242 research outputs found

    RECENT FOOD CONSUMPTION PATTERN OF JAPANESE HOUSEHOLDS: DRIVING FORCES BEHIND WESTERNIZATION

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    A complete demand system for 11 aggregated food categories with 24 demographic variables, is specified following QUAIDS and is estimated using Japanese household level data. The estimation results suggest that westernization is due to the income effect and the tendency is further enhanced by the demographic factors.Food Consumption/Nutrition/Food Safety,

    Quantitative Imaging Assessment of Bioresorbable Scaffolds: Preprocedural Sizing and Acute Performance

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    The use of bioresorbable scaffolds has several challenges that justify careful assessment of this technology. In the randomised comparison, the Absorb everolimuseluting bioresorbable scaffolds showed similar one-year clinical outcomes to the everolimus-eluting Xience metallic stent, and side branch occlusion and other angiographic complications are not different in the acute performance. Implantation of an oversized Absorb scaffold in a relatively small vessel appears to be associated with a higher 1-year MACE rate driven by more frequent early MI. In the early Absorb studies, several failure modes of bioresorbable scaffolds were documented. To avoid scaffold dislodgement, appropriate lesion preparation is mandatory. In case of unsuccessful initial delivery, a second insertion of the same scaffold should be avoided. Adherence to antiplatelet therapy is of paramount importance to avoid acute or subacute scaffold thrombosis. QCA bifurcation was validated and clinical applicable. IVUS, OCT and MSCT could be used to assess long term bioresorption and serial changes in lumen dimension. Further investigation using intravascular imaging is needed to establish the relationship between acute potential mechanism and late adverse events

    Estimated pretreatment hemodynamic prognostic factors of aneurysm recurrence after endovascular embolization.

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    BACKGROUND:Hemodynamic factors play important roles in aneurysm recurrence after endovascular treatment. OBJECTIVE:Predicting the risk of recurrence by hemodynamic analysis using an untreated aneurysm model is important because such prediction is required before treatment. METHODS:We retrospectively analyzed hemodynamic factors associated with aneurysm recurrence from pretreatment models of five recurrent and five stable posterior communicating artery (Pcom) aneurysms with no significant differences in aneurysm volume, coil packing density, or sizes of the dome, neck, or Pcom. Hemodynamic factors of velocity ratio, flow rate, pressure ratio, and wall shear stress were investigated. RESULTS:Among the hemodynamic factors investigated, velocity ratio and flow rate of the Pcom showed significant differences between the recurrence group and stable group (0.630 ± 0.062 and 0.926 ± 0.051, P= 0.016; 56.4 ± 8.9 and 121.6 ± 6.7, P= 0.008, respectively). CONCLUSIONS:Our results suggest that hemodynamic factors may be associated with aneurysm recurrence among Pcom aneurysms. Velocity and flow rate in the Pcom may be a pretreatment prognostic factor for aneurysm recurrence after endovascular treatment

    Causal Dynamical Triangulation with Extended Interactions in 1+1 Dimensions

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    We study the Causal Dynamical Triangulation (CDT) with extended interactions in 1+1 dimensions applying the method in the non-critical string field theory (SFT) constructed by Ishibashi and Kawai. For this model, we solve Schwinger-Dyson's equation (SDE) for disk amplitude perturbatively, and find a matrix model in the continuum limit reproducing the SDE in the non-critical SFT approach as the loop equation.Comment: 16 pages, 4 figure

    Temperature-dependent magnetoresistance effects in FeSi/FeSi/FeSi trilayered spin valve junctions

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    Fe3Si/FeSi2/Fe3Si trilayered junctions were fabricated by facing targets direct-current sputtering combined with a mask method, and the spin valve signals of the junctions were studied in the temperature range from 50 to 300 K. Whereas the magnetoresistance ratio of giant magnetoresistance and tunnel magnetoresistance junctions monotonically increases with decreasing temperature, that of our samples has the maximum value around 80 K and decreases with decreasing temperature at lower than 80 K, which might be due to an increase in the electrical conductivity mismatch between the metallic Fe3Si layers and semiconducting FeSi2 interlayer in the low temperature range.Asia-Pacific Conference on Semiconducting Silicides and Related Materials — Science and Technology Towards Sustainable Electronics (APAC Silicide 2016), July 16-18, 2016, Fukuoka, Japa

    Role of Neuroimaging on Differentiation of Parkinson’s Disease and Its Related Diseases

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    An accurate diagnosis of Parkinson’s disease (PD) is a prerequisite for therapeutic management. In spite of recent advances in the diagnosis of parkinsonian disorders, PD is misdiagnosed in between 6 and 25% of patients, even in specialized movement disorder centers. Although the gold standard for the diagnosis of PD is a neuropathological assessment, neuroimaging has been playing an important role in the differential diagnosis of PD and is used for clinical diagnostic criteria. In clinical practice, differential diagnoses of PD include atypical parkinsonian syndromes such as dementia with Lewy bodies, multiple system atrophy, progressive supranuclear palsy, corticobasal degeneration, caused by a striatal dopamine deficiency following nigrostrial degeneration. PD may also be mimicked by syndromes not associated with a striatal dopamine deficiency such as essential tremor, drug-induced parkinsonism, and vascular parkinsonism. Moreover, difficulties are associated with the clinical differentiation of patients with parkinsonism from those with Alzheimer’s disease. In this review, we summarize the typical imaging findings of PD and its related diseases described above using morphological imaging modalities (conventional MR imaging and neuromelanin MR imaging) and functional imaging modalities (99mTc-ethyl cysteinate dimer perfusion single photon emission computed tomography, 123I-metaiodobenzylguanidine myocardial scintigraphy, and 123I-FP-CIT dopamine transporter single photon emission computed tomography) that are clinically available in most hospitals. We also attempt to provide a diagnostic approach for the differential diagnosis of PD and its related diseases in clinical practice
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