نتایج جستجو برای: 7697
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We discuss laser cooling opportunities in atomic erbium, identifying five J ? J + 1 transitions from the 4f126s2 3H6 ground state that are accessible to common visible and near-infrared continuous-wave tunable lasers. We present lifetime measurements for the 4f11(4Io 15/2)5d5/26s2 (15/2, 5/2)7o state at 11888 cm-1 and the 4f11(4Io 13/2)5d3/26s2 (13/2, 5/2)7o state at 15847 cm-1, showing values ...
1 RESEARCH ARTICLE 1 2 3 Cannabinoids reveal separate controls for whisking amplitude and 4 timing in rats 5 6 Maciej Dominik Pietr, Per Magne Knutsen, David I. Shore, Ehud Ahissar and Zvi Vogel 7 8 1 Department of Neurobiology, The Weizmann Institute of Science, 76100 Rehovot, Israel, 2 9 Department of Physics, University of California, San Diego, La Jolla, California 92093, 3 10 Department of...
This study examined characteristics of HIV-infected patients in the TREAT Asia HIV Observational Database who were lost to follow-up (LTFU) from treatment and care. Time from last clinic visit to 31 March 2009 was analysed to determine the interval that best classified LTFU. Patients defined as LTFU were then categorised into permanently LTFU (never returned) and temporary LTFU (re-entered late...
The proton pump (H+-ATPase) found in the plasma membrane of the fungus Neurospora crassa is inactivated by dicyclohexylcarbodiimide (DCCD). Kinetic and labeling experiments have suggested that inactivation at 0 degrees C results from the covalent attachment of DCCD to a single site in the Mr = 100,000 catalytic subunit (Sussman, M. R., and Slayman, C. W. (1983) J. Biol. Chem. 258, 1839-1843). I...
BACKGROUND Association between the C677T polymorphism of the methylene tetrahydrofolate reductase (MTHFR) gene and congenital heart disease (CHD) is contentious. METHODS AND RESULTS We compared genotypes between CHD cases and controls and between mothers of CHD cases and controls. We placed our results in context by conducting meta-analyses of previously published studies. Among 5814 cases wi...
An originally chaotic system can be controlled into various periodic dynamics. When it is implemented into a legged robot’s locomotion control as a central pattern generator (CPG), sophisticated gait patterns arise so that the robot can perform various walking behaviors. However, such a single chaotic CPG controller has difficulties dealing with leg malfunction. Specifically, in the scenarios p...
Objective: International pharmacoeconomic studies suggest that functional impairment can be a significant predictor for the evaluation of direct and productivity costs for rheumatoid arthritis (RA). We calculated the direct and productivity costs for five Health Assessment Questionnaire (HAQ) groups of patients (HAQ scores o0.6, 0.6 Z 1.1, 1.1 Z 1.6, 1.6 Z 2.1, and Z2.1) in the Czech Republic. ...
ErbB3/HER3 is one of four members of the human epidermal growth factor receptor (EGFR/HER) or ErbB receptor tyrosine kinase family. ErbB3 binds neuregulins via its extracellular region and signals primarily by heterodimerizing with ErbB2/HER2/Neu. A recently appreciated role for ErbB3 in resistance of tumor cells to EGFR/ErbB2-targeted therapeutics has made it a focus of attention. However, eff...
BACKGROUND Among the founding mitochondrial haplogroups involved in the peopling of the Americas, haplogroup C1d has been viewed as problematic because of its phylogeny and because of the estimates of its antiquity, apparently being much younger than other founding haplogroups. Several recent analyses, based on data from the entire mitochondrial genome, have contributed to an advance in the res...
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