Results 21 to 30 of about 8,600,070 (262)
Magnetic Field Signatures of Intermediate-sized Impact Craters on Mars
The Astrophysical Journal, 2023 Magnetic field signatures over impact craters provide constraints for the history of the Martian dynamo. Due to limitations of the spatial resolution of magnetic field models, previous studies primarily focused on large impact craters (mostly ≥ 500 km in
Kuixiang Zhang +7 more
doaj +1 more source
Dayside Transient Phenomena and Their Impact on the Magnetosphere and Ionosphere
Space Science Reviews, 2022 AbstractDayside transients, such as hot flow anomalies, foreshock bubbles, magnetosheath jets, flux transfer events, and surface waves, are frequently observed upstream from the bow shock, in the magnetosheath, and at the magnetopause. They play a significant role in the solar wind-magnetosphere-ionosphere coupling.
Zhang, Hui +19 more
openaire +6 more sources
The manifestation of dryness and drought phenomena at the beginning of the 21-st century and their impact in the Republic of Moldova [PDF]
Present Environment and Sustainable DevelopmentThe aridification of the climate at the regional-european level led to the intensification and increase in the frequency of dryness and drought phenomena, including in the Republic of Moldova.
Valeriu CAZAC, Igor CODREANU
doaj +1 more source
AerospaceRubble-pile asteroids may be the type of near-Earth object most likely to threaten Earth in a future collision event. Small-scale impact experiments and numerical simulations for large-scale impacts were conducted to clarify the size ratio of the boulder/
Wenjin Liu +7 more
doaj +1 more source
Ejecta Evolution Following a Planned Impact into an Asteroid: The First Five Weeks
The Astrophysical Journal Letters, 2023 The impact of the Double Asteroid Redirection Test spacecraft into Dimorphos, moon of the asteroid Didymos, changed Dimorphos’s orbit substantially, largely from the ejection of material.
Theodore Kareta +87 more
doaj +1 more source
Experimental Investigation of Gas Phase and Surface Phenomena in a Seeded Plasma [PDF]
, 1963 This thesis deals with some recent experiments conducted with low-temperature seeded plasmas at atmospheric pressure. A simple arc jet was utilized to heat a steady flow of argon gas which was subsequently mixed with a small amount of potassium vapor ...
Pinchak, Alfred Cyril
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess +5 more
wiley +1 more source
A Recent Impact Origin of Saturn’s Rings and Mid-sized Moons
The Astrophysical Journal, 2023 We simulate the collision of precursor icy moons analogous to Dione and Rhea as a possible origin for Saturn’s remarkably young rings. Such an event could have been triggered a few hundred million years ago by resonant instabilities in a previous ...
L. F. A. Teodoro +7 more
doaj +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS 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
FEBS Letters, EarlyView.Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley +1 more source