39 research outputs found

    Using Pirate Plunder to develop children’s abstraction skills in Scratch

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    Scratch users often struggle to detect and correct ‘code smells’ (bad programming practices) such as duplicated blocks and large scripts, which can make programs difficult to understand and debug. These ‘smells’ can be caused by a lack of abstraction, a skill that plays a key role in computer science and computational thinking. We created Pirate Plunder, a novel educational block-based programming game, that aims to teach children to reduce smells by reusing code in Scratch. This work describes an experimental study designed to measure the efficacy of Pirate Plunder with children aged 10 and 11. The findings were that children who played the game were then able to use custom blocks (procedures) to reuse code in Scratch, compared to non-programming and programming control groups

    Uneventful octreotide LAR therapy throughout three pregnancies, with favorable delivery and anthropometric measures for each newborn: a case report

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    <p>Abstract</p> <p>Introduction</p> <p>The safety of octreotide use, in its short-acting preparation, in pregnancy is still unclear. This report provides the first documentation of uneventful octreotide LAR use during three pregnancies in a woman with bronchial carcinoid-associated adrenocorticotropic hormone-dependent Cushing's syndrome.</p> <p>Case presentation</p> <p>A 25-year-old Arabic woman presented to our emergency department with rapid onset of headache, flaring acne and hirsutism, facial puffiness, weight gain and paroxysmal myopathy, and paranoiac thoughts of rape and sexual intimidation. After undergoing surgical removal of a mass by left lower lung lobectomy, her residual lung disease medical therapy failed. Chronic octreotide LAR injections were initiated as indicated by a positive octreoscan.</p> <p>Follow-up revealed a long-lasting positive response to octreotide. Avidity of octreotide to somatostatin receptor sub-type 2 was later confirmed by a positive somatostatin receptor sub-type 2 in the resected tumor specimen. Against our instructions, the patient had three spontaneous pregnancies leading to delivery of three full-term healthy children while her octreotide LAR therapy continued.</p> <p>Conclusion</p> <p>This case adds more data supporting the potential for the safe use of octreotide and the feasibility of octreotide LAR use during pregnancy, making compliance with the patient's preference not to withdraw octreotide therapy as soon as her pregnancy is confirmed a thoughtful option.</p

    On the role of proofs in a course on design and analysis of algorithms

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    Reduction -- an abstract thinking pattern

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    Reductive thinking in undergraduate CS courses

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    Reductive thinking in undergraduate CS courses

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