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https://www.readbyqxmd.com/read/28108546/automatic-health-record-review-to-help-prioritize-gravely-ill-social-security-disability-applicants
#1
Kenneth Abbott, Yen-Yi Ho, Jennifer Erickson
OBJECTIVE: Every year, thousands of patients die waiting for disability benefits from the Social Security Administration. Some qualify for expedited service under the Compassionate Allowance (CAL) initiative, but CAL software focuses exclusively on information from a single form field. This paper describes the development of a supplemental process for identifying some overlooked but gravely ill applicants, through automatic annotation of health records accompanying new claims. We explore improved prioritization instead of fully autonomous claims approval...
January 20, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28108428/identifying-topics-for-e-cigarette-user-generated-contents-a-case-study-from-multiple-social-media-platforms
#2
Yongcheng Zhan, Ruoran Liu, Qiudan Li, Scott James Leischow, Daniel Dajun Zeng
BACKGROUND: Electronic cigarette (e-cigarette) is an emerging product with a rapid-growth market in recent years. Social media has become an important platform for information seeking and sharing. We aim to mine hidden topics from e-cigarette datasets collected from different social media platforms. OBJECTIVE: This paper aims to gain a systematic understanding of the characteristics of various types of social media, which will provide deep insights into how consumers and policy makers effectively use social media to track e-cigarette-related content and adjust their decisions and policies...
January 20, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28108414/the-macaque-lateral-grasping-network-a-neural-substrate-for-generating-purposeful-hand-actions
#3
REVIEW
Elena Borra, Marzio Gerbella, Stefano Rozzi, Giuseppe Luppino
In primates, neural mechanisms for controlling skilled hand actions primarily rely on sensorimotor transformations. These transformations are mediated by circuits linking specific inferior parietal with ventral premotor areas in which sensory coding of objects' features automatically trigger appropriate hand motor programs. Recently, connectional studies in macaques showed that these parietal and premotor areas are nodes of a large-scale cortical network, designated as "lateral grasping network," including specific temporal and prefrontal sectors involved in object recognition and executive functions, respectively...
January 17, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28108198/ted-a-tolerant-edit-distance-for-segmentation-evaluation
#4
Jan Funke, Jonas Klein, Francesc Moreno-Noguer, Albert Cardona, Matthew Cook
In this paper, we present a novel error measure to compare a computer-generated segmentation of images or volumes against ground truth. This measure, which we call Tolerant Edit Distance (TED), is motivated by two observations that we usually encounter in biomedical image processing: (1) Some errors, like small boundary shifts, are tolerable in practice. Which errors are tolerable is application dependent and should be explicitly expressible in the measure. (2) Non-tolerable errors have to be corrected manually...
January 17, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28108126/expert-perspectives-on-time-sensitivity-and-a-related-metric-for-children-involved-in-motor-vehicle-crashes
#5
Andrea N Doud, Samantha L Schoell, Ashley A Weaver, Jennifer W Talton, Ryan T Barnard, John K Petty, J Wayne Meredith, Joel D Stitzel
OBJECTIVE: Advanced Automatic Crash Notification (AACN) uses vehicle telemetry data to predict risk of serious injury among motor vehicle crash occupants and can thus improve the accuracy with which injured children are triaged by first responders. To better define serious injury for AACN systems (which typically use Abbreviated Injury Scale [AIS] metrics), an age-specific approach evaluating severity, time sensitivity (TS), and predictability of injury has been developed. This study outlines the development of the TS score...
January 17, 2017: Academic Pediatrics
https://www.readbyqxmd.com/read/28108082/analysis-of-drugs-of-abuse-in-human-plasma-using-microextraction-by-packed-sorbents-and-ultra-high-performance-liquid-chromatography
#6
P Fernández, M González, M Regenjo, A M Ares, A M Fernández, R A Lorenzo, A M Carro
A miniaturized and simple method based on digitally programmed microextraction by packed sorbent (eVol(®)-MEPS) coupled to ultra-performance liquid chromatography (UPLC) has been developed for quantitative determination of three synthetic cathinones and seven conventional drugs of abuse and metabolites. The influence of several extraction parameters, such as washing and elution solvents were tested. In addition important variables affecting MEPS performance, namely sample volume, sorbent drying time, washing solvent volume, elution volume, number of extraction cycles, sorbent phase and pH, were evaluated using an asymmetrical screening design...
January 16, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28107997/fully-automatic-single-drop-microextraction-with-one-setp-extraction-and-derivatization-and-its-application-for-rapid-analysis-of-hydroxylated-polycyclic-aromatic-hydrocarbons-in-seawaters
#7
Xiaowei Wang, Ying Li, Fengshan Cai, Qing Qing, Ke Yuan, Baowei Chen, Tiangang Luan
A fully automatic single-drop microextraction (SDME) coupled with gas chromatography/mass spectrometry (GC/MS) was developed for the determination of 12 hydroxylated metabolites of polycyclic aromatic hydrocarbons in seawaters. The derivatization reagent was added to the extraction solvent in order to realize one-step extraction and derivatization. High sensitivity of the method could be achieved after several parameters were optimized with the limit of detections (LODs) ranged from 0.33 to 7.50ngL(-1) and RSDs less than 15%...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28107797/emotional-capture-by-fearful-expressions-varies-with-psychopathic-traits
#8
Saz P Ahmed, Sara Hodsoll, Polly Dalton, Catherine L Sebastian
Task-irrelevant emotional expressions are known to capture attention, with the extent of "emotional capture" varying with psychopathic traits in antisocial samples. We investigated whether this variation extends throughout the continuum of psychopathic traits (and co-occurring trait anxiety) in a community sample. Participants (N = 85) searched for a target face among facial distractors. As predicted, angry and fearful faces interfered with search, indicated by slower reaction times relative to neutral faces...
