keyword
MENU ▼
Read by QxMD icon Read
search

Matlab

keyword
https://www.readbyqxmd.com/read/29040453/detection-of-sputum-by-interpreting-the-time-frequency-distribution-of-respiratory-sound-signal-using-image-processing-techniques
#1
Jinglong Niu, Yan Shi, Maolin Cai, Zhixin Cao, Dandan Wang, Zhaozhi Zhang, Xiaohua Douglas Zhang
Motivation: Sputum in the trachea is hard to expectorate and detect directly for the patients who are unconscious, especially those in Intensive Care Unit (ICU). Medical staff should always check the condition of sputum in the trachea. This is time-consuming and the necessary skills are difficult to acquire. Currently, there are few automatic approaches to serve as alternatives to this manual approach. Results: We develop an automatic approach to diagnose the condition of the sputum...
October 13, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29040384/selansi-a-toolbox-for-simulation-of-stochastic-gene-regulatory-networks
#2
Manuel Pájaro, Irene Otero-Muras, Carlos Vázquez, Antonio A Alonso
Motivation: Gene regulation is inherently stochastic. In many applications concerning Systems and Synthetic Biology such as the reverse engineering and the de novo design of genetic circuits, stochastic effects (yet potentially crucial) are often neglected due to the high computational cost of stochastic simulations. With advances in these fields there is an increasing need of tools providing accurate approximations of the stochastic dynamics of gene regulatory networks (GRNs) with reduced computational effort...
October 11, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29036445/development-validation-and-demonstration-of-the-nthu-flight-dose-calculator
#3
An-Lun Li, Wei-Fan Pan, Rong-Jiun Sheu
Galactic cosmic-ray-induced air showers constitute the largest source of radiation exposure for aircrew and passengers. To facilitate the evaluation of effective doses received by this population, a database containing dose rates of various radiation components in the atmosphere was established; the parameterization accounted for altitude, geomagnetic rigidity and solar modulation. Energy spectra of secondary cosmic rays and effective dose rates were calculated using the FLUKA Monte Carlo code. An auxiliary MATLAB program with a graphical user interface was developed to estimate the aviation route dose through interpolation and integration...
September 23, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29036307/irys-extract
#4
Rani Arielly, Yuval Ebenstein
Summary: Irys Extract is a software tool for generating genomic information from data collected by the BioNano Genomics Irys platform. The tool allows the user easy access to the raw data in the form of cropped images and genetically aligned intensity profiles. The latter are also made compatible with the BED format for using with popular genomic browsers such as the UCSC Genome Browser. Availability and implementation: Irys Extract has been developed in Matlab R2015a, it was tested to work with IrysView 2...
July 11, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29036054/automated-angular-and-translational-tomographic-alignment-and-application-to-phase-contrast-imaging
#5
T Ramos, J S Jørgensen, J W Andreasen
X-ray computerized tomography (CT) is a 3D imaging technique that makes use of x-ray illumination and image reconstruction techniques to reproduce the internal cross-sections of a sample. Tomographic projection data usually require an initial relative alignment or knowledge of the exact object position and orientation with respect to the detector. As tomographic imaging reaches increasingly better resolution, thermal drifts, mechanical instabilities, and equipment limitations are becoming the main dominant factors contributing to sample positioning uncertainties that will further introduce reconstruction artifacts and limit the attained resolution in the final tomographic reconstruction...
October 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29032767/metabonomics-uncovers-a-reversible-proatherogenic-lipid-profile-during-infliximab-therapy-of-inflammatory-bowel-disease
#6
Jacob Tveiten Bjerrum, Casper Steenholdt, Mark Ainsworth, Ole Haagen Nielsen, Michelle Ac Reed, Karen Atkins, Ulrich Leonhard Günther, Fuhua Hao, Yulan Wang
BACKGROUND: One-third of inflammatory bowel disease (IBD) patients show no response to infliximab (IFX) induction therapy, and approximately half of patients responding become unresponsive over time. Thus, identification of potential treatment response biomarkers are of great clinical significance. This study employs spectroscopy-based metabolic profiling of serum from patients with IBD treated with IFX and healthy subjects (1) to substantiate the use of spectroscopy as a semi-invasive diagnostic tool, (2) to identify potential biomarkers of treatment response and (3) to characterise the metabolic changes during management of patients with tumour necrosis factor-α inhibitors...
October 16, 2017: BMC Medicine
https://www.readbyqxmd.com/read/29030975/real-time-prediction-of-pre-cooked-japanese-sausages-color-with-different-storage-days-using-hyperspectral-imaging
#7
Chao-Hui Feng, Yoshio Makino, Masatoshi Yoshimura, Francisco J Rodríguez-Pulido
BACKGROUND: Redness can greatly influence the freshness of the sausages. A precise, rapid, and non-contact analytical methods or tools is highly demanded to quantify the color. Hyperspectral imaging (HSI) is an emerging technique which integrates spectroscopy and imaging to obtain the spectral and spatial information simultaneously. In this research, redness of cooked sausages stored up to 57 d was predicted using HSI in tandem with multivariate data analysis. The mean spectra of the sausages were extracted from the hyperspectral images...
