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https://www.readbyqxmd.com/read/28726517/robot-assisted-tumor-resection-devices
#1
Yutaka Saito, Kazuki Sumiyama, Philip Wai Yan
In Japan, colorectal endoscopic submucosal dissection (ESD) is being conducted safely and effectively as shown by the increased number of the cases, however, it is still regarded as a complicated and challenging procedure. Therefore, piecemeal endoscopic mucosal resection (p-EMR) is still regarded as an appropriate treatment, rather than ESD for large colorectal tumors, especially in Western countries. Areas covered: There are several factors that are responsible for colorectal ESD difficulty. Firstly, there is no adequate traction or counter-traction in colorectal ESD...
July 20, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28717674/exactly-zero-or-once-a-clinically-helpful-guide-to-assessing-genetic-variants-in-mild-epilepsies
#2
Caitlin A Bennett, Slavé Petrovski, Karen L Oliver, Samuel F Berkovic
OBJECTIVE: To assist the interpretation of genomic data for common epilepsies, we asked whether variants implicated in mild epilepsies in autosomal dominant families are present in the general population. METHODS: We studied 12 genes for the milder epilepsies and identified published variants with strong segregation support (de novo germline mutation or ≥4 affected family members). These variants were checked in the Exome Aggregation Consortium (ExAC), a database of genetic variation in over 60,000 individuals...
August 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28708842/evaluating-whole-genome-sequence-data-from-the-genetic-absence-epilepsy-rat-from-strasbourg-and-its-related-non-epileptic-strain
#3
Pablo M Casillas-Espinosa, Kim L Powell, Mingfu Zhu, C Ryan Campbell, Jessica M Maia, Zhong Ren, Nigel C Jones, Terence J O'Brien, Slavé Petrovski
OBJECTIVE: The Genetic Absence Epilepsy Rats from Strasbourg (GAERS) are an inbreed Wistar rat strain widely used as a model of genetic generalised epilepsy with absence seizures. As in humans, the genetic architecture that results in genetic generalized epilepsy in GAERS is poorly understood. Here we present the strain-specific variants found among the epileptic GAERS and their related Non-Epileptic Control (NEC) strain. The GAERS and NEC represent a powerful opportunity to identify neurobiological factors that are associated with the genetic generalised epilepsy phenotype...
2017: PloS One
https://www.readbyqxmd.com/read/28698594/semantic-congruent-audiovisual-integration-during-the-encoding-stage-of-working-memory-an-erp-and-sloreta-study
#4
Yuanjun Xie, Yuanyuan Xu, Chen Bian, Min Li
Although multisensory integration is an inherent component of functional brain organization, multisensory integration during working memory (WM) has attracted little attention. The present study investigated the neural properties underlying the multisensory integration of WM by comparing semantically related bimodal stimulus presentations with unimodal stimulus presentations and analysing the results using the standardized low-resolution brain electromagnetic tomography (sLORETA) source location approach. The results showed that the memory retrieval reaction times during congruent audiovisual conditions were faster than those during unisensory conditions...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28675593/analysis-of-admixture-proportions-in-seven-geographical-regions-of-the-state-of-guerrero-mexico
#5
José Ángel Cahua-Pablo, Miguel Cruz, Pedro Vidal Tello-Almaguer, Luz Carmen Del Alarcón-Romero, Esteban Juan Parra, Salvador Villerías-Salinas, Adán Valladares-Salgado, Vianet Argelia Tello-Flores, Abigail Méndez-Palacios, Claudia Paola Pérez-Macedonio, Eugenia Flores-Alfaro
OBJECTIVE: Mexico's current population structure has been defined by admixture between European, Native American, and to some extent African, groups that started in the sixteenth century. The aim of this research was to analyze the relative contributions of these continental population groups to the seven regions of the state of Guerrero, Mexico. METHODS: A total of 104 ancestry informative markers were analyzed in 480 unrelated women from the seven regions of the state of Guerrero...
July 4, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/28669415/global-disparities-in-maternal-morbidity-and-mortality
#6
Maria J Small, Terrence K Allen, Haywood L Brown
The disparity in maternal mortality for African American women remains one of the greatest public health inequities in the United States (US). To better understand approaches toward amelioration of these differences, we examine settings with similar disparities in maternal mortality and "near misses" based on race/ethnicity. This global analysis of disparities in maternal mortality/morbidity will focus on middle- and high-income countries (based on World Bank definitions) with multiethnic populations. Many countries with similar histories of slavery and forced migration demonstrate disparities in health outcomes based on social determinants such as race/ethnicity...
