Results 11 to 20 of about 1,734,021 (362)
12 pages, 1 figure.
Jonathan Jedwab, Lily Yen
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On Costas Sets and Costas Clouds [PDF]
We abstract the definition of the Costas property in the context of a group and study specifically dense Costas sets (named Costas clouds) in groups with the topological property that they are dense in themselves: as a result, we prove the existence of nowhere continuous dense bijections that satisfy the Costas property on ℚ2, ℝ2, and ℂ2, the latter ...
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Estudio Florístico de los Pastizales de la Costa Norte del Perú
Se presenta la descripción de 84 especies que forman los pastizales de la costa norte peruana, entre los 3º30’ y 8º latitud S (Tumbes – Trujillo). La comunidad vegetal en su mayor parte es semejante a un bosque sabanero, conformado por el algarrobo ...
Oscar Tovar
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El estudio de las plantas más utilizadas en el Recinto Jauneche, Cantón Palenque, Provincia Los Ríos, Ecuador, tuvo como finalidad conocer la etnobotánica local.
Andrea Gabriela Valdiviezo Cedeño +1 more
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Mortalidad en Costa Rica por choque cardiogénico en el periodo de 1997 a 2008 [PDF]
Objetivos: Describir las principales características del choque cardiogénico como complicación de la enfermedad isquémica del corazón. Evaluar la mortalidad por choque cardiogénico en Costa Rica, y su relación con la enfermedad isquémica del corazón en ...
Méndez Jiménez, Edgar +2 more
core +1 more source
This article describes how surgery developed in Costa Rica and how it was nurtured to its present status. The practice of surgery in Costa Rica developed slowly as a charitable service. In the past 3 decades, it became accessible to 87.6% of the population through the creation of a national health service system.
Enrique, Feoli +4 more
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Circular Costas maps: A multidimensional analog of circular Costas sequences
A unifying theoretical framework is presented, in which the connections among Costas sequences, circular Costas sequences, Costas polynomials, the shifting property, and Welch sequences are extended to the multidimensional context. Several conjectures on multidimensional periodic Costas arrays by J. Ortiz-Ubarri et al. are proved.
Jaziel Torres, Ivelisse Rubio
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For 16 years, Costa Rica was the only country in the world that banned IVF, after it had been successfully conducted from 1995 to 2000. It also has been the only country that banned IVF based on the argument that it protects the embryo. After years of conflict, the prohibition has finally been lifted and the first baby girl was born in March 2017. This
Valerio Gutiérrez, Carlos +2 more
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INVESTIGACIÓN CON SERES HUMANOS EN COSTA RICA Y SU IMPACTO EN LA SALUD DE LOS COSTARRICENSES [PDF]
We evaluate the benefits of clinical research carried out in Costa Rica from the published results and a sample of informed consent forms of approved protocols. We found 30 studies on 28 pharmaceuticals and 23 published scientific papers.
Granados Zúñiga, Jorge
core +1 more source
La nueva regulación del dominio público marítimo-terrestre en España
El presente estudio tiene por objeto realizar un análisis de las principales reformas realizadas sobre el régimen jurídico de las costas en España.
Marta García Pérez
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