Results 21 to 30 of about 7,441 (174)

Structure–activity relationship of pyrazol-4-yl-pyridine derivatives and identification of a radiofluorinated probe for imaging the muscarinic acetylcholine receptor M4

Acta Pharmaceutica Sinica B, 2023
There is an accumulating body of evidence implicating the muscarinic acetylcholine receptor 4 (M4) in schizophrenia and dementia with Lewy bodies, however, a clinically validated M4 positron emission tomography (PET) radioligand is currently lacking.
Ahmed Haider, Xiaoyun Deng, Olivia Mastromihalis, Stefanie K. Pfister, Troels E. Jeppesen, Zhiwei Xiao, Vi Pham, Shaofa Sun, Jian Rong, Chunyu Zhao, Jiahui Chen, Yinlong Li, Theresa R. Connors, April T. Davenport, James B. Daunais, Vahid Hosseini, Wenqing Ran, Arthur Christopoulos, Lu Wang, Celine Valant, Steven H. Liang   +20 more
doaj   +1 more source

A wearable fetal movement detection system for pregnant women

Frontiers in Medicine, 2023
A wearable device-based fetal movement detection system for pregnant women is proposed to resolve the problems of low accuracy of fetal movement detection by fetal heart monitor, difficulties of fetal movement monitoring by pregnant women in person, and ...
Manping Qin, Yong Xu, Yubao Liang, Tie Sun, Tie Sun   +4 more
doaj   +1 more source

Analysis and Comparison of Table-based Arithmetic to Boolean Masking

Transactions on Cryptographic Hardware and Embedded Systems, 2021
Masking is a popular technique to protect cryptographic implementations against side-channel attacks and comes in several variants including Boolean and arithmetic masking.
Michiel Van Beirendonck, Jan-Pieter D’Anvers, Ingrid Verbauwhede   +2 more
doaj   +1 more source

Memory Efficient Implementation of Modular Multiplication for 32-bit ARM Cortex-M4

Applied Sciences, 2020
In this paper, we present scalable multi-precision multiplication implementation and scalable multi-precision squaring implementation for 32-bit ARM Cortex-M4 microcontrollers.
Hwajeong Seo
doaj   +1 more source

Subtle changes in striatal muscarinic M1 and M4 receptor expression in the DYT1 knock-in mouse model of dystonia.

PLoS ONE, 2019
In early-onset generalized torsion dystonia, caused by a GAG deletion in TOR1A (DYT1), enhanced striatal cholinergic activity has been suggested to be critically involved. Previous studies have shown increased acetylcholine levels in the striatum of DYT1
Franziska Richter, Laura Klein, Christin Helmschrodt, Angelika Richter   +3 more
doaj   +1 more source

Threshold Implementations in Software: Micro-architectural Leakages in Algorithms

Transactions on Cryptographic Hardware and Embedded Systems, 2023
This paper provides necessary properties to algorithmically secure firstorder maskings in scalar micro-architectures. The security notions of threshold implementations are adapted following micro-processor leakage effects which are known to the ...
John Gaspoz, Siemen Dhooghe
doaj   +1 more source

Revisiting Keccak and Dilithium Implementations on ARMv7-M

Transactions on Cryptographic Hardware and Embedded Systems
Keccak is widely used in lattice-based cryptography (LBC) and its impact to the overall running time in LBC scheme can be predominant on platforms lacking dedicated SHA-3 instructions. This holds true on embedded devices for Kyber and Dilithium, two LBC
Junhao Huang, Alexandre Adomnicăi, Jipeng Zhang, Wangchen Dai, Yao Liu, Ray C. C. Cheung, Çetin Kaya Koç, Donglong Chen   +7 more
doaj   +1 more source

Secure HIGHT Implementation on ARM Processors

Mathematics, 2021
Secure and compact designs of HIGHT block cipher on representative ARM microcontrollers are presented in this paper. We present several optimizations for implementations of the HIGHT block cipher, which exploit different parallel approaches, including ...
Hwajeong Seo, Hyunjun Kim, Kyungbae Jang, Hyeokdong Kwon, Minjoo Sim, Gyeongju Song, Siwoo Uhm, Hyunji Kim   +7 more
doaj   +1 more source

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

The Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro, Jeffrey A. Wilson Mantilla, Jhonata H. A. Martins, Fabiano V. Iori, Leonardo S. Paschoa, Alberto B. Carvalho, Joseli M. Piranha, Hussam Zaher   +7 more
wiley   +1 more source

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source