October 14, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29028963/zcchc17-is-a-master-regulator-of-synaptic-gene-expression-in-alzheimer-s-disease
#8
Zeljko Tomljanovic, Mitesh Patel, William Shin, Andrea Califano, Andrew F Teich
Motivation: In an effort to better understand the molecular drivers of synaptic and neurophysiologic dysfunction in Alzheimer's disease (AD), we analyzed neuronal gene expression data from human AD brain tissue to identify master regulators of synaptic gene expression. Results: Master regulator analysis identifies ZCCHC17 as normally supporting the expression of a network of synaptic genes, and predicts that ZCCHC17 dysfunction in AD leads to lower expression of these genes...
September 25, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29028209/digital-implementation-of-the-two-compartmental-pinsky-rinzel-pyramidal-neuron-model
#9
Elahe Rahimian, Soheil Zabihi, Mahmood Amiri, Bernabe Linares-Barranco
It is believed that brain-like computing system can be achieved by the fusion of electronics and neuroscience. In this way, the optimized digital hardware implementation of neurons, primary units of nervous system, play a vital role in neuromorphic applications. Moreover, one of the main features of pyramidal neurons in cortical areas is bursting activities that has a critical role in synaptic plasticity. The Pinsky-Rinzel model is a nonlinear two-compartmental model for CA3 pyramidal cell that is widely used in neuroscience...
October 12, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/29028207/clustering-based-compression-for-population-dna-sequences
#10
Kin On Cheng, Ngai Fong Law, W-C Siu
Due to the advancement of DNA sequencing techniques, the number of sequenced individual genomes has experienced an exponential growth. Thus, effective compression of this kind of sequences is highly desired. In this work, we present a novel compression algorithm called Reference-based Compression algorithm using the concept of Clustering (RCC). The rationale behind RCC is based on the observation about the existence of substructures within the population sequences. To utilize these substructures, k-means clustering is employed to partition sequences into clusters for better compression...
October 12, 2017: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/29027911/outlier-detection-for-sensor-systems-odss-a-matlab-macro-for-evaluating-microphone-sensor-data-quality
#11
Robert Vasta, Ian Crandell, Anthony Millican, Leanna House, Eric Smith
Microphone sensor systems provide information that may be used for a variety of applications. Such systems generate large amounts of data. One concern is with microphone failure and unusual values that may be generated as part of the information collection process. This paper describes methods and a MATLAB graphical interface that provides rapid evaluation of microphone performance and identifies irregularities. The approach and interface are described. An application to a microphone array used in a wind tunnel is used to illustrate the methodology...
October 13, 2017: Sensors
https://www.readbyqxmd.com/read/29025727/ct-texture-analysis-potentially-predicts-local-failure-in-head-and-neck-squamous-cell-carcinoma-treated-with-chemoradiotherapy
#12
H Kuno, M M Qureshi, M N Chapman, B Li, V C Andreu-Arasa, K Onoue, M T Truong, O Sakai
BACKGROUND AND PURPOSE: The accurate prediction of prognosis and failure is crucial for optimizing treatment strategies for patients with cancer. The purpose of this study was to assess the performance of pretreatment CT texture analysis for the prediction of treatment failure in primary head and neck squamous cell carcinoma treated with chemoradiotherapy. MATERIALS AND METHODS: This retrospective study included 62 patients diagnosed with primary head and neck squamous cell carcinoma who underwent contrast-enhanced CT examinations for staging, followed by chemoradiotherapy...
October 12, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29022272/analysis-and-experimental-evaluation-of-shunt-active-power-filter-for-power-quality-improvement-based-on-predictive-direct-power-control
#13
Oualid Aissa, Samir Moulahoum, Ilhami Colak, Badreddine Babes, Nadir Kabache
This paper discusses the use of the concept of classical and predictive direct power control for shunt active power filter function. These strategies are used to improve the active power filter performance by compensation of the reactive power and the elimination of the harmonic currents drawn by non-linear loads. A theoretical analysis followed by a simulation using MATLAB/Simulink software for the studied techniques has been established. Moreover, two test benches have been carried out using the dSPACE card 1104 for the classic and predictive DPC control to evaluate the studied methods in real time...
