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https://www.readbyqxmd.com/read/28227574/automatic-sleep-stage-classification-using-ear-eeg
#1
Andreas Stochholm, Kaare Mikkelsen, Preben Kidmose, Andreas Stochholm, Kaare Mikkelsen, Preben Kidmose, Kaare Mikkelsen, Preben Kidmose, Andreas Stochholm
Sleep assessment is of great importance in the diagnosis and treatment of sleep disorders. In clinical practice this is typically performed based on polysomnography recordings and manual sleep staging by experts. This procedure has the disadvantages that the measurements are cumbersome, may have a negative influence on the sleep, and the clinical assessment is labor intensive. Addressing the latter, there has recently been encouraging progress in the field of automatic sleep staging [1]. Furthermore, a minimally obtrusive method for recording EEG from electrodes in the ear (ear-EEG) has recently been proposed [2]...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227553/transfer-learning-with-large-scale-data-in-brain-computer-interfaces
#2
Chun-Shu Wei, Yuan-Pin Lin, Yu-Te Wang, Chin-Teng Lin, Tzyy-Ping Jung, Chun-Shu Wei, Yuan-Pin Lin, Yu-Te Wang, Chin-Teng Lin, Tzyy-Ping Jung, Yuan-Pin Lin, Yu-Te Wang, Tzyy-Ping Jung, Chin-Teng Lin, Chun-Shu Wei
Human variability in electroencephalogram (EEG) poses significant challenges for developing practical real-world applications of brain-computer interfaces (BCIs). The intuitive solution of collecting sufficient user-specific training/calibration data can be very labor-intensive and time-consuming, hindering the practicability of BCIs. To address this problem, transfer learning (TL), which leverages existing data from other sessions or subjects, has recently been adopted by the BCI community to build a BCI for a new user with limited calibration data...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227462/auto-adjusting-mandibular-repositioning-device-for-in-home-use
#3
R Brugarolas, J M Valero-Sarmiento, A Bozkurt, G K Essick, R Brugarolas, J M Valero-Sarmiento, A Bozkurt, G K Essick, J M Valero-Sarmiento, G K Essick, R Brugarolas, A Bozkurt
Obstructive Sleep Apnea (OSA) is a form of respiratory dysfunction that affects 20% of adults in the world. Among the first-line treatments that are used to mitigate the effects of OSA are continuous positive airway pressure (CPAP) and mandibular repositioning devices (MRD). Although CPAP provides a more efficacious therapy than MRDs, recent studies suggest that both are comparable in overall effectiveness due to greater patient preference and adherence to MRD therapy. In this paper, we present the Auto-Positioner, a novel add-on for MRDs that adjusts the extent to which the mandible (lower jaw) is advanced in response to respiratory signals indicating labored breathing during sleep, and to changes in sleeping position known to affect individual patient's airway patency...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227433/microprinted-tumor-spheroids-enable-anti-cancer-drug-screening
#4
Pradip S Thakuri, Stephanie L Ham, Hossein Tavana, Pradip S Thakuri, Stephanie L Ham, Hossein Tavana, Stephanie L Ham, Hossein Tavana
Spheroids present a biologically relevant model of avascular tumors and a unique tool for discovery of anti-cancer drugs. Despite being used in research laboratories for several decades, spheroids are not routinely used for drug discovery primarily due to the difficulty of mass-producing uniformly-sized spheroids and intense labor involved in handling, drug treatment, and analyzing them. We overcome this barrier using a novel technology to robotically microprint spheroids in standard 384-well plates. An aqueous drop containing cancer cells is dispensed into a bath of a second, immiscible aqueous phase...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227288/baseline-fetal-heart-rate-analysis-eleven-automatic-methods-versus-expert-consensus
#5
Agathe Houze de l'Aulnoit, Samuel Boudet, Romain Demailly, Laurent Peyrodie, Regis Beuscart, Denis Houze de l'Aulnoit, Agathe Houze de l'Aulnoit, Samuel Boudet, Romain Demailly, Laurent Peyrodie, Regis Beuscart, Denis Houze de l'Aulnoit, Regis Beuscart, Laurent Peyrodie, Romain Demailly, Samuel Boudet
Visual analysis of fetal heart rate (FHR) during labor is subject to inter- and intra-observer variability that is particularly troublesome for anomalous recordings. Automatic FHR analysis has been proposed as a promising way to reduce this variability. The major difficulty with automatic analysis is to determine the baseline from which accelerations and decelerations will be detected. Eleven methods for automatic FHR analysis were reprogrammed using description from the literature and applied to 66 FHR recordings collected during the first stage of delivery...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227137/selective-heart-rate-variability-analysis-to-account-for-uterine-activity-during-labor-and-improve-classification-of-fetal-distress
