keyword
MENU ▼
Read by QxMD icon Read
search

fps

keyword
https://www.readbyqxmd.com/read/28637215/managerial-ownership-in-nursing-homes-staffing-quality-and-financial-performance
#1
Sean Shenghsiu Huang, John R Bowblis
Purpose of the Study: Ownership of nursing homes (NHs) has primarily focused broadly on differences between for-profit (FP), nonprofit (NFP), and government-operated facilities. Yet, among FPs, the understanding of detailed ownership structures at individual NHs is rather limited. Particularly, NH administrators may hold significant equity interests in their facilities, leading to heterogeneous financial incentives and NH outcomes. Through the principal-agent theory, this article studies how managerial ownership of individual facilities affects NH outcomes...
June 20, 2017: Gerontologist
https://www.readbyqxmd.com/read/28636361/a-machine-learning-assisted-approach-for-discovering-novel-inhibitors-targeting-bromodomain-containing-protein-4
#2
Jing Xing, Wenchao Lu, Rongfeng Liu, Yulan Wang, Yiqian Xie, Hao Zhang, Zhe Shi, Hao Jiang, Yu-Chih Liu, Kaixian Chen, Hualiang Jiang, Cheng Luo, Mingyue Zheng
Bromodomain-containing protein 4 (BRD4) is implicated in the pathogenesis of a number of different cancers, inflammatory diseases and heart failure. Much effort has been dedicated toward discovering novel scaffold BRD4 inhibitors (BRD4is) with different selectivity profiles and potential anti-resistance properties. Structure-based drug design (SBDD) and virtual screening (VS) are the most frequently used approaches. Here, we demonstrate a novel, structure-based VS approach that uses machine-learning algorithms trained on the priori structure and activity knowledge to predict the likelihood that a compound is a BRD4i based on its binding pattern with BRD4...
June 21, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28627330/gpu-accelerated-kernel-regression-reconstruction-for-freehand-3d-ultrasound-imaging
#3
Tiexiang Wen, Ling Li, Qingsong Zhu, Wenjian Qin, Jia Gu, Feng Yang, Yaoqin Xie
Volume reconstruction method plays an important role in improving reconstructed volumetric image quality for freehand three-dimensional (3D) ultrasound imaging. By utilizing the capability of programmable graphics processing unit (GPU), we can achieve a real-time incremental volume reconstruction at a speed of 25-50 frames per second (fps). After incremental reconstruction and visualization, hole-filling is performed on GPU to fill remaining empty voxels. However, traditional pixel nearest neighbor-based hole-filling fails to reconstruct volume with high image quality...
July 2017: Ultrasonic Imaging
https://www.readbyqxmd.com/read/28624156/a-noninvasive-blood-based-combinatorial-proteomic-biomarker-assay-to-detect-breast-cancer-in-women-under-the-age-of-50-years
#4
Ana P Lourenco, Kasey L Benson, Meredith C Henderson, Michael Silver, Elias Letsios, Quynh Tran, Kelly J Gordon, Sherri Borman, Christa Corn, Rao Mulpuri, Wendy Smith, Josie Alpers, Carrie Costantini, Nitin Rohatgi, Rebecca Yang, Ali Haythem, Shah Biren, Michael Morris, Fred Kass, David E Reese
BACKGROUND: Despite significant advances in breast imaging, the ability to detect breast cancer (BC) remains a challenge. To address the unmet needs of the current BC detection paradigm, 2 prospective clinical trials were conducted to develop a blood-based combinatorial proteomic biomarker assay (Videssa Breast) to accurately detect BC and reduce false positives (FPs) from suspicious imaging findings. PATIENTS AND METHODS: Provista-001 and Provista-002 (cohort one) enrolled Breast Imaging Reporting and Data System 3 or 4 women aged under 50 years...
May 23, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28614353/as-time-passes-by-observed-motion-speed-and-psychological-time-during-video-playback
#5
Thomas Jonathan Nyman, Eric Per Anders Karlsson, Jan Antfolk
Research shows that psychological time (i.e., the subjective experience and assessment of the passage of time) is malleable and that the central nervous system re-calibrates temporal information in accordance with situational factors so that psychological time flows slower or faster. Observed motion-speed (e.g., the visual perception of a rolling ball) is an important situational factor which influences the production of time estimates. The present study examines previous findings showing that observed slow and fast motion-speed during video playback respectively results in over- and underproductions of intervals of time...
