Results 51 to 60 of about 274,060 (275)

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Necessary and Sufficient Conditions for the Existence of Rational Solutions to Homogeneous Difference Equations with Constant Coefficients

open access: yesИзвестия Иркутского государственного университета: Серия "Математика"
A necessary and a sufficient condition for solvability of homogeneous difference equations with constant coefficients in the class of rational functions are obtained. The necessary condition is a restriction on the Newton polyhedron of the characteristic
P. V. Trishin
doaj   +1 more source

On the Global of the Difference Equation ${x_{n+1}}=\frac{{\alpha {x_{n-m}+\eta {x_{n-k}}+}}\delta {{x_{n}}}}{{\beta +\gamma {x_{n-k}}{x_{n-l}}\left( {{x_{n-k}}+{x_{n-l}}}\right) }}$

open access: yesCommunications in Advanced Mathematical Sciences, 2022
In this article, we consider and discuss some properties of the positive solutions to the following rational nonlinear DE ${x_{n+1}}=\frac{{\alpha { x_{n-m}+\eta {x_{n-k}}+}}\delta {{x_{n}}}}{{\beta +\gamma {x_{n-k}}{x_{n-l}} \left( {{x_{n-k}}+{x_{n-l}}}\
Mohamed Abd El-moneam
doaj   +1 more source

Tangle analysis of difference topology experiments: applications to a Mu protein-DNA complex

open access: yes, 2007
We develop topological methods for analyzing difference topology experiments involving 3-string tangles. Difference topology is a novel technique used to unveil the structure of stable protein-DNA complexes involving two or more DNA segments.
Arsuaga   +19 more
core   +1 more source

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

open access: yesFEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc   +8 more
wiley   +1 more source

Solutions Of The Rational Difference Equations X(n+1)=x(n-3)/(1+x(n)x(n-1)x(n-2))

open access: yesMANAS: Journal of Engineering, 2016
In this paper a solution of the following of difference equations is examined, X(n 1)=x(n-3)/(1 x(n)x(n-1)x(n-2)) (1)where the initial conditions are positive real numbers.
D. Şimşek, M. Eröz
doaj  

Holistic projection of initial conditions onto a finite difference approximation

open access: yes, 2001
Modern dynamical systems theory has previously had little to say about finite difference and finite element approximations of partial differential equations (Archilla, 1998).
A.J Roberts   +4 more
core   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

Existence of rational solutions for q-difference Painleve equations

open access: yesElectronic Journal of Differential Equations, 2020
This article studies properties of meromorphic solutions for several types of q-difference Painleve equations. We obtain conditions for the existence, and the form of rational solutions for two classes of q-difference Painleve equations.
Hong Yan Xu, Jin Tu
doaj  

Exact Solutions for Nonlinear Differential Difference Equations in Mathematical Physics

open access: yesAbstract and Applied Analysis, 2013
We modified the truncated expansion method to construct the exact solutions for some nonlinear differential difference equations in mathematical physics via the general lattice equation, the discrete nonlinear Schrodinger with a saturable nonlinearity ...
Khaled A. Gepreel   +2 more
doaj   +1 more source

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