Results 231 to 240 of about 1,171,988 (336)

Mountain‐top spherules: Criteria to identify natural and synthetic particles

Meteoritics &Planetary Science, EarlyView.
Abstract Natural microspherules are important tracers of geologic and environmental processes in modern and ancient deposits. However, anthropogenic contamination can dilute natural collections by releasing synthetic microspherules into the environment.
M. R. Boyd, M. J. Genge
wiley   +1 more source

The effect of terrestrial weathering on the mineralogy and petrologic (sub)types of CM chondrites explored by kinetic modeling and laboratory experiments

Meteoritics &Planetary Science, EarlyView.
Abstract Terrestrial weathering alters the chemical and isotopic composition, and mineralogy, of meteorites; its effects on ordinary chondrites are well‐studied, but relatively little is known about the susceptibility of carbonaceous chondrites. We combined laboratory experiments, whereby Chwichiya 002 (C3‐ung find), Murchison (CM2 fall) and Kolang ...
Robin L. Haller, Martin R. Lee, Mark E. Hodson   +2 more
wiley   +1 more source

Early Neolithic chipped stone implements in Hungary

Dissertationes Archaeologicae: Ex Instituto Archaeologico Universitatis de Rolando Eötvös Nominatae, 2013
doaj  

Aqueous alteration in C2‐ung Bells through the analysis of carbonates – Does a CR origin ring true?

Meteoritics &Planetary Science, EarlyView.
Abstract Bells is an ungrouped carbonaceous chondrite that has in recent years been proposed as a CR‐an. This link to CR chondrites has previously been identified through the analysis of anhydrous silicates, for example, oxygen isotopic compositions of olivine (Marrocchi et al., 2023).
L. J. Riches, M. D. Suttle, I. A. Franchi, X. Zhao, M. M. Grady   +4 more
wiley   +1 more source

From meat to raw material: the Middle Pleistocene elephant butchery site of Casal Lumbroso (Rome, central Italy). [PDF]

PLoS One
Mecozzi B, Fiore I, Giaccio B, Giustini F, Mercurio S, Monaco L, Argento A, di Sassoferrato FBCDA, Caricola I, Lemorini C, Lucchini F, Mazzini I, Palombo MR, Sardella R, Sposato A, Spinapolice EE, Alhaique F.   +16 more
europepmc   +1 more source

Comprehensive and Comparative Transcriptional Profiling of the Cell Wall Stress Response in Bacillus subtilis

Molecular Microbiology, EarlyView.
Transcriptional profiling of the primary cell envelope stress response (CESR) of Bacillus subtilis exposed to a range of cell wall‐targeting antimicrobials, combining RNAseq and high‐resolution tiling arrays. We revealed the complexity of the CESR, the contribution of extracytoplasmic function sigma factors (ECFs) and two‐component signal transduction ...
Qian Zhang, Charlène Cornilleau, Lena Friebel, Sarah Spitzner, Raphael R. Müller, Doreen Meier, Pierre Flores, Cyprien Guérin, Pierre Nicolas, Diana Wolf, Vincent Fromion, Rut Carballido‐López, Thorsten Mascher   +12 more
wiley   +1 more source

Materiality of Chipped Stone

Bulletin of the Society for Near Eastern Studies in Japan, 2009
openaire   +2 more sources

Ubiquitination‐Mediated Degradation of SlVPS29 by the SlHSFA7‐SlRNF185 Module Enhances Tomato Pollen Thermotolerance

Plant Biotechnology Journal, EarlyView.
ABSTRACT High temperature has posed significant challenges to global agriculture, markedly leading to reduced fertility and yield losses in tomato (Solanum lycopersicum). Therefore, thermotolerance‐conferring genes and loci are needed to further improve cultivated tomatoes.
Xiaolin Geng, Qinqin Yang, Hongwei Li, Xunwen Peng, Wenbo Zhang, Huihui Wang, Yushan Li, Fang Li, Quanquan Chen, Tao Lin   +9 more
wiley   +1 more source

Effect of simulated aging on the color stability and fracture resistance of lithium disilicate laminate veneers with different preparation designs. [PDF]

BMC Oral Health
Rizk A, Mahmoud N, Abdou A, Omar S.
europepmc   +1 more source