care. The purpose of this project was to identify barriers and strategies for the implementation of psychological interventions to OACs from the perspective of OACs, OAC caregivers, researchers, clinicians, and advocacy organization members. METHODS: The Cornell Research-to-Practice (RTP) Consensus Workshop Model was used to organize and convene a consensus conference...
May 11, 2018: Journal of Geriatric Oncology
Seth L Sherman, Daniel P Deasis, Andrew J Garrone, Elliott E Voss, Harvey A Oliver
PURPOSE OF REVIEW: The purpose of this review is to evaluate the existing literature regarding return to play (RTP) and return to prior performance (RPP) following patellar stabilization surgery. It will also discuss suggested guidelines regarding RTP, and finally, to encourage future patellofemoral instability research to report and publish results of RTP rates using standardized RTP guidelines. RECENT FINDINGS: There is a lack of validation and universal adoption of standardized RTP guidelines...
May 10, 2018: Current Reviews in Musculoskeletal Medicine
Eleana Ntatsaki, Alba Velo-Garcia, Vassilios S Vassiliou, Alan D Salama, David A Isenberg
Lupus nephritis (LN) is an important cause of morbidity and mortality in patients with systemic lupus erythematosus (SLE) often leading to end-stage renal failure (ESRF) and necessitating renal transplantation (rTp). Optimal timing of rTp in SLE patients with ESRF is uncertain and could potentially affect survival. We investigated the time spent on dialysis before rTp and survival following rTp in a cohort of SLE patients. Retrospective analysis of all adult SLE patients receiving rTp over a 40-year period (1975-2015) in two tertiary UK centres...
May 11, 2018: Clinical Rheumatology
René M Winter, Sara Leibfarth, Holger Schmidt, Kerstin Zwirner, David Mönnich, Stefan Welz, Nina F Schwenzer, Christian la Fougère, Konstantin Nikolaou, Sergios Gatidis, Daniel Zips, Daniela Thorwarth
BACKGROUND AND PURPOSE: Functional PET/MRI has great potential to improve radiotherapy planning (RTP). However, data integration requires imaging with radiotherapy-specific patient positioning. Here, we investigated the feasibility and image quality of radiotherapy-customized PET/MRI in head-and-neck cancer (HNC) patients using a dedicated hardware setup. MATERIAL AND METHODS: Ten HNC patients were examined with simultaneous PET/MRI before treatment, with radiotherapy and diagnostic scan setup, respectively...
May 7, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
Jian-Zhen Liao, Lingyi Meng, Ji-Hui Jia, Dong Liang, Xu-Lin Chen, Rong-Min Yu, Xiao-Fei Kuang, Can-Zhong Lu
Room-temperature phosphorescence (RTP) was realized for the first time in a polyoxometalate-based charge-transfer (CT) hybrid material bearing polyoxometalates (POMs) as electron-donors (D) and rigid naphthalene diimides (NDIs) as electron-acceptors (A), meanwhile, this hybrid material displayed photochromism as well. The significant D-A anion-π interactions induced an additional through-space charge-transfer pathway. The resulting suitable D-A CT states can efficiently bridge the relatively large energy gap between the NDI-localized 1π-π* and 3π-π* states and thus trigger the ligand-localized phosphorescence (3π-π*)...
May 8, 2018: Chemistry: a European Journal
Yu Xiong, Zheng Zhao, Wei Jun Zhao, Hui Li Ma, Qian Peng, Zi Kai He, Xue Peng Zhang, Yun Cong Chen, Xue Wen He, Jacky Lam, Ben Zhong Tang
Pure organic materials with ultralong room temperature phosphorescence (RTP) are attractive alternatives to inorganic phosphors. However, without heavy atoms and carbonyl or heteroatomic groups, they generally show inefficient intersystem crossing (ISC) due to the weak spin-orbit coupling (SOC). Many efforts have been made to enhance SOC but examples in realizing both efficient and ultralong RTP have been limited. Here we present a novel design principle based on the realization of small energy gap between the lowest singlet and triplet states (ΔEST) and pure ππ* configuration of the lowest triplet state (T1) via structural isomerism to obtain efficient and ultralong RTP materials...
