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AbstractThe sociocultural theory, the idea that we learn in interaction with others, has had an immense impact on the field of education. For the past 20 years, the theory has gained momentum within the field of online education and inspired a group of researchers at the University of Alberta (Garrison, Anderson & Archer 2000) to design a conceptual framework and an online learning model of th
A macroscopic constitutive model for the strain-induced martensite transformation observed in metastable austenitic stainless steels is presented. It models the material as an evolving two-phase austenite-martensite composite, where the plastic strains in each phase are computed using viscoplastic power-law relations. Two distinct hardening rules, one for austenite and the other for martensite, ar
Purpose: Young people transitioning from out-of-home care are a vulnerable group. This article reports two studies aiming to increase understanding of how to develop interventions for this group and focuses on preliminary intervention fit from the youth and social worker perspective. Methods: We conducted two small-scale studies. Social workers (Study I, n = 2; Study II, n = 9), and youth (Study I
This paper examines the case of Western Sahara through the lens of settler colonial studies. A former Spanish colony in northern Africa, Western Sahara is most often described as ‘occupied’ by Morocco since 1975. I aim at shifting this narrative by applying settler colonial theory, more specifically Veracini’s concept of transfer, to the relation between Moroccan authorities and the indigenous pop
Coherent extreme ultraviolet (XUV) radiation can be generated in a tabletop configuration via high-order harmonic generation (HHG) in gases. While HHG is inherently inefficient, increasing the conversion efficiency (CE) is crucial for many applications, such as coincidence spectroscopy [1] and coherent imaging [2], which require high XUV throughput. Previous calculations suggest that one way to im
This article is a collective response to the 2020 iteration of The Manifesto for Teaching Online. Originally published in 2011 as 20 simple but provocative statements, the aim was, and continues to be, to critically challenge the normalization of education as techno-corporate enterprise and the failure to properly account for digital methods in teaching in Higher Education. The 2020 Manifesto cont
Background and Objectives: The ease of hulling an oat genotype and the length of time the intact and hulled seeds can be stored viably without deteriorating quality has always been of interest to industry and farmers. We evaluated the hulling traits of different genotypes under varying growing conditions in 2018 and 2020, linking this to seed morphological and physiological features. Findings: We
Post-compression of (sub)-picosecond laser pulses down to sub-100 fs durations has become a standard approach for high-peak-power sources at a high average power [1]. Here, we propose a new post-compression geometry suited for extreme temporal compression of energetic narrowband lasers, such as diode or electrically pumped four-level systems which can deliver kW-average powers [2], but typically e
Capsaicinoids, the alkaloid molecules responsible for the pungency of chili peppers, have notable pharmacological effects. They are potent agonists of TRPV1 (vanilloid receptor 1), which is a key drug target for pain disorder treatments. Capsaicinoids can be extracted from chili peppers, but there are several drawbacks to this, among them the quantity variations and cost. This project investigates
The projected increase in older people within the African population, alongside rapid urbanisation, points to the growing importance of understanding how older people navigate towns and cities across the continent. This aligns with wider concerns that geographical scholarship needs to pay more sustained attention to ageing in Global South contexts. Rather than treating these developments as proble
Three different semiconductor nanowires are combined into a single optoelectronic artificial neuron. Our device provides a path towards low power computations with significantly reduced circuit footprint, thus addressing critical limitations in neuromorphic photonics. The false-coloured scanning electron micrograph shown in Figure 1a depicts the fabricated nanowire neuron. Two pin-doped InP nanowi
Studies have shown positive health outcomes from shared reading (SR) for various patient groups. In this article, we explore whether this applies to doctors as well by studying the dynamics of SR sessions and a subsequent participant focus group. Four SR sessions, with one short story and one or two poems each, were held with medical interns working at Skåne University Hospital, Sweden. A reflexivStudies have shown positive health outcomes from shared reading (SR) for various patient groups. In this article, we explore whether this applies to doctors as well by studying the dynamics of SR sessions and a subsequent participant focus group. Four SR sessions, with one short story and one or two poems each, were held with medical interns working at Skåne University Hospital, Sweden. A reflexiv
Intense ultrashort-pulsed laser systems based on Ti:sapphire chirped pulse amplifiers (CPA) operating at 800 nm have been a workhorse of ultrafast science for several decades. More recently, driven by the progress in laser technology, sources with central wavelengths further in the infrared have emerged as powerful tools, in particular to generate soft X-ray (SXR) radiation via high-harmonic gener
Photonics-based approaches to neuromorphic hardware offer advantages in speed and connectivity but often suffer from large device footprints.[1] Here, we present an ultra-compact artificial neuron built from semiconductor nanowires. A scanning electron micrograph of the nanowire device is presented in Figure 1a. Inside the dashed box, we show the neuron built from three III-V nanowires - two InP p
Exposure to stressors and associated hormones during development can significantly affect offspring phenotype, including social and philopatric behaviour, but these effects can be mediated by the postnatal social environment (‘social buffering’). While the effects of social buffering are well established for complex social behaviours—such as parental provisioning, grooming or cooperative care—the
Hot-wall metalorganic vapor phase epitaxy enables a superior quality of group-III nitride epitaxial layers and high electron mobility transistor structures, but has not yet been explored for N-polar growth. In this work, we aim at achieving N-polar AlN nucleation layers (NLs) with optimized properties for subsequent growth of GaN device heterostructures. The effects of substrate orientation on the
