Results 201 to 210 of about 1,644,826 (290)

Mikrometeorite und ihr Ursprung im Sonnensystem: Außerirdischer Staub zum Anfassen

Physik in unserer Zeit, EarlyView.
Mit einer Größe, die der Dicke eines Haares entspricht, sind Mikrometeorite kaum sichtbar für das bloße Auge. Dennoch werden sie seit etwa 150 Jahren gesammelt, und seit wenigen Jahren sogar auf unseren Hausdächern. Als Kostproben von Asteroiden oder Kometen stellen sie wertvolle Boten unseres Sonnensystems dar.
Jenny Feige
wiley   +1 more source

Martian differentiation history inferred from copper isotopes. [PDF]

Nat Commun
Wang DL, Zhu D, Xu YK, Wang SJ, Li SJ, Liu ZR, Li Y, Li Z, Tang H, Li XY, Liu JZ.   +10 more
europepmc   +1 more source

University teaching of mass spectrometry as a key practical technique within the context of a fully integrated, spiral curriculum

Rapid Communications in Mass Spectrometry, EarlyView.
Rationale Mass spectrometry (MS) is introduced to high school students in the UK in many pre‐university course syllabi. As such, we have identified the use of MS as a key technique that should be taught practically to undergraduates from the outset of their studies.
Andrew F. Worrall, Craig D. Campbell, Megan O. Midson, Malcolm I. Stewart   +3 more
wiley   +1 more source

Magnetic iron-oxide nanoparticles in the brain connected to alcohol-associated liver disease. [PDF]

Sci Rep
Kaub L, Milz S, Barapatre N, Büttner A, Michalke B, Schmitz C, Gilder SA.   +6 more
europepmc   +1 more source

Illegal Gold Mining in the Brazilian Amazon: Environmental Degradation in Yanomami Indigenous Lands, and Regulatory Failures

Sustainable Development, EarlyView.
ABSTRACT Illegal gold mining has emerged as a major sustainability threat in the Amazon, eroding Indigenous rights, forest integrity, and climate mitigation efforts. This study examines how international market incentives relate to the expansion of illegal mining and associated deforestation within the Yanomami Indigenous Territory (YIT) from 2008 to ...
Shirléia Lago Santos, Ana Claudia de Araujo Moxotó, Jurandir Moura Dutra   +2 more
wiley   +1 more source

Wavelength Dependence of fs Laser Ablation Ionisation Mass Spectrometry: a Dedicated Study on NIST SRM 664. [PDF]

Rapid Commun Mass Spectrom
Grimaudo V, Riedo A, Tulej M, Wurz P.
europepmc   +1 more source

2D Iron Oxide at the Graphene/SiC(0001) Interface

Small Methods, EarlyView.
2D iron oxide was successfully formed via intercalation of Fe and O into the graphene/SiC(0001) interface. Atomic‐resolution electron microscopy revealed that the 2D iron oxide is encapsulated by graphene and sharply interfaced with SiC. This material is suggested to exhibit antiferromagnetic behavior at low temperatures.
Ryotaro Sakakibara, Tomo‐o Terasawa, Taizo Kawauchi, Katsuyuki Fukutani, Takahiro Ito, Wataru Norimatsu   +5 more
wiley   +1 more source

The North-Eastern Europe and Northern Asia isotopic dataset of bioarchaeological samples (NEENA). [PDF]

Sci Data
Haponava V, Pickard C, Fernandes R.
europepmc   +1 more source

Titanium Detected in Liver, Kidney, Spleen, and Intestine Is Not Related to Dose, Time, or Route of Exposure to Titanium Dioxide: A Systematic Review

Environmental Toxicology, EarlyView.
ABSTRACT Titanium dioxide (TiO2), used as a food additive (labeled E171 in Europe), was withdrawn from the European market in 2022. The E171 toxicity mechanism involves its uptake, oxidative stress, DNA damage, and inflammation. It has been hypothesized that the TiO2 accumulation nanoparticles (NPs) or E171 triggers tissue damage, and some studies have
Carmen Ximena Martínez‐Escutia, Estefany I. Medina‐Reyes, Eduardo Delgado‐Armenta, Yolanda I. Chirino   +3 more
wiley   +1 more source

What the earliest evidence for life tells us about the early evolution of the biosphere. [PDF]

Philos Trans R Soc Lond B Biol Sci
Westall F.
europepmc   +1 more source