Results 181 to 190 of about 5,334,901 (275)

A 40.68‐MHz Active Rectifier Using PLL and PWM Control of DC‐DC Converter for ON/OFF Delay Compensation

open access: yesInternational Journal of Circuit Theory and Applications, EarlyView.
A ramp‐based phase‐locked loop (RPLL) active rectifier operating at 40.68 MHz compensates switching delay variations to improve phase alignment. The proposed architecture achieves 90.3% peak power conversion efficiency and 98.0% voltage conversion ratio for high‐frequency wireless power transfer in implantable medical devices.
Woorim Lee   +5 more
wiley   +1 more source

Educating agents of change: Investigating curricula to foster sustainability competencies in university

open access: yesThe Curriculum Journal, EarlyView.
Abstract This study critically evaluates the implementation of sustainability competencies in the university‐wide curriculum reform at a Nordic research‐intensive multidisciplinary university. The focus is on assessing how sustainability competencies—especially the newly introduced systems thinking, strategic thinking and futures thinking—are ...
I. Södervik   +4 more
wiley   +1 more source

Perceived importance and didactic difficulty of chemistry education: Insights from Czech teachers

open access: yesThe Curriculum Journal, EarlyView.
Abstract This empirical study examines how chemistry teachers in lower and upper secondary schools in the Czech Republic evaluate the content of the chemistry curriculum, focussing on its perceived importance and didactic difficulty. Based on a quantitative survey (N = 146), the study provides insight into the pedagogical content knowledge of ...
Jitka Lorenzová   +6 more
wiley   +1 more source

Thresholds: The metaphorical foundations of powerful knowledge

open access: yesThe Curriculum Journal, EarlyView.
Abstract This paper advances a theoretical account of threshold concepts as metaphorical‐relational structures that reorganise meaning across contexts. Building on conceptual metaphor theory, we propose that threshold concepts can be understood as sites of schema‐level reorganisation: deep, embodied patterns of relational logic that scaffold abstract ...
Maria Karrol   +1 more
wiley   +1 more source

Evaluation of interprofessional collaboration in a teaching session in patient partnership in pharmacy education

open access: yesThe Curriculum Journal, EarlyView.
Abstract Patient partnership in health education promotes collaborative and humanistic care. In pharmacy education, however, this approach remains uncommon. We aimed to co‐construct and assess a teaching session on pain management and dispensing refusal, involving patients as full partners. A participatory approach was used.
Marc‐Antoine Luc   +2 more
wiley   +1 more source

Characterization of CD123 expression by mast cells in systemic mastocytosis with multicolor flow cytometry

open access: yesCytometry Part B: Clinical Cytometry, EarlyView.
Abstract Systemic mastocytosis (SM) is a clonal mast cell (MC) disorder characterized by aberrant immunophenotypes, including expression of CD25, CD2, and occasionally CD30. CD123, the α‐subunit of the interleukin‐3 receptor, is a therapeutic target in hematologic malignancies and has been reported to be expressed on neoplastic MCs by ...
Ryan C. Shean   +2 more
wiley   +1 more source

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