Results 21 to 30 of about 51,190 (220)
Factors associated with depression in cancer patients during chemotherapy
Rev Rene, 2019 Objective: to analyze the factors associated with depression in cancer patients during chemotherapy. Methods: a descriptive cross-sectional study of 208 patients undergoing chemotherapy.
Taciana Cunha Arantes +4 more
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Exact and approximate expressions for the period of anharmonic oscillators [PDF]
European Journal of Physics 26, 589-601 (2005), 2004 In this paper we present a straightforward systematic method for the exact and approximate calculation of integrals that appear in formulas for the period of anharmonic oscillators and other problems of interest in classical mechanics.
arxiv +1 more source
CARACTERIZAÇÃO DE MODELO ANIMAL MURINO PARA GVHD BASEADO EM XENOTRANSPLANTE
Hematology, Transfusion and Cell Therapy, 2021 A doença do enxerto contra hospedeiro (do inglês Graft versus Host Disease, GvHD) é um efeito adverso do transplante de células-tronco hematopoiéticas (HSC).
PNM Costa +6 more
doaj
A ÉTICA CRISTÃ DO AMOR EM KIERKEGAARD
Perspectiva Teológica, 2018 RESUMO: O mandamento do amor ao próximo constitui o âmago das Obras do Amor de Kierkegaard. Nesta obra, o amor cristão é definido em contraposição ao amor natural, nomeadamente ao amor erótico e à amizade.
Domingos Manuel Salgado
doaj +1 more source
Alternative perturbation approaches in classical mechanics [PDF]
European Journal of Physics 26, 1057-1063 (2005), 2004 We discuss two alternative methods, based on the Lindstedt--Poincar\'{e} technique, for the removal of secular terms from the equations of perturbation theory. We calculate the period of an anharmonic oscillator by means of both approaches and show that one of them is more accurate for all values of the coupling constant.
arxiv +1 more source
La fenomenología del amor de Ortega
Revista Humanidades, 2020 El artículo aborda la fenomenología del amor en la filosofía de Ortega, especialmente a partir de su obra del periodo maduro Estudios sobre el amor (1939).
Leopoldo Tillería Aqueveque
doaj +1 more source
Comparison of alternative improved perturbative methods for nonlinear oscillations [PDF]
Physics Letters A 340, 201-208 (2005), 2004 We discuss and compare two alternative perturbation approaches for the calculation of the period of nonlinear systems based on the Lindstedt--Poincar\'{e} technique. As illustrative examples we choose one--dimensional anharmonic oscillators and the Van der Pol equation.
arxiv +1 more source
Derecho Animal. Forum of Animal Law Studies, 2017 Después de 32 años exactos, México se enfrenta de nuevo con un terremoto de 7.1 escala de Richter. Esta noticia a conmocionado al mundo, ya que los mexicanos unieron fuerzas para ayudarse los unos a los otros. Pero lo que más asombro de esta situación fueron los perros rescatistas, que han podido salvar a mucha gente en medio de los escombros. After 32
openaire +6 more sources
On Dalgarno and Lewis Perturbation Theory for Scattering States [PDF]
, 2006 We apply the method of Dalgarno and Lewis to scattering states and discuss the choice of the unperturbed model in order to have a convergent perturbation series for the phase shift.
arxiv +1 more source
Development of accurate solutions for a classical oscillator [PDF]
Journal of Sound and Vibration 300 (2007) 345-351, 2006 We present a method to obtain arbitrarily accurate solutions for conservative classical oscillators. The method that we propose here works both for small and large nonlinearities and provides simple analytical approximations. A comparison with the standard Lindstedt-Poincar\'e method is presented, from which the advantages of our method are clear.
arxiv +1 more source