Results 41 to 50 of about 3,877,766 (328)

Recovery of an initial temperature of a one-dimensional body from finite time-observations

open access: yesMathematics in Applied Sciences and Engineering, 2023
Under the Dirichlet boundary setting, Aryal and Karki (2022) studied an inverse problem of recovering an initial temperature profile from known temperature measurements at a fixed location of a one-dimensional body and at linearly growing finitely many ...
Ramesh Karki, Chava Shawn, Young You
doaj   +1 more source

Parent‐to‐Child Information Disclosure in Pediatric Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite professional consensus regarding the importance of open communication with pediatric cancer patients about their disease, actual practice patterns of disclosure are understudied. Extant literature suggests a significant proportion of children are not told about their diagnosis/prognosis, which is purported to negatively ...
Rachel A. Kentor   +12 more
wiley   +1 more source

Configurações centrais planares do tipo pipa

open access: yesRevista Brasileira de Ensino de Física
Neste artigo estudamos configurações centrais planares do tipo pipa para o problema de quatro corpos. Mostramos a existência de tais configurações para as pipas côncavas, quando uma das massas está no interior do triângulo formado pelas outras três ...
Luis Fernando Mello   +2 more
doaj   +1 more source

Instability of the Gravitational N-Body Problem in the Large-N Limit

open access: yes, 2002
We use a systolic N-body algorithm to evaluate the linear stability of the gravitational N-body problem for N up to 1.3 x 10^5, two orders of magnitude greater than in previous experiments. For the first time, a clear ~ln N-dependence of the perturbation
David Merritt   +6 more
core   +1 more source

Graph states as ground states of many-body spin-1/2 Hamiltonians [PDF]

open access: yes, 2006
We consider the problem whether graph states can be ground states of local interaction Hamiltonians. For Hamiltonians acting on n qubits that involve at most two-body interactions, we show that no n-qubit graph state can be the exact, non-degenerate ...
H. J. Briegel   +4 more
core   +2 more sources

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

The N-Body Problem in Lotos [PDF]

open access: yesElectronic Notes in Theoretical Computer Science, 2001
AbstractIt is shown how the classical n-body problem in mechanics can be generalised and formalised in Lotos. A number of variants are produced by instantiation of the specification framework. These include Newton's cradle, gas motion, the ‘game of life’, an orrery, a space game, an air traffic simulation and a sailing race.
openaire   +1 more source

On the dihedral n-body problem

open access: yes, 2008
Consider n=2l>=4 point particles with equal masses in space, subject to the following symmetry constraint: at each instant they form an orbit of the dihedral group D_l, where D_l is the group of order 2l generated by two rotations of angle pi around two ...
Ferrario, Davide L.   +1 more
core   +3 more sources

An analytic solution to the Busemann-Petty problem on sections of convex bodies [PDF]

open access: yes, 1999
We derive a formula connecting the derivatives of parallel section functions of an origin-symmetric star body in R^n with the Fourier transform of powers of the radial function of the body.
Alexander Koldobsky   +7 more
core   +7 more sources

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS 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

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