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Who Pays for Preparedness? Valuing Disaster App Features Through a Factorial Survey Experiment in Flood-Prone Communities
No full textThis study evaluates public preferences for next-generation disaster preparedness apps using a factorial survey experiment in flood-prone Japanese communities. The analysis first reveals a fundamental heterogeneity in public receptiveness, identifying two distinct segments: a small receptive minority (approx. 20 %) willing to consider adoption, and a large unreceptive majority (approx. 80 %) that rejects the app regardless of its features or price. Consequently, focusing on the receptive segment, the study estimates the economic value of specific app features. Results show that functions for immediate personal safety and family security—such as Rescue Request and Family Status Confirmation—are most highly prized. These findings lead to the conclusion that a freemium model is the most viable strategy for social implementation, offering a free version with basic features to the unreceptive majority while providing a premium, feature-rich version to the receptive minority at a sustainable price point. This dual approach can maximize public reach while ensuring financial viability
The Multidimensional Online Civic Engagement for Youth (MOCE-Y) Scale: Development and Validation
No full textOnline civic engagement among young people may represent a form of positive youthdevelopment in digital spaces. However, its impacts on youth’s well-being remain unclear,partly due to a lack of validated measures that capture the unique features of the internetand incorporate youth voices. To address this gap, we developed and validated a scale ofmultidimensional online civic engagement for youth aged 15 to 25 years (MOCE-Y) using anexploratory sequential mixed-methods approach. Qualitative interviews with 12 youth sup-ported the multidimensional structure derived from literature, from which we developed aninitial 40-item scale. Exploratory (N ¼ 159) and confirmatory (N ¼ 244) factor analyses withtwo independent samples further validated the multidimensionality of the scale, consistingof civic behaviors and skills. The final 26-item scale demonstrated discriminant, criterion,and incremental validity as well as internal consistency. MOCE-Y lays the groundwork forfuture research on youth civic engagement online
Research Progress on Generating Perfect Vortex Beams Based on Metasurfaces
No full textThis article reviews the latest advances in the generation and control of perfect vector beams using metasurfaces. In recent years, metasurfaces have garnered increasing interest due to their simple fabrication and easy integration. Perfect vortex beams (PVBs), as a type of vector beams, exhibit complex polarization states that require the superposition of multiple phases for their generation. The use of metasurfaces provides a compact platform for the generation of perfect vortex beams and enables more complex vortex beam control tasks, which are quite challenging for traditional optics. This paper begins by introducing the principle of perfect vortex beam generation using metasurfaces, followed by a discussion on the generation of complex perfect vortex beams, including multi-channel and grafted perfect vortex beams. Subsequently, it explores the applications of perfect vortex beams in particle trapping and optical communication. Finally, the paper summarizes the key findings, highlights the limitations of metasurfaces in perfect vortex beam applications, and provides insights into potential future research directions and applications
Discussion on Housing and Goal 10: Al Johnson
No full textAl Johnson was interviewed on March 24, 2025, by Sy Adler and Andrée Tremoulet.
The content of this interview is audio only with machine-generated captions.
In March of 2025, Portland State University Professor Emeritus Sy Adler and former Adjunct Associate Professor Andrée Tremoulet conducted three audio interviews with leaders instrumental in the formation and implementation of Goal 10 housing policies to capture their views regarding legislative changes, and how they might affect the availability of housing for all Oregonians.https://pdxscholar.library.pdx.edu/planoregon_interviews/1079/thumbnail.jp
A Laboratory-Based Spectrometer Intercomparison for the Measurement of Snow Spectra
No full textSeasonal snow is an integral component of global hydrological systems, global energy budget and Earth\u27s climate. As an important part of many Earth systems, seasonal snow is also an essential source of water for many human populations and ecosystems around the world. As such, the measurement of seasonal snow and characterization of uncertainty in those measurements is crucial. To elucidate potential uncertainty attributable to commonly used field spectrometers (and to a lesser extent imaging spectrometers) and associated reference panels, this work presents results from an intercalibration experiment conducted synchronously with the NASA 2023 Snow Experiment (SnowEx) Albedo campaign near Fairbanks, Alaska USA. Three sets of experiments were carried out under controlled laboratory conditions to characterize the radiometric and spectral wavelength consistency of the instruments as well as the white reference panels used to calculate reflectance from field measurements. Although there was generally good agreement between the instruments, panels, and the references, there were also some notable differences. One instrument showed an average − 74 % change from the reference for radiance, and multiple instruments exceeded the suggested 0.5 nm threshold for spectral wavelength scale. The Discussion section highlights how some of these findings and their implications could improve future field campaigns and general use/maintenance of these high-precision scientific instruments
Platforms for the Development and Sustainability of Practice Research in Social Work: an International Cross-Case Analysis
No full textPurpose:
This paper presents an institutional and organizational comparative case analysis of practice research platforms in social work, which are institutionally embedded partnerships of university-based research centers, organizations delivering social services and healthcare, and other knowledge intermediaries that connect social work practice and research.
Methods:
An institutional and organizational comparative case analysis is presented concerning four practice research platforms from the USA, Finland, Australia, and Singapore.
Results:
We identify similarities and differences in the platforms’ purpose and basic goals, administration and financing, and substantive and methodological foci in the development of social work practice research studies.
