Management Sustainability - past present and future trends

Research related to sustainable management is rapidly increasing in quantity and is found in divergent literature and disciplines. Now is the time to offer a comprehensive review that identifies, synthesizes, and integrates previous research and highlights knowledge gaps and the way forward. This methodical literature search helped systematize 86 articles in the Scopus database published by 2018. Using a systematic and in-depth content analysis using bibliometric techniques, the authors reviewed the articles and identified the main theories used and the methodological orientations in these. articles. This review helps to identify significant knowledge gaps in terms of theoretical orientation and core content. The main contributions of this paper are: to outline and summarize a multilevel analysis of emerging sustainable management literature; integrate and extract potential theoretical contributions in this field; and indicate directions for future research.

The Influence of Paternalistic Leadership on the Development of Oriental Critical Thinking

In the context of globalization, critical thinking is still regarded as the core content of higher education. The difference between Eastern and Western cultures has a key impact on understanding critical thinking. When the current literature studies the influence of culture on critical thinking, it mainly considers from the macro level, mainly including ethnic history, traditional customs, religious beliefs, art, ethics, and so on. However, from a specific and micro cultural perspective, how critical thinking is influenced by a culture still lacks effective research. This paper studies the influence of Confucian paternalistic leadership on the development of critical thinking in the East from a specific cultural perspective. The study discovers that Asians are easier to understand how things change and they are more tolerant to conflict, which means that they see things as interrelated and interdependent. They are more likely to use intuitive and experience-based reasoning if there is a conflict between intuitive and logical reasoning. Benevolence and hierarchy in paternalistic leadership promote the formation of cooperative critical thinking in improving the operation of organizations so that the characteristics of oriental critical thinking can be analyzed more comprehensively.

Preparation and Characterization of Nano-CaCO3/Ceresine Wax Composite Shell Microcapsules Containing E-44 Epoxy Resin for Self-Healing of Cement-Based Materials

As an intelligent material, microcapsules can efficiently self-heal internal microcracks and microdefects formed in cement-based materials during service and improve their durability. In this paper, microcapsules of nano-CaCO3/ceresine wax composite shell encapsulated with E-44 epoxy resin were prepared via the melt condensation method. The core content, compactness, particle size distribution, morphologies, chemical structure and micromechanical properties of microcapsules were characterized. The results showed that the encapsulation ability, mechanical properties and compactness of microcapsules were further improved by adding nano-CaCO3 to ceresine wax. The core content, elastic modulus, hardness and weight loss rate (60 days) of nano-CaCO3/ceresine wax composite shell microcapsules (WM2) were 80.6%, 2.02 GPA, 72.54 MPa and 1.6%, respectively. SEM showed that WM2 was regularly spherical with a rough surface and sufficient space inside the microcapsules to store the healing agent. The incorporation of WM2 to mortar can greatly improve the self-healing ability of mortar after pre-damage. After 14 days of self-healing, the compressive strength recovery rate, proportion of harmful pores and chloride ion diffusion coefficient recovery rate increased to 90.1%, 45.54% and 79.8%, respectively. In addition, WM2 also has good self-healing ability for mortar surface cracks, and cracks with initial width of less than 0.35 mm on the mortar surface can completely self-heal within 3 days.

In situ poly(melamine-formaldehyde) microencapsulation of diglycidyl ether of bisphenol-A epoxy and pentaerythritol tetrakis(3-mercaptopropionate) for self-healing applications

In this study, microcapsules as potential candidates for self-healing agents were prepared by in situ polymerisation, taking place in oil-in-water emulsion. Poly(melamine-formaldehyde) is employed as shell material and diglycidyl ether of bisphenol A as polymerisable core materials and Pentaerythritol Tetrakis(3-Mercaptopropionate) as its hardener. The geometry, shell features, size distributions, core content, and the reactivity of the microcapsules were studied by scanning electron microscopy (SEM), optical microscopy (OM), Soxhlet extraction method and differential scanning calorimetry (DSC). Microcapsules with different sizes and distributions were obtained by adjusting the stirring speeds during the preparation stage. From the results, it was established that the spherical microcapsules fabricated using this technique, resulted in satisfactory size and shell structure with shell thickness of less than 2 μm. The microcapsules possess high core content at about 90 wt.% for each size range of microcapsules and it was also observed that the viscosity of the core content decreased at an elevated temperature. The results obtained in this work indicate that these microcapsules possess the characteristics that can be potentially used for self-healing applications.

Student Perception of Face-to-Face vs Online Language Training

Since the spring of 2020, practically all educational institutions have transferred instruction online. However, questions remain about whether online learning is as effective as face-to-face (F2F) one. This is especially relevant in the case of non-formal adult education, as students have competing demands on their time, established learning habits, and their relationship with a training provider is short-term. This paper compares results of students’ evaluation of teaching (SET) collected from two adult learner cohorts of similar demographic characteristics. While both cohorts had English language courses of the same core content and volume, one studied F2F, the other online. A Likert-type questionnaire form is used for the analysis. Analysis of the results from both groups reveals no statistically significant differences in students’ opinions. Moreover, students are consistent in their overall favorable attitude to both learning formats. A very slight preference towards F2F format is detected in some aspects of the course.

