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Adri? de Le? Arias 한국라틴아메리카학회 2007 라틴아메리카연구 Vol.20 No.3
Regional economic growth in Mexican manufacturing after trade liberalization in 1984-1985, and in particular under the North American Free Trade Agreement (NAFTA), signed in 1994, has been characterized by a faster growth in employment and output in the Northern Border region. In this article, these regional dynamics are analyzed and related to productivity, that is output per worker growth, in that region and compared to others regions in the country from 1970 to 2004. This study concludes that there is not a clear association between TLCAN and greater economic growth in the Northern Border region.
Electric vehicle charging demand forecasting model based on big data technologies
Arias, M.B.,Bae, S. Applied Science Publishers 2016 APPLIED ENERGY Vol.183 No.-
<P>This paper presents a forecasting model to estimate electric vehicle charging demand based on big data technologies. Most previous studies have not considered real-world traffic distribution data and weather conditions in predicting the electric vehicle charging demand. In this paper, the historical traffic data and weather data of South Korea were used to formulate the forecasting model. The forecasting processes include a cluster analysis to classify traffic patterns, a relational analysis to identify influential factors, and a decision tree to establish classification criteria. The considered variables in this study were the charging starting time determined by the real-world traffic patterns and the initial state-of-charge of a battery. Example case studies for electric vehicle charging demand during weekdays and weekends in summer and winter were presented to show the different charging load profiles of electric vehicles in the residential and commercial sites. The presented forecasting model may allow power system engineers to anticipate electric vehicle charging demand based on historical traffic data and weather data. Therefore, the proposed electric vehicle charging demand model can be the foundation for the research on the impact of charging electric vehicles on the power system. (C) 2016 Elsevier Ltd. All rights reserved.</P>
Final report of key comparison CCM.G-K1: International comparison of absolute gravimeters ICAG2009
Arias, E Felicitas,Jiang, Zhiheng,Robertsson, Lennart,Vitushkin, Leonid,Ruess, Diethard,Ullrich, Christian,Inglis, Dave,Liard, Jacques,Robinson, Ian,Ji, Wangxi,Shuqing, Wu,Lee, Chiungwu,Palinkas, Vojt Springer-Verlag 2012 METROLOGIA -BERLIN- Vol.49 No.-
<P>The International Comparison of Absolute Gravimeters 2009 (ICAG2009) was carried out in September 2009 at the International Bureau of Weights and Measures (BIPM). The ICAG2009 and its data processing were performed in accordance with the agreed Technical Protocol which was approved by the Steering Committee. The pilot laboratory (BIPM) evaluated the final results of the key comparison from the measurements made at the BIPM in the framework of ICAG2009. A pilot study run in parallel allowed evaluation of the offsets for absolute gravimeters from institutes not fulfilling the requirements for participating in the key comparison. The gravity values at the five stations, and the offsets for each absolute gravimeter, were obtained by a weighted least squares fit. The results indicate that all participating gravimeters are consistent within their expanded uncertainties.</P><P>Main text.To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.</P><P>The final report has been peer-reviewed and approved for publication by the CCM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).</P>
Effects of Hybrid and Maturity on Maize Stover Ruminal Degradability in Cattle Fed Different Diets
Arias, S.,Di Marco, O.N.,Aello, M.S. Asian Australasian Association of Animal Productio 2003 Animal Bioscience Vol.16 No.11
The effect of maize hybrid (Suco and Dekalb 765, DK 765), maturity stage (milk, $R_3$ and 1/2 milk line, $R_5$) and animal diet (Diet 1: 70% lucerne hay+30% maize silage; Diet 2: 50% maize silage+20% sunflower meal+30% maize grain) on ruminal stover dry matter (DM) degradability was studied. Additionally, morphological and chemical plant composition was evaluated. Fodder samples ground at 2 mm were incubated in three Holstein steers (400 kg body weight) using the in situ technique. Ruminal degradation kinetics was studied and the effective degradability (ED) was estimated for an assumed kp of 5%/h. The in situ data was analyzed in a complete randomized block design with the animals as blocks. Significant interactions between hybrid${\times}$diet and maturity${\times}$diet on kinetic digestion parameters were detected. In Diet 1, hybrids did not differ in degradable fraction, kd or ED, although a minor difference (p<0.05) in the soluble fraction was found (25.5 and 23.2% for Suco and DK 765, respectively). In Diet 2, the DK 765 had greater degradable fraction (p<0.001) but smaller (p<0.01) kd than Suco, without differences in the soluble fraction or in ED. Anticipating the harvest increased ED of stover from 37.5% in $R_5$ to 44.6% in $R_3$ (average values across hybrids and diets) due to the increase (p<0.001) in the soluble fraction ($R_5$: 22.6%, $R_3$: 28.8%). It is concluded that hybrids had similar stover in situ DM degradability and that soluble fraction represent the main proportion of degradable substrates. Advancing the date of harvesting may not improve the in situ DM degradability of whole maize plant silage since the increase in stover quality is counteracted by the depression in the grain-to-stover ratio. The diet of the animal consuming silage might not improve stover utilization either.
Adolescent civic engagement education centered in antiracist praxis
Arias Laura,Parameswaran Gowri 한국다문화교육학회 2021 Multicultural Education Review Vol.13 No.3
US youth have demonstrated a deeper involvement in social and political issues today than in earlier decades. This trend is reflected in more active voting behaviours as well as more protest and general activism efforts. This paper offers teachers ways to engage students in facilitating and infusing antiracism thought and behaviour into their civic engagement learning. One of the most significant social and political issues today is racial injustice and its deep connection to other forms of injustice sought to be remedied through political participation. Thus, understanding the relationship between antiracist action and civic and political involvement should be central to civic engagement education. Based on Freire’s discussions on praxis as well as his conceptualization of critical consciousness, which has been expanded on by more recent scholars, along with the scholarship on the necessity of antiracism in our society and schools, we formulate and present a conceptual framework, consisting of four major pillars, for antiracist civic engagement adolescent education. The pillars can be incorporated by antiracist educators with ease and can be scaffolded into their teaching. Each pillar is accompanied by practical exercises that instructors could use in their own antiracist teaching.
RESEARCH ARTICLES : Mapping a New Source of Self-fertility in Perennial Ryegrass (Lolium perenne L.)
( Andrea Arias Aguirre ),( Bruno Studer ),( Javier Do Canto ),( Ursula Frei ),( Thomas Lubberstedt ) 한국육종학회 2013 Plant Breeding and Biotechnology Vol.1 No.4
There is a rising interest of moving towards hybrid breeding in out crossing species. Self-compatibility (SC), which occurs at low rates in self-incompatible species, could be used to develop inbred lines, a key requirement for hybrid breeding programs. In perennial ryegrass, the existence of SC independent from the self-incompatibility (SI) loci S and Z has been reported. In this study, we used 98 F2 individuals from a cross between a self-compatible ecotype and an individual of the VrnA mapping population that were tested with markers for two candidate linkage groups 3 and 5 as well as markers for candidate regions at the S and Z locus. We were able to determine a tentative location of a SC locus and tested the possible interaction to other loci involved in SI and SC. This information will help to fine map the SC locus, and for marker-assisted selection.