scholarly journals A aprendizagem de Química em meio a pandemia de Covid-19, período de 2021

2022 ◽  
Vol 2 (3) ◽  
pp. 266-272
Author(s):  
Gabriela Caroline Kroth ◽  
Bianca Isabel Bender ◽  
Eduardo Augusto Schneider ◽  
Wolmar Alipio Severo Filho ◽  
Jane Herber
Keyword(s):  
Organic Chemistry ◽  
Inorganic Chemistry ◽  
Virtual Learning ◽  
Learning Laboratories

 Este trabalho apresenta um estudo de caso realizado nas disciplinas de Química Geral e Inorgânica, Química Orgânica e Fenômenos Químicos Aplicados que ocorreram no semestre B de 2021 em uma universidade comunitária. As experiências relacionam-se com aulas teóricas e práticas no período da pandemia da Covid-19. Todas elas ministradas pelo mesmo professor. Optou-se por fazer uma descrição dos resultados dos questionamentos realizados aos estudantes em uma roda de conversa. Apresenta-se a descrição dos resultados e ao finalizar a pesquisa percebe-se que os estudantes identificaram algumas fragilidades, principalmente nas aulas práticas realizadas por meio de laboratórios virtuais de aprendizagem, identificam que é uma ferramenta adequada, tratando-se da realidade de aulas remotas, mas entendem que as aulas práticas na modalidade presencial tem o seu devido valor, principalmente se tratando de Química.     This work presents a case study carried out in the disciplines of General and Inorganic Chemistry, Organic Chemistry and Applied Chemical Phenomena that took place in the B semester of 2021 at a community university. The experiences are related to theoretical and practical classes during the Covid-19 pandemic period. All of them taught by the same teacher. It was decided to make a description of the results of the questions asked to students in a conversation circle. The description of the results is presented and, at the end of the research, it is clear that the students identified some weaknesses, especially in practical classes carried out through virtual learning laboratories, identifying that it is an adequate tool, considering the reality of remote classes , but they understand that the practical classes in the presential modality have their due value, especially when it comes to Chemistry.

Carbohydrazide analogues: a review of synthesis and biological activities

2021 ◽  
Vol 21 ◽  
Author(s):  
Ebuka Leonard Onyeyilim ◽  
Mercy Amarachi Ezeokonkwo ◽  
David Izuchukwu Ugwu ◽  
Chiamaka Peace Uzoewulu ◽  
Florence Uchenna Eze ◽  
...  
Keyword(s):  
Organic Chemistry ◽  
Inorganic Chemistry ◽  
Schiff Bases ◽  
Bioactive Compounds ◽  
Biological Activities ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Important Class ◽  
Synthetic Route ◽  
Structure Activity

: Carbohydrazides and their Schiff bases are important class of heterocycles that are not only employed in the area of organic chemistry, but also have tremendous applications in physical and inorganic chemistry. A series of potential bioactive compounds, containing carbohydrazide functionality and their hydrazone derivatives have been synthesized and screened for antibacterial, anticancer, antifungal and anti-inflammatory etc. This brief review discloses some synthetic route to so many reported carbohydrazides, their Schiff bases, their biological activities and their structure activity relationship.

Being social in a 3D collaborative virtual learning environment : a case study of youth with autism spectrum disorder learning social competence in iSocial

2014 ◽  
Author(s):  
◽  
Xianhui Wang
Keyword(s):  
Autism Spectrum Disorder ◽  
Social Interaction ◽  
Social Competence ◽  
Social Interactions ◽  
Social Presence ◽  
Virtual Learning ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Reciprocal Social Interaction

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Over the past decade 3D collaborative virtual learning has gained increasing attention from researchers and practitioners in educational technology. Learners experience of presence in collaborative activities and social interactions among learners are identified as key constructs for the social dimensions of 3D collaborative virtual learning. 3D Collaborative Virtual Learning Environments (CVLEs) are beginning to be used to support learning in a variety of disciplines, including social skills learning for individuals with Autism Spectrum Disorder (ASD). This case study explores 11 youth with ASD's experience of embodied social presence and reciprocal social interaction while learning social competence in a 3D CVLE-iSocial. The findings describe youth with ASD's 1) levels of embodied presence, embodied copresence, and embodied social presence; and 2) verbal and nonverbal reciprocal social interactions across the variety of Naturalistic Practice activities in iSocial. In addition, the results of this case study inform future design by indicating associations of design features of iSocial 3D CVLE with youth with ASD's experience of embodied social presence and characteristics of reciprocal social interaction.

Free radicals in the European periphery: ‘translating’ organic chemistry from Zurich to Barcelona in the early twentieth century

2004 ◽  
Vol 37 (2) ◽  
pp. 167-191 ◽  
Author(s):  
AGUSTÍ NIETO-GALAN
Keyword(s):  
Organic Chemistry ◽  
Historical Data ◽  
Local Environment ◽  
Federal Institute ◽  
Institute Of Technology ◽  
European Periphery ◽  
Free Radical Chemistry ◽  
The University ◽  
Scientific Standards

In 1915, after acquiring first-hand knowledge of the new free radical chemistry at the Swiss Federal Institute of Technology (ETH) in Zurich, Antonio García Banús (1888–1955) became professor of organic chemistry at the University of Barcelona and created his own research group, which was to last from 1915 until 1936. He was a gifted teacher and a prolific writer who attempted to introduce international scientific standards into his local environment. This paper analyses the bridges that Banús built between the experimental culture of organic chemistry at the ETH and the University of Barcelona. It presents a case study which aims to provide new historical data for the general analysis of groups who conducted their work in the European periphery.

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