BACKGROUND We examined the association between perceived environmental barriers to outdoor mobility and loneliness among community-dwelling older people. In addition, we studied whether walking difficulties and autonomy in participation outdoors affected this association. METHODS Cross-sectional analyses of face-to-face home interview data with 848 people aged 75-90 years (mean age: 80.1 year...

Integration of vehicular ad hoc network and fixed IP network is important to provide Internet connection and mobile data service for vehicles. However, the unique characteristics of vehicular networks, such as linear topology and constrained movements of vehicles, are not considered in the conventional mobility management schemes. Using conventional schemes, unnecessary management messages are ...

In this research the experimental and theoretical studies on different Enhanced Oil Recovery (EOR) techniques, i.e. Water Flooding (WF), Gas Injection (GI) and Water Alternating Gas process (WAG) were performed on specimens taken from an Iranian carbonate offshore reservoir at the reservoir condition. The experimental results for each specified techniques were compared with the correspondin...

Recently, two-dimensional materials such as molybdenum disulphide (MoS2) have been demonstrated to realize field effect transistors (FET) with a large current on-off ratio. However, the carrier mobility in backgate MoS2 FET is rather low (typically 0.5-20 cm(2)/V · s). Here, we report a novel field-effect Schottky barrier transistors (FESBT) based on graphene-MoS2 heterojunction (GMH), where th...

OBJECTIVE to determine the association of high sensitivity C-reactive protein (HsCRP) levels with a risk of mobility disability and decline in older adults with and without vascular disease. DESIGN prospective cohort. SETTING community-residing population. SUBJECTS six hundred and twenty-four adults age 70 and older (62% women) with gait and HsCRP assessments. MAIN OUTCOME MEASURES inci...

The intact graphene has a zero bandgap and subsequent low on-off ratio, while modifications on graphene to open the bandgap always bring about dramatic reduction of mobility. Therefore, how to build a graphene device performing both large on-off ratio and high carrier mobility is one of the most attractive topics. Herein, we investigated the intrinsic mobility of graphene-related systems theore...

AIMS To test the hypothesis that gardening is beneficial for survival after taking time-dependent comorbidities, mobility, and depression into account in a longitudinal middle-aged (50-64 years) and older (≥65 years) cohort in Taiwan. METHODS The cohort contained 5,058 nationally sampled adults ≥50 years old from the Taiwan Longitudinal Study on Aging (1996-2007). Gardening was defined as gro...