Results 91 to 100 of about 2,266,709 (311)

A State Dependent Regime Switching Model of Dynamic Correlations [PDF]

open access: yes
Replaced with revised version of paper 07/29/09.dynamic correlations, regime switching, state dependent probabilities, thresholds, spillovers, Research Methods/ Statistical Methods,
Tejeda, Hernan A.   +2 more
core  

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

Economic Factors Contributing to Time-Varying Conditional Correlations in Stock Returns [PDF]

open access: yes
This paper attempts to find economic and financial factors contributing to the changing correlations of stock returns. Time-varying correlations were documented in previous studies, but a few attempts have been made to investigate their evolution.
Nagayasu, Jun
core  

Variability and differences of growth vigour in the set of 36 genotypes of apricot (Prunus armeniaca L.).

open access: yesInternational Journal of Horticultural Science, 2001
Growth vigour of 36 apricot cultivars and new hybrids grafted on apricot seedling rootstock (Prunus armeniaca L.) was evaluated on the base of measurements of stem girth from the 411' to the 10th year after planting.
Z. Vachim
doaj   +1 more source

Correlation? What Correlation?

open access: yesActa Physica Polonica A, 1994
In a series of papers [1-5] we have explored the response of a one-electron atom to intense short-pulse laser fields in a reduced-dimension atom model. This 1D "atom" appears to be reasonably realistic, at least in the presence of powerful linearly polarized laser light that induces the single electron to oscillate along the polarization axis.
openaire   +1 more source

Nutrient/TOR signaling controls adipose mitochondrial transcription factor A (TFAM) to regulate organismal growth in Drosophila

open access: yesFEBS Letters, EarlyView.
Animals must match their growth rate to available nutrients. We show that in Drosophila larvae, the nutrient‐sensing TOR kinase controls growth by regulating levels of TFAM, a key regulator of mitochondrial function, in the adipose tissue. When nutrients are abundant, high TOR activity suppresses TFAM, lowering mitochondrial bioenergetic activity and ...
Shrivani Sriskanthadevan‐Pirahas   +4 more
wiley   +1 more source

Forecasting correlations during the late-2000s financial crisis: short-run component, long-run component, and structural breaks [PDF]

open access: yes
We empirically investigate the predictive power of the various components affecting correlations that have been recently introduced in the literature. We focus on models allowing for a flexible specification of the short-run component of correlations as ...
Audrino, Francesco
core  

Magneto-optical assessment of Plasmodium parasite growth via hemozoin crystal size

open access: yesScientific Reports
Hemozoin is a natural biomarker formed during the hemoglobin metabolism of Plasmodium parasites, the causative agents of malaria. The rotating-crystal magneto-optical detection (RMOD) has been developed for its rapid and sensitive detection both in cell ...
Ágnes Orbán   +10 more
doaj   +1 more source

Relationalism: From Greimas to hyperstructuralism

open access: yesSign Systems Studies, 2017
The emergence of New Realism in philosophy and the Ontological Turn in anthropology testify to the increasing attention paid in the human sciences to the topic of ‘reality’. The aim of this essay is to reread and translate Greimas’ proposal of a semiotic
Franciscu Sedda
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

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