Results 141 to 150 of about 71,609 (291)

A Rare Glimpse of Paleoproterozoic Sub‐Arc Mantle: The Ussuit Peridotite, West Greenland

Geochemistry, Geophysics, Geosystems
Mantle residues beneath Archean cratonic nuclei have been extensively studied, whereas less attention has been given to the mantle lithosphere beneath Proterozoic mobile belts that link these nuclei.
T. McIntyre, P. Waterton, L. Li, B. Gong, X. Zha, K. Szilas, D. G. Pearson   +6 more
doaj   +1 more source

Small‐scale elemental abundance variations in Ryugu particles from touchdown 1

Meteoritics &Planetary Science, EarlyView.
Abstract Ryugu materials closely resemble CI chondrites' mineralogical, chemical, and isotopic compositions; yet minor but resolvable differences in certain elemental abundances are evident. In this study, the bulk chemical compositions of eight individual Ryugu particles (1.5–4.3 mg) from the first touchdown site (TD1) were determined using triple ...
Karina López García, Tetsuya Yokoyama, Ikshu Gautam, Makiko K. Haba, Tsuyoshi Iizuka, Nao Nakanishi, Ryota Fukai   +6 more
wiley   +1 more source

The effects of pressure on immiscibility in metallic, core‐forming liquids: Implications for protoplanetary differentiation

Meteoritics &Planetary Science, EarlyView.
Abstract Mechanisms for metal core formation in rocky planetesimals and planetary embryos remain poorly constrained, in part due to complexities arising from immiscibility in core‐forming liquids at low pressures. To assess the pressure dependence of immiscibility and its role in protoplanetary differentiation, we performed experiments at 3 and 5 GPa ...
Geoffrey David Bromiley, Hidenori Terasaki, Matthew Varnam   +2 more
wiley   +1 more source

Fascinating single‐cell red algae: models for evolution and adaptation

New Phytologist, EarlyView.
Summary The unicellular red algae, Cyanidiophyceae, that diverged early during Archaeplastida (algal and plant) evolution, occupy a variety of extreme habitats that are inhospitable for most other eukaryotes. With the use of modern genomics and genetics methods, Cyanidiophyceae show a remarkable taxonomic diversity, share haplodiplophasic life cycles ...
Frédéric Berger, Debashish Bhattacharya, Chung Hyun Cho, Seok‐Wan Choi, Julia Van Etten, Shunsuke Hirooka, Tzu‐Yen Huang, Kyle J. Lauersen, Yongsung Lee, Shao‐Lun Liu, Shin‐ya Miyagishima, Stephen D. Rader, Daniel Schubert, Hwan Su Yoon   +13 more
wiley   +1 more source

Effects of warming on plant uptake of post‐fire nitrogen in an arctic heath tundra

New Phytologist, EarlyView.
Summary Postfire nitrogen (N) becomes increasingly important with the rising frequency of fires in arctic tundra, and climate warming is expected to accelerate plant recovery following fire. However, how plants differ in utilizing this postfire N and how their postfire N uptake responds to warming remains unknown.
Wenyi Xu, Per Lennart Ambus
wiley   +1 more source

Multi‐Elemental Analysis for Geographical Tracing of Chickpeas Produced in Nearby Locations Around a Protected Geographical Indication

Plant, Cell &Environment, EarlyView.
ABSTRACT The multi‐elemental profile has repeatedly been proposed as a reliable indicator of the geographical origin of plant‐derived foods, as mineral composition accurately reflects the local soil geochemistry and environmental factors. However, this approach may fail in distinguishing specimens from nearby locations, which are expected to be exposed
Ana Sayago, Raúl González‐Domínguez, Ángeles Fernández‐Recamales   +2 more
wiley   +1 more source

Redox controls on Cr isotopes in natural waters

, 2017
Shifts in Cr isotope fractionations due to microbial activity provide valuable insights into the mechanisms of its cycling, and can be used to quantify biogeochemically mediated redox processes in the environment. In my thesis, microbial Cr isotope fractionations were determined, with a broad range of experimental variables, including species, electron
openaire   +1 more source

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

Sedimentology, EarlyView.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti, Marta Barbarano, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli   +5 more
wiley   +1 more source

Role of BK Virus CTLs in the Treatment of BK Virus–Associated Nephropathy in Kidney‐Transplant and Hematopoietic Cell Transplant Recipients

Transplant Infectious Disease, EarlyView.
Third‐party, BK virus‐specific cytotoxic T lymphocytes (CTLs) were safe and effective in reducing viremia in kidney and stem cell transplant recipients with BK virus nephropathy. However, they did not improve kidney function. Earlier administration may be more beneficial before nephropathy and irreversible damage occur.
Amanda Olson, Ye Ethan Li, Rafet Basar, Pinaki Banerjee, Indresh Kaur, Glorette Abueg, Melihate Sylejmani, Nadima Uprety, Rejeena Shrestha, Francia Reyes Silva, Valda Page, Richard E. Champlin, Dimitrios P. Kontoyiannis, Roy F. Chemaly, Elizabeth J. Shpall, Linda Moore, Osama A. Gaber, Katayoun Rezvani, Ala Abudayyeh   +18 more
wiley   +1 more source

Stable Cr isotope compositions of modern silicate mantle reservoirs [PDF]

Goldschmidt2021 abstracts, 2021
Luise J. Wagner, Ilka Kleinhanns, Wolfgang Bach, Stephan König, Gerhard Wörner, Olivier Rouxel, Ronny Schoenberg   +6 more
openaire   +1 more source