Results 21 to 30 of about 904,141 (304)

Hypervalent Iodine-Mediated Diastereoselective α-Acetoxylation of Cyclic Ketones

Frontiers in Chemistry, 2020
A binary hybrid system comprising a hypervalent iodine(III) reagent and BF3•OEt2 Lewis acid was found to be effective for the diastereoselective α-acetoxylation of cyclic ketones.
Jiashen Tan, Weiqin Zhu, Weiping Xu, Yaru Jing, Yaru Jing, Zhuofeng Ke, Yan Liu, Keiji Maruoka, Keiji Maruoka   +8 more
doaj   +1 more source

The effect of Tb substitution for Ni on microstructure, martensitic transformation and cyclic stability of elastocaloric effect in Ni–Mn–Sn magnetic shape memory alloys

Journal of Materials Research and Technology, 2022
Cyclic stability of elastocaloric effect is the key factor that restricts the elastocaloric cooling application of Ni–Mn–Sn alloys fabricated by the conventional melting technique.
Wanyuan Gui, Yuhai Qu, Yuxian Cao, Yunzhi Zhao, Chenxu Liu, Qing Zhou, Jie Chen, Yahui Liu   +7 more
doaj   +1 more source

A Power Associative Loop Structure for the Construction of Non-Linear Components of Block Cipher

IEEE Access, 2020
In the symmetric key cryptography, the purpose of the substitution box is to generate confusion and hence improve the security of the whole cryptosystem.
Sadam Hussain, Sajjad Shaukat Jamal, Tariq Shah, Iqtadar Hussain   +3 more
doaj   +1 more source

DFT Studies of New Class of Single-Headed Nucleosides Derived from the D-glucaric Acid

Scientific Journal of King Faisal University: Basic and Applied Sciences, 2020
The nucleoside analogues can be conveniently classified into cyclic or acyclic analogues. The goal of this study is to anticipate the structural and electronic properties of new single-headed acyclo-C-nucleosides derived from the D-glucaric acid which ...
Sarah Amara, Noureddine Tchouar, Adil A. Othman   +2 more
doaj   +1 more source

Cyclic Voltammetry Studies on Substituted Arenesulfonhydrazides [PDF]

Journal of Chemical Research, 2000
Additional Z and Boc groups on the vicinal nitrogen of sulfonyl hydrazines have no significant effect on the cathodic potential of the sulfonyl functions as measured by cyclic voltammetry, whereas a Boc group on the geminal nitrogen invariably gives rise to shifts of about 0.2 V to less negative potential similar to those previously observed for ...
Ragnarsson, Ulf, Grehn, Leif, Maia, Hernâni Lopes Silva, Monteiro, Luís S.   +3 more
openaire   +2 more sources

Synthesis, self-assembly and lipoplex formulation of two novel cyclic phosphonate lipids [PDF]

QScience Connect, 2013
Background: Synthetic cationic lipids hold much potential as gene packaging and delivery agents for the treatment of inherited and acquired life threatening diseases, such as cancer, AIDS, cardiovascular diseases, and certain autoimmune disorders ...
JenniferYeh, ElenaTamarkina, NadaAbdul Khalique, LijiRaju, Michael D.Pungente   +4 more
doaj   +1 more source

Nucleophilic Substitution at the Guanidine Carbon Center via Guanidine Cyclic Diimide Activation

, 2021
Despite the electron-deficient nature of the guanidine carbon centers, nucleophilic reactions at these sites have been underdeveloped because of the resonance stabilization of the guanidine group.
Taeyang An (9017420), Taeyang An, Yan Lee (79347), Yan Lee   +3 more
core   +1 more source

Cyclic AMP signalling in pancreatic islets [PDF]

, 2010
Cyclic 3'5'AMP (cAMP) is an important physiological amplifier of glucose-induced insulin secretion by the pancreatic islet β-cell, where it is formed by the activity of adenylyl cyclases, which are stimulated by glucose, through elevation in ...
Pyne, Nigel J., Ong, Wee Kiat, Furman, Brian   +2 more
core   +3 more sources

Agonist/Antagonist Activity of Oxytocin Variants Obtained from Free Cyclic Peptide Libraries Generated via Amino Acid Substitution

, 2021
We established a method for synthesizing a free cyclic peptide library via peptide array synthesis to demonstrate the sequence activity of cyclic peptides.
Kazunori Shimizu (149471), Akihito Ochiai (3127413), Kazunori Shimizu, Remi Kinoshita (11663500), Hiroyuki Honda (4713), Akihito Ochiai, Takahiro Shibata (433256), Ikko Kozaki (11663503), Takahiro Shibata, Ikko Kozaki, Remi Kinoshita, Hiroyuki Honda   +11 more
core   +1 more source

Single nucleotide polymorphisms of human STING can affect innate immune response to cyclic dinucleotides.

PLoS ONE, 2013
The STING (stimulator of interferon genes) protein can bind cyclic dinucleotides to activate the production of type I interferons and inflammatory cytokines.
Guanghui Yi, Volker P Brendel, Chang Shu, Pingwei Li, Satheesh Palanathan, C Cheng Kao   +5 more
doaj   +1 more source