Results 91 to 100 of about 311,651 (309)

A note on the split rank of intersection cuts [PDF]

open access: yes
In this note, we present a simple geometric argument to determine a lower bound on the split rank of intersection cuts. As a first step of this argument, a polyhedral subset of the lattice-free convex set that is used to generate the intersection cut is ...
SANTANU, Dey
core  

Frequency Invariant Beamforming in Subbands

open access: yes, 2004
In this paper, two subband implementations of a frequency invariant beamformer (FIB) are studied. In the first structure, the received array signals are split into subbands and an FIB is operated in each of the corresponding decimated subbands, with a ...
Weiss, S, Liu, Wei, Liu, W, Weiss, S.
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Solar p-mode frequency splittings

open access: yesThe Astrophysical Journal, 1989
Measurements of solar p-mode frequency splittings based on 100 days of solar Doppler observations are presented. The measurements have a high S/N ratio and show the dependence of splitting on radial order as well as spherical harmonic degree. The data confirm that the solar rotation rate is not constant on cylinders but is more closely represented as ...
openaire   +1 more source

Frequency splitting patterns in wireless power relay transfer

open access: yesIET Circuits, Devices & Systems, 2014
Frequency splitting patterns in low‐order wireless power relay transfer systems are analysed by the coupled‐mode theory. In addition to the V‐type splitting pattern reported widely, two new patterns, I‐type and W‐type, are introduced. Specifically, it is found that a 0‐relay system shows a V‐type or I‐type splitting; a symmetrical 1‐relay system shows ...
Wangqiang Niu   +3 more
openaire   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Frequency of probiotics consumption in the diet of adults from the area of Split-Dalmatia County

open access: yes, 2021
Pregledom znanstvene literature cilj je bio prikazati najnovije spoznaje o djelovanju probiotika te ispitati učestalost i svrhu njihovog korištenja u prehrani odraslih osoba s područja Splitsko-dalmatinske županije.
Jukić, Dora
core  

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

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

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