Yoshiyasu Higashikawa

TL;DR: 3-Methylfentanyl showed the strongest analgesic activity among these compounds, and the most frequently abused fentanyl derivative, α-methylf fentanyl, also showed quite strong activity.

TL;DR: Four novel metabolites, which reflect the original structure of α-methylfentanyl, were identified in rat urine, and were identified by comparisons of their retention times and mass spectra obtained by gas chromatography-mass spectrometry (GC/MS) and mass chromatography of mono- and di-hydroxy α- methylf fentanyl with those of the synthesized authentic compounds.

TL;DR: Results indicate that As-adduct was derived from erythrocytes during the process of hemolysis by AsH(3) and further suggest that As(III) and plasma ingredients do not contribute to As- adduct production.

TL;DR: The forensic discrimination of glass fragments must be performed not by RI measurement, but by analysis of the elemental compositions when glass evidence could be exposed to the high temperature of fire.

TL;DR: The suspect's confession was not considered to be reliable, as a stronger contact with the victim was demonstrated by the simulations, but the fiber intelligence was highly significant to explain the suspect's behavior at the crime scene.