Results 21 to 30 of about 189,519 (302)

On the Distinctive Hardness, Anti-Corrosion Properties and Mechanisms of Flame-Deposited Carbon Coating with a Hierarchical Structure in Contrast to a Graphene Layer via Chemical Vapor Deposition

open access: yesNanomaterials, 2022
Two carbonaceous (amorphous carbon and graphene) coatings were catalytically grown on bulk Ni plates. It was found that the flame-deposited carbon (FDC) layers exhibited a unique hierarchical structure with the formation of FDC/Ni nano-interlocking ...
Wei Meng   +4 more
doaj   +1 more source

Scratch-Healing Behavior of Ice by Local Sublimation and Condensation

open access: yes, 2022
We show that the surface of ice is scratch healing: micrometer-deep scratches in the ice surface spontaneously disappear by thermal relaxation on the time scale of roughly an hour.
Sander Woutersen   +9 more
core   +1 more source

Ensino de pensamento computacional para alunos do ensino básico usando Computação Desplugada e Scratch

open access: yesEm Extensão, 2022
A tecnologia está cada vez mais presente no cotidiano das pessoas, portanto, torna- se um importante recurso no processo de ensino e aprendizagem, com possibilidade de adoção não apenas em contextos específicos de cunho tecnológico, mas também em ...
Amanda Karollyne Monteiro Rodrigues   +2 more
doaj   +1 more source

Friction Analysis on Scratch Deformation Modes of Visco-Elastic-Plastic Materials [PDF]

open access: yes, 2012
Understanding of abrasion resistance and associated surfaces deformation mechanisms is of primary importance in materials engineering and design. Instrumented scratch testing has proven to be a useful tool for characterizing the abrasion resistance of ...
D.J. , Schipper   +3 more
core   +1 more source

The Itch-Scratch Cycle: A Review of the Mechanisms

open access: yesDermatology Practical & Conceptual, 2019
Background: Despite being one of the most common presenting dermatological symptoms, itching continues to perplex health care professionals because it is notoriously difficult to control.
Giulia Rinaldi
doaj   +1 more source

Gamification with Scratch or App Inventor in Higher Education: A Systematic Review

open access: yesFuture Internet, 2022
Programming skills should be taught and developed; Scratch and App Inventor are two tools that can contribute significantly to developing this competence in university students.
David Pérez-Jorge   +1 more
doaj   +1 more source

To "Sketch-A-Scratch"

open access: yes, 2015
+ ID: 552919 + PeerReviewed: Peer ...
Del Piccolo, Alan   +4 more
openaire   +5 more sources

Understanding Prospective Teachers’ Task Design Considerations through the Lens of the Theory of Didactical Situations

open access: yesMathematics, 2022
Task design, in general, and task design in a technological environment, is attracting the attention of educational researchers. The present research investigates task design of prospective teachers in the Scratch programming environment.
Wajeeh Daher   +2 more
doaj   +1 more source

Development of interactive learning media assisted by scratch to enhance understanding of rectangle and square concepts

open access: yesResearch and Development in Education
The rapid development of technology sparks an increase in educational innovations, one of which is the use of interactive learning media. Interactive learning media is a tool to gradually improves the delivery of mathematics learning materials.
Lioni Anka Monalisa   +6 more
doaj   +1 more source

‘I’m not really a clown’: critical reflection on a Clown Cabaret Scratch Night [PDF]

open access: yes, 2015
This article is a critical reflection on the Clown Cabaret Scratch Night at Assembly Roxy, 14 November 2014, organised by Plutôt la Vie and CloWnStePPing.
Amsden, Lucy
core   +1 more source

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