Hiroshi H. Hasegawa

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There are various recommendations by many coaches regarding foot landing techniques in distance running that are meant to improve running performance and prevent injuries. Several studies have investigated the kinematic and kinetic differences between rearfoot strike (RFS), midfoot strike (MFS), and forefoot strike (FFS) patterns at foot landing and their(More)
After the accident of the Fukushima 1 Nuclear Power Plant in March 2011, radioactive cesium was released and paddy fields in a wide area including Fukushima Prefecture were contaminated. To estimate the levels of radioactive Cs accumulation in rice produced in Fukushima, it is crucial to obtain the actual data of Cs accumulation levels in rice plants grown(More)
To understand the mechanisms of nitrate uptake by submerged vascular plants, a cDNA for a high-affinity nitrate transporter, NRT2, was isolated from Egeria densa, a submerged monocot. The deduced EdNRT2 protein was similar to the proteins of a conserved NRT2 group in higher plants. Real-time reverse transcription-PCR analysis revealed that after feeding(More)
The history of population structure is a key to effective wildlife management and conservation. However, inferring the history of population structure using present genetic structures is problematic when the method is applied to species that have experienced severe population bottlenecks. Ancient DNA analysis seemed to be a promising, direct method for(More)
SUMMARY HRTFs (head-related transfer functions) are available for sound field reproduction with spatial fidelity, since HRTFs involve the acoustic cues such as interaural time difference , interaural intensity difference and spectral cues that are used for the perception of the location of a sound image. Generally , FIR filters are used in the simulation of(More)
+ Abstract We propose a derivation of statistical laws from time series data analysis on the analogy of the thermodynamics. Recently, Sekimoto and Sasa reconstructed thermodynamics of systems, which are governed by the Langevin equations. We construct \thermodynamics" by applying their approach to the Auto Regressive type models, in which the random(More)
The major fractions of dissolved iron in seawater exist as a complex with organic ligands. A high bioavailability of iron bound to humic acid (HA) compared to the other model ligands, such as desferrioxamine B or ferrichrome, has been reported, which implies the importance of HA to control the geochemical behavior and the transfer of Fe to marine(More)