Indoor navigation is gaining an increasing interest among researchers in many domains. In many cases users need to orient quickly in complex environments, which is not always the target of current routing algorithms. The paper reviews current indoor pathfinding approaches and discusses some of the limitations. In order to support a natural movement in buildings, typically for emergencies, we pu...

For over the past several decades, there has been a great concern about energy crisis and lackof non-renewable resources. Residential buildings take more than 25% of the total energy consumption and morethan 75% of energy consumption in these buildings is for heating, cooling and hot sanitary water. On the other hand,traditional buildings of Iran were designed according to ecological conditions...

How are hospitals supposed to cater for patients who are a security risk and still pursue a progressive, 'open door' policy with the majority of their patients? Dr. Norman Imlah, medical director of All Saints Hospital, Birmingham, puts the case for closed special units. advances in the treatment and management of the mentally ill in Britain have brought problems for the legislators, but none m...

IN THIS ISSUE In this issue of Physics & Society, we continue our series on the risks of nuclear weapons after the Cold War. In their article Illicit Trafficking of Weapons-Usable Nuclear Material: Facts and Uncertainties, Lyudmila Zaitseva and Friedrich Steinhausler have provided us with a very detailed look at what is known about the smuggling of fissile materials. They have also provided a r...

on the part of the professional staff to foster the mystique, even to the extent of keeping the administrative and professional staff apart, as far as possible. The office door was always kept closed. Shortly after I started, the psychiatric social worker left and so, through shortage of staff, the office door had to be opened. I had to adopt duties that I knew little about, with very few guide...