Results 81 to 90 of about 2,078,237 (349)

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

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

Research into the geometry of the delimbing head of cutting knives

open access: yesResearch in Agricultural Engineering, 2013
Limbing with a wedge tool as a chipless operation is accompanied by a large deformation of wood in the cutting plane, i.e. at the spot of contact with the tool face as well as in the zone adjacent to this plane.
J. Mikleš
doaj   +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

On the Comparative Behavior of Kelley's Cutting Plane Method and the Analytic Center Cutting plane Method [PDF]

open access: yes, 1996
In this paper, we explore a weakness of a specific implementation of the analytic center cutting plane method applied to convex optimization problems, which may lead to weaker results than Kelley's cutting plane method.
O. du Merle, J.-L. Goffin, J.-P. Vial
core  

New Results on Cutting Plane Proofs for Horn Constraint Systems [PDF]

open access: yes, 2019
In this paper, we investigate properties of cutting plane based refutations for a class of integer programs called Horn constraint systems (HCS). Briefly, a system of linear inequalities A * x >= b is called a Horn constraint system, if each entry in A ...
Kleine Büning, Hans   +2 more
core   +1 more source

The Analytic Center Cutting Plane Method with Semidefinite Cuts

open access: yesSIAM Journal on Optimization, 2003
Summary: We analyze an analytic center cutting plane algorithm for convex feasibility problems with semidefinite cuts. The problem of interest seeks a feasible point in a bounded convex set, which contains a full-dimensional ball with radius \(\varepsilon
Mohammad R. Oskoorouchi   +1 more
openaire   +3 more sources

A Cutting Method with Updating Approximating Sets and its Combination with Other Algorithms

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2014
For solving constrained minimization problem propose a cutting plane method which belongs to a class of cutting methods.The designed method uses an approximation of the epigraph of the objective function.
I.Ya. Zabotin, R.S. Yarullin
doaj  

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

The space complexity of cutting planes refutations.

open access: yesElectron. Colloquium Comput. Complex., 2014
We study the space complexity of the cutting planes proof system, in which the lines in a proof are integral linear inequalities. We measure the space used by a refutation as the number of linear inequalities that need to be kept on a blackboard while verifying it.
GALESI, NICOLA   +2 more
openaire   +10 more sources

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