Diffusion Tensor Imaging for Glioma Grading: Analysis of Fiber Density Index [PDF]
Basic and Clinical Neuroscience, 2017 Introduction: The most common primary tumors of brain are gliomas and tumor grading is essential for designing proper treatment strategies. The gold standard choice to determine grade of glial tumor is biopsy which is an invasive method.
Fariba Davanian +3 more
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Reduced neurite density index in the prefrontal cortex of adults with autism assessed using neurite orientation dispersion and density imaging. [PDF]
Front Neurol, 2023 Background Core symptoms of autism-spectrum disorder (ASD) have been associated with prefrontal cortex abnormalities. However, the mechanisms behind the observation remain incomplete, partially due to the challenges of modeling complex gray matter (GM ...
Arai T +11 more
europepmc +2 more sources
White Matter Tract Density Index Prediction Model of Overall Survival in Glioblastoma.
JAMA Neurol, 2023 Importance The prognosis of overall survival (OS) in patients with glioblastoma (GBM) may depend on the underlying structural connectivity of the brain.
Salvalaggio A +13 more
europepmc +2 more sources
An empiriacal index for labour market density [PDF]
Review of Economics and Statistics, 2003 We derive a structural index for labor market density based on the Ellison-Glaeser index for industry concentration. The labor market density index serves as a proxy for the number of workers that are potentially available for jobs in a particular area ...
Gautier, P.A., Teulings, C.N.
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An Internal Validity Index Based on Density-Involved Distance
IEEE Access, 2019 It is crucial to evaluate the quality of clustering results in cluster analysis. Although many cluster validity indices (CVIs) have been proposed in the literature, they have some limitations when dealing with non-spherical datasets.
Lianyu Hu, Caiming Zhong
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Reliability of Singh’s Index and Calcaneal Index in Assessing Osteoporosis Compared with Quantitative Ultrasound Bone Mineral Density [PDF]
Journal of Orthopaedic Case ReportsIntroduction: Osteoporosis is a major global health problem characterized by reduced bone mass and increased fracture risk. Dual-energy X-ray absorptiometry is the gold standard for bone mineral density (BMD) measurement; however, its cost and limited ...
Rashmi Jain, Vipin Mishra, Ankit Jain
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The Illness Density Index (IDI): A longitudinal measure of treatment efficacy. [PDF]
Clin Trials, 2012 Background A reliable and meaningful quantitative index of success is paramount in the trial of any new treatment. However, existing methods for defining response and remission for treatments tested for psychiatric disorders are limited in that they ...
Kelley ME +3 more
europepmc +2 more sources
Cell nuclei have lower refractive index and mass density than cytoplasm
Journal of Biophotonics, 2016 Common perception regards the nucleus as a densely packed object with higher refractive index (RI) and mass density than the surrounding cytoplasm. Here, the volume of isolated nuclei is systematically varied by electrostatic and osmotic conditions as ...
Mirjam Schürmann +2 more
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Generalization of the Population Density Index Model
Perceptual and Motor Skills, 1991 The author's population density index (PDI) model was previously derived for the measurement of population density in studies employing 100 density points or less.
Frank O'Brien
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Verification of determination of hydraulic conductivity for coarse soils by empirical formulas based on the density index [PDF]
Acta Scientiarum Polonorum. Architectura, 2021 This paper examines the importance of empirical formulas for estimating the hydraulic conductivity of non- -cohesive soils, taking into account their compaction.
Krystyna Jaśkiewicz, Tomasz Godlewski
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