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https://www.readbyqxmd.com/read/28509680/analyzing-dental-implant-sites-from-cone-beam-computed-tomography-scans-on-a-tablet-computer-a-comparative-study-between-ipad-and-3-display-systems
#1
Alejandro Carrasco, Elnaz Jalali, Ajay Dhingra, Alan Lurie, Sumit Yadav, Aditya Tadinada
PURPOSE: The aim of this study was to compare a medical-grade PACS (picture archiving and communication system) monitor, a consumer-grade monitor, a laptop computer, and a tablet computer for linear measurements of height and width for specific implant sites in the posterior maxilla and mandible, along with visualization of the associated anatomical structures. MATERIAL AND METHODS: Cone beam computed tomography (CBCT) scans were evaluated. The images were reviewed using PACS-LCD monitor, consumer-grade LCD monitor using CB-Works software, a 13″ MacBook Pro, and an iPad 4 using OsiriX DICOM reader software...
May 15, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28493924/cognitive-function-in-multiple-sclerosis-improves-with-telerehabilitation-results-from-a-randomized-controlled-trial
#2
Leigh E Charvet, Jie Yang, Michael T Shaw, Kathleen Sherman, Lamia Haider, Jianjin Xu, Lauren B Krupp
Cognitive impairment affects more than half of all individuals living with multiple sclerosis (MS). We hypothesized that training at home with an adaptive online cognitive training program would have greater cognitive benefit than ordinary computer games in cognitively-impaired adults with MS. This was a double-blind, randomized, active-placebo-controlled trial. Participants with MS were recruited through Stony Brook Medicine and randomly assigned to either the adaptive cognitive remediation (ACR) program or active control of ordinary computer games for 60 hours over 12 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28490961/radiofrequency-radiations-induced-genotoxic-and-carcinogenic-effects-on-chickpea-cicer-arietinum-l-root-tip-cells
#3
Sadaf Tabasum Qureshi, Sajjad Ahmed Memon, Abdul Rasool Abassi, Mahboob Ali Sial, Farooque Ali Bughio
Present study was under taken to predict the possible DNA damages (genotoxicity) and carcinogenicity caused by radiofrequency radiations (RF) to living tissue. Dry seeds of chickpea were treated with GSM cell phone (900 MHz) and laptop (3.31 GHz) as RF source for 24 and 48 h. Untreated seeds were used as (0 h) negative control and Gamma rays (250 Gray) as positive control. Plant chromosomal aberration assay was used as genotoxicity marker. All the treatment of RF inhibits seed germination percentage. 48 h laptop treatment has the most negative effect as compared to untreated control...
May 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28483746/a-web-based-graphical-food-frequency-assessment-system-design-development-and-usability-metrics
#4
Rodrigo Zenun Franco, Balqees Alawadhi, Rosalind Fallaize, Julie A Lovegrove, Faustina Hwang
BACKGROUND: Food frequency questionnaires (FFQs) are well established in the nutrition field, but there remain important questions around how to develop online tools in a way that can facilitate wider uptake. Also, FFQ user acceptance and evaluation have not been investigated extensively. OBJECTIVE: This paper presents a Web-based graphical food frequency assessment system that addresses challenges of reproducibility, scalability, mobile friendliness, security, and usability and also presents the utilization metrics and user feedback from a deployment study...
May 8, 2017: JMIR Human Factors
https://www.readbyqxmd.com/read/28471369/pepsi-saxs-an-adaptive-method-for-rapid-and-accurate-computation-of-small-angle-x-ray-scattering-profiles
#5
Sergei Grudinin, Maria Garkavenko, Andrei Kazennov
A new method called Pepsi-SAXS is presented that calculates small-angle X-ray scattering profiles from atomistic models. The method is based on the multipole expansion scheme and is significantly faster compared with other tested methods. In particular, using the Nyquist-Shannon-Kotelnikov sampling theorem, the multipole expansion order is adapted to the size of the model and the resolution of the experimental data. It is argued that by using the adaptive expansion order, this method has the same quadratic dependence on the number of atoms in the model as the Debye-based approach, but with a much smaller prefactor in the computational complexity...
May 1, 2017: Acta Crystallographica. Section D, Structural Biology
https://www.readbyqxmd.com/read/28469375/numericware-i-identical-by-state-matrix-calculator
#6
REVIEW
Bongsong Kim, William D Beavis
We introduce software, Numericware i, to compute identical by state (IBS) matrix based on genotypic data. Calculating an IBS matrix with a large dataset requires large computer memory and takes lengthy processing time. Numericware i addresses these challenges with 2 algorithmic methods: multithreading and forward chopping. The multithreading allows computational routines to concurrently run on multiple central processing unit (CPU) processors. The forward chopping addresses memory limitation by dividing a dataset into appropriately sized subsets...