2017: PloS One
https://www.readbyqxmd.com/read/28614264/extremely-low-frame-rate-digital-fluoroscopy-in-catheter-ablation-of-atrial-fibrillation-a-comparison-of-2-versus-4-frame-rate
#6
Ji Hyun Lee, Jun Kim, Minsu Kim, Jongmin Hwang, You Mi Hwang, Joon-Won Kang, Gi-Byoung Nam, Kee-Joon Choi, You-Ho Kim
Despite the technological advance in 3-dimensional (3D) mapping, radiation exposure during catheter ablation of atrial fibrillation (AF) continues to be a major concern in both patients and physicians. Previous studies reported substantial radiation exposure (7369-8690 cGy cm) during AF catheter ablation with fluoroscopic settings of 7.5 frames per second (FPS) under 3D mapping system guidance. We evaluated the efficacy and safety of a low-frame-rate fluoroscopy protocol for catheter ablation for AF.Retrospective analysis of data on 133 patients who underwent AF catheter ablation with 3-D electro-anatomic mapping at our institute from January 2014 to May 2015 was performed...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28609297/online-pretreatment-verification-of-high-dose-rate-brachytherapy-using-an-imaging-panel
#7
Gabriel P Fonseca, Mark Podesta, Murillo Bellezzo, Michiel R Van den Bosch, Ludy Lutgens, Ben G L Vanneste, Robert Voncken, Evert J Van Limbergen, Brigitte Reniers, Frank Verhaegen
Brachytherapy is employed to treat a wide variety of cancers. However, an accurate treatment verification method is currently not available. This study describes a pre-treatment verification system that uses an imaging panel (IP) to verify important aspects of the treatment plan. A detailed modelling of the IP was only possible with an extensive calibration performed using a robotic arm. Irradiations were performed with a high dose rate (HDR) (192)Ir source within a water phantom. An empirical fit was applied to measure the distance between the source and the detector so 3D Cartesian coordinates of the dwell positions can be obtained using a single panel...
July 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28606778/hmgb1-promotes-neurovascular-remodeling-via-rage-in-the-late-phase-of-subarachnoid-hemorrhage
#8
Xiaodi Tian, Liang Sun, Dongxia Feng, Qing Sun, Yang Dou, Chenglin Liu, Feng Zhou, Haiying Li, Haitao Shen, Zhong Wang, Gang Chen
High-mobility group box1 (HMGB1) is a nuclear protein widely expressed in the central nervous system. Extracellular HMGB1 serves as a proinflammatory cytokine and contributes to brain injury during the acute stage post-stroke. Recently, increasing evidence has demonstrated beneficial effects of HMGB1 in some types of brain injury, but little is known about its effects during the late phase of subarachnoid hemorrhage (SAH). This study was designed to explore the potential roles and mechanisms of HMGB1 and its receptor, receptor for advanced glycation end-products (Rage), on brain recovery in the late stage of experimental SAH...
June 9, 2017: Brain Research
https://www.readbyqxmd.com/read/28605659/trimester-specific-coagulation-and-anticoagulation-reference-intervals-for-healthy-pregnancy
#9
Chanjuan Cui, Shuo Yang, Jie Zhang, Guojing Wang, Shengkai Huang, Aiwei Li, Yuncong Zhang, Rui Qiao
BACKGROUND: Due to the normal physiological need of pregnancy and childbirth, the haemostatic system of pregnant women is different from that of healthy non-pregnant women. The aim of this study was to establish trimester-specific reference intervals of coagulation screening tests and thrombophilia markers in pregnancies without complications of females with Han ethnicity from North China. METHODS: In total 744 Han healthy pregnant women (first trimester 207 cases, second trimester 222 cases and third trimester 315 cases) and 121 healthy non-pregnant women were recruited in North China...
