Results 91 to 100 of about 6,658,638 (311)
The Global Existence Problem in General Relativity [PDF]
, 2004 We survey some known facts and open questions concerning the global properties of 3+1 dimensional spacetimes containing a compact Cauchy surface. We consider spacetimes with an $\ell$-dimensional Lie algebra of space-like Killing fields. For each $\ell \leq 3$, we give some basic results and conjectures on global existence and cosmic censorship.
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Inhomogeneous parabolic equations on unbounded metric measure spaces [PDF]
, 2012 We study the inhomogeneous semilinear parabolic equation ut = Δu + up + f(x), with source term f independent of time and subject to f(x) ≥ 0 and with u(0, x) = φ(x) ≥ 0, for the very general setting of a metric measure space. By establishing Harnack-type
Hu, Jiaxin +5 more
core +1 more source
Modelling stem cell differentiation related processes—A practical overview for biologists
FEBS Letters, EarlyView.Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar +4 more
wiley +1 more source
Global existence of semilinear system of Klein-Gordon equations in anti-de Sitter spacetime
Demonstratio MathematicaIn this article, we consider the initial value problem for a system of Klein-Gordon equations in anti-de Sitter spacetime. We assume that the mass matrix is diagonalizable with positive eigenvalues.
Yazıcı Muhammet
doaj +1 more source
Existence of a Global Solution for a Viscoelastic System
Journal of Mathematical Analysis and Applications, 1998 The author considers the Cauchy problem for the viscoelastic system \[ v_t- u_x= 0,\quad u_t- f(v)_x+ ku= u_{xx} \] without the restriction that the initial data approach constants at infinity. Existence of unique classical solution is proved, including a priori estimates.
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Global Health Security Branch : advancing global health security [PDF]
The Global Health Security Branch (GHSB) leads CDC\ue2\u20ac\u2122s global health security engagement with other U.S. government agencies and programs, multilateral institutions such as the World Health Organization (WHO) and the World Bank, ministries ...
core
Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
AxiomsThis paper establishes the global-in-time existence and uniqueness of mild solutions to the relativistic Vlasov–Maxwell–Fokker–Planck (VMFP) system near a global Maxwellian equilibrium.
Yingzhe Fan, Dali Hu
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Global Disease Detection Operations Center : tracking global outbreaks [PDF]
The Global Disease Detection Operations Center monitors outbreaks across the globe and assesses their potential risk to the global community.The Operations Center was established in 2007 to address weaknesses or gaps in global public health surveillance ...
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Global, regional, and national stillbirths at 20 weeks' gestation or longer in 204 countries and territories, 1990-2021: findings from the Global Burden of Disease Study 2021. [PDF]
BACKGROUND: Stillbirth is a devastating and often avoidable adverse pregnancy outcome. Monitoring stillbirth levels and trends-in a comprehensive manner that leaves no one uncounted-is imperative for continuing progress in pregnancy loss reduction.
GBD 2021 Global Stillbirths Collaborators, +1 more
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