Results 31 to 40 of about 3,862,945 (275)

Positive Solutions of Nonlinear Elliptic Eigenvalue Problems [PDF]

open access: yes, 1970
We shall study a class of mildly nonlinear elliptic eigenvalue problems which are suggested by several recently occurring problems concerning the steady state temperature distribution of a physical medium in which heat is being generated ...
Cohen, Donald S., Simpson, R. Bruce
core  

Positive solutions for asymptotically linear problems in exterior domains

open access: yes, 2016
The existence of a positive solution for a class of asymptotically lin- ear problems in exterior domains is established via a linking argument on the Nehari manifold and by means of a barycenter ...
Maia, Liliane A., Pellacci, Benedetta
core   +1 more source

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Carbon in Color: Metaphors Shaping Science, Policy, and Imagination

open access: yesEarth's Future
Carbon is one of the most abundant elements on Earth, circulating through forests, soils, oceans, wetlands, the atmosphere, and even ice. Scientists and communicators have developed a palette of “carbon colors” to capture this diversity: green for ...
Peter I. Macreadie, Anirban Akhand
doaj   +1 more source

Positive solutions of $q$-difference equation [PDF]

open access: yesProceedings of the American Mathematical Society, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
El-Shahed, Moustafa, Hassan, H. A.
openaire   +2 more sources

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine   +14 more
wiley   +1 more source

Existence of Positive Solutions for fourth-order Differential Equations with indeterminate weights [PDF]

open access: yes, 2018
In this paper, the existence of positive solutions of fourth-order differential equations with indeterminate weights is considered as ...
Wang, J. (Jiao)
core  

Positive solutions of positive linear systems

open access: yesLinear Algebra and its Applications, 1985
The Volterra-Lotka equations \(dx_ i/dt=x_ i(b_ i-\Sigma a_{ij}x_ j),\) \(b_ i>0\), \(a_{ii}>0\), \(a_{ij}\geq 0\) correspond to an ecosystem with interspecies and intraspecies competition. A steady state solution \(X^*\) exists if \(b_ i-\Sigma a_{ij}X^*_ j=0\).
openaire   +1 more source

Personalized Selumetinib Dosing in Pediatric Neurofibromatosis Type 1: Insights From a Pilot Therapeutic Drug Monitoring Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács   +8 more
wiley   +1 more source

Positive solutions for singular $\phi-$Laplacian BVPs on the positive half-line

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
In this work, we are concerned with the existence of positive solutions for a $\phi$ Laplacian boundary value problem on the half-line. The results are proved using the fixed point index theory on cones of Banach spaces and the upper and lower solution ...
Smail Djebali, O. Saifi
doaj   +1 more source

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