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Hybrid capacitive deionization using MgAl-LDHs-coated graphite felt electrodes for phosphate removal
Full text linkCapacitive deionization (CDI) is a promising technology for selective phosphate removal, though its performance is often constrained by electrode materials. This study developed composite electrodes by integrating MgAl-layered double hydroxides (LDHs) onto conductive oxidized graphite felt (OGF) to improve charge storage and ion selectivity. Two types were tested: CLGF prepared with commercial nitrate-intercalated LDHs, and LLGF synthesized with chloride-intercalated LDHs. Phosphate removal performance was evaluated in synthetic mixed ion solutions as well as in real lake sediment dewatering reject water. The novelty of this work lies in both the electrode fabrication method and the integration of MgAl LDHs with oxidized graphite felt. This combination provides dual functionality with enhanced phosphate selectivity and improved charge storage for practical CDI based phosphorus recovery. Kinetic modeling identified chemisorption as the main mechanism, with both LDH-coated electrodes outperforming bare OGF in adsorption and capacitance. LLGF and CLGF showed maximum phosphate removal capacities of ∼60 mg/g, while pristine GF and OGF showed negligible ion adsorption capacity. CDI based steady state adsorption capacities stabilized at ∼10 mg/g over 5 cycles during phosphate removal from 1.0 mM mixed anions solution. Phosphate-to-sulphate selectivity coefficients were highly time dependent, reaching 2.0 (CLGF) and 4.3 (LLGF) under +1.0 V applied voltage. CLGF removed over 80% of phosphate in reject water at both +1.0 V and open circuit (OC), while LLGF achieved moderate phosphate removal of about 57% with better selectivity. Energy consumption for the CDI system ranged from 0.03 – 0.25 kWh/m3, within reported CDI benchmarks. Statistical analysis revealed that removal performance was significantly influenced by electrode-time and electrode-voltage interactions rather than individual factors. Overall, this study demonstrates MgAl-LDHs-OGF electrodes as a feasible electrode for lake water P removal with high selectivity towards phosphate over other competing anions
Ignoring by complying:How public officials handle hybridity to pursue the goals of new public governance
No full textThe article draws on insights from the literature on street-level bureaucracy to analyze how public officials experience and deal with challenges arising from hybrid governance. Empirically, we focus on managerial staff and front-line workers employed in Danish employment service delivery organizations, respectively. We develop the term “ignoring by complying” to describe how informants pursue ideals associated with new public governance (NPG) in settings dominated by more than one governance logic. They comply with the minimum standards associated with the logics of public administration (PA) and new public management (NPM) in order to ignore such logics most of the time. The article thereby contributes to the growing bodies of literature on cross-pressures in public bureaucracies, particularly by putting recent street-level bureaucracy research in touch with literature on hybrid governance.</p
Wienand, J., Börm, H. & Lange, C.H. (eds.) Ancient Cultures of Civil War: Polarisation, Conflict, and Reconciliation
No full textDiscipline through timetables: Biopolitics in preschools
No full textThis chapter explores institutional temporal regulation in Danish preschools through an analysis based on Foucault’s concepts of discipline and biopolitics. It combines comprehensive data from observations with document analysis of policies such as the Act on Day Care and the Ghetto Law package. The chapter begins with an analysis of a constructed timetable, using this as a starting point to demonstrate how clock-time governance primarily directs daily routines. It illustrates how this governance shapes an awareness of punctuality and discipline in both children and educators—qualities central to a capitalist framework of citizenship. Additionally, the chapter examines how pedagogical practices are shaped by institutional temporal regulation, embedding biopolitical aims such as punctuality, children’s readiness for elementary school, and addressing social inequality within preschool practices. In this way, the chapter offers a critical perspective on the everyday normalization of temporal practices in preschools
Manage your Emotions!:Encouraging Parents to Engage in Introspective Analysis and Help-Seeking
No full textIn the Danish context, a new risk-preventive parent-child policy agenda has recently paved the way for new intimate support interventions that focus on parents' mentalisation capabilities, attachment patterns and their control over emotions. In this article, based on fieldwork and interviews, we show that the policy agenda has been significantly embedded and complied with in the approaches and tone adopted by visiting children’s nurses acting as frontline workers in the Danish welfare state, but also expanded beyond its initial intention and reconfigured in various ways. The article discusses the possible implications of targeting alleged emotional (dis)orientation in parents and defining emotional self-control as a central characteristic of what constitutes ‘good’ parenting. Ultimately, we argue that the current therapeutic self-help approach to parenting education in the Danish welfare state not only constitutes a psychologising of parenting; it also represents a pathologisation of everyday life in ways where more parents than before are positioned as 'troubled'
Celebrating (the End) of the First Punic War: The Watery Element, in Sara Borrello, Valeria Dieci, Laura Fontana (eds.), CEREMONIES OVER THE ROMAN REPUBLIC: EXPLORING THE INTERPLAY BETWEEN PUBLIC AND PRIVATE (509-27 BCE)
No full textThis paper focuses specifically, but not exclusively, on two aspects of the First Punic War, namely the appearance of the naval triumph and the closing of the Temple of Janus. Both celebrations were associated with the end of the war, but one as a traditional celebration of victory, the other as what appears to be an index of war AND peace. What are the implications, the interaction of the two celebrations and their exact meaning? What do the celebrations ultimately tell us about Rome and its relationship with the sea and the people involved in naval victories? Is it possible to shed more light on whether the closing of the Temple of Janus took place in 241 BCE (A. Manlius, cos.) or 235 BCE (T. Manlius Torquatus, cos.) as mentioned by Varro (LL 5.165), and what role did Gaius Duilius and his celebrations and/or honours play in this development
