Results 41 to 50 of about 401,467 (301)

Irradiation effects on microstructure, mechanical properties, and lead-bismuth eutectic corrosion resistance of alumina coating

Journal of Materials Research and Technology, 2023
A comprehensive evaluation including microstructure, mechanical properties, and lead-bismuth eutectic corrosion resistance of amorphous alumina coatings after different doses of Au2+ irradiation was done using X-ray diffraction, scanning electron ...
Yilong Zhong, Qingyu Li, Yanli Zhao, Yi Zhou, Wei Zhang, Jian Yang, Changda Zhu, Jiuguo Deng, Qingsong Chen, Sha Zhao, Hao Liu, Ning Liu, Xi Qiu, Jijun Yang   +13 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Effect of High Energy Electron Beam Irradiation on Cell Wall Degradation Related Enzyme Activities and Gene Expressions of Kiwifruit

Shipin gongye ke-ji, 2022
‘Hayward’ kiwifruits were used as the test materials to be irradiated with high energy electron beams at doses of 0 (control), 300, 400 and 500 Gy. The fruits were stored at 0~1 ℃, RH 90%~95% for 90 d.
Ruijuan LI, Shuxia YANG, Dan WANG, Tianzi HUANG, Jin LIANG, Lu ZHANG, Anwei LUO   +6 more
doaj   +1 more source

Effect of solar cell structure on the radiation resistance of an InP solar cell [PDF]

E3S Web of Conferences, 2020
Effects of electron irradiation-induced deep level defects have been studied on both n/p and p/n Indium Phosphide (InP) solar cells with very thin emitters.
Mazouz Halima, Belghachi Abderrahmane, Logerais Pierre-Olivier   +2 more
doaj   +1 more source

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

Molecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone, James Dunford, Eleanor Calcutt, Vicki Gamble, Filiz Senbabaoglu Aksu, Lorena Ligammari, Georgina Wherry, Giorgia Gaeta, John C. Christianson, Adrienne M. Flanagan, Udo Oppermann, Adam P. Cribbs   +11 more
wiley   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

A comparative study between x-rays and gamma-rays irradiation on electrical characteristics of bipolar junction transistors (BJTS) [PDF]

, 2017
Irradiation impact of gamma rays and X-rays on bipolar junction transistors (BJTs) in terms of electronic excitation due to transfer of energy and subsequent ionization, as well as energy transfer to atomic nuclei is studied using in-situ method ...
Abdul Amir, Haider F., Alias, Afishah, Chee, Fuei Pien, Salleh, Saafie, Tiwari, Anand Kumar   +4 more
core   +1 more source

Pioglitazone plus (−)‐epigallocatechin gallate: a novel approach to enhance osteogenic performance in aged bone marrow mesenchymal stem cells

FEBS Open Bio, EarlyView.
Aged human bmMSCs are seeded in the scaffold. Osteoblastic induction can slightly increase cell's bone‐forming activity to produce bone‐like tissues, shown as the sporadic xylenol orange‐stained spots (the lower left image). Notably, pioglitazone plus EGCG co‐treatment dramatically increases cell's bone‐forming activity and bone‐like tissue production (
Ching‐Yun Chen, Jia‐Ci Jhang, Chun‐Yi Peng, Quốc Cường Nguyễn, Feng‐Huei Lin, Hung‐Ming Wu, Shankung Lin   +6 more
wiley   +1 more source

Gate dielectric layer mitigated device degradation of AlGaN/GaN-based devices under proton irradiation

AIP Advances, 2023
In this study, the simulations of AlGaN/GaN-based devices, including AlGaN/GaN high electron mobility transistor (HEMT), Al2O3 metal–oxide–semiconductor high electron mobility transistor (MOSHEMT), and SiNx metal–insulator–semiconductor high electron ...
Lilai Jiang, Chengzhen Song, Yu-Ning Wu, Shiyou Chen   +3 more
doaj   +1 more source

Electron-Beam Radiation Effects in Multilayer Structures Grown with the Periodical Deposition of Si and CaF₂ on Si(111)

Materials Proceedings, 2023
The formation of CaSi2 films on Si(111) with the molecular-beam epitaxy (MBE) of CaF2 under fast electron-beam irradiation was investigated. The method of a high-planarity CaSi2 film synthesis assisted by electron-beam irradiation was developed.
Anatoly V. Dvurechenskii, Aleksey V. Kacyuba, Gennady N. Kamaev, Vladimir A. Volodin, Natalia P. Stepina, Aigul F. Zinovieva, Vladimir A. Zinovyev   +6 more
doaj   +1 more source