Takehito Hayakawa - Articles - Scientific Research Publishing

Development of simple HPLC/UV with a column-switching method for the determination of nicotine and cotinine in hair samples (Articles)

Masayoshi Tsuji, Yayoi Mori, Hideyuki Kanda, Teruna Ito, Tomoo Hidaka, Takeyasu Kakamu, Tomohiro Kumagai, Takehito Hayakawa, Yoneatsu Osaki, Tetsuhito Fukushima

Health Vol.5 No.4，April 18, 2013

DOI: 10.4236/health.2013.54091 6,173 Downloads 9,633 Views Citations
Controlling the Energy Absorption Capability of a Unidirectional Carbon Fiber Reinforced Plastic Tube Using a Double-Sided Plug (Articles)

Masahito Ueda, Takehito Tsuji, Tae-Kun Jeong

Open Journal of Composite Materials Vol.5 No.1，December 31, 2014

DOI: 10.4236/ojcm.2015.51006 4,992 Downloads 6,724 Views Citations
Stability Analysis of Cliff Face around Kegon Falls in Nikko, Eastern Japan: An Implication to Its Erosional Mechanisms (Articles)

Yuichi S. Hayakawa

International Journal of Geosciences Vol.4 No.6B，August 20, 2013

DOI: 10.4236/ijg.2013.46A2002 4,974 Downloads 7,424 Views Citations
This article belongs to the Special Issue on Geography
On the Tempo-Spatial Evolution of the Lower Ionospheric Perturbation for the 2016 Kumamoto Earthquakes from Comparisons of VLF Propagation Data Observed at Multiple Stations with Wave-Hop Theoretical Computations (Articles)

Tomokazu Asano, Masashi Hayakawa

Open Journal of Earthquake Research Vol.7 No.3，July 23, 2018

DOI: 10.4236/ojer.2018.73010 1,145 Downloads 2,112 Views Citations
Angiodysplasia Presenting with Multiple Polypoid Lesions: An Unusual Cause of Small Bowel Obstruction (Articles)

Yoshiharu Takenaka, Takahiro Sasaki, Nobuyoshi Miyajima, Takehito Otsubo

Case Reports in Clinical Medicine Vol.3 No.11，November 21, 2014

DOI: 10.4236/crcm.2014.311128 3,593 Downloads 4,441 Views Citations
The Effect of Nitrous Oxide on the Intraocular Pressure in Patients Undergoing Abdominal Surgery under Sevoflurane and Remifentanil Anesthesia (Articles)

Toru Goyagi, Takehito Sato, Takashi Horiguchi, Toshiaki Nishikawa

Open Journal of Anesthesiology Vol.6 No.6，June 9, 2016

DOI: 10.4236/ojanes.2016.66014 2,230 Downloads 4,040 Views Citations
Variations of Atmospheric ELF/VLF Radio Noise Due to Seismogenic Modifications in Tropospheric Conductivity (Articles)

Masashi Hayakawa, Alexander P. Nickolaenko

Open Journal of Earthquake Research Vol.13 No.2，May 27, 2024

DOI: 10.4236/ojer.2024.132005 186 Downloads 573 Views Citations
Transition of the Feldstein-Horioka Puzzle (Articles)

Isamu Ginama, Kazuhiko Hayakawa, Takahiro Kanmei

Journal of Mathematical Finance Vol.11 No.1，February 26, 2021

DOI: 10.4236/jmf.2021.111006 556 Downloads 1,748 Views Citations
Malnutrition Assessed Using the Geriatric Nutritional Risk Index Is Associated with Preoperative Incidence of Deep Vein Thrombosis in Japanese Patients Undergoing Total Knee Arthroplasty (Articles)

Taizo Kaneko, Kentaro Hayakawa, Tsuyoshi Miyazaki

Open Journal of Orthopedics Vol.14 No.8，August 8, 2024

DOI: 10.4236/ojo.2024.148030 100 Downloads 347 Views Citations
Geographical Patterns of Tuberculosis Notification Rates and Their Associations with Sociodemographic Characteristics in Communes in Phnom Penh, Cambodia (Articles)

Ayano Miyashita, Aya Hiraki, Keiko Nakamura, Takehito Takano, Kaoruko Seino, Saber Al-Sobaihi, Ngy Mean Heng, Koeut Pichenda

Journal of Tuberculosis Research Vol.7 No.2，June 30, 2019

DOI: 10.4236/jtr.2019.72011 844 Downloads 2,116 Views Citations
Difference of Curcumin Content in Curcuma longa L. (Zingiberaceae) Caused by Hybridization with Other Curcuma Species (Articles)

