Results 91 to 100 of about 6,954,298 (295)

Design for database access control mechanism based on blockchain

open access: yesTongxin xuebao, 2020
Aiming at the current problems of database access control,the thought of blockchain technology applied to database access control was proposed.The implementation mechanism of database access control based on blockchain was designed from several aspects ...
Yonggui FU, Jianming ZHU
doaj   +2 more sources

Verifiable multi-secret sharing schemes applicable to arbitrary access structures

open access: yesTongxin xuebao, 2007
Verifiable multi-secret sharing on general access structures was studied.A method of construct verifiable se-cret sharing schemes with arbitrary access structure was given.The verifiable multi-secret sharing schemes constructed by this method have the ...
ZHANG Fu-tai1, WANG Yu-min2
doaj  

Über die Datenakzessivität in Printwörterbüchern. Einblicke in neuere Entwicklungen einer Theorie der Wörterbuchform Über die Datenakzessivität in Printwörterbüchern. Einblicke in neuere Entwicklungen einer Theorie der Wörterbuchform

open access: yesLexikos, 2011
<p>ZUSAMMENFASSUNG: In diesem Beitrag werden die Begriffe eingeführt, die man benötigt, um das Datenakzessivitätsprofil von Printwörterbüchern genau beschreiben zu können.
Herbert Ernst Wiegand
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Probabilistic Infinite Secret Sharing

open access: yes, 2013
The study of probabilistic secret sharing schemes using arbitrary probability spaces and possibly infinite number of participants lets us investigate abstract properties of such schemes.
Csirmaz, László
core  

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Financial sector structure, governance quality, and access to finance

open access: yesCogent Economics & Finance
This paper compares financial sector concentration and competition within the same framework and examines how they relate to firms’ access to finance across different levels of reported obstacle severity.
Adele Agota Molnar
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

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