Results 161 to 170 of about 378,128 (332)
The 14 October 2023 annular solar eclipse was visible from the US Pacific coast to Brazil's east coast. NASA's Global‐scale Observations of Limb and Disk (GOLD) mission observed the first synoptic thermospheric temperature changes from a geo‐stationary ...
Saurav Aryal+6 more
doaj +1 more source
THE U. S. NAVAL OBSERVATORY ECLIPSE EXPEDITION TO SUMATRA [PDF]
Heber D. Curtis
openalex +1 more source
This review highlights recent progress in piezoelectric materials for regenerative medicine, emphasizing their ability to convert mechanical stimuli into bioelectric signals that promote tissue repair. Key discussions cover the intrinsic piezoelectric properties of biological tissues, co‐stimulation cellular mechanisms for tissue regeneration, and ...
Xinyu Wang+3 more
wiley +1 more source
Stubborn Mining: Generalizing Selfish Mining and Combining with an Eclipse Attack
Kartik Nayak+3 more
semanticscholar +1 more source
Ultra‐Fine 3D Bioprinting of Dynamic Hyaluronic Acid Hydrogel for in Vitro Modeling
3D bioprinting merges tissue engineering and additive manufacturing to create biological structures. A bioink is developed by modifying hyaluronic acid, a natural extracellular matrix polymer, with cysteine. Potassium iodide is later added to tune gelation kinetics, enabling fine printing with a 32G needle.
Shima Tavakoli+3 more
wiley +1 more source
Sol, Tierra y Luna. Movimientos relativos y sus consecuencias
Cuando se pregunta a los estudiantes por la causa de las estaciones suelen responder: "en verano estamos más próximos al Sol y en invierno estamos más lejos del Sol".
Sebastián Cardenete García
doaj
DR. MORTON, Professor of Chemistry in the University of Pennsylvania, has kindly forwarded me photographs of the phenomena of totality. By combining in the stereoscope pairs of these, separated by intervals of about half-a-minute of time, the black globe of the moon appears projected far in front of the luminous prominences and the corona, which are ...
openaire +2 more sources
Aqueous Colloidal Perovskite Quantum Emitters
Facile structural transformation‐induced in situ core‐shell self‐assembly for constructing mono‐dispersed aqueous colloidal perovskite nanocrystals, exhibiting unprecedented aqueous solution single photon emission. Abstract Aqueous solutions of nanoparticles are the cornerstones for applications in diagnostics, catalysis and more, where control over ...
Huajun He+10 more
wiley +1 more source
Studying the Radio Eclipse of Spider Pulsar J1816+4510 with the FAST
We report on the radio eclipse properties of spider pulsar J1816+4510 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The high-sensitivity FAST observations will allow us to probe much deeper into the eclipse region of this pulsar
Lunhua Shang+10 more
doaj +1 more source