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https://www.readbyqxmd.com/read/29144898/re-a-novel-automatic-regulatory-device-for-continuous-bladder-irrigation-based-on-wireless-sensor-in-patients-after-transurethral-resection-of-the-prostate-a-prospective-investigation
#1
https://www.readbyqxmd.com/read/29144444/benthic-habitat-mapping-using-multispectral-high-resolution-imagery-evaluation-of-shallow-water-atmospheric-correction-techniques
#2
Francisco Eugenio, Javier Marcello, Javier Martin, Dionisio Rodríguez-Esparragón
Remote multispectral data can provide valuable information for monitoring coastal water ecosystems. Specifically, high-resolution satellite-based imaging systems, as WorldView-2 (WV-2), can generate information at spatial scales needed to implement conservation actions for protected littoral zones. However, coastal water-leaving radiance arriving at the space-based sensor is often small as compared to reflected radiance. In this work, complex approaches, which usually use an accurate radiative transfer code to correct the atmospheric effects, such as FLAASH, ATCOR and 6S, have been implemented for high-resolution imagery...
November 16, 2017: Sensors
https://www.readbyqxmd.com/read/29144409/how-well-can-we-extract-the-permanent-displacement-from-low-cost-mems-accelerometers
#3
Jyh Cherng Jan, Wei-An Chao, Yih-Min Wu, Chien-Chih Chen, Cheng-Horng Lin
Following the recent establishment of a high-density seismic network equipped with low-cost micro-electro-mechanical system (MEMS) P-wave-alert-device (P-Alert) by the earthquake early warning (EEW) research group at the National Taiwan University, a large quantity of strong-motion records from moderate-magnitude earthquakes (ML > 6) around Taiwan has been accumulated. Using a data preprocessing scheme to recover the dynamic average embedded within the P-Alert data, we adopted an automatic baseline correction approach for the P-Alert accelerograms to determine the coseismic deformation (Cd)...
November 16, 2017: Sensors
https://www.readbyqxmd.com/read/29143909/design-of-an-optimum-poincar%C3%A3-plane-for-extracting-meaningful-samples-from-eeg-signals
#4
Babak Sharif, Amir Homayoun Jafari
Biosignals are considered as important sources of data for diagnosing and detecting abnormalities, and modeling dynamics in the body. These signals are usually analyzed using features taken from time and frequency domain. In theory' these dynamics can also be analyzed utilizing Poincaré plane that intersects system's trajectory. However' selecting an appropriate Poincaré plane is a crucial part of extracting best Poincaré samples. There is no unique way to choose a Poincaré plane' because it is highly dependent to the system dynamics...
November 16, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/29143369/detection-of-adverse-drug-reactions-evaluation-of-an-automatic-data-processing-applied-in-oncology-performed-in-the-french-drg-database
#5
Alexandre Quillet, Olivier Colin, Nicolas Bourgeois, Sylvie Favrelière, Aurélie Ferru, Laurence Boinot, Claire Lafay-Chebassier, Marie-Christine Perault-Pochat
The aim of this study was to assess an automated detection method of serious adverse reactions induced by oral targeted therapy (OTT) in patients with cancer, performed in the French Diagnosis Related Groups (DRG) database. Cancer patients of the Poitiers hospital who started an OTT between 2014 and 2015 were included. This study focused on adverse drug reaction which required inpatient hospitalization (ADRh ). All diagnoses coded in the DRG database for hospital stays that occurred within three months after OTT initiation were collected (potential ADRh )...
November 15, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/29143363/utility-of-shear-wave-elastography-for-assessing-allograft-fibrosis-in-renal-transplant-recipients-a-pilot-study
#6
Heather M Early, Ellen C Cheang, Jorge M Aguilera, Jonah S W Hirschbein, Ghaneh Fananapazir, Machelle D Wilson, John P McGahan
OBJECTIVES: To evaluate the utility of ultrasound-based shear wave elastography (SWE) as a noninvasive method to accurately detect and potentially stage the severity of renal allograft fibrosis and assess its user reproducibility. METHODS: In this Institutional Review Board-approved, Health Insurance Portability and Accountability Act-compliant prospective study, 70 renal transplant recipients underwent an SWE evaluation of their allograft followed directly by biopsy...
November 16, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29143270/an-efficient-computer-aided-structural-elucidation-strategy-for-mixtures-using-an-iterative-dynamic-programming-algorithm
#7
Bo-Han Su, Meng-Yu Shen, Yeu-Chern Harn, San-Yuan Wang, Alioune Schurz, Chieh Lin, Olivia A Lin, Yufeng J Tseng
The identification of chemical structures in natural product mixtures is an important task in drug discovery but is still a challenging problem, as structural elucidation is a time-consuming process and is limited by the available mass spectra of known natural products. Computer-aided structure elucidation (CASE) strategies seek to automatically propose a list of possible chemical structures in mixtures by utilizing chromatographic and spectroscopic methods. However, current CASE tools still cannot automatically solve structures for experienced natural product chemists...
