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https://www.readbyqxmd.com/read/28822408/-the-application-of-artificial-neural-network-on-the-assessment-of-lexical-tone-production-of-pediatric-cochlear-implant-users
#1
Y T Mao, Z M Chen, L Xu
Objective: The present study was carried out to explore the tone production ability of the Mandarin-speaking children with cochlear implants (CI) by using an artificial neural network model and to examine the potential contributing factors underlining their tone production performance. The results of this study might provide useful guidelines for post-operative rehabilitation processes of pediatric CI users. Methods: Two hundred and seventy-eight prelingually deafened children who received unilateral CI participated in this study...
August 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28820744/simulation-of-morphologically-structured-photo-thermal-neural-stimulation
#2
Y Weissler, N Farah, S Shoham
OBJECTIVE: Rational design of next-generation techniques for photo-thermal excitation requires the development of tools capable of modeling the effects of spatially- and temporally-dependent temperature distribution on cellular neuronal structures. APPROACH: We present a new computer simulation tool for predicting the effects of arbitrary spatiotemporally-structured photo-thermal stimulation on 3D, morphologically realistic neurons. The new simulation tool is based on interfacing two generic platforms, NEURON and MATLAB and is therefore suited for capturing different kinds of stimuli and neural models...
August 18, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28813901/adaptive-control-based-on-an-on-line-parameter-estimation-of-an-upper-limb-exoskeleton
#3
Akram Riani, Tarek Madani, Abdelhafid El Hadri, Abdelaziz Benallegue
This paper presents an adaptive control strategy for an upper-limb exoskeleton based on an on-line dynamic parameter estimator. The objective is to improve the control performance of this system that plays a critical role in assisting patients for shoulder, elbow and wrist joint movements. In general, the dynamic parameters of the human limb are unknown and differ from a person to another, which degrade the performances of the exoskeleton-human control system. For this reason, the proposed control scheme contains a supplementary loop based on a new efficient on-line estimator of the dynamic parameters...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28805191/presenting-a-new-kinetic-model-for-methanol-to-light-olefins-reactions-over-a-hierarchical-sapo-34-catalyst-using-the-langmuir-hinshelwood-hougen-watson-mechanism
#4
Mohammad Javad Azarhoosh, Rouein Halladj, Sima Askari
In this study, a new kinetic model for methanol to light olefins (MTO) reactions over a hierarchical SAPO-34 catalyst using the Langmuir-Hinshelwood-Hougen-Watson mechanism was presented and the kinetic parameters was obtained using genetic algorithm (GA) and genetic programming (GP). Several kinetic models for the MTO reactions, have been presented. However, due to the complexity of the reactions, most reactions are considered lumped and elementary, which cannot be deemed a completely accurate kinetic model of the process...
August 14, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28803447/registration-free-automatic-identification-of-gold-fiducial-markers-in-mri-target-delineation-images-for-prostate-radiotherapy
#5
Christian Gustafsson, Juha Korhonen, Emilia Persson, Adalsteinn Gunnlaugsson, Tufve Nyholm, Lars E Olsson
PURPOSE: The superior soft tissue contrast of magnetic resonance imaging (MRI) compared to computed tomography (CT) has urged the integration of MRI and elimination of CT in radiotherapy treatment (RT) for prostate. An intraprostatic gold fiducial marker (GFM) appear hyperintense on CT. On T2 weighted (T2w) MRI target delineation images the GFM appear as a small signal void similar to calcifications and post biopsy fibrosis. It can therefore be difficult to identify the markers without CT...
August 13, 2017: Medical Physics
https://www.readbyqxmd.com/read/28800344/automatic-computer-aided-analysis-algorithms-and-system-for-adrenal-tumors-on-ct-images
#6
Hanchao Chai, Yi Guo, Yuanyuan Wang, Guohui Zhou
BACKGROUND: The adrenal tumor will disturb the secreting function of adrenocortical cells, leading to many diseases. Different kinds of adrenal tumors require different therapeutic schedules. OBJECTIVE: In the practical diagnosis, it highly relies on the doctor's experience to judge the tumor type by reading the hundreds of CT images. METHODS: This paper proposed an automatic computer aided analysis method for adrenal tumors detection and classification...
