In this paper, we introduce Roillo, a social robotic platform for investigating, in the context of children's playrooms, questions about how to design compelling nonverbal interactive behaviors for social robots. Specifically, we are interested in the importance of rhythm to natural interactions and its role in the expression of affect, attention, and intent. Our design process has consisted of rendering, animation, surveys, mechanical prototyping, and puppeteered interaction with children

The analysis of food consumed by a large part of the population is important to establish the nutritional composition of diets to verify if diets are adequate regarding essential nutrients. In the present study, diet analysis results of steel industry workers´ dietary consumption are presented. Workers from 19 to 56 years old were selected and their diets were collected by a duplicate portion technique, including all the meals and beverages consumed over 3 consecutive days. The content of lipids, proteins, carbohydrates, ash, humidity, fiber, vitamins B1 and B2 and piridoxine were determined in 24 diet samples. Comparing the results with the values set by the new dietary recommendation dietary intakes (DRIs), it was observed that the workers´ diets were 100% adequate in carbohydrates and 96% in proteins and lipids. However, dietetic fiber content of the diets was considered inadequate (only 4.2% of adequacy). All the diets were adequate in B1 and B2 vitamins, while 58% of the diets were inadequate in terms of piridoxine.

In this paper, it is demonstrated that time-frequency techniques may be used for an enhanced diagnosis of the heart disease. Three time-frequency analysis techniques are compared: spectrogram, Wigner distribution and S- method. The results show that the S-method could be used in the heart sounds analysis, and that is also capable of enhancing the diagnostic techniques available to medical personnel.