Results 181 to 190 of about 261,499 (294)

Teacher agency in curriculum and pedagogical development: Reflections from a design research project about self‐regulated learning in secondary schools

open access: yesThe Curriculum Journal, EarlyView.
Abstract Transnational guidelines on skills and competencies for lifelong learning, along with curriculum reforms to promote curriculum flexibility and autonomy in schools, are pressing teachers to be engaged in curriculum and pedagogical innovation focused on student‐centred approaches favourable to developing learner autonomy.
Thiago Freires   +3 more
wiley   +1 more source

Mechanisms of near‐normal sea water dolomitisation: Mesohaline‐reflux or syn‐depositional?

open access: yesThe Depositional Record, EarlyView.
This study investigates the dolomitisation of the Eocene Dammam Formation on the Arabian Plate using petrographic, mineralogical, geochemical and isotopic analyses. The findings reveal two distinct dolomite types, formed primarily through normal‐to‐mesohaline sea water dolomitisation, challenging previous models such as sabkha‐meteoric mixing.
Misbahu Abdullahi   +3 more
wiley   +1 more source

Experimental study on burning rate and flame geometry in construction tunnel fires under high geothermal conditions

open access: yesDeep Underground Science and Engineering, EarlyView.
Abstract As tunnel construction advances in lengths and depths, the construction of tunnels in high geothermal environments has become increasingly common, raising significant fire risks. In this study, a 1:20 scale model tunnel test platform was constructed to investigate the effects of a high geothermal environment on fire behavior in tunnels during ...
Xiaoxian Fei   +6 more
wiley   +1 more source

Dynamic tensile strength and fracture evolution of characteristic shale with bedding and hole using linear regression theory

open access: yesDeep Underground Science and Engineering, EarlyView.
The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai   +7 more
wiley   +1 more source

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