Using an adaptation programme to introduce children to the early years of schooling in Slovakia

The article presents a new adaptation programme entitled ‘With a smile to school’ for pupils of the first year at primary schools. The adaptation programme comprises several methods and measures which are focused on the regulation of pupils’ adaptation process. The efficiency and effectiveness of the adaptation programme were verified through an experiment at selected primary schools in Slovakia in the school year 2016/2017. Based on the experiment results, a proposal for implementation of the adaptation programme to school practice was drawn up. The experiment results were evaluated by means of selected statistical methods.     

校验技术在材料性能理论预测与实验验证中的应用

运用校验技术研究复合材料性能的理论预测值与实验值间的关系.结果表明,借助于校验技术,可以对已有理论进行甄别,并判断出指导实验的最佳理论.这一技术在材料性能研究中的应用可以为理论研究提供新的方法,促进理论与实验间的相互验证和融合.     

Predatory and exploitative behaviour in academic publishing: An assessment

The issue of “predatory” publishing continues to affect many scholars around the world who publish. When one reads the fairly vast literature surrounding “predatory” publishing, there is an erroneous tendency to continue pivoting around Jeffrey Beall's blacklists of “predatory” open access (OA) journals and publishers. However, to be “predatory” involves much more than defining a handful of select behaviours, and it is becoming increasingly important to start defining, or curtailing, the lexicon to avoid referring to any journal or publisher that might display one of the following qualities (exploitative, deceptive, excessive, unscrupulous, abusive, advantageous, manipulative, profit-seeking, or others) as synonymously meaning “predatory”. This paper focuses mainly on the oft-interchangeable terms “predatory” and “exploitation”, and explores the morality of predatory and exploitative actions by applying a deontological ethics approach which implies that certain actions are wrong even if they achieve good consequences, with the understanding that because a predatory entity aims to exploit others, these actions would be considered morally wrong from a deontologist's perspective. In articulating our argument, we attempt to expand the conversation around this important topic, with the hope that it might bring additional clarity to the issue of what might constitute a “predatory” journal or publisher.     

Dynamic profiles using sentiment analysis and twitter data for voting advice applications

Nowadays, political campaigns combine traditional media channels with social media platforms, opening new and promising possibilities for parties and candidates looking for better political strategies and visibility. Voting advice applications (VAAs) recommend parties and candidates that are close to a citizen's political preferences and require the constrution of candidate and party profiles. Profile generation is an essential task in the development of VAAs and requires two steps: an unbiased design of political questionnaires and the collection of all candidates' answers. This paper presents an extension of a VAA, implemented in within the project Participa Inteligente (PI), a social-network platform designed for the 2017 Ecuadorian national elections. This work concentrates on the implementation of dynamic candidate profiling using Twitter data and sentiment analysis as an additional element to the static profile generation of VAAs. The implementation of a dynamic element for VAAs could help mitigate the effect of biased recommendations given during the construction of candidate and party profiles. At the end of this work, the dynamic profile is compared with the classic static elements developed within the PI project. The results show the level of similarities and differences between each of the elements in profile generation. This work provides an ideal basis for future research in the area of VAAs and their interfaces. Additionally, it opens up a broader spectrum of applications for policymakers including decision-making and collaborative working environments toward e-empowerment.     

Twitter as a tool for citizen engagement: An empirical study of the Andalusian municipalities

This paper provides a general overview of the way local governments use Twitter as a communication tool to engage with their citizens. More concretely, it tries to identify factors associated with both the channel activity and citizen engagement, to understand the relationship between media type and citizen engagement and to analyse whether different content generated different levels of engagement. A sample of the 29 most populated Andalusian local governments is examined. The results show that the majority of Andalusian local governments have an official corporate Twitter account with certain level of activity. There is no, however, a significant relationship between the population of a municipality and its citizen's engagement, and there is a significant negative relationship between audience and engagement and between activity and engagement. The findings of the study also show the particular media and content types generate higher engagement than others. This paper contributes to the literature on social media and has practical implications for local governments.     

