121 research outputs found

    Bottom-Up Approach to Moduli Dynamics in Heavy Gravitino Scenario : Superpotential, Soft Terms and Sparticle Mass Spectrum

    Full text link
    The physics of moduli fields is examined in the scenario where the gravitino is relatively heavy with mass of order 10 TeV, which is favored in view of the severe gravitino problem. The form of the moduli superpotential is shown to be determined, if one imposes a phenomenological requirement that no physical CP phase arise in gaugino masses from conformal anomaly mediation. This bottom-up approach allows only two types of superpotential, each of which can have its origins in a fundamental underlying theory such as superstring. One superpotential is the sum of an exponential and a constant, which is identical to that obtained by Kachru et al (KKLT), and the other is the racetrack superpotential with two exponentials. The general form of soft supersymmetry breaking masses is derived, and the pattern of the superparticle mass spectrum in the minimal supersymmetric standard model is discussed with the KKLT-type superpotential. It is shown that the moduli mediation and the anomaly mediation make comparable contributions to the soft masses. At the weak scale, the gaugino masses are rather degenerate compared to the minimal supergravity, which bring characteristic features on the superparticle masses. In particular, the lightest neutralino, which often constitutes the lightest superparticle and thus a dark matter candidate, is a considerable admixture of gauginos and higgsinos. We also find a small mass hierarchy among the moduli, gravitino, and superpartners of the standard-model fields. Cosmological implications of the scenario are briefly described.Comment: 45 pages, 10 figures, typos correcte

    EXAMINATION OF THE ORIGINAL AWAODORI GUIDANCE WITH THE LAPTOP COMPUTER

    Get PDF
    The purposes of this study were 1) to introduce the original AWAODORI guidance computer software with the laptop computer to beginner college students and 2) to examine its effect on their motivation. AWAODORI is one of the most famous regional dances in Japan. It is a humorous dance and remains a traditional event of Tokushima, Japan. The reason why we designed the software was to pass this dance from generation to generation using some of the advantages of the modern laptop computer. 16 healthy college students participated in this study and they were divided into two groups. One group using AWAODORI software, the other the AWAODORI guidance video and other supplementary materials. In this study, there was no statistical difference to be found between the two groups indicating that the software may be as equally effective as conventional methods of guidance

    Muon Magnetic Dipole Moment and Higgs Mass in Supersymmetric SU(5) Models

    Get PDF
    We study the muon magnetic dipole moment and the Higgs mass in the framework of the supersymmetric SU(5) models. In this analysis, all the relevant parameters in the Lagrangian are taken to be free; in particular, assumption of the universal scalar mass is not adopted. Negative search for the Higgs boson at the LEP II experiment sets an important constraint on the supersymmetric contribution to the muon magnetic dipole moment a_\mu(SUSY). It is shown that, for a fixed value of the lightest Higgs mass, the maximum possible value of a_\mu(SUSY) becomes significantly larger in the general SU(5) case compared to the case of the universal scalar mass (i.e., the case of the so-called ``CMSSM''). We also point out that, if we take relatively large value of the trilinear scalar couplings, the constraint from the Higgs mass is drastically relaxed. In this case, a_\mu(SUSY) can be as large as \sim 50\times 10^{-10} even for small value of \tan\beta (say, for \tan\beta=5).Comment: 12 pages, 3 figure

    BIOMECHANICAL CONSIDERATIONS OF TAKEUMA-WALKING IN WATER

    Get PDF
    "TAKEUMA" is one of Japanese classic style of playing. Usually it is played on land, but in water, one can easier ambulate with TAKEUMA in water, for buoyancy and resistance force. The purposes of this study were to clarify biomechanical features of TAKEUMA-walking in water and to compare the motion characteristics of skilled TAKEUMA players with those of unskilled. The TAKEUMA-walking motions were recorded both in a water tank and on land. It was revealed that the body inclination to the forward direction would be a key feature of the well-trained TAKEUMA-walking, and even in unskilled subjects the relatively greater forward-inclined posture was preserved in water. It is important to handle and hold a TAKEUMA by using upper limbs, especially forearms, when walking with TAKEUMA in water

    Expression of vascular endothelial growth factor in patients with acute myocardial infarction

    Get PDF
    AbstractOBJECTIVEThe purpose of this study was to investigate the clinical significance of vascular endothelial growth factor (VEGF) in acute myocardial infarction (AMI). We also examined the involvement of peripheral blood mononuclear cells (PBMCs), which are a possible source of VEGF in AMI.BACKGROUNDVEGF is a potent endothelial cell–specific mitogen and could affect the outcome of AMI.METHODSThirty patients with AMI were used for this study. Serum and PBMCs were isolated from peripheral blood on days 1, 7, 14 and 21 after the onset of AMI. PBMCs were cultured at a density of 5 × 106cells/ml for 24 h. VEGF levels in serum and the culture media were measured by enzyme-linked immunosorbent assay using a specific anti-human VEGF antibody.RESULTSSerum VEGF levels elevated gradually after the onset of AMI and reached a peak on day 14. VEGF levels in the culture medium of PBMCs after incubation for 24 h (PBMC-VEGF) were maximally elevated 7 days after the onset. Maximum serum VEGF levels showed significant positive correlations with maximum creatine phosphokinase (CPK) levels (r = +0.70, p < 0.001), but maximum PBMC-VEGF levels did not correlate with maximum CPK levels. Patients showing improvement in left ventricular systolic function during the course of AMI showed significantly higher PBMC-VEGF levels than patients without improvement.CONCLUSIONSThe extent of myocardial damage contributes to the elevation of serum VEGF levels in AMI. VEGF produced by PBMCs may play an important role in the improvement of left ventricular function by promoting angiogenesis and reendothelialization after AMI

