Results 31 to 40 of about 2,849,371 (302)

Occurrence and Provenance of KREEP Components in Glassy Agglutinates From Chang'e‐5 Lunar Regolith

Geochemistry, Geophysics, Geosystems
This study investigates the petrogenesis of glassy agglutinates in a polished section of the Chang'e‐5 lunar regolith sample CE5C0800YJYX018GP through integrated petrographic, mineralogical, and geochemical analyses of four representative particles (18GP‐
Shuai Ma, Zhipeng Xia, Bingkui Miao
doaj   +1 more source

X-ray Shaping of Planetary Nebulae

Galaxies, 2018
The stellar winds of the central stars of planetary nebulae play an essential role in the shaping of planetary nebulae. In the interacting stellar winds model, the fast stellar wind injects energy and momentum, which are transferred to the nebular ...
Martín A. Guerrero
doaj   +1 more source

Geophysical evolution of planetary interiors and surfaces : Moon & Mars [PDF]

, 2013
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2013.Cataloged from PDF version of thesis.Includes bibliographical references (pages 127-138).The interiors and surfaces of the terrestrial ...
Evans, Alexander Joseph
core  

Evolution of planetary nebulae [PDF]

Astronomy & Astrophysics, 2001
We present a new synthetic model to follow the evolution of a planetary nebula (PN) and its central star, starting from the onset of AGB phase up to the white dwarf cooling sequence. The model suitably combines various analytical prescriptions to account for different (but inter-related) aspects of planetary nebulae, such as: the dynamical evolution of
MARIGO, PAOLA, GIRARDI L., GROENEWEGEN M. A. T., WEISS A.   +3 more
openaire   +3 more sources

Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora

FEBS Open Bio, EarlyView.
This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi, Alain Dolla, Frauke Baymann, Celine Rommevaux, Latifa Elantak, Helene Gaussier, Matthieu Nouailler   +6 more
wiley   +1 more source

The Wilson Cycle of the North Altyn Ocean: A Record of Subduction Initiation, Slab Rollback, and Final Closure

Geochemistry, Geophysics, Geosystems
The North Altyn ophiolitic belt was formed by the subduction–closure of the Altyn segment of the Proto–Tethys Ocean and recorded the accretion of Tarim to northern Gondwana, but the timing of initial subduction and detailed tectonic transition processes ...
Long Chen, Jinlong Yao, Guochun Zhao, Yigui Han, Qian Liu, Donghai Zhang, Xijun Zhao, Hang Yang, Wei Li   +8 more
doaj   +1 more source

On the evolution of the resonant planetary system HD 128311 [PDF]

Astronomy & Astrophysics, 2006
A significant number of the known multiple exoplanetary systems are containing a pair of giant planets engaged in a low order mean motion resonance. Such a resonant condition protects the dynamics of these planets resulting in very stable orbits. According to recent studies the capture into a resonance is the result of a planetary migration process ...
Sándor, Zs, Kley, W
openaire   +3 more sources

microRNA‐7‐5p and α‐Synuclein SAA Predict Parkinson's Disease Phenoconversion

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corroborate blood neuron‐derived extracellular vesicle (NDEV) alpha‐synuclein (αSyn), the CSF αSyn seed amplification assay (αSyn‐SAA), and blood microRNA‐7‐5p (miR‐7‐5p) as markers for Parkinson's disease (PD) phenoconversion and determine if combining these markers would help select subjects who would be more likely to phenoconvert.
Shayan Zadegan, Praveen Velammal, Kanmani Muthiah, Madhu Jatty, Christopher Adams   +4 more
wiley   +1 more source

Будущее земной эволюции известно (философствование за гранью реальности) [PDF]

Философия и космология, 2014
It is presented the hypothesis of successive historical removability during the evolution of different forms of intellect – biological, artificial, territorial ( belonging to noosphere) with the final transition into space superconsciousness.
Витол Э. А.
doaj  

A magnetic measurement technique for small rare samples: Pre-study for Chang’e-5 returned and other extraterrestrial samples

Frontiers in Earth Science, 2023
Standard-size samples are usually used for traditional paleomagnetic studies. In some cases, small irregular samples are employed considering their amount and magnetic strength as well as experiment efficiency.
Yifei Hou, Yifei Hou, Min Zhang, Kuang He, Kuang He, Zhongshan Shen, Liang Dong, Liang Dong, Yunchang Fan, Yunchang Fan, Kaixian Qi, Kaixian Qi, Shuangchi Liu, Shuhui Cai, Shuhui Cai, Huafeng Qin   +15 more
doaj   +1 more source