#6
G J J Warmerdam, R Vullings, J O E H Van Laar, M B Van der Hout-Van der Jagt, J W M Bergmans, L Schmitt, S G Oei, G J J Warmerdam, R Vullings, J O E H Van Laar, M B Van der Hout-Van der Jagt, J W M Bergmans, L Schmitt, S G Oei, M B Van Der Hout-Van Der Jagt, R Vullings, S G Oei, J O E H Van Laar, J W M Bergmans, G J J Warmerdam, L Schmitt
Cardiotocography (CTG) is currently the most often used technique for detection of fetal distress. Unfortunately, CTG has a poor specificity. Recent studies suggest that, in addition to CTG, information on fetal distress can be obtained from analysis of fetal heart rate variability (HRV). However, uterine contractions can strongly influence fetal HRV. The aim of this study is therefore to investigate whether HRV analysis for detection of fetal distress can be improved by distinguishing contractions from rest periods...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226676/quantitative-evaluation-of-alveolar-bone-resorption-on-dental-panoramic-radiographs-by-standardized-dentition-image-transformation-and-probability-estimation
#7
Chisako Muramtsu, Ryo Takahashi, Tatsuro Hayashi, Takeshi Hara, Tatsumasa Fukui, Akitoshi Katsumata, Hiroshi Fujita, Chisako Muramtsu, Ryo Takahashi, Tatsuro Hayashi, Takeshi Hara, Tatsumasa Fukui, Akitoshi Katsumata, Hiroshi Fujita, Akitoshi Katsumata, Ryo Takahashi, Tatsuro Hayashi, Takeshi Hara, Chisako Muramtsu, Tatsumasa Fukui, Hiroshi Fujita
Alveolar bone resorption, which can be observed on dental panoramic radiographs (DPRs), is one of the most important signs of the progression of periodontal disease. However, quantitative and consistent evaluation of alveolar bone resorption is labor intense, because of a large number of DPR examinations performed each year. In our previous study, we developed an automated scheme for detection of three lines, corresponding to an occlusion line, an alveolar line and a root apex line, to measure the alveolar bone ratio (ABR), which may be useful to dentists in early detection of periodontal disease...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226644/examining-the-effect-of-mgso4-on-sharp-wave-transient-activity-in-the-hypoxic-ischemic-fetal-sheep-model
#8
Meherzad J Lakadia, Hamid Abbasi, Alistair J Gunn, Charles P Unsworth, Laura Bennet, Meherzad J Lakadia, Hamid Abbasi, Alistair J Gunn, Charles P Unsworth, Laura Bennet, Laura Bennet, Hamid Abbasi, Alistair J Gunn, Meherzad J Lakadia, Charles P Unsworth
Hypoxic-ischemic encephalopathy (HIE) due to lack of oxygen is a debilitating disorder experienced by a significant number of preterm infants during birth. Studies show that the brain undergoes different phases of injury following hypoxic insult, but the first 6-8 hours (known as a latent phase) are the key to treatment efficacy. Cerebral hypothermia is one known treatment, and for it to be effective it must be started during the latent phase and continued for several days. In order to determine the effectiveness of treatment it is important to pinpoint the time of insult...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226619/application-of-semi-supervised-deep-learning-to-lung-sound-analysis
#9
Daniel Chamberlain, Rahul Kodgule, Daniela Ganelin, Vivek Miglani, Richard Ribon Fletcher, Daniel Chamberlain, Rahul Kodgule, Daniela Ganelin, Vivek Miglani, Richard Ribon Fletcher, Vivek Miglani, Daniel Chamberlain, Richard Ribon Fletcher, Rahul Kodgule, Daniela Ganelin
The analysis of lung sounds, collected through auscultation, is a fundamental component of pulmonary disease diagnostics for primary care and general patient monitoring for telemedicine. Despite advances in computation and algorithms, the goal of automated lung sound identification and classification has remained elusive. Over the past 40 years, published work in this field has demonstrated only limited success in identifying lung sounds, with most published studies using only a small numbers of patients (typically N<;20) and usually limited to a single type of lung sound...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226597/a-node-wise-analysis-of-the-uterine-muscle-networks-for-pregnancy-monitoring
#10
N Nader, M Hassan, W Falou, C Marque, M Khalil, N Nader, M Hassan, W Falou, C Marque, M Khalil, M Khalil, W Falou, C Marque, M Hassan, N Nader