August 4, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28800324/fluid-in-the-tissue-channels-of-vascular-adventitia-investigated-by-afm-and-tem
#7
Xinxiao Han, Hongyi Li, Wenda Hua, Luru Dai, Zhuo Ao, Fulong Liao, Dong Han
BACKGROUND: Tissue channels as a part of microcirculation system have been proposed over three decade, playing an important role in fluid transportation as reported. Adventitia of inferior vena cava (IVC) is a typical hierarchical porous media with abundant tissue channels. Its fluid transportation behaviors attract massive research interest. However, the mechanism of the driving force and microstructure was lack of deep research. OBJECTIVE: This study was to investigate the microstructural basis of fluid transportation within inferior vena cava (IVC)...
August 11, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28799219/mmm-a-toolbox-for-integrative-structure-modelling
#8
Gunnar Jeschke
Structural characterization of proteins and their complexes may require integration of restraints from various experimental techniques. MMM is a Matlab-based open-source modelling toolbox for this purpose with a particular emphasis on distance distribution restraints obtained from electron paramagnetic resonance experiments on spin-labelled proteins and nucleic acids and their combination with atomistic structures of domains or whole protomers, small-angle scattering data, secondary structure information, homology information, and elastic network models...
August 11, 2017: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/28798837/automated-modification-and-fusion-of-voxel-models-to-construct-body-phantoms-with-heterogeneous-breast-tissue-application-to-mri-simulations
#9
Joseph V Rispoli, Steven M Wright, Craig R Malloy, Mary P McDougall
BACKGROUND: Human voxel models incorporating detailed anatomical features are vital tools for the computational evaluation of electromagnetic (EM) fields within the body. Besides whole-body human voxel models, phantoms representing smaller heterogeneous anatomical features are often employed; for example, localized breast voxel models incorporating fatty and fibroglandular tissues have been developed for a variety of EM applications including mammography simulation and dosimetry, magnetic resonance imaging (MRI), and ultra-wideband microwave imaging...
2017: Journal of Biomedical Graphics and Computing
https://www.readbyqxmd.com/read/28795112/real-time-fmri-data-for-testing-opennft-functionality
#10
Yury Koush, John Ashburner, Evgeny Prilepin, Ronald Sladky, Peter Zeidman, Sergei Bibikov, Frank Scharnowski, Artem Nikonorov, Dimitri Van De Ville
Here, we briefly describe the real-time fMRI data that is provided for testing the functionality of the open-source Python/Matlab framework for neurofeedback, termed Open NeuroFeedback Training (OpenNFT, Koush et al. [1]). The data set contains real-time fMRI runs from three anonymized participants (i.e., one neurofeedback run per participant), their structural scans and pre-selected ROIs/masks/weights. The data allows for simulating the neurofeedback experiment without an MR scanner, exploring the software functionality, and measuring data processing times on the local hardware...
October 2017: Data in Brief
https://www.readbyqxmd.com/read/28794930/evaluation-of-model-parameters-for-growth-tannic-acid-utilization-and-tannase-production-in-bacillus-gottheilii-m2s2-using-polyurethane-foam-blocks-as-support
#11
Subbalaxmi Selvaraj, Ramachandra Murty Vytla
Production of tannase from B. gottheilii M2S2 was studied under solid-state fermentation with an optimized medium consisting of polyurethane foam matrix of dimension 40 × 40 × 5 mm, impregnated with a liquid medium comprising (w/v): 4% tannic acid; 2% NH4NO3; 0.1% KH2PO4; 0.2% MgSO4; 0.1% NaCl and 0.05% CaCl2·2H2O in distilled water, having a pH of 4.7. Maximum tannase production of 56.87 U/L was obtained after 32 h of fermentation at 32 °C in static condition. This study deals with the evaluation of unstructured kinetic models to understand the behavior of biomass, tannase production and tannic acid degradation, with the fermentation time...
