A5023929616- Indoor Air Quality and Microbial Exposure
- Microbial Community Ecology and Physiology
- Atmospheric chemistry and aerosols
- Biofuel production and bioconversion
- Polar Research and Ecology
- VLSI and Analog Circuit Testing
- Embedded Systems Design Techniques
- Air Quality Monitoring and Forecasting
- Air Quality and Health Impacts
- Enzyme Production and Characterization
- Lignin and Wood Chemistry
- VLSI and FPGA Design Techniques
- CCD and CMOS Imaging Sensors
- Interconnection Networks and Systems
- Odor and Emission Control Technologies
- Enzyme-mediated dye degradation
- Semiconductor Lasers and Optical Devices
- Chromium effects and bioremediation
- Microbial Metabolic Engineering and Bioproduction
- Advanced Memory and Neural Computing
- Enzyme Catalysis and Immobilization
- Plant responses to elevated CO2
- Advancements in PLL and VCO Technologies
- Integrated Circuits and Semiconductor Failure Analysis
- Asthma and respiratory diseases
Hirosaki University
2017-2022
Kanazawa University
2007-2016
Kyushu Institute of Technology
1990-2006
Nagaoka University of Technology
2005
Kobe University
2002
Hitachi (Japan)
2000-2002
Nagaoka University
1984
Abstract. Aerosol particles, including airborne microorganisms, are transported through the free troposphere from Asian continental area to downwind in East Asia and can influence climate changes, ecosystem dynamics, human health. However, variations present bacterial communities over areas poorly understood, there few studies that provide an in-depth examination of effects long-range transport aerosols (natural anthropogenic particles) on variations. In this study, vertical distributions at...
The effects of consecutive treatments by a lignin-degrading fungus Phanerochaete chrysosporium and steam explosion for the enzymatic saccharification plant biomass were studied experimentally, optimal operational conditions obtaining maximum evaluated. Beech wood-meal was treated 98 days then high temperatures 170-230 degrees C with steaming times 0-10 min. treatment prior to enhanced wood-meal. separated into holo-cellulose, water soluble material, methanol lignin, Klason lignin. decreased...
The microbial communities transported by Asian desert dust (KOSA) events have attracted much attention as bioaerosols because the microorganisms are thought to influence downwind ecosystems in Korea and Japan. We analyzed bioaerosol samples collected at 10 800 m above ground within KOSA source area, Dunhuang City, China. were studied epifluorescent microscopy, revealing presence of bacterial cells attached mineral particles. able grow media containing up 20% NaCl, suggesting that bacteria...
Long-range transport of atmospheric microbiota with Asian dust (Kosa) particles is great concern in Northeast Asia view the health effect Kosa on human being, disturbance ecosystems caused through invasion new microbe, contribution microorganisms to biogeochemical cycle global/regional scales, and others. Information microbes over desert areas has been desired for a long time. Detection regions, base balloon-borne measurements, made at Dunhuang, China (40°00′ N, 94°30′ E; east end Taklamakan...
Alcohol fermentation of starch was investigated using a direct fermenting yeast, Saccharomyces cerevisiae SR93, constructed by integrating glucoamylase-producing gene (STA1) into the chromosome SH1089. The glucoamylase constitutively produced recombinant yeast. ethanol concentration yeast 14.3 g/L which about 1.5-fold higher than conventional mixed culture an amylolytic microorganism and microorganism. About 60% converted yield reached its maximum value 0.48 at initial 50 g/L. fed-batch...
Bjerkandera adusta (B. adusta) is one of the most important etiological fungi associated with chronic cough. However, precise details inflammatory response to exposure are not well understood yet. B. was recently identified in Asian sand dust (ASD) aerosol. Therefore, present study exacerbating effects ASD on adusta-induced lung inflammation and + ovalbumin (OVA)-induced murine eosinophilia were investigated using experimental mice. In order prepare testing samples, obtained from aerosol...
The dust event injects microorganisms into the atmosphere and could facilitate dispersal of biological particles affecting leeward ecosystem human health. In this study, dustborne in over Taklimakan Desert, Asian source, were identified by culture-independent method. Dusts collected using a balloon at about 800 m above ground an source region, Dunhuang. After DNA directly extracted from dusts filters, 16S 18S rRNA genes amplified, cloned, sequenced. rDNA sequence data indicated that include...
Abstract Although the lower size limit of microorganisms was previously believed to be c . 0.2 μm, there is evidence for existence that can pass through μm-pore-size filters called ultramicrobacteria or nanobacteria. However, information on phylogeny and biogeography these bacteria limited. We obtained 53 isolates μm-passable from 31 samples collected at 26 locations worldwide, including Arctic Svalbard Islands, deserts, Maritime Antarctica. Phylogenetic analysis near full-length 16S rRNA...