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Reparación del ADN: un asunto de vida…y de Premios Nobel dna修复:生命和诺贝尔奖的问题
Educacion Quimica Pub Date : 2016-04-01 DOI: 10.1016/j.eq.2016.02.002
Jorge Vázquez-Ramos
{"title":"Reparación del ADN: un asunto de vida…y de Premios Nobel","authors":"Jorge Vázquez-Ramos","doi":"10.1016/j.eq.2016.02.002","DOIUrl":"10.1016/j.eq.2016.02.002","url":null,"abstract":"<div><p>DNA repair studies conducted in recent decades by researchers Tomas Lindahl, Paul Modrich and Aziz Sancar were awarded with the 2015 Nobel Prize in Chemistry. Here briefly the basis of this research is presented.</p></div>","PeriodicalId":39011,"journal":{"name":"Educacion Quimica","volume":"27 2","pages":"Pages 93-96"},"PeriodicalIF":0.0,"publicationDate":"2016-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eq.2016.02.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128209707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
“Green” Suzuki-Miyaura cross-coupling: An exciting mini-project for chemistry undergraduate students “绿色”铃木-宫浦交叉耦合:化学本科生的一个令人兴奋的小项目
Educacion Quimica Pub Date : 2016-04-01 DOI: 10.1016/j.eq.2015.11.006
Bruna Pereira Vargas, Clarissa Helena Rosa, Diego da Silva Rosa, Gilber Ricardo Rosa
{"title":"“Green” Suzuki-Miyaura cross-coupling: An exciting mini-project for chemistry undergraduate students","authors":"Bruna Pereira Vargas,&nbsp;Clarissa Helena Rosa,&nbsp;Diego da Silva Rosa,&nbsp;Gilber Ricardo Rosa","doi":"10.1016/j.eq.2015.11.006","DOIUrl":"10.1016/j.eq.2015.11.006","url":null,"abstract":"<div><p>A three-week mini-project is described for an experimental Physical Chemistry or Organic Chemistry course. The activities include synthesis of a biphenyl (4-methoxybiphenyl) via the Suzuki-Miyaura cross-coupling reaction using an adapted domestic microwave oven. The technical skills and concepts that are typically presented in practical chemistry courses are covered, including microwave heating, separation of mixtures, TLC techniques, melting range determination, stoichiometric calculations, and GC–MS techniques.</p></div>","PeriodicalId":39011,"journal":{"name":"Educacion Quimica","volume":"27 2","pages":"Pages 139-142"},"PeriodicalIF":0.0,"publicationDate":"2016-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eq.2015.11.006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127277537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Nicolas-Jean-Baptiste-Gaston Guibourt
Educacion Quimica Pub Date : 2016-04-01 DOI: 10.1016/j.eq.2015.09.011
Jaime Wisniak
{"title":"Nicolas-Jean-Baptiste-Gaston Guibourt","authors":"Jaime Wisniak","doi":"10.1016/j.eq.2015.09.011","DOIUrl":"10.1016/j.eq.2015.09.011","url":null,"abstract":"<div><p>Nicolas-Jean-Baptiste-Gaston Guibourt (1790–1867), a French pharmacist, who studied the oxides, sulfides, and other compounds of mercury, arsenic and its compounds, a large number of natural products, among them turpentine, starch, astringent juices, and musk; also established the norm to express the power of pepsin.</p></div>","PeriodicalId":39011,"journal":{"name":"Educacion Quimica","volume":"27 2","pages":"Pages 163-171"},"PeriodicalIF":0.0,"publicationDate":"2016-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eq.2015.09.011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117016393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studying the importance of soil organic matter: An educational proposal for secondary education 研究土壤有机质的重要性:中等教育的教育建议
Educacion Quimica Pub Date : 2016-01-01 DOI: 10.1016/j.eq.2015.09.007
Daniel Zuazagoitia, José Domingo Villarroel
{"title":"Studying the importance of soil organic matter: An educational proposal for secondary education","authors":"Daniel Zuazagoitia,&nbsp;José Domingo Villarroel","doi":"10.1016/j.eq.2015.09.007","DOIUrl":"10.1016/j.eq.2015.09.007","url":null,"abstract":"<div><p>Although the importance of including in the curriculum of all educational levels issues related to soil science has been strongly highlighted, the fact is that the importance that the quality and availability of organic matter in the quality of soil have received very little attention when it comes to considering educational practices in classrooms. This paper brings an educational proposal for teaching the transcendence of organic matter in soil at secondary level. The learning unit presented is based on essential chromatography techniques and allows the qualitative study of soil organic matter. The ultimate purpose is to offer basic educational tools for reflection on the implication that soil has in order to maintain biodiversity and food production.</p></div>","PeriodicalId":39011,"journal":{"name":"Educacion Quimica","volume":"27 1","pages":"Pages 37-42"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eq.2015.09.007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117247534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Ajustando datos químicos con Excel: un tutorial práctico 用Excel调整化学数据:一个实用教程