Underwater Uncertainty:A Multi-annotator Image Dataset for Benthic Habitat Classification
Full text linkContinuous inspection and mapping of the seabed allows for monitoring the impact of anthropogenic activities on benthic ecosystems. Compared to traditional manual assessment methods which are impractical at scale, computer vision holds great potential for widespread and long-term monitoring. We deploy an underwater remotely operated vehicle (ROV) in Jammer Bay, a heavily fished area in the Greater North Sea, and capture videos of the seabed for habitat classification. The collected JAMBO dataset is inherently ambiguous: water in the bay is typically turbid which degrades visibility and makes habitats more difficult to identify. To capture the uncertainties involved in manual visual inspection, we employ multiple annotators to classify the same set of images and analyze time spent per annotation, the extent to which annotators agree, and more. We then evaluate the potential of vision foundation models (DINO, OpenCLIP, BioCLIP) for automating image-based benthic habitat classification. We find that despite ambiguity in the dataset, a well chosen pre-trained feature extractor with linear probing can match the performance of manual annotators when evaluated in known locations. However, generalization across time and place is an important challenge
Education and the politics of time: Temporal governance in teaching and learning
No full textThis book project delves into the nuanced ways in which the governance of and through time shapes educational practices across the education sector. By addressing this critical issue, the book aims to illuminate both similar and varying patterns of time governance in different contexts and educational settings.The book will consist of 17 chapters on educational governance and learning globally. Each chapter can be read as an individual exploration, taking a critical approach to examining "time governance." These chapters will demonstrate how practices within educational institutions reflect the types of individuals these institutions aim to educate. By exploring various educational contexts, the book will provide readers with a deep understanding of the implications and outcomes of temporal governance in education.Ultimately, the book project addresses how governance through time influences educational practices in different regions and settings. With its diverse approaches and international perspectives, it offers unique insights into the use of time as a tool of governance and the formation of individual identities in educational institutions.We believe that when published in 2025, this book will be an essential read for educators, policymakers, and researchers interested in the intersection of time and education. By highlighting the complex dynamics of temporal governance, it offers valuable insights into the broader implications of how time structures educational processes and practices within institutions.Education and the politics of time: temporal governance in teaching and learning explores how time—its organization, regulation, and lived experience—structures education across diverse contexts.Organized into four thematic sections, the book’s 17 chapters offer critical analyses and vivid empirical accounts that expose the politics of time in education. The first section, the national and transnational politics of time, shows how reforms and policy agendas impose particular temporal logics on education systems. The second, the politics of institutional time, investigates how preschools, schools, and universities govern everyday life through calendars, timetables, and institutional rhythms. The third, the politics of teachers’ time, examines how temporal pressures shape professional work, identity, and wellbeing. The fourth, the politics of students’ time, traces how temporal expectations regulate students’ learning trajectories, aspirations, and everyday experiences.Taken together, these chapters reveal how the politics of time shape educational practices in contested ways and toward different ends. With contributions from scholars based in Denmark, Sweden, Finland, Australia, Kenya, Chile, and the USA, the volume situates local cases within wider global dynamics.Rather than treating time as neutral, the book insists on its political character, showing how temporal norms structure identities, possibilities, and inequalities—and how they might be reimagined
The Social Zipper:Redefining the Role of Streets in Disadvantaged Housing Estates
Full text linkDanish postwar non‐profit housing estates reflect the rise of the welfare state by providing quality housing for all, regardless of income. Typically built on the outskirts of cities, these estates were shaped by modernist ideals of traffic separation and functional zoning. Today, several states face criticism for their physical and social fragmentation. In response, the Danish government introduced the Parallel Society Act in 2018, mandating mixed forms of ownership in selected estates to promote greater social and functional diversity. The Parallel Society Act has led to extensive physical changes, including the creation of new internal streets designed to reduce isolation, increase “eyes on the street,” invite visitors, and foster social interaction. These interventions represent a new planning paradigm, in which streets are reframed as “social zippers.” This article explores how such transformations are envisioned and experienced in two Danish estates: Gadehavegaard and Gellerupparken. Drawing on methodological approaches inspired by architectural anthropology and based on an ongoing long‐term study conducted by an interdisciplinary team since 2019, we examine how the role of streets as “social zippers” shapes perceptions of connectivity, safety, child‐friendliness, and livability among residents and visitors. Findings reveal ambiguous outcomes: While streets are intended to connect people and spaces, residents often perceive them as intrusions into established social structures and spatial routines. This raises critical questions about whom such interventions are designed to serve and whose everyday lives they aim to reshape. The study underscores the need for participatory, context‐sensitive approaches to avoid reproducing the fragmentation these policies seek to addres