Publications by authors named "Ryo Fukuzawa"
Article Synopsis
- Researchers collected macroalgal samples from various coastal waters in Japan and identified 32 non-motile dinoflagellate-like protist strains, classifying them into three new phylotypes within the genus Alexandrium.
- Molecular analysis indicated that the three types closely relate to the species A. ostenfeldii, and most strains were non-motile with an average diameter of 35 to 39 µm, exhibiting different distributions in water depths.
- Despite showing lethal toxicity to mice, the strains did not produce any tested toxins associated with paralytic shellfish poisoning, marking this as the first study to find Alexandrium linked to marine macroalgae in Japan.
J Biomed Opt
November 2011
Article Synopsis
- This study examines how optode calibration affects the quality of images produced by time-domain diffuse optical tomography (DOT) by incorporating coupling coefficients into reconstruction algorithms.
- Previous research showed that these coefficients help reduce artifacts caused by changes in optode coupling in other DOT types, like continuous wave and frequency-domain.
- The use of the modified algorithm led to clearer absorption coefficient images in various tests, confirming that including coupling coefficients effectively minimizes artifacts in time-domain DOT imaging.
