Formative assessment of inquiry skills for Responsible Research and Innovation using 3D Virtual Reality Glasses and Face Recognition

This paper examines the experience and views of learners on technological innovations with a novel pedagogical model to enhance formative online assessment of Responsible Research and Innovation (RRI) skills with e-authentication. The authors developed the OER “virtual classroom” app based on the famous “Bletchley Park” and also an activity for learners exploring this museum in pairs with individual assessment. Participants practiced RRI skills and shared their views about their VR experience in an e-assessment activity with e-authentication through the TeSLA face recognition system. Participants were students from the UK and Brazil. Our research questions include whether the 3DVRG activities in pairs in the same physical environment support peer-learning with assessment-in-context. Findings revealed that activities that enabled physical interactions in pairs enriched the virtual interactions in the museum. The combination of authentic scenario, interactive tasks and assessment-in-context helped learners acquire new information and connect with existing knowledge. These interactions enhanced the immersive learning experience, particularly for those who did not experienced sickness with 3DVRG. Three types of interactions with the virtual space, their peer and the topic respectively enabled the virtual, social and cognitive presence

Percepção viso-motora de escolares com Transtorno do Déficit de Atenção com Hiperatividade

PURPOSE: The aim of this study was to characterize and to compare the visual-motor perception of students with Attention Deficit with Hyperactivity Disorder (ADHD) with students with good academic performance. METHODS: Forty students from 2nd to 5th grades of an elementary public school, male gender (100%), aged between 7 and 10 years and 8 months old participated, divided into: GI (20 students with ADHD) and GII (20 students with good academic performance), paired according to age, schooling and gender with GI. The students were submitted to Developmental Test of Visual Perception (DTVP-2). RESULTS: The students of GI presented low performance in spatial position and visual closure (reduced motor) and inferior age equivalent in reduced motor perception, when compared to GII. CONCLUSION: The difficulties in visual-motor perception presented by students of GI cannot be attributed to a primary deficit, but to a secondary phenomenon of inattention that interferes directly in their visual-motor performance.OBJETIVO: Caracterizar e comparar as habilidades de percepção viso-motoras de escolares com Transtorno do Déficit de Atenção com Hiperatividade (TDAH) com escolares com bom desempenho acadêmico. MÉTODOS: Participaram deste estudo 40 escolares na faixa etária de 7 anos a 10 anos e 8 meses, do 2º ao 5º ano do Ensino Fundamental de escolas públicas, divididos em GI (20 escolares com diagnóstico interdisciplinar de TDAH) do gênero masculino (100%) e GII (20 escolares com bom desempenho escolar), pareados com o GI em idade, escolaridade e gênero. Os escolares foram submetidos ao Teste Evolutivo de Percepção Visual (DTVP-2). RESULTADOS: Os escolares de GI apresentaram desempenho inferior na função de posição no espaço e closura visual (motricidade reduzida) e equivalente de idade inferior para percepção de motricidade reduzida em relação ao GII. CONCLUSÃO: As dificuldades em percepção viso-motora apresentadas pelos escolares de GI podem ser atribuídas não a um déficit primário, mas a um fenômeno secundário à desatenção que interfere de forma direta em seu desempenho de percepção viso-motora.Universidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Filosofia e Ciências Departamento de FonoaudiologiaUniversidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Filosofia e CiênciasUniversidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Filosofia e Ciências Departamento de FonoaudiologiaUniversidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Filosofia e Ciência

Distribution of AMY2 polymorphism in S. Tomé and Príncipe (West Africa)

Abstract The genetic polymorphism of AMY2 was studied in the population of S. Tom and Prncipe (West Africa) using agarose gel electrophoresis. AMY2 frequencies are reported for the first time in a subSaharian population. The gene frequencies found were: AMY2*1=0.948, AMY2*3=0.052 (N=173)

Distribution of AMY2 polymorphism in S. Tomé and Príncipe (West Africa)

Abstract The genetic polymorphism of AMY2 was studied in the population of S. Tom and Prncipe (West Africa) using agarose gel electrophoresis. AMY2 frequencies are reported for the first time in a subSaharian population. The gene frequencies found were: AMY2*1=0.948, AMY2*3=0.052 (N=173)

"Human hepatocytes are more resistent than rat hepatocytes to anoxia-reoxygenation injury".

We performed this study to determine whether perfused isolated human and rat hepatocytes have different sensitivities to anoxia-reoxygenation injury. Oxygen free radicals were detected by lucigenin-enhanced chemiluminescence. Lipid peroxidation was assessed by measuring malondialdehyde release. Cell injury was evaluated by measuring lactate dehydrogenase release and trypan blue uptake. During the control period, lucigenin-enhanced chemiluminescence, malondialdehyde and lactate dehydrogenase release and trypan blue uptake were similar in rat and human hepatocytes. During 3.5 hr of anoxia, lucigenin-enhanced chemiluminescence decreased to back-ground levels and malondialdehyde release remained constant in both groups. In contrast, lactate dehydrogenase release increased eightfold in rat hepatocytes but only threefold in human hepatocytes. With reoxygenation after 2.5 hr of anoxia, in rat hepatocytes lucigenin-enhanced chemiluminescence increased 13-fold within 15 min and then declined toward control levels. Malondialdehyde release doubled after 1 hr of reoxygenation. The rate of lactate dehydrogenase release increased to a level almost twice that observed in cells kept continuously anoxic. In contrast, with human hepatocytes lucigenin-enhanced chemiluminescence increased only fourfold, whereas malondialdehyde and lactate dehydrogenase releases did not differ significantly from those levels measured in cells perfused continuously under anoxic conditions. At the end of the experiment, the increase in trypan blue uptake was significantly greater with rat hepatocytes than with human hepatocytes. These results demonstrate that (a) during reoxygenation following 2.5 hr of anoxia, isolated human hepatocytes generate fewer oxygen free radical, and lipoperoxides than do rat hepatocytes, and (b) human hepatocytes are more resistant to cell injury during anoxia-reoxygenation than are rat hepatocytes

Handwriting Kinematic Differences Between Copying and Dictation

Handwriting is a human activity that may be affected by the modality used as input of the information to be written, mainly copying or dictation. Many processes at different levels are involved to produce motor planning and graphomotor automation of handwriting. In order to quantify possible kinematic differences due to the influence of auditory or visual input modalities to these processes, three different tests were proposed to a sample of 101 young students and several kinematics parameters measuring handwriting characteristics were evaluated. The tests required to copy as accurate (CA) and as fast (CF) as possible an Italian sentence and to write the same sentence under dictation (DF). All parameters showed significant differences between each pair of the three tests. The best performance was obtained in the CF test followed by the DF and CA tests; in the latter the greater accuracy required to produce writing yielded lower velocity and automation as well as a longer motor planning time. On the other hand, the dictation response was more similar to that of CF than CA showing a larger planning time, probably due to a different time necessary to correctly identify the words to reproduce. The combination of the two tests could be useful to study the impairment of either visual or auditory input