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Quantification of Annual Urban Growth of Dar es Salaam Tanzania from Landsat Time Series Data

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Advances in Remote Sensing 2017年第3期6卷 175-191页

作者： Kamara Emanuel Gombe ichio Asanuma Jong-Geol Park Graduate School of Informatics Tokyo University of Information Sciences Chiba Japan

The information on urban land cover distribution and its dynamics is useful for understanding urbanization and its impacts on the hydrological cycle, water management, surface energy balances, urban heat island, and biodiversity. This study utilizes machine learning, texture variables and spectral bands to quantify the urban growth annually. We used multi-temporal Landsat satellite image sets from 2007 to 2016 and Random Forest classification to map urban land-use in Dar es Salaam. We also applied Annual classification approach to detect the spatiotemporal patterns of urban areas. This approach improved classification accuracy and aided in understanding the urban land-use system dynamics operating in our study area. The results pointed out that, the total built-up areas have grown from 318 km2, 388.6 km2 and 634.7 km2 in 2007, 2012 and 2016 respectively. The built up areas growth rate is almost 8%, which makes Dar es Salaam be among the fastest growing cities in Africa. The results indicate that, combining spectral bands, texture variables (NDVI BCI, MNDWI) and annual classification map approach was sufficient to map the urban areas. The approach applied in this research provides a useful guide to the urban growth studies and may also serve as a tool for land management planners.

关键词： Random Forest Annual Classification Map Texture Analysis Dar es Salaam

Natural selection in vertebrate evolution under genomic and biosphere biases based on amino acid content: Primitive vertebrate hagfish (<i>Eptatretus burgeri</i>)

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Natural Science 2013年第2期5卷 221-227页

作者： Kenji Sorimachi Teiji Okayasu Shuji Ohhira Nobuhide Masawa ichio Fukasawa Center of Medical Informatics Dokkyo Medical University Tochigi Japan Department of Anatomic Diagnostic Pathology Dokkyo Medical University Tochigi Japan Department of Obstetrics and Gynecology Dokkyo Medical University Tochigi Japan Laboratory for International Environmental Health Dokkyo Medical University Tochigi Japan

Cluster analyses using the amino acid content predicted from the coding regions (13 genes) of complete vertebrate mitochondrial genomes as traits grouped selected vertebrates into two clusters, terrestrial and aquatic vertebrates. Exceptions were the hagfish (Eptatretus burgeri), thought to be an early ancestor of vertebrates, and the black spotted frog (Rana nigromaculata), which is terrestrial as an adult and aquatic as a larva. These two species fall into the terrestrial and aquatic clusters, respectively. Using the nucleotide (G, C, T and A) content in the coding and non-coding regions, and in the complete genome as traits, similar results were obtained but with some additional exceptions. In addition, phylogenetic analyses of 16S rRNA sequences produced a consistent result. The results of this study indicated that vertebrate evolution is controlled by natural selection under both an internal bias as a result of nucleotide replacement genomic rules, and an external bias caused by environmental biospheric conditions.

关键词： Natural Selection Vertebrate Evolution Complete Mitochondrial Genome Amino Acid Composition 16S rRNA Hagfish (Eptatretus burgeri)

Island Activities Detected by VIIRS and Validation with AIS

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Advances in Remote Sensing 2018年第3期7卷 171-182页

作者： ichio Asanuma Daisuke Hasegawa Takashi Yamaguchi Jong Geol Park Kenneth James Mackin Department of Informatics Tokyo University of Information Sciences Chiba Japan

A possibility to monitor the reclamation activities by remote sensing was discussed. The lights observed in the night time by Day Night Band (DNB) of Visible Infrared Imaging Radiometer Suite (VIIRS), ocean color observed in the day time by visible bands of VIIRS were the tools to monitor the surface activities, and the Automated Information System (AIS) was used to verify the types and number of vessels associated with the reclamation activities. The lights as the radiance from the surface were monitored by the object based analysis, where the object was defined as a radius of 5 km from the center of the Mischief Reef in the South China Sea (SCS). The time history of surface lights exhibited the increase of the radiance from January to May 2015 and the radiance was kept in the certain level to December 2016 with some variations. The ocean color, chlorophyll-a concentration as a proxy of sediments, showed an increase from February to June 2015 and returned to a low concentration in August 2015. According to the historical data of AIS, the number of dredgers has increased from February to August 2015 and the maximum number of dredgers was recorded in June 2015. The timing of increase of lights from surface, increase of chlorophyll-a concentration, and increase of number of vessels are consistent.

