S. Ohtani
YOU?
Author Swipe
View article: Development and validation of an <i>in vivo</i> pain assessment method for 28-day exposure to intermediate frequency magnetic fields
Development and validation of an <i>in vivo</i> pain assessment method for 28-day exposure to intermediate frequency magnetic fields Open
The objective of this study was to establish guidelines for evaluating the health effects of electromagnetic fields (EMFs). To achieve this, a comprehensive evaluation of EMF effects on living organisms from both engineering and biological…
View article: Statistical Analysis of Storm‐Time O <sup>+</sup> Outflows as Observed by the Van Allen Probes
Statistical Analysis of Storm‐Time O <sup>+</sup> Outflows as Observed by the Van Allen Probes Open
The outflow of low‐energy ions into inner magnetosphere is a key contributor to the warm plasma cloak, and O + torus, which can also contribute to storm time ring current particularly after local acceleration. Although outflows are well ob…
View article: On the Spatial Relationship Between the Aurora and Relativistic Electron Precipitation During a Storm‐Time Substorm
On the Spatial Relationship Between the Aurora and Relativistic Electron Precipitation During a Storm‐Time Substorm Open
During substorms, Earth's magnetotail undergoes rapid dipolarization, driving Earthward plasma flows that decelerate and dissipate energy upon encountering the dipole magnetic field in the nightside transition region. This region mediates …
View article: Statistical analysis of storm-time $O^+$ outflows as observed from the Van Allen Probes
Statistical analysis of storm-time $O^+$ outflows as observed from the Van Allen Probes Open
View article: Species‐Dependent and Azimuthally‐Directional Flux Changes of Dispersionless Ion Injections Inside Geosynchronous Orbit
Species‐Dependent and Azimuthally‐Directional Flux Changes of Dispersionless Ion Injections Inside Geosynchronous Orbit Open
Dispersionless injection, involving sudden, simultaneous flux enhancements of energetic particles over a broad range of energy, is a characteristic signature of the particles that are experiencing a significant acceleration and/or rapid in…
View article: Does the Dayside Equatorial Ionospheric Electric Field Respond to Isolated Substorms?
Does the Dayside Equatorial Ionospheric Electric Field Respond to Isolated Substorms? Open
Substorms are known to induce global magnetosphere‐ionosphere coupling. However, the specific response of the dayside ionospheric electric field and its influence on the equatorial electrojet (EEJ) remain controversial. This study investig…
View article: Ground Magnetic Response to an Extraordinary IMF <i>B</i><sub><i>Y</i></sub> Flip During the May 2024 Storm: Travel Time From the Magnetosheath to Dayside High Latitudes
Ground Magnetic Response to an Extraordinary IMF <i>B</i><sub><i>Y</i></sub> Flip During the May 2024 Storm: Travel Time From the Magnetosheath to Dayside High Latitudes Open
In the present study we investigate the response of the dayside ground magnetic field to the sequence of interplanetary magnetic field (IMF) B Y changes during the May 2024 geomagnetic storm. We pay particular attention to its extraordinar…
View article: What is the relationship between the aurora and relativistic electron precipitation during a storm-time substorm?
