Results 41 to 50 of about 491,160 (302)

Blockchain-driven distributed consensus mechanism in defensing Byzantine attack for the Internet of spectrum device [PDF]

open access: yes, 2020
To meet the requirement of the precisely spectrum sharing triggered by large-scale and ultra-dense deployment of mobile internet and internet of things,a framework based on blockchain technology for networking the massive personal wireless devices to ...
Jiachen SUN   +5 more
core   +1 more source

A Comprehensive Analysis of Blockchain Technology and Consensus Protocols Across Multilayered Framework

open access: yesIEEE Access
Blockchain, a distributed and digital ledger technology, has the potential to transform several industries from cryptocurrencies to supply chains. However, the complexity of understanding the technology can be a challenge for most people, especially for ...
Md. Rifat Hossain   +4 more
doaj   +1 more source

Assessing Blockchain Consensus and Security Mechanisms against the 51% Attack

open access: yesApplied Sciences, 2019
The 51% attack is a technique which intends to fork a blockchain in order to conduct double-spending. Adversaries controlling more than half of the total hashing power of a network can perform this attack.
Sarwar Sayeed, Hector Marco-Gisbert
doaj   +1 more source

A Secure Big Data Storage Framework Based on Blockchain Consensus Mechanism With Flexible Finality

open access: yesIEEE Access, 2023
Data security and integrity are becoming increasingly important as the volume of data being created and stored grows. A controlled third party that provides most of the existing big data security systems makes them susceptible to several security risks ...
A. Sasikumar   +5 more
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Survey of block chain

open access: yes网络与信息安全学报, 2016
With the wide spread of Bitcoin,block chain serving as the building block of digital currency becomes a hot spot in industry and academia.Due to the decentration of network,the unforgeability of block data,etc.,block chain has attracted more and more ...
Xin SHEN, Qing-qi PEI, Xue-feng LIU
doaj   +3 more sources

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

A Dual-Chain-Based Consensus Mechanism for Blockchain [PDF]

open access: yes
Consensus mechanism is the core technology of blockchain systems. Currently, a new consensus mechanism based on Proof of Contribution value and Proof of Work (PoC+PoW) has been proposed for ″non-coin″ blockchain systems.
XUAN Yizhao, ZHAO Hongwu, JIN Yu
core   +1 more source

An Online Mechanism for Multi-Unit Demand and its Application to Plug-in Hybrid Electric Vehicle Charging [PDF]

open access: yes, 2013
We develop an online mechanism for the allocation of an expiring resource to a dynamic agent population. Each agent has a non-increasing marginal valuation function for the resource, and an upper limit on the number of units that can be allocated in any ...
Parkes, David   +19 more
core   +1 more source

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