October 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29021803/uav-based-thermal-imaging-for-high-throughput-field-phenotyping-of-black-poplar-response-to-drought
#14
Riccardo Ludovisi, Flavia Tauro, Riccardo Salvati, Sacha Khoury, Giuseppe Mugnozza Scarascia, Antoine Harfouche
Poplars are fast-growing, high-yielding forest tree species, whose cultivation as second-generation biofuel crops is of increasing interest and can efficiently meet emission reduction goals. Yet, breeding elite poplar trees for drought resistance remains a major challenge. Worldwide breeding programs are largely focused on intra/interspecific hybridization, whereby Populus nigra L. is a fundamental parental pool. While high-throughput genotyping has resulted in unprecedented capabilities to rapidly decode complex genetic architecture of plant stress resistance, linking genomics to phenomics is hindered by technically challenging phenotyping...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29017357/automated-hexahedral-meshing-of-knee-cartilage-structures-application-to-data-from-the-osteoarthritis-initiative
#15
B Rodriguez-Vila, P Sánchez-González, I Oropesa, E J Gomez, D M Pierce
We propose a fully automated methodology for hexahedral meshing of patient-specific structures of the human knee obtained from magnetic resonance images, i.e. femoral/tibial cartilages and menisci. We select eight patients from the Osteoarthritis Initiative and validate our methodology using MATLAB on a laptop computer. We obtain the patient-specific meshes in an average of three minutes, while faithfully representing the geometries with well-shaped elements. We hope to provide a fundamentally different means to test hypotheses on the mechanisms of disease progression by integrating our patient-specific FE meshes with data from individual patients...
October 10, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28993897/quantitative-image-feature-engine-qife-an-open-source-modular-engine-for-3d-quantitative-feature-extraction-from-volumetric-medical-images
#16
Sebastian Echegaray, Shaimaa Bakr, Daniel L Rubin, Sandy Napel
The aim of this study was to develop an open-source, modular, locally run or server-based system for 3D radiomics feature computation that can be used on any computer system and included in existing workflows for understanding associations and building predictive models between image features and clinical data, such as survival. The QIFE exploits various levels of parallelization for use on multiprocessor systems. It consists of a managing framework and four stages: input, pre-processing, feature computation, and output...
October 6, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28991919/optimal-coordinated-voltage-control-in-active-distribution-networks-using-backtracking-search-algorithm
#17
Tengku Juhana Tengku Hashim, Azah Mohamed
The growing interest in distributed generation (DG) in recent years has led to a number of generators connected to a distribution system. The integration of DGs in a distribution system has resulted in a network known as active distribution network due to the existence of bidirectional power flow in the system. Voltage rise issue is one of the predominantly important technical issues to be addressed when DGs exist in an active distribution network. This paper presents the application of the backtracking search algorithm (BSA), which is relatively new optimisation technique to determine the optimal settings of coordinated voltage control in a distribution system...
2017: PloS One
https://www.readbyqxmd.com/read/28988080/flood-susceptibility-mapping-using-novel-ensembles-of-adaptive-neuro-fuzzy-inference-system-and-metaheuristic-algorithms
#18
Seyed Vahid Razavi Termeh, Aiding Kornejady, Hamid Reza Pourghasemi, Saskia Keesstra
Flood is one of the most destructive natural disasters which cause great financial and life losses per year. Therefore, producing susceptibility maps for flood management are necessary in order to reduce its harmful effects. The aim of the present study is to map flood hazard over the Jahrom Township in Fars Province using a combination of adaptive neuro-fuzzy inference systems (ANFIS) with different metaheuristics algorithms such as ant colony optimization (ACO), genetic algorithm (GA), and particle swarm optimization (PSO) and comparing their accuracy...
October 4, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28986305/high-throughput-biosorter-quantification-of-relative-mitochondrial-content-and-membrane-potential-in-living-caenorhabditis-elegans
#19
Young Joon Kwon, Sujay Guha, Florin Tuluc, Marni J Falk
Mitochondrial respiratory chain disease is caused by a wide range of individually rare genetic disorders that impair cellular energy metabolism. While fluorescence microscopy analysis of nematodes fed MitoTracker Green (MTG) and tetramethylrhodamine ethyl ester (TMRE) can reliably quantify relative mitochondrial density and membrane potential, respectively, in C. elegans, it is a tedious process with limitations in the number and age of animals that can be studied. A novel, large particle, flow cytometry-based method reported here accelerates and automates the relative quantitation of mitochondrial physiology in nematode populations...
October 3, 2017: Mitochondrion
https://www.readbyqxmd.com/read/28985643/hyperspectral-imaging-and-support-vector-machine-a-powerful-combination-to-differentiate-black-cohosh-actaea-racemosa-from-other-cohosh-species
#20
Sidonie Tankeu, Ilze Vermaak, Weiyang Chen, Maxleene Sandasi, Guy Kamatou, Alvaro Viljoen
Actaea racemosa (black cohosh) has a history of traditional use in the treatment of general gynecological problems. However, the plant is known to be vulnerable to adulteration with other cohosh species. This study evaluated the use of shortwave infrared hyperspectral imaging (SWIR-HSI) in tandem with chemometric data analysis as a fast alternative method for the discrimination of four cohosh species (Actaea racemosa, Actaea podocarpa, Actaea pachypoda, Actaea cimicifuga) and 36 commercial products labelled as black cohosh...
October 6, 2017: Planta Medica
keyword
keyword
101607
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"