ターボスピンエコー拡散強調画像による下垂体構造と病変の評価

宮崎大学博士（医学）2019年度doctoral thesi

Survey research on psychological burden during Information transfer within organizations : focusing on organizations to which university students belong

論文One of the main problems of information transfer in organizations is considered to be communication errors. For organizations in which multiple people perform tasks, communication errors are a serious problem and a challenge for the organization to overcome. However, unlike robots and computers, it is very difficult to completely prevent communication errors caused by various human factors in human communications, where it is difficult for humans to always function exactly according to the instructions and commands they are given. In today's Business organizations, human relationships in the workplace may be a stress factor that increases the probability of communication errors. Therefore, this study focuses on information transmission in particular in communication and aims to attempt to elucidate the factors that negatively influence the psychological aspect of human beings, considering that psychological feelings of reluctance to convey information (stress reaction) may be a factor that inhibits information transmission. In this study, we conducted a questionnaire survey of university students to try to elucidate the factors that negatively influence the psychological aspect of information transmission. As a result of analysis and discussion of the data obtained from the survey, it was clarified that information transfer may be inhibited by factors such as who the other person is, whether the other person is in a bad mood, whether the other person is disgusted with the other person, and whether the atmosphere of the place where the information is conveyed is bad, in the case of humans with emotions. In addition, we were able to identify six factors that particularly cause psychological burden in information transmission: "bad information for the other party," "the other party is in a bad mood," "the other party treats me with dislike," "the other party is busy," "the atmosphere of the place is difficult to talk," and " the other party is in a bad relationship. In addition, we were able to identify differences by gender and by communication characteristics regarding the factors that cause significant psychological burden in information transmission.departmental bulletin pape

A study on changes in decision-making toward ex-criminal offenders after pre-Lectur : an analysis from dual process theory and personality trait

論文The purpose of this study is to clarify the extent to which human decision making is changed by prior lectures (input of new information) from the perspective of personality traits and dual process theory. 1) Will prior lectures change human decision making, 2) Is there a relationship between changes in decision making and the personality traits of the subjects, and 3) Whether there is a difference in the change in decision-making between logical/rational and emotional/intuitive types of thinking. Therefore, in this study, we conducted an empirical experiment on college student excriminal offenders in order to elucidate the extent to which human decision making is changed by prior lectures from the perspective of personality traits and dual process theory. As a result of analyzing and discussing the data obtained from the empirical experiment, we were able to clarify the above three points. Furthermore, the study confirmed that the decision making of many subjects changed when new knowledge was input in a state of partial ignorance state or insufficient human knowledge. Thus, we found that in states of insufficient knowledge, human decision making can be altered by a little input information. We also noted that when humans are in a state of partial ignorance state or insufficient knowledge, there is a risk that their decisions will be made in the wrong direction when intentionally inaccurate or biased information is input. However, since the data used in this study were only for university students, it is not possible to clarify the data for other age groups than those in their 20s or so based on what was examined in this study alone. Therefore, there is still a need to examine a wider range of age groups. Based on the findings of this study, it will be necessary to continue to investigate a wider range of generations.departmental bulletin pape

A study of the relationship between purchasing behavior and personality of university students : perspectives on optimism and pessimism

論文The primary marketing target in the U.S. is shifting toward the generation born after the mid-1990s（ Generation Z）. According to a Bloomberg article, “There are more than 2 billion Generation Z’s worldwide, and their spending power is growing. Generation Z’s purchasing power in the U.S. is estimated to be $44 billion, and it is a generation that is expected to continue to expand”. In addition, 40% of total consumption in the U.S. is accounted for by Generation Z, and their purchasing power is expected to grow to 22 trillion yen. Thus, the global market is required to recognize Generation Z as an important target. Therefore, analyzing the purchasing behavior of a university students is expected to become even more important for sales and marketing strategies for Generation Z, which will become the consumer purchasing group that will drive future consumption trends. The purpose of this study was to conduct a questionnaire survey on the purchasing behavior of university students, who are expected to become a major consumer-buying group near future, and to elucidate how individual characteristics such as optimism and pessimism affect the purchasing behavior of university students. Analysis and discussion of the data obtained from the survey revealed that male optimistic subjects were more likely than pessimistic subjects to purchase items when many others were purchasing, while pessimistic subjects were more likely than optimistic subjects to purchase unnecessary items and to regret after making unplanned purchases. On the other hand, female optimistic subjects were much more likely to buy what they liked without careful consideration, while pessimistic subjects were much more likely to buy unnecessary items and regret them. Furthermore, for optimistic subjects, the behavioral characteristics of “shopping makes me feel good”, “I rarely buy unnecessary items”, and “I never regret after purchasing unplanned goods and services” are valid characteristics, while for pessimistic subjects, the behavioral characteristics of “shopping does not make me feel good”, and “I never regret after purchasing unnecessary items” are valid characteristics. and “I often buy unnecessary things” and “I sometimes have regrets after purchasing unplanned goods and services” are valid characteristics for pessimistic subjects.departmental bulletin pape

