This paper presents a new forum for the URI Online Judge website, aimed at solving problems observed during its first version. With a consistent, more intuitive and better-organized interface, we seek to strengthen the teaching-learning process by encouraging the exchange of knowledge and the sharing of experiences in programming.Resumo. Este artigo apresenta um novo ambiente de fórum para o portal URI Online Judge, visando sanar problemas observados durante sua primeira versão. Com uma interface consistente, mais intuitiva e melhor organizada, buscamos fortalecer o processo de ensino-aprendizagem incentivando a troca de conhecimento e o compartilhamento de experiências naárea de programação.

This study aimed to identify the sustainability practices of pig creation on rural properties in the West region of the state of Santa Catarina, Brazil. The analysis included the system of sustainability indicators in pig farming. Although managers comply with the regulations and legislation, there are practical difficulties related to the destination of production waste, water use, expenditure controls, and social interaction. The sustainability analysis allowed investigating 30 properties and using a scale of 0-10 points, rate factors related to organizational, social, and environmental practices. Nine rural properties had a general performance, indicating characteristics of in search for sustainability, while 21 obtained a performance between 2.5 and 5.0 points, indicating fragilities in organizational, environmental, and social practices. It highlights the importance of analyzing sustainability indicators as a mechanism to control and implement better practices to assist in the search for sustainable development.

The importance of adopting technology innovations, mainly in food production contributing to food safety, is significant. This study aims to analyze the diffusion of agricultural production technologies in Brazil, mainly the use of wheel tractors, grain and sugarcane harvesters by producers. A quantitative approach is used to understand the market-level factors that influence the adoption of technologies. A supply response is estimated based on the Bass diffusion model. Data were collected from the National Association of Vehicle Manufacturers (Anfavea), which includes Brazilian monthly sales information for wheel tractors, grain and sugarcane harvesters. For each agricultural machine, 700 months of sales records were collected. The imitator’s coefficients were higher than innovators for all types of machines studied. The data showed that, for wheel tractors and grain harvesters, the diffusion curve presented S format (S-curves). However, sugarcane harvesters had a different pattern of diffusion. The distribution of the investigated technologies in Brazil was an imitation process; the market saturation was observed for wheel tractors and grain harvesters. This study helps to comprehend the supply response of agricultural machinery and presents suggestions for the diffusion of agricultural production technologies in Brazil. The experience has shown that several factors can constrain technology adoption, such as lack of credit, limited access to information and inputs, and inadequate infrastructure.