keyword
https://read.qxmd.com/read/38633334/a-compact-setup-for-behavioral-studies-measuring-limb-acceleration
#1
JOURNAL ARTICLE
J Rapp, B Sandurkov, P Müller, N H Jung, B Gleich
Behavioral studies contribute largely to a broader understanding of human brain mechanisms and the process of learning and memory. An established method to quantify motor learning is the analysis of thumb activity. In combination with brain stimulation, the effect of various treatments on neural plasticity and motor learning can be assessed. So far, the setups for thumb abduction measurements employed consist of bulky amplifiers and digital-to-analog devices to record the data. We developed a compact hardware setup to measure acceleration data which can be integrated into a wearable, including a sensor board and a microcontroller board which can be connected to a PC via USB...
June 2024: HardwareX
https://read.qxmd.com/read/38632712/development-of-a-trusted-third-party-at-a-large-university-hospital-design-and-implementation-study
#2
JOURNAL ARTICLE
Eric Wündisch, Peter Hufnagl, Peter Brunecker, Sophie Meier Zu Ummeln, Sarah Träger, Marcus Kopp, Fabian Prasser, Joachim Weber
BACKGROUND: Pseudonymization has become a best practice to securely manage the identities of patients and study participants in medical research projects and data sharing initiatives. This method offers the advantage of not requiring the direct identification of data to support various research processes while still allowing for advanced processing activities, such as data linkage. Often, pseudonymization and related functionalities are bundled in specific technical and organization units known as trusted third parties (TTPs)...
April 18, 2024: JMIR Medical Informatics
https://read.qxmd.com/read/38626471/an-intraoperative-accelerometry-and-real-time-analysis-tool-for-magnetic-resonance-guided-focused-ultrasound-thalamotomy
#3
JOURNAL ARTICLE
Catherine A Swytink-Binnema, Alan Coreas, Samuel Pichardo, G Bruce Pike, Zelma H T Kiss
Magnetic resonance-guided focused ultrasound (MRgFUS) is one of the newest surgical treatments for essential tremor (ET). During this procedure, a lesion is created within the thalamus to mitigate tremor. Targeting is done using a combination of stereotaxy, MR tractography, and sublesional heating, with tremor assessed during the procedure to gauge therapeutic effectiveness. Currently, tremor assessments are done qualitatively, but this approach requires the tremor change to be above a subjective threshold and provides no objective record of surgical tremor progression...
April 19, 2024: Journal of Neurosurgery
https://read.qxmd.com/read/38625780/visual-analytics-for-efficient-image-exploration-and-user-guided-image-captioning
#4
JOURNAL ARTICLE
Yiran Li, Junpeng Wang, Prince Aboagye, Chin-Chia Michael Yeh, Yan Zheng, Liang Wang, Wei Zhang, Kwan-Liu Ma
Recent advancements in pre-trained language-image models have ushered in a new era of visual comprehension. Leveraging the power of these models, this paper tackles two issues within the realm of visual analytics: (1) the efficient exploration of large-scale image datasets and identification of data biases within them; (2) the evaluation of image captions and steering of their generation process. On the one hand, by visually examining the captions generated from language-image models for an image dataset, we gain deeper insights into the visual contents, unearthing data biases that may be entrenched within the dataset...
April 16, 2024: IEEE Transactions on Visualization and Computer Graphics
https://read.qxmd.com/read/38613608/is-kidney-stone-calculator-efficient-in-predicting-ureteroscopic-lithotripsy-duration-a-holmium-yag-and-thulium-fiber-lasers-comparative-analysis
#5
JOURNAL ARTICLE
Marie Chicaud, Stessy Kutchukian, Steeve Doizi, François Audenet, Laurent Berthe, Laurent Yonneau, Thierry Lebret, Marc-Olivier Timsit, Arnaud Mejean, Luigi Candela, Catalina Solano, Mariela Corrales, Igor Duquesne, Aurélien Descazeaud, Olivier Traxer, Fréderic Panthier
PURPOSE: This study aimed to evaluate the ability of Kidney Stone Calculator (KSC), a flexible ureteroscopy surgical planning software, to predict the lithotripsy duration with both holmium:YAG (Ho:YAG) and thulium fiber laser (TFL). METHODS: A multicenter prospective study was conducted from January 2020 to April 2023. Patients with kidney or ureteral stones confirmed at non-contrast computed tomography and treated by flexible ureteroscopy with laser lithotripsy were enrolled...
