Results 91 to 100 of about 1,062,553 (301)

Negotiating in a Foreign Land: Understanding the Curious Interactions Between Intracellular Mitochondria and Internalized Nanoparticles

open access: yesAdvanced Materials Interfaces, EarlyView.
Therapeutic nano‐drug delivery systems interact with cellular mitochondria in a multitude of ways. While the complexity of such interactions disrupts the mitochondrial electron transport chain and increases reactive oxygen species production, thereby contributing to nanoparticle toxicity, they also present unique theranostic opportunities in diseases ...
Sourav Bhattacharjee
wiley   +1 more source

Secular Perturbations from Exterior Giants Strongly Influence Gap Complexity in Peas-in-a-pod Exoplanetary Systems

open access: yesThe Astrophysical Journal
It has been demonstrated that systems of tightly packed inner planets with giant exterior companions tend to have less regular orbital spacings than those without such companions. We investigate whether this observed increase in the gap complexity of the
Joseph R. Livesey, Juliette Becker
doaj   +1 more source

When and why formation of large bodies in circumstellar discs could take place?

open access: yesEPJ Web of Conferences, 2013
We outlined the scenario of the planetary system formation, where large bodies are formed on the stage of massive discs. On this stage the whole of factors: chemical composition, chemical catalytic reactions, the disc self- gravitation, the increased ...
Stadnichenko Olga A.   +2 more
doaj   +1 more source

Planetary Systems Around Red Giants and Formation of Planetary Nebulae [PDF]

open access: yesSymposium - International Astronomical Union, 2003
The effects of planetary systems around pre-AGB and AGB stars on their pulsations, optical spectra and on the shape of future planetary nebulae are discussed. The physical phenomena considered include include gas drag on the planet embedded in the ever denser circumstellar gas of a red giant and shock waves arising.
openaire   +1 more source

Stretchable and Strain‐Tolerant Gold‐Coated Fibrous Biosensor for Superoxide Anion Monitoring

open access: yesAdvanced Materials Technologies, EarlyView.
A breathable, stretchable gold nanomesh–TPU fiber platform is developed via controlled electroless deposition, enabling uniform through‐thickness conductivity while preserving porosity. Functionalized with superoxide dismutase, the system achieves selective, real‐time electrochemical detection of superoxide with high sensitivity, mechanical durability,
Jafar M. Batayneh, Ahyeon Koh
wiley   +1 more source

Streaming Torque in Dust–Gas Coupled Protoplanetary Disks

open access: yesThe Astrophysical Journal
We investigate the migration of low-mass protoplanets embedded in dust–gas coupled protoplanetary disks. Linear calculations are performed with respect to the Nakagawa–Sekiya–Hayashi (NSH) equilibrium within a shearing sheet. We find that the dusty quasi-
Qiang Hou, Cong Yu
doaj   +1 more source

Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): Dynamical Evidence of a Spiral-Arm-Driving and Gap-Opening Protoplanet from SAO 206462 Spiral Motion

open access: yesUniverse
In the early stages of planetary system formation, young exoplanets gravitationally interact with their surrounding environments and leave observable signatures on protoplanetary disks.
Chen Xie   +10 more
doaj   +1 more source

Філософсько-освітні перспективи пізнання Всесвіту та виховання духовних людей космічно-інопланетного майбутнього [PDF]

open access: yesФилософия и космология, 2013
In clause an object of research are prospects of the further knowledge of the world and scientific and technical development of a civilization during an epoch of modern information-highly technological progress.
Поліщук Н. В.
doaj  

Planetary Sciences, Geodynamics, Impacts, Mass Extinctions, and Evolution: Developments and Interconnections

open access: yesInternational Journal of Geophysics, 2016
Research frontiers in geophysics are being expanded, with development of new fields resulting from technological advances such as the Earth observation satellite network, global positioning system, high pressure-temperature physics, tomographic methods ...
Jaime Urrutia-Fucugauchi   +1 more
doaj   +1 more source

Silicon isotope variations in the inner solar system: Implications for planetary formation, differentiation and composition

open access: yes, 2013
Accurate and precise Si isotope measurements were obtained using magnesium doping and high-resolution plasma source mass spectrometry for samples representative of the Earth, as well as lunar samples, meteorites from Mars (SNC), eucrites, a howardite ...
T. Zambardi   +5 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy