Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Mario A, Contreras"'
Publikováno v:
The Anáhuac Journal, Vol 24, Iss 1 (2024)
El presente artículo explora las causas de la inclusión financiera entre la población mexicana. Con datos de la Encuesta Nacional de Inclusión Financiera (ENIF) (INEGI, 2021) desarrolla dos modelos de aprendizaje automático con el objetivo de id
Externí odkaz:
https://doaj.org/article/df4465fab7ef4e00b0aa8992fd999d8e
Publikováno v:
Kairós, Revista de Ciencias Económicas, Jurídicas y Administrativas, Vol 6, Iss 11, Pp 9-32 (2023)
La intervención del Estado en muchos ámbitos es fundamental. Sin embargo, en países como Ecuador esto ha sido una utopía, y no necesariamente por temas de corrupción o falta de presupuesto gubernamental, sino porque las autoridades no establecen
Externí odkaz:
https://doaj.org/article/51471252177d49edb4d2f45bb5182e56
Autor:
Mario Ivan Contreras-Valdez, Sonal Sahu, José Antonio Núñez-Mora, Roberto Joaquín Santillán-Salgado
Publikováno v:
Risks, Vol 12, Iss 3, p 50 (2024)
In the broader landscape of cryptocurrency risk management, this study delves into the nuanced estimation of Value-at-Risk (VaR) for a uniformly weighted portfolio of cryptocurrencies, employing the bivariate Normal Inverse Gaussian distribution reno
Externí odkaz:
https://doaj.org/article/dba67ea27e804cf3a42a4ba049bd2e3b
Publikováno v:
Mathematics, Vol 11, Iss 20, p 4395 (2023)
This paper reports our findings on the return dynamics of Bitcoin and Ethereum using high-frequency data (minute-by-minute observations) from 2015 to 2022 for Bitcoin and from 2016 to 2022 for Ethereum. The main objective of modeling these two series
Externí odkaz:
https://doaj.org/article/96cb0e22b9d5478080e648d38269709b
Publikováno v:
SAGE Open, Vol 12 (2022)
This study presents a multivariate study regarding Bitcoin and its interactions with other financial assets of different classes. This is done by adjusting a multivariate semi heavy-tailed distribution to portfolios containing indexes, currencies, an
Externí odkaz:
https://doaj.org/article/7d89d3cf17e64f85a8082ce1a6825b42
Publikováno v:
Mathematics, Vol 10, Iss 9, p 1353 (2022)
We estimated the stock market risk premium during the COVID-19 pandemic with a GARCH-in-Mean (GARCH-M)(1,1) model. The analysis then explored the presence of regime changes using a two-regime Markov-Switching GARCH (MS GARCH)(1,1) model. The sample w
Externí odkaz:
https://doaj.org/article/be3b223b2331482e9b0d4e42cc97acbf
Autor:
Hector Augusto Sandoval Contreras, Renan Ribeiro Barzan, Mario Sandoval Contreras, Osmar Rodrigues Brito
Publikováno v:
Acta Agronómica, Vol 66, Iss 4, Pp 558-565 (2017)
The aim of this research was to evaluate two traditional N sources (urea and ammonium sulfate) and an alternative one (sulfamoo) with increasing rates (0, 40, 80, 120 and 160 kg N ha-1, respectively) affecting aspects of upland rice crop cv. IAPAR
Externí odkaz:
https://doaj.org/article/263db7dd14094a4f8e5d7a4c04991f6c
Autor:
Ebtesam Abdulla, Tariq Janjua, Amit Agrawal, Luis Rafael Moscote-Salazar, Mario Alejandro Contreras-Arrieta, Eileen Jhoana Cortecero-Sabalza, Winston Eduardo Cárdenas Chávez
Publikováno v:
Journal of Neurointensive Care. 5:39-43
The systemic inflammatory response syndrome (SIRS) consists of an inflammatory phenomenon as a response of the immune system against infections, as well as non-infectious injuries, which includes manifestations that affect multiple organs, among whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0883deeea383b003c9829ebb3f05cd1e
https://doi.org/10.32587/jnic.2022.00514
https://doi.org/10.32587/jnic.2022.00514
Autor:
Luis E. Lares Carrillo, Jose F. Salazar, Mckenna M. Hitter, Victoria C. Luna, Damian E. Alvarez, Mario Arana Contreras, Veronica G. Contreras Guerrero, Jordan S. Hitter, Daniel A. Morales, Alan Nunez, Arturo Villegas, David A. Roberson
Publikováno v:
Journal of Failure Analysis and Prevention.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2afa4501224e319670e9fabdb5cfff66
https://doi.org/10.1007/s11668-023-01681-0
https://doi.org/10.1007/s11668-023-01681-0
Autor:
Hector Augusto Sandoval Contreras, Mario Sandoval Contreras, Renan Ribeiro Barzan, João Pedro Silvestre, Osmar Rodrigues Brito
Publikováno v:
Semina: Ciências Agrárias, Vol 37, Iss 3, Pp 1267-1276 (2016)
The aim of this study was to evaluate the initial growth, nitrogen (N) uptake, and agronomic efficiency after the use of N fertilizers in upland rice cultivation. The experiment was conducted in a greenhouse by using pots filled with surface-layer (0
Externí odkaz:
https://doaj.org/article/6f7977fe16614b21bf7a575db9e594ef