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https://www.readbyqxmd.com/read/28227504/classification-of-pilot-induced-oscillations-during-in-flight-piloting-exercises-using-dry-eeg-sensor-recordings
#1
Clara A Scholl, Yu Mike Chi, Michael Elconin, William R Gray, Mark A Chevillet, Eric A Pohlmeyer, Clara A Scholl, Yu Mike Chi, Michael Elconin, William R Gray, Mark A Chevillet, Eric A Pohlmeyer, Yu Mike Chi, Mark A Chevillet, William R Gray, Eric A Pohlmeyer, Michael Elconin, Clara A Scholl
Pilot-Induced Oscillations (PIOs) are potentially hazardous piloting phenomena in which a pilot's control-inputs and the aircraft control-responses have (for any of a number of possible reasons) become out of phase. During PIOs, aggressive over-controlling on the part of the pilot in order to overcome a perceived lack of control can lead to complete loss of aircraft control. This study shows data recorded from a Cognionics dry electrode system during actual flight exercises can be used on a second-to-second basis to classify whether a pilot was undergoing a PIO event or if a PIO was imminent...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227482/assessing-app-quality-through-expert-peer-review-a-case-study-from-the-gray-matters-study
#2
Phillip J Hartin, Ian Cleland, Chris D Nugent, Sally I McClean, JoAnn Tschanz, Christine Clark, Maria C Norton, Phillip J Hartin, Ian Cleland, Chris D Nugent, Sally I McClean, JoAnn Tschanz, Christine Clark, Maria C Norton, JoAnn Tschanz, Christine Clark, Ian Cleland, Maria C Norton, Sally I McClean, Chris D Nugent, Phillip J Hartin
Health apps focused on inciting behavior change are becoming increasingly popular. Nevertheless, many lack underlying evidence base, scientific credibility and have limited clinical effectiveness. It is therefore important that apps are well-informed, scientifically credible, peer reviewed and evidence based. This paper presents the use of the Mobile App Rating Scale (MARS) to assess the quality of the Grey Matters app, a cross platform app to deliver health education material and track behavior change across multi-domains with the aim of reducing the risk of developing Alzheimer's disease...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227398/radiomic-analysis-of-multi-contrast-brain-mri-for-the-prediction-of-survival-in-patients-with-glioblastoma-multiforme
#3
Ahmad Chaddad, Christian Desrosiers, Matthew Toews, Ahmad Chaddad, Christian Desrosiers, Matthew Toews, Christian Desrosiers, Ahmad Chaddad, Matthew Toews
Image texture features are effective at characterizing the microstructure of cancerous tissues. This paper proposes predicting the survival times of glioblastoma multiforme (GBM) patients using texture features extracted in multi-contrast brain MRI images. Texture features are derived locally from contrast enhancement, necrosis and edema regions in T1-weighted post-contrast and fluid-attenuated inversion-recovery (FLAIR) MRIs, based on the gray-level co-occurrence matrix representation. A statistical analysis based on the Kaplan-Meier method and log-rank test is used to identify the texture features related with the overall survival of GBM patients...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227383/an-empirical-study-of-parallel-solutions-for-glcm-calculation-of-diffraction-images
#4
John Dixon, Junhua Ding, John Dixon, Junhua Ding, Junhua Ding, John Dixon
Feature calculation of large amount of images is time consuming. The GPU based CUDA framework offers an affordable solution for calculating image features in parallel. The research focused on an empirical study of different implementations of a general-purpose GPU-based solution for calculating Gray-Level Co-occurrence Matrices (GLCM) and associated features of diffraction images of biological cells. The GLCM features calculated from the diffraction images are used for rapid cell classification with the machine learning algorithm Support Vector Machine (SVM)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226733/association-between-tumor-heterogeneity-and-progression-free-survival-in-non-small-cell-lung-cancer-patients-with-egfr-mutations-undergoing-tyrosine-kinase-inhibitors-therapy
#5
Jiangdian Song, Di Dong, Yanqi Huang, Yali Zang, Zaiyi Liu, Jie Tian, Jiangdian Song, Di Dong, Yanqi Huang, Yali Zang, Zaiyi Liu, Jie Tian, Zaiyi Liu, Yanqi Huang, Yali Zang, Jiangdian Song, Jie Tian, Di Dong