May 8, 2018: Angewandte Chemie
Indranil Bhattacharjee, Nirmalya Acharya, Harsh Bhatia, Debdas Ray
The emergence of single-component organic dual light emitters holds great promise for white light-emitting diodes (WLEDs) and biological detection due to the involvement of broad emission covering visible spectrum. Here we show experimental studies on dual emission of carbazole-quinoline conjugate (CQ) that exhibits both thermally activated delayed fluorescence (TADF) via reverse intersystem crossing (rISC) from the higher-lying triplet state ( T2 ) to the singlet state ( S1 ) and room-temperature phosphorescence (RTP) from the lowest triplet state ( T1 ) due to low energy gap between T2 and S1 , and energetic proximity of T1 with T2 ...
May 7, 2018: Journal of Physical Chemistry Letters
He Tian, Xiang Ma, Chao Xu, Jie Wang
Pure organic, especially heavy-atom-free room-temperature phosphorescence (RTP) materials have attracted much attention and presented potential applications in photoelectric and biochemical material fields due to rich excited state properties, with advantages of long luminescent lifetime, diversified design and facile preparation. However, recent achievements of efficient phosphorescence under ambient condition mainly focused on ordered crystal lattice or embedding into rigid matrices, which means that strict growth conditions and difficulty repeatability are inevitable...
May 2, 2018: Angewandte Chemie
José Wilson Benevides de Mesquita Neto, Francisco Igor Macedo, Yang Liu, Anusak Yiengpruksawan
Robotic total pancreatectomy (RTP) is a novel surgical approach currently performed by a select group of skilled surgeons. As robotic approaches to pancreatic surgery increase worldwide, rates of RTP are expected to increase. However, the standard technique is still evolving and several technical problems still require evaluation. Here, we describe our approach in a stepwise fashion and discuss solutions to overcome technical difficulties.
April 30, 2018: Journal of Robotic Surgery
Paul Flechsig, Ramin Rastgoo, Clemens Kratochwil, Ole Martin, Tim Holland-Letz, Alexander Harms, Hans-Ulrich Kauczor, Uwe Haberkorn, Frederik L Giesel
PURPOSE: Tumor delineation within an atelectasis in lung cancer patients is not always accurate. When T staging is done by integrated 2-deoxy-2-[18 F]fluoro-D-glucose ([18 F]FDG)-positron emission tomography (PET)/X-ray computer tomography (CT), tumors of neuroendocrine differentiation and slowly growing tumors can present with reduced FDG uptake, thus aggravating an exact T staging. In order to further exhaust information derived from [18 F]FDG-PET/CT, we evaluated the impact of CT density and maximum standardized uptake value (SUVmax) for the classification of different tumor subtypes within a surrounding atelectasis, as well as possible cutoff values for the differentiation between the primary tumor and atelectatic lung tissue...
April 20, 2018: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
Hanyeob Nam, Hong-Seok Kim, Jae-Hee Han, Sang Jik Kwon, Eou Sik Cho
As direct formation of p-type two-dimensional transition metal dichalcogenides (TMDC) films on substrates, tungsten disulfide (WS2) thin films were deposited onto sapphire glass substrate through shadow mask patterns by radio-frequency (RF) sputtering at different sputtering powers ranging from 60 W to 150 W and annealed by rapid thermal processing (RTP) at various high temperatures ranging from 500 °C to 800 °C. Based on scanning electron microscope (SEM) images and Raman spectra, better surface roughness and mode dominant E12g and A1g peaks were found for WS2 thin films prepared at higher RF sputtering powers...
