Results 141 to 150 of about 111,551 (360)

Predicting Patterns of Firms’ Vulnerability to Economic Crises Using Open Data, Synthetic Minority Oversampling Technique and Machine Learning

, 2023
Mohsan Ali, Euripidis Loukis, Yannis Charalabidis   +2 more
openalex   +2 more sources

Repeatability of Rapid Human Cardiac Phosphorus MRSI (31P‐MRSI) Using Concentric Ring Trajectory Readouts at 7 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose PCr/ATP ratio is determined at 7 T typically using Fourier‐transform based magnetic resonance spectroscopic imaging sequences (FT‐MRSI). These sequences require acquisition times longer than desirable for inclusion in cardiac clinical trials. Concentric ring trajectory (CRT‐MRSI) has been described as an accelerated alternative k‐space
Ferenc E. Mózes, William T. Clarke, Andrew Tyler, Jabrane Karkouri, Fabian Niess, Jack J. J. J. Miller, Christopher T. Rodgers, Wolfgang Bogner, Ladislav Valkovič   +8 more
wiley   +1 more source

Bicomponent Mapping of Cortical Bone Using a New Interleaved UTE Imaging Sequence

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Ultrashort echo time (UTE) MRI enables direct imaging of cortical bone and quantification of its water compartments via bicomponent T2* modeling. However, conventional approaches require multiple separate dual‐echo scans due to limitations in gradient power. This approach is prone to inter‐scan inconsistencies such as motion and signal
Soo Hyun Shin, Jiyo S. Athertya, Arya Suprana, James Lo, Jiaji Wang, Dina Moazamian, Fanny Chapelin, Yajun Ma   +7 more
wiley   +1 more source

Motion‐ and Field‐Robust Mesoscopic Whole‐Brain T2*$$ {T}_2^{\ast } $$‐Weighted Imaging at 7 and 11.7 T Using Servo Navigation

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To mitigate artifacts related to motion and field changes in high‐resolution T2*$$ {T}_2^{\ast } $$‐weighted human brain imaging using servo navigation at ultra‐high fields up to 11.7 T. Methods MR‐based servo navigators were integrated into a segmented 3D‐EPI sequence to allow for prospective correction of involuntary head motion and ...
Matthias Serger, Rüdiger Stirnberg, Philipp Ehses, Malte Riedel, Thomas Ulrich, Caroline Le Ster, Franck Mauconduit, Vincent Gras, Alexis Amadon, Alexandre Vignaud, Son Chu, Shajan Gunamony, Maxim Zaitsev, Nicolas Boulant, Klaas P. Pruessmann, Tony Stoecker   +15 more
wiley   +1 more source

Oversampling of minority categories drives misperceptions of group compositions

, 2021
Mel Win Khaw, Rachel Kranton, Scott A. Huettel   +2 more
openalex   +2 more sources

Standardization of MR Electrical Properties Tomography: A Guideline From the ISMRM Electro‐Magnetic Tissue Properties Study Group

Journal of Magnetic Resonance Imaging, EarlyView.
Stefano Mandija, Alessandro Arduino, Chuanjiang Cui, Patrick Fuchs, Ilias I. Giannakopoulos, Yusuf Ziya Ider, Kyu‐Jin Jung, Nitish Katoch, Ulrich Katscher, Dong‐Hyun Kim, Riccardo Lattanzi, Thierry Meerbothe, Freddy Odille, Karin Shmueli, Paul Soullié, Khin Khin Tha, Luca Zilberti, Cornelis A. T. van den Berg   +17 more
wiley   +1 more source

Calibration‐Free GRAPE pTx Pulses for Homogeneous Spatial‐Selective Excitation at 7T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Extend the universal pulse GRAPE formalism to pulses with a defined spectral response, and apply the concept to spatial selection. Methods We added Bloch simulations at several frequencies for each voxel to the pulse calculation to create universal spectrally‐selective GRAPE pulses.
Daniel Löwen, Eberhard D. Pracht, Marten Veldmann, Vincent Gras, Franck Mauconduit, Nicolas Boulant, Tony Stöcker   +6 more
wiley   +1 more source

Oversampling of digitized images

The Astronomical Journal, 1976
Oversampling is defined as sampling with a device whose characteristic width is greater than the interval between samples. This paper shows why oversampling should be avoided and discusses the limitations in data processing if circumstances dictate that oversampling cannot be circumvented.
openaire   +1 more source

Additional file 3 of CarSite-II: an integrated classification algorithm for identifying carbonylated sites based on K-means similarity-based undersampling and synthetic minority oversampling techniques

, 2021
Yun Zuo, Jianyuan Lin, Xiangxiang Zeng, Quan Zou, Xiangrong Liu   +4 more
openalex   +1 more source

Mitigating Health Disparities Through Empathetic Policymaking During Times of Crisis

Public Administration and Development, EarlyView.
ABSTRACT The COVID‐19 pandemic greatly exacerbated the existing disparities and inequities in health and healthcare among historically marginalized populations. Today, these impacts still echo. These persistent structured inequities erode the public's trust in government, lead to failure in public policies, and result in worse health consequences ...
Yali Pang, Brittany Keegan, Robyn D. McDougle   +2 more
wiley   +1 more source