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Robust Measurement of the Concurrence of Vector Light Beams
No full textCoherent vector light beams with spatially structured polarization exhibit intrinsic nonseparability between the spatial amplitude and polarization-state degrees of freedom, quantified by optical concurrence—a measure formally analogous to quantum concurrence characterizing entanglement in bipartite quantum systems. Here, we introduce a method to measure the optical concurrence of monochromatic vector beams by encoding the nonseparability into the coherence properties of a partially coherent light field. This enables the concurrence to be retrieved from either a single-shot speckle pattern or a single-pixel temporal intensity measurement. Our technique is efficient and alignment-free, eliminating the need for polarization-resolving components and opening new possibilities in optical communication, sensing, and classical analogs of quantum information protocols
Earnings management in local government healthcare reporting: Financial distress vs. peer influence?
No full textThis paper examines if financial distress and/or peer influence predict local governments' earnings management in the context of municipal healthcare expense reporting in Finland. Our statistical analyses use data hand-collected from all Finnish municipalities between 2016 and 2021. We document peer influence on earnings management by understating healthcare expenses in the public sector: Our results show that a municipality's decision to manage earnings upwards is positively associated with the healthcare district's central municipality's choice to understate its expenses. However, we do not find support for financial distress predicting earnings management. In our setting, peer influence appears to be a stronger motivation for financial reporting choice than municipality-specific characteristics
Evaluating Student Learning Outcomes in an Industrial Robotics Summer School: A Case Study
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Piloting an interactive horizon scanning of the forest bioeconomy in Finland: Collected signals of change and participants' experiences
No full textData from: Mauno, T., Pelli, P., Bengston, D.N., Pykäläinen, J. & Hujala, T. 2025. Interactive Horizon Scanning of the Forest Bioeconomy with a Nested Business Environment Framework. Futures & Foresight Science. https://doi.org/10.1002/ffo2.70015 This study piloted interactive horizon scanning to test how future signals information can be collected and processed in collaboration with forest bioeconomy stakeholders. In interaction with a diverse group of Finnish forest bioeconomy stakeholders (n=10), this exploratory, one-time horizon scanning exercise collected and interpreted signals of change that may have an impact on the forest bioeconomy. This horizon scanning campaign followed the typical steps of the scanning process: The process first included pre-scanning (with a research group consisting of 7 researchers), recruiting and training a team of scanners, followed by scanning and collecting signals of change online. An onsite signal interpretation workshop was then held, followed by a follow-up survey on participation and the analysis of the collected data. Padlet (Padlet.com) was used as the database for this horizon scanning exercise. The online horizon scanning of this study lasted nine weeks from January 2024 to March 2024 (Jan 8, 2024 – Mar 13, 2024). During that time, participants had the opportunity to save their own scanning hits and comment on and like each other's posts. During nine weeks, a total of 10 horizon scanners participated in Padlet's activities: 42 scanning hits were saved, 29 comments were identified, and 47 likes (reactions) were given to the scanning hits. After the online horizon scanning, an onsite signal interpretation workshop was organized for participants, which was followed by a follow-up survey on participation. This dataset includes: (i) Collected signals of change (including pre-scanning data) (ii) anonymized expertise matrix (participating stakeholders), and (iii) anonymized follow-up survey data (participants' experiences of the pilot interactive horizon scan). Analyzed data from the workshop are available from the article’s supplementary material. For more information, please contact the corresponding author (data controller): Tuomas Mauno (University of Eastern Finland), [email protected]
Representations of Finnishness in the Instagram Advertising of Moomin Day Mugs and Seasonal Mugs from 2019 to 2024
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Social workers' experiences of their role and the impact of their work in specialist adult psychiatric care
No full textCarbene–Metal–Amide Materials Design: Tailoring π‐Extended Amides for High‐Performance Organic Light‐Emitting Diodes
No full textA series of gold-centred carbene-metal-amide (CMA) complexes are prepared with a rigid benzofuroindole (BFI) and benzothioindole (BTI) amide donor ligands coordinated with bicyclic(alkyl)amino carbene (BiC)Au(I)-moiety in high yields. CMA complexes emit in the sky-blue range at 501 and 511 nm with unity quantum yields in amorphous solid state media. Both CMA complexes emit thermally activated delayed fluorescence (TADF) originating from a charge transfer (CT) state with an excited state lifetime as short as 473 ns, resulting in fast radiative rates of 2 × 106 s−1. The impact on the photoluminescence properties of the electron-donating oxygen and sulfur atoms in amide-donor ligand has been interpreted with the help of steady-state and transient photo and electroluminescence experiments. Theoretical investigations revealed two charge-transfer (T1 and T2) states followed by a locally excited T3 triplet state, and their spin–orbit coupling analysis. Sky-blue host-guest and host-free organic light-emitting diode (OLED) devices are fabricated with electroluminescence at ≈490 nm and practical external quantum efficiencies up to 23% with colour coordinates CIE (x; y) = 0.19; 0.32. The superior performance and operating stability of the neat OLEDs are correlated with the presence of the heavier sulfur atom, suggesting further molecular design modifications toward stable CMA OLED devices with a simplified architecture of the emitting layer (host-free OLED)
