INTRODUCTION Loneliness is a subjective, negative feeling related to the person's own experience of deficient social relations. The determinants of loneliness are most often defined on the basis of 2 causal models. The first model examines the external factors, which are absent in the social network, as the root of the loneliness; while the second explanatory model refers to the internal factor...

BACKGROUND Uninformed generalizations about how many elderly people have ever lived, based on a poor understanding of demography, are found in a surprising number of important publications. OBJECTIVE We extend the methodology applied to the controversial question “how many people have ever been born?” initiated by Fucks, Winkler, and Keyfitz, to the proportion of people who have ever reached a ...

BACKGROUND It seems necessary to study the health status of this age group to promote their health and prevent disease as well as care planning. In order to achieve this goal, a clear definition of the concept of elderly health is essential. METHOD Hybrid concept analysis, our research design, utilizes both theoretical analysis of literature and empirical observation to define a concept. We c...

This paper addresses the problem of the evaluation of people counting systems. The relation between the real people number and the output of the people counting system is used to motivate the computation of the maximum number of people as a scenario and geometry specific quantity which supports the evaluation of the system output. Based on the camera field-of-view we determine the maximum numbe...