Hiroshi Hayakawa, Yukio Minaniya, Katsura Ito, Yoshinori Yamamoto, Tatsuya Fukuda

American Journal of Plant Sciences Vol.2 No.2，July 1, 2011

DOI: 10.4236/ajps.2011.22013 11,959 Downloads 23,918 Views Citations
On the Anomalies in ULF Magnetic Field Variations Prior to the 2008 Sichuan Earthquake (Articles)

Qi Li, Alexander Schekotov, Tomokazu Asano, Masashi Hayakawa

Open Journal of Earthquake Research Vol.4 No.2，April 14, 2015

DOI: 10.4236/ojer.2015.42005 4,433 Downloads 5,694 Views Citations
A Study on the Correlation of Milk Yield of Cows with Seismicity and ULF Magnetic Field Variations (Articles)

Masashi Hayakawa, Tomokazu Asano, Alexander Schekotov, Hiroyuki Yamauchi

Open Journal of Earthquake Research Vol.5 No.4，November 17, 2016

DOI: 10.4236/ojer.2016.54017 1,466 Downloads 2,784 Views Citations
Characteristic Variations of VLF/LF Signals during a High Seismic Activity in Japan in November 2016 (Articles)

Tomokazu Asano, Alexander Rozhnoi, Maria Solovieva, Masashi Hayakawa

Open Journal of Earthquake Research Vol.6 No.4，November 3, 2017

DOI: 10.4236/ojer.2017.64013 1,123 Downloads 2,187 Views Citations
Formation of Ionospheric Precursors of Earthquakes—Probable Mechanism and Its Substantiation (Articles)

Georgii Lizunov, Tatiana Skorokhod, Masashi Hayakawa, Valery Korepanov

Open Journal of Earthquake Research Vol.9 No.2，March 16, 2020

DOI: 10.4236/ojer.2020.92009 737 Downloads 2,172 Views Citations
This article belongs to the Special Issue on Seismo Electromagnetics and Earthquake Prediction
Malnutrition and Its Association with the Mortality of Patients with Femoral Intertrochanteric Fractures: A Retrospective Analysis of Japanese Patients (Articles)

Taizo Kaneko, Kyoko Matsudaira, Kentaro Hayakawa, Fumiaki Tokimura, Tsuyoshi Miyazaki

Open Journal of Orthopedics Vol.14 No.1，January 22, 2024

DOI: 10.4236/ojo.2024.141003 101 Downloads 447 Views Citations
Meteorological Anomalies Based on Ground-Based AMeDAS Data for the 1995 Kobe Earthquake: Critical Natural Time Analysis (Articles)

Masashi Hayakawa, Stelios M. Potirakis, Shinji Hirooka, Yasuhide Hobara

Open Journal of Earthquake Research Vol.14 No.2，April 30, 2025

DOI: 10.4236/ojer.2025.142006 91 Downloads 298 Views Citations
A Study on Lithosphere-Atmosphere-Ionosphere Coupling Channel for the 1995 Kobe Earthquake, by Including Ground-Based Meteorological Anomalies (Articles)

Hide’aki Hinata, Koichiro Michimoto, Yuko Ozawa, Masashi Hayakawa

Open Journal of Earthquake Research Vol.14 No.2，May 21, 2025

DOI: 10.4236/ojer.2025.142007 83 Downloads 258 Views Citations
An Evans Syndrome Case Expressing Anti-Jk^a Autoantibody under Condition of Primary IgA Immunodeficiency (Articles)

Takeshi Sugimoto, Ayumi Tani, Ikuyo Hayakawa, Makoto Hashimoto, Tomoko Yanai, Ikuko Kubokawa, Takeshi Mori, Takeshi Kato, Satoshi Hirase, Nobuyuki Yamamoto, Hironobu Minami, Akira Hayakawa

International Journal of Clinical Medicine Vol.6 No.7，July 16, 2015

DOI: 10.4236/ijcm.2015.67066 3,117 Downloads 4,491 Views Citations
Development of a Molecular Marker to Identify a Candidate Line of Turmeric (Curcuma longa L.) with a High Curcumin Content (Articles)

Hiroshi Hayakawa, Tetsuya Kobayashi, Yukio Minaniya, Katsura Ito, Akira Miyazaki, Tatsuya Fukuda, Yoshinori Yamamoto

American Journal of Plant Sciences Vol.2 No.1，March 4, 2011

DOI: 10.4236/ajps.2011.21002 9,047 Downloads 19,466 Views Citations

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