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https://www.readbyqxmd.com/read/28097937/an-assembly-type-master-slave-catheter-and-guidewire-driving-system-for-vascular-intervention
#1
Hyo-Jeong Cha, Byung-Ju Yi, Jong Yun Won
Current vascular intervention inevitably exposes a large amount of X-ray to both an operator and a patient during the procedure. The purpose of this study is to propose a new catheter driving system which assists the operator in aspects of less X-ray exposure and convenient user interface. For this, an assembly-type 4-degree-of-freedom master-slave system was designed and tested to verify the efficiency. First, current vascular intervention procedures are analyzed to develop a new robotic procedure that enables us to use conventional vascular intervention devices such as catheter and guidewire which are commercially available in the market...
January 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28097499/automating-perforator-flap-mra-and-cta-reporting
#2
Christopher J Lange, Nanda Deepa Thimmappa, Srikanth R Boddu, Silvina P Dutruel, Mengchao Pei, Zerwa Farooq, Ashkan Heshmatzadeh Behzadi, Yi Wang, Ramin Zabih, Martin R Prince
Surgical breast reconstruction after mastectomy requires precise perforator coordinates/dimensions, perforator course, and fat volume in a radiology report. Automatic perforator reporting software was implemented as an OsiriX Digital Imaging and Communications in Medicine (DICOM) viewer plugin. For perforator analysis, the user identifies a reference point (e.g., umbilicus) and marks each perforating artery/vein bundle with multiple region of interest (ROI) points along its course beginning at the muscle-fat interface...
January 17, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28092609/horse-expert-an-aided-expert-system-for-diagnosing-horse-diseases
#3
H Qin, J Xiao, X Gao, H Wang
In contrast to the rapid development of the horse husbandry in China, the ability of horse veterinarians to diagnose diseases has not been improved and only a few domain experts have considerable expertise. At present, many expert systems have been developed for diseases diagnosis, but few for horse diseases diagnosis have been studied in depth. This paper presents the design and development of a computer-aided expert system for diagnosing horse diseases. We suggest an approach for diagnosis of horse diseases based on the analysis of diagnostic characteristics and the experiential knowledge of domain experts...
December 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28092564/static-vs-dynamic-decoding-algorithms-in-a-non-invasive-body-machine-interface
#4
Ismael Seanez-Gonzalez, Camilla Pierella, Ali Farshchiansadegh, Elias Barry Thorp, Farnaz Abdollahi, Jessica P Pedersen, Ferdinando A Mussa-Ivaldi
In this study, we consider a non-invasive bodymachine interface that captures body motions still available to people with spinal cord injury (SCI) and maps them into a set of signals for controlling a computer user interface while engaging in a sustained level of mobility and exercise. We compare the effectiveness of two decoding algorithms that transform a highdimensional body-signal vector into a lower dimensional control vector on 6 subjects with high-level SCI and 8 controls. One algorithm is based on a static map from current body signals to the current value of the control vector set through principal component analysis (PCA), the other on dynamic mapping a segment of body signals to the value and the temporal derivatives of the control vector set through a Kalman filter...
December 15, 2016: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28091397/a-novel-stimulation-method-for-multi-class-ssvep-bci-using-intermodulation-frequencies
#5
Xiaogang Chen, Yijun Wang, Shangen Zhang, Shangkai Gao, Yong Hu, Xiaorong Gao
OBJECTIVE: Steady-state visual evoked potential (SSVEP)-based brain-computer interface (BCI) has been widely investigated because of its easy system configuration, high information transfer rate (ITR) and little user training. However, due to the limitations of brain responses and the refresh rate of a monitor, the available stimulation frequencies for practical BCI application are generally restricted. APPROACH: This study introduced a novel stimulation method using intermodulation frequencies for SSVEP-BCIs that had targets flickering at the same frequency but with different additional modulation frequencies...
January 16, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28088754/top-considerations-for-creating-bioinformatics-software-documentation
#6
Mehran Karimzadeh, Michael M Hoffman
Investing in documenting your bioinformatics software well can increase its impact and save your time. To maximize the effectiveness of your documentation, we suggest following a few guidelines we propose here. We recommend providing multiple avenues for users to use your research software, including a navigable HTML interface with a quick start, useful help messages with detailed explanation and thorough examples for each feature of your software. By following these guidelines, you can assure that your hard work maximally benefits yourself and others...
January 14, 2017: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/28088527/navigation-in-the-electronic-health-record-a-review-of-the-safety-and-usability-literature
#7
REVIEW
Lisette C Roman, Jessica S Ancker, Stephen B Johnson, Yalini Senathirajah
OBJECTIVE: Inefficient navigation in electronic health records has been shown to increase users' cognitive load, which may increase potential for errors, reduce efficiency, and increase fatigue. However, navigation has received insufficient recognition and attention in the electronic health record (EHR) literature as an independent construct and contributor to overall usability. Our aims in this literature review were to (1) assess the prevalence of navigation-related topics within the EHR usability and safety research literature, (2) categorize types of navigation actions within the EHR, (3) capture relationships between these navigation actions and usability principles, and (4) collect terms and concepts related to EHR navigation...
