Chemistry-Didactics-Ecology-Metrology最新文献_第2页

Study of Conceptual Knowledge and Mode of Reasoning Relating to the Characteristics of Covalent Bonds in Future Algerian Physics Teachers 阿尔及利亚未来物理教师与共价键特征相关的概念知识和推理模式研究

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Chemistry-Didactics-Ecology-Metrology Pub Date : 2022-05-27 DOI: 10.2478/cdem-2022-0001

Salah Hazzi, Idris Djouahra, A. Dumon

引用次数: 0

Chemical Electricity 化学电力

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Chemistry-Didactics-Ecology-Metrology Pub Date : 2021-12-01 DOI: 10.2478/cdem-2021-0001

Z. Szydło

引用次数: 0

Evaluation of Czech Non-Chemical Vocational School Chemistry Textbooks’ Text Difficulty 捷克非化学职业学校化学教材文本难度评价

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Chemistry-Didactics-Ecology-Metrology Pub Date : 2021-12-01 DOI: 10.2478/cdem-2021-0008

M. Rusek, L. Vosyková

{"title":"Evaluation of Czech Non-Chemical Vocational School Chemistry Textbooks’ Text Difficulty","authors":"M. Rusek, L. Vosyková","doi":"10.2478/cdem-2021-0008","DOIUrl":"https://doi.org/10.2478/cdem-2021-0008","url":null,"abstract":"Abstract The paper follows the first author's continuous work on chemistry textbook analysis. In the previous paper published in CERP, attention was given to the procedure and results for analysing text-difficulty in lower-secondary chemistry textbooks in Czechia. In this paper, attention was given to non-chemical vocational school chemistry textbooks. They are intended for the most numerous group of upper-secondary students. The goal of the study was to assess the to what extent could students read the textbook texts on their own with appropriate understanding. Therefore, only the textual component was evaluated. The same method (Nestler-Prucha-Pluskal) as in the previous paper was used to analyse the textbooks’ text-difficulty (readability). The results show there are two books which are suitable for students’ own learning. However, there are four textbooks which contain text of high difficulty, including too many scientific terms that they are suitable as teacher's guide through terms rather than student's textbooks. The analysis may serve teachers with their textbook choice as well as researchers who operate in the same field who can easily adopt the methodology and compare results.","PeriodicalId":41079,"journal":{"name":"Chemistry-Didactics-Ecology-Metrology","volume":"26 1","pages":"99 - 108"},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49355171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Comparative Analysis of Text Difficulty in Slovak and Canadian Science Textbooks 斯洛伐克语和加拿大语科学教材文本难度的比较分析

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Chemistry-Didactics-Ecology-Metrology Pub Date : 2021-12-01 DOI: 10.2478/cdem-2021-0007

Zuzana Benícková, Karel Vojíř, L'ubomír Held

{"title":"A Comparative Analysis of Text Difficulty in Slovak and Canadian Science Textbooks","authors":"Zuzana Benícková, Karel Vojíř, L'ubomír Held","doi":"10.2478/cdem-2021-0007","DOIUrl":"https://doi.org/10.2478/cdem-2021-0007","url":null,"abstract":"Abstract One of the main purposes of textbooks is the mediation of educational content to students. The factual accuracy of information, as well as the clarity of the text for students plays a crucial role in this aspect. The inadequate text difficulty can complicate students' learning. Comparing different approaches to the text in textbooks, considering the objectives of education, represents key knowledge for teaching materials innovation. This research was therefore focused on the comparison of the Slovak and Canadian science textbooks for lower secondary education. The methodology for assessing text difficulty according to Nestler, Prucha and Pluskal was used for this purpose. The samples of text from the textbooks for 6th and 8th grade of lower-secondary school were assessed. It was found that the text in Slovak textbooks is significantly more difficult. While from the syntactic difficulty point of view differences were rather partial, the significant differences were found in the semantic difficulty of the text. The Slovak textbooks are burdened with an excessive number of professional terms. Considering the results in measuring scientific literacy, this approach to the text in the Slovak textbooks is not effective. The results obtained are therefore an incentive to revise used educational materials.","PeriodicalId":41079,"journal":{"name":"Chemistry-Didactics-Ecology-Metrology","volume":"26 1","pages":"89 - 97"},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48655725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heavy Metals Accumulation in Silver Fir Needles in Swietokrzyski National Park Swietokrzyski国家公园银杉针叶中重金属的积累

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Chemistry-Didactics-Ecology-Metrology Pub Date : 2021-12-01 DOI: 10.2478/cdem-2021-0005

R. Kozłowski, Małgorzata Strzyż

引用次数: 4

Civilisation and Its Environmental Consequences 文明及其环境后果

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Chemistry-Didactics-Ecology-Metrology Pub Date : 2021-12-01 DOI: 10.2478/cdem-2021-0002

