Concepedia
Statistics
Publications
14
Citations
323
H-Index
12
Active since
1974
Affiliations
Niigata University(Current)
Niigata Institute of Technology
Hisaaki Iwasawa is an author at Niigata University specializing in life sciences, zoology, and biology.
Publications per year
1974–1996
Normal Stages of Development of a Hynobiid Salamander, <i>Hynobius nigrescens</i> Stejneger
Hisaaki Iwasawa, Kaoru Yamashita · Japanese journal of herpetology · 1991 · 78 citations · Full text
Life Sciences, Biology, Zoology +7
Ultrastructural Observations on the Origin and Differentiation of Somatic Cells during Gonadal Development in the Frog <i>Rana nigromaculata</i>
Akihiko Tanimura, Hisaaki Iwasawa · Development Growth & Differentiation · 1988 · 31 citations · Full text
Life Sciences, Developmental Biology, Zoology +16
Origin of somatic cells and histogenesis in the primordial gonad of the Japanese tree frog Rhacophorus arboreus
Akihiko Tanimura, Hisaaki Iwasawa · Anatomy and Embryology · 1989 · 31 citations
Life Sciences, Biology, Zoology +16
17 alpha,20 alpha-Dihydroxy-4-pregnen-3-one is the naturally occurring spermiation-inducing hormone in the testis of a frog, Rana nigromaculata.
Tohru Kobayashi, Norihiro Sakai, Sosuke Adachi et al. · Endocrinology · 1993 · 26 citations
Life Sciences, Biochemistry, Biology +17
Seasonal Changes in Body Shape and Mass in the Salamander, Hynobius nigrescens
Masato Hasumi, Hisaaki Iwasawa · Journal of Herpetology · 1990 · 21 citations
Life Sciences, Animal Sciences, Ecology +8
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