Results 51 to 60 of about 4,557,251 (286)

Existence theorems for higher order boundary value problems [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
In this paper the differential equation y ( n ) = f ( x , y ) {y^{(n)}} = f(x,y) and associated boundary conditions y (
Schrader, Keith, Umamaheswaram, S.
openaire   +1 more source

Characterizing Parental Concerns About Lasting Impacts of Treatment in Children With B‐Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background B‐acute lymphoblastic leukemia (B‐ALL) is the most common pediatric cancer, and while most children in high‐resource settings are cured, therapy carries risks for long‐term toxicities. Understanding parents’ concerns about these late effects is essential to guide anticipatory support and inform evolving therapeutic approaches ...
Kellee N. Parker   +7 more
wiley   +1 more source

Existence of Heteroclinic Orbits in Fractional-Order and Integer-Order Coupled Lorenz Systems

open access: yesFractal and Fractional
Applying two Lyapunov functions and the concepts of α-/ω-limit sets, this paper reexamines fractional-order and integer-order coupled Lorenz systems and simultaneously proves the existence of twelve heteroclinic orbits, i.e., four ones to S0 and S5,6,7,8,
Guiyao Ke   +3 more
doaj   +1 more source

DELP Treatment on Vision and Retinal Microcirculation in Patients With Acute Ischemic Stroke: Report of Five Cases and Literature Review

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background The delipid extracorporeal lipoprotein filter from plasma (DELP) treatment can effectively reduce blood lipid, increase blood flow, and improve neurological deficits in patients with acute ischemic stroke (AIS). However, its effect on vision and retinal microcirculation in stroke patients has never been reported.
Ning Li   +9 more
wiley   +1 more source

Existence Results for the Distributed Order Fractional Hybrid Differential Equations

open access: yesAbstract and Applied Analysis, 2012
We introduce the distributed order fractional hybrid differential equations (DOFHDEs) involving the Riemann-Liouville differential operator of order ...
Hossein Noroozi   +2 more
doaj   +1 more source

The existence and singularity structure of low regularity solutions of higher-order degenerate hyperbolic equations [PDF]

open access: yes, 2013
This paper is a continuation of our previous work [21], where we have established that, for the second-order degenerate hyperbolic equation (\p_t^2-t^m\Delta_x)u=f(t,x,u), locally bounded, piecewise smooth solutions u(t,x) exist when the initial data (u,\
Ruan, Zhuoping   +2 more
core  

Nontrivial solutions of systems of Hammerstein integral equations with first derivative dependence

open access: yes, 2017
By means of classical fixed point index, we prove new results on the existence, non-existence, localization and multiplicity of nontrivial solutions for systems of Hammerstein integral equations where the nonlinearities are allowed to depend on the first
Infante, Gennaro, Minhós, Feliz
core   +1 more source

Existence Results for First-Order Impulsive Differential Equations

open access: yesJournal of Mathematical Analysis and Applications, 1995
With the help of a nonlinear Leray-Schauder type theorem the authors obtain some existence results for the impulsive initial value problem. They also study the periodic problem making use of upper and lower solutions. The results obtained complement those known in the literature.
Frigon, M., Oregan, D.
openaire   +2 more sources

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

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