Effects of elevated CO(2) levels on root morphological traits and Cd uptakes of two Lolium species under Cd stress

This study was conducted to investigate the combined effects of elevated CO₂ levels and cadmium (Cd) on the root morphological traits and Cd accumulation in Lolium multiflorum Lam. and Lolium perenne L. exposed to two CO₂ levels (360 and 1 000 μl/L) and three Cd levels (0, 4, and 16 mg/L) under hydroponic conditions. The results show that elevated levels of CO₂ increased shoot biomass more, compared to root biomass, but decreased Cd concentrations in all plant tissues. Cd exposure caused toxicity to both Lolium species, as shown by the restrictions of the root morphological parameters including root length, surface area, volume, and tip numbers. These parameters were significantly higher under elevated levels of CO₂ than under ambient CO₂, especially for the number of fine roots. The increases in magnitudes of those parameters triggered by elevated levels of CO₂ under Cd stress were more than those under non-Cd stress, suggesting an ameliorated Cd stress under elevated levels of CO₂. The total Cd uptake per pot, calculated on the basis of biomass, was significantly greater under elevated levels of CO₂ than under ambient CO₂. Ameliorated Cd toxicity, decreased Cd concentration, and altered root morphological traits in both Lolium species under elevated levels of CO₂ may have implications in food safety and phytoremediation.     

Numerical investigation and design of thin-walled complex section steel columns

A numerical investigation of thin-walled complex section steel columns with intermediate stiffeners was performed using finite element analysis. An accurate and reliable finite element model was developed and verified against test results. Verification indicates that the model could predict the ultimate strengths and failure modes of the tested columns with reasonable accuracy. Therefore, the developed model was used for the parametric study. In addition, the effect of geometric imperfection on column ultimate strength and the effect of boundary conditions on the elastic distortional buckling of complex section columns were investigated. An equation for the elastic distortional buckling load of fixed-ended columns having different column lengths was proposed. The elastic distortional buckling load obtained from the proposed equation was used in the direct strength method to calculate the column ultimate strength. Generally, it is shown that the proposed design equation conservatively predicted the ultimate strengths of complex section columns with different column lengths.     

Journal ranking should depend on the level of aggregation

Journal ranking is becoming more important in assessing the quality of academic research. Several indices have been suggested for this purpose, typically on the basis of a citation graph between the journals. We follow an axiomatic approach and find an impossibility theorem: any self-consistent ranking method, which satisfies a natural monotonicity property, should depend on the level of aggregation. Our result presents a trade-off between two axiomatic properties and reveals a dilemma of aggregation.     

幼儿教师玩教具制作现状审思

随着幼儿教育事业的发展,玩教具制作对教师及幼儿的价值依然未减。通过对目前幼儿教师玩教具制作现状的调查,总体上幼儿教师玩教具制作表现为：玩教具制作认识错位,功利色彩浓厚;玩教具制作中的＂虚假参与＂与类参与不足;玩教具开发与制作素养有待提升;玩教具制作缺乏良好外在支持环境。因而,今后我们需从内外两方面促使幼儿教师自主、自愿地投身于玩教具制作中。     

Plants have a chance: outdoor educational programmes alter students' knowledge and attitudes towards plants

Outdoor educational programmes are generally believed to be a suitable alternative to conventional biology settings that improve participants' environmental attitudes and knowledge. Here we examine whether outdoor educational programmes focused solely on practical work with plants influence participants' knowledge of and attitudes towards plants. It was found that mean scores of participants' attitudes towards and knowledge of plants significantly increased after the outdoor programme. These effects remained significant even after three months' post‐testing. No similar patterns were found in the control group. Interestingly, the proportion of participants who liked biology as a school subject also significantly increased after the outdoor programme in the experimental group. Females showed better knowledge of plants than males, but attitudes towards plants were similar between genders. Having a garden at home was not associated with better knowledge or attitudes towards plants. Our results reveal that outdoor programmes significantly relieve ‘plant blindness’ and make biology more attractive to pupils.