Results 101 to 110 of about 1,343,672 (294)

Gaussian Tests of "Extremal White Noise" for Dependent, Heterogeneous, Heavy Tailed Strochastic Processes with an Application [PDF]

open access: yes
We develop a non-parametric test of tail-specific extremal serial dependence for possibly heavy-tailed time series. The test statistic is asymptotically chi-squared under a null of "extremal white noise", as long as extremes of the time series are Near ...
Jonathan B. Hill
core  

MITF maintains genome stability in nonmelanocyte lineages

open access: yesMolecular Oncology, EarlyView.
MITF is essential for melanocyte survival and acts as an oncogene in 10%–20% of melanomas. We show that MITF depletion causes genome instability in nonmelanocytic cells, leading to LATS2‐mediated P53 activation, cell cycle arrest, and apoptosis. This study highlights the role of MITF as a genome maintenance factor beyond the melanocyte lineage. Created
Drifa H. Gudmundsdottir   +13 more
wiley   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

open access: yesMolecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka   +9 more
wiley   +1 more source

Wave tails in time-dependent backgrounds [PDF]

open access: yesPhysical Review D, 2002
It is well-known that waves propagating under the influence of a scattering potential develop ``tails''. However, the study of late-time tails has so far been restricted to time-independent backgrounds. In this paper we explore the late-time evolution of spherical waves propagating under the influence of a {\it time-dependent} scattering potential.
openaire   +2 more sources

Extremal dependence in European capital markets [PDF]

open access: yes
For a sample of six countries with dirty/free float regimes over 1999-2002––the United States, Japan, the Czech Republic, Poland, Switzerland, and the United Kingdom, we investigate whether paired currencies exhibit a pattern of asymptotic dependence on ...
Viviana Fernández
core  

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

open access: yesMolecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu   +13 more
wiley   +1 more source

The impact of the 2008 Financial Crisis on the Food-Energy-Agricultural Inputs Nexus and implications for Economic Resilience

open access: yesNew Medit
We use multivariate copula models to assess the asymmetries in tail dependence between agricultural commodity prices (i.e., cereals and meats) and production input prices (i.e., fertilizers, seeds, animal feed and energy).
Andreas Rokopanos   +2 more
doaj   +1 more source

Circulating microRNA signatures of cachexia and cancer in Canis familiaris as a comparative oncology model for human disease

open access: yesMolecular Oncology, EarlyView.
Circulating microRNAs as biomarkers of cachexia and sex‐specific cancer in senior dogs. In 25 client‐owned dogs, four circulating miRNAs (miR‐15a, miR‐15b, miR‐16, miR‐140) were downregulated in cachexia, with miR‐16 the strongest individual biomarker (AUC = 0.899).
Soon‐Seok Park   +6 more
wiley   +1 more source

Multivariate tail dependence: further insights with an application to the Spanish banking sector

open access: yesDependence Modeling
Extending bivariate dependence concepts to higher dimensions is a challenging but essential task for a comprehensive understanding of multivariate dependence.
Durante Fabrizio   +3 more
doaj   +1 more source

Tail behavior of a sum of two dependent and heavy-tailed distributions

open access: yesJournal of Statistics and Management Systems, 2018
We consider the problem of a sum of two dependent and heavy tailed distributions through the C-convolution.
openaire   +4 more sources

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