Discussion:
We conclude by identifying ways for practice research platforms, and thus social work practice research projects, to be sustained amidst future challenges. We also note ongoing needs for institutional support for practice research, involving co-leadership (involving academics, university and agency administrators and practitioners, and service users and advocates) and stable, diversified funding
Black Futures Farm: Growing Cooperative Resistance
No full textMirabai Collins and Malcolm Hoover, co-founders of Black Futures Farm, discuss Black cooperative farming and Black placemaking as acts of resistance.
Their conversation took place on February 20, 2026, at Portland State University\u27s Pan African Commons, and was recorded on Zoom.
Black Futures Farm is a community-building and production farm with a mission of healing the connection between Black people and the land. The farm is located in southeast Portland on 1.15 acres in the Learning Gardens Laboratory and produces fruit, vegetables, culinary and medicinal herbs, and flowers.
Black Futures Farm is a program of the Black Food Sovereignty Coalition.https://pdxscholar.library.pdx.edu/black_bag_series/1028/thumbnail.jp
Nonenzymatic Glucose Biosensor Based on Selective Reduction of Silver Ions
No full textA nonenzymatic conductivity-based glucose biosensor, reported here, designed for potential noninvasive measurement in accessible biofluids such as saliva, sweat, and tears. The sensor exploits a classic Tollens’ silvering process that deposits metallic silver on a sensitized surface via a quantitative, selective reduction of silver ions by glucose. Of the two surface sensitization methods used, the self-assembled bifunctional thiol/silane surfactant yields a more stable and sensitive sensor than tin(II) chloride. The conductometric sensor consists of two spiral interdigitated silver electrodes fabricated by lithography and wet etching. The sensor impedance changes after selective metallic silver deposition between the electrodes. The sensor exhibits a sigmoidal response in a wide range of glucose concentrations from 200 mg/dL to less than 0.2 mg/dL and an ultralow limit of detection (ULOD) of 0.3 × 10–5 mg/dL. The ULOD is attributed to the percolation network morphology of the deposited silver, connecting two electrodes (fractal dimension D = 1.5) that function like parallel nanoresistors. The log–log plot of conductivity vs glucose concentration yields a conductivity exponent that increases from 1 to 2, predicted for a 2D to 3D percolation transition in going from ultralow to high glucose concentration
What Matters to Residential Long-Term Care Residents: Contextualizing Perceptions of Person-Centered Care
No full textThis study combines the CRITIC and DEMATEL methods and introduces a new hybrid scenario analysis approach that identifies cross-scenario strategies. We use Taiwan\u27s wind energy industry as a case study to validate the process. Although scenario analysis has been applied across various fields and organization types—including strategic planning, education, training, and recent environmental issues—scholars have highlighted problems such as the subjectivity of qualitative analysis and the lack of quantitative evidence. To address this, this study integrates scenario analysis with quantitative multi-criteria decision analysis to support decision makers in conducting scenario evaluations. We achieve this by applying a multi-criteria approach to analyze the weights of uncertainty axes and causal relationships, leading to management prioritization that yields near-optimal decision analysis and enhances decision quality. Our methodology is validated with a case study in Taiwan\u27s wind energy sector. In the best-case scenario, Taiwan\u27s green energy substitution rate surpasses 20 %, simultaneously fostering new industrial chains in green manufacturing, energy storage, and carbon management. Conversely, under a pessimistic scenario, challenges such as land acquisition issues, tense international relations, grid delays, or regulatory uncertainties could limit renewable energy penetration to below 20 %
Introducing visual Bibliographies As a Novel Tool for Communicating Complexity: a Knowledge Translation Case Study from Aboriginal and Torres Strait Islander Primary Health Care Research
No full textBackground
Effective knowledge translation ensures health care research has desired impacts – this is particularly important for Indigenous communities who have historically not benefited from research about and on them. Yet much knowledge translation in Indigenous contexts continues without community partnerships and disregards Indigenous values, languages and knowledge-sharing practices. Visual approaches can be engaging knowledge translation strategies that align with Indigenous knowledge translation traditions and amplify Indigenous perspectives. In this paper, we introduce a new tool we have coined a “Visual Bibliography” for knowledge generation and translation, developed within a large-scale, participatory research collaboration in Aboriginal and Torres Strait Islander health services. Methods
This case study explores the collaborative invention and development of the Visual Bibliography. Through a participatory process with Aboriginal and Torres Strait Islander and non-Indigenous members of the research collaboration, we synthesized and analyzed 92 research outputs – e.g., academic publications, reports, policy briefs – published by our collaboration focused on quality improvement in Aboriginal and Torres Straits Islander primary health care. Findings informed conceptual metaphors, infographics and other imagery that we combined into a single document that serves as a reference to all research outputs and communicates the values and history underpinning our collaboration. Results
Analysis and artistic experimentation with deep consideration of representation were combined to create the Visual Bibliography. Our process carefully balanced scientific accuracy with engaging depictions to convey complex, intersecting ideas which both communicate knowledge and generate new insights into health services research. The process itself fostered integrative knowledge translation and enabled participants to locate their contributions within a broader system of knowledge production. Conclusion
We believe the Visual Bibliography has broad potential within and beyond Indigenous knowledge translation contexts. It provides a tool for participatory co-creation, especially as part of an overarching embedded program of knowledge translation that can be responsive to Indigenous (and non-Indigenous) communities’ preferences for knowledge mobilization. By communicating complexity meaningfully and engagingly, it helps address a significant gap in knowledge translation