May 24, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28602760/how-to-increase-brightness-of-near-infrared-fluorescent-proteins-in-mammalian-cells
#10
Anton A Shemetov, Olena S Oliinyk, Vladislav V Verkhusha
Numerous near-infrared (NIR) fluorescent proteins (FPs) were recently engineered from bacterial photoreceptors but lack of their systematic comparison makes researcher's choice rather difficult. Here we evaluated side-by-side several modern NIR FPs, such as blue-shifted smURFP and miRFP670, and red-shifted mIFP and miRFP703. We found that among all NIR FPs, miRFP670 had the highest fluorescence intensity in various mammalian cells. For instance, in common HeLa cells miRFP703, mIFP, and smURFP were 2-, 9-, and 53-fold dimmer than miRFP670...
June 7, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28598555/experimental-and-numerical-investigation-on-the-transient-vascular-thermal-response-to-multi-pulse-nd-yag-laser
#11
Dong Li, Ruohui Li, Hao Jia, Bin Chen, Wenjuan Wu, Zhaoxia Ying
BACKGROUND AND OBJECTIVE: Port wine stains (PWS) are congenital vascular malformations that progressively darken and thicken with age. Laser therapy is currently the most effective way in clinical practice for PWS. A 1,064 nm Nd:YAG laser in the near-infrared band can achieve a deeper treatment depth compared to the current widely adopted pulsed dye laser. However, because of its relatively weak absorption by blood, single-pulse Nd:YAG laser requires high energy density to cause effective vessel damage, but may inflict undesirable burning to surrounding collagen...
June 9, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28574447/deciphering-structural-photophysics-of-fluorescent-proteins-by-kinetic-crystallography
#12
REVIEW
Dominique Bourgeois
Because they enable labeling of biological samples in a genetically-encoded manner, Fluorescent Proteins (FPs) have revolutionized life sciences. Photo-transformable fluorescent proteins (PTFPs), in particular, recently attracted wide interest, as their fluorescence state can be actively modulated by light, a property central to the emergence of super-resolution microscopy. PTFPs, however, exhibit highly complex photophysical behaviours that are still poorly understood, hampering the rational engineering of variants with improved performances...
June 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28574405/multi-institutional-microct-image-comparison-of-image-guided-small-animal-irradiators
#13
Chris Daniel Johnstone, Patricia Lindsay, Edward Graves, Eugene Wong, Jessica Perez, Yannick Poirier, Youssef Ben-Bouchta, Thilakshan Kanesalingam, Haijian Chen, Ashley Rubinstein, Ke Sheng, Magdalena Bazalova-Carter
To recommend imaging protocols and establish tolerance levels for microCT image quality assurance (QA) performed on conformal image-guided small animal irradiators. Method and Materials: A fully automated QA software SAPA (small animal phantom analyzer) for image analysis of the commercial Shelley micro-CT MCTP 610 phantom was developed, in which quantitative analyses of CT number linearity, signal-to-noise ratio (SNR), uniformity and noise, geometric accuracy, spatial resolution by means of modulation transfer function (MTF), and CT contrast were performed...
June 2, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28574367/efficient-sample-delay-calculation-for-2-d-and-3-d-ultrasound-imaging
#14
Aya Ibrahim, Pascal A Hager, Andrea Bartolini, Federico Angiolini, Marcel Arditi, Jean-Philippe Thiran, Luca Benini, Giovanni De Micheli
Ultrasound imaging is a reference medical diagnostic technique, thanks to its blend of versatility, effectiveness, and moderate cost. The core computation of all ultrasound imaging methods is based on simple formulae, except for those required to calculate acoustic propagation delays with high precision and throughput. Unfortunately, advanced three-dimensional (3-D) systems require the calculation or storage of billions of such delay values per frame, which is a challenge. In 2-D systems, this requirement can be four orders of magnitude lower, but efficient computation is still crucial in view of low-power implementations that can be battery-operated, enabling usage in numerous additional scenarios...
May 25, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28567563/ros-igtl-bridge-an-open-network-interface-for-image-guided-therapy-using-the-ros-environment
#15
Tobias Frank, Axel Krieger, Simon Leonard, Niravkumar A Patel, Junichi Tokuda
PURPOSE: With the growing interest in advanced image-guidance for surgical robot systems, rapid integration and testing of robotic devices and medical image computing software are becoming essential in the research and development. Maximizing the use of existing engineering resources built on widely accepted platforms in different fields, such as robot operating system (ROS) in robotics and 3D Slicer in medical image computing could simplify these tasks. We propose a new open network bridge interface integrated in ROS to ensure seamless cross-platform data sharing...
