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IoET enabled classrooms to foster Education 4.0 in Mexican elementary schools
Juan Contreras-Castillo,Pedro C. Santana-Mancilla,Norma Barón-Ramírez,Elba Abigail Morales Vanegas APEC국제교육협력원 2020 Asia-Pacific Cybereducation Journal Vol.16 No.1
The changes of the Fourth Industrial Revolution (Industry 4.0) are inevitable in all areas of daily life, from government to healthcare and commerce, including the educational field. Education 4.0 brings potential challenges to schools around the globe, such as digital technology, personalized data, and a connected world. Thus, this paper presents a Mexican case study about a classroom enhanced with digital technology to study the challenges that both students and teachers face to acquire and transmit the skills and competencies that Industry 4.0 requires. As a preliminary result, we found that the probability of students accepting this technology for learning is very high.
Juan Contreras-Castillo,Enrique Aguirre-Hall,Norma Baron-Ramirez APEC국제교육협력원 2012 Asia-Pacific Cybereducation Journal Vol.8 No.1
The paper’s proposition is that Mexican public universities potentiate social oriented activity for gsed purposes while agents in Knowledge and Innovation Networking. But they must comply with the structural restrictions of communicative action. The aim is to present communication principles for Knowledge and Innovation Networking (KIN) that promotes Green Sustainable Economic Development (gsed) in Latin American societies, characterized by heterogeneous cultural traits and varied levels of economic and political development, within countries themselves and between them. Prime gsed issues are the preservation of natural resources considering their use and enjoyment by the coming generations, the right to material progress of developing countries as well as the obligation of developed economies to reduce their energy consumption (raw energy and processed commodities). However, the validity of any gsed model is questionable unless it is coherent in terms of what gsed is considered both locally and globally, thus the relevance of networking for knowledge and innovation (see Hidalgo 2011), integrated with regional, national and international innovation systems. How can Knowledge and Innovation Networking (kin) increase university participation in the promotion of gsed? This is a question that this paper aims to answer and provide some strategies to increase participation and contribution to gsed. Knowledge and innovation networks are environments for participation of key social groups where concurrence protocols ease both lawfulness and transparency regarding market issues (global, regional and local) and sustainable development. On-line kin interactions implementation are insufficient for gsed, but will provide participants (state, business, universities and individuals) favorable environments for coordinated actions that represent added value to each and all participants with a reduced hierarchical control because the overall purpose is redefinition of gsed principles that meaningful taking into consideration each participant’s condition.
The Effect of Agave tequilana Weber Inulin on Postprandial Ghrelin Concentration in Obese Patients
Betsabe Contreras-Haro,Jose A. Robles-Cervantes,Manuel Gonzalez-Ortiz,Esperanza Martinez-Abundis,Claudia Espinel-Bermudez,Martha P. Gallegos-Arreola,Karina C. Morgado-Castillo 한국식품영양과학회 2017 Journal of medicinal food Vol.20 No.2
This study was performed to investigate the effect of Agave tequilana Weber inulin on postprandial ghrelin levels in obese patients. A randomized, double-blind, cross-over design was performed. A total of 14 patients were allocated into two groups: one group received a drink that contained 500 mL lemon water, 24 g of A. tequilana Weber inulin, and 75 g glucose and the other group received a placebo drink with 500 mL lemon drink and 75 g of glucose. After a 7-day washout period, the groups were crossed. The primary outcome measure was postprandial ghrelin levels between minute 240 and minute 270. A. tequilana Weber inulin did not change postprandial ghrelin concentration in obese patients.
Characterization of CBD-CdSe1-ySy deposited at low-temperature for photovoltaic applications
J.I. Contreras-Rascón,J. Díaz-Reyes,J.E. Flores-Mena,M. Galvan-Arellano,L.A. Juárez-Morán,R.S. Castillo-Ojeda 한국물리학회 2015 Current Applied Physics Vol.15 No.12
We present the structural and optical characterization of cadmium selenide sulphur (CdSe1-ySy) deposited by chemical bath deposition (CBD) technique at low-temperature (20 ± 2 ℃). The sulphur molar fraction is varied from 0 to 42.13%. The chemical stoichiometry is estimated by energy-dispersive X-ray spectroscopy (EDS). The CdSe1-ySy shows hexagonal wurtzite crystalline phase, which was found by X-ray diffraction (XRD) analysis and it was confirmed by Raman spectroscopy. The average grain size of the CdSe1-ySy films was ranged from 1.20 to 1.68 nm that was determined by Debye-Scherrer equation from W(002) direction and it was confirmed by high resolution transmission electron microscopy (HRTEM). This average grain size indicates a high quantum confinement because of it is smaller than the Bohr radii of CdS (2.8 nm) and CdSe (4.9 nm). Raman spectra show two dominant vibrational bands about 208 and 415 cm-1 associated at CdSe-1LO-like and CdSe-2LO-like. By transmittance measurements at room temperature are found that the optical band gap energies vary from 1.86 to 2.16 eV in the range of investigated sulphur molar fraction. Room temperature photoluminescence shows radiative bands in the visible range and a dominant band in the UV range, approximately 3.0 eV, which can be associated with a radiative transition, bound exciton to donor impurity.