October 2017: 3 Biotech
https://www.readbyqxmd.com/read/28794324/christmas-tree-derived-amplification-immuno-strategy-for-sensitive-visual-detection-of-vibrio-parahaemolyticus-based-on-gold-label-silver-stain-technology
#12
Xinxin Song, Yanjie Wu, Lin Wu, Yufang Hu, Wenrou Li, Zhiyong Guo, Xiurong Su, Xiaohua Jiang
A developed Christmas-tree derived immunosensor based on a gold label silver stain (GLSS) technique was fabricated for a highly sensitive analysis of Vibrio parahaemolyticu (VP). In this strategy, captured VP antibody (cAb) was immobilized on a solid substrate; then, the VPs were sequentially tagged with a signal probe by incubating the assay with a detection VP antibody (dAb) conjugated gold nanoparticles (AuNPs)-labeled graphite-like carbon nitride (g-C3N4). Finally, the attached signal probe could harvest a visible signal by the silver meal deposition, and then followed by homebrew Matlab 6...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28791546/quantitative-analysis-of-photoreceptor-layer-reflectivity-on-en-face-optical-coherence-tomography-as-an-estimator-of-cone-density
#13
Maher Saleh, Mathieu Flores, Anne Sophie Gauthier, Emeric Elphege, Bernard Delbosc
BACKGROUND: To investigate whether outer retinal reflectivity on en-face Optical coherence tomography (OCT) can be considered as an estimator of cone density measured in the same area. METHODS: Forty-one points of comparisons were studied in 9 eyes (n = 6 patients) presenting maculopathies with various degrees of impairment of the photoreceptor layer. The inner segment ellipsoid zone (EZ), interdigitation zone (IZ), and retinal pigment epithelium (RPE) reflectivity were measured on coronal reconstruction of the photoreceptor layer using homemade dedicated software (Matlab, MathWorks Inc...
August 8, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28782629/normcorre-an-online-algorithm-for-piecewise-rigid-motion-correction-of-calcium-imaging-data
#14
Eftychios A Pnevmatikakis, Andrea Giovannucci
BACKGROUND: Motion correction is a challenging pre-processing problem that arises early in the analysis pipeline of calcium imaging data sequences. The motion artifacts in two-photon microscopy recordings can be non-rigid, arising from the finite time of raster scanning and non-uniform deformations of the brain medium. NEW METHOD: We introduce an algorithm for fast Non-Rigid Motion Correction (NoRMCorre) based on template matching. NoRMCorre operates by splitting the field of view (FOV) into overlapping spatial patches along all directions...
August 3, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28773798/fabrication-polarization-of-electrospun-polyvinylidene-fluoride-electret-fibers-and-effect-on-capturing-nanoscale-solid-aerosols
#15
Dinesh Lolla, Manideep Lolla, Ahmed Abutaleb, Hyeon U Shin, Darrell H Reneker, George G Chase
Electrospun polyvinylidene fluoride (PVDF) fiber mats with average fiber diameters (≈200 nm, ≈2000 nm) were fabricated by controlled electrospinning conditions. These fiber mats were polarized using a custom-made device to enhance the formation of the electret β-phase ferroelectric property of the fibers by simultaneous uniaxial stretching of the fiber mat and heating the mat to the Curie temperature of the PVDF polymer in a strong electric field of 2.5 kV/cm. Scanning electron microscopy, Fourier transform infrared spectroscopy, thermal gravimetric analysis, differential scanning calorimetry and Brunauer-Emmett-Teller (BET) surface area analyses were performed to characterize both the internal and external morphologies of the fiber mat samples to study polarization-associated changes...