May 31, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28566783/a-comparative-study-to-evaluate-the-efficacy-of-platelet-rich-plasma-and-triamcinolone-to-treat-tennis-elbow
#16
Vanamali B Seetharamaiah, Amrit Gantaguru, Sunil Basavarajanna
BACKGROUND: Lateral elbow pain is common with a population prevalence of 1%-3%. The study was a comparative trial to validate the efficacy of single injection of platelet-rich plasma (PRP) for tennis elbow as compared with single injections of triamcinolone and placebo (normal saline) over a short term period. MATERIALS AND METHODS: Comparative trial with 3- and 6-month followup evaluated with visual analog scale (VAS) and facial pain scale (FPS). Our study included a total of eighty patients with unilateral or bilateral tennis elbows...
May 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28562536/acute-hyperammonemic-encephalopathy-after-fluoropyrimidine-based-chemotherapy-a-case-series-and-review-of-the-literature
#17
Seiichiro Mitani, Shigenori Kadowaki, Azusa Komori, Keiji Sugiyama, Yukiya Narita, Hiroya Taniguchi, Takashi Ura, Masashi Ando, Yozo Sato, Hidekazu Yamaura, Yoshitaka Inaba, Makoto Ishihara, Tsutomu Tanaka, Masahiro Tajika, Kei Muro
Acute hyperammonemic encephalopathy induced by fluoropyrimidines (FPs) is a rare complication. Its pathophysiology remains unclear, especially given the currently used regimens, including intermediate-doses of 5-fluorouracil (5-FU) or oral FP agents. We aimed to characterize the clinical manifestations in cancer patients who developed hyperammonemic encephalopathy after receiving FP-based chemotherapy.We retrospectively reviewed 1786 patients with gastrointestinal or primary-unknown cancer who received FP-based regimens between 2007 and 2012...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28560244/toward-real-time-quantification-of-fluorescence-molecular-probes-using-target-background-ratio-for-guiding-biopsy-and-endoscopic-therapy-of-esophageal-neoplasia
#18
Yang Jiang, Yuanzheng Gong, Joel H Rubenstein, Thomas D Wang, Eric J Seibel
Multimodal endoscopy using fluorescence molecular probes is a promising method of surveying the entire esophagus to detect cancer progression. Using the fluorescence ratio of a target compared to a surrounding background, a quantitative value is diagnostic for progression from Barrett's esophagus to high-grade dysplasia (HGD) and esophageal adenocarcinoma (EAC). However, current quantification of fluorescent images is done only after the endoscopic procedure. We developed a Chan-Vese-based algorithm to segment fluorescence targets, and subsequent morphological operations to generate background, thus calculating target/background (T/B) ratios, potentially to provide real-time guidance for biopsy and endoscopic therapy...
April 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28552191/measuring-geographical-accessibility-to-rural-and-remote-health-care-services-challenges-and-considerations
#19
Tayyab Ikram Shah, Stephan Milosavljevic, Brenna Bath
This research is focused on methodological challenges and considerations associated with the estimation of the geographical aspects of access to healthcare with a focus on rural and remote areas. With the assumption that GIS-based accessibility measures for rural healthcare services will vary across geographic units of analysis and estimation techniques, which could influence the interpretation of spatial access to rural healthcare services. Estimations of geographical accessibility depend on variations of the following three parameters: 1) quality of input data; 2) accessibility method; and 3) geographical area...
June 2017: Spatial and Spatio-temporal Epidemiology
https://www.readbyqxmd.com/read/28549868/the-impact-of-fatigue-on-satisfaction-of-search-in-chest-radiography
#20
Elizabeth A Krupinski, Kevin S Berbaum, Kevin M Schartz, Robert T Caldwell, Mark T Madsen
RATIONALE AND OBJECTIVES: To assess the nature of the satisfaction of search (SOS) effect in chest radiography when observers are fatigued; determine if we could replicate recent findings that have documented the nature of the SOS effect to be due to a threshold shift rather than a change in diagnostic accuracy as in earlier film-based studies. MATERIALS AND METHODS: Nearing or at the end of a clinical workday, 20 radiologists read 64 chest images twice, once with and once without the addition of a simulated pulmonary nodule...
May 23, 2017: Academic Radiology
keyword
keyword
36786
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"