April 13, 2024: World Journal of Urology
https://read.qxmd.com/read/38610332/a-wireless-data-acquisition-system-based-on-mems-accelerometers-for-operational-modal-analysis-of-bridges
#6
JOURNAL ARTICLE
Hamed Hasani, Francesco Freddi, Riccardo Piazza, Fabio Ceruffi
This paper illustrates a novel and cost-effective wireless monitoring system specifically developed for operational modal analysis of bridges. The system employs battery-powered wireless sensors based on MEMS accelerometers that dynamically balance power consumption with high processing features and a low-power, low-cost Wi-Fi module that ensures operation for at least five years. The paper focuses on the system's characteristics, stressing the challenges of wireless communication, such as data preprocessing, synchronization, system lifetime, and simple configurability, achieved through the integration of a user-friendly, web-based graphical user interface...
March 26, 2024: Sensors
https://read.qxmd.com/read/38610288/-mam-e-mammographic-synthetic-image-generation-with-diffusion-models
#7
JOURNAL ARTICLE
Ricardo Montoya-Del-Angel, Karla Sam-Millan, Joan C Vilanova, Robert Martí
Generative models are used as an alternative data augmentation technique to alleviate the data scarcity problem faced in the medical imaging field. Diffusion models have gathered special attention due to their innovative generation approach, the high quality of the generated images, and their relatively less complex training process compared with Generative Adversarial Networks. Still, the implementation of such models in the medical domain remains at an early stage. In this work, we propose exploring the use of diffusion models for the generation of high-quality, full-field digital mammograms using state-of-the-art conditional diffusion pipelines...
March 24, 2024: Sensors
https://read.qxmd.com/read/38600161/forecasting-the-strength-of-preplaced-aggregate-concrete-using-interpretable-machine-learning-approaches
#8
JOURNAL ARTICLE
Muhammad Faisal Javed, Muhammad Fawad, Rida Lodhi, Taoufik Najeh, Yaser Gamil
Preplaced aggregate concrete (PAC) also known as two-stage concrete (TSC) is widely used in construction engineering for various applications. To produce PAC, a mixture of Portland cement, sand, and admixtures is injected into a mold subsequent to the deposition of coarse aggregate. This process complicates the prediction of compressive strength (CS), demanding thorough investigation. Consequently, the emphasis of this study is on enhancing the comprehension of PAC compressive strength using machine learning models...
April 10, 2024: Scientific Reports
https://read.qxmd.com/read/38596743/-flexr-gui-a-graphical-user-interface-for-multi-conformer-modeling-of-proteins
#9
JOURNAL ARTICLE
Timothy R Stachowski, Marcus Fischer
Proteins are well known 'shapeshifters' which change conformation to function. In crystallography, multiple conformational states are often present within the crystal and the resulting electron-density map. Yet, explicitly incorporating alternative states into models to disentangle multi-conformer ensembles is challenging. We previously reported the tool FLEXR , which, within a few minutes, automatically separates conformational signal from noise and builds the corresponding, often missing, structural features into a multi-conformer model...
April 1, 2024: Journal of Applied Crystallography
https://read.qxmd.com/read/38596735/-x-ray-calc-3-improved-software-for-simulation-and-inverse-problem-solving-for-x-ray-reflectivity
#10
JOURNAL ARTICLE
Oleksiy V Penkov, Mingfeng Li, Said Mikki, Alexander Devizenko, Ihor Kopylets
This work introduces X-Ray Calc ( XRC ), an open-source software package designed to simulate X-ray reflectivity (XRR) and address the inverse problem of reconstructing film structures on the basis of measured XRR curves. XRC features a user-friendly graphical interface that facilitates interactive simulation and reconstruction. The software employs a recursive approach based on the Fresnel equations to calculate XRR and incorporates specialized tools for modeling periodic multilayer structures. This article presents the latest version of the X-Ray Calc software ( XRC3 ), with notable improvements...