The recent past years have seen a noticeable increase of interest in the correlation analysis of electrohysterographic (EHG) signals in the perspective of improving the pregnancy monitoring. Here we propose a new approach based on the functional connectivity between multichannel (4×4 matrix) EHG signals recorded from the women's abdomen. The proposed pipeline includes i) the computation of the statistical couplings between the multichannel EHG signals, ii) the characterization of the connectivity matrices, computed by using the imaginary part of the coherence, based on the graph-theory analysis and iii) the use of these measures for pregnancy monitoring...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226576/fetal-facial-standard-plane-recognition-via-very-deep-convolutional-networks
#11
Zhen Yu, Dong Ni, Siping Chen, Shengli Li, Tianfu Wang, Baiying Lei, Zhen Yu, Dong Ni, Siping Chen, Shengli Li, Tianfu Wang, Baiying Lei, Siping Chen, Tianfu Wang, Dong Ni, Shengli Li, Zhen Yu, Baiying Lei
The accurate recognition of fetal facial standard plane (FFSP) (i.e., axial, coronal and sagittal plane) from ultrasound (US) images is quite essential for routine US examination. Since the labor-intensive and subjective measurement is too time-consuming and unreliable, the development of the automatic FFSP recognition method is highly desirable. Different from the previous methods, we leverage a general framework to recognize the FFSP from US images automatically. Specifically, instead of using the previous hand-crafted visual features, we utilize the recent developed deep learning approach via very deep convolutional networks (DCNN) architecture to represent fine-grained details of US image...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226203/characteristic-changes-in-decidual-gene-expression-signature-in-spontaneous-term-parturition
#12
Haidy El-Azzamy, Andrea Balogh, Roberto Romero, Yi Xu, Christopher LaJeunesse, Olesya Plazyo, Zhonghui Xu, Theodore G Price, Zhong Dong, Adi L Tarca, Zoltan Papp, Sonia S Hassan, Tinnakorn Chaiworapongsa, Chong Jai Kim, Nardhy Gomez-Lopez, Nandor Gabor Than
Background: The decidua has been implicated in the "terminal pathway" of human term parturition, which is characterized by the activation of pro-inflammatory pathways in gestational tissues. However, the transcriptomic changes in the decidua leading to terminal pathway activation have not been systematically explored. This study aimed to compare the decidual expression of developmental signaling and inflammation-related genes before and after spontaneous term labor in order to reveal their involvement in this process...
February 22, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28226053/social-representations-of-fishermen-with-spinal-cord-injury-impacts-and-life-trajectory
#13
Eliane Santos Cavalcante, João Mário Pessoa, Izaura Luzia Silvério Freire, Cleonice Andréa Alves Cavalcante, Francisco Arnoldo Nunes de Miranda
Objective: analyze social representations in the life trajectory of artisanal fishermen with spinal cord injury caused by diving on the north coast of Rio Grande do Norte. Method: a descriptive, qualitative study was conducted with 31 fishermen between October 2013 and August 2014, using a semi-structured interview. A lexicographic analysis and descending hierarchical classification of texts were performed (with software ALCESTE), in the perspective of the social representations...
January 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/28225946/the-intellectual-developmental-disorders-mexico-study-situational-diagnosis-burden-genomics-and-intervention-proposal
#14
Eduardo Lazcano-Ponce, Gregorio Katz, Rocío Rodríguez-Valentín, Filipa de Castro, Betania Allen-Leigh, María Elena Márquez-Caraveo, Miguel Ángel Ramírez-García, Eduardo Arroyo-García, María Elena Medina-Mora, Gustavo Ángeles, José Edmundo Urquieta-Salomón, Luis Salvador-Carulla
Objective: This study aims to generate evidence on intellectual development disorders (IDD) in Mexico. Materials and methods: IDD disease burden will be estimated with a probabilistic model, using population-based surveys. Direct and indirect costs of catastrophic expenses of families with a member with an IDD will be evaluated. Genomic characterization of IDD will include: sequencing participant exomes and performing bioinformatics analyses to identify de novo or inherited variants through trio analysis; identifying genetic variants associated with IDD, and validating randomly selected variants by polymerase chain reaction (PCR) and sequencing or real-time quantitative PCR (qPCR)...
