Geomagnetic pulsations caused by the Sumatra earthquake on December 26, 2004

A long period Pc5 pulsation was observed at Phimai in Thailand, shortly after the origin time of the Sumatra earthquake on December 26, 2004. The localized nature and the period of oscillations suggest that the long period magnetic pulsation was generated by dynamo action in the lower ionosphere, set up by an atmospheric pressure pulse which propagated vertically as an acoustic wave when the ocean floor suddenly moved vertically. It is speculated that a Pc3 type pulsation observed at Tong Hai in China, 10 degrees north of Phimai in latitude, was the result of magnetic field line resonance with a magnetosonic wave generated from the electric and magnetic fields of the dynamo current caused by the Earthquake.publishersversionPeer reviewe

The State of Dietary Habits Among Students in Nutritionist Training Courses: A Report on Breakfast Habits, Vegetable and Salt Intake

In this study, a food questionnaire was administered to students in the nutritionist training course from 2020 to 2023 with the purpose of reviewing their dietary habits. The 144 students who responded were included in the analysis. They were divided into two groups according to the frequency of breakfast: "4 or more days a week"（breakfast intake habit group）and "3 or less days a week"（not applicable group）. Survey items related to breakfast intake, vegetable intake, and salt intake were compared. The breakfast intake habitual group had a significantly lower percentage of those living alone. In addition, a significantly higher proportion of the breakfast habituated respondents had a breakfast consisting of a staple meal, main dishes, and side dishes, and a significantly higher proportion of them consumed vegetables for breakfast. However, the results also indicated that breakfast was not sufficient even for those who were habitual breakfast eaters.departmental bulletin pape

Identification of Gas Emanated from Human Skin: Methane, Ethylene, and Ethane

We investigated whether methane, ethylene and ethane gas can be detected in gas emanating from human skin, which is called skin gas. Skin gas was collected with a homemade stainless-steel trap system, which was cooled with liquid nitrogen, and analyzed with a gas chromatograph fitted with a flame ionization detector (FID). Skin-gas samples were obtained by covering a hand for 30 min with a polyfluorovinyl bag in which pure helium gas was introduced. The bag, the trap system and GC were set up online to avoid any contamination by air. Methane, ethylene and ethane in skin gas were successfully collected at an average amount emanated for 30 min (from ten subjects) of 150 ± 63, 20 ± 11 and 17 ± 8 [mean ± SD] pg/cm2, respectively.This work was partly supported by the Regional Science Promotion Program, Japan Science and Technology Agency

食文化に関する学習内容を取り入れた食育実践の効果 －小学校３年生を対象に教科と総合的な学習の時間を関連づけた実践－

　We examined the effects of nutrition education and the study of food culture in an integrated study of third grade elementary school students. The goal was to gain awareness about Japanese food culture and to cultivate feelings of gratitude toward food. The study focused on soy beans, making tofu, and learning the characteristics of Japanese food. We evaluated the results by analyzing worksheet descriptions and the results of a survey of eating habits before and after the education intervention.　The worksheets included thoughts concerning the process of tofu-making and about traditional foods. Many students recorded reflections on their daily dietary habits. In the post survey, intake of soybeans, and attitudes to refusing traditional foods and reducing lunch plate waste were significantly improved. These results show that this study has helped raise awareness of Japanese food culture