What is the relationship between the aurora and relativistic electron precipitation during a storm-time substorm? Open
View article: Air‐Stable Radical Ion Pairs Formed from 20π‐Electron 5,15‐Diazaporphyrinoids and Tetracyanoquinodimethane Derivatives
Air‐Stable Radical Ion Pairs Formed from 20π‐Electron 5,15‐Diazaporphyrinoids and Tetracyanoquinodimethane Derivatives Open
With the aim of exploring 5,15‐diazaporphyrinoids with four meso substituents (R 4 DAP) as a new class of π‐electron donors, the generation of air‐stable π‐radical ion pairs formed from R 4 DAP and 7,7,8,8‐tetracyanoquinodimethane (TCNQ) d…
View article: Realistically Poseable Mouse Model for Assessing Exposures to Magnetic Field in the Intermediate Frequency Band
Realistically Poseable Mouse Model for Assessing Exposures to Magnetic Field in the Intermediate Frequency Band Open
Recently, a mouse model was used to quantify electromagnetic (EM) dosimetry in an investigation of the biological effects of an EM field in the intermediate-frequency band (300 Hz to 10 MHz). However, it did not reflect the realistic postu…
View article: GUIDELINES VI FOR IRRADIATION OF BLOOD AND BLOOD COMPONENTS TO PREVENT POST-TRANSFUSION GRAFT-VERSUS-HOST DISEASE IN JAPAN
GUIDELINES VI FOR IRRADIATION OF BLOOD AND BLOOD COMPONENTS TO PREVENT POST-TRANSFUSION GRAFT-VERSUS-HOST DISEASE IN JAPAN Open
View article: Dayside Magnetic Depression Following Interplanetary Shock Arrivals During the February 1958 and July 1959 Superstorms
Dayside Magnetic Depression Following Interplanetary Shock Arrivals During the February 1958 and July 1959 Superstorms Open
The present study investigates mid‐ and low‐latitude ground magnetic disturbances observed following the arrival of three interplanetary (IP) shocks during the super‐geomagnetic storms of February 1958 and July 1959. One may expect that af…
View article: Plasma Sheet Magnetic Flux Transport During Geomagnetic Storms
Plasma Sheet Magnetic Flux Transport During Geomagnetic Storms Open
Plasma sheet convection is a key element of storm‐time plasma dynamics in the magnetosphere. While decades of observations have advanced our understanding of convection in general, specifically storm‐time convection remains poorly understo…
View article: Quantifying Extreme Values in Geomagnetic Perturbations Using Ground Magnetic Records
Quantifying Extreme Values in Geomagnetic Perturbations Using Ground Magnetic Records Open
We comprehensively analyzed geomagnetic perturbations using ground magnetic records from over 400 stations spanning four solar cycles, from 1976 to 2023. We assess the perturbations in the three magnetic components separately. Our study co…
View article: An Extreme Auroral Electrojet Spike During 2023 April 24th Storm
An Extreme Auroral Electrojet Spike During 2023 April 24th Storm Open
Abrupt variations of auroral electrojets can induce geomagnetically induced currents, and the ability to model and forecast them is a pressing goal of space weather research. We report an auroral electrojet spike event that is extreme in m…
View article: Temporal Evolution of O<sup>+</sup> Population in the Near‐Earth Plasma Sheet During Geomagnetic Storms as Observed by the Magnetospheric Multiscale Mission
Temporal Evolution of O<sup>+</sup> Population in the Near‐Earth Plasma Sheet During Geomagnetic Storms as Observed by the Magnetospheric Multiscale Mission Open
During geomagnetic storms, the increase in energy input into the ionosphere in the form of Poynting flux and electron precipitation leads to an enhanced ionospheric outflow that results in an increase of the O + content in the magnetospher…
View article: Evaluating the magnetic and plasma flux transport in the plasma sheet during geomagnetic storms using MMS
Evaluating the magnetic and plasma flux transport in the plasma sheet during geomagnetic storms using MMS Open
During geomagnetic storms, the nightside of Earth’s magnetosphere experiences significant disturbances, featuring various phenomena that interact with one another. These include enhanced convection and particle injections influencing…
View article: REQUIRED CONDITIONS FOR PATIENT AND TRANSFUSION MANAGEMENT SYSTEMS COMPATIBLE WITH COMPUTER CROSSMATCH (2nd EDITION)
REQUIRED CONDITIONS FOR PATIENT AND TRANSFUSION MANAGEMENT SYSTEMS COMPATIBLE WITH COMPUTER CROSSMATCH (2nd EDITION) Open
Guideline コンピュータクロスマッチに適合する患者と輸血管理システムに必要な条件 (改訂 2 版)奥田 誠 1) 21) 23) 名倉 豊 2) 22) 岸野 光司 3) 21) 伊丹 直人 4) 21) 櫛引 健一 5) 21) 栗林 浩子 6) 21) 小本 美奈 7) 21) 22) 齋藤 光平 1) 21) 杉本 達哉 8) 21) 寺内 純一 9) 21) 22) 野崎 昭人 10) 21) ～23) 吉井 真司 11) 21) 遠藤 彩子 12) 22)…
View article: Development of an <i>in vivo</i> pain assessment method for exposure to intermediate-frequency magnetic fields
Development of an <i>in vivo</i> pain assessment method for exposure to intermediate-frequency magnetic fields Open
Research data on the biological effects of intermediate-frequency magnetic fields (IF-MF) remain inadequate, and there are no protocols currently exists that can assess the biological effects of electromagnetic fields similar to those used…
View article: Multiscale Magnetosphere‐Ionosphere Coupling During Stormtime: A Case Study of the Dawnside Current Wedge
Multiscale Magnetosphere‐Ionosphere Coupling During Stormtime: A Case Study of the Dawnside Current Wedge Open
A characteristic feature of the main phase of geomagnetic storms is the dawn‐dusk asymmetric depression of low‐ and mid‐latitude ground magnetic fields, with largest depression in the dusk sector. Recent work has shown, using data taken fr…
View article: Multiscale Magnetosphere-Ionosphere Coupling During Stormtime: A Case Study of the Dawnside Current Wedge
Multiscale Magnetosphere-Ionosphere Coupling During Stormtime: A Case Study of the Dawnside Current Wedge Open
A characteristic feature of the main phase of geomagnetic storms is the dawn-dusk asymmetric depression of low- and mid-latitude ground magnetic fields, with largest depression in the dusk sector. Recent work has shown, using data taken fr…
View article: Magnetoseismology in a New Era of Magnetospheric Research
Magnetoseismology in a New Era of Magnetospheric Research Open
Whitepaper #063 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: basic research. Additional topics: planetary magnetospheres; ground-based missions/projects; space-based missions/projects.
