{"title":"Simulation of arson fire with gasoline in the kitchen and development of a three-dimensional visualization model for evaluation of fire damage","authors":"Kousuke Tsuneyoshi, Kyoichiro Hirata, Ken'ichiro Suzuki, Yukimune Takahashi, Yuji Tobita, Atsushi Ueda, Shintaro Watanabe, Toshikazu Ichikawa, Masahiro Nakagawa, Takao Hagiwara, M. Honma, Katsuhiro Okamoto","doi":"10.3408/jafst.827","DOIUrl":"https://doi.org/10.3408/jafst.827","url":null,"abstract":"","PeriodicalId":14709,"journal":{"name":"Japanese Journal of Forensic Science and Technology","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73016973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Takahiro Kawakami, Atsushi Ishiba, Kenjiro Ito, S. Okuyama
{"title":"A new field-test for cocaine as an alternative to the Scott-test for use in criminal investigation fields","authors":"Takahiro Kawakami, Atsushi Ishiba, Kenjiro Ito, S. Okuyama","doi":"10.3408/jafst.812","DOIUrl":"https://doi.org/10.3408/jafst.812","url":null,"abstract":"","PeriodicalId":14709,"journal":{"name":"Japanese Journal of Forensic Science and Technology","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81148018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Inspection of the relationship between the car speed and the visually recognizable distance of the person lying on the road in night driving","authors":"Shinichi Ishii, Yasuo Ono, Toshihiko Hayakawa, Yuko Shimizu, Shuta Hiratsuka","doi":"10.3408/jafst.832","DOIUrl":"https://doi.org/10.3408/jafst.832","url":null,"abstract":"","PeriodicalId":14709,"journal":{"name":"Japanese Journal of Forensic Science and Technology","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91543514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Personal identification based on the radiographic images of the inverted findings of maxillary third molar and supernumerary mesiodens","authors":"H. Tsutsumi, H. Izawa, Akira Furukawa, T. Komuro","doi":"10.3408/jafst.831","DOIUrl":"https://doi.org/10.3408/jafst.831","url":null,"abstract":"","PeriodicalId":14709,"journal":{"name":"Japanese Journal of Forensic Science and Technology","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89792634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Internal validation for analytical and stochastic thresholds in the GlobalFiler system","authors":"Shojiro Manabe, M. Hashiyada, Atsushi Akane","doi":"10.3408/jafst.845","DOIUrl":"https://doi.org/10.3408/jafst.845","url":null,"abstract":"","PeriodicalId":14709,"journal":{"name":"Japanese Journal of Forensic Science and Technology","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84227415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Classification of gel fuel by a combination of instrumental analyses","authors":"Munetsugu Moro","doi":"10.3408/jafst.835","DOIUrl":"https://doi.org/10.3408/jafst.835","url":null,"abstract":"","PeriodicalId":14709,"journal":{"name":"Japanese Journal of Forensic Science and Technology","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89702458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuko Suefusa, N. Otani, H. Wakuda, Kyoko Sato, M. Kuranari, N. Uemura
{"title":"Examination of method for the measurement of acetaldehyde in human plasma by using 9,10-phenanthrenequinone as a derivatizing agent","authors":"Yuko Suefusa, N. Otani, H. Wakuda, Kyoko Sato, M. Kuranari, N. Uemura","doi":"10.3408/JAFST.804","DOIUrl":"https://doi.org/10.3408/JAFST.804","url":null,"abstract":"Blood acetaldehyde levels are often measured to elucidate individual diŠerences and pharmacokinetics of alcohol metabolism due to the gene polymorphisms of aldehyde ship ( R 2 = 0.9994 ) in the range of 3 100 m M indicated strong results. The limit of detection and quantiˆcation was 1 m M and 3 m M, respectively. The intra- and inter-day precision were both below 13.0 and accuracy was in the range of - 8.5 to 2.5 . The extraction recoveries of acetaldehyde in human plasma ranged from 80.4 to 106.8 . The derivative was stable at 4 ° C for 2 days. When acetaldehyde was added in human plasma and derivatized with PQ, acetaldehyde could be quantiˆed by liquid chromatography-mass spectrometry. However, after drinking alcohol, acetaldehyde was measured in healthy subjects with ALDH2 1 / 2 , but not with ALDH2 1 / 1 . Acetaldehyde was di‹cult to detect in subjects with ALDH2 1 / 1 , as they are rapid metabolizers of acetaldehyde resulting in low concentrations of acetaldehyde. Acetaldehyde was detected in those subjects with ALDH2 1 / 2 , however, the measured acetaldehyde levels varied between the analytical methods.","PeriodicalId":14709,"journal":{"name":"Japanese Journal of Forensic Science and Technology","volume":"133 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74320395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Matsuoka, Takao Hagiwara, M. Kasamatsu, Yasuhiro Suzuki, Masahiro Nakagawa, Toshikazu Ichikawa, Katsuhiro Okamoto, M. Honma