关键词： Dredging Reclamation VIIRS DNB Chlorophyll-a AIS

Evidence for the independent divergence of vertebrate and high C/G ratio invertebrate mitochondria from the same origin

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Natural Science 2012年第7期4卷 479-483页

作者： Kenji Sorimachi Teiji Okayasu Shuji Ohhira ichio Fukasawa Nobuhide Masawa Center of Medical Informatics Dokkyo Medical University Tochigi Japan Department of Anatomic Diagnostic Pathology Dokkyo Medical University Tochigi Japan Department of Obstetrics and Gynecology Dokkyo Medical University Tochigi Japan Laboratory for International Environmental Health Dokkyo Medical University Tochigi Japan

The examination of organelle nucleotide contents across a range of groups can provide insight into evolutionary history. We compared the nucleotide contents of a large number of vertebrate and high C/G ratio invertebrate mitochondria in both coding/non-coding regions and complete strands. For most nucleotides tested, high regression coefficients were obtained;when plotted with lines of best fit, G and T contents formed a cuneiform, and C and A contents overlapped. These findings suggest that vertebrate and high C/G ratio invertebrate mitochondria descended independently from the same origin.

关键词： Evolution Genome Mitochondria Nucleotide Contents Vertebrate Invertebrate

Endometrioid adenocarcinoma arising from abdominal wall endometriosis in the appendectomy scar: A case report

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Open Journal of Obstetrics and Gynecology 2013年第7期3卷 556-560页

作者： Masaru Hayashi Akiko Shoda Nobuaki Kosaka Masaru Kojima Nobuhide Masawa ichio Fukasawa Anatomic and Diagnostic Pathology Dokkyo Medical University Tochigi Japan Department of Obstetrics and Gynecology Dokkyo Medical University Tochigi Japan

We report a very rare case of endometrioid adenocarcinoma arising from abdominal wall endometriosis in the appendectomy scar. A 47-year-old woman visited the surgical department, since she had a gradually growing and painful tumor both in an appendectomy scar and at an umbilical site. She underwent appendectomy at age 18 years, and noticed the tumor at age 22 years. Partial tumor resection was performed in that department, and the pathology revealed endometrioid adenocarcinoma. She was referred to our department for radical therapy. Tumors in the both sites were dissected together with some swelling lymph nodes in our department. A pathological diagnosis of the tumor in the umbilical site showed only benign endometriosis. In contrast, the tumor in the appendectomy scar showed benign endometriosis, atypical endometriosis and well differentiated endometrioid adenocarcinoma. Resected lymph nodes also contained endometrioid adenocarcinoma, and were diagnosed as metastases. It was concluded that the endometrioid adenocarcinoma in the tumor of the appendectomy scar was a malignant transformation arising from abdominal wall endometriosis from the pathological findings. Since the operation, adjuvant and maintenance chemotherapy with paclitaxel and carboplatin had been administered for 3 years. She is free of disease 3.5 years after the operation.

关键词： Abdominal Wall Endometriosis Appendectomy Scar Malignant Transformation Endometrioid Adenocarcinoma

Structural study of receptor recognition mechanism of a mouse pheromone ESPl

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Structural study of receptor recognition mechanism of a mous...

