Results 111 to 120 of about 13,731,074 (335)
On a property of positive integer solution of equation $\sum_{i=1}^k r_i=n$ [PDF]
, 1957 Karel Čulík
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, 2010 We consider the existence and uniqueness of positive solution to nonzero boundary values problem for a coupled system of fractional differential equations. The differential operator is taken in the standard Riemann-Liouville sense.
Jinhua Wang, Hongjun Xiang, Zhigang Liu
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FEBS Letters, EarlyView.Spinal muscular atrophy (SMA) is a genetic disease affecting motor neurons. Individuals with SMA experience mitochondrial dysfunction and oxidative stress. The aim of the study was to investigate the effect of an antioxidant and neuroprotective substance, ergothioneine (ERGO), on an SMNΔ7 mouse model of SMA.
Francesca Cadile +8 more
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Sur les matrices non négatives et les solutions positives de certains systèmes linéaires [PDF]
, 1939 Potron
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Monotone Positive Solution of Nonlinear Third-Order BVP with Integral Boundary Conditions
, 2010 This paper is concerned with the following third-order boundary value problem with integral boundary conditions , where and . By using the Guo-Krasnoselskii fixed-point theorem, some sufficient conditions are obtained for the existence and nonexistence ...
Jian-Ping Sun, Hai-Bao Li
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FEBS Letters, EarlyView.Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
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Preliminary notice on the composition of the black deposit which attaches itself to the positive electrode of the battery on electrolysing solutions of argentic nitrate [PDF]
, 1882 J. W. Gatehouse
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On the number of positive solutions of nonlinear systems
Journal of Mathematical Analysis and Applications, 2003 This paper is devoted to the existence, multiplicity and nonexistence of positive solutions to boundary value problems on \([0,1]\) for a class of second-order differential systems where the main common operator is the one-dimensional \(p\)-Laplacian, \(p> 1\). The author uses a fixed-point theorem in a cone due to \textit{M. A.
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Positive Solutions for Nonlinear Eigenvalue Problems
Journal of Mathematical Analysis and Applications, 1997 The authors are concerned with determining values of \(\lambda\) (eigenvalues), for which there exist positive solutions of the boundary value problem \[ (1_\lambda)\quad u''+\lambda a(t)f(u)=0 ...
Haiyan Wang, Johnny Henderson
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