September 1, 2018: Journal of Nanoscience and Nanotechnology
Federica Rosso, Davide E Bonasia, Umberto Cottino, Simone Cambursano, Federico Dettoni, Roberto Rossi
Purpose  To analyze the prognostic factors influencing subjective and objective outcomes and return to play (RTP) after anterior cruciate ligament reconstruction (ACL-R). Methods  Primary ACL-Rs using a transtibial technique performed between 2008 and 2012 were included. Data regarding patients, surgery, sports, and rehabilitation, including an on-field rehabilitation (OFR) and duration of the rehabilitation program, were collected. The International Knee Documentation Committee (IKDC) subjective and objective evaluation forms, and the Knee Injury and Osteoarthritis Outcome Score and Lysholm questionnaires were used for the assessment of subjective and objective outcomes...
March 2018: Joints
Samuel C Overley, Steven J McAnany, Steve Andelman, Jun Kim, Robert K Merrill, Samuel K Cho, Sheeraz A Qureshi, Andrew C Hecht
Study Design: Meta-analysis. Objectives: To assess return to play (RTP) rates in adolescent athletes with lumbar spondylolysis without spondylolisthesis treated conservatively or operatively. Methods: A review of Medline, EMBASE, and Cochrane Reviews was performed. The pooled results were performed by calculating the effect size based on the logit event rate. Studies were weighted by the inverse of the variance. Confidence intervals were reported at 95%...
April 2018: Global Spine Journal
Osama M Asaad
PURPOSE: The purpose of this study was to assess the changes in regional cerebral oxygen saturation (rScO2 ) in response to different ventilation strategies: inspired oxygen concentration (FiO2 ), end-tidal carbon dioxide (EtCO2 ), and positive end expiratory pressure (PEEP) in addition to optimizing mean arterial pressure (MAP) in obese patients subjected to laparoscopic bariatric surgery in the reverse trendelenburg position. METHODS: 50 obese patients were randomly assigned into one of two groups...
April 6, 2018: Journal of Anesthesia
Zhaofei Chai, Can Wang, Jinfeng Wang, Fan Liu, Yujun Xie, Yong-Zheng Zhang, Jian-Rong Li, Qianqian Li, Zhen Li
Purely organic materials with the characteristic of room-temperature phosphorescence (RTP) under ambient conditions demonstrate potential benefits in advanced optoelectronic applications. Exploration of versatile and efficient RTP compounds with low prices is full of challenges due to the slow intersystem crossing process and ultrafast deactivation of the active excited states of organic compounds. Here, a series of boron-containing phosphors were found to present RTP with long-lived lifetimes. Among these commercially available and cheap compounds, (4-methoxyphenyl)boronic acid (PBA-MeO) exhibits long-lived RTP, with a lifetime of 2...
December 1, 2017: Chemical Science
Xinrui Xu, Rongwei Fan, Xudong Li, Yufei Ma, Renpeng Yan, Xing Wang, Zhadong Chen, Zhigang Zhou, Deying Chen
A laser-diode-pumped broadband and continuously frequency-tuned all-solid-state Nd:YVO4 laser at 1064 nm with an output power of 200 mW is demonstrated. A RbTiOPO4 (RTP) etalon and a piezoelectric-transducer (PZT) are utilized for coarse and fine frequency tuning, respectively. Dependence of the frequency excursion on the applied voltage to the RTP etalon and the displacement of the PZT is theoretically and experimentally investigated. A continuous frequency tuning of 14 GHz is conducted by synchronous adjustment of the RTP etalon and the PZT...
March 20, 2018: Applied Optics
Gülce Alp, Meryem Gülce Subaşı, Robert R Seghi, William M Johnston, Burak Yilmaz
OBJECTIVE: To evaluate the effect of shading technique and thickness on the color stability and translucency of translucent zirconia after coffee thermocycling. METHODS: Specimens in different thicknesses (1; 1.5; 2 mm) (n = 4 for each thickness) were sectioned from translucent preshaded zirconia (Pre) and externally shaded zirconia (Ext). After sintering, specimens were glazed and subjected to 10000 thermocycling in coffee solution. The color coordinates of specimens were measured with a spectroradiometer before and after coffee thermocyling...
March 26, 2018: Journal of Dentistry
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