Results 71 to 80 of about 251,066 (317)

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

Nonlinear perturbations of the Kirchhoff equation

Electronic Journal of Differential Equations, 2017
In this article we study the existence and uniqueness of local solutions for the initial-boundary value problem for the Kirchhoff equation $$\displaylines{ u'' - M(t,\|u(t)\|^{2})\Delta u + |u|^{\rho} =f \quad\text{in } \Omega \times (0, T_0), \cr u=
Manuel Milla Miranda, Aldo T. Louredo, Luiz A. Medeiros   +2 more
doaj  

EXISTENCE OF SOLUTIONS OF IMPLICIT DIFFERENTIAL INCLUSIONS

Tamkang Journal of Mathematics, 1993
We prove the existence of solutions for the implicit differen- tial inclusions of the form \[ \dot x(t) \in A(t,x)+F(t,x,\dot x) \text{ for } t \in I, \text{ a.e. }  \qquad x(r) =0 \] with $I = [r,r+a]$ by using the Covitz-Nadler fixed point theorem.
Anguraj, A., Balachandran, K.
openaire   +3 more sources

SYMMETRY AND EXISTENCE OF SOLUTIONS OF SEMI-LINEAR ELLIPTIC SYSTEMS IN HYPERBOLIC SPACE [PDF]

, 2014
Haiyang He
openalex   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Upper and lower solutions for a second-order three-point singular boundary-value problem

Electronic Journal of Differential Equations, 2009
We study the singular boundary-value problem $$displaylines{ u''+ q(t)g(t,u)=0,quad t in (0,1),; eta in (0,1),;gamma >0cr u(0)=0, quad u(1)=gamma u(eta),.
Qiumei Zhang, Daqing Jiang, Shiyou Weng, Haiyin Gao   +3 more
doaj  

Corrections to ``Existence and stability of solutions for semilinear Dirichlet problems'' (Ann. Polon. Math. 88 (2006), 127–139) [PDF]

, 2008
Marek Galewski
openalex   +1 more source

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Existence of solutions for Hardy-Sobolev-Maz'ya systems

Electronic Journal of Differential Equations, 2012
The main goal of this article is to investigate the existence of solutions for the Hardy-Sobolev-Maz'ya system $$displaylines{ -Delta u-lambda frac{u}{|y|^2}=frac{|v|^{p_t-1}}{|y|^t}v,quad hbox{in }Omega,cr -Delta v-lambda frac{v}{|y|^2}=frac{|u ...
Jian Wang, Xin Wei
doaj