Results 31 to 40 of about 19,633 (239)
Biochemistry and Molecular Biology Education, EarlyView.ABSTRACT Traditional biochemistry instruction often emphasizes mechanistic detail, that is, how molecules and pathways function, without equally addressing why they have their present forms. This fact‐centered approach can leave students overwhelmed and disconnected from the broader scientific narrative.
Alberto Vázquez‐Salazar
wiley +1 more source
Nitrogen‐isotopic compositions of IIIE iron meteorites [PDF]
Meteoritics & Planetary Science, 2000 Abstract— The (compositionally) closely related iron meteorite groups IIIE and IIIAB were originally separated based on differences in kamacite bandwidth, the presence of carbides only in the IIIE group, and marginally resolvable differences on the Ga‐Ni and Ge‐Ni diagrams.
N. SUGIURA +3 more
openaire +1 more source
ChemPhysChem, Volume 26, Issue 6, March 15, 2025.The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida +3 more
wiley +1 more source
IUCrJ, 2020 Icosahedral quasicrystals (i-phases) in the Al–Cu–Fe system are of great interest because of their perfect quasicrystalline structure and natural occurrences in the Khatyrka meteorite. The natural quasicrystal of composition Al62Cu31Fe7, referred to as i-
Jinping Hu +3 more
doaj +1 more source
Dual isotopic composition of methane in Murchison meteorite [PDF]
, 2001 Dual isotopic composition (H and C) of methane extracted from a small sample of Murchison meteorite reveals a deuterium enrichment for this molecule, indicating the presence of interstellar ...
Butterworth, A. L. +2 more
core
Coordinated analysis of two graphite grains from the CO3.0 LAP 031117 meteorite: First identification of a CO Nova graphite and a presolar iron sulfide subgrain [PDF]
, 2016 Presolar grains constitute remnants of stars that existed before the formation of the solar system. In addition to providing direct information on the materials from which the solar system formed, these grains provide ground-truth information for ...
Amari, S. +7 more
core +3 more sources
Analytical Characterization of Quantum Dot Enhancement Films in Commercial Displays
Helvetica Chimica Acta, EarlyView.Colloidal quantum dots (QDs) are increasingly used in displays, yet many compositions are regulated due to hazardous metal content. Their accurate identification and assessment are therefore essential. Here, a multimodal analytical workflow centered on LA‐ICP‐MS enables spatially resolved identification and classification of QDs in commercial quantum ...
Dylan Käser +10 more
wiley +1 more source
The Plasma Spectroscopic Study of Dergaon Meteorite, India
Molecules, 2020 Meteorites are the recoverable portions of asteroids that reach the surface of the Earth. Meteorites are rare extraterrestrial objects studied extensively to improve our understanding of planetary evolution.
Abhishek K. Rai +7 more
doaj +1 more source
Hydrogen isotopic composition of the Tagish Lake meteorite: comparison with other carbonaceous chondrites [PDF]
, 2001 A study into the hydrogen isotopic characteristics of whole rock samples of carbonaceous chondrites and their comparison with a whole rock sample of the Tagish Lake ...
Franchi, I. A. +3 more
core
Exploring Exogenic Sources for the Olivine on Asteroid (4) Vesta
, 2015 The detection of olivine on Vesta is interesting because it may provide critical insights into planetary differentiation early in our Solar System's history.
Cloutis, Edward A. +7 more
core +1 more source