James J. Collins is an Investigator of the Howard Hughes Medical Institute, and a William F. Warren Distinguished Professor, University Professor, Professor of Biomedical Engineering, Professor of Medicine and CoDirector of the Center for BioDynamics at Boston University. He is also a core founding faculty member of the Wyss Institute for Biologically Inspired Engineering at Harvard University....

Introduction This is a lecture about the vicissitudes of the doctor-patient relationship; especially how psychological and contextual factors may impact upon it. Discussions of the "Difficult Patient" and boundary issues, especially boundary violations, share the common element of being examples of the doctor-patient relationship gone awry. The discussion of these two topics will bring out issu...

Predator-prey theory predicts that in the presence of multiple types of predators using a common prey, predator facilitation may result as a consequence of contrasting prey defense mechanisms, where reducing the risk from one predator increases the risk from the other. While predator facilitation is well established in natural predator-prey systems, little attention has been paid to situations ...

T he major function of the respiratory system is to procure oxygen from the external environment and to eliminate carbon dioxide from the body at rates required by tissue metabolism. Unfortunately, ambient inspired air contains not only oxygen which is vital to survival, but also noxious gases and a multitude of particulates, including viable microorganisms, which the lungs must exclude to main...

Nowadays, Distributed Denial-of-Service (DDoS) attacks are a major threat for all sizes of networks. The number of attacks against companies and institutions steadily increased over the last years. Downtime of an enterprise network usually causes financial damage. Therefore, it is important to have mechanism for DDoS defense. In this paper, various DDoS defense mechanisms are reviewed and compa...

Introduction: Infertility could decrease the self-esteem of the infertile couples. Using the defensive style is one way to deal with stressful events. Therefore, the aim of this study was to investigate the role of self-esteem and defense mechanisms based on the cause of infertility. Methods: In this cross-sectional study, 400 infertile couples referred to infertility center in Tehran, Iran. P...