Results 1 to 10 of about 19,924 (169)

Actinide-lanthanide single electron metal-metal bond formed in mixed-valence di-metallofullerenes [PDF]

open access: yesNature Communications, 2023
Understanding metal-metal bonding involving f-block elements has been a challenging goal in chemistry. Here we report a series of mixed-valence di-metallofullerenes, ThDy@C2n (2n = 72, 76, 78, and 80) and ThY@C2n (2n = 72 and 78), which feature single ...
Yingjing Yan   +15 more
doaj   +2 more sources

C500 variants conveying complete mucosal immunity against fatal infections of pigs with Salmonella enterica serovar Choleraesuis C78-1 or F18+ Shiga toxin-producing Escherichia coli [PDF]

open access: yesFrontiers in Microbiology, 2023
Salmonella enterica serovar Choleraesuis (S. Choleraesuis) C500 strain is a live, attenuated vaccine strain that has been used in China for over 40 years to prevent piglet paratyphoid.
Guoping Liu   +9 more
doaj   +2 more sources

Salmonella encodes murein lipoproteins differing in the anchoring to peptidoglycan and intermolecular association [PDF]

open access: yesThe Cell Surface
Murein lipoprotein (Lpp), also known as Braun's lipoprotein, stabilizes the cell wall of Escherichia coli by covalently tethering the outer membrane to the peptidoglycan (PG). Unlike E.
Marcos Peñalver   +4 more
doaj   +2 more sources

Genetic diversity and core collection of Polygonati Rhizoma in China via SSR markers [PDF]

open access: yesFrontiers in Plant Science
IntroductionPolygonati Rhizoma is a Traditional Chinese medicine derived from three species of the Polygonatum Mill. (Polygonatum kingianum, Polygonatum sibiricum, and Polygonatum cyrtonema), renowned for its culinary and medicinal uses.
MingYu Zhu   +11 more
doaj   +2 more sources

A stabilization rule for metal carbido cluster bearing μ3-carbido single-atom-ligand encapsulated in carbon cage [PDF]

open access: yesNature Communications
Metal carbido complexes bearing single-carbon-atom ligand such as nitrogenase provide ideal models of adsorbed carbon atoms in heterogeneous catalysis. Trimetallic μ3-carbido clusterfullerenes found recently represent the simplest metal carbido complexes
Runnan Guan   +8 more
doaj   +2 more sources

Ex-ante fairness under constrained school choice: An experimental approach

open access: yesChina Economic Quarterly International, 2022
In a college admission mechanism, students are often matched with colleges by using a noisy signal of their true abilities (e.g., their exam scores).
Haoqi Tong, Xiaohan Zhong
doaj   +1 more source

Diffusion of potassium ions and electrical conductivity in glass for electronic optics [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
The results of a study of the electrical conductivity and diffusion of potassium ions in borate-barium glass (C78–5) – 2,2% SiO2 57,8% B2O3 8,2% K2O 19,0% BaO 3,5% CaO 8,8% Al2O3 0,5% MgO with the passage of electric current through the sample. The
Z.V. Shomakhov   +3 more
doaj   +1 more source

Synthesis, isolation, and X-ray structural characterization of trifluoromethylated C78 fullerenes: C78(2)(CF3)10/12 and C78(3)(CF3)12/14 [PDF]

open access: yesNanosystems: Physics, Chemistry, Mathematics, 2016
Four CF3 derivatives of C78, C78(2)(CF3)10/12 and C78(3)(CF3)12/14, have been isolated via HPLC from the products of high-temperature trifluoromethylation of a C76-C96 fullerene mixture or a C78 fraction. Their molecular structures were determined by single crystal X-ray crystallography using synchrotron radiation.
TAMM N.B.   +3 more
openaire   +2 more sources

Improving the Compatibility between Polymer-, Pozzolanic Cement-Based Repairing Materials and Concrete Substrate [PDF]

open access: yesEngineering and Technology Journal, 2013
In this study, the compatibility of five different cement based repair materials and substrate concrete was investigated in three stages. First stage includes studying the individual properties of repair materials, and also two types of concrete, such as
Qais J. Frayyeh   +2 more
doaj   +1 more source

ON SPECIAL FEATURES OF STUDYING ELECTRIC CONDUCTIVITY IN SPECIAL ELECTRON OPTICS GLASSES

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019
The laws of the change in the electrophysical properties of the C87 – 2, C78 – 4, C78 – 5 glasses, used in electronic optics are studied. A comparative analysis of the effect of the transmitted electric current on the formation of a new phase and the ...
Z.V. Shomakhov   +2 more
doaj   +1 more source

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