2017: Evolutionary Bioinformatics Online
https://www.readbyqxmd.com/read/28467317/deep-learning-based-artificial-vision-for-grasp-classification-in-myoelectric-hands
#7
Ghazal Ghazaei, Ali Alameer, Patrick Degenaar, Graham Morgan, Kianoush Nazarpour
OBJECTIVE: Computer vision-based assistive technology solutions can revolutionise the quality of care for people with sensorimotor disorders. The goal of this work was to enable trans-radial amputees to use a simple, yet efficient, computer vision system to grasp and move common household objects with a two-channel myoelectric prosthetic hand. APPROACH: We developed a deep learning-based artificial vision system to augment the grasp functionality of a commercial prosthesis...
May 3, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28448916/on-the-necessity-of-improving-the-environmental-impacts-of-furniture-and-appliances-in-net-zero-energy-buildings
#8
Endrit Hoxha, Thomas Jusselme
There is now clear evidence regarding the extensive use of furniture and appliances in daily human life, but there is less evidence of their impact on the environment. Responding to this gap in knowledge, this study focuses on an assessment of the environmental impacts of furniture and appliances as used in highly energy efficient buildings. Their primary energy, non-renewable energy and global warming potential indicators have been assessed by extending the boundaries of the Life Cycle Assessment (LCA) study beyond the building itself...
April 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28430208/illumination-data-transmission-and-energy-harvesting-the-threefold-advantage-of-vlc
#9
Harilaos G Sandalidis, Alexander Vavoulas, Theodoros A Tsiftsis, Nicholas Vaiopoulos
Visible light communication (VLC) is a promising technology that meets illumination and information transmission requirements in an indoor environment. Because light waves convey energy, a VLC link may exploit that fact for energy harvesting purposes. In this context, a single light emitting diode lamp located at a close distance over a tablet or laptop PC can potentially offer simultaneous lighting, Internet access, and battery recharging without cables. The present study introduces this threefold role of VLC systems by properly adapting some energy harvesting receiver architectures recently launched for usage in RF communications...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28428869/rapid-maximum-likelihood-ancestral-state-reconstruction-of-continuous-characters-a-rerooting-free-algorithm
#10
Eric W Goolsby
Ancestral state reconstruction is a method used to study the evolutionary trajectories of quantitative characters on phylogenies. Although efficient methods for univariate ancestral state reconstruction under a Brownian motion model have been described for at least 25 years, to date no generalization has been described to allow more complex evolutionary models, such as multivariate trait evolution, non-Brownian models, missing data, and within-species variation. Furthermore, even for simple univariate Brownian motion models, most phylogenetic comparative R packages compute ancestral states via inefficient tree rerooting and full tree traversals at each tree node, making ancestral state reconstruction extremely time-consuming for large phylogenies...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28425075/technical-note-real-time-web-based-wireless-visual-guidance-system-for-radiotherapy
#11
Danny Lee, Siyong Kim, Jatinder R Palta, Taeho Kim
Describe a Web-based wireless visual guidance system that mitigates issues associated with hard-wired audio-visual aided patient interactive motion management systems that are cumbersome to use in routine clinical practice. Web-based wireless visual display duplicates an existing visual display of a respiratory-motion management system for visual guidance. The visual display of the existing system is sent to legacy Web clients over a private wireless network, thereby allowing a wireless setting for real-time visual guidance...
April 19, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28418324/prosody-perception-and-production-in-children-with-hearing-loss-and-age-and-gender-matched-controls
#12
Rose Thomas Kalathottukaren, Suzanne C Purdy, Elaine Ballard
BACKGROUND: Auditory development in children with hearing loss, including the perception of prosody, depends on having adequate input from cochlear implants and/or hearing aids. Lack of adequate auditory stimulation can lead to delayed speech and language development. Nevertheless, prosody perception and production in people with hearing loss have received less attention than other aspects of language. The perception of auditory information conveyed through prosody using variations in the pitch, amplitude, and duration of speech is not usually evaluated clinically...
April 2017: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/28413619/picopore-a-tool-for-reducing-the-storage-size-of-oxford-nanopore-technologies-datasets-without-loss-of-functionality
#13
Scott Gigante
Oxford Nanopore Technologies' (ONT) MinION and PromethION long-read sequencing technologies are emerging as genuine alternatives to established Next-Generation Sequencing technologies. A combination of the highly redundant file format and a rapid increase in data generation have created a significant problem both for immediate data storage on MinION-capable laptops, and for long-term storage on lab data servers.  We developed Picopore, a software suite offering three methods of compression. Picopore's lossless and deep lossless methods provide a 25% and 44% average reduction in size, respectively, without removing any data from the files...
