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This paper proposes a novel CT image coding concept named LOI which stands for level of interest and coding methods based on that concept. The well-known ROI (region of interest) coding gives priority to pixels in particular regions of an image when encoding or decoding the image. Similarly, LOI coding gives priority to the pixels having a particular pixel(More)
Trypanocidal constituents of the fruits of Vitex trifolia were investigated. Activity-guided isolation of the acetone extract resulted in the isolation of two new norditerpene aldehydes, 1 and 2, together with five known diterpenes: vitexifolin E (3), vitexifolin F (4), vitexilactone (5), 6-acetoxy-9-hydroxy-13(14)-labden-16,15-olide (6), and(More)
Trypanocidal constituents of Pogostemon cablin were investigated. Activity guided isolation of the acetone extract resulted in isolation of three new sesquiterpene hydroperoxides 1-3, together with a known sesquiterpene, patchouli alcohol (4). In vitro minimum lethal concentrations of the hydroperoxides 1-3 against epimastigotes of Trypanosoma cruzi were(More)
In this paper, we propose a human activity recognition method from first-person videos, which provides a supplementary method to improve the recognition accuracy. Conventional methods detect objects and derive a user's behavior based on their taxonomy. One of the recent works has achieved accuracy improvement by determining key objects based on hand(More)
OBJECTIVES We have developed a sol particle immunoassay (SPIA) for measuring serum cystatin C, an endogenous marker of glomerular filtration rate (GFR). DESIGN AND METHODS We used colloidal gold particles coated with anti-cystatin C antibodies. RESULTS The assay was linear in the range 0.2 to 8 mg/L and showed good correlation between theoretical and(More)
This paper investigates substrate noise influence on circuit performance in a variable threshold-voltage scheme (VT scheme) where threshold voltage is dynamically varied by substrate-bias control to reduce active power dissipation. It is experimentally examined that substrate-bias can be controlled stably with very few substrate-contacts. Measured tracking(More)
This paper presents UTMesh -- a test bed for wireless mesh networking and delay (or disruption) tolerant networking developed in the University of Tokyo. We have customized 51 embedded Linux computers for experiment-oriented use cases, and let them powered by rechargeable batteries in order to flexibly deploy everywhere depending on the experiment(More)
Three gelatinolytic proteases (A1, A2, and B) were purified using a synthetic substrate, DNP-Pro-Gln-Gly-Ile-Ala-Gly-Gln-d-Arg, from the hepatopancreas of Northern shrimp (Pandalus eous) by several chromatographic steps involving hydroxyapatite column chromatography, gel filtration on Superdex75, and ion-exchange chromatography on a MonoQ column.(More)