January 20, 2017: Cognition & Emotion
https://www.readbyqxmd.com/read/28107565/idermatopath-a-novel-software-tool-for-mitosis-detection-in-h-e-stained-tissue-sections-of-malignant-melanoma
#9
C Andres, B Andres-Belloni, R Hein, T Biedermann, A Schäpe, N Brieu, R Schönmeyer, M Yigitsoy, J Ring, G Schmidt, N Harder
BACKGROUND: Malignant Melanoma (MM) is characterized by a growing incidence and a high malignant potential. Beside well defined prognostic factors such as tumor thickness and ulceration, the Mitotic Rate (MR) was included in the AJCC recommendations for diagnosis and treatment of MM. In daily routine, the identification of a single mitosis can be difficult on Hematoxylin&Eosin slides alone. Several studies showed a big inter- and intra-individual variability in detecting the MR in MM even by very experienced investigators, thus raising the question for a computer assisted method...
January 20, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28107406/classification-and-segmentation-of-nanoparticle-diffusion-trajectories-in-cellular-micro-environments
#10
Thorsten Wagner, Alexandra Kroll, Chandrashekara R Haramagatti, Hans-Gerd Lipinski, Martin Wiemann
Darkfield and confocal laser scanning microscopy both allow for a simultaneous observation of live cells and single nanoparticles. Accordingly, a characterization of nanoparticle uptake and intracellular mobility appears possible within living cells. Single particle tracking allows to measure the size of a diffusing particle close to a cell. However, within the more complex system of a cell's cytoplasm normal, confined or anomalous diffusion together with directed motion may occur. In this work we present a method to automatically classify and segment single trajectories into their respective motion types...
2017: PloS One
https://www.readbyqxmd.com/read/28107094/dynamic-volume-assessment-of-hepatocellular-carcinoma-in-rat-livers-using-a-clinical-3t-mri-and-novel-segmentation
#11
Lorenzo A Orci, Graziano Oldani, Stephanie Lacotte, Florence Slits, Iris Friedli, Wolfgang Wirth, Christian Toso, Jean-Paul Vallée, Lindsey A Crowe
PURPOSE: In vivo liver cancer research commonly uses rodent models. One of the limitations of such models is the lack of accurate and reproducible endpoints for a dynamic assessment of growing tumor nodules. The aim of this study was to validate a noninvasive, true volume segmentation method using two rat hepatocellular carcinoma (HCC) models, correlating magnetic resonance imaging (MRI) with histological volume measurement, and with blood levels of α-fetoprotein. MATERIALS AND METHODS: We used 3T clinical MRI to quantify tumor volume with follow-up over time...
January 20, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28106857/a-liquid-level-measurement-technique-outside-a-sealed-metal-container-based-on-ultrasonic-impedance-and-echo-energy
#12
Bin Zhang, Yue-Juan Wei, Wen-Yi Liu, Yan-Jun Zhang, Zong Yao, Li-Hui Zhao, Ji-Jun Xiong
The proposed method for measuring the liquid level focuses on the ultrasonic impedance and echo energy inside a metal wall, to which the sensor is attached directly, not on ultrasonic waves that penetrate the gas-liquid medium of a container. Firstly, by analyzing the sound field distribution characteristics of the sensor in a metal wall, this paper proposes the concept of an "energy circle" and discusses how to calculate echo energy under three different states in detail. Meanwhile, an ultrasonic transmitting and receiving circuit is designed to convert the echo energy inside the energy circle into its equivalent electric power...
January 19, 2017: Sensors
https://www.readbyqxmd.com/read/28106853/significant-change-spotting-for-periodic-human-motion-segmentation-of-cleaning-tasks-using-wearable-sensors
#13
Kai-Chun Liu, Chia-Tai Chan
The proportion of the aging population is rapidly increasing around the world, which will cause stress on society and healthcare systems. In recent years, advances in technology have created new opportunities for automatic activities of daily living (ADL) monitoring to improve the quality of life and provide adequate medical service for the elderly. Such automatic ADL monitoring requires reliable ADL information on a fine-grained level, especially for the status of interaction between body gestures and the environment in the real-world...
January 19, 2017: Sensors
https://www.readbyqxmd.com/read/28106849/a-reinforcement-learning-model-equipped-with-sensors-for-generating-perception-patterns-implementation-of-a-simulated-air-navigation-system-using-ads-b-automatic-dependent-surveillance-broadcast-technology
#14
Santiago Álvarez de Toledo, Aurea Anguera, José M Barreiro, Juan A Lara, David Lizcano
Over the last few decades, a number of reinforcement learning techniques have emerged, and different reinforcement learning-based applications have proliferated. However, such techniques tend to specialize in a particular field. This is an obstacle to their generalization and extrapolation to other areas. Besides, neither the reward-punishment (r-p) learning process nor the convergence of results is fast and efficient enough. To address these obstacles, this research proposes a general reinforcement learning model...
January 19, 2017: Sensors
https://www.readbyqxmd.com/read/28106840/a-low-complexity-method-for-two-dimensional-direction-of-arrival-estimation-using-an-l-shaped-array
#15
Qing Wang, Hang Yang, Hua Chen, Yangyang Dong, Laihua Wang
In this paper, a new low-complexity method for two-dimensional (2D) direction-of-arrival (DOA) estimation is proposed. Based on a cross-correlation matrix formed from the L-shaped array, the proposed algorithm obtains the automatic pairing elevation and azimuth angles without eigendecomposition, which can avoid high computational cost. In addition, the cross-correlation matrix eliminates the effect of noise, which can achieve better DOA performance. Then, the theoretical error of the algorithm is analyzed and the Cramer-Rao bound (CRB) for the direction of arrival estimation is derived ...
January 19, 2017: Sensors
https://www.readbyqxmd.com/read/28106793/hybrid-intelligent-system-to-perform-fault-detection-on-bis-sensor-during-surgeries
#16
José-Luis Casteleiro-Roca, José Luis Calvo-Rolle, Juan Albino Méndez Pérez, Nieves Roqueñí Gutiérrez, Francisco Javier de Cos Juez
This paper presents a new fault detection system in hypnotic sensors used for general anesthesia during surgery. Drug infusion during surgery is based on information received from patient monitoring devices; accordingly, faults in sensor devices can put patient safety at risk. Our research offers a solution to cope with these undesirable scenarios. We focus on the anesthesia process using intravenous propofol as the hypnotic drug and employing a Bispectral Index (BIS(TM)) monitor to estimate the patient's unconsciousness level...
January 18, 2017: Sensors
https://www.readbyqxmd.com/read/28106747/design-of-wearable-breathing-sound-monitoring-system-for-real-time-wheeze-detection
#17
Shih-Hong Li, Bor-Shing Lin, Chen-Han Tsai, Cheng-Ta Yang, Bor-Shyh Lin
In the clinic, the wheezing sound is usually considered as an indicator symptom to reflect the degree of airway obstruction. The auscultation approach is the most common way to diagnose wheezing sounds, but it subjectively depends on the experience of the physician. Several previous studies attempted to extract the features of breathing sounds to detect wheezing sounds automatically. However, there is still a lack of suitable monitoring systems for real-time wheeze detection in daily life. In this study, a wearable and wireless breathing sound monitoring system for real-time wheeze detection was proposed...
January 17, 2017: Sensors
https://www.readbyqxmd.com/read/28106608/a-perioperative-systems-design-to-improve-intraoperative-glucose-monitoring-is-associated-with-a-reduction-in-surgical-site-infections-in-a-diabetic-patient-population
#18
Jesse M Ehrenfeld, Jonathan P Wanderer, Maxim Terekhov, Brian S Rothman, Warren S Sandberg
BACKGROUND: Diabetic patients receiving insulin should have periodic intraoperative glucose measurement. The authors conducted a care redesign effort to improve intraoperative glucose monitoring. METHODS: With approval from Vanderbilt University Human Research Protection Program (Nashville, Tennessee), the authors created an automatic system to identify diabetic patients, detect insulin administration, check for recent glucose measurement, and remind clinicians to check intraoperative glucose...
January 19, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28106429/minkowski-flux-vacua-of-type-ii-supergravities
#19
David Andriot, Johan Blåbäck, Thomas Van Riet
We study flux compactifications of 10D type II supergravities to 4D Minkowski space-time, supported by parallel orientifold O_{p} planes with 3≤p≤8. With some geometric restrictions, the 4D Ricci scalar can be written as a negative sum of squares involving Bogomol'nyi-Prasad-Sommerfield-like conditions. Setting all squares to zero provides automatically a solution to 10D equations of motion. This way we characterize a broad class, if not the complete set, of Minkowski flux vacua with parallel orientifolds...
January 6, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28105912/dgw-an-exploratory-data-analysis-tool-for-clustering-and-visualisation-of-epigenomic-marks
#20
Saulius Lukauskas, Roberto Visintainer, Guido Sanguinetti, Gabriele B Schweikert
BACKGROUND: Functional genomic and epigenomic research relies fundamentally on sequencing based methods like ChIP-seq for the detection of DNA-protein interactions. These techniques return large, high dimensional data sets with visually complex structures, such as multi-modal peaks extended over large genomic regions. Current tools for visualisation and data exploration represent and leverage these complex features only to a limited extent. RESULTS: We present DGW, an open source software package for simultaneous alignment and clustering of multiple epigenomic marks...
December 13, 2016: BMC Bioinformatics
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