Results 61 to 70 of about 4,057,470 (304)

Strong Longitudinal and Latitudinal Differences of Ionospheric Responses in North American and European Sectors During the 10–11 October 2024 Geomagnetic Storm

open access: yesRemote Sensing
This study examines the spatiotemporal evolution of midlatitude ionospheric disturbances during the intense geomagnetic storm on 10–11 October 2024, focusing on the North American and European sectors.
Xinyue Luo   +3 more
doaj   +1 more source

Situating Kant’s Pre-Critical Monadology: Leibnizian Ubeity, Monadic Activity, and Idealist Unity [PDF]

open access: yes, 2016
This essay examines the relationship between monads and space in Kant’s early pre-critical work, with special attention devoted to the question of ubeity, a Scholastic doctrine that Leibniz describes as “ways of being somewhere”. By focusing attention on
Slowik, Edward
core  

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Johnson Space Center software reuse activity [PDF]

open access: yes
There is a strong operational interest in reuse and commonality at the Johnson Space Center (JSC). Although commonality and reuse were not emphasized in the Space Shuttle Orbiter Project, it is a major goal for Space Station Freedom and the Software ...
Gorman, Steve
core   +1 more source

An automata group of intermediate growth and exponential activity

open access: yes, 2017
We give a new example of an automata group of intermediate growth. It is generated by an automaton with 4 states on an alphabet with 8 letters.
Brieussel, Jérémie
core   +3 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

ISNet: Decomposed Dynamic Spatio‐Temporal Neural Network for Ionospheric Scintillation Forecasts

open access: yesSpace Weather
Accurate prediction of ionospheric scintillation is essential for ensuring the reliability of spaceborne and ground‐based radio wave technology infrastructures, including but not limited to navigation and communication systems.
Zhixu Gao   +8 more
doaj   +1 more source

Three-dimensional spectral analysis of gravity waves from airglow observations over Northwest China

open access: yesEarth and Planetary Physics
The three-dimensional spectral analysis method was applied to airglow data from September 2023 to August 2024 derived from an OH airglow imager located at the Hejing station (42.79°N, 83.73°E) to study the propagation characteristics of gravity waves ...
QinZeng Li   +5 more
doaj   +1 more source

Public Space: Activation v. De-Activation

open access: yesNew Instrumentalities, 2018
Historically, the great cities of the world have built public spaces that have often been used as venues for spectacle, and displays of power and status. These public venues are part of the identity of these cities and have an importance and influence far beyond their physical dimensions or geometric shapes.
Clifton C. Ellis, David J. Isern
openaire   +1 more source

Cool Stars and Space Weather

open access: yes, 2014
Stellar flares, winds and coronal mass ejections form the space weather. They are signatures of the magnetic activity of cool stars and, since activity varies with age, mass and rotation, the space weather that extra-solar planets experience can be very ...
Alvarado, J.   +10 more
core  

Home - About - Disclaimer - Privacy