Educacion Quimica Pub Date : 2016-01-01 DOI: 10.1016/j.eq.2015.09.009
José Marcos Jurado , Roberto Muñiz-Valencia , Angela Alcázar , Silvia Guillermina Ceballos-Magaña , Jorge González
{"title":"Ajustando datos químicos con Excel: un tutorial práctico","authors":"José Marcos Jurado ,&nbsp;Roberto Muñiz-Valencia ,&nbsp;Angela Alcázar ,&nbsp;Silvia Guillermina Ceballos-Magaña ,&nbsp;Jorge González","doi":"10.1016/j.eq.2015.09.009","DOIUrl":"10.1016/j.eq.2015.09.009","url":null,"abstract":"<div><p>Excel is spreadsheets software included in Microsoft Office that is used in a high number of public and private companies all over the world. This program allows carrying out many operations such as fitting experimental data to mathematical functions. These tasks are usually performed in chemical laboratories and, accordingly, it seems reasonable to train professionals in the use of these tools. In this work, four fitting methodologies using this program have been studied by solving some practical examples of chemical data, considering their advantages and disadvantages.</p></div>","PeriodicalId":39011,"journal":{"name":"Educacion Quimica","volume":"27 1","pages":"Pages 21-29"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eq.2015.09.009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121286372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
La cultura material en la cátedra y gabinete de Química de la Escuela Nacional Preparatoria a finales de siglo xix 19世纪末国家预科学校化学讲座和内阁中的物质文化
Educacion Quimica Pub Date : 2016-01-01 DOI: 10.1016/j.eq.2015.09.010
Felipe León Olivares
{"title":"La cultura material en la cátedra y gabinete de Química de la Escuela Nacional Preparatoria a finales de siglo xix","authors":"Felipe León Olivares","doi":"10.1016/j.eq.2015.09.010","DOIUrl":"10.1016/j.eq.2015.09.010","url":null,"abstract":"<div><p>The aim of this paper is to analyze the Chemistry lecture and cabinet in the Escuela Nacional Preparatoria (ENP by its acronym in Spanish) at the end of 19th century. Nowadays, the ENP is part of the Universidad Nacional Autónoma de México's (UNAM by its acronym in Spanish) high school subsystem. On one hand, the study to show the material culture of the ENP's Chemistry cabinet, as part of the Chemistry lecture and the lecturer's academic formation. On the other hand, the books that were used during the lectures between the years 1867 and 1900. Finally, the work is based on archive work, such as the UNAM's Historic Archive through the Fondo Escuela Nacional Preparatoria. Furthermore, the UNAM's Archivo Histórico de la Antigua Escuela Nacional de Medicina (AHAENM by its acronym in Spanish), particularly the student's Files.</p></div>","PeriodicalId":39011,"journal":{"name":"Educacion Quimica","volume":"27 1","pages":"Pages 74-81"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eq.2015.09.010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122203770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
O papel da argumentação na mudança conceitual e suas relações com a epistemologia de Lakatos 论证在概念变化中的作用及其与拉卡托斯认识论的关系
Educacion Quimica Pub Date : 2016-01-01 DOI: 10.1016/j.eq.2015.08.003
Marina Martins , Rosária Justi , Paula Cristina Cardoso Mendonça
{"title":"O papel da argumentação na mudança conceitual e suas relações com a epistemologia de Lakatos","authors":"Marina Martins ,&nbsp;Rosária Justi ,&nbsp;Paula Cristina Cardoso Mendonça","doi":"10.1016/j.eq.2015.08.003","DOIUrl":"10.1016/j.eq.2015.08.003","url":null,"abstract":"<div><p>The general aim of this paper is analyse the role of argumentation on students’ conceptual change process. In order to do so, we used Lakatos’ theoretical framework to base the analysis of data gathered in a modelling‐based teaching of intermolecular interactions. Data were gathered from video recordings of all lessons involving such learning in a grade 11th class, the researcher's field notes, and the copy of all written activities produced by students. From the results, we propose that the element ‘hard‐core’ of the Lakatosian philosophy plays the role of the claim in the arguments, whilst the element ‘protective belt’ is built by auxiliary hypotheses that can play the role of three elements of argumentation: evidence, claim or arguments. We conclude and advocated that the Lakatos’ theoretical framework is a viable tool for basis the analysis of the students’ knowledge construction since it can support the understanding of the conceptual change process, and of the influence of argumentation on this process in a broad perspective.</p></div>","PeriodicalId":39011,"journal":{"name":"Educacion Quimica","volume":"27 1","pages":"Pages 3-14"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eq.2015.08.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128598429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Educacion Quimica Pub Date : 2016-01-01 DOI: 10.1016/j.eq.2015.10.001