April 1, 2024: Journal of Applied Crystallography
https://read.qxmd.com/read/38596720/the-pixel-anomaly-detection-tool-a-user-friendly-gui-for-classifying-detector-frames-using-machine-learning-approaches
#11
JOURNAL ARTICLE
Gihan Ketawala, Caitlin M Reiter, Petra Fromme, Sabine Botha
Data collection at X-ray free electron lasers has particular experimental challenges, such as continuous sample delivery or the use of novel ultrafast high-dynamic-range gain-switching X-ray detectors. This can result in a multitude of data artefacts, which can be detrimental to accurately determining structure-factor amplitudes for serial crystallography or single-particle imaging experiments. Here, a new data-classification tool is reported that offers a variety of machine-learning algorithms to sort data trained either on manual data sorting by the user or by profile fitting the intensity distribution on the detector based on the experiment...
April 1, 2024: Journal of Applied Crystallography
https://read.qxmd.com/read/38594488/an-active-machine-learning-approach-for-optimal-design-of-magnesium-alloys-using-bayesian-optimisation
#12
JOURNAL ARTICLE
M Ghorbani, M Boley, P N H Nakashima, N Birbilis
In the pursuit of magnesium (Mg) alloys with targeted mechanical properties, a multi-objective Bayesian optimisation workflow is presented to enable optimal Mg-alloy design. A probabilistic Gaussian process regressor model was trained through an active learning loop, while balancing the exploration and exploitation trade-off via an acquisition function of the upper confidence bound. New candidate alloys suggested by the optimiser within each iteration were appended to the training data, and the performance of this sequential strategy was validated via a regret analysis...
April 9, 2024: Scientific Reports
https://read.qxmd.com/read/38578849/bimodal-visualization-of-industrial-x-ray-and-neutron-computed-tomography-data
#13
JOURNAL ARTICLE
Xuan Huang, Haichao Miao, Andrew Townsend, Kyle Champley, Joseph Tringe, Valerio Pascucci, Peer-Timo Bremer
Advanced manufacturing creates increasingly complex objects with material compositions that are often difficult to characterize by a single modality. Our collaborating domain scientists are going beyond traditional methods by employing both X-ray and neutron computed tomography to obtain complementary representations expected to better resolve material boundaries. However, the use of two modalities creates its own challenges for visualization, requiring either complex adjustments of bimodal transfer functions or the need for multiple views...
April 4, 2024: IEEE Transactions on Visualization and Computer Graphics
https://read.qxmd.com/read/38577406/automated-cleaning-of-tie-point-clouds-following-usgs-guidelines-in-agisoft-metashape-professional-ver-2-1-0
#14
JOURNAL ARTICLE
Joel Mohren, Maximilian Schulze
The U.S. Geological Survey (USGS) has published a guideline to improve the quality of digital photogrammetric reconstructions created with the widely used Agisoft Metashape Professional software. The suggested workflows aim at filtering out low-quality tie points from the tie point cloud to optimize the camera model. However, the optimization procedure relies on an iteratively performed trial-and-error approach. If manually performed, the time expenditure required from the operator can be significant and the optimization process can be affected by the degree of diligence that is applied...
June 2024: MethodsX
https://read.qxmd.com/read/38574458/marge-a-graphical-environment-for-marcos
#15
JOURNAL ARTICLE
José M Algarín, Teresa Guallart-Naval, José Borreguero, Fernando Galve, Joseba Alonso
The open-source console MaRCoS, which stands for "Magnetic Resonance Control System", combines hardware, firmware and software elements for integral control of Magnetic Resonance Imaging (MRI) scanners. Previous developments have focused on making the system robust and reliable, rather than on users, who have been somewhat overlooked. This work describes a Graphical User Interface (GUI) designed for intuitive control of MaRCoS, as well as compatibility with clinical environments. The GUI is based on an arrangement of tabs and a renewed Application Program Interface (API)...
