繊維学部研究紹介_2018_英語版
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50Department of Applied BiologyResearching human health and protection of the freshwater environment and analyzing water environment changes using aquatic insects as indicatorsWe are researching the relationship between the benthonic fauna of the freshwater environment (i.e., rivers, lakes, and marshes) and water qualities (trophic status). We use changes in the composition, densities and biomass of various species, and their role in the aquatic ecosystem to learn and monitor of the changes to the freshwater environment. We capture the signals given by aquatic organisms to learn about the current water environment and predict future trends.Professor Hirabayashi took his current position in 2007 after working as an associate professor at the Yamanashi Women's Junior College, and as an associate professor on the Faculty of Textile Science and Technology, Shinshu University. He has served on the academic sta at the University College of London in the UK and at the University of Melbourne in Australia. Research keywords include Applied Ecology, Freshwater Biology, Sanitary Zoology, and Environmental Hygiene.Coexisting with nature is a great challenge. We believe it is important to nd ways to do this by becoming highly knowledgeable about nature and living things. Why not become an environmental biologist?Outlook for researchOur graduates are active as researchers at research facilities for pharmaceutical companies, local public organizations, pest control companies, and water quality inspection companies, etc.Outlook for students after graduationChironomid larvae, Propsolocerus akamusi, used as an indicator of aquatic environments.Carrying out a survey of benthonic fauna by damming a portion of a river, as part of a joint project with the Public Works Research Institute of the Ministry of Land, Infrastructure, Transport and Tourism.Carrying out a survey of aquatic insects in the Azusa River, the Kamikochi Special Protected Zone, with permission from the Ministry of the Environment. (Background: Mt. Yakedake)Kimio HirabayashiProfessorDepartment of Applied BiologyUsing micromanipulation to study the mechanism of fertilization and preserve, regenerate, and utilize genetic resourcesMy lab studies physiological aspects of early events during fertilization in mammals as well as technical innovations involving the preservation and utilization of genetic resources. My students and I have published more than 100 research papers so far describing our research into haploid gametes (spermatozoa and oocytes) and diploid embryos from various mammalian species, including mice, rats, rabbits, cats, horses, buffalo, cattle, whales, and humans.Professor Hochi took his current position in 2008 after working as a researcher (1986 to 1992) at Snow Brand Milk Products Co. Ltd., as a visiting assistant professor (1992 to 1995) and visiting associate professor (1995 to 1996) at Obihiro University of Agriculture and Veterinary Medicine, and as an assistant professor (1996 to 1999) and associate professor (1999 to 2008) in the Faculty of Textile Science and Technology at Shinshu University. He is engaged in research on reproductive physiology, cryobiology, and developmental engineering in small experimental rodents, large domestic animals, and humans.Advanced reproductive technologies such as intracytoplasmic sperm injection and somatic cell nuclear transplantation made it possible to bring the mammoth back to life. Furthermore, we have recently established pluripotent stem cell lines in laboratory rats. If these ES or iPS cells could be dierentiated into functional gametes, the process would be the ultimate treatment for infertility.Outlook for researchGraduates are employed by pharmaceutical and food-related companies as well as national and local organizations (as public ocials). In what has become a recent trend, some skilled graduates work at human infertility clinics as potential embryologists.Outlook for students after graduationIntracytoplasmic injection of shhook-shaped rat sperm heads was dicult to achieve, but several clues helped us expand its application to freeze-dried spermatozoa.Micromanipulation enables us to handle not only oocytes with diameters of 100 to 120 μm, but also much smaller sperm cells.A microtubule network can be assembled from a centrosome of spermatozoon immediately after fertilization.Shinichi HochiProfessor

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