For non-small cell lung cancer (NSCLC) patients with epidermal growth factor receptor (EGFR) mutations, current staging methods do not accurately predict the risk of disease recurrence after tyrosine kinase inhibitors (TKI) therapy. Developing a noninvasive method to predict whether individual could benefit from TKI therapy has great clinical significance. In this research, a radiomics approach was proposed to determine whether the tumor heterogeneity of NSCLC, which was measured by the texture on computed tomography (CT), could make an independent prediction of progression-free survival (PFS)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226710/quantitative-analysis-of-histological-tissue-image-based-on-cytological-profiles-and-spatial-statistics
#6
Young Hwan Chang, Guillaume Thibault, Vahid Azimi, Brett Johnson, Danielle Jorgens, Jason Link, Adam Margolin, Joe W Gray, Young Hwan Chang, Guillaume Thibault, Vahid Azimi, Brett Johnson, Danielle Jorgens, Jason Link, Adam Margolin, Joe W Gray, Danielle Jorgens, Brett Johnson, Adam Margolin, Young Hwan Chang, Vahid Azimi, Jason Link, Joe W Gray, Guillaume Thibault
The cellular heterogeneity and complex tissue architecture of most tumor samples is a major obstacle in image analysis on standard hematoxylin and eosin-stained (H&E) tissue sections. A mixture of cancer and normal cells complicates the interpretation of their cytological profiles. Furthermore, spatial arrangement and architectural organization of cells are generally not reflected in cellular characteristics analysis. To address these challenges, first we describe an automatic nuclei segmentation of H&E tissue sections...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225963/hemosiderotic-dermatofibroma
#7
Delky Johanna Villarreal Villarreal, Aline Tanus Luz, Alice Mota Buçard, Luciana de Abreu, Tullia Cuzzi
We report a rare clinical case of hemosiderotic dermatofibroma in a 36-year-old female patient. The main dermatoscopic finding was represented by homogeneous blue-gray pigmentation. The aim of this report is to demonstrate the rarity of the lesion and the dermatoscopic importance it assumes by sharing a blue-gray homogeneous pattern with other benign and malignant lesions.
January 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28225708/medical-male-circumcision-coverage-in-rakai-uganda
#8
Xiangrong Kong, Godfrey Kigozi, Joseph Ssekasanvu, Fred Nalugoda, Gertrude Nakigozi, Larry W Chang, Carl Latkin, David Serwadda, Maria J Wawer, Ronald H Gray
We assessed medical male circumcision (MMC) scale-up in Rakai, Uganda using population-based surveys during 2007-2014. MMC coverage increased from 28.5 to 52.0%. Coverage was initially lower in 15-19-year-olds but increased in 2014, was higher in married men and in trading communities, and lowest in the sexually inactive. Coverage did not vary by self-perceived risk of HIV or HIV serostatus. Increasing generalized coverage suggested that MMC became normative, but coverage falls short of WHO/Joint United Nations Programme on HIV and AIDS (UNAIDS) 80% targets, indicating the need for demand generation...
March 13, 2017: AIDS
https://www.readbyqxmd.com/read/28224982/corrigendum-siks-control-osteocyte-responses-to-parathyroid-hormone
#9
Marc N Wein, Yanke Liang, Olga Goransson, Thomas B Sundberg, Jinhua Wang, Elizabeth A Williams, Maureen J O'Meara, Nicolas Govea, Belinda Beqo, Shigeki Nishimori, Kenichi Nagano, Daniel J Brooks, Janaina S Martins, Braden Corbin, Anthony Anselmo, Ruslan Sadreyev, Joy Y Wu, Kei Sakamoto, Marc Foretz, Ramnik J Xavier, Roland Baron, Mary L Bouxsein, Thomas J Gardella, Paola Divieti-Pajevic, Nathanael S Gray, Henry M Kronenberg
No abstract text is available yet for this article.
February 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28224630/the-current-status-of-human-laryngeal-transplantation-in-2017-a-state-of-the-field-review
#10
REVIEW
Giri Krishnan, Charles Du, Jonathan M Fishman, Andrew Foreman, David G Lott, Gregory Farwell, Peter Belafsky, Suren Krishnan, Martin A Birchall
OBJECTIVES: Human laryngeal allotransplantation has long been contemplated as a surgical option following laryngectomy, but there is a paucity of information regarding the indications, surgical procedure, and patient outcomes. Our objectives were to identify all human laryngeal allotransplants that have been undertaken and reported in the English literature and to evaluate the success of the procedure. DATA SOURCES: MEDLINE, Embase, Current Index to Nursing and Allied Health Literature, Web of Science and Scopus, and the Gray literature...