August 9, 2016: Materials
https://www.readbyqxmd.com/read/28773129/image-analysis-technique-for-material-behavior-evaluation-in-civil-structures
#16
Emanuela Speranzini, Roberto Marsili, Michele Moretti, Gianluca Rossi
The article presents a hybrid monitoring technique for the measurement of the deformation field. The goal is to obtain information about crack propagation in existing structures, for the purpose of monitoring their state of health. The measurement technique is based on the capture and analysis of a digital image set. Special markers were used on the surface of the structures that can be removed without damaging existing structures as the historical masonry. The digital image analysis was done using software specifically designed in Matlab to follow the tracking of the markers and determine the evolution of the deformation state...
July 8, 2017: Materials
https://www.readbyqxmd.com/read/28770487/integrating-the-allen-brain-institute-cell-types-database-into-automated-neuroscience-workflow
#17
David B Stockton, Fidel Santamaria
We developed software tools to download, extract features, and organize the Cell Types Database from the Allen Brain Institute (ABI) in order to integrate its whole cell patch clamp characterization data into the automated modeling/data analysis cycle. To expand the potential user base we employed both Python and MATLAB. The basic set of tools downloads selected raw data and extracts cell, sweep, and spike features, using ABI's feature extraction code. To facilitate data manipulation we added a tool to build a local specialized database of raw data plus extracted features...
August 2, 2017: Neuroinformatics
https://www.readbyqxmd.com/read/28767375/a-trust-model-for-ubiquitous-healthcare-environment-on-the-basis-of-adaptable-fuzzy-probabilistic-inference-system
#18
Georgia Athanasiou, George C Anastasopoulos, Eleni Tiritidou, Dimitrios Lymberopoulos
Trust is considered to be a determinant on psychologist selection which can ensure patient satisfaction. Hence, trust concept is essential to be introduced into Ubiquitous Healthcare (UH) environment oriented on patients with anxiety disorders. This is accomplished by Trust Model estimating psychologists' trustworthiness, a priory to service delivery, with the use of patient's and his/her acquaintances testimonies, i.e. Personal Interaction Experience (PIE) and Reputation (R). In this paper, Trust Model is proposed to be materialized via an Adaptable Cloud Inference System (ACIS) that performs Trust Value (TV) estimation...
July 28, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28767360/software-toolbox-for-low-frequency-conductivity-and-current-density-imaging-using-mri
#19
Saurav Z K Sajib, Nitish Katoch, Hyung Joong Kim, Oh In Kwon, Eung Je Woo
OBJECTIVE: Low-frequency conductivity and current density imaging using MRI includes magnetic resonance electrical impedance tomography (MREIT), diffusion tensor MREIT (DT-MREIT), conductivity tensor imaging (CTI), and magnetic resonance current density imaging (MRCDI). MRCDI and MREIT provide current density and isotropic conductivity images, respectively, using current-injection phase MRI techniques. DT-MREIT produces anisotropic conductivity tensor images by incorporating diffusion weighted MRI into MREIT...
July 27, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28764713/non-iterative-geometric-approach-for-inverse-kinematics-of-redundant-lead-module-in-a-radiosurgical-snake-like-robot
#20
Olatunji Mumini Omisore, Shipeng Han, Lingxue Ren, Nannan Zhang, Kamen Ivanov, Ahmed Elazab, Lei Wang
BACKGROUND: Snake-like robot is an emerging form of serial-link manipulator with the morphologic design of biological snakes. The redundant robot can be used to assist medical experts in accessing internal organs with minimal or no invasion. Several snake-like robotic designs have been proposed for minimal invasive surgery, however, the few that were developed are yet to be fully explored for clinical procedures. This is due to lack of capability for full-fledged spatial navigation. In rare cases where such snake-like designs are spatially flexible, there exists no inverse kinematics (IK) solution with both precise control and fast response...
August 1, 2017: Biomedical Engineering Online
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