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| Registros recuperados: 18.055 | |
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| Rakesh Sharma; Suniket Fulzele; Kiran Shetty; Mandeep Sachdeva; Bruce R. Locke. |
| *Aim:* A rapid ultra high resolution ex vivo MRI imaging method was evaluated to visualize rat skin structure. The main objectives were:1.qualitative assessment of viable epidermis, hair, oil and fat-rich skin features by multi-contrast approach;2.achievement of spatial resolution up to 15 microns; 3.comparison of skin histology with MRI skin features obtained by 21 Tesla magnetic resonance imaging (MRI) imager. 

*Introduction:* The ultrawide bore 900 MHz magnet has high resolution NMR magnet has a central field of 21.1 T. The high resolution MRI technique has potential for both quantitative and non-invasive morphological evaluation at micrometer level. The MRI signal was sensitive to water protons and glycolipid... |
| Tipo: Poster |
Palavras-chave: Biotechnology. |
| Ano: 2008 |
URL: http://precedings.nature.com/documents/2639/version/1 |
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| Rakesh Sharma. |
| Superparamagnetic iron-oxide bound antimyoglobin (SPIOM) characteristics were analyzed at different pH. After injecting SPIOM in heart, ex vivo magnetic resonance microimaging (MRM) technique was used to visualize microvasculature of rat heart including cardiac arteries, veins, cordate tendons attached with valves. The measurement accuracy of ventricles, aorta, vasculature and dimensions of cordate tendons were close to coregistered histology measurements. |
| Tipo: Poster |
Palavras-chave: Biotechnology. |
| Ano: 2008 |
URL: http://precedings.nature.com/documents/2643/version/1 |
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| Guanjun Shen; Xing Gao; Bin Gao; Darryl Granger. |
| The chronological position of Peking Man, or Homo erectus pekinensis, has long been pursued, but has remained problematic due to lack of a suitable dating method^1-7^. Here we report cosmogenic ^26^Al/ ^10^Be burial dating of quartz sediments and artifacts from the lower strata of Zhoukoudian Locality 1 where the remains of early members of the Peking Man family were discovered. This study marks the first radioisotopic dating of any early hominin site in China beyond the range of mass spectrometric U-series dating. The weighted mean of six meaningful measurements, 0.75 +/-; 0.09 (0.11) Ma (million years), provides the best age estimate for lower cultural Layers ^7-10^. Together with previously reported U-series^3^ and paleomagnetic^4^ data, as well as... |
| Tipo: Manuscript |
Palavras-chave: Earth & Environment. |
| Ano: 2008 |
URL: http://precedings.nature.com/documents/2275/version/1 |
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| Registros recuperados: 18.055 | |
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