............................................................................. X CHAPTER 1: Elderly Patients with Heart Failure: The Burden of Comorbidities and Physical and Cognitive Impairments..................................................................

PURPOSE New models of disability identify the importance of measuring the influence of the environment (environmental barriers) on the performance of persons with disabilities. The objective of this paper is to present a new measure of the receptivity of the physical environment for persons with mobility impairments and to offer preliminary information about its psychometric properties. METHO...

In all-optical networks, signals are transmitted through physical layer with no regeneration. Therefore, noise accumulation along lightpath can severely impair optical signal-to-noise ratio. For this reason, many efforts have been made to develop impairment aware routing and wavelength assignment algorithms (IRWA) in order to mitigate the impairments effects, improving the network performance. ...

Bandwidth allocation in next generation broadband wireless networks (4G systems) is a challenging issue. The scheduling shall provide mobile multimedia transmission services with an adequate QoS. These new multimedia services with tight QoS constraints require increased system capacity together with high fairness. The past decades have witnessed intense research efforts on wireless communicatio...

The mechanism by which dementia occurs in patients with Alzheimer's disease (AD) is not known. We assessed changes in hippocampal dendritic spines of APP/PS1 transgenic mice that accumulate amyloid beta throughout the brain. Three-dimensional analysis of 21,507 dendritic spines in the dentate gyrus, a region crucial for learning and memory, revealed a substantial decrease in the frequency of la...

............................................................................................................... 1 LIST OF PAPERS ....................................................................................................... 3 ABBREVIATIONS ..................................................................................................... 4 DEFINITIONS ...................................

objectives: in september 2002 university of social welfare & rehabilitation sciences established a pilot universal newborn hearing screening program in two crowded maternity hospital in tehran. our objective was to assess the feasibility of implementing universal newborn hearing screening in iran. methods: between september 2002 and march 2004 a total of 7718 newborns were screened for hearing ...

the aim of this study is experimental assay of sensitivity and stability of a bimetallic silver/gold spr sensor chip. this chip utilizes the sensitivity of the silver and the stability of the gold. moreover, the silver layer (instead of usual cr or ti layer) was used as an adhesive intermediate layer between the gold layer and the glass substrate. the optimization of the gold/silver thickness u...