Results 121 to 130 of about 9,864,367 (308)

DGMT: A Fully Dynamic Group Signature from Symmetric-Key Primitives

open access: yesCryptography
A group signature scheme allows a user to sign a message anonymously on behalf of a group and provides accountability by using an opening authority who can “open” a signature and reveal the signer’s identity. Group signature schemes have been widely used
Mojtaba Fadavi   +3 more
doaj   +1 more source

On the S-fundamental group scheme. II [PDF]

open access: yesJournal of the Institute of Mathematics of Jussieu, 2012
AbstractThe S-fundamental group scheme is the group scheme corresponding to the Tannaka category of numerically flat vector bundles. We use determinant line bundles to prove that the S-fundamental group of a product of two complete varieties is a product of their S-fundamental groups as conjectured by Mehta and the author.
openaire   +3 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Energy-Preserving/Group-Preserving Schemes for Depicting Nonlinear Vibrations of Multi-Coupled Duffing Oscillators

open access: yesVibration
In the paper, we first develop a novel automatically energy-preserving scheme (AEPS) for the undamped and unforced single and multi-coupled Duffing equations by recasting them to the Lie-type systems of ordinary differential equations.
Chein-Shan Liu   +2 more
doaj   +1 more source

Antibiotic prophylaxis in prostate biopsy: a comparative randomized clinical assay between ciprofloxacin, norfloxacin and chloramphenicol

open access: yesInternational Brazilian Journal of Urology, 2003
OBJECTIVE: To compare, prospectively, 4 different schemes of antibiotic prophylaxis previously to transrectal prostate biopsy. MATERIALS AND METHODS: 257 patients were randomized in 4 groups: Group I: single dose of ciprofloxacin 2 hours before the ...
M Tobias-Machado   +3 more
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Antea Group Archeolgoie 2019/15

open access: yes, 2020
Antea Group projectnummer 433403 Antea Group heeft in de 17 juli 2018 tot 3 augustus 2018 een archeologisch veldonderzoek (Opgraving, variant archeologische begeleiding) uitgevoerd aan het Achterom te Groningen.
Akkerman, E. (Antea Group)   +2 more
core   +1 more source

The Forms of the Witt Group Schemes

open access: yesJournal of Algebra, 1996
Throughout this paper, let \(p\) be a fixed prime number and let \(\mathbb{F}_p\) be the prime field of characteristic \(p\). We assume that all Witt group schemes are with respect to this \(p\) and all rings are algebras over \(\mathbb{F}_p\). The purpose of this paper is to study the forms of Witt group schemes.
openaire   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

ABOUT DEVELOPMENT OF COMPUTATIONAL SCHEMES OF GROUP TARGETED KINEMATIC DEVICES FOR SOME ELASTIC SYSTEMS

open access: yesInternational Journal for Computational Civil and Structural Engineering
For some elastic systems with a finite number of degrees of freedom of mass, in which the directions of mass movement are parallel, methods have been developed for creating additional kinematic devices, the introduction of each of which targetly reduces
Leonid Lyakhovich   +3 more
doaj   +1 more source

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