Results 41 to 50 of about 140,123 (307)

New Permo-Carboniferous geochemical data from central Thailand: implication for a volcanic arc model [PDF]

, 1991
Current ideas and models of geotectonic reconstructions of Southeast Asia are reviewed and new data on Late Carboniferous through Middle Permian tuffites and sills from central Thailand are presented in the light of the problems of Southeast Asian ...
Altermann, Altermann, Altermann, Amstutz, Barr, Barr, Baum, Beccaluva, Buffetaut, Bunopas, Bunopas, Bunopas, Burret, Burton, Cobbing, Cooper, Damm, De Witt, Dickins, ESCAP, Fontaine, Garson, Gatinsky, Grant, Hahn, Haile, Helmcke, Helmcke, Helmcke, Ingavat-Helmcke, Macdonald, Macdonald, Macdonald, Macdonald, McElhinny, Metcalfe, Metcalfe, Metcalfe, Mitchell, Miyashiro, Miyashiro, Rao, Schermerhorn, Sengör, Shervais, Stauffer, Stauffer, Stauffer, Stöcklin, Thanasuthipitak, Tozer, Waterhouse, Wielchowsky, Winchester, Winkel, Wladyslaw Altermann, Wood, Zanettin   +57 more
core   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

Natural gas accumulation from carbonate source rock with low total organic carbon content and high maturity: a case study of the Leikoupo Formation in the western Sichuan Depression

Discover Applied Sciences
Carbonate source rocks with low total organic carbon content (LTOC) are generally considered to be challenging to form large-scale oil and gas fields independently and are even regarded as ineffective source rocks.
Xinya Yu, Parhat Zunu
doaj   +1 more source

Rare Earth Element Composition of Carbonate Rocks Afforded by LA-ICP-MS and Its Formation Environment of the Zhaidi Underground River in Guilin

Yankuang ceshi, 2016
Rare earth elements are an important indicator for studying the formation condition and environmental characteristics of sedimentary rocks. The REEs of limestone samples in the Zhaidi underground river in Guilin were determined by Laser Ablation ...
FAN Lian-jie, PEI Jian-guo, ZHAO Liang-jie, LIN Yong-sheng, LU Li, WANG Zhe   +5 more
doaj   +1 more source

Bedrock and soil geochemistry influence the content of chemical elements in wild edible mushrooms (Morchella group) from South Italy (Sicily) [PDF]

, 2019
Chemical elements in the samples of wild edible mushrooms of the Morchellagroup collected from different unpolluted Sicilian sites was analyzed by the ICP-MS (method) to detect the content of their minerals and determine whether soil geology and ...
Alessandro Saitta, Elia Ambrosio, Maria Grazia Alaimo   +2 more
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Unusual, basin-scale, fluid–rock interaction in the Palaeoproterozoic Onega basin from Fennoscandia : Preservation in calcite δ18O of an ancient high geothermal gradient [PDF]

, 2016
Acknowledgements We acknowledge financial support from ICDP for the drilling programme. AEF, ATB and ARP thank NERC for financial support through NE/G00398X/1. VAM thanks the Norwegian Research Council for financial support through 191530/V30.
Brasier, A. T., Fallick, A. E., Melezhik, V. A., Prave, A. R.   +3 more
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Evaluation of the Upper Paleozoic source rocks in Western Henan, China: A case study in Luoyang Basin

Energy Reports, 2021
The Upper Paleozoic coal-measure strata in the Western Henan has good unconventional oil and gas exploration prospects. However, there is a lack of systematic evaluation of potential source rocks.
Fengyu Sun, Gaoshe Cao, Zhou Xing
doaj   +1 more source

The Mountain Pass Rare-Earth Deposits [PDF]

, 1954
Rare-earth minerals were discovered near Mountain Pass in northeastern San Bernardino County, Calif., in April 1949, and in the following year the Sulphide Queen carbonate body was found.
Olson, J. C., Pray, L. C.
core