Results 91 to 100 of about 2,813,405 (313)

Forecast Combinations in the Presence of Structural Breaks: Evidence from U.S. Equity Markets

open access: yesMathematics, 2018
Realized volatility, building on the theory of a simple continuous time process, has recently received attention as a nonparametric ex-post estimate of the return variation. This paper addresses the problem of parameter instability due to the presence of
Davide De Gaetano
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

open access: yesFEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

Performance of Gel Treatments in Reservoirs with Multiscale Heterogeneity

open access: yesJournal of Chemistry, 2013
Spatially correlated permeability fields are usually generated by single-scale correlation. To overcome the limitations of single-scale permeability fields in describing real situation, permeability fields should be generated by multiscale correlation ...
Ji Ho Lee, Kun Sang Lee
doaj   +1 more source

The inhibitory SAPS3–AMPK interaction detected in HEK293 cells is not detectable in muscle or liver from humans or mice

open access: yesFEBS Letters, EarlyView.
This study challenges the idea that Sit4‐associated protein subunit 3 (SAPS3) inhibits the energy‐sensing enzyme AMP‐activated protein kinase (AMPK) in muscle and liver tissue. Although SAPS3 interacts with AMPK in cultured cells, we found no such interaction in human or mouse tissues subjected to fasting, exercise, or a high‐fat diet.
Jesper B. Birk   +3 more
wiley   +1 more source

Estimating High-Frequency Based (Co-) Variances: A Unified Approach [PDF]

open access: yes
We propose a unified framework for estimating integrated variances and covariances based on simple OLS regressions, allowing for a general market microstructure noise specification.
Ingmar Nolte, Valeri Voev
core  

The zinc finger domains of PARP‐1 are selectively and potently inhibited by the Au(I)‐based drugs sodium aurothiomalate and aurothioglucose

open access: yesFEBS Letters, EarlyView.
PARP‐1 is a key enzyme in the DNA damage response, and its inhibition induces cancer cell death via synthetic lethality. Au(I)‐based drugs, such as aurothioglucose and sodium aurothiomalate, block PARP‐1's DNA‐dependent activity by targeting its zinc finger domains.
Uliana Bashtanova, Melinda Jane Duer
wiley   +1 more source

Do oil-price shocks predict the realized variance of U.S. REITs?

open access: yesEnergy Economics, 2021
M. Bonato   +3 more
semanticscholar   +1 more source

Comparing self‐reported race and genetic ancestry for identifying potential differentially methylated sites in endometrial cancer: insights from African ancestry proportions using machine learning models

open access: yesMolecular Oncology, EarlyView.
Integrating ancestry, differential methylation analysis, and machine learning, we identified robust epigenetic signature genes (ESGs) and Core‐ESGs in Black and White women with endometrial cancer. Core‐ESGs (namely APOBEC1 and PLEKHG5) methylation levels were significantly associated with survival, with tumors from high African ancestry (THA) showing ...
Huma Asif, J. Julie Kim
wiley   +1 more source

A large‐scale retrospective study in metastatic breast cancer patients using circulating tumour DNA and machine learning to predict treatment outcome and progression‐free survival

open access: yesMolecular Oncology, EarlyView.
There is an unmet need in metastatic breast cancer patients to monitor therapy response in real time. In this study, we show how a noninvasive and affordable strategy based on sequencing of plasma samples with longitudinal tracking of tumour fraction paired with a statistical model provides valuable information on treatment response in advance of the ...
Emma J. Beddowes   +20 more
wiley   +1 more source

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