Results 171 to 180 of about 1,361,829 (303)

Protocol for quantifying miRNA trafficking across the endosomal membrane

open access: yesFEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh   +2 more
wiley   +1 more source

An introduction to the generalized fractional integration

open access: yesBoletim da Sociedade Paranaense de Matemática, 2012
Summary: The purpose of the present paper is to investigate the generalized fractional integration of the generalized \(M\)-series. Some results derived by \textit{R. K. Saxena} and \textit{M. Saigo} [Fract. Calc. Appl. Anal. 8, No. 2, 141--154 (2005; Zbl 1144.26010)], \textit{St. G. Samko} et al.
openaire   +2 more sources

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

Advancements in Bullen-type inequalities via fractional integral operators and their applications. [PDF]

open access: yesHeliyon
Samraiz M   +5 more
europepmc   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

open access: yesFEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer   +7 more
wiley   +1 more source

Fractional location problems [PDF]

open access: yes
In this paper we analyze some variants of the classical uncapacitated facility location problem with a ratio as an objective function. Using basic concepts and results of fractional programming, we identify a class of one-level fractional location ...
Frenk, J.B.G.   +2 more
core  

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