November 15, 2017: Journal of Cheminformatics
https://www.readbyqxmd.com/read/29142336/multi-atlas-based-ct-synthesis-from-conventional-mri-with-patch-based-refinement-for-mri-based-radiotherapy-planning
#8
Junghoon Lee, Aaron Carass, Amod Jog, Can Zhao, Jerry L Prince
Accurate CT synthesis, sometimes called electron density estimation, from MRI is crucial for successful MRI-based radiotherapy planning and dose computation. Existing CT synthesis methods are able to synthesize normal tissues but are unable to accurately synthesize abnormal tissues (i.e., tumor), thus providing a suboptimal solution. We propose a multi-atlas-based hybrid synthesis approach that combines multi-atlas registration and patch-based synthesis to accurately synthesize both normal and abnormal tissues...
February 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/29142324/an-algorithm-for-the-beat-to-beat-assessment-of-cardiac-mechanics-during-sleep-on-earth-and-in-microgravity-from-the-seismocardiogram
#9
Marco Di Rienzo, Emanuele Vaini, Prospero Lombardi
Seismocardiogram, SCG, is the measure of precordial vibrations produced by the beating heart, from which cardiac mechanics may be explored on a beat-to-beat basis. We recently collected a large amount of SCG data (>69 recording hours) from an astronaut to investigate cardiac mechanics during sleep aboard the International Space Station and on Earth. SCG sleep recordings are characterized by a prolonged duration and wide heart rate swings, thus a specific algorithm was developed for their analysis. In this article we describe the new algorithm and its performance...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29142094/standardized-automated-training-of-rhesus-monkeys-for-neuroscience-research-in-their-housing-environment
#10
Michael Berger, Antonino Calapai, Valeska Stephan, Michael Niessing, Leonore Burchardt, Alexander Gail, Stefan Treue
Teaching non-human primates the complex cognitive behavioral tasks that are central to cognitive neuroscience research is an essential and challenging endeavor. It is crucial for the scientific success that the animals learn to interpret the often complex task rules, and reliably and enduringly act accordingly. To achieve consistent behavior and comparable learning histories across animals, it is desirable to standardize training protocols. Automatizing the training can significantly reduce the time invested by the person training the animal...
November 15, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29141624/incorporating-patient-partner-scores-into-high-stakes-assessment-an-observational-study-into-opinions-and-attitudes
#11
Fiona C Thomson, Rhoda K MacKenzie, Marie Anderson, Alan R Denison, Graeme P Currie
BACKGROUND: Volunteer patients (also known as patient partners (PPs)) play a vital role in undergraduate healthcare curricula. They frequently take part in objective structured clinical examinations (OSCE) and rate aspects of students' performance. However, the inclusion and weighting of PP marks varies, while attitudes and opinions regarding how (and if) they should contribute towards the pass/fail outcome are uncertain. METHODS: A prospective observational study was conducted to explore beliefs of PPs regarding inclusion of their scores in a high stakes undergraduate OSCE in a single UK medical school...
November 15, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/29141489/non-linear-conversion-of-hx4-uptake-for-automatic-segmentation-of-hypoxic-volumes-and-dose-prescription
#12
Ana Ureba, Emely Lindblom, Alexandru Dasu, Johan Uhrdin, Aniek J G Even, Wouter van Elmpt, Philippe Lambin, Peter Wersäll, Iuliana Toma-Dasu
BACKGROUND: Tumour hypoxia is associated with increased radioresistance and poor response to radiotherapy. Pre-treatment assessment of tumour oxygenation could therefore give the possibility to tailor the treatment by calculating the required boost dose needed to overcome the increased radioresistance in hypoxic tumours. This study concerned the derivation of a non-linear conversion function between the uptake of the hypoxia-PET tracer (18)F-HX4 and oxygen partial pressure (pO2). MATERIAL AND METHODS: Building on previous experience with FMISO including experimental data on tracer uptake and pO2, tracer-specific model parameters were derived for converting the normalised HX4-uptake at the optimal imaging time point to pO2...
November 16, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29141130/enhancement-of-l-threonine-production-through-controlling-sequential-carbon-nitrogen-ratios-during-fermentation
#13
Hyeok-Won Lee, Hee-Suk Lee, Chun-Suk Kim, Jin-Gyeom Lee, Won-Kyo Kim, Eun-Gyo Lee, Hong-Weon Lee
Controlling residual glucose concentration is important for improving productivity in L-threonine fermentation. In this study, we developed a procedure to automatically control the feeding quantity of glucose solution as a function of ammonia-water consumption rate. The feeding ratio (Rc/n) of glucose and ammonia water was pre-determined via a stoichiometric approach, based on glucose-ammonia water consumption rates. In a 5-L fermenter, 102 g/L L-threonine was obtained using our glucose-ammonia water combined feeding strategy, which was then successfully applied in a 500-L fermenter (89g/L)...