{"title":"Time-dependent changes in chemical composition and detectable period by GC/MS of petroleum-based liquid fuel residues from fire debris of various floor materials","authors":"I. Matsuoka, Takao Hagiwara, M. Kasamatsu, Yasuhiro Suzuki, Masahiro Nakagawa, Toshikazu Ichikawa, Katsuhiro Okamoto, M. Honma","doi":"10.3408/jafst.805","DOIUrl":"https://doi.org/10.3408/jafst.805","url":null,"abstract":"","PeriodicalId":14709,"journal":{"name":"Japanese Journal of Forensic Science and Technology","volume":"387 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75528375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Takashi Fukagawa, Haruhiko Watahiki, Yusuke Mita, Tetsushi Kitayama, K. Fujii, N. Mizuno
{"title":"Comparison of human DNA quantification kits based on a TaqMan assay","authors":"Takashi Fukagawa, Haruhiko Watahiki, Yusuke Mita, Tetsushi Kitayama, K. Fujii, N. Mizuno","doi":"10.3408/jafst.821","DOIUrl":"https://doi.org/10.3408/jafst.821","url":null,"abstract":"Human DNA quantiˆcation is an important step for subsequent short tandem repeat (STR) analysis and interpretation because it can provide various information on the quantity and quality for the extracted DNA. In this study, we compared four commercially available quantiˆcation kits based on a TaqMan assay and an intercalating-dye based quantiˆcation kit. The following three points were investigated: 1) variations of the average peak heights among individuals when 1 ng of DNA, the amount being determined by each quantiˆcation kit, was ampliˆed using GlobalFiler and Yˆler Plus PCR Ampliˆcation Kits, 2) eŠect of the presence of a female DNA on the quantiˆcation of male DNA, and 3) relationship between ``Degradation Index'' and the STR electropherograms. The average peak heights generated using GlobalFiler showed less individual-dependent variations in the four TaqMan based kits than the intercalating-dye based kit. The average peak heights generated using Yˆler Plus showed similar variations among the three TaqMan based kits capable of male DNA quantiˆcation along with total human DNA. The presence of a large amount of female DNA had little eŠect on male DNA quantiˆcation in all the three kits. When highly degraded DNA samples were quantiˆed, the ``Degradation Indices'' diŠered signiˆcantly among three kits. It was probably due to the diŠerent amplicon sizes of the long fragment targets among kits. Before implementing a new human DNA quantiˆcation kit in casework, it is essential to understand the characteristics of the adopted quantiˆcation kit.","PeriodicalId":14709,"journal":{"name":"Japanese Journal of Forensic Science and Technology","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82536122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Forensic discrimination of plastic cable ties","authors":"Tsuyoshi Kaneko, Y. Hanzawa","doi":"10.3408/JAFST.809","DOIUrl":"https://doi.org/10.3408/JAFST.809","url":null,"abstract":"Cable tie is one type of evidence submitted to forensic science laboratories, due to its potential as a tool used in crime. In this report, ten commercially available cable tie samples were analyzed and compared to study their potential for forensic discrimination. Samples were ˆrst evaluated through examination of their physical properties, shape, size, and traces from the mold. As a result of these examinations, 9 groups of the possible comparison pairs were discriminated. The chemical compo-sitions of the samples were subsequently characterized through the use of infrared spectroscopy and matrix assisted laser desorption ionization mass spectrometry. With this result, it was possible to discriminate the pair that could not originally be discriminated.","PeriodicalId":14709,"journal":{"name":"Japanese Journal of Forensic Science and Technology","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88915867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}