2017: F1000Research
https://www.readbyqxmd.com/read/28406937/cost-and-time-effective-method-for-multi-scale-measures-of-rugosity-fractal-dimension-and-vector-dispersion-from-coral-reef-3d-models
#14
G C Young, S Dey, A D Rogers, D Exton
We present a method to construct and analyse 3D models of underwater scenes using a single cost-effective camera on a standard laptop with (a) free or low-cost software, (b) no computer programming ability, and (c) minimal man hours for both filming and analysis. This study focuses on four key structural complexity metrics: point-to-point distances, linear rugosity (R), fractal dimension (D), and vector dispersion (1/k). We present the first assessment of accuracy and precision of structure-from-motion (SfM) 3D models from an uncalibrated GoPro™ camera at a small scale (4 m2) and show that they can provide meaningful, ecologically relevant results...
2017: PloS One
https://www.readbyqxmd.com/read/28399062/listening-effort-through-depth-of-processing-in-school-age-children
#15
Benson Cheng-Lin Hsu, Filiep Vanpoucke, Astrid van Wieringen
OBJECTIVES: A reliable and practical measure of listening effort is crucial in the aural rehabilitation of children with communication disorders. In this article, we propose a novel behavioral paradigm designed to measure listening effort in school-age children based on different depths and levels of verbal processing. The paradigm consists of a classic word recognition task performed in quiet and in noise coupled to one of three additional tasks asking the children to judge the color of simple pictures or a certain semantic category of the presented words...
April 10, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28393551/imitation-based-aphasia-therapy-increases-narrative-content-a-case-series
#16
E Susan Duncan, Steven L Small
OBJECTIVE: To test the generalization of an intensive imitation-based aphasia therapy to an unrelated narrative production task. DESIGN: ABA design study (A= no treatment; B= treatment) comparing imitation therapy to a baseline condition (pre-therapy). Participants produced narratives at two pre-therapy and two post-therapy time points. Narratives were analyzed for correct information units to determine the number and percent of communicative words produced. SETTING: A rehabilitation clinic and participants' homes...
April 1, 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/28380036/simple-agarose-micro-confinement-array-and-machine-learning-based-classification-for-analyzing-the-patterned-differentiation-of-mesenchymal-stem-cells
#17
Nobuyuki Tanaka, Tadahiro Yamashita, Asako Sato, Viola Vogel, Yo Tanaka
The geometrical confinement of small cell colonies gives differential cues to cells sitting at the periphery versus the core. To utilize this effect, for example to create spatially graded differentiation patterns of human mesenchymal stem cells (hMSCs) in vitro or to investigate underpinning mechanisms, the confinement needs to be robust for extended time periods. To create highly repeatable micro-fabricated structures for cellular patterning and high-throughput data mining, we employed here a simple casting method to fabricate more than 800 adhesive patches confined by agarose micro-walls...
2017: PloS One
https://www.readbyqxmd.com/read/28369761/erythema-ab-igne-new-technology-rebounding-upon-its-users
#18
REVIEW
Fernanda Salgado, Marc Z Handler, Robert A Schwartz
Erythema ab igne (EAI) is a persistent, chronic skin condition resulting from prolonged exposure to infrared radiation, experienced as heat. Once associated with traditional warming sources like wood burning stoves or open fires, modern, infrared exposure originates also from newer sources like laptops and heating pads and may be creating a rebound of EAI. The epidemiology may be different too, with younger patients than previously seen. Localized EAI over an area of pain in the abdomen or lower back can be a sign of an underlying disorder, including cancer...
March 30, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28368835/lung-field-segmentation-in-chest-radiographs-from-boundary-maps-by-a-structured-edge-detector
#19
Wei Yang, Yunbi Liu, Liyan Lin, Zhaoqiang Yun, Zhentai Lu, Qianjin Feng, Wufan Chen
Lung field segmentation in chest radiographs (CXRs) is an essential preprocessing step in automatically analyzing such images. We present a method for lung field segmentation that is built on a high-quality boundary map detected by an efficient modern boundary detector, namely, a structured edge detector (SED). A SED is trained beforehand to detect lung boundaries in CXRs with manually outlined lung fields. Then, an ultrametric contour map (UCM) is transformed from the masked and marked boundary map. Finally, the contours with the highest confidence level in the UCM are extracted as lung contours...
March 27, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28362673/fixed-level-frequency-threshold-testing-for-ototoxicity-monitoring
#20
Catherine C Rieke, Odile H Clavier, Lindsay V Allen, Allison P Anderson, Chris A Brooks, Abigail M Fellows, Douglas S Brungart, Jay C Buckey
OBJECTIVES: Hearing loss from ototoxicity is often most pronounced at high frequencies. To improve patient monitoring and compliance, high-frequency testing methods should be short and easy to administer. We evaluated the repeatability and accuracy of a Békésy-like, fixed-level frequency threshold (FLFT) technique. This test takes less than a minute and could provide a rapid and effective way to determine the highest audible frequency. We hypothesized the FLFT test would be repeatable in normal-hearing subjects, and accurate when compared with Békésy fixed-frequency audiometry in the sensitive region for ototoxicity (SRO)...
March 30, 2017: Ear and Hearing
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