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Recent developments in sensor technology, wearable computing, Internet of Things (IoT), and wireless communication have given rise to research in ubiquitous healthcare and remote monitoring of human's health and activities. Health monitoring systems involve processing and analysis of data retrieved from smartphones, smart watches, smart bracelets, as well as various sensors and wearable devices. Such systems enable continuous monitoring of patients psychological and health conditions by sensing and transmitting measurements such as heart rate, electrocardiogram, body temperature, respiratory rate, chest sounds, or blood pressure. Pervasive healthcare, as a relevant application domain in this context, aims at revolutionizing the delivery of medical services through a medical assistive environment and facilitates the independent living of patients. In this chapter, we discuss (1) data collection, fusion, ownership and privacy issues; (2) models, technologies and solutions for

This note is a corrigendum of the paper "Control system for reducing energy consumption in backbone computer network" [1]. We point out technical errors in mathematical models at pages 1744 and 1747.We apologize for a technical errors in the formulas (6)- (8) and (21)- (23) in Section 5, pages 1744 and 1747, respectively. In (6), (8), (21) and (23) P C cD1 g rc l cp was missing. In (7) and (22) P C cD1 g rc P P pD1 l cp was missing. The correct formulas are as follows:formulas (6) and (21):rD1;:::;R;formulas (7) and (22):formulas (8) Additionally, the following sentence "We assume that at a given time instant two ports connected by e-th link are in the same state k." at page 1743 (Section 5) may be interpreted as a suggestion that links building the network are symmetric, i.e., they should operate in both directions at the same energy state. However, more flexible formulation was intended by the authors of the paper. The symmetric links were not considered. In general, in real networks energy states of both halves of the link can be setup independently. Thus, the mentioned sentence should be removed from the article. ACKNOWLEDGEMENTOur thanks to Andrzej Karbowski for bringing this matter to our attention.

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