Silica-Based Core-Shell Nanocapsules: A Facile Route to Functional Textile

In this work, we present a surfactant-free miniemulsion approach to obtain silica-based core-shell nanocapsules with a phase change material (PCM) core via in-situ hydrolytic polycondensation of precursor hyperbranched polyethoxysiloxanes (PEOS) as silica shells. The obtained silica-based core-shell nanocapsules (PCM@SiO2), with diameters of ~400 nm and silica shells of ~14 nm, reached the maximum core content of 65%. The silica shell had basically no significant influence on the phase change behavior of PCM, and the PCM@SiO2 exhibited a high enthalpy of melt and crystallization of 123–126 J/g. The functional textile with PCM@SiO2 has been proposed with thermoregulation and acclimatization, ultraviolet (UV) resistance and improved mechanical properties. The thermal property tests have shown that the functional textile had good thermal stability. The functional textile, with a PCM@SiO2 concentration of 30%, was promising, with enthalpies of melting and crystallization of 27.7 J/g and 27.8 J/g, and UV resistance of 77.85. The thermoregulation and ultraviolet protection factor (UPF) value could be maintained after washing 10 times, which demonstrated that the functional textile had durability. With good thermoregulation and UV resistance, the multi-functional textile shows good prospects for applications in thermal comfort and as protective and energy-saving textile.

A rapid prototyping approach for intensive field courses to build scientific and professional skills

This paper reports on the design and evaluation of Field Studies in Functional Ecology (FSFE), a two-week intensive residential field course that engages students to master core content in functional ecology alongside skills that facilitate their transition from ‘student’ to ‘scientist’. This paper provides an overview of the course structure, showing how the constituent elements have been designed and refined over successive iterations of the course. We detail how FSFE students are guided first to develop their own research questions (Field Problems), and then through a structured reflective approach of rapid prototyping and iterative refinement of each stage of the research process. Using extensive evaluation data, we show how, coached by experts within a cognitive apprenticeship framework, FSFE students develop a coherent and nuanced understanding of how to approach and execute ecological studies. The sophisticated knowledge and skills as ecology researchers that they develop during the course is highlighted through high quality presentations and peer-reviewed publications in a student-led journal. We illustrate how field course elements can be used to provide cognitive, affective and reflective tools that allow students to gain maximum value from their educational journey, and the confidence to consider research in their future careers.

Reduced failure rates associated with playing a new online game developed to support learning of core content in human systems physiology

A digital mobile card-matching game called eFlip was developed to assist second-year undergraduate medical science students to learn core content and understand key associations in physiology. Our team developed customized content of core physiological associations, of increasing difficulty, for upload on a generic card-matching platform. The generic game was extended with add-ons coded to allow identification and access of student usage data for students who consented to have their game usage linked to academic performance such as final course marks and grades. Here, we describe the development of the eFlip game content, the student usage profile, and the game’s impact on learning. Students were invited to use eFlip prior to and during the final examination period. Of those who used eFlip, 152 students consented to participate in a study of game use on learning performance outcomes. Within the students who consented, 74 played the game and 78 did not play the game (nonplayers). The mean course mark of the students who played the game [69.57%; 95% confidence level (CI) (67.22, 71.92)] was higher than that of the nonplayers [65.33%; 95% CI (62.67, 67.99)] ( P = 0.02). Playing eFlip was also associated with reduced failure rates in students who played the game (1% failure rate) compared with the students who did not play the game (10% failure rate; P = 0.02). The number of games played by students peaked just prior to the course final examination. Overall, students who chose to play eFlip demonstrated improved grades that were associated with a higher probability of passing the physiology course.

Analysis of the Power Grid Automation System Architecture Based on Distributed Scheduling

As the core content of urban power dispatching operation in the new era, power grid automation can ensure the safety and stability of urban power consumption on the basis of reducing resource consumption. Using the distributed scheduling method in the system can not only improve the quality of power transmission, but also improve the speed of system operation. Therefore, on the basis of understanding the distributed task scheduling method, this paper analyzes the independent task dynamic optimization level scheduling algorithm based on MPSoC, and carries on the in-depth understanding of the practical application effect, so as to prove the positive role of distributed scheduling in the application of power grid automation system.

The multivoiced English-for-young-learners subject in Sweden: Spaces for plurilingualism?

Already in primary school in Sweden, English is one of several language subjects within a larger curriculum. Despite this, the curricular space for the English subject to leverage and contribute to plurilingual competence has hitherto received little attention. This study centres on the construction of the primary English subject in the 2011 (revised 2018) curriculum, also in relation to other language syllabi, using the concept of ‘voice as perspective on topic’ (Linell, 2009) to analyse ideologies that are salient, backgrounded, and absent in the English syllabus and those transcending language syllabi boundaries. Findings show that different voices are salient in the English subject in years 1–3 and 4–6, constructing an oral-based and fun subject contra an increasingly academic and communicatively-focused subject respectively. Monoglossic ideologies in English language teaching are challenged insofar as English is not positioned as a language belonging to specific nations or speakers. However, there exists no explicit space for plurilingual competence in assessment, where instead pupils’ monolingual performances are assessed. In addition, unlike other language syllabi, the English syllabus contains no explicit mention of multilingual awareness-raising of languages in the learners’ repertoire, thereby limiting explicit space for plurilingualism. Nevertheless, across the language syllabi, a functional view of language is salient, where communicative strategies, language form for functionally justified ends, and text genres form part of the core content of the education. This creates implicit spaces for teaching and learning in the English subject to leverage and contribute to developing underlying functional linguistic proficiency (see Cummins, 2000, 2007).