Results 61 to 70 of about 130,478 (251)

Best Proximity Point forα-ψ-Proximal Contractive Multimaps

open access: yesAbstract and Applied Analysis, 2014
Extendemos las nociones de contracción α-ψ-proximal y admisibilidad α-proximal a mapas multivaluados y luego, utilizando estas nociones, obtenemos algunos de los mejores teoremas de puntos de proximidad para mapeos multivaluados. Nuestros resultados amplían algunos resultados recientes de Jleli y los que figuran en ellos. Algunos ejemplos se construyen
Muhammad Usman Ali   +2 more
openaire   +2 more sources

Transcripts enriched in codons that trigger P‐site tRNA‐mediated mRNA decay possess stable mRNA

open access: yesFEBS Open Bio, EarlyView.
PTMD codons were first described by Mendel et al. as mediators of an mRNA decay pathway dependent on the human protein CNOT3, homologous to yeast Not5. Our findings confirm that PTMD codons destabilize transcripts; however, unlike in yeast, the human pathway specifically targets and slightly destabilizes primarily stable mRNAs.
Rodolfo Lopes Carneiro   +1 more
wiley   +1 more source

Best proximity points for p-summing cyclic orbital Meir–Keeler contractions

open access: yesNonlinear Analysis, 2015
We generalize the cyclic orbital Meir–Keeler contractions, which were introduced by S. Karpagam and S. Agrawal in the context of p-summing maps. We found sufficient conditions for these new type of maps, that ensure the existence and uniqueness of fixed ...
Boyan Zlatanov
doaj   +1 more source

Best proximity points for proximal contractions

open access: yes, 2012
In this paper we improve and extend some best proximity point results concerning the so-called proximal contractions. Specifically, compactness assumptions under the sets A and B are removed to consider completeness conditions instead.
openaire   +4 more sources

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

open access: yesFEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Random Best Proximity Points for α-Admissible Mappings via Simulation Functions

open access: yesMathematics, 2018
In this paper, we introduce a new concept of random α -proximal admissible and random α - Z -contraction. Then we establish random best proximity point theorems for such mapping in complete separable metric spaces.
Chayut Kongban   +2 more
doaj   +1 more source

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

Best proximity points and fixed points for p-summing maps [PDF]

open access: yesFixed Point Theory and Applications, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Petric, Mihaela, Zlatanov, Boyan
openaire   +1 more source

Structure–Function Decoupling of the Sensorimotor and Default Mode Networks in Black Americans With MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano   +11 more
wiley   +1 more source

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