March 26, 2024: Journal of Magnetic Resonance
https://read.qxmd.com/read/38573174/inter-species-transcriptomic-analysis-reveals-a-constitutive-adaptation-against-oxidative-stress-for-the-highly-virulent-leptospira-species
#16
JOURNAL ARTICLE
Alexandre Giraud-Gatineau, Garima Ayachit, Cecilia Nieves, Kouessi C Dagbo, Konogan Bourhy, Francisco Pulido, Samuel G Huete, Nadia Benaroudj, Mathieu Picardeau, Frédéric J Veyrier
Transcriptomic analyses across large scales of evolutionary distance have great potential to shed light on regulatory evolution but are complicated by difficulties in establishing orthology and limited availability of accessible software. We introduce here a method and a graphical user interface wrapper, called Annotator-RNAtor, for performing interspecies transcriptomic analysis and studying intragenus evolution. The pipeline uses third-party software to infer homologous genes in various species and highlight differences in the expression of the core-genes...
April 2, 2024: Molecular Biology and Evolution
https://read.qxmd.com/read/38569889/vine-seg-deep-learning-assisted-segmentation-of-visible-neurons-and-subsequent-analysis-embedded-in-a-graphical-user-interface
#17
JOURNAL ARTICLE
Nicolas Ruffini, Saleh Altahini, Stephan Weißbach, Nico Weber, Jonas Milkovits, Anna Wierczeiko, Hendrik Backhaus, Albrecht Stroh
UNLABELLED: Segmentation of neural somata is a crucial and usually the most time-consuming step in the analysis of optical functional imaging of neuronal microcircuits. In recent years, multiple auto-segmentation tools have been developed to improve the speed and consistency of the segmentation process, mostly, using deep learning approaches. Current segmentation tools, while advanced, still encounter challenges in producing accurate segmentation results, especially in datasets with a low signal-to-noise ratio...
April 3, 2024: Bioinformatics
https://read.qxmd.com/read/38565866/graphical-user-interface-based-convolutional-neural-network-models-for-detecting-nasopalatine-duct-cysts-using-panoramic-radiography
#18
JOURNAL ARTICLE
Kotaro Ito, Naohisa Hirahara, Hirotaka Muraoka, Eri Sawada, Satoshi Tokunaga, Tomohiro Komatsu, Takashi Kaneda
Nasopalatine duct cysts are difficult to detect on panoramic radiographs due to obstructive shadows and are often overlooked. Therefore, sensitive detection using panoramic radiography is clinically important. This study aimed to create a trained model to detect nasopalatine duct cysts from panoramic radiographs in a graphical user interface-based environment. This study was conducted on panoramic radiographs and CT images of 115 patients with nasopalatine duct cysts. As controls, 230 age- and sex-matched patients without cysts were selected from the same database...
April 2, 2024: Scientific Reports
https://read.qxmd.com/read/38562910/an-interactive-visualization-tool-for-educational-outreach-in-protein-contact-map-overlap-analysis
#19
JOURNAL ARTICLE
Kevan Baker, Nathaniel Hughes, Sutanu Bhattacharya
Recent advancements in contact map-based protein three-dimensional (3D) structure prediction have been driven by the evolution of deep learning algorithms. However, the gap in accessible software tools for novices in this domain remains a significant challenge. This study introduces GoFold, a novel, standalone graphical user interface (GUI) designed for beginners to perform contact map overlap (CMO) problems for better template selection. Unlike existing tools that cater more to research needs or assume foundational knowledge, GoFold offers an intuitive, user-friendly platform with comprehensive tutorials...
2024: Front Bioinform
https://read.qxmd.com/read/38559039/open-source-tools-to-analyze-temporal-and-spatial-properties-of-local-field-potentials
#20
Geoffrey M Barrett, Srujan Vajram, Oliver Shetler, Andrew Aoun, S Abid Hussaini
Analysis of local field potentials (LFPs) is important for understanding how ensemble neurons function as a network in a specific region of the brain. Despite the availability of tools for analyzing LFP data, there are some missing features such as analysis of high frequency oscillations (HFOs) and spatial properties. In addition, accessibility of most tools is restricted due to closed source code and/or high costs. To overcome these issues, we have developed two freely available tools that make temporal and spatial analysis of LFP data easily accessible...
March 14, 2024: bioRxiv
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