A5012124756- Pacific and Southeast Asian Studies
- Pleistocene-Era Hominins and Archaeology
- Geology and Paleoclimatology Research
- Archaeology and ancient environmental studies
- Maritime and Coastal Archaeology
- Forensic Anthropology and Bioarchaeology Studies
- Methane Hydrates and Related Phenomena
- Isotope Analysis in Ecology
- Genomics and Chromatin Dynamics
- Forensic and Genetic Research
- Underwater Vehicles and Communication Systems
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Robotic Locomotion and Control
- Lipid Membrane Structure and Behavior
- 3D Surveying and Cultural Heritage
- Genomics and Phylogenetic Studies
- Underwater Acoustics Research
- Paleopathology and ancient diseases
- earthquake and tectonic studies
- Chromosomal and Genetic Variations
- Prosthetics and Rehabilitation Robotics
- Advanced Computational Techniques and Applications
- Antimicrobial Peptides and Activities
- Robotics and Sensor-Based Localization
- Acne and Rosacea Treatments and Effects
Okinawa Prefectural Education Center
2018-2023
University of the Ryukyus
2016-2022
Hokkaido University
1988-2022
Institute of Global Environment and Society
2020
Shiseido Group (Japan)
2016
Okinawa Prefectural Museum
2012-2016
Okinawa Prefecture
2016
Osaka Prefectural Board of Education
2015
Chiba Institute of Technology
2000-2002
Significance Moving into oceanic islands after c. 50,000 years ago was a remarkable step forward in the history of worldwide expansion modern humans. However, developmental process Pleistocene maritime technology remains unclear. So far, only secure sources information for such discussions were Indonesian Archipelago and northern New Guinea as steppingstones from Asian continent to Australia. This article reports successful adaptation that extended ∼35,000 13,000 on small island environment...
Abstract Previous research indicates that human genetic diversity in Wallacea—islands present-day Eastern Indonesia and Timor-Leste were never part of the Sunda or Sahul continental shelves—has been shaped by complex interactions between migrating Austronesian farmers indigenous hunter–gatherer communities. Yet, inferences based on groups proved insufficient to disentangle this region’s demographic movements admixture timings. Here, we investigate spatio-temporal patterns variation Wallacea...
Nine human remains were recovered from Shiraho-Saonetabaru Cave on Ishigaki Island, Okinawa Prefecture, Japan, between 2007 and 2009. Six of the nine samples produced well-preserved biogenic collagen, which was submitted to radiocarbon dating by accelerator mass spectrometry. Three (Nos. 2, 4, 8) fossil chamber dated 16 20 ka BP, can clearly be assigned Late Pleistocene. One animal bone same treated measured for independently also great antiquity (c. 12 BP). These dates are first concrete...
Maritime migration and island adaptation by anatomically modern humans (AMH) are among the most significant current issues in Southeast Asian archaeology directly related to their behavioural technological advancement. In center of this research hotspot Wallacean islands, situated between Pleistocene landmasses Sunda Sahul. Two major routes have been suggested for initial maritime from via Wallacea into Sahul, a northern route region New Guinea southern leading Australia. Here, we report...
We have been able to induce sperm nuclear decondensation in the mussel Mytilus californianus (mollusc) using either egg extracts or pure nucleoplasmin from Xenopus (amphibian). The involves removal of basic proteins (SNBPs) which bind nucleoplasmin. An attempt has made isolate an ooplasmic factor with a similar sperm-chromatin decondensing activity. acidic, thermostable protein molecular mass 58,000 purified and partially characterized.
Background Facial skin pigmentation is one of the most prominent visible features aging and often affects perception health beauty. To date, facial has been evaluated using various image analysis methods developed for cosmetic esthetic fields. However, existing cannot provide precise information on pigmented spots, such as variations in size, color shade, distribution pattern. The purpose this study development evaluation to analyze individual spots acquire detailed their age‐related...
Abstract There are various autoimmunogenic antigens (AIs) in testicular germ cells (TGCs) recognized as foreign by the body’s immune system. However, there is little information of TGC-specific AIs being available. The aim this study to identify AIs. We have previously established that immunization using viable syngeneic TGC can also induce murine experimental autoimmune orchitis (EAO) without any adjuvant. This liquid chromatography–tandem mass spectrometry analysis, followed...
Only a small number of islands were colonized by Homo sapiens during the Pleistocene. One such island group is Ryukyu Archipelago located between Kyushu and Taiwan. The Minotogawa Fissure site, on Okinawa in Archipelago, known for well-preserved late Pleistocene fossil remains that unearthed 1960s. In addition, eight Paleolithic sites four other possible ones have been identified Central Ryukyus (Amami Archipelagos) last decades. Were these groups direct ancestors modern peoples who...
