Results 81 to 90 of about 8,178,562 (344)

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Positive and nodal solutions for nonlinear nonhomogeneous parametric Neumann problems

open access: yesElectronic Journal of Differential Equations, 2020
We consider a parametric Neumann problem driven by a nonlinear nonhomogeneous differential operator plus an indefinite potential term. The reaction term is superlinear but does not satisfy the Ambrosetti-Rabinowitz condition.
Nikolaos S. Papageorgiou   +2 more
doaj  

Density-Matrix Renormalization-Group Analysis of Quantum Critical Points: I. Quantum Spin Chains

open access: yes, 2000
We present a simple method, combining the density-matrix renormalization-group (DMRG) algorithm with finite-size scaling, which permits the study of critical behavior in quantum spin chains.
A. Drzewiński   +81 more
core   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Data-driven spatial–temporal framework for exploring the heterogeneity and temporality of sepsis

open access: yesChinese Medical Journal
. Sepsis remains a leading cause morbidity and mortality worldwide; effective targeted therapies remain elusive due to its inherent heterogeneity and dynamic temporal evolution.
Yehan Qiu   +4 more
doaj   +1 more source

New 2--critical sets in the abelian 2--group

open access: yes, 2006
In this paper we determine a class of critical sets in the abelian {2--group} that may be obtained from a greedy algorithm. These new critical sets are all 2--critical (each entry intersects an intercalate, a trade of size 4) and completes in a top down ...
Hamalainen, Carlo
core   +1 more source

Solvation forces in Ising films with long-range boundary fields: density-matrix renormalization-group study

open access: yes, 2011
Using the quasi-exact density-matrix renormalization-group method we calculate the solvation forces in two-dimensional Ising films of thickness L subject to identical algebraically decaying boundary fields with various decay exponents p.
A. Barasiński   +5 more
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

Endothelin receptor antagonist improves donor lung function in an ex vivo perfusion system

open access: yesJournal of Biomedical Science, 2020
Background A lung transplant is the last resort treatment for many patients with advanced lung disease. The majority of donated lungs come from donors following brain death (BD). The endothelin axis is upregulated in the blood and lung of the donor after
K. Walweel   +26 more
doaj   +1 more source

Finite temperature crossovers near quantum tricritical points in metals

open access: yes, 2010
We present a renormalization group treatment of quantum tricriticality in metals. Applying a set of flow equations derived within the functional renormalization group framework we evaluate the correlation length in the quantum critical region of the ...
Bauer, J., Jakubczyk, P., Metzner, W.
core   +1 more source

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