June 29, 2017: Seminars in Perinatology
https://www.readbyqxmd.com/read/28638406/an-html5-based-pure-website-solution-for-rapidly-viewing-and-processing-large-scale-3d-medical-volume-reconstruction-on-mobile-internet
#7
Liang Qiao, Xin Chen, Ye Zhang, Jingna Zhang, Yi Wu, Ying Li, Xuemei Mo, Wei Chen, Bing Xie, Mingguo Qiu
This study aimed to propose a pure web-based solution to serve users to access large-scale 3D medical volume anywhere with good user experience and complete details. A novel solution of the Master-Slave interaction mode was proposed, which absorbed advantages of remote volume rendering and surface rendering. On server side, we designed a message-responding mechanism to listen to interactive requests from clients (Slave model) and to guide Master volume rendering. On client side, we used HTML5 to normalize user-interactive behaviors on Slave model and enhance the accuracy of behavior request and user-friendly experience...
2017: International Journal of Telemedicine and Applications
https://www.readbyqxmd.com/read/28623099/consensus-statement-on-definitions-and-nomenclature-for-robotic-thoracic-surgery
#8
Robert Cerfolio, Brian E Louie, Alexander S Farivar, Mark Onaitis, Bernard J Park
OBJECTIVES: Robotic thoracic operations are increasing, and new robotic systems are imminent. A definition of what constitutes a robotic thoracic operation and a nomenclature to detail the technique used is needed to accurately compare outcomes. METHODS: The American Association of Thoracic Surgeons Guideline Committee appointed an expert consensus writing committee to construct definitions and nomenclature for robotic thoracic surgery. A PubMed search was generated and after vetting and review of the literature a consensus statement was reached...
May 23, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28613444/interindividual-differences-in-embodied-marginalization-osteological-and-stable-isotope-analyses-of-antebellum-enslaved-individuals
#9
Sophia C Dent
OBJECTIVES: Through pathological and stable isotope analyses, this study probes the stressors, disease ecology, and diets of enslaved individuals from an antebellum plantation cemetery. The study aims to highlight how interindividual isotopic differences reveal that marginalization is not uniformly experienced or embodied. METHODS: The cemetery population consists of 16 individuals; dental and skeletal pathological indicators were collected for all individuals, and light stable isotope ratios (δ(15) N, δ(13) C) were generated from the collagen and hydroxyapatite of nine individuals...
July 8, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/28612479/open-water-and-under-ice-seasonal-variations-in-trace-element-content-and-physicochemical-associations-in-fluvial-bed-sediment
#10
Lorne E Doig, Meghan K Carr, Anna G N Meissner, Tim D Jardine, Paul D Jones, Lalita Bharadwaj, Karl-Erich Lindenschmidt
Across the circumpolar world, intensive anthropogenic activities in the southern reaches of many large, northward-flowing rivers can cause sediment contamination in the downstream depositional environment. The influence of ice cover on concentrations of inorganic contaminants in bed sediment (i.e., sediment quality) is unknown in these rivers where winter is the dominant season. A Geomorphic Response Unit (GRU) approach was used to select hydraulically-diverse sampling sites across a northern test-case system, the Slave River and Delta, NT, Canada...
June 13, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28603444/the-art-of-living-with-nzt-and-ict-dialectics-of-an-artistic-case-study
#11
EDITORIAL
Hub Zwart
I wholeheartedly sympathize conceptually with Coeckelbergh's paper. The dialectical relationship between vulnerability and technology constitutes the core of Hegel's Master and Slave (the primal scene of contemporary philosophy). Yet, the empirical dimension is underdeveloped and Coeckelbergh's ideas could profit from exposure to case studies. Building on a movie/novel (Limitless) devoted to vulnerability coping and living with ICT, I challenge the claim that modern heroism entails overcoming vulnerability with the help of enhancement and computers...
2017: Foundations of Science
https://www.readbyqxmd.com/read/28600976/master-slave-exponential-synchronization-of-delayed-complex-valued-memristor-based-neural-networks-via-impulsive-control
#12
Xiaofan Li, Jian-An Fang, Huiyuan Li
This paper investigates master-slave exponential synchronization for a class of complex-valued memristor-based neural networks with time-varying delays via discontinuous impulsive control. Firstly, the master and slave complex-valued memristor-based neural networks with time-varying delays are translated to two real-valued memristor-based neural networks. Secondly, an impulsive control law is constructed and utilized to guarantee master-slave exponential synchronization of the neural networks. Thirdly, the master-slave synchronization problems are transformed into the stability problems of the master-slave error system...
May 25, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28600265/multilateral-telecoordinated-control-of-multiple-robots-with-uncertain-kinematics
#13
Di-Hua Zhai, Yuanqing Xia
This paper addresses the telecoordinated control of multiple robots in the simultaneous presence of asymmetric time-varying delays, nonpassive external forces, and uncertain kinematics/dynamics. To achieve the control objective, a neuroadaptive controller with utilizing prescribed performance control and switching control technique is developed, where the basic idea is to employ the concept of motion synchronization in each pair of master-slave robots and among all slave robots. By using the multiple Lyapunov-Krasovskii functionals method, the state-independent input-to-output practical stability of the closed-loop system is established...
