The complex Swift-Hohenberg equation models pattern formation arising from an oscillatory instability with a finite wave number at onset and finds applications in lasers, optical parametric oscillators, and photorefractive oscillators. We show that with real coefficients this equation exhibits two classes of localized states: localized in amplitude only or localized in both amplitude and phase....

University scientific research ability is an important indicator to express the strength of universities. In this paper, the evaluation of university scientific research ability is investigated based on the output of sci-tech papers. Four university alliances from North America, UK, Australia, and China, are selected as the case study of the university scientific research evaluation. Data comin...

Article history: Received 18 September 2014 Available online 4 November 2014 MSC: 49A50 49J45 58E12

When an agent can operate at diierent levels of autonomy, factors in the environment, the domain, and the goals of the agent innu-ence what level of autonomy the agent should exhibit. However, research into what metrics are appropriate and what environmental factors might justify changes in autonomy are scarce. This paper attempts to establish the relationships between uncertainty in the enviro...

The same forces that encouraged the expansion of managed care also brought about change in health maintenance organizations (HMOs). Using data from annual surveys of the Association of American Health Plans and other sources, this paper examines ten major changes in the HMO industry during the 1990s, including the growth of for-profit plans and the relative decline of nonprofits; the shift from...

scheduling has become an attractive area for artificial intelligence researchers. on other hand, in today's real-world manufacturing systems, the importance of an efficient maintenance schedule program cannot be ignored because it plays an important role in the success of manufacturing facilities. a maintenance program may be considered as the heath care of manufacturing machines and equip...

Most animals exhibit distinctive and diverse morphological features on their anterior-posterior body axis. However, underneath the variation in design and developmental strategies lies a shared ancient structural blueprint that is based on the expression patterns of Hox genes. Both the establishment and maintenance of the spatial and temporal distribution of Hox transcripts play an important ro...

OBJECTIVE To examine the costs and outcomes of infertility-related services in Massachusetts during a time of expanded use of assisted reproductive technology (ART). DESIGN Cost data were obtained from the Massachusetts Department of Insurance Rate-Setting Commission and 9 large group insurance plans for the period 1986-1993. Utilization and success rates of ART were examined, and the cost pe...

the Policy and Strategy Group at AARP. One of the missions of the Institute is to foster research and analysis on public policy issues of importance to mid-life and older Americans. This publication represents part of that effort. The views expressed herein are for information, debate, and discussion, and do not necessarily represent official policies of AARP. i Foreword Medicare has contracted...

OBJECTIVE Evaluation of the functional outcomes of patients undergoing an early rehabilitation protocol for critically ill patients from admission to discharge from the intensive care unit. METHODS A retrospective cross-sectional study was conducted that included 463 adult patients with clinical and/or surgical diagnosis undergoing an early rehabilitation protocol. The overall muscle strength...