Identification of alpha cluster states analogous to the 12C Hoyle state in heavier alpha- conjugate nuclei can provide tests of the existence of alpha condensates in nuclei. Such states are predicted ...for 16O, 20Ne, 24Mg, 28Si etc. at excitation energies slightly above the multi-alpha particle decay threshold, but have not yet been experimentally identified. The Thick Target Inverse Kinematics (TTIK) technique can be used to study the breakup of excited self-conjugate nuclei into many alpha particles. The reaction 20Ne+{\alpha} was studied using a 20Ne beam at 12 MeV/nucleon from the K150 cyclotron at Texas A&M University. The TTIK method was used to study both single {\alpha}-particle emission and multiple {\alpha}-particle decays. Events with alpha multiplicity up to four were analyzed. The analysis of the three {\alpha} - particle emission data allowed the identification of the Hoyle state and other 12C excited states decaying into three alpha particles. The results are shown and compared with other data available in the literature. Although the statistics for events with alpha multiplicity four is low, the data show a structure at about 15.2 MeV that could indicate the existence in 16O of a state analogous to the 12C Hoyle state. This structure is confirmed by the re-analysis of alpha multiplicity four events from a previous experiment performed at 9.7 MeV/nucleon with a similar setup but lower granularity. Moreover, the reconstructed excitation energy of 24Mg for these events peaks at around 34 MeV, very close to the predicted excitation energy for an excited state analogous to the 12C Hoyle state in 24Mg.
The food chemical properties of roasted fish meat were compared in order to clarify the difference between superheated steam (SHS) and propane-gas combustion heating using four types of fish, i.e., ...deepwater redfish, Norwegian salmon trout (cultured trout at sea), Atlantic mackerel and Japanese Spanish mackerel having different lipid contents. The optimum roasting conditions were 6 min for SHS heating and 12 min for propane-gas combustion heating, and thus the heating time by SHS was half that of the propane-gas heating. Both the moisture content and the yield of the roasted fish meat decreased as the degree of heating increased, but no influence due to the different fish samples and heating methods. SHS heating and gas heating was observed. The water activity of the roasted fish meat was almost constant, irrespective of the different sampling position, surface or inside of the muscle, or different heating methods. The load of the penetrating plate-type plunger into the roasted meat was affected by the heating conditions and sample fishes, but the difference between the SHS heating and the propane-gas heating was not clear. Sensory tests by 10 panelists showed that the appearance and tenderness of the roasted fish meat were superior to the SHS heating compared to the propane-gas heating. These results demonstrated that the SHS heating was effective for manufacturing the roasted fish meat as the SHS heating time was shorter than that of the propane-gas heating, and the estimation of the food chemical properties and sensory tests of the roasted fish meat heated by SHS were the same compared with that of the gas heating.
Light charged particle, (Z = 2), and intermediate-mass fragments, (2 < Z < 8), emitted in the mid-rapidity region were studied as a function of collision violence in
124Sn,
124Xe +
124Sn,
112Sn ...reactions at 28 MeV/nucleon. With increasing centrality, the heavier
6He isotope is found to be emitted closer to mid-rapidity than the lighter
3He isotope. The emission becomes increasingly favorable for particles with higher charge, Z, indicating mid-rapidity region to be not only neutron rich, but also a rich source of heavy fragment (cluster) formation.
We have examined 38 stomachs with the adenocarcinoma and multiple submucosal gastric gland (SG) lesions. Almost the SG lesions consisted of the foveolar epithelium, which stained negative with alcian ...blue whereas the ordinary glands stained positive with con-A (III), or with both types of epithelium, and they had no atypicality. Only 14 out of 2,188 SG lesions (0.63%) showed atypical proliferation. Three hundred and forty-nine out of 1,535 SG that were examined by lysozyme staining were strongly lysozyme positive. Almost all the propria mucosa in the areas of the minute SG showed erosive lesions with an atrophy of ordinary glands, glandular erosion, and a regenerative epithelium. Eleven stomachs (11/38 cases, 29.0%) had multiple adenocarcinomas.
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