Results 151 to 160 of about 15,304,650 (294)

Rolling out large scale assessment in a training environment

open access: yes, 2012
This paper gives an account of a successful roll-out of a high stakes assessment. Although the target user group size wasn't significant at 10,000 users, the main challenge of the roll out was that it would be managed and delivered by a large number of ...
Steedman, Linda
core  

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

Towards automatic generation of e-assessment using semantic web technologies

open access: yes, 2011
Semantic web technologies have been increasingly used as a tool for generating, organizing and personalizing e-learning content, including e-assessment.
Tosic, Milorad, Cubric, Marija
core  

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Towards a blob-based presence verification system in summative e-assessments

open access: yes, 2011
Traditionally, authentication systems are required to verify a claimed identity one time only at the initial login. However, in high-stake environments such as a summative e-assessment environment, a one-time authentication session is insufficient to ...
Apampa, Kikelomo Maria   +2 more
core  

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