Results 61 to 70 of about 51,602 (210)
JWST Imaging of the Closest Globular Clusters—V. The White Dwarfs Cooling Sequence of M4
Astronomische Nachrichten, Volume 346, Issue 2, February 2025.ABSTRACT We combine infrared (IR) observations collected by the James Webb Space Telescope with optical deep images by the Hubble Space Telescope taken ~20 years earlier to compute proper‐motion membership for the globular cluster (GC) M4 (NGC 6121) along its entire white dwarf (WD) cooling sequence (CS).
Luigi R. Bedin +11 more
wiley +1 more source
El método de análisis y síntesis y el descubrimiento de Neptuno
Estudios de Filosofía, 2017 El descubrimiento de Neptuno fue uno de los mayores logros de la astronomía del siglo XIX. Armados con las herramientas del cálculo y con las observaciones del movimiento anómalo de Urano, Adams y Le Verrier determinaron, independientemente, la posible ...
Sebastián Molina Betancur
doaj +1 more source
Geophysical Research Letters, Volume 52, Issue 2, 28 January 2025.Abstract This study uses multiple ground and satellite‐based measurements to investigate the extreme ionospheric response to the Mother's Day storm on May 10–11, 2024. Prompt penetration electric field caused a significant enhancement in the ionospheric vertical drift (∼ ${\sim} $ 95 m/s) and the equatorial electrojet strength (∼ ${\sim} $ 275 nT) over
Diptiranjan Rout +8 more
wiley +1 more source
Journal of Polymer Science, Volume 63, Issue 2, Page 393-405, 15 January 2025.ABSTRACT Stimuli‐responsive polymers stand out for their ability to respond to small environmental changes. One of the most representative thermo‐sensitive materials is poly(N‐isopropyl acrylamide) (PNIPAm), which presents reversible phase transitions close to the human body temperature.
S. P. Fernandez Bordín +5 more
wiley +1 more source
Controlled Drug Release Systems for Cerebrovascular Diseases
Advanced Therapeutics, Volume 8, Issue 1, January 2025.Today, controlled drug delivery systems for cerebrovascular and neurological diseases have been greatly optimized. This review highlights the importance of precise drug targeting and the underlying mechanisms of these delivery systems, as well as their potential to improve therapeutic outcomes and minimize adverse effects.
Celia Martín‐Morales +4 more
wiley +1 more source
La Astronomía y su enseñanza en la Educación Básica y Media
Revista Científica, 2019 Se presentan varias investigaciones en el campo de la Astronomía y su enseñanza en la Educación Básica y media llevadas a cabo por el Departamento de Física de la Universidad Pedagógica Nacional, Colombia.
Rosa Inés Pedreros Martínez
doaj
Il n’y a pas de progrès. Vueltas y revueltas de Louis-Auguste Blanqui
Co-herencia: Revista de Humanidades, 2017 Aunque política y ciencia constituyen hoy en día ramas casi antagónicas del conocimiento humano -acaso combinables en ámbitos ficcionales como el cine y la literatura-, la relación entre filosofía política y astronomía es una constante histórica que ...
José María de Luelmo Jareño
doaj +1 more source
The southern molecular environment of SNR G18.8+0.3 [PDF]
, 2015 In a previous paper we have investigated the molecular environment towardsthe eastern border of the SNR G18.8+0.3. Continuing with the study of thesurroundings of this SNR, in this work we focus on its southern border, whichin the radio continuum ...
Celis Peña, Mariela Fernanda +6 more
core +2 more sources
Andrés Bello y la difusión de la astronomía: Educación y retórica científica
Asclepio: Revista de Historia de la Medicina y de la Ciencia, 2017 En este trabajo se analizan los textos de divulgación astronómica escritos por Andrés Bello entre 1810 y 1848, desde sus propósitos educativos y su expresión retórica, proponiendo que aquellos se enfocan en mostrar el progreso de la astronomía -tanto en ...
Verónica Ramírez Errázuriz +1 more
doaj +1 more source
Advanced Engineering Materials, Volume 26, Issue 24, December 2024.Biological barriers prevent nanotherapeutics successful accumulation at target cells, limiting diagnosis and treatment responses. The surface of magnetic nanodiscs in a spin‐vortex ground state is modified with polyethylene glycol (PEG) molecules, which allow a reduction of the macrophage's uptake, while maintaining the nanodiscs’ biocompatibility.
Ricardo Magalhães +7 more
wiley +1 more source