Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Alejandro P. Vargas"'
Publikováno v:
Chemosensors, Vol 11, Iss 2, p 92 (2023)
Spectrophotometry and colorimetry are among the most-used techniques for chemical and biological analyses, but the required equipment is often expensive and restricted to laboratory use. We present here a low-cost and portable color measuring device
Externí odkaz:
https://doaj.org/article/dc2512baf9664363b85048806dce5714
Publikováno v:
Chemosensors, Vol 9, Iss 2, p 40 (2021)
A selective and inexpensive chemical paper-based sensor for the detection of gaseous H2S is presented. The triggering of the sensing mechanism is based on an arene-derivative dye which undergoes specific reactions in the presence of H2S, allowing for
Externí odkaz:
https://doaj.org/article/b941bee7be6d455e8bc5e7b70d3a03cb
Autor:
Miguel Ángel Cavada Gómez, Yulkeidi Martínez Espinoza, Alejandro Luis Vargas Meneses, Mailyn Torres Vivanco
Publikováno v:
Serie Científica de la Universidad de las Ciencias Informáticas, Vol 15, Iss 1, Pp 1-14 (2021)
En la actualidad la Empresa Eléctrica posee un gran cúmulo de datos producto de la informatización de sus procesos, específicamente en el área comercial, por los diferentes sistemas de gestión existentes en la entidad, lo que supone un reto par
Externí odkaz:
https://doaj.org/article/e0ebac66630d4331bc790321ef524f56
Autor:
Gómez, Mario, López-Permouth, Sergio R., Mazariegos, Fernando, De León, Alejandro José Vargas, Cifuentes, Rigoberto Zelada
A binary operation on any set induces a binary operation on its subsets. We explore families of subsets of a group that become a group under the induced operation and refer to such families as power groups of the given group. Our results serve to cha
Externí odkaz:
http://arxiv.org/abs/1604.01119
Autor:
Brandon Alejandro Muñoz Vargas, Aura Esperanza Velasco García, Rafael Leonardo Aragón Mendoza, Camilo Alberto Garzón Sarmiento, Elman Hackson Leal Vargas
Publikováno v:
Case Reports in Women's Health, Vol 35, Iss , Pp e00421- (2022)
During pregnancy, pelvic organ prolapse is uncommon and is associated with adverse outcomes such as vaginal infection, cervical ulceration, and preterm delivery. Treatment includes conservative and surgical management during pregnancy. A 32-year-old
Externí odkaz:
https://doaj.org/article/f40ca606fd9f47138734694d1fe1379c
Autor:
Alfredo Leal-Sandoval, Alejandro Tepatlán-Vargas, Gabriel López-Segoviano, Orlando Omer Linares-Holguín, Pedro Sanchez-Peña, Laura López-Hoffman
Publikováno v:
Check List, Vol 16, Iss 5, Pp 1269-1276 (2020)
The Big Crested Mastiff Bat, Promops centralis (Thomas, 1915), is widely distributed from Mexico to South America but has yet to be reported in the state of Sinaloa, Mexico. We collected 122 acoustic recordings of P. centralis from tropical dry fores
Externí odkaz:
https://doaj.org/article/6f214825f7754c8794841859701ce7e6
Publikováno v:
Latin American Journal of Trade Policy, Vol 3, Iss 7, Pp 6-18 (2020)
This paper analyzes the trade position of China and the United States and the reason for the trade tensions between both economic powers. For this, trade position indicators are used and the logical method is applied, as well as comparative analysis
Externí odkaz:
https://doaj.org/article/b1a70e79311f438c97854b9db315cf93
Autor:
Catalina Serna-Meneses, Gabriel Ocampo-Parra, Santiago Arango-Santander, Claudia Garcia-Garcia, Luis Felipe Restrepo-Tamayo, Johnatan Cardona-Jimenez, Alexander Ossa, Alejandro Pelaez-Vargas
Publikováno v:
International Journal of Dentistry, Vol 2022 (2022)
Background. The ceramics industry produces porcelain pastes using a controlled ratio of water and porcelain powder. Two methods are used to produce a dental porcelain paste: one-step mixing or incremental mixing. Objective. To evaluate the optical pr
Externí odkaz:
https://doaj.org/article/80bbe0e9ee9448c1bc9bd73a356e5bcc
Autor:
Claudia Isabel García-Berumen, Omar Ortiz-Avila, Manuel Alejandro Vargas-Vargas, Bricia A. del Rosario-Tamayo, Clotilde Guajardo-López, Alfredo Saavedra-Molina, Alain Raimundo Rodríguez-Orozco, Christian Cortés-Rojo
Publikováno v:
Lipids in Health and Disease, Vol 18, Iss 1, Pp 1-11 (2019)
Abstract Background High fat or fructose induces non-alcoholic fatty liver disease (NAFLD) accompanied of mitochondrial dysfunction and oxidative stress. Controversy remains about whether fructose or fat is more deleterious for NAFLD development. To
Externí odkaz:
https://doaj.org/article/6685a18e4b5a429283132d35459438d9
Publikováno v:
Lecturas de Economía, Iss 91, Pp 181-209 (2019)
El objetivo del presente trabajo es medir los cambios espaciales de las condiciones laborales de la mujer en el sector agropecuario en las 32 entidades federativas de México, durante el periodo 2008-2017. Para ello, se elabora un índice que conside
Externí odkaz:
https://doaj.org/article/b91c9e840df1497aac91f9fbfeeee39a