Differentiation between glioblastoma and solitary brain metastasis using neurite orientation dispersion and density imaging

Background and purpose Neurite orientation dispersion and density imaging (NODDI) is a new technique that applies a three-diffusion-compartment biophysical model. We assessed the usefulness of NODDI for the differentiation of glioblastoma from solitary brain metastasis. Methods NODDI data were prospectively obtained on a 3T magnetic resonance imaging (MRI) scanner from patients with previously untreated, histopathologically confirmed glioblastoma (n = 9) or solitary brain metastasis (n = 6). Using the NODDI Matlab Toolbox, we generated maps of the intra-cellular, extra-cellular, and isotropic volume (VIC, VEC, VISO) fraction. Apparent diffusion coefficient – and fraction anisotropy maps were created from the diffusion data. On each map we manually drew a region of interest around the peritumoral signal-change (PSC) – and the enhancing solid area of the lesion. Differences between glioblastoma and metastatic lesions were assessed and the area under the receiver operating characteristic curve (AUC) was determined. Results On VEC maps the mean value of the PSC area was significantly higher for glioblastoma than metastasis (P < 0.05); on VISO maps it tended to be higher for metastasis than glioblastoma. There was no significant difference on the other maps. Among the 5 parameters, the VEC fraction in the PSC area showed the highest diagnostic performance. The VEC threshold value of ≥ 0.48 yielded 100% sensitivity, 83.3% specificity, and an AUC of 0.87 for differentiating between the two tumor types. Conclusions NODDI compartment maps of the PSC area may help to differentiate between glioblastoma and solitary brain metastasis.Yoshihito Kadota, Toshinori Hirai, Minako Azuma, Yohei Hattori, Zaw Aung Khant, Masaaki Hori, Kiyotaka Saito, Kiyotaka Yokogami, Hideo Takeshima, Differentiation between glioblastoma and solitary brain metastasis using neurite orientation dispersion and density imaging, Journal of Neuroradiology, Volume 47, Issue 3, 2020, Pages 197-202, ISSN 0150-9861, https://doi.org/10.1016/j.neurad.2018.10.005

A Computer Software Program for Specifying Water Sampling Sites using the World Wide Web

departmental bulletin pape

Precise Measurement of B Meson Lifetimes with Hadronic Decay Final States

journal articl

移民の倫理学をめぐる一試論：国家に個人を排除する道徳的権利はあるのか

departmental bulletin pape

Outline of Japan-Russia joint Glaciological Research on Sofiyskiy Glacier, Russian Altai Mountains in 2000 and 2001

This paper focuses on field activity by the “Japan-Russia Joint Glaciological Research on Sofiyskiy Glacier, Russian Altai Mountains” carried out during 15-24 July 2000 and 6-17 July 2001. The purpose of this investigation was to reconstruct climate and environment records in the past few decades through ice core study. Three ice cores 25.1m, 12.3m and 9m deep were recovered and two pits of 3 and 4.5m deep were made on the accumulation area of Sofiyskiy Glacier (49°47′10″N, 87°43′48″E; 3435m a.s.l.). The deepest 25.1m core will preserve the environmental record during the last 10 to 20 years. Ice core samples were cut and melted at the research site, and transported to Japan for more detailed analyses, such as oxygen isotopes, microparticles, pH, anions, cations and bacteria content. Cores consisted of firn and ice layers. It was found that the borehole temperature was 0℃ from the surface to 8m depth and also from 16m to 25m depth. The temperature between 8 and 16m was negative with the minimum at 10m depth (-0.1℃ for the 2000 borehole and -0.3℃ for the 2001 borehole). Meteorological observations were also carried out. After the investigation on Sofiyskiy Glacier in 2001, reconnaissance survey of glaciers near the Russia-China-Mongolia border region was carried out and surface snow was sampled at two sites.application/pdfjournal articl