S. I. Sulimov, I. V. Chernigovskikh, R. A. Cherenkov, V. D. Chernykh, Boris V. Vasiliev

引用次数: 0

Environmental Benefits of Catch Crops Cultivation 渔获作物种植的环境效益

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Chemistry-Didactics-Ecology-Metrology Pub Date : 2021-12-01 DOI: 10.2478/cdem-2021-0009

L. Pawłowski, C. Kwiatkowski, E. Harasim, Olimpia Klikocka-Wiśniewska, W. Cel, J. Kujawska

{"title":"Environmental Benefits of Catch Crops Cultivation","authors":"L. Pawłowski, C. Kwiatkowski, E. Harasim, Olimpia Klikocka-Wiśniewska, W. Cel, J. Kujawska","doi":"10.2478/cdem-2021-0009","DOIUrl":"https://doi.org/10.2478/cdem-2021-0009","url":null,"abstract":"Abstract The role of catch crops in modern agriculture has increased in recent years. In addition to a production of animal feed, they have a positive impact on quality of soil. This study determined the suitability of selected stubble catch crops (white mustard, lacy phacelia, and a mixture of faba bean + spring vetch) to improve production, economic and energy effects of spring wheat grown in 3-year monoculture relative to the control treatment (without catch crops). Two tillage systems were used: conventional tillage and no-tillage (conservation tillage). A field study was conducted over the period 2014-2016 at the Czeslawice Experimental Farm, Lubelskie Voivodeship, Poland. The study proved the high suitability of catch crops to increase the spring wheat yields (under both tillage systems). Regardless of the catch crops, the productivity of wheat was higher under conventional tillage. The catch crops (in particular white mustard) and the conservation tillage system contributed to an improved energy efficiency index of production. The white mustard catch crop also had the most beneficial effect on the economic profitability of spring wheat production. This was due to the low cost of cultivation of this catch crop and its beneficial impact on obtaining high yields of spring wheat.","PeriodicalId":41079,"journal":{"name":"Chemistry-Didactics-Ecology-Metrology","volume":"26 1","pages":"109 - 121"},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42533991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Using the Raspberry Pi Microcomputers in STEM Education in Technically Oriented High Schools 在技术型高中STEM教育中使用树莓派微型计算机

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Chemistry-Didactics-Ecology-Metrology Pub Date : 2021-12-01 DOI: 10.2478/cdem-2021-0006

Š. Major, M. Hubálovská, M. Wacławek

引用次数: 3

Low-Cost Sensors for Air Quality Monitoring - the Current State of the Technology and a Use Overview 用于空气质量监测的低成本传感器——技术现状及应用综述

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Chemistry-Didactics-Ecology-Metrology Pub Date : 2021-12-01 DOI: 10.2478/cdem-2021-0003

P. Buček, Petr Maršolek, J. Bílek

{"title":"Low-Cost Sensors for Air Quality Monitoring - the Current State of the Technology and a Use Overview","authors":"P. Buček, Petr Maršolek, J. Bílek","doi":"10.2478/cdem-2021-0003","DOIUrl":"https://doi.org/10.2478/cdem-2021-0003","url":null,"abstract":"Abstract In recent years the monitoring of air quality using cheap sensors has become an interesting alternative to conventional analytical techniques. Apart from vast price differences conventional techniques need to be performed by the trained personnel of commercial or research laboratories. Sensors capable of measuring dust, ozone, nitrogen and sulphur oxides, or other air pollutants are relatively simple electronic devices, which are comparable in size to a mobile phone. They provide the general public with the possibility to monitor air quality which can contribute to various projects that differ in regional scale, commercial funding or community-base. In connection with the low price of sensors arises the question of the quality of measured data. This issue is addressed by a number of studies focused on comparing the sensor data with the data of reference measurements. Sensory measurement is influenced by the monitored analyte, type and design of the particular sensor, as well as by the measurement conditions. Currently sensor networks serve as an additional source of information to the network of air quality monitoring stations, where the density of the network provides concentration trends in the area that may exceed specific measured values of pollutant concentrations and low uncertainty of reference measurements. The constant development of all types of sensors is leading to improvements and the difference in data quality between sensors and conventional monitoring techniques may be reduced.","PeriodicalId":41079,"journal":{"name":"Chemistry-Didactics-Ecology-Metrology","volume":"26 1","pages":"41 - 54"},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47985278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Epigenetics is Promising Direction in Modern Science 表观遗传学是现代科学的发展方向

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Chemistry-Didactics-Ecology-Metrology Pub Date : 2021-12-01 DOI: 10.2478/cdem-2021-0010

T. Fartushok, Orysia Kovalyshyn, Yuriy Fedevych, Igor Tanchyn, V. Zhykovskiy

引用次数: 0