Results 51 to 60 of about 5,619,071 (301)

Circulating histones as clinical biomarkers in critically ill conditions

open access: yesFEBS Letters, EarlyView.
Circulating histones are emerging as promising biomarkers in critical illness due to their diagnostic, prognostic, and therapeutic potential. Detection methods such as ELISA and mass spectrometry provide reliable approaches for quantifying histone levels in plasma samples.
José Luis García‐Gimenez   +17 more
wiley   +1 more source

Positive solutions for nonlinear elliptic systems

open access: yesElectronic Journal of Differential Equations, 2012
In this article, we study the existence of positive solutions for the system $$displaylines{ Delta u=H(x,u,v),cr Delta v=K(x,u,v),hbox{in }mathbb{R}^n; (ngeq 3), }$$ where $H,K: mathbb{R}^nimes[0,infty)imes[0,infty)o[0,infty)$ are continuous ...
Adel Ben Dekhil
doaj  

Existence of a positive solution for a singular system [PDF]

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 2010
We show the existence and non-existence of positive solutions to a system of singular elliptic equations with the Dirichlet boundary condition.
Da Silva Montenegro, Marcelo   +1 more
openaire   +2 more sources

The epithelial barrier theory proposes a comprehensive explanation for the origins of allergic and other chronic noncommunicable diseases

open access: yesFEBS Letters, EarlyView.
Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu   +17 more
wiley   +1 more source

Existence of positive solutions to a class of Caputo fractional differential equations

open access: yesJournal of Hebei University of Science and Technology, 2016
In order to investigate the existence of positive solutions to a class of Caputo fractional differential equation boundary value problems with p-Laplacian operator, the Green’s function is obtained by calculus, and its properties are discussed.
Yunhong LI, Wenjing LYU
doaj   +1 more source

Completely positive matrices and positivity of least squares solutions

open access: yesLinear Algebra and its Applications, 1993
The authors give a sufficient condition for a doubly nonnegative matrix to be completely positive in terms of the positivity of the least squares solutions of a linear system associated to the matrix. Some known results on completely positive matrices are derived.
Paolo Zanardo, Luigi Salce
openaire   +3 more sources

Thermostable neutral metalloprotease from Geobacillus sp. EA1 does not share thermolysin's preference for substrates with leucine at the P1′ position

open access: yesFEBS Letters, EarlyView.
Knowing how proteases recognise preferred substrates facilitates matching proteases to applications. The S1′ pocket of protease EA1 directs cleavage to the N‐terminal side of hydrophobic residues, particularly leucine. The S1′ pocket of thermolysin differs from EA's at only one position (leucine in place of phenylalanine), which decreases cleavage ...
Grant R. Broomfield   +3 more
wiley   +1 more source

Throughout positive solutions of second-order nonlinear differential equations

open access: yesElectronic Journal of Differential Equations, 2005
In this paper, we consider the second-order nonlinear and the nonlinear neutral functional differential equations $$displaylines{ (a(t)x'(t))'+f(t,x(g(t)))=0,quad tgeq t_0cr (a(t)(x(t)-p(t)x(t-au))')'+f(t,x(g(t)))=0,quad tgeq t_0,. }$$ Using the Banach
Zhenguo Zhang   +3 more
doaj  

Exploring lipid diversity and minimalism to define membrane requirements for synthetic cells

open access: yesFEBS Letters, EarlyView.
Designing the lipid membrane of synthetic cells is a complex task, in which its various roles (among them solute transport, membrane protein support, and self‐replication) should all be integrated. In this review, we report the latest top‐down and bottom‐up advances and discuss compatibility and complexity issues of current engineering approaches ...
Sergiy Gan   +2 more
wiley   +1 more source

C‐mannosylation promotes ADAMTS1 activation and secretion in human testicular germ cell tumor NEC8 cells

open access: yesFEBS Letters, EarlyView.
C‐mannosylation is a unique form of protein glycosylation. In this study, we demonstrated that ADAMTS1 is C‐mannosylated at Trp562 and Trp565 in human testicular germ cell tumor NEC8 cells. We found that C‐mannosylation of ADAMTS1 is essential for its secretion, processing, enzymatic activity, and ability to promote vasculogenic mimicry. These findings
Takato Kobayashi   +5 more
wiley   +1 more source

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