一种新的病毒TTV,在产科和围产医学的临床意义

第十七届国际生物物理大会;第十二届中国生物物理大会

作者： Makoto Hirakane Sosuke Yoshinaga Toru Sato Yumi Soejima Sachiko Haga ichio Shimada Kazushige Touhara Hiroaki Terasawa Faculty of Life Sciences Kumamoto UniversityKumamotoJapan Graduate School of Agricultural and Life Sciences The University of TokyoTokyoJapan Graduate School of Pharmaceutical Sciences The University of TokyoTokyoJapan

Pheromones are species-specific chemical signals that regulate a wide range of social and sexual behaviours in many *** vomeronasal organ(VNO) detects the pheromonal information via vomeronasal sensory neurons(VSNs) in *** have identified a male-specific peptide ESPl(exocrine-gland-secreting peptide 1) secreted into tear fluids that stimulates female *** ESPl signal is received,the vomeronasal type 2

关键词： mouse pheromone ESP1 GPCR molecular recognition NMR

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中国产前诊断杂志（电子版） 2010年第4期2卷 48-49页

作者： Shihou H Michiyo I Kyoko O ichio F Hiroshi W 独协医院妇产科

目的:为了研究TTV(一种新的NMA病毒)在围产期对孕妇的危害,检查日本孕妇TTV的感染情况、孕妇肝功能(sALT/sAST)及其后代,包括回顾性和前瞻性研究。研究对象及方法:反复检测195名非携带HBV和HCV孕妇(NBCPW组),84名携带HBV和/或HCV孕妇(BC... 详细信息

目的:为了研究TTV(一种新的NMA病毒)在围产期对孕妇的危害,检查日本孕妇TTV的感染情况、孕妇肝功能(sALT/sAST)及其后代,包括回顾性和前瞻性研究。研究对象及方法:反复检测195名非携带HBV和HCV孕妇(NBCPW组),84名携带HBV和/或HCV孕妇(BCCPW组)以及TTV-DNA阴性孕妇(对照组)的TTV-DNA和肝功能。NBCPW组携带TTV孕妇分娩14个新生儿。

关键词：孕妇临床意义肝功能异常围产期病毒感染情况前瞻性研究新生儿产科携带状态

Production of Multi-Features Driven Nationwide Vegetation Physiognomic Map and Comparison to MODIS Land Cover Type Product

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Advances in Remote Sensing 2017年第1期6卷 54-65页

作者： Ram C. Sharma Keitarou Hara Hidetake Hirayama Ippei Harada Daisuke Hasegawa Mizuki Tomita Jong Geol Park ichio Asanuma Kevin M. Short Masatoshi Hara Yoshihiko Hirabuki Michiro Fujihara Ryutaro Tateishi Department of Informatics Tokyo University of Information Sciences Chiba Japan Center for Environmental Remote Sensing Chiba University Chiba Japan Graduate School of Informatics Tokyo University of Information Sciences Chiba Japan Foundation of River and Basin Integrated Communications Tokyo Japan Natural History Museum and Institute Chiba Japan Department of Regional Design Tohoku Gakuin University Sendai Japan Awaji Landscape Planning and Horticulture Academy University of Hyogo Hyogo Japan

Irrespective of several attempts to land use/cover mapping at local, regional, or global scales, mapping of vegetation physiognomic types is limited and challenging. The main objective of the research is to produce an accurate nationwide vegetation physiognomic map by using automated machine learning approach with the support of reference data. A time-series of the multi-spectral and multi-indices data derived from Moderate Resolution Imaging Spectroradiometer (MODIS) were exploited along with the land-surface slope data. Reliable reference data of the vegetation physiognomic types were prepared by refining the existing vegetation survey data available in the country. The Random Forests based mapping framework adopted in the research showed high performance (Overall accuracy = 0.82, Kappa coefficient = 0.79) using 148 optimum number of features out of 231 featured used. A nationwide vegetation physiognomic map of year 2013 was produced in the research. The resulted map was compared to the existing MODIS Land Cover Type (MCD12Q1) product of year 2013. A huge difference was found between two maps. Validation with the reference data showed that the MCD12Q1 product did not work satisfactorily in Japan. The outcome of the research highlights the possibility of improving the accuracy of the MCD12Q1 product with special focus on reference data.

关键词： Vegetation Physiognomy Multi-Spectral Topography MODIS Mapping Machine Learning Japan MCD12Q1