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A complete and efficient algorithm is proposed for searching form-closure grasps of n hard fingers on the surface of a three-dimensional object represented by discrete points. Both frictional and frictionless cases are considered. This algorithm starts to search a form-closure grasp from a randomly selected grasp using an efficient local search procedure(More)
Although engaging in an active lifestyle is beneficial for maintaining quality of life, a majority of wheelchair users are inactive. This study investigated the mobility characteristics and activity levels of manual wheelchair users in the residential setting and at the National Veterans Wheelchair Games (NVWG). Demographic factors that may have influenced(More)
Resveratrol has been reported to protect several types of cells against beta-amyloid peptide (Abeta) toxicity by scavenging reactive oxygen species (ROS) and inactivating caspase-3. However, other studies found that long-term treatment with resveratrol inhibited cells by inducing ROS generation and activating caspase-3. In the current report, a 48-h(More)
A smart home is a residence equipped with technology that observes the residents and provides proactive services. Most recently, it has been introduced as a potential solution to support independent living of people with disabilities and older adults, as well as to relieve the workload from family caregivers and health providers. One of the key supporting(More)
This study examined the usage of powered seating functions, including tilt-in-space, backrest recline, and seat elevation, among a group of wheelchair users during their typical daily activities. Twelve individuals who used a power wheelchair with seating functions participated in the study. They drove their own wheelchair and used the seating functions as(More)
The preparation, in-vitro release, in-vitro cytotoxicity, and in-vivo drug delivery of doxorubicin (DOX)-loaded chitosan (CS)-poly(acrylic acid) (PAA) hollow nanospheres were investigated. The loading was done by dissolving a certain amount of DOX in non-cross-linked CS-PAA nanospheres aqueous solution followed by cross-linking chitosan with glutaraldehyde.(More)
With about 2.2 million Americans currently using wheeled mobility devices, wheelchairs are frequently provided to people with impaired mobility to provide accessibility to the community. Individuals with spinal cord injuries, arthritis, balance disorders, and other conditions or diseases are typical users of wheelchairs. However, secondary injuries and(More)
BACKGROUND Advances in smartphones and the wide usage of social networking systems offer opportunities for the development of innovative interventions to promote physical activity. To that end, we developed a persuasive and social mHealth application designed to monitor and motivate users to walk more every day. OBJECTIVE The objectives of this project(More)
A multiwalled carbon nanotube (MWNT)-based drug delivery system was developed by covalently combining carbon nanotubes with the antitumor agent 10-hydroxycamptothecin (HCPT) using hydrophilic diaminotriethylene glycol as the spacer between nanotube and drug moieties. The surface functionalizations of the nanotube were carried out by enrichment of carboxylic(More)