Results 31 to 40 of about 343,466 (294)

Optimistic Concurrency Control for multihop sensor networks [PDF]

2011 7th International Wireless Communications and Mobile Computing Conference, 2011
In this study, we provide a lightweight singlehop primitive, Read-All-Write-Self (RAWS), that achieves optimistic concurrency control. RAWS guarantees serializability, which simplifies implementation and verification of distributed algorithms, compared to the low level message passing model. We also present a self-stabilizing multihop extension of RAWS,
Bahadir Ismail Aydin, Onur Soysal, Murat Demirbas   +2 more
openaire   +2 more sources

A Concurrency Control Method Based on Commitment Ordering in Mobile Databases [PDF]

International Journal of Database Management Systems (IJDMS), Vol.3, No.4, November 2011, 39-53, 2011
Disconnection of mobile clients from server, in an unclear time and for an unknown duration, due to mobility of mobile clients, is the most important challenges for concurrency control in mobile database with client-server model. Applying pessimistic common classic methods of concurrency control (like 2pl) in mobile database leads to long duration ...
arxiv   +1 more source

O$|$R$|$P$|$E -- A Data Semantics Driven Concurrency Control [PDF]

International Journal On Advances in Software, volume 9, numbers 1 and 2, 2016, 2023
This paper presents a concurrency control mechanism that does not follow a 'one concurrency control mechanism fits all needs' strategy. With the presented mechanism a transaction runs under several concurrency control mechanisms and the appropriate one is chosen based on the accessed data.
arxiv  

A Prudent-Precedence Concurrency Control Protocol for High Data Contention Database Enviornments [PDF]

International Journal of Database Management Systems (IJDMS), 8(5), 1-14 (2016), 2016
In this paper, we propose a concurrency control protocol, called the Prudent-Precedence Concurrency Control (PPCC) protocol, for high data contention database environments. PPCC is prudently more aggressive in permitting more serializable schedules than two-phase locking.
arxiv   +1 more source

Electrochemical ammonia production from nitrates in agricultural tile drainage: Technoeconomic and global warming analysis

AIChE Journal, Volume 69, Issue 2, February 2023., 2023
Abstract Nitrates from agricultural wastewater are harmful to human health and result in eutrophication. Several emerging electrochemical technologies have been developed independently to enable efficient recovery and recycling of nitrate waste; however, it remains unclear whether the implementation of such combined technologies can be economically ...
Sharmila Samaroo, David P. Hickey
wiley   +1 more source

Facilitating connection to enhance college student well‐being: Evaluation of an experiential group program

American Journal of Community Psychology, Volume 70, Issue 3-4, Page 314-326, December 2022., 2022
Abstract This randomized controlled trial examined the impact of The Connection Project, an experiential, relationship‐focused intervention designed to improve school belongingness and decrease symptoms of depression and loneliness among new college students.
Meghan A. Costello, Alison G. Nagel, Gabrielle L. Hunt, Ariana J. Rivens, Olivia A. Hazelwood, Corey Pettit, Joseph P. Allen   +6 more
wiley   +1 more source

Detection of Phantom Reads in Hyperledger Fabric

IEEE Access
In concurrent transactional systems, a phantom read occurs when a transaction retrieves a set of data, and simultaneously, new data is inserted, updated, or removed from that set by one or more other transactions, leading to unexpected data being read ...
Luca Olivieri, Luca Negrini, Vincenzo Arceri, Badaruddin Chachar, Pietro Ferrara, Agostino Cortesi   +5 more
doaj   +1 more source

Polyjuice: High-Performance Transactions via Learned Concurrency Control [PDF]

arXiv, 2021
Concurrency control algorithms are key determinants of the performance of in-memory databases. Existing algorithms are designed to work well for certain workloads. For example, optimistic concurrency control (OCC) is better than two-phase-locking (2PL) under low contention, while the converse is true under high contention.
arxiv  

“Don't let anybody ever put you down culturally…. it's not good…”: Creating spaces for Blak women's healing

American Journal of Community Psychology, Volume 70, Issue 3-4, Page 352-364, December 2022., 2022
Abstract Research has highlighted the importance of Indigenous knowledge and cultural practice in healing from ongoing histories of trauma, dispossession, and displacement for Indigenous peoples in Australia and elsewhere. Connection with culture, Country, and kinship has been identified as protective factors for Aboriginal social and emotional well ...
Paola Balla, Karen Jackson, Amy F Quayle, Christopher C Sonn, Rowena K Price   +4 more
wiley   +1 more source

Machine stability and dosimetry for ultra‐high dose rate FLASH radiotherapy human clinical protocol

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background The FLASH effect, induced by ultra‐high dose rate (UHDR) irradiations, offers the potential to spare normal tissue while effectively treating tumors. It is important to achieve precise and accurate dose delivery and to establish reliable detector systems, particularly for clinical trials needed to help the clinical transfer of FLASH‐
Patrik Gonçalves Jorge, Reiner Geyer, Rémy Kinj, Luis Schiappacasse, Wendy Jeanneret‐Sozzi, Jean Bourhis, Fernanda Herrera, François Bochud, Claude Bailat, Raphaël Moeckli   +9 more
wiley   +1 more source