Entre a paragem e o trânsito: atenção psicossocial para a errância e o nomadismo / Between stop and transit: Psychosocial Attention to Wandering and Nomadism

O mundo atual produz mobilidades geográficas e psicossociais diversas. Dentre elas encontram-se aquelas realizadas por andarilhos e pessoas em situação de rua, que vivem em trânsito constante pelas rodovias ou habitam espaços abertos e públicos da cidade. O objetivo deste artigo é examinar e discutir políticas públicas e práticas na área da saúde mental coletiva e seus posicionamentos em relação às formas de vida nômades e errantes. Para tanto, foram analisados e comparados princípios e estratégias dos serviços públicos de saúde com o modo de vida de andarilhos e pessoas em situação de rua. Como principal conclusão, foi possível constatar que os serviços de atenção em saúde mental pública enfrentam dificuldades e obstáculos para acolher e contemplar as demandas dessas pessoas porque se orientam por estratégias e serviços calcados na perspectiva da territorialização e da vida sedentária situada em espaços geográficos e psicossociais fixos e estáveis.

The present world produces diverse geographic and psychosocial mobilities. Among them are those performed by wanderers and homeless people, who live in constant transit through highways or inhabit open and public spaces of the city. This article aims to examine and discuss public policies and practices in the field of collective mental health and their positioning in relation to nomadic and wandering life forms. For that, the principles and strategies of public health services were analyzed and compared with the way of life of wanderers and homeless people. As the main conclusion, it was possible to observe that public mental health services face difficulties and obstacles to accept and respond to the demands of these people because they are guided by strategies and services based on the perspective of territorialization and sedentary life in fixed and stable geographical and psychosocial spaces.

Methods of removing the baseline wander in ECG based on the lifting wavelet transform / 中国医学装备

Objective:To avoid the redundant computation based on the convolution operation in the traditional wavelet transform, and to remove the baseline wander noise existing in the course of collecting the ECG signal. Methods: Use the lifting wavelet transform with two wavelets, and constitute the ECG signal with the noise removed after decomposing, setting the subband coefficient including the noise to zero, and rebuilding. Results:Use MATLAB to remove the baseline wander noise in the ECG signal and bw provided by the MIT-BIH database, and the results show that the baseline wander was removed effectively. Conclusion:The baseline wander noise in the ECG signal can be removed accurately though the method mentioned above, the waveform information in the original ECG signal can be maintained effectively, and subsequently, that can provide help for detecting the characteristic parameters in the ECG signal.