Results 161 to 170 of about 2,813,405 (313)
Improving Markov Switching Models using Realized Variance
Jia Liu, John M. Maheu
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In over 50% of non‐metastatic breast cancer patients, circulating tumor cells (CTCs) along the whole epithelial‐mesenchymal transition spectrum are detected. Total CTC number and individual phenotypes relate to aggressive disease characteristics, including lymph node involvement and higher tumor proliferation. At the single‐cell level, mesenchymal CTCs
Justyna Topa +14 more
wiley +1 more source
Convex Order Properties of Discrete Realized Variance and Applications to Variance Options
Martin Keller‐Ressel
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Aggressive prostate cancer is associated with pericyte dysfunction
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero +11 more
wiley +1 more source
Are there Structural Breaks in Realized Volatility? [PDF]
Constructed from high-frequency data, realized volatility (RV) provides an efficient estimate of the unobserved volatility of financial markets. This paper uses a Bayesian approach to investigate the evidence for structural breaks in reduced form time ...
Chun Liu, John M Maheu
core
Cryptocurrency Dependency of Realized Variance and Economic Policy Uncertainty
Wei-Ying Nie +2 more
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Genetic testing in epithelial ovarian cancer includes both germline and tumor‐testing. This approach often duplicates resources. The current prospective study assessed the feasibility of tumor‐first multigene testing by comparing tumor tissue with germline testing of peripheral blood using an 18‐gene NGS panel in 106 patients.
Elisabeth Spenard +12 more
wiley +1 more source
Realized Wavelet-Based Estimation of Integrated Variance and Jumps in the Presence of Noise
Jozef Baruník, Lukáš Vácha
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Detection of extrachromosomal circular DNA (eccDNA) in plasma samples from EGFR‐mutated non‐small cell lung cancer patients. Plasma was collected before and during treatment with the EGFR‐tyrosine kinase inhibitor osimertinib. Plasma eccDNA was detected in all cancer samples, and the presence of the EGFR gene on eccDNA serves as a potential biomarker ...
Simone Stensgaard +5 more
wiley +1 more source
Realized Range-Based Estimation of Integrated Variance [PDF]
Kim Christensen, Mark Podolskij
openalex

