Results 81 to 90 of about 13,244,184 (364)

Protonophore activity of short‐chain fatty acids induces their intracellular accumulation and acidification

FEBS Letters, EarlyView.
The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang, Frans Bianchi, Geert van den Bogaart   +2 more
wiley   +1 more source

Subclasses of Analytic Functions Defined by Generalized Hypergeometric Functions

Journal of Function Spaces, 2016
We introduce a new subclass of analytic functions in the unit disk U, defined by using the generalized hypergeometric functions, which extends some previous well-known classes defined by different authors.
Badr S. Alkahtani, Saima Mustafa, Teodor Bulboacă   +2 more
doaj   +1 more source

Second Hankel determinant for a class of analytic functions defined by Komatu integral operator [PDF]

Rendiconti di Matematica e delle Sue Applicazioni, 2020
In this paper, the authors obtain an upper bound of second Hankel determinant for a new class of analytic functions defined through the Komatu integral operator. Our result extends the corresponding previously known results.
Ram N. Mohapatra, Trailokya Panigrahi
doaj  

A stepwise emergence of evolution in the RNA world

FEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

On Classes of Analytic Functions Containing Generalization of Integral Operator [PDF]

, 2011
New classes containing generalization of integral operator are introduced. Characterization and other properties of these classes are investigated. Further, Fekete-Szego functional for these classes are also given.DOI : http://dx.doi.org/10.22342/jims.17.
Darus, M. (Maslina), Ibrahim, R. W. (Rabha)   +1 more
core  

New Properties of Analytic Functions

Mathematics
In the present paper, we consider the class A¯ of functions f(z) of the form f(z)=z+∑k=1∞a1+k3z1+k3 that are analytic in the open unit disc U. If a1+k3=0 for k≠3n(n=1,2,3,⋯), then f(z) is given by f(z)=z+∑k=2∞akzk.
Hatun Özlem Güney, Shigeyoshi Owa
doaj   +1 more source

Some class of analytic functions related to conic domains

, 2014
For q ∈ (0, 1) let the q-difference operator be defined as follows $$\partial _q f(z) = \frac{{f(qz) - f(z)}} {{z(q - 1)}} (z \in \mathbb{U}),$$ where $$\mathbb{U}$$ denotes the open unit disk in a complex plane.
S. Kanas, D. Răducanu
semanticscholar   +1 more source

Weierstrass Analytic Functions

Mathematische Annalen, 1966
Weierstrass introduced a complete analytic function as a set consisting of a power series and all its analytic continuations. This definition — a fundamental expansion of Lagrange’s introduction of a function as a power series — was formany decades the only alternative to the classical introduction of functions as laws or rules associating or pairing ...
openaire   +2 more sources

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

FEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp, Katharina Rataj, Stefanie König, Marcia E. Newcomer, Oliver Werz, Ulrike Garscha   +5 more
wiley   +1 more source

The carboxylate “gripper” of the substrate is critical for C‐4 stereo‐inversion by UDP‐glucuronic acid 4‐epimerase

FEBS Letters, EarlyView.
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg, Laura De Cnop, Bernd Nidetzky   +2 more
wiley   +1 more source