منابع مشابه
Elizabeth C. Raff
Crawford and his colleagues describe an analysis of frog species in El Cope, Panama. “We discovered that 30 species were lost, including five undescribed species, representing 41 per cent of total amphibian lineage diversity in El Cope. The irony of increased species discovery coupled with enigmatic population declines in amphibians was recognised at least 10 years ago, “yet until now we have l...
متن کاملRelaxation along Fictitious Field (RAFF) Contrast in Bovine Articular Cartilage
T. Liimatainen, M. Nissi, M. T. Nieminen, S. Michaeli, M. Garwood, and O. Gröhn Department of Biotechnology and Molecular Medicine, University of Kuopio, Kuopio, Finland, Department of Physics, University of Kuopio, Kuopio, Finland, Department of Clinical Radiology, Kuopio University Hospital, Kuopio, Finland, Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland, Departme...
متن کاملMRI contrast from relaxation along a fictitious field (RAFF).
A new method to measure rotating frame relaxation and to create contrast for MRI is introduced. The technique exploits relaxation along a fictitious field (RAFF) generated by amplitude- and frequency-modulated irradiation in a subadiabatic condition. Here, RAFF is demonstrated using a radiofrequency pulse based on sine and cosine amplitude and frequency modulations of equal amplitudes, which gi...
متن کاملMartin Rama
Tunisia’s unemployment rate has been among the highest in the world for almost two decades. This article claims that such a high rate reflects measurement problems rather than labor market inefficiency. After discussing the reasons why unemployment rates may not be comparable across countries and reviewing the tools that are available to analyze unemployment in a specific country, the article p...
متن کاملRyan Martin
The focus of my research is extremal graph theory and random combinatorial structures. I have also worked in a variety of other areas, including intersecting hypergraphs, the theory of positional games and Ramsey theory. Combinatorics, and particularly graph theory, has a wide variety of applications. My own research in the edit distance of graphs has applications in biology and computer scienc...
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ژورنال
عنوان ژورنال: Cell Cycle
سال: 2003
ISSN: 1538-4101,1551-4005
DOI: 10.4161/cc.2.1.184