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1. Many insect species are migratory. As the spring progresses, adults gradually depart from their over‐wintering habitats and arrive in northern zones where they reproduce during the summer. Understanding this transgenerational and highly adaptive migratory behaviour is crucial when interpreting life cycle dynamics of many insect pests.2. Origins of migratory silver Y moths, Autographa gamma (Linnaeus, 1758), captured from Finland, were studied with stable hydrogen analysis of their wings (δ2Hw).3. The difference between spring and autumn generation δ2Hw values indicate different geographical natal origins. The probability surface map shows that the spring generation probably emerged in central Europe (Benelux countries, Germany and parts of France).4. A negative correlation between the δ2Hw values and the migrants' capture year suggests that a warming climate may have driven the transgenerational migratory stages northwards during the last century.

Appropriate waste and resource management are essential for a sustainable circular economy with reduced environmental impact. With critical resources, e-waste may serve as indirect raw material. For example, with NdFeB permanent magnets, Neodymium (Nd) and the co-present Dysprosium (Dy) are critical rare earth elements (REEs). However, there exists no economically viable technology for recycling them from electronic waste (e-waste). Here, a method is presented based on cloud point extraction (CPE). The work involves basic complexation chemistry in a cloud medium with pure REE salts, as well as, with real NdFeB-magnets (nearly 28% REE content by weight) from an old hard disk drive (5.2 g magnet in a 375 g HDD). High extraction efficiency (>95%) was achieved for each REE targeted (Nd, Dy, Praseodymium (Pr)). With the magnet waste, the cloud phase did hardly contain any Nickel (Ni), Cobalt (Co), or Boron (B), but some Aluminium (Al) and Iron (Fe). Dynamic light scattering results indicated aggregation of ligand-surfactant micelles with the cloud phase. The preconcentrated products can be used for new Nd magnet manufacturing or further enriched using established transition metal removal techniques. Reuse of solvent, low chemical inventory demand, and using non-inflammable, non-volatile organic extractants promise safe large-scale operation, low process costs, and less environmental impact than using hydrometallurgical methods used with urban or primary mining. Journal of molecular liquids, 382 ISSN:0167-7322 ISSN:1873-3166

nonPeerReviewed

Information systems (IS) scholars have proposed guidelines for interpretive, mixed methods, and design science research in IS. Because many of these guidelines have also been suggested for evaluating what good or rigorous research is, they may be used as a checklist in the review process. In this paper, we raise the question: To what extent do research guidelines for interpretive, mixed methods, and design science research offer evidence that they can be used to evaluate the quality of research. We argue that scholars can use these guidelines to evaluate what good research is if there is compelling evidence that they lead to certain good research outcomes. We use three well-known sets of guidelines as examples and argue that they do not seem to offer evidence that we can use them to evaluate the quality of research. Instead, the “evidence” is often an authority argument, popularity, or examples demonstrating the applicability of the guidelines. If many research method principles we regard as authoritative in IS are largely based on speculation and opinion, we should take these guidelines less seriously in evaluating the quality of research. Our proposal does not render the guidelines useless. If the guidelines cannot offer cause-and-effect evidence for the usefulness of their principles, we propose viewing the guidelines as idealizations for pedagogical purposes, which means that reviewers cannot use these guidelines as checklists to evaluate what good research is. While our examples are from interpretive, mixed methods, and design science research, we urge the IS community to ponder the extent to which other research method guidelines offer evidence that they can be used to evaluate the quality of research.

COVID-19 rapidly and extensively changed the normal everyday practices of societies, and there is no going back to the past. Universities also had to adapt and re-establish their normal routines, from policies to practices. In this article, we explore university students’ experiences of web-based learning, their well-being, and engagement during the pandemic. As a theoretical framework, we use the concept of the university student engagement inventory (USEI), which includes behavioral, cognitive, and emotional dimensions. The data were collected during the COVID-19 pandemic from university students (N = 35) via an online survey and analyzed using a thematic content analysis. According to the results, university students experienced well-designed and pedagogically implemented web-based learning, teaching and guidance to enhance their own learning, well-being, and engagement in their studies. This suggests that web-based solutions for academic learning are justified but need to consider a range of well-being and engagement factors. What is still needed are innovative solutions that are pedagogically justifiable and consider the digital and human dimensions sustainably.

Hybrid aspens have long attracted scientific interest, but the research on their use as feedstocks for chemical applications are still very limited. The bark biomass of the poplar species contains many valuable extractives that can be utilized as value-added products. This paper examines the applicability of hybrid aspen (Populus tremula L. × P. tremuloides Michx.) bark extract as a precursor of rigid carbon foam and activated carbon. To explore this, the study considers 1) the basic chemical composition of the bark in terms of added value potential, 2) the basic chemical composition of the bark extract and the effect of its pretreatment on the extract composition, 3) the production of rigid carbon foam, and 4) the chemical activation of carbon foam with different impregnating agents. The study determines that the bark extract of the hybrid aspen can be used as a precursor for rigid carbon foam and further processed into an activated carbon product. Therefore, the bark extract of Populus tremula L. × P. tremuloides Michx. can be assessed as a potential value-added product that increases the use value of the hybrid aspen biomass. peerReviewed

Abstract The aim of the study was to explore the current forest industry's change features, necessary resources and management for the biorefining business in Scandinavia and North America. A total of 23 representatives from the forest, bioenergy and bioproducts sectors participated in themed interviews in the last round of a three-phase Delphi study. In both Scandinavian and North American forest industries, a conservative organizational culture and lack of financial resources create barriers to change. The role of the forest industry in the forest biorefinery consortium is largely seen to be that of a biomass provider. The scope of change depends on context-specific features, such as biorefinery location and raw material availability. Operating a commercial-scale biorefinery facility requires both new managerial and operational-level skills. Readiness for change needs to be embedded in the organizational culture — and the key to attaining this is open-minded organizational management. It is believed that there are innovative personnel in forest industry companies, yet the current culture does not encourage such people to submit their ideas. Success in the biorefinery business cannot be achieved without collaboration. However, sharing of profits among partners in the consortium will be challenging.