Results 71 to 80 of about 1,922 (252)

A Note on the First Integrals of Vector Fields with Integrating Factors and Normalizers

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
We prove a sufficient condition for the existence of explicit first integrals for vector fields which admit an integrating factor. This theorem recovers and extends previous results in the literature on the integrability of vector fields which are volume
Jaume Llibre, Daniel Peralta-Salas
doaj   +1 more source

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

Essential p-dimension of the normalizer of a maximal torus

open access: yes, 2011
We compute the exact value of the essential p-dimension of the normalizer of a split maximal torus for most simple connected linear algebraic groups. These values give new upper bounds on the essential p-dimension of some simple groups, including some ...
MacDonald, Mark
core   +5 more sources

Normality and automata

open access: yesJournal of Computer and System Sciences, 2015
The contribution discusses the compressibility of normal words by various finite-state devices. Roughly speaking, a normal word is an infinite word such that each given block of \(n\) letters occurs (in the limit) as often as each other block of \(n\) letters.
Verónica Becher   +2 more
openaire   +4 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

Suborbital graphs for a non-transitive action of the normalizer

open access: yes, 2019
In this paper, we investigate a suborbital graph for the normalizer of Gamma0(n) in PSL(2;R), where n will be of the form 3^2p^2, p is a prime and p > 3.
Büyükkaya, Abdurrahman   +3 more
core   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

A note on the normalizer of Sylow 2-subgroup of special linear group $SL_2(p^f)$ [PDF]

open access: yesInternational Journal of Group Theory, 2014
Let $G=SL_2(p^f)$ be a special linear group and $P$ be a Sylow $2$-subgroup of $G$, where $p$ is a prime and $f$ is a positive integer such that $p^f>3$. By $N_G(P)$ we denote the normalizer of $P$ in $G$.
Jiangtao Shi
doaj  

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Normalizers of intermediate congruence subgroups of the Hecke subgroups

open access: yesOpen Mathematics, 2017
For a square-free positive integer N, we study the normalizer of ΓΔ(N) in PSL2(ℝ) and investigate the group structure of its quotient by ΓΔ(N) under certain conditions.
Im Bo-Hae, Jeon Daeyeol, Kim Chang Heon
doaj   +1 more source

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