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Higher frequency and duration of droughts demonstrated by the critical threshold of soil moisture in China drylands

Quantifying the spatial and temporal patterns of drought characteristics is crucial, given the increasing frequency and intensity of drought events over the past 20 years in China. However, the patterns of drought frequency and duration in different regions and their differences remain unclear. Traditional indices for detecting and quantifying droughts, such as the Standardized Precipitation Evapo

Salinity gradient power from synthetic river water, brackish water, seawater and brine by reverse electrodeionization

The power extracted by reverse electrodialysis (RED) is often limited by the high resistance of low concentration compartment. This work aims to address this issue by demonstrating a reverse electrodeionization (REDI) design that can facilitate the ion transport and alleviate so called spacer shadow effects. In total, three different stack designs were assembled by substituting the conventional sp

Adaptive Control of Positive Systems with Application to Learning SSP

An adaptive controller is proposed and analyzed for the class of infinite-horizon optimal control problems in positive linear systems presented in (Ohlin et al., 2024b). This controller is derived from the solution of a “data-driven algebraic equation” constructed using the model-free Bellman equation from Q-learning. The equation is driven by data correlation matrices that do not scale with the n

A new approach to relay-based autotuning PID controllers and their evaluation in pH control of industrial photobioreactors

This paper presents a novel adaptive autotuning strategy for controlling the pH in microalgae raceway reactors, a critical variable in optimizing biomass productivity under dynamic environmental conditions. The method expands on existing relay-based autotuning principles, tailored to suit the seasonally variable dynamics of microalgae cultivation systems influenced by CO2 injection and photosynthe

Transdisciplinary urban research : a bibliography of key literature

The report presents a bibliography of academic literature on transdisciplinary urban research. It includes journal articles, book chapters, and reports that engage with a wide range of theories, methods, evaluation techniques, and experiences of academic and non-academic stakeholders who conduct collaborative research on or related to cities.

Restricted Hausdorff spectra of q-adic automorphisms

Firstly, we completely determine the self-similar Hausdorff spectrum of the group of q-adic automorphisms where q is a prime power, answering a question of Grigorchuk. Indeed, we take a further step and completely determine its Hausdorff spectra restricted to the most important subclasses of self-similar groups, providing examples differing drastically from the previously known ones in the literat

Transdisciplinary urban research : insights and experiences

The aim of this report is to provide insights on the expertise, knowledge, and experiences of conducting transdisciplinary urban research. To gather insights, we developed a set of questions based on a review of transdisciplinary research publications from 2010 to 2023 in the disciplines of Architecture, Planning, Geography, Urban Studies, and Sustainability Science. We used these questions as a g

Transdisciplinary urban research : strategies and tactics

This report summarises the insights we developed by conducting a literature review of the dominant approaches and experiences of transdisciplinary urban research. We conducted a World Wide Web search to identify key academic and non-academic publications between 2010 and 2023 in the disciplines of Architecture, Planning, Geography, Urban Studies, and Sustainability Science. We focused on those con

Transdisciplinary urban research : visualisation tools

This report provides a summary of 11 visualisations that have been developed by scholars who are engaged in transdisciplinary urban research. We identified the visualisations through a review of academic literature in the disciplines of Architecture, Planning, Geography, Urban Studies, and Sustainability Science between 2010 to 2023. Some of the visualisations are original while others are derived

Client-based teaching : concepts and approaches

Client-Based Teaching provides multiple opportunities for students and teachers in the built environment disciplines (Architecture, Urban Design, Landscape Architecture, and Planning) to engage with real world problems in the classroom setting. It also offers new ideas and approaches to non-academic partners who are working to improve the urban realm. This document provides a short introduction to

Client-based teaching : engaged universities in Sweden

Universities around the world are increasingly engaging with a range of stakeholders to co-produce knowledge by making explicit connections between student learning and real-world issues. These connections can enhance the education process while creating new opportunities for knowledge co- creation and active engagement between academic and non-academic actors. This report provides a summary of th

Association Between Prescribed Dosage of Resistance Exercise and Change in Pain and Physical Function in Knee Osteoarthritis : A Systematic Review With Meta-Regression

Objective: To assess whether there is an association between total prescribed dosage of resistance exercise (volume, frequency, intensity, and duration) and change in pain and physical function in individuals with knee osteoarthritis (OA). Method: A systematic review with meta-regression was conducted, searching MEDLINE, Embase, and the Cochrane Central Register of Controlled Trials until December

A validation protocol for 177Lu-SPECT image quantification as a basis for multi-centre kidney dosimetry

Objective. Multicentre studies in molecular radiotherapy face challenges in ensuring the comparability of dosimetry results. The aim of this study was to develop a validation protocol to achieve equivalent 177Lu-SPECT quantification across centres, consisting of a test exercise in combination with an action level. Approach. 177Lu-SPECT/CT imaging of 3D-printed kidney phantoms with non-uniform acti

Dataset of NIR, MIR, FIR and NMR spectroscopy and GC-MS of real samples of e-liquids from Malaysia

This dataset presents comprehensive spectroscopic and chromatographic profiling of 27 e-liquid samples including commercial formulations, a booster, and a nicotine solution (the e-liquids were collected in Ampang Jaya, Malaysia before April 2023). Fourier-transform infrared (FTIR) spectroscopy was performed across the near-, mid-, and far-infrared ranges (6000–80 cm−1), generating unique transmitt

Nonsteroid Anti-Inflammatory Drug Use in Female Elite Ice Hockey Players With and Without Previous Concussions and Musculoskeletal Injuries

Ice hockey is a high-intensity sport with high rates of concussions and musculoskeletal injuries. To manage pain, players may (over) use nonsteroid anti-inflammatory drugs (NSAIDs) which can have adverse health effects. In 2022, the Swedish Women's Elite League (SDHL) became the first women's league to introduce body checking, potentially increasing injury risks and NSAID use. This study examines

Phylogenomics reveals the slow-burning fuse of diatom evolution

Evolution is often uneven in its pace and outcomes, with long periods of stasis interrupted by abrupt increases in morphological and ecological disparity. With thousands of gene histories, phylogenomics can uncover the genomic signatures of these broad macroevolutionary trends. Diatoms are a species-rich lineage of microeukaryotes that contribute greatly to the global cycling of carbon, oxygen, an

Antiferromagnetic Covariance Structure of Coulomb Chain

We consider a system of particles lined up on a finite interval in a 3-dimensional space with Coulomb interactions between the nearest and next to the nearest neighbours. This model was introduced by Malyshev (Probl Inf Transm 51(1):31–36, 2015) to study the flow of charged particles. The distribution of spacings between the consecutive particles is of interest. Notably, even the nearest-neighbour

Binarity at LOw Metallicity (BLOeM) Multiplicity of early B-type supergiants in the Small Magellanic Cloud

Context. The blue supergiant (BSG) domain contains a large variety of stars whose past and future evolutionary paths are still highly uncertain. Since binary interaction plays a crucial role in the fate of massive stars, investigating the multiplicity among BSGs helps shed light on the fate of such objects. Aims. We aim to estimate the binary fraction of a large sample of BSGs in the Small Magella