Results 291 to 300 of about 196,721 (333)
Nachtsicht ins All mit dem bloßen Auge: Sag mir, wie weit die Sterne steh'n
Beim Blick in den Nachthimmel sehen wir ohne optische Hilfsmittel und abhängig von der lokalen Lichtverschmutzung viele Hundert bis maximal einige Tausend Sterne und auch einige Galaxien. Aber wie weit sind diese von uns entfernt? Und bis zu welchen maximalen Entfernungen können wir Objekte im Weltall mit dem bloßen Auge wahrnehmen?
Michael Vollmer
wiley +1 more source
Multi-messenger gravitational lensing. [PDF]
Smith GP +40 more
europepmc +1 more source
Cherenkov Telescope Array Observatory: Die Zukunft der Gammaastronomie
Im Jahr 1989 hat das Wipple‐Observatorium die erste Quelle hochenergetischer Gammastrahlung entdeckt. 2002 waren dann sechs Quellen bekannt, 2024 schon mehr als 300. Und das ist immer noch lediglich die Spitze des Eisbergs in der jungen Geschichte der Gammaastronomie.
Daniela Hadasch, Daniel Mazin
wiley +1 more source
A microneedle dressing incorporating copper nanocluster‐decorated magnesium silicate nanoparticles has been fabricated for treating infected diabetic wounds through initial antibacterial effects, subsequent microenvironment regulation via simultaneous hypoxia mitigation, reactive oxygen species scavenging, and angiogenesis promotion, and fibroblast ...
Shuo Tan +6 more
wiley +1 more source
Ensemble Deep Learning for Real-Bogus Classification with Sky Survey Images. [PDF]
Prommool P +3 more
europepmc +1 more source
Molecular orientation is shown to strongly influence single‐molecule surface‐enhanced Raman scattering. Using DNA‐controlled immobilization together with DFT modeling, Cy5 dyes aligned parallel or perpendicular to the DNA helix yield distinct spectra. The results highlight how field direction, surface proximity, and nanocavity effects govern spectral ...
Yuya Kanehira +7 more
wiley +1 more source
Fast neutron generation with few-cycle, relativistic laser pulses at 1 Hz repetition rate. [PDF]
Osvay K +27 more
europepmc +1 more source
Abstract We investigated the regolith parent rock (“protolith”) properties of Mare Tranquillitatis and Marius Hills on the Moon, utilizing lunar pit craters (“lua”) to contextualize observations of rock abundance and crater degradation. We discovered a significant difference in underlying materials: the region around the Tranquillitatis lua is ...
E. S. Costello +5 more
wiley +1 more source
Beta-gamma phase-amplitude coupling of scalp electroencephalography during walking preparation in Parkinson's disease differs depending on the freezing of gait. [PDF]
Kimoto Y +12 more
europepmc +1 more source
Abstract Solar Particle Events (SPEs) represent one of the most significant hazards to future crewed space missions. Accurate assessment of radiation doses received by astronauts during these events is essential for determining the shielding requirements in spacecraft and off‐planet shelter design.
Sylvain Blunier +3 more
wiley +1 more source