February 22, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28223243/on-the-verge-of-a-respiratory-type-panic-attack-selective-activations-of-rostrolateral-and-caudoventrolateral-periaqueductal-gray-matter-following-short-lasting-escape-to-a-low-dose-of-potassium-cyanide
#11
Cláudia Janaina Torres Müller, Jeyce Willig Quintino-Dos-Santos, Fagna Giacomin Schimitel, Sérgio Tufik, Vanessa Beijamini, Newton Sabino Canteras, Luiz Carlos Schenberg
Intravenous injections of potassium cyanide (KCN) both elicit escape by its own and facilitate escape to electrical stimulation of the periaqueductal gray matter (PAG). Moreover, whereas the KCN-evoked escape is potentiated by CO2, it is suppressed by both lesions of PAG and clinically-effective treatments with panicolytics. These and other data suggest that the PAG harbors a hypoxia-sensitive alarm system which activation could both precipitate panic and render the subject hypersensitive to CO2. Although prior c-Fos immunohistochemistry studies reported widespread activations of PAG following KCN injections, the employment of repeated injections of high doses of KCN (>60 µg) in anesthetized rats compromised both the localization of KCN-responsive areas and their correlation with escape behavior...
February 18, 2017: Neuroscience
https://www.readbyqxmd.com/read/28222815/cognitive-stimulation-therapy-as-a-sustainable-intervention-for-dementia-in-sub-saharan-africa-feasibility-and-clinical-efficacy-using-a-stepped-wedge-design
#12
Stella-Maria Paddick, Sarah Mkenda, Godfrey Mbowe, Aloyce Kisoli, William K Gray, Catherine L Dotchin, Laura Ternent, Adesola Ogunniyi, John Kissima, Olaide Olakehinde, Declare Mushi, Richard W Walker
BACKGROUND: Cognitive stimulation therapy (CST) is a psychosocial group-based intervention for dementia shown to improve cognition and quality of life with a similar efficacy to cholinesterase inhibitors. Since CST can be delivered by non-specialist healthcare workers, it has potential for use in low-resource environments, such as sub-Saharan Africa (SSA). We aimed to assess the feasibility and clinical effectiveness of CST in rural Tanzania using a stepped-wedge design. METHODS: Participants and their carers were recruited through a community dementia screening program...
February 22, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28222798/fracture-risk-in-dialysis-and-kidney-transplanted-patients-a-protocol-for-systematic-review-and-meta-analysis
#13
Aboubacar Sidibé, Lynne Moore, Sonia Jean, Fabrice Mac-Way
BACKGROUND: Chronic kidney disease (CKD) is associated with an increased risk of fracture and cardiovascular mortality. The risk of fracture in hemodialysis (HD), peritoneal dialysis (PD), and kidney transplantation (KT) is higher when compared to the general population. However, uncertainties remain about which group has the highest risk of fracture. We aim to identify the risk of fracture and cardiovascular mortality post-fracture in HD compared to PD or KT and in PD compared to KT population...
February 22, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28222136/cardiac-strength-interval-curves-calculated-using-a-bidomain-tissue-with-a-parsimonious-ionic-current
#14
Suran K Galappaththige, Richard A Gray, Bradley J Roth
The strength-interval curve plays a major role in understanding how cardiac tissue responds to an electrical stimulus. This complex behavior has been studied previously using the bidomain formulation incorporating the Beeler-Reuter and Luo-Rudy dynamic ionic current models. The complexity of these models renders the interpretation and extrapolation of simulation results problematic. Here we utilize a recently developed parsimonious ionic current model with only two currents-a sodium current that activates rapidly upon depolarization INa and a time-independent inwardly rectifying repolarization current IK-which reproduces many experimentally measured action potential waveforms...
