Results 71 to 80 of about 5,655,227 (298)

Experimental constraints on kinetic and equilibrium silicon isotope fractionation during the formation of non-biogenic chert deposits [PDF]

, 2015
Silicon isotopic compositions (δ30Si) of modern and ancient siliceous sedimentary rocks provide valuable information on conditions in depositional environments, but interpretations are hampered by the lack of experimentally validated fractionation ...
van Bergen, Manfred J., Vroon, Pieter Z., Petrology, Geilert, Sonja, van den Boorn, Sander H.J.M., Roerdink, Desiree L., van den Boorn, Sander H J M, NWO-ALW Open: Exploring the Earth's earliest oceans with silicon: magnitudes of isotopic fractionation, NWO-NSO: Testing the robustness of the sulfur stable isotope biomarker and paleoredox indicator for planetary exploration   +8 more
core   +2 more sources

Metastatic niche shaped by host factors influences disseminated cancer cell fate

FEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward, Álvaro Ruiz‐Tabas, Patricia Altea‐Manzano   +2 more
wiley   +1 more source

Physical fractionation and cryo-coupe analysis of mormoder humus

, 2008
Soil micromorphology plays a key role in the research of the decomposition, storage, and mineralisation of soil organic matter. It is often difficult to study the internal fabrics and stability of soil aggregates, based on soil micromorphological ...
van Mourik, J., Blok, S.
core   +2 more sources

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

FEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Carbon isotopes in the ocean model of the Community Earth System Model (CESM1) [PDF]

Geoscientific Model Development, 2015
Carbon isotopes in the ocean are frequently used as paleoclimate proxies and as present-day geochemical ocean tracers. In order to allow a more direct comparison of climate model results with this large and currently underutilized data set, we added ...
A. Jahn, K. Lindsay, X. Giraud, N. Gruber, B. L. Otto-Bliesner, Z. Liu, E. C. Brady   +6 more
doaj   +1 more source

Photo‐induced isotopic fractionation [PDF]

, 2000
This paper presents a systematic method for the analysis of photo-induced isotopic fractionation. The physical basis for this fractionation mechanism centers on the fact that isotopic substitution alters the energy levels, molecular symmetries, spin ...
Charles E. Miller, Yung, Yuk L., Yuk L. Yung, Miller, Charles E.   +3 more
core   +1 more source

Review of Research and Application of Different Fractionation Techniques in Oil and Fat Processing

Liang you shipin ke-ji
Fat fractionation, as a key physical refining technology for enhancing oil quality and added value, has evolved from basic process optimization to innovative integration of multiple technologies.
GU Ya-xin, HE Dong-ping, ZHOU Teng, YIN Jiao-jiao   +3 more
doaj   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

Molecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka, Wioleta Cieślik, Wojciech Płaziński, Katarzyna Stępnik, Anna Boguszewska‐Czubara, Elżbieta Kot, Robert Musioł, Mateusz Jasica, Anna Mrozek‐Wilczkiewicz, Katarzyna Malarz   +9 more
wiley   +1 more source

Physical education down under: Fusion or confusion [PDF]

, 2007
At the International Council for Health, Physical Education, Recreation, Sport and Dance (ICHPER-SD) Conference held in Wellington in October 2006, the authors presented a keynote titled: Physical Education Down Under: Fusion or Confusion.
Culpan, Ian, Grant, Bevan C.
core  

REE fractionation during granite weathering and removal by waters and suspended loads: Sr and Nd isotopic evidence [PDF]

, 2001
Very few studies deal with REE (rare earth element) mobility within the system soil–soil solution–streamwater. In this article, we try to characterize the fractionation and the migration of the REE in a granite-derived soil system located in a small ...
Dominique Aubert, Aubert, Dominique, Anne Probst, Stille, Peter, Probst, Anne, Peter Stille   +5 more
core   +1 more source