January 11, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28088500/voice-emotion-perception-and-production-in-cochlear-implant-users
#8
REVIEW
N T Jiam, M Caldwell, M L Deroche, M Chatterjee, C J Limb
Voice emotion is a fundamental component of human social interaction and social development. Unfortunately, cochlear implant users are often forced to interface with highly degraded prosodic cues as a result of device constraints in extraction, processing, and transmission. As such, individuals with cochlear implants frequently demonstrate significant difficulty in recognizing voice emotions in comparison to their normal hearing counterparts. Cochlear implant-mediated perception and production of voice emotion is an important but relatively understudied area of research...
January 11, 2017: Hearing Research
https://www.readbyqxmd.com/read/28086746/mviaeval-a-web-tool-for-comprehensively-evaluating-the-performance-of-a-new-missing-value-imputation-algorithm
#9
Wei-Sheng Wu, Meng-Jhun Jhou
BACKGROUND: Missing value imputation is important for microarray data analyses because microarray data with missing values would significantly degrade the performance of the downstream analyses. Although many microarray missing value imputation algorithms have been developed, an objective and comprehensive performance comparison framework is still lacking. To solve this problem, we previously proposed a framework which can perform a comprehensive performance comparison of different existing algorithms...
January 13, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28078740/simlabel-a-graphical-user-interface-to-simulate-continuous-wave-epr-spectra-from-site-directed-spin-labeling-experiments
#10
E Etienne, N Le Breton, M Martinho, E Mileo, V Belle
Site Directed Spin Labeling (SDSL) combined with continuous wave Electron Paramagnetic Resonance (cw EPR) spectroscopy is a powerful technique to reveal, at the residue level, structural transitions in proteins. SDSL-EPR is based on the selective grafting of a paramagnetic label on the protein under study, followed by cw EPR analysis. To extract valuable quantitative information from SDSL-EPR spectra and thus give reliable interpretation on biological system dynamics, numerical simulations of the spectra are required...
January 12, 2017: Magnetic Resonance in Chemistry: MRC
https://www.readbyqxmd.com/read/28077885/designing-and-implementation-of-retina-image-drawing-system-and-automatic-report-generation-from-retina-examinations
#11
Reza Safdari, Mehrshad Mokhtaran, Shahram Tahmasebian
INTRODUCTION: Electronic medical records as one of major parts of electronic health records is an important application of Medical Informatics. EMR includes different types of data, Graphical items being one of these data types. To this end, a standard structure for storing and recovering and finally exchanging this data type is required. In order to standardize information items in this research, UMLS standard is used. In this research, graphical information from fondues designing in retina surgery forms is used for the task of implementation...
October 2016: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28077348/user-centered-design-of-serious-games-for-older-adults-following-3-years-of-experience-with-exergames-for-seniors-a-study-design
#12
Ellen Brox, Stathis Th Konstantinidis, Gunn Evertsen
BACKGROUND: Seniors need sufficient balance and strength to manage in daily life, and sufficient physical activity is required to achieve and maintain these abilities. This can be a challenge, but fun and motivational exergames can be of help. However, most commercial games are not suited for this age group for several reasons. Many usability studies and user-centered design (UCD) protocols have been developed and applied, but to the best of our knowledge none of them are focusing on seniors' use of games for physical activity...
January 11, 2017: JMIR Serious Games
https://www.readbyqxmd.com/read/28077064/an-internet-based-bioinformatics-toolkit-for-plant-biosecurity-diagnosis-and-surveillance-of-viruses-and-viroids
#13
Roberto A Barrero, Kathryn R Napier, James Cunnington, Lia Liefting, Sandi Keenan, Rebekah A Frampton, Tamas Szabo, Simon Bulman, Adam Hunter, Lisa Ward, Mark Whattam, Matthew I Bellgard
BACKGROUND: Detection and preventing entry of exotic viruses and viroids at the border is critical for protecting plant industries trade worldwide. Existing post entry quarantine screening protocols rely on time-consuming biological indicators and/or molecular assays that require knowledge of infecting viral pathogens. Plants have developed the ability to recognise and respond to viral infections through Dicer-like enzymes that cleave viral sequences into specific small RNA products. Many studies reported the use of a broad range of small RNAs encompassing the product sizes of several Dicer enzymes involved in distinct biological pathways...
January 11, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28076183/markov-influence-diagrams
#14
Francisco J Díez, Mar Yebra, Iñigo Bermejo, Miguel A Palacios-Alonso, Manuel Arias Calleja, Manuel Luque, Jorge Pérez-Martín
Markov influence diagrams (MIDs) are a new type of probabilistic graphical model that extends influence diagrams in the same way that Markov decision trees extend decision trees. They have been designed to build state-transition models, mainly in medicine, and perform cost-effectiveness analyses. Using a causal graph that may contain several variables per cycle, MIDs can model various patient characteristics without multiplying the number of states; in particular, they can represent the history of the patient without using tunnel states...