Juan Jose Contreras Castillo APEC국제교육협력원 2007 Asia-Pacific Cybereducation Journal Vol.3 No.1
arched for standards in teacher competency for the different economies in the Asia-Pacific region. We found information about them in several documents contained in the UNESCO and in the Ministry of Education of each economy. After that, we looked for common strategies to propose a model for teacher training with ICT and in the use and introduction of ICT in schools. We found that there are a lot of commonalities, specifically that teachers should be competent in a variety of software and technological tools appropriated to the topic they teach and the students 'age, assess the software and technological tools relevant to the topic they teach and their potential to be used in class, use the computers in a constructive way and to prepare and utilize work plans that incorporate the use of technology. But despite all the advances and recommendations about ICT introduction in teacher training, we still lack a common model that allows us to exchange and share information regarding this issue, even within the Asia-Pacific region. We tried to put these competencies in one single place so that people can access and consider them in developing a teacher training or ICT introduction to classrooms programs.
Beatriz Angélica Toscano de laTorre,Juan Contreras-Castillo,Norma Barón-Ramírez APEC국제교육협력원 2020 Asia-Pacific Cybereducation Journal Vol.16 No.2
This essay analyzes the impact of COVID-19 in higher education based on national policies implemented during the current outbreak. Additionally, it enlists and discusses the proposed strategies developed to support higher education in a post-pandemic scenario based on educational and political perspectives.
Winery Grape-residue Extract: Effects on Quality and Sensory Attributes of Cooked Chicken Meat
Ligianne Din Shirahigue,Carmen J. Contreras-Castillo,Miriam Mabel Selani,Ana Paula Nadai,Gerson Barreto Mourão,Cláudio Rosa Gallo 한국식품과학회 2011 Food Science and Biotechnology Vol.20 No.5
Sensory analysis, instrumental color, pH, and thiobarbituric acid reactive substances (TBARS) were determined on cooked chicken meat with and without grape seed extract during refrigerated storage. The effectiveness of extracts of winery grape residue from the grape varieties ‘Isabel’ and ‘Niagara’ were tested to evaluate their effectiveness at delaying lipid oxidation in cooked chicken meat and stored under refrigeration (4±1ºC). The samples were aerobically and vacuum packaged and stored for 14 days. ‘Isabel’ grape extract (IGE) and ‘Niagara’ grape extract (NGE) proved effective at promoting oxidative stability when applied at concentrations of 40 or 60 mg of gallic acid equivalents (GAE)/kg, with results similar to the synthetic antioxidant butylated hydroxytoluene (BHT). The antioxidant efficiency of the extracts was highly dependent on the concentration used. The addition of grape-residue extracts combined with vacuum packaging proved to be a good method for increasing lipid stability in cooked chicken meat stored under refrigeration.
Macrina Pe´rez-Lo´pez,Rodolfo Garcı´a-Contreras,Marcos Soto-Herna´ndez,Jose´ Salud Rodrı´guez-Zavala,Mariano Martı´nez-Va´zquez,Francisco Javier Prado-Galbarro,Israel Castillo-Jua´rez 한국식품영양과학회 2018 Journal of medicinal food Vol.21 No.4
Seed oils from oleaginous plants are rich in fatty acids (FAs) that play important roles in the health of the consumers. Recent studies indicate that FA also can play an important role in communication and regulation of virulence in bacteria. Nevertheless, evidence demonstrating protection against bacterial infections mediated by their quorum sensing inhibition (QSI) activity is scarce. In this study, sunflower, chia, and amaranth oils, were assayed for their QSI capacity by inhibiting violacein production and alkaline exoprotease activity of Chromobacterium violaceum. In vitro assays revealed that the oils exhibited QSI activities, whereas in vivo they delayed death of mice inoculated intraperitoneally with the bacterium. Gas chromatography coupled with mass spectrometry analysis of the oils indicated the presence of saturated FA (SAFA) and unsaturated FA as main components. Through a structure–activity relationship study of free FAs, bactericidal effect was identified mainly for polyunsaturated FAs, whereas QSI activity was restricted to SAFA of chains 12–18 carbon atoms in length. These data correlate with a possible interaction suggested by molecular docking analysis of lauric, myristic, and stearic acids with the CviR protein. Our study highlights the antiquorum sensing potential of SAFA, which may be future antivirulence therapeutic agents for the treatment of bacterial infections.