5,456 research outputs found
Complementary and Alternative Medicine (CAM) Therapies in the Treatment of Meniere's Syndrome: Illness Narratives
Colonnade interior, glass wall, from above, depicting brise-soleil; The building today commonly referred to as the Old City Hall was the building that served as Ottawa's city hall from 1958 to 2000. Today it is officially known as 111 Sussex Drive and is owned by the Federal Government of Canada. The building is located on Green Island at the point where the Rideau River empties into the Ottawa. The International Style building was opened on August 2, 1958 by Princess Margaret as a member of the Canadian Royal Family. It is noted for the first building in Ottawa to be fully air conditioned. It was designed by John Bland of the firm of Rother, Bland and Trudeau and is considered one of the most important International Style buildings in Canada. Winning the Massey Medal for design in 1959, modifications were made by Moshe Safdie in 1992-1993. Today the building mainly houses foreign affairs employees. Source: Wikipedia; http://en.wikipedia.org/wiki/Main_Page (accessed 1/10/2008
Exploring the evidence base for acupuncture in the treatment of Meniere’s Syndrome — A systematic review
Meniere’s syndrome is a long-term, progressive disease that damages the balance and hearing
parts of the inner ear. To address the paucity of information on which evidence-based treatment
decisions should be made, a systematic review of acupuncture for Meniere’s syndrome was
undertaken. The method used was a systematic review of English and Chinese literature, from
six databases for randomized, non-randomized and observational studies. All studies were
critically appraised and a narrative approach to data synthesis was adopted. Twenty-seven
studies were included in this review (9 in English and 18 in Chinese languages): three randomized
controlled trials, three non-randomized controlled studies and four pre-test, post-test
designs. All but one of the studies was conducted in China. The studies covered body acupuncture,
ear acupuncture, scalp acupuncture, fluid acupuncture point injection and moxibustion.
The studies were of varying quality. The weight of evidence, across all study types, is of beneficial
effect from acupuncture, for those in an acute phase or those who have had Meniere’s
syndrome for a number of years. The review reinforces the importance of searching for studies
from English and Chinese literature. The transferability of the findings from China to a
Western context needs confirmation. Further research is also needed to clarify questions
around the appropriate frequency and number of treatment/courses of acupuncture. The
weight of evidence suggests a potential benefit of acupuncture for persons with Meniere’s
disease, including those in an acute phase and reinforces the importance of searching for
published studies in the Chinese language
Profitability of contrarian strategies in the Chinese stock market
This paper reexamines the profitability of loser, winner and contrarian
portfolios in the Chinese stock market using monthly data of all stocks traded
on the Shanghai Stock Exchange and Shenzhen Stock Exchange covering the period
from January 1997 to December 2012. We find evidence of short-term and
long-term contrarian profitability in the whole sample period when the
estimation and holding horizons are 1 month or longer than 12 months and the
annualized returns of contrarian portfolios increases with the estimation and
holding horizons. We perform subperiod analysis and find that the long-term
contrarian effect is significant in both bullish and bearish states while the
short-term contrarian effect disappears in bullish states. We compare the
performance of contrarian portfolios based on different grouping manners in the
estimation period and unveil that decile grouping outperforms quintile grouping
and tertile grouping, which is more evident and robust in the long run.
Generally, loser portfolios and winner portfolios have positive returns and
loser portfolios perform much better than winner portfolios. Both loser and
winner portfolios in bullish states perform better than those in the whole
sample period. In contrast, loser and winner portfolios have smaller returns in
bearish states in which loser portfolio returns are significant only in the
long term and winner portfolio returns become insignificant. These results are
robust to the one-month skipping between the estimation and holding periods and
for the two stock exchanges. Our findings show that the Chinese stock market is
not efficient in the weak form. These findings also have obvious practical
implications for financial practitioners.Comment: 24 pages (including 4 figures and 9 tables) + 5 supplementary figures
+ 10 supplementary table
Time-varying return predictability in the Chinese stock market
China's stock market is the largest emerging market all over the world. It is
widely accepted that the Chinese stock market is far from efficiency and it
possesses possible linear and nonlinear dependence. We study the predictability
of returns in the Chinese stock market by employing the wild bootstrap
automatic variance ratio test and the generalized spectral test. We find that
the return predictability vary over time and significant return predictability
is observed around market turmoils. Our findings are consistent with the
Adaptive Markets Hypothesis and have practical implications for market
participants.Comment: 11 Latex pages including 2 figures and 1 tabl
Godel Universe from String Theory
G\"odel universe is a direct product of a line and a three-dimensional
spacetime we call G. In this paper, we show that the G\"odel metrics
can arise as exact solutions in Einstein-Maxwell-Axion, Einstein-Proca-Axion,
or Freedman-Schwarz gauged supergravity theories. The last allows us to embed
G\"odel universe in string theory. The ten-dimensional spacetime is a direct
product of a line and the nine-dimensional one of an bundle
over G, and it can be interpreted as some decoupling limit of the
rotating D1/D5/D5 intersection. For some appropriate parameter choice, the
nine-dimensional metric becomes an AdS bundle over squashed
3-sphere. We also study the properties of the G\"odel black holes that are
constructed from the double Wick rotations of the G\"odel metrics.Comment: latex, 20 pages, discussion on null-energy condition included, typos
corrected and references adde
An SMDP-based Resource Management Scheme for Distributed Cloud Systems
In this paper, the resource management problem in geographically distributed
cloud systems is considered. The Follow Me Cloud concept which enables service
migration across federated data centers (DCs) is adopted. Therefore, there are
two types of service requests to the DC, i.e., new requests (NRs) initiated in
the local service area and migration requests (MRs) generated when mobile users
move across service areas. A novel resource management scheme is proposed to
help the resource manager decide whether to accept the service requests (NRs or
MRs) or not and determine how much resources should be allocated to each
service (if accepted). The optimization objective is to maximize the average
system reward and keep the rejection probability of service requests under a
certain threshold. Numerical results indicate that the proposed scheme can
significantly improve the overall system utility as well as the user experience
compared with other resource management schemes.Comment: 5 pages, 5 figures, conferenc
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