BACKGROUND Quality of life (QOL) improvement is the main objective of treating patients with irritable bowel syndrome (IBS). This study aimed to assess the validity, reliability, and factor analysis of IBS-QOL-34 questionnaire as a common transcultural instrument for Iranian IBS patients. MATERIALS AND METHODS Two hundred and forty patients with IBS (based on gastroenterologists' diagnosis ac...

In this paper, we propose a new client buffer management scheme to adaptively regulate and optimize the decoded video quality for video streaming applications. Our scheme packetizes and prioritizes the video bitstream of MPEG-4 Fine Granularity Scalability. We assign individual packet a priority factor according to its rate-distortion performance and the buffer is managed based on the received ...

Achieving optimal production cycle time for improving manufacturing processes is one of the common problems in production planning. During recent years, different approaches have been developed for solving this problem, but most of them assume that mean quality characteristic is constant over production run length and sets it on customer’s target value. However, the process mean may drift from ...

The Worldwide Interoperability for Microwave Access (WiMAX) is the IEEE 802.16 standard. Scheduling in WiMAX become one of the most challenging issues, since it is responsible for distributing available resources among users to meet the Quality of Service(QOS) criteria such as delay, delay jitter, fairness and throughput requirements. However, no specific scheduling mechanism has been defined t...

Both congestion control and Quality of Service (QoS) are important quality attributes in computer networks. Specifically, for the future Internet architecture known as Named Data Networking (NDN), solutions using hop-by-hop interest shaping have shown to cope with the traffic congestion issue. Ad-hoc techniques for implementing QoS in NDN have been proposed. In this paper, we propose a new QoS ...

— The need for better quality of service is growing as new quality sensitive services are becoming more and more important in data networks. The key element in providing quality-of-service or gradeof-service in packet networks is deciding when or in what order the incoming packets should depart the system. In other words the departing packets have to be somehow scheduled. Implementing this sche...

BACKGROUND Men, much like women, are faced with age-related menopause-like symptoms as they age. In recent years, increasing attention has been drawn to clinical research into elderly men and their health-related quality of life. The Aging Male Scales (AMS) questionnaire is an international tool for assessing the health-related quality of life in elderly men. Hence far this questionnaire has no...

BACKGROUND Infertility and its treatment can have a considerable effect on a person's quality of life (QoL). The Fertility QoL (FertiQoL) questionnaire is currently the most frequently used instrument to measure QoL in people with fertility problems. This study aims to examine the reliability and validity of the FertiQoL in infertile Iranian women. MATERIALS AND METHODS This cross-sectional s...

due to the importance of “service quality and customerssatisfaction” subject, this study seeks to investigate and prioritize thefactors which are effective on service quality and customers satisfactionusing grey relational analysis (gra) method. in the case of statisticalpopulations with large sizes, none of the other methods can competewith gra from the viewpoint of calculation accuracy. the s...