June 6, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28591371/-food-insecurity-in-rural-communities-in-northeast-brazil-does-belonging-to-a-slave-descendent-community-make-a-difference
#14
Etna Kaliane Pereira da Silva, Danielle Souto de Medeiros, Poliana Cardoso Martins, Líllian de Almeida Sousa, Gislane Pereira Lima, Maria Amanda Sousa Rêgo, Tainan Oliveira da Silva, Alessandra Silva Freire, Fernanda Moitinho Silva
This study aimed to measure the prevalence of food insecurity in a rural area of Northeast Brazil and investigate this outcome according to residence in quilombola communities (descendants of African slaves) versus non-quilombola communities. This was a cross-sectional study in 21 rural communities, 9 of which quilombolas, in 2014, using the Brazilian Food Insecurity Scale (EBIA). Prevalence rates and prevalence ratios were estimated for food insecurity, and Poisson multiple regression analysis with robust variance was performed...
June 1, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/28583735/electromagnetic-tracking-of-flexible-robotic-catheters-enables-assisted-navigation-and-brings-automation-to-endovascular-navigation-in-an-in-vitro-study
#15
Adeline Schwein, Benjamin Kramer, Ponraj Chinnadurai, Neha Virmani, Sean Walker, Marcia O'Malley, Alan B Lumsden, Jean Bismuth
OBJECTIVE: Combining three-dimensional (3D) catheter control with electromagnetic (EM) tracking-based navigation significantly reduced fluoroscopy time and improved robotic catheter movement quality in a previous in vitro pilot study. The aim of this study was to expound on previous results and to expand the value of EM tracking with a novel feature, assistednavigation, allowing automatic catheter orientation and semiautomatic vessel cannulation. METHODS: Eighteen users navigated a robotic catheter in an aortic aneurysm phantom using an EM guidewire and a modified 9F robotic catheter with EM sensors at the tip of both leader and sheath...
June 2, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28583349/design-and-implementation-of-ep-based-pid-controller-for-chaos-synchronization-of-rikitake-circuit-systems
#16
Yi-You Hou
This article addresses an evolutionary programming (EP) algorithm technique-based and proportional-integral-derivative (PID) control methods are established to guarantee synchronization of the master and slave Rikitake chaotic systems. For PID synchronous control, the evolutionary programming (EP) algorithm is used to find the optimal PID controller parameters kp, ki, kd by integrated absolute error (IAE) method for the convergence conditions. In order to verify the system performance, the basic electronic components containing operational amplifiers (OPAs), resistors, and capacitors are used to implement the proposed chaotic Rikitake systems...
June 2, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28569367/resonance-modulation-annihilation-and-generation-of-anti-resonance-and-anti-phasonance-in-3d-neuronal-systems-interplay-of-resonant-and-amplifying-currents-with-slow-dynamics
#17
Horacio G Rotstein
Subthreshold (membrane potential) resonance and phasonance (preferred amplitude and zero-phase responses to oscillatory inputs) in single neurons arise from the interaction between positive and negative feedback effects provided by relatively fast amplifying currents and slower resonant currents. In 2D neuronal systems, amplifying currents are required to be slave to voltage (instantaneously fast) for these phenomena to occur. In higher dimensional systems, additional currents operating at various effective time scales may modulate and annihilate existing resonances and generate antiresonance (minimum amplitude response) and antiphasonance (zero-phase response with phase monotonic properties opposite to phasonance)...
August 2017: Journal of Computational Neuroscience
https://www.readbyqxmd.com/read/28529233/the-medicinal-rod-slave-health-and-redhibition-law-in-george-washington-cable-s-i-the-grandissimes-i
#18
Heather Chacón
The economic transactions and litigation necessary for slavery to function, coupled with the South's honor culture, meant skepticism and posturing frequently attended the buying and selling of enslaved people. This atmosphere provided opportunities for enslaved individuals familiar with the symbiotic ways their health and value intertwined to manipulate owners by feigning illness or adopting behaviors contrary to those of a "sound and sane" captive under Louisiana's redhibitory (slave warranty) law. Such actions offered a chance at preserving that which slavery denied its victims: proximity to family, a reduced chance of being sold, and an opportunity to exert agency within a strictly oppressive system...
2017: Literature and Medicine
https://www.readbyqxmd.com/read/28527449/correlated-matrix-fluctuation-mediated-activated-transport-of-dilute-penetrants-in-glass-forming-liquids-and-suspensions
#19
Rui Zhang, Kenneth S Schweizer
We formulate a microscopic, force-level statistical mechanical theory for the activated diffusion of dilute penetrants in dense liquids, colloidal suspensions, and glasses. The approach explicitly and self-consistently accounts for coupling between penetrant hopping and matrix dynamic displacements that actively facilitate the hopping event. The key new ideas involve two mechanistically (at a stochastic trajectory level) coupled dynamic free energy functions for the matrix and spherical penetrant particles...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28513375/helping-victims-of-modern-slavery
#20
Louise Cahill
I was volunteering at a refugee centre when a woman told me she was the happiest she could remember being. She said she had previously been a slave, and no matter how bad I thought her situation was now, it was always better than her past.
May 17, 2017: Nursing Standard
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