OBJECTIVE There have been no studies describing the occurrence of untreated medical condition(s) in elders with depression who self-neglect. This study compares the prevalence of depression as indicated by an abnormal score ( > or = 5) on the Geriatric Depression Scale-Short Form (GDS-SF) between self-neglecters and matched non self-neglecting community-dwelling elders. It also describes the re...

Culture and history affect the ways in which medical knowledge is shaped, sustained and changed. The less knowledge we have, the larger the space for the cultural imprint becomes. Based on these assumptions, we ask: how have medical constructions of long-term exhaustion changed over time, and how are changing constructions related to societal change? To discuss these questions we conducted a co...

background : studies have shown a gradual decline in empathy of medical trainees with increasing years of education. methods to augment empathy show some promise, but the most effective methods are both expensive and time consuming.to assess effectiveness of communication skills training program as a distant learning method in improving empathy.   method s: fourteen first year residents of psyc...

this study aims to investigate the quality of life (qol) of tehran university of medical sciences' (tums) medical students at different educational levels and specify the most important factors related to this quality. a sample of 242 medical students was selected randomly, given their number in three educational levels (basic sciences, physiopathology-stager and intern). the qol was measured b...

background: behavioral risk factors are responsible for a substantial portion of chronic disease. educating patients is a professional responsibility of medical practitioners. however, it has been observed that physicians did not practice what they preach. we aimed to study whether medical colleges inculcate health‑promoting lifestyle among medical students during their stay in medical colleges...

In this paper we present a comprehensive existence theory for linear and nonlinear reaction random walk systems. The methods are based on semigroup theory for solutions of differential equations on Banach spaces. The solution properties on a bounded domain sensitively depend on the choice of boundary conditions. For Neumann or for periodic boundary conditions, singularities are transported alon...

In this paper we consider linear systems with possibly exponentially unstable eigenvalues and with saturating input. It is shown that for a class of unstable systems there exists a bounded linear stabilizing controller for sets of initial conditions which may be arbitrary large and bounded in some directions of the state space while other directions must be bounded. Hence the results are strong...

Inverse problems arise in many important applications, including medical imaging, microscopy, geophysics, and astrophysics. Because they often involve large scale, extremely ill-conditioned linear systems, linear algebra problems associated with inverse problems are extremely challenging to solve, both mathematically and computationally. Solution schemes require enforcing regularization, using ...

In many process control applications, the system under consideration is compart-mental and positive. This means that the system satisfies a mass conservation condition and that both the state variables and the control input are physically constrained to remain non-negative along the system trajectories. For such systems, the design of state feedback controllers makes sense only if the control f...

Many vehicle systems contain rolling elements which exhibit unstable rolling motion, called shimmying, which may lead to disastrous results. The classical shimmying wheel is a simple model which captures the essential dynamics of such systems. In particular, the uncontrolled stability of the rolling wheel is characterized by a subcritical Hopf bifurcation when certain parameter values are varie...