Hang T. T. Pham

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This qualitative study was conducted to explore health-seeking behaviour for sexually transmitted infections (STIs) and HIV testing among female sex workers (FSWs) in the cities of Hanoi and Da Nang, Vietnam. Data were gathered from in-depth interviews, focus groups and participant observation. Results suggest that women's decision to seek STI treatment and(More)
This paper discusses skillful role divisions of coordinated motion between two agents in a crank-rotation task. The roles for coordination, called “dynamical role division,” emerge from dynamic interaction between the agents, through which each agent comes to play a specialized role without conscious understanding. This paper also proposes a(More)
This paper discusses skillful role divisions of coordinated motion between two subjects in a crank-rotation task. The roles for coordination, called “specialization”, emerge from only haptic interaction between the subjects, through which each subject comes to play a specialized role without conscious understanding. The purpose of this paper(More)
This paper focuses on dynamical role divisions of cooperation interaction between two human subjects in a typical cooperation task, the crank-rotation task. The dynamical role division in which each subject plays a specialized role without conscious understanding is a key issue that brings the efficiency to the performance of the crank-cooperation work. By(More)
To facilitate better understanding of the environment and power structures in which sex work in Vietnam takes place, this study examined the sex workers' social and economic lives, their working environment, social relationships and presentation of self in everyday social contacts and interactions. Thirty in-depth interviews and 14 focus groups were(More)
This paper presents a novel method for controlling a single-joint robot arm driven by two pneumatic artificial muscles (PAMs). We introduce the concepts of the agonist-antagonist muscle-pairs ratio (A-A ratio) and the agonist-antagonist muscle-pairs activity (A-A activity), and demonstrate that our concepts enable separate linear control of the equilibrium(More)
The need of solving the problem of multi-degrees-of-freedom in motor control is increasing as human-like robots become more popular these days. Muscle synergies hypothesis is a prominent suggestion for this problem. In this paper, we investigated the muscle synergies extracted from human subjects in a producing-force task to explore the mechanism of the(More)