The USS Emmons, a 106m US Navy Gleaves-class destroyer minesweeper that sank in 40m of water off Okinawa Island, Japan after kamikaze attack 1945, is used as case study for examining the history, multivocal significance, and heritage management World War II naval battle site. A baseline record site was made using an innovative method incorporating precise control points obtained from high-resolution multibeam echosounding bathymetry to generate 3D models structure-from-motion photogrammetry....
The Yarabuoki underwater site contains seven iron grapnel anchors and Early Modern Okinawan ceramic jars is dated to the 16th–19th centuries. lies at a depth of 12–32 m off western coast Ishigaki Island in Okinawa, Japan. Based on archaeological broadband multibeam surveys, as well historical research artefacts Ryukyuan shipping, we discuss possible anchor vessel types Ryukyu Eastern Asia times. We also efficacy low-cost ROV for assisting surveys shallow-water environments value educational...
Amino acid analyses of nuclear basic proteins an anuran amphibian, Rana catesbeiana, revealed that they are comprised a full set core histones and three types lysine-rich, sperm-specific proteins. On the basis their amino-acid compositions partial sequences trypsin-resistant cores, could be defined as members histone H1 family. Both micrococcal nuclease digestion electron microscopy indicated sperm chromatin consists nucleosomal fibrillar DNA structures which irregularly interspersed with...
Abstract The antigenic relationship of the egg jelly coat glycoproteins from Bufo japonicus and Xenopus laevis was investigated using agar double diffusion methods. presence ligands in coats for cortical granule lectin X. l. eggs also investigated. Anti‐jelly serum both anuran species crossreacted with other precipitin patterns identity. Each contained two lectin. Although different appeared to react a pattern identity, were antigenically distinguishable anti ‐ serum. observations that...
石垣島・白保竿根田原洞穴遺跡からは保存のよい4個体を含めて20個体近い更新世人骨が出土している。このうち,現地調査最終盤に出土し,保存状況も最良の白保4号個体の頭骨について,実物の骨をできるだけ接合したのちに,X線CT撮影により3次元形状データを取得してデジタル形状データとして全体を復元した。その結果,鼻根部の強い陥凹や,顔高が低く額が幅広であるなどの特徴が明らかになった。さらに実物の頭骨で直接測った計測値とデジタル復元結果を利用して求めた計測値を合わせて,予備的な形態解析を実施したところ,白保4号頭蓋の形態は,日本列島の旧石器時代人や縄文時代人,そして中国南部やベトナムなど琉球列島よりもさらに南方系の先史時代の人々に近いことが示唆された。デジタル復元した頭骨をもとにして生前の顔貌の復元を試みたので,その経過と復元結果についても報告する。
In this paper, we propose an observation support system of a Remotely Operated Vehicle (ROV) for underwater archaeology. general, it is difficult unskilled users to drive ROV because camera mounted on always moves due external disturbances and objects easily move out the field view (FOV) camera. Once object FOV, cannot find again. The used help ROV. To realize proposed system, detection based image processing key component. We apply SURF (Speeded Up Robust Features) algorithm detect...
2012~2013年に沖縄県南城市サキタリ洞遺跡調査区IのII層(約16400~19300 BP[未較正])を発掘し,人骨2点(臼歯1点と舟状骨1点)とともに39点の断片化した海産貝類を検出した。先に報告したI層出土のものと合わせ,計47点にのぼる海産貝類は,人為的に遺跡近辺に運搬され,埋没したものと考えられる。II層由来のマルスダレガイ科(マツヤマワスレ[Callista chinensis]・ハマグリ類[Meretrix sp. cf. lusoria]),クジャクガイ[Septifer bilocularis],ツノガイ類["Dentalium"...
Abstract Previous research indicates that the human genetic diversity found in Wallacea - islands present-day Eastern Indonesia and Timor-Leste were never part of Sunda or Sahul continental shelves has been shaped by complex interactions between migrating Austronesian farmers indigenous hunter-gatherer communities. Here, we provide new insights into this region’s demographic history based on genome-wide data from 16 ancient individuals (2600-250 yrs BP) North Moluccas, Sulawesi, East Nusa...
2009年度から2011年度にかけて沖縄県南城市サキタリ洞遺跡(調査区I)で発掘調査を実施し,縄文時代中期の遺物を含むフローストーン(FS層)の下に,第I層から第III層まで約2 mに及ぶ堆積が確認された。各層より得られた炭化物について放射性炭素年代測定を実施したところ,第I層上部では12445 ± 40BP,12475 40BP,第II層では16370 60BP,16910 60BP,19260 70BP,19340 50BP,第III層では24410 70BP,32650 130BPの年代値が得られ,更新世末の堆積であることが判明した。また,第I層上部より,非現地性の海産貝や石器と考えられる石英片3点とともにヒト右上顎乳犬歯1点が出土した。