Results 91 to 100 of about 779,578 (304)

Predicting global thermospheric neutral density during periods with high geomagnetic activity. [PDF]

open access: yesSci Rep, 2023
Forootan E   +5 more
europepmc   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

open access: yesAdvanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio   +11 more
wiley   +1 more source

A quantitative mirror on the Euribor market using implied probability density functions [PDF]

open access: yes
This paper presents a set of probability density functions for Euribor outturns in three months’ time, estimated from the prices of options on Euribor futures.
Puigvert Gutiérrez, Josep Maria   +1 more
core  

The Daytime Variations of Thermospheric Temperature and Neutral Density Over Beijing During Minor Geomagnetic Storm on 3–4 February 2022

open access: yesSpace Weather
On 3 February 2022, 38 satellites launched by SpaceX re‐entered the atmosphere and were subsequently destroyed. An investigation found that a minor geomagnetic storm occurred on 3–4 February 2022 led to a neutral density enhancement and large atmospheric
Shaoyang Li   +7 more
doaj   +1 more source

Crash risk and risk neutral densities

open access: yesJournal of Empirical Finance, 2018
“Crash risk” has been one of the major focuses in the recent asset pricing literature. Motivated by the recent literature that suggests an increase in crash risk since Fall 2008 and the recent troubles in the Euro zone, we use EUR/USD FX options for January 2, 2008 to March 18, 2015 to study option-implied risk-neutral densities (RND). We find that RND,
Ren-Raw Chen   +2 more
openaire   +3 more sources

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula   +7 more
wiley   +1 more source

Understanding and Modeling the Dynamics of Storm‐Time Atmospheric Neutral Density Using Random Forests

open access: yesSpace Weather
Atmospheric neutral density is a crucial component to accurately predict and track the motion of satellites. During periods of elevated solar and geomagnetic activity atmospheric neutral density becomes highly variable and dynamic.
K. Murphy   +7 more
doaj   +1 more source

A new method for forming approximately neutral surfaces [PDF]

open access: yesOcean Science, 2009
We introduce a simple algorithm to improve existing density surfaces to ensure that the resulting surfaces are as close to neutral as possible. This means the slopes at any point on the surfaces are close to neutral tangent planes – the directions along ...
A. Klocker   +2 more
doaj  

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