Takashi Nakata

ORCID: 0000-0002-6652-9447
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Research Areas
  • earthquake and tectonic studies
  • Seismology and Earthquake Studies
  • Geology and Paleoclimatology Research
  • Geological and Geochemical Analysis
  • Geological and Geophysical Studies
  • Landslides and related hazards
  • Earthquake and Disaster Impact Studies
  • Earthquake Detection and Analysis
  • Earthquake and Tsunami Effects
  • Methane Hydrates and Related Phenomena
  • Cardiac Imaging and Diagnostics
  • Cardiovascular Function and Risk Factors
  • Chemical Synthesis and Analysis
  • High-pressure geophysics and materials
  • Alzheimer's disease research and treatments
  • Seismic Waves and Analysis
  • Pulmonary Hypertension Research and Treatments
  • Fault Detection and Control Systems
  • Geological Modeling and Analysis
  • Protein Hydrolysis and Bioactive Peptides
  • Robotics and Sensor-Based Localization
  • Cardiovascular Effects of Exercise
  • Ultrasound and Hyperthermia Applications
  • 3D Surveying and Cultural Heritage
  • Chemical Synthesis and Reactions

Tohoku University
1978-2024

San Francisco VA Medical Center
2024

University of California, San Francisco
2024

Hirosaki University Hospital
2023

Himeji Medical Center
2023

Hiroshima University
2012-2022

Hirosaki University
2012-2022

Suzugamine Women's College
2022

Hyogo Brain and Heart Center
2022

Marymount University
2018

We present historical and geomorphological evidence of a regularity in earthquake recurrence at three different sites plate convergence around the Japan arcs. The shows that larger an is, longer is following quiet period. In other words, time interval between two successive large earthquakes approximately proportional to amount coseismic displacement preceding not earthquake. enables us, principle, predict approximate occurrence earthquakes. data set includes 1) document describing repeated...

10.1029/gl007i004p00279 article EN Geophysical Research Letters 1980-04-01

To provide a detailed record of relatively rare thrust surface rupture and examine its active tectonic implications, we have conducted field mapping the associated with 2005 M w 7.6 Kashmir earthquake. Despite difficulty arising from massive earthquake-induced landslides along rupture, found that typical pressure ridges warps extend northwestward for distance ∼70 km, northeast-side-up vertical separation up to ∼7 m. Neither main frontal nor boundary is responsible earthquake, but three...

10.1785/0120070073 article EN Bulletin of the Seismological Society of America 2008-03-26

The ∼2500 km long Himalayan arc has experienced three large to great earthquakes of M w 7.8 8.4 during the past century, but none produced surface rupture. Paleoseismic studies have been conducted last decade begin understanding timing, size, rupture extent, return period, and mechanics faulting associated with occurrence rupturing along Frontal Thrust (HFT) system India Nepal. previous limited about nine sites western two‐thirds HFT extending through northwest southern border We present...

10.1029/2009jb006789 article EN Journal of Geophysical Research Atmospheres 2010-12-01

It has demonstrated that the recognition of triacylated lipopeptides by Toll-like receptor (TLR) 2 requires TLR1 as a coreceptor. In NF-kappaB reporter assay system in which human embryonic kidney 293 cells were transfected with TLR2 and together an luciferase gene, S-(2,3-bispalmitoyloxypropyl)-N-palmitoyl-Cys-Lys-Lys-Lys-Lys (Pam(3)CSK(4)) Pam(3)CSSNA recognized TLR2/TLR1, but level was unexpectedly very low. However, cotransfection CD14 drastically enhanced TLR2/TLR1. The CD14-induced...

10.1111/j.1462-5822.2006.00756.x article EN Cellular Microbiology 2006-07-11

Numerous newly-identified traces of active faults in the Himalayan foothill zone along HFF around Chandigarh, Pinjore Dun, piedmont Lower Siwalik hill front and within Tertiary range reveal pattern thrust strike-slip faulting, striking parallel to principal structural trend (NNW-SSE) orogenic belt. The Chandigarh Fault, Garden Fault Barsar have vertically dislocated, warped backtilted fluvial alluvial-fan surfaces made up Late Pleistocene-Holocene sediments. West- southwest-facing fault...