2017: PloS One
https://www.readbyqxmd.com/read/28220972/quantitative-distinction-of-the-morphological-characteristic-of-erythrocyte-precursor-cells-with-texture-analysis-using-gray-level-co-occurrence-matrix
#15
Keigo Kono, Ruka Hayata, Satoru Murakami, Mai Yamamoto, Maiko Kuroki, Kana Nanato, Kazuto Takahashi, Keiko Miwa, Yutaka Tsutsumi, Kazunori Okada, Sanae Kaga, Taisei Mikami, Nobuo Masauzi
BACKGROUND: Morphological characteristics of blood cells are still qualitatively defined. So a texture analysis (Tx) method using gray level co-occurrence matrices (GLCMs; CM-Tx method) was applied to images of erythrocyte precursor cells (EPCs) for quantitatively distinguishing four types of EPC stages: proerythroblast, basophilic erythroblast, polychromatic erythroblast, and orthochromatic erythroblast. METHODS: Fifty-five images of four types of EPCs were downloaded from an atlas uploaded by the Blood Cell Morphology Standardization Subcommittee (BCMSS) of the Japanese Society of Laboratory Hematology (JSLH)...
February 21, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28220903/application-of-carbohydrate-arrays-coupled-with-mass-spectrometry-to-detect-activity-of-plant-polysaccharide-degradative-enzymes-from-the-fungus-aspergillus-niger
#16
Jolanda M van Munster, Baptiste Thomas, Michel Riese, Adrienne L Davis, Christopher J Gray, David B Archer, Sabine L Flitsch
Renewables-based biotechnology depends on enzymes to degrade plant lignocellulose to simple sugars that are converted to fuels or high-value products. Identification and characterization of such lignocellulose degradative enzymes could be fast-tracked by availability of an enzyme activity measurement method that is fast, label-free, uses minimal resources and allows direct identification of generated products. We developed such a method by applying carbohydrate arrays coupled with MALDI-ToF mass spectrometry to identify reaction products of carbohydrate active enzymes (CAZymes) of the filamentous fungus Aspergillus niger...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220826/different-brain-structures-associated-with-artistic-and-scientific-creativity-a-voxel-based-morphometry-study
#17
Baoguo Shi, Xiaoqing Cao, Qunlin Chen, Kaixiang Zhuang, Jiang Qiu
Creativity is the ability to produce original and valuable ideas or behaviors. In real life, artistic and scientific creativity promoted the development of human civilization; however, to date, no studies have systematically investigated differences in the brain structures responsible for artistic and scientific creativity in a large sample. Using voxel-based morphometry (VBM), this study identified differences in regional gray matter volume (GMV) across the brain between artistic and scientific creativity (assessed by the Creative Achievement Questionnaire) in 356 young, healthy subjects...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220649/good-to-great-tavr-tackles-stroke-risk
#18
EDITORIAL
Justin Pelberg, William A Gray
No abstract text is available yet for this article.
February 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28220403/dosimetry-in-mars-spectral-ct-topas-monte-carlo-simulations-and-ion-chamber-measurements
#19
Gray Lu, Steven Marsh, Jerome Damet, Pierre Carbonez, John Laban, Christopher Bateman, Anthony Butler, Phil Butler
Spectral computed tomography (CT) is an up and coming imaging modality which shows great promise in revealing unique diagnostic information. Because this imaging modality is based on X-ray CT, it is of utmost importance to study the radiation dose aspects of its use. This study reports on the implementation and evaluation of a Monte Carlo simulation tool using TOPAS for estimating dose in a pre-clinical spectral CT scanner known as the MARS scanner. Simulated estimates were compared with measurements from an ionization chamber...
February 20, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28220095/don-t-lose-your-brain-at-work-the-role-of-recurrent-novelty-at-work-in-cognitive-and-brain-aging
#20
Jan Oltmanns, Ben Godde, Axel H Winneke, Götz Richter, Claudia Niemann, Claudia Voelcker-Rehage, Klaus Schömann, Ursula M Staudinger
Cognitive and brain aging is strongly influenced by everyday settings such as work demands. Long-term exposure to low job complexity, for instance, has detrimental effects on cognitive functioning and regional gray matter (GM) volume. Brain and cognition, however, are also characterized by plasticity. We postulate that the experience of novelty (at work) is one important trigger of plasticity. We investigated the cumulative effect of recurrent exposure to work-task changes (WTC) at low levels of job complexity on GM volume and cognitive functioning of middle-aged production workers across a time window of 17 years...
2017: Frontiers in Psychology
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