February 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28069869/determination-of-%C3%A2-9-tetrahydrocannabinol-thc-11-hydroxy-thc-11-nor-9-carboxy-thc-and-cannabidiol-in-human-plasma-using-gas-chromatography-tandem-mass-spectrometry
#15
David M Andrenyak, David E Moody, Matthew H Slawson, Daniel S O'Leary, Margaret Haney
Two marijuana compounds of particular medical interest are delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). A gas chromatography-tandem mass spectrometry (GC-MS-MS) method was developed to test for CBD, THC, hydroxy-THC (OH-THC) and carboxy-THC (COOH-THC) in human plasma. Calibrators (THC and OH-THC, 0.1 to 100; CBD, 0.25 to 100; COOH-THC, 0.5-500 ng/mL) and controls (0.3, 5 and 80 ng/mL, except COOH-THC at 1.5, 25 and 400 ng/mL) were prepared in blank matrix. Deuterated (d3) internal standards were added to 1-mL samples...
January 8, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28068916/inferring-condition-specific-targets-of-human-tf-tf-complexes-using-chip-seq-data
#16
Chia-Chun Yang, Min-Hsuan Chen, Sheng-Yi Lin, Erik H Andrews, Chao Cheng, Chun-Chi Liu, Jeremy J W Chen
BACKGROUND: Transcription factors (TFs) often interact with one another to form TF complexes that bind DNA and regulate gene expression. Many databases are created to describe known TF complexes identified by either mammalian two-hybrid experiments or data mining. Lately, a wealth of ChIP-seq data on human TFs under different experiment conditions are available, making it possible to investigate condition-specific (cell type and/or physiologic state) TF complexes and their target genes...
January 10, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28068146/a-natural-language-based-presentation-of-cognitive-stimulation-to-people-with-dementia-in-assistive-technology-a-pilot-study
#17
Nina Dethlefs, Maarten Milders, Heriberto Cuayáhuitl, Turkey Al-Salkini, Lorraine Douglas
Currently, an estimated 36 million people worldwide are affected by Alzheimer's disease or related dementias. In the absence of a cure, non-pharmacological interventions, such as cognitive stimulation, which slow down the rate of deterioration can benefit people with dementia and their caregivers. Such interventions have shown to improve well-being and slow down the rate of cognitive decline. It has further been shown that cognitive stimulation in interaction with a computer is as effective as with a human...
January 9, 2017: Informatics for Health & Social Care
https://www.readbyqxmd.com/read/28067859/a-wirelessly-powered-smart-contact-lens-with-reconfigurable-wide-range-and-tunable-sensitivity-sensor-readout-circuitry
#18
Jin-Chern Chiou, Shun-Hsi Hsu, Yu-Chieh Huang, Guan-Ting Yeh, Wei-Ting Liou, Cheng-Kai Kuei
This study presented a wireless smart contact lens system that was composed of a reconfigurable capacitive sensor interface circuitry and wirelessly powered radio-frequency identification (RFID) addressable system for sensor control and data communication. In order to improve compliance and reduce user discomfort, a capacitive sensor was embedded on a soft contact lens of 200 μm thickness using commercially available bio-compatible lens material and a standard manufacturing process. The results indicated that the reconfigurable sensor interface achieved sensitivity and baseline tuning up to 120 pF while consuming only 110 μW power...
January 7, 2017: Sensors
https://www.readbyqxmd.com/read/28067801/easy-handling-of-sensors-and-actuators-over-tcp-ip-networks-by-open-source-hardware-software
#19
Andrés Mejías, Reyes S Herrera, Marco A Márquez, Antonio José Calderón, Isaías González, José Manuel Andújar
There are several specific solutions for accessing sensors and actuators present in any process or system through a TCP/IP network, either local or a wide area type like the Internet. The usage of sensors and actuators of different nature and diverse interfaces (SPI, I2C, analogue, etc.) makes access to them from a network in a homogeneous and secure way more complex. A framework, including both software and hardware resources, is necessary to simplify and unify networked access to these devices. In this paper, a set of open-source software tools, specifically designed to cover the different issues concerning the access to sensors and actuators, and two proposed low-cost hardware architectures to operate with the abovementioned software tools are presented...
January 5, 2017: Sensors
https://www.readbyqxmd.com/read/28067511/1jch-nmr-profile-identification-of-key-structural-features-and-functionalities-by-visual-observation-and-direct-measurement-of-one-bond-proton-carbon-coupling-constants
#20
Núria Marcó, Alexandre A Souza, Pau Nolis, Carlos Cobas, Roberto R Gil, Teodor Parella
A user-friendly NMR interface for the visual and accurate determination of experimental one-bond proton-carbon coupling constants (1JCH) in small molecules is presented. This intuitive 1JCH profile correlates directly delta(1H) and 1JCH facilitates the rapid identification and assignment of 1H signals belonging to key structural elements and functional groups. Illustrative examples are provided for some target molecules including terminal alkynes, strained rings, electronegative substituents or lone-pair bearing heteronuclei...
January 9, 2017: Journal of Organic Chemistry
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