    Recent Muon g-2 Result in Deflected Anomaly-Mediated Supersymmetry Breaking

    Get PDF
    We study the deflected anomaly-mediated supersymmetry breaking (AMSB) scenario in the light of the recent result of the muon g-2 from Brookhaven E821 experiment. The E821 result suggests the deviation from the SM prediction, though there remain unsettled uncertainties. We find that the supersymmetric contribution to the muon g-2 can be \mathcal{O}(10^{-9}), large enough to fill the deviation, with other experimental constraints satisfied. In particular, the Higgs mass and b \to s \gamma put severe constraints on the model and large \tan\beta is favored to enhance the muon g-2.Comment: 13 pages, 6 figure

    Vacuum Stability Bound on Extended GMSB Models

    Full text link
    Extensions of GMSB models were explored to explain the recent reports of the Higgs boson mass around 124-126 GeV. Some models predict a large mu term, which can spoil the vacuum stability of the universe. We study two GMSB extensions: i) the model with a large trilinear coupling of the top squark, and ii) that with extra vector-like matters. In both models, the vacuum stability condition provides upper bounds on the gluino mass if combined with the muon g-2. The whole parameter region is expected to be covered by LHC at sqrt{s} = 14 TeV. The analysis is also applied to the mSUGRA models with the vector-like matters.Comment: 22 pages, 4 figure

    A村の特定健康診査受診者の非肥満者を対象とした健診結果の実態及び血糖と生活習慣の関連

    Get PDF
    目的:A村の特定健康診査受診者の非肥満者を対象とした健診結果の実態及び血糖と生活習慣の関連を明らかにする. 方法:A村の平成29年度特定健康診査受診者のうち,血圧や血糖等の服薬をしていない非肥満者533人を研究対象者とした.非肥満者533人を高血糖の有無による2群に分け,生活習慣との関連を分析した. 結果:健診結果では,非肥満者は,LDLコレステロールの平均値が特定健診受診者全体よりも高かった. 生活習慣では,非肥満者において高血糖群の方が定期的な運動をしている割合及び遅い時間の夕食をとっていない割合が有意に高く,生活習慣が良好な割合が高かった. 結論:非肥満者のうち高血糖の住民は,生活習慣には留意していると考えられた.今後は,詳細な生活習慣を確認し,その結果とともに健診結果に基づく指導が重要である.Objectives: The purpose of this study was to clarify the actual conditions of specific health checkups for non-obese individuals in A Village and the relationship between blood glucose and lifestyle habits. Method: The research participants were the 533 non-obese people who were not taking medication among of the all people who received a specific health checkup in A Village in 2017. We divided the 533 participants into two groups based on the presence or absence of hyperglycemia, and the relationship between blood glucose and lifestyle habits was analyzed. Results: Average LDL cholesterol was higher in the participants than in the recipients of specific health checkups overall. In terms of lifestyle habits, the proportion of participants in the hyperglycemic group who exercised regularly and those who did not eat dinner late at night was significantly higher than the non-hyperglycemic group, and the proportion of favorable lifestyle habits was higher. Conclusion: Non-obese people with hyperglycemia were considered to be aware of healthy lifestyle habits. It will be important for medical professional to ask more detailed questions about lifestyle during health checkups and to provide health guidance based on the results of blood test data.原

    Decreases in the Serum VLDL-TG/Non-VLDL-TG Ratio from Early Stages of Chronic Hepatitis C: Alterations in TG-Rich Lipoprotein Levels

    Get PDF
    BACKGROUND: The liver secretes very-low-density lipoproteins (VLDLs) and plays a key role in lipid metabolism. Plasma total triglyceride (TG) level variations have been studied in patients with hepatitis C virus (HCV)-related chronic hepatitis (CH-C). However, the results of these studies are variable. A homogenous assay protocol was recently proposed to directly measure the TG content in VLDL (VLDL-TG) and VLDL remnants. METHODOLOGY/PRINCIPAL FINDINGS: Using the assay protocol, we determined serum VLDL-TG levels in 69 fasting patients with biopsy-proven HCV-related chronic liver disease and 50 healthy subjects. Patients were classified into stages F0-F4 using the 5-point Desmet scale. Serum total TG levels in patients with non-cirrhotic (F1-F3) CH-C did not demonstrate significant differences compared with healthy subjects, but serum VLDL-TG levels did demonstrate significant differences. Mean serum VLDL-TG levels tended to decrease with disease progression from F1 to F4 (cirrhosis). Compared with healthy subjects, serum non-VLDL-TG levels significantly increased in patients with stages F2 and F3 CH-C; however, we observed no significant difference in patients with liver cirrhosis. Furthermore, the serum VLDL-TG/non-VLDL-TG ratio, when taken, demonstrated a significant decrease in patients with CH-C from the mildest stage F1 onward. CONCLUSIONS/SIGNIFICANCE: The decrease in serum VLDL-TG levels was attenuated by increase in non-VLDL-TG levels in patients with non-cirrhotic CH-C, resulting in comparable total TG levels. Results of previous studies though variable, were confirmed to have a logical basis. The decrease in the serum VLDL-TG/non-VLDL-TG ratio as early as stage F1 demonstrated TG metabolic alterations in early stages of CH-C for the first time. The involvement of TG metabolism in CH-C pathogenesis has been established in experimental animals, while conventional TG measurements are generally considered as poor indicators of CH-C progression in clinical practice. The serum VLDL-TG/non-VLDL-TG ratio, which focuses on TG metabolic alterations, may be an early indicator of CH-C
    corecore