November 2016: Salud Pública de México
https://www.readbyqxmd.com/read/28224641/trends-in-volunteer-mentoring-in-the-united-states-analysis-of-a-decade-of-census-survey-data
#15
Elizabeth B Raposa, Nathan Dietz, Jean E Rhodes
Over the past decade, considerable resources have been devoted to recruiting volunteer mentors and expanding mentoring programs. It is unclear whether these efforts have helped to counter the broader national trends of declining volunteer rates. The current study uses data from the Volunteering Supplement of the Current Population Survey (CPS), sponsored by the U.S. Census Bureau and U.S. Bureau of Labor Statistics, to explore population-level trends in mentoring over the past decade. Results suggest that mentoring rates have remained relatively stable over the past decade, but that the population of mentors has changed somewhat in terms of age, ethnicity, educational background, and region of the United States...
February 22, 2017: American Journal of Community Psychology
https://www.readbyqxmd.com/read/28223522/conformational-dynamics-of-a-neurotransmitter-sodium-symporter-in-a-lipid-bilayer
#16
Suraj Adhikary, Daniel J Deredge, Anu Nagarajan, Lucy R Forrest, Patrick L Wintrode, Satinder K Singh
Neurotransmitter:sodium symporters (NSSs) are integral membrane proteins responsible for the sodium-dependent reuptake of small-molecule neurotransmitters from the synaptic cleft. The symporters for the biogenic amines serotonin (SERT), dopamine (DAT), and norepinephrine (NET) are targets of multiple psychoactive agents, and their dysfunction has been implicated in numerous neuropsychiatric ailments. LeuT, a thermostable eubacterial NSS homolog, has been exploited as a model protein for NSS members to canvass the conformational mechanism of transport with a combination of X-ray crystallography, cysteine accessibility, and solution spectroscopy...
February 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28222716/assessing-the-feasibility-of-introducing-health-insurance-in-afghanistan-a-qualitative-stakeholder-analysis
#17
Wu Zeng, Christine Kim, Lauren Archer, Omarzaman Sayedi, Mohammad Yousuf Jabarkhil, Kathleen Sears
BACKGROUND: In the last decade, the health status of Afghans has improved drastically. However, the health financing system in Afghanistan remains fragile due to high out-of-pocket spending and reliance on donor funding. To address the country's health financing challenges, the Ministry of Public Health investigated health insurance as a mechanism to mobilize resources for health. This paper presents stakeholders' opinions on seven preconditions of implementing this approach, as their understanding and buy-in to such an approach will determine its success...
February 22, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28222704/duration-of-second-stage-of-labor-and-instrumental-delivery-as-risk-factors-for-severe-perineal-lacerations-population-based-study
#18
Marija Simic, Sven Cnattingius, Gunnar Petersson, Anna Sandström, Olof Stephansson
BACKGROUND: We sought to investigate the impact of the duration of second stage of labor on risk of severe perineal lacerations (third and fourth degree). METHODS: This population based cohort study was conducted in the Stockholm/Gotland region, Sweden, 2008-2014. Study population included 52 211 primiparous women undergoing vaginal delivery with cephalic presentation at term. Unconditional logistic regression analysis was used to calculate crude and adjusted odds ratios (OR), using 95% confidence intervals (CI)...
February 21, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28222458/purls-steroids-during-late-preterm-labor-better-later-than-never
#19
REVIEW
Corey Lyon, Jennifer K Bello
Steroids--even when administered in the last leg of the late preterm period--still reduce the likelihood of respiratory complications in newborns.
February 2017: Journal of Family Practice
https://www.readbyqxmd.com/read/28222431/the-routine-use-of-intrapartum-ultrasound-in-clinical-decision-making-during-the-second-stage-of-labor-does-it-have-any-impact-on-delivery-outcomes
#20
Oren Barak, Roni Levy, Orna Flidel, Svetlana Zaks, Moshe Gillor, Zion Hagay, Edi Vaisbuch
BACKGROUND/AIMS: The study aimed to assess whether the use of intrapartum transperineal ultrasound (US) can reduce the rate of failed vacuum extraction (VE). METHODS: This is a retrospective cohort study including all women delivering at term with the diagnosis of protracted second stage of labor. The mode of delivery and rate of failed VE were compared between women who underwent a US examination prior to the decision on obstetrical interventions ("+US" group) and those in whom clinical decisions were based upon digital assessment only ("no-US" group)...
February 22, 2017: Gynecologic and Obstetric Investigation
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