Results 51 to 60 of about 11,569,212 (291)

Mobile Collaborative Information System Using Distributed Database Architecture [PDF]

open access: yes, 2009
This thesis examines the feasibility of communal information sharing between mobile devices using a distributed architecture for the underlying database topology, through research aimed at satisfying two primary objectives: i.
Cato, D. C.
core  

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Prospecting the protein design landscape

open access: yesFEBS Letters, EarlyView.
This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona   +4 more
wiley   +1 more source

Research and implementation of asynchronous compaction mechanism of distributed database based on LSM-Tree

open access: yesXibei Gongye Daxue Xuebao
With the continuous development of information technology, distributed database has become a research hotspot. Due to the limit support for SQL and defects in transaction processing and consistency of distributed databases based on NoSQL architecture ...
DU Yide, LIU Wenjie
doaj   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

Rigorous Design of Fault-Tolerant Transactions for Replicated Database Systems using Event B

open access: yes, 2006
System availability is improved by the replication of data objects in a distributed database system. However, during updates, the complexity of keeping replicas identical arises due to failures of sites and race conditions among conflicting transactions.
Yadav, Divakar, Butler, Michael
core   +1 more source

Allocation Fragments of the Distributed Database

open access: yesCommunications, 2003
The paper describes the distribution fragments of the database under a mathematical model with criterial function involving the influence of the Transaction and Concurrency proccesing in Database systems. The model could solve variants for replication of
Karol Matiasko
doaj   +1 more source

Enhanced adaptive partitioning in a distributed graph database

open access: yesJournal of Information and Telecommunication, 2021
Nowadays, open-source graph databases do not include an inherent mechanism for data relocation that would be based on their usage. They often do not offer even appropriate monitoring that could help to make such a decision.
Lucie Svitáková   +2 more
doaj   +1 more source

Soft motions encoded by the fold and mediated by conserved hinge sites drive V‐ATPase allosteric machinery and autoinhibition

open access: yesFEBS Letters, EarlyView.
Vacuolar H+‐ATPase (V‐ATPase) is a multisubunit rotary proton pump that acidifies intracellular compartments. Using elastic network models, we identified conserved hinge residues that govern its large‐scale functional motions. We show that intrinsically encoded ‘soft modes’ drive critical functional transitions, including rotary catalysis and ...
Diksha Parwana   +3 more
wiley   +1 more source

Formal Development of a Total Order Broadcast for Distributed Transactions using Event-B

open access: yes, 2009
. In a replicated database system, copies of the database are kept across several sites for fault-tolerance and availability. Data access in such systems is usually done within a transactional framework.
Yadav, Divakar   +3 more
core   +1 more source

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