Results 91 to 100 of about 905,072 (302)

Finding the Zeros of the Functions Treated by q-Calculus

open access: yes, 2012
We construct $q$-Taylor formula for the functions of several variables and develop some new methods for solving equations and systems of equations. They are much easier for application than well known ones and very useful when the continuous function does not have fine smooth properties.
Rajković, Predrag M.   +2 more
openaire   +2 more sources

On a system of fractional q-differential inclusions via sum of two multi-term functions on a time scale

open access: yesBoundary Value Problems, 2020
Nowadays most researchers have been focused on fractional calculus because it has been proved that fractional derivatives could describe most phenomena better than usual derivations.
Mohammad Esmael Samei, Shahram Rezapour
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

A versatile approach to calculus and numerical methods [PDF]

open access: yes, 1990
Traditionally the calculus is the study of the symbolic algorithms for differentiation and integration, the relationship between them, and their use in solving problems.
Tall, David
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Promiscuous stimulation of HSP70 ATPase activity by parasite‐derived J‐domains

open access: yesFEBS Open Bio, EarlyView.
The malaria parasite Plasmodium falciparum exports three highly homologous yet functionally divergent J‐domain proteins into human erythrocytes. Here, we show that J‐domains isolated from all three proteins effectively stimulate the ATPase activity of both endogenous host and exported parasite HSP70 chaperones.
Julian Barth   +6 more
wiley   +1 more source

A Dependently Typed Ambient Calculus

open access: yes, 2003
The Ambient calculus is a successful model of distributed, mobile computation, and has been the vehicle of new ideas for resource access control. Mobility types have been used to enforce elementary access control policies, expressed indirectly via ...
Cedric Lhoussaine   +3 more
core   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

open access: yesFEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman   +4 more
wiley   +1 more source

Variational calculus on q-nonuniform lattices

open access: yes, 2005
We introduce the variational calculus on q-nonuniform lattices. In particular, we discuss the basic concepts such as the Euler–Lagrange equation and its applications to the isoperimetric, the Lagrange and the optimal control problems on q-nonuniform ...
Bangerezako, Gaspard
core   +1 more source

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