Biosphere Resource Science and Technology Graduate School of Life and Environmental Science, University of Tsukuba, Tsukuba, Japan
Biosphere Resource Science and Technology Graduate School of Life and Environmental Science, University of Tsukuba, Tsukuba, Japan;
Division of Health Sciences, Graduate School of Technology and Science, Tsukuba University of Technology, Tsukuba, Japan.
Copyright © 2014 Kazuyo Hanyu, Kenji Tamura, Hidetoshi Mori et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.
How to Cite this Article
K. Hanyu, K. Tamura and H. Mori, "Changes in Heart Rate Variability and Effects on POMS by Whether or Not Soil Observation Was Performed,"
Open Journal of Soil Science, Vol. 4 No. 1, 2014, pp. 36-41. doi:
10.4236/ojss.2014.41005.