Results 11 to 20 of about 1,732 (146)
Ecology of Freshwater Fish, Volume 32, Issue 1, Page 209-231, January 2023., 2023 Abstract Sturgeons have a complex free‐embryo period extending from hatch to the initiation of exogenous feeding. Although available for some sturgeon species of the genus Acipenser, descriptions of the developmental stages of free embryos of the genus Scaphirhynchus are lacking.
Kimberly A. Chojnacki +4 more
wiley +1 more source
Geobiology, Volume 21, Issue 1, Page 102-118, January 2023., 2023 Abstract Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are bacterial membrane lipids that are frequently employed as paleoenvironmental proxies because of the strong empirical correlations between their relative abundances and environmental temperature and pH.
Toby A. Halamka +6 more
wiley +1 more source
Nanoscale structures formed in silicon cleavage studied with large-scale electronic structure alculations; surface reconstruction, step and bending [PDF]
Phys. Rev. B 72, 075323 (2005), 2004 The 10-nm-scale structure in silicon cleavage is studied by the quantum mechanical calculations for large-scale electronic structure. The cleavage process on the order of 10 ps shows surface reconstruction and step formation. These processes are studied by analyzing electronic freedom and compared with STM experiments.
arxiv +1 more source
What cleaves? Is proteasomal cleavage prediction reaching a ceiling? [PDF]
arXiv, 2022 Epitope vaccines are a promising direction to enable precision treatment for cancer, autoimmune diseases, and allergies. Effectively designing such vaccines requires accurate prediction of proteasomal cleavage in order to ensure that the epitopes in the vaccine are presented to T cells by the major histocompatibility complex (MHC).
arxiv
A crystal cleavage mechanism for UHV STM [PDF]
Rev. Sci. Instrum. 77, 116116 (2006), 2008 A device for UHV cleavage of crystal specimens for the use with STM has been suggested and developed. We present a device suitable for the precise cleavage of semiconductors. The device needs only small space and can be easily mounted in a small and compact UHV chamber equipped with a wobble stick manipulator.
arxiv +1 more source
Investigation of quasi-cleavage in a hydrogen charged maraging stainless steel [PDF]
arXiv, 2022 Slow strain rates tests (SSRT) were conducted on hydrogen-containing specimens of PH13-8Mo maraging stainless steel. Hydrogen-assisted subcritical quasi-cleavage cracking was shown to take place during SSRT, thus accelerating material failure. Fractographic analysis showed that quasi-cleavage is composed of flat brittle areas and rougher areas.
arxiv
Synthetic Lignin Oligomers: Analytical Techniques, Challenges, and Opportunities
ChemSusChem, EarlyView.The review begins by discussing lignin and its structural complexity, followed by challenges in elucidating depolymerization products and the analytical techniques used. It then focuses on the chemical structure of synthetic lignin oligomers, their synthesis mechanisms, and their significance in current science. Finally, scientific gaps are identified,
Myriam Rojas +4 more
wiley +1 more source
Geophysical Monograph Series, Page 97-104., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Daniele Cherniak +2 more
wiley +1 more source
Mechanochemistry: Unravelling the Impact of Metal Leaching in Organic Synthesis
ChemSusChem, EarlyView.The analysis of metal leaching from jar walls remains an overlooked aspect during the development of a mechanochemical reaction. This comprehensive study reveals the processes of metal erosion and the formation of rusty particles under intense grinding conditions, alongside their significant impact on chemical reaction efficiency, selectivity, and ...
Francesco Basoccu +2 more
wiley +1 more source
The Depositional Record, EarlyView.Abstract We very much appreciate the comments of André; Pestilho and Agustin Mors on our paper discussing the early diagenesis of the Pre‐salt carbonates (Barra Velha Formation, BVF) in the Santos Basin (Gomes et al., 2024). We welcome the opportunity to respond and to clarify our interpretations concerning dolomite formation, diagenetic timing and ...
João Paulo Borges Gomes +6 more
wiley +1 more source