Results 71 to 80 of about 113,690 (166)
On Delta Graphs and Delta Conjecture [PDF]
Revista Matematica. Teor\'ia y Aplicaciones 2018, 2016 In this paper we define two infinite families of graphs called C-$\delta$ graphs and $\delta$- graph and prove that $\delta$-graphs satisfy $\delta$ conjecture. Also we introduce a family of C-$\delta$ graphs from which we can identify $\delta$ graphs as their complements.
arxiv
A numerical study of approximate metrics with quadrupole moment [PDF]
arXiv, 2017 Recently, spacetimes described by metrics with three parameters (mass, rotation and small quadrupole moment) was found, and in this paper, null geodesics for these metrics are calculated and visualized. Light scattering, as well as the role that the quadrupole moment plays in deforming these kinds of spacetimes are studied. This is a new application of
arxiv
Revista Costarricense de Psicología, 2016 La discusión en torno a la influencia del ambiente sobre la ontogenia ha alimentado la interrogante sobre cuál es el grado en el que, a través de la manipulación del contexto, se modifican las características de los individuos.
Johanna Sibaja-Molina +3 more
doaj
Descriptions of two new species of fresh-water crabs from Costa Rica
, 1896 Mary J. Rathbun
openalex +2 more sources
Agronomía MesoamericanaIntroducción. Existe una tendencia al consumo de espirulina (Arthrospira sp.) por su valor nutricional y como fuente de proteína sostenible. La espirulina cuenta con sabor y olor intenso que puede generar desagrado a los consumidores, por lo que es ...
Fiorella Bolaños-Quirós +4 more
doaj +1 more source
Fossil Echini of the Panama Canal Zone and Costa Rica
, 1917 Robert T. Jackson
openalex +2 more sources
Die Sprache der Bribri‐Indianer in Costa Rica. Von H. Pittier de Fábrega. Herausgegeben von Dr. Friedrich Müller [PDF]
, 1899 D. G. Brinton
openalex +1 more source
Forecasting hospital discharges for respiratory conditions in Costa Rica using climate and pollution data [PDF]
arXivRespiratory diseases represent one of the most significant economic burdens on healthcare systems worldwide. The variation in the increasing number of cases depends greatly on climatic seasonal effects, socioeconomic factors, and pollution. Therefore, understanding these variations and obtaining precise forecasts allows health authorities to make ...
arxiv
Modelo de la inflación en Costa Rica [PDF]
arXivThe stability of the inflation rate is a necessary condition for the proper functioning of any capitalist economy. In an economic environment with volatile inflation, the growth of the economy and its distribution among the agents of society is compromised.
arxiv