November 15, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29140781/a-generative-audio-visual-prosodic-model-for-virtual-actors
#14
Adela Barbulescu, Remi Ronfard, Gerard Bailly
An important problem in computer animation of virtual characters is the expression of complex mental states during conversation using the coordinated prosody of voice, rhythm, facial expressions, and head and gaze motion. In this work, the authors propose an expressive conversion method for generating natural speech and facial animation in a variety of recognizable attitudes, using neutral speech and animation as input. Their method works by automatically learning prototypical prosodic contours at the sentence level from an original dataset of dramatic attitudes...
November 2017: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29140499/simple-arithmetic-not-so-simple-for-highly-math-anxious-individuals
#15
Hyesang Chang, Lisa Sprute, Erin A Maloney, Sian L Beilock, Marc G Berman
Fluency with simple arithmetic, typically achieved in early elementary school, is thought to be one of the building blocks of mathematical competence. Behavioral studies with adults indicate that math anxiety (feelings of tension or apprehension about math) is associated with poor performance on cognitively demanding math problems. However, it remains unclear whether there are fundamental differences in how high and low math anxious individuals approach overlearned simple arithmetic problems that are less reliant on cognitive control...
November 11, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/29140267/detection-of-partial-discharge-sources-using-uhf-sensors-and-blind-signal-separation
#16
Carlos Boya, Guillermo Robles, Emilio Parrado-Hernández, Marta Ruiz-Llata
The measurement of the emitted electromagnetic energy in the UHF region of the spectrum allows the detection of partial discharges and, thus, the on-line monitoring of the condition of the insulation of electrical equipment. Unfortunately, determining the affected asset is difficult when there are several simultaneous insulation defects. This paper proposes the use of an independent component analysis (ICA) algorithm to separate the signals coming from different partial discharge (PD) sources. The performance of the algorithm has been tested using UHF signals generated by test objects...
November 15, 2017: Sensors
https://www.readbyqxmd.com/read/29139557/using-somatosensory-mismatch-responses-as-a-window-into-somatotopic-processing-of-tactile-stimulation
#17
Guannan Shen, Nathan J Smyk, Andrew N Meltzoff, Peter J Marshall
Brain responses to tactile stimulation have often been studied through the examination of ERPs elicited to touch on the body surface. Here, we examined two factors potentially modulating the amplitude of the somatosensory mismatch negativity (sMMN) and P300 responses elicited by touch to pairs of body parts: (a) the distance between the representation of these body parts in somatosensory cortex, and (b) the physical distances between the stimulated points on the body surface. The sMMN and the P300 response were elicited by tactile stimulation in two oddball protocols...
November 15, 2017: Psychophysiology
https://www.readbyqxmd.com/read/29139544/automatic-detection-of-dna-double-strand-sreaks-after-irradiation-using-an-%C3%AE-h2ax-assay
#18
Tim Hohmann, Jacqueline Kessler, Urszula Grabiec, Matthias Bache, Dyrk Vordermark, Faramarz Dehghani
Radiation therapy belongs to the most common approaches for cancer therapy leading amongst others to DNA damage like double strand breaks (DSB). DSB can be used as a marker for the effect of radiation on cells. For visualization and assessing the extent of DNA damage the γH2AX foci assay is frequently used. The analysis of the γH2AX foci assay remains complicated as the number of γH2AX foci has to be counted. The quantification is mostly done manually, being time consuming and leading to person-dependent variations...
November 15, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/29139208/a-knowledge-based-approach-to-automated-planning-for-hepatocellular-carcinoma
#19
Yujie Zhang, Tingting Li, Han Xiao, Weixing Ji, Ming Guo, Zhaochong Zeng, Jianying Zhang
PURPOSE: To build a knowledge-based model of liver cancer for Auto-Planning, a function in Pinnacle, which is used as an automated inverse intensity modulated radiation therapy (IMRT) planning system. METHODS AND MATERIALS: Fifty Tomotherapy patients were enrolled to extract the dose-volume histograms (DVHs) information and construct the protocol for Auto-Planning model. Twenty more patients were chosen additionally to test the model. Manual planning and automatic planning were performed blindly for all twenty test patients with the same machine and treatment planning system...
November 15, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29139130/less-cortical-thickness-in-patients-with-persistent-post-traumatic-headache-compared-with-healthy-controls-an-mri-study
#20
Catherine D Chong, Visar Berisha, Chia-Chun Chiang, Katherine Ross, Todd J Schwedt
OBJECTIVE: To investigate differences in cortical thickness in patients with persistent post-traumatic headache (PPTH) relative to healthy controls and to interrogate whether cortical morphology relates to headache burden (headache frequency, years with post-traumatic headache, PTH) in patients with PPTH. BACKGROUND: PTHs are one of the most common symptoms following concussion. In some patients, PTHs continue for longer than three months and are classified as PPTH...
November 15, 2017: Headache
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