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We present cross section measurements for neutron-induced activation of Bi, at 287 and 370 MeV. These values were derived from the activation method using a quasi-monoenergetic neutron field based on the 7Li(p, n) reaction. In separate experiments, samples were irradiated with neutrons derived from 7Li(p,n) reaction at either 0° or 30° for proton beam axis. This approach allows the subtraction of the low energy neutron components. The measured cross sections are compared with the findings of other studies, and evaluated in relation to nuclear data files. [ABSTRACT FROM AUTHOR]

Cross sections of 7Be, 22Na and 24Na for geo-chemically and cosmochemically important elements were measured at incident neutron energies of 287 and 370 MeV. The cross sections were measured in target exposed to high-energy monoenergetic neutrons at the Research Center for Nuclear Physics (RCNP), Osaka University. [ABSTRACT FROM AUTHOR]

In April 2019, baobab ( Adansonia digitata L.) seedlings from Thailand, exhibiting galls on the roots, were intercepted during an import plant quarantine inspection at Chubu Centrair International Airport, Japan. Root-knot nematodes (RKNs) were extracted from the galled roots of baobab seedlings and identified by morphological, morphometrical and molecular methods as the guava root-knot nematode, Meloidogyne enterolobii Yang & Eisenback. The morphology and morphometrics of the intercepted population were similar to those of the original and subsequent descriptions of M. enterolobii . The sequences of D2-D3 of 28S rRNA, mtDNA intergenic COII-16S rRNA and COI genes obtained in this study matched well (99-100% similarity) with each of the gene sequences of M. enterolobii deposited in GenBank. Phylogenetic analysis of these genes revealed that the intercepted population clustered with M. enterolobii and clearly differed from other RKN species. To the best of our knowledge, this is the first report of M. enterolobii from baobab., Competing Interests: Conflict of Interest The authors state no conflict of interest., (© 2023 S. Sekimoto et al., published by Sciendo.)