10.4401/ag-3462 article EN cc-by Annals of Geophysics 2009-12-18

Abstract Background There is little information regarding the clinical behaviour of hilar cholangiocarcinoma after curative resection. Methods A retrospective study was undertaken 79 consecutive patients with who had undergone major hepatectomy (three or more Couinaud segments) concomitant caudate lobectomy, and negative resection margins. Sites initial disease recurrence were classified as locoregional (porta hepatis) distant (intrahepatic, peritoneal, para-aortic lymph nodal...

10.1002/bjs.6788 article EN cc-by British journal of surgery 2009-11-24

Abstract Since the treatment window of thrombolytic therapy for stroke is limited, new remains to be developed. We have recently developed low-intensity pulsed ultrasound (LIPUS) improve cognitive dysfunction in mouse models vascular dementia and Alzheimer’s disease. Here, we further aimed examine whether our LIPUS improves neurological recovery from ischemic stroke, if so, elucidate mechanisms involved. In a model middle cerebral artery occlusion (MCAO), applied (32 cycles, 193 mW/cm 2 )...

10.1038/s41598-021-84473-6 article EN cc-by Scientific Reports 2021-03-02

Heart failure with preserved left ventricular ejection fraction (HFpEF) is a serious health problem worldwide, as no effective therapy yet available. We have previously demonstrated that our low-intensity pulsed ultrasound (LIPUS) and safe for angina dementia. In this study, we aimed to examine whether the LIPUS also ameliorates cardiac diastolic dysfunction in mice.

10.1093/cvr/cvaa221 article EN Cardiovascular Research 2020-07-14

The prevalence of Alzheimer's disease (AD) has been rapidly increasing worldwide. We have developed a novel angiogenic therapy with low-intensity pulsed ultrasound (LIPUS), which is effective and safe in animal models AD vascular dementia. performed two trials LIPUS for (mild cognitive impairment due to mild AD); roll-in open trial safety, randomized, double-blind, placebo-controlled (RCT) efficacy safety. was whole brain through the bilateral temporal bones one hour 3 times week as session...

10.1620/tjem.2022.j078 article EN The Tohoku Journal of Experimental Medicine 2022-01-01

Research Article| September 01, 2008 Long recurrence interval of faulting beyond the 2005 Kashmir earthquake around northwestern margin Indo-Asian collision zone Hisao Kondo; Kondo * 11Active Fault Center, AIST (National Institute Advanced Industrial Science and Technology), Geological Survey Japan, Central 7, 1-1-1 Higashi, Tsukuba 305-8567, Japan *E-mail: kondo-h@aist.go.jp. Search for other works by this author on: GSW Google Scholar Takashi Nakata; Nakata 22Faculty Environmental Studies,...

10.1130/g25028a.1 article EN Geology 2008-01-01

Fault scarps and uplifted terraces in young alluvium are frequent occurrences along the trace of northerly dipping Himalayan frontal thrust (HFT). Generally, it was expected that 25 April 2015 M  7.8 Gorkha earthquake Nepal would produce fresh fault trace. Contrary to expectation, Interferometric Synthetic Aperture Radar aftershock studies soon indicated rupture HFT confined subsurface, terminating on order 50 km north HFT. We undertook a field survey faults lineaments within Kathmandu...

10.1785/0220150135 article EN Seismological Research Letters 2015-10-28

The Pyramid Lake fault zone (PLFZ) is a 50‐km‐long, active northwest‐trending right‐lateral in the northern Walker Lane, located ∼30  km east of Reno, Nevada. Previous paleoearthquake and slip‐rate studies report that has produced four surface‐rupturing paleoearthquakes since 15,475±720  cal B.P., three which occurred after 8980±260  cal B.P., had an average minimum slip rate 2.6±0.3  mm/yr late Pleistocene. These observations imply coseismic offset for each averaged 7–9 m, larger than...

