To determine the phylogenetic position of two new rickettsial strains isolated from ticks in China, 16S ribosomal DNA, gltA, and ompA (apart from the tandem repeat units) genes were amplified by PCR and sequenced. The phylogenetic relationships between these strains and other rickettsiae were inferred from the comparison of sequences of the three genes by the parsimony, neighbor-joining, and ma...

introduction public transportation system is the perfect solution to organize transportation in the city. this system reduces the demand for private car or taxi area provides economic savings. public transport will not only reduce the use of private vehicles, but it will reduce traffic and air pollution. the public transportation system of buses to be extremist as one of the most efficient publ...

We present a new algorithm based on the iterative spectral fitting technique for direct retrieval of nitrogen dioxide (NO2) vertical columns from hyperspectral satellite measurements, and a new spatial technique for separating the stratospheric and tropospheric contributions to the total NO2 vertical columns. This direct vertical column fitting (DVCF) algorithm allows more complete treatment of...

Department of Electronic Engineering, Chang Gung University, Kweishan, Taoyuan 333, Taiwan Department of Physics, University of Central Florida, Orlando, FL32816, U.S.A. Institute of Electro-optical Engineering, Chang Gung University, Kweishan, Taoyuan 333, Taiwan Biosensor Group, Biomedical Engineering Research Center, Chang Gung University, Kweishan, Taoyuan 333, Taiwan Green Technology Resea...

Abstract Introduction Narcolepsy type 1 is caused by selective loss of orexinergic neurons, resulting in poor maintenance sleep and wakefulness, emergence cataplexy. Orexinergic neurons innervate many brain regions, specific narcolepsy symptoms likely arise from dysfunction distinct regions. Orexin 2 receptors (OX2R) are expressed nearly all wake- REM sleep-regulatory OX2R agonists improve mous...

Our purpose was to determine whether exposure to a realistic concentration of nitrogen dioxide (NO2) could increase the bronchial sensitivity of asthmatic patients to bronchoconstrictor agents. We established dose-response curves for changes in specific airway resistance (SRaw) in response to aerosolized carbachol in 20 asthmatics after each had spent 1 h in an exposure chamber breathing on one...

In the past decades, continuous efforts have been made at a national level to reduce Nitrogen Dioxide (NO2) emissions in the atmosphere over China. However, public concern and related research mostly deal with tropospheric NO2 columns rather than ground-level NO2 concentrations, but actually ground-level NO2 concentrations are more closely related to anthropogenic emissions, and directly affect...

In the Southern Ocean, the nitrogen (N) isotopes of organic matter and the N and oxygen (O) isotopes of nitrate (NO3 ) have been used to investigate NO3 assimilation and N cycling in the summertime period of phytoplankton growth, both today and in the past. However, recent studies indicate the significance of processes in other seasons for producing the annual cycle of N isotope changes. This s...