View article: Beyond AMPERE-NEXT: Envisioning the Next System of Global High-Latitude Electrodynamics
Beyond AMPERE-NEXT: Envisioning the Next System of Global High-Latitude Electrodynamics Open
Whitepaper #420 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: basic research; infrastructure/workforce/other programmatic. Additional topics: planetary magnetospheres; system science; space-based …
View article: Mesoscale Phenomena & their Contribution to the Global Response: A Focus on the Magnetotail Transition Region & Magnetosphere-Ionosphere Coupling
Mesoscale Phenomena & their Contribution to the Global Response: A Focus on the Magnetotail Transition Region & Magnetosphere-Ionosphere Coupling Open
An important question that is being increasingly studied across subdisciplines of Heliophysics is "how do mesoscale phenomena contribute to the global response of the system?"This white paper focuses on this question within two specific bu…
View article: Simulation of Dawn‐To‐Dusk Electric Field in the Jovian Inner Magnetosphere via Region 2‐Like Field‐Aligned Current
Simulation of Dawn‐To‐Dusk Electric Field in the Jovian Inner Magnetosphere via Region 2‐Like Field‐Aligned Current Open
The presence of the dawn‐to‐dusk electric field of about 4 mV/m in the Jovian inner magnetosphere and its response to the enhancement of the solar wind dynamic pressure are still a mystery of the rotation‐dominated Jovian magnetosphere. Pr…
View article: Mesoscale phenomena and their contribution to the global response: a focus on the magnetotail transition region and magnetosphere-ionosphere coupling
Mesoscale phenomena and their contribution to the global response: a focus on the magnetotail transition region and magnetosphere-ionosphere coupling Open
An important question that is being increasingly studied across subdisciplines of Heliophysics is “how do mesoscale phenomena contribute to the global response of the system?” This review paper focuses on this question within two specific …
View article: Graphisches Inhaltsverzeichnis: Angew. Chem. 19/2023
Graphisches Inhaltsverzeichnis: Angew. Chem. 19/2023 Open
View article: A report on a modified protocol for flow cytometry‐based assessment of blood group erythrocyte antigens potentially suitable for analysis of weak <scp>ABO</scp> subgroups
A report on a modified protocol for flow cytometry‐based assessment of blood group erythrocyte antigens potentially suitable for analysis of weak <span>ABO</span> subgroups Open
Background Flow cytometry (FC) has proven its utility in scrutinizing AB antigen expression in red blood cells (RBCs), cooperating with serological tests for accurate blood group typing. However, technical difficulties may impair the chara…
View article: Dosimetry of an Unrestrained Mouse in an Exposure Apparatus at 85kHz
Dosimetry of an Unrestrained Mouse in an Exposure Apparatus at 85kHz Open
Recently, a wireless power transfer system for charging electric vehicle (WPTSCEV) has rapidly gained its popularity from various advantages such as reducing charging task hassle and lowering electric shock probability by removing cable co…
View article: <i>In vivo</i>genotoxicity of high-intensity intermediate frequency magnetic fields in somatic cells and germ cells
<i>In vivo</i>genotoxicity of high-intensity intermediate frequency magnetic fields in somatic cells and germ cells Open
Intermediate frequency magnetic fields (IF-MFs) at ~85 kHz are one of the components of wireless power transfer (WPT) systems. However, the available data needed for the assessment of the safety of organisms from IF-MF exposure are scarce.…