10.1785/0120150144 article EN Bulletin of the Seismological Society of America 2016-02-02

Distinctive ruptures of the surface faulting which generated destructive 1995 Hyogoken-Nanbu Earthquake (Ms=7.2) appeared along Nojima fault, an active fault on northwestern coast Awaji island, Japan. The in island extend southwestward continuously for about 9km from Easki near epicenter to Toshima Hokudan town, and caused prominent right-latearl off-sets 1.9m at maximum roads, paddy dikes with vertical displacement 1.2m maximum, while no large has been reported Kobe where major damage...

10.5026/jgeography.104.127 article EN Journal of Geography (Chigaku Zasshi) 1995-01-01

The numerous coral reefs in the Ryukyu Islands provide detailed evidence of relationship between reef development and late Holocene sea-level changes. islands belong to tectonically active island arc have experienced many destructive earthquakes historical period. It is, therefore, assumed that been terraced at various elevations, due sudden uplift associated with major earthquakes, sites during period post-glacial eustatic In this paper, authors attempted restore curve as follows. First,...

10.4157/grj.51.87 article EN Geographical Review of Japan 1978-01-01

Prominent Holocene marine terraces classified into four levels in southern Boss, have recorded the history of seismic crustal deformation by large earthquakes along Sagami trough. The mode and amount movements are discussed based on relative sea-level curve reconstructed from topographical chronological data including 36 14 C dates. 1. indicates times sudden drops at 6, 150 y. B. P., 4, 350 2, 850y. P. 250y. caused upheavals associated with -earthquakes like that Genroku Taisho type (Fig....

10.4157/grj.53.29 article EN Geographical Review of Japan 1980-01-01

Pulmonary arterial hypertension is characterized by abnormal proliferation of pulmonary artery smooth muscle cells and vascular remodeling, which leads to right ventricular (RV) failure. Bsg (Basigin) a transmembrane glycoprotein that promotes myofibroblast differentiation, cell proliferation, matrix metalloproteinase activation. CyPA (cyclophilin A) binds its receptor inflammatory recruitment. We previously reported cardiac fibrosis failure in the left ventricle response pressure-overload...

10.1161/atvbaha.120.315731 article EN Arteriosclerosis Thrombosis and Vascular Biology 2021-01-21

We invented a completely new simple method and equipment necessary for high-resolution active fault studies. Vertical thin sections of unconsolidated soil layers are extracted by newly sampler named "Geo-slicer".Extracted can be taken to laboratory close examination or displayed at meeting even stored future re-examinations (Fig. 1). This enables us carry on analyses not only in studies but also other fields Quaternary sciences with less expenditure time, labor money.We made three...

10.5026/jgeography.106.59 article EN Journal of Geography (Chigaku Zasshi) 1997-01-01

In 1771, according to several trustworthy historical records, a huge tsunami named the Meiwa Tsunami washed southern part of Ryukyu Islands killing about 12, 000 people. The attributed probably large earthquake generated by submarine thrust fault along Trench. consisting Miyako, Irabu, Shimoji, Tarama, Ishigaki, Iriomote and other small islands are fringed coral reefs, Holocene coralline boulders possibly transported past tsunamis, extensively distributed on land reef flats. Among these...

10.5026/jgeography.103.4_352 article EN Journal of Geography (Chigaku Zasshi) 1994-01-01

Abstract A tsunamigenic sand layer is present in coastal sequences of the Masuda Plain, southwest Japan. The radiometric age has been estimated at 930 ± 80 years BP. It proposed that deposit product a large historic tsunami believed to have occurred Japan Sea on 16 June 1026 AD.

10.1111/j.1440-1738.1994.tb00006.x article EN Island Arc 1994-03-01
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