José Antonio Chamizo Guerrero
{"title":"","authors":"José Antonio Chamizo Guerrero","doi":"10.1016/j.eq.2015.10.001","DOIUrl":"https://doi.org/10.1016/j.eq.2015.10.001","url":null,"abstract":"","PeriodicalId":39011,"journal":{"name":"Educacion Quimica","volume":"27 1","pages":"Pages 1-2"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eq.2015.10.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137310525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estrategias didácticas en la enseñanza-aprendizaje: lúdica en el estudio de la nomenclatura química orgánica en alumnos de la Escuela Preparatoria Regional de Atotonilco 教与学的教学策略:Atotonilco地区预备学校学生有机化学命名法的有趣研究
Educacion Quimica Pub Date : 2016-01-01 DOI: 10.1016/j.eq.2015.09.005
Eduardo Zaragoza Ramos , Luis Mexitli Orozco Torres , José Oswaldo Macías Guzmán , María Elena Núñez Salazar , Raúl Gutiérrez González , Diógenes Hernández Espinosa , Claudia Luz Navarro Villarruel , Marcela de Alba Ritz , Rosa Marisela Villalobos Díaz , Norma Alicia Gómez Torres , Rosario Isabel Cerda Vázquez , Alma Delia Gutiérrez Hernández , Karla Anahí Pérez Aviña
{"title":"Estrategias didácticas en la enseñanza-aprendizaje: lúdica en el estudio de la nomenclatura química orgánica en alumnos de la Escuela Preparatoria Regional de Atotonilco","authors":"Eduardo Zaragoza Ramos ,&nbsp;Luis Mexitli Orozco Torres ,&nbsp;José Oswaldo Macías Guzmán ,&nbsp;María Elena Núñez Salazar ,&nbsp;Raúl Gutiérrez González ,&nbsp;Diógenes Hernández Espinosa ,&nbsp;Claudia Luz Navarro Villarruel ,&nbsp;Marcela de Alba Ritz ,&nbsp;Rosa Marisela Villalobos Díaz ,&nbsp;Norma Alicia Gómez Torres ,&nbsp;Rosario Isabel Cerda Vázquez ,&nbsp;Alma Delia Gutiérrez Hernández ,&nbsp;Karla Anahí Pérez Aviña","doi":"10.1016/j.eq.2015.09.005","DOIUrl":"https://doi.org/10.1016/j.eq.2015.09.005","url":null,"abstract":"<div><p>This research aims to implement the ludic like teaching-learning strategy in respect to the subject Chemistry II of the General Baccalaureate (pre-university studies) by Competencies which operates in Atotonilco Regional High School at the University of Guadalajara.</p><p>For this purpose an integrating activity is performed in the thematic content of functional groups of organic chemistry that includes this teaching-learning technique. Therefore, an evaluation of corresponding thematic contents is carried out and through a test resolution like the two school cycles before (2013-B and 2014-A). At last, a variance analysis to 95% of trust is achieved to compare the gotten average by the students in the mentioned school cycles and the 2014-B.</p><p>The results indicate the increase in the corresponding average to school cycle 2013-B by 12.08 points and school cycle 2014-A by 22.03 points. This suggests that ludic like didactic tool can facility the teaching-learning process of this science.</p></div>","PeriodicalId":39011,"journal":{"name":"Educacion Quimica","volume":"27 1","pages":"Pages 43-51"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eq.2015.09.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137310526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
El diagrama de flujo como semáforo de seguridad ecológica de los experimentos de laboratorio 流程图作为实验室实验的生态安全信号
Educacion Quimica Pub Date : 2016-01-01 DOI: 10.1016/j.eq.2015.04.013
Yolanda Marina Vargas-Rodríguez , Adolfo Obaya Valdivia , Suemi Lima Vargas , Anabel Hernández Escamilla , René Miranda Ruvalcaba , Guadalupe Iveth Vargas Rodríguez
{"title":"El diagrama de flujo como semáforo de seguridad ecológica de los experimentos de laboratorio","authors":"Yolanda Marina Vargas-Rodríguez ,&nbsp;Adolfo Obaya Valdivia ,&nbsp;Suemi Lima Vargas ,&nbsp;Anabel Hernández Escamilla ,&nbsp;René Miranda Ruvalcaba ,&nbsp;Guadalupe Iveth Vargas Rodríguez","doi":"10.1016/j.eq.2015.04.013","DOIUrl":"10.1016/j.eq.2015.04.013","url":null,"abstract":"<div><p>In this paper a comprehensive metric that allows the assess to the greenness of the experiments from the flowchart is presented. The corresponding diagram integrates the treatment and disposal of waste, in addition are considered risks to health, the environment and security using pictograms and safety of reactive rhombuses, auxiliary substances, products and wastes. A letter from 13 colors (from red to green) is also shown in RGB and CMYK systems indicating the number of principles of green chemistry that meets each experiment, and which are used as background color in the diagram components.</p></div>","PeriodicalId":39011,"journal":{"name":"Educacion Quimica","volume":"27 1","pages":"Pages 30-36"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eq.2015.04.013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131925714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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