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김현주,이광훈,김한준,John D. Pigott 한국지질과학협의회 2020 Geosciences Journal Vol.24 No.5
Fourth-order sequences in the northern central Miocene Gulf of Mexico are typically at or below seismic resolution and embedded in deformed strata with lateral thickness variations, making it difficult to image the corresponding paleo-depositional surfaces. Stratal or proportional slicing, involving proportionally slicing between two bounding reference horizons, can overcome these difficulties. However, if the target horizon can be readily interpreted, its horizon slice can provide the most accurate image. In this study, we first improved the resolution of the seismic data from the northern central Gulf of Mexico by bandwidth extension. Then, we autotracked a Miocene fourth-order sequence (M4) through the 50-Hz isofrequency volume obtained by the generalized spectral decomposition of the bandwidth-exteneded data. The horizon slice along M4 through the bandwidth-extended data provides a better image for incised-fluvial valleys and distributary channels compared with the stratal slice of the original data reported by earlier work. The corendered image of the variance and amplitude horizon slices further highlights the depositional features of M4. The horizon slice of M4 through the acoustic impedance volume, computed from inversion, shows that the incisedfluvial-valley fill is characterized by low impedance, suggesting good reservoir quality and that the distributary-channel fill is characterized by low to moderate impedance, suggesting fair to good reservoir quality. The definition of the horizon slice includes both the slice along the target horizon and those parallel to the reference horizon. We propose to call the slice along the target horizon a “horizon slice” and to use the term “horizon-parallel slices” for any slices parallel to an interpreted horizon.
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Higher Prevalence of Metabolic Syndrome in Child-adolescent Patients with Bipolar Disorder
Satyajit Mohite,Hanjing Wu,Shiva Sharma,Luca Lavagnino,Cristian P. Zeni,Terrence T. Currie,Jair C. Soares,Teresa A. Pigott 대한정신약물학회 2020 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.18 No.2
Objective: Previous studies have indicated a convergent and bidirectional relationship between metabolic syndrome (MetS) and bipolar disorder (BD). As most of these studies focused mainly on adults diagnosed with BD, our study aims to investigate and characterize metabolic disturbances in child-adolescents diagnosed with BD. Methods: We retrospectively examined the medical records of psychiatric hospitalizations with admitting diagnosis of BD in child-adolescents (age < 18 years). Body mass index (BMI), lipid profile, fasting blood glucose, and blood pressure were primary variables. National Cholesterol Education Program criteria were used to define MetS. Reference group data was obtained from the National Health and Nutrition Examination Survey study. Statistical analyses included t tests, chi-square tests, and Fisher’s exact tests. Results: We identified 140 child-adolescent patients with BD (mean age = 15.12 ± 1.70 years, 53% male). MetS was significantly more common in BD compared to the reference group: 14% (95% confidence interval [95% CI] 8−20) vs. 6.7% (95% CI 4.1−9.2), p = 0.001 with no significant difference by sex. MetS components were higher in the BD group, particularly BMI ≥ 95% (25% vs. 11.8%, p < 0.001) and high blood pressure (17% vs. 8%, p = 0.05). Moreover, female patients had lower odds of high blood pressure (odds ratio = 0.24 [95% CI 0.08−0.69], p = 0.005). Conclusion: Compared with the general child-adolescent population, the prevalence of MetS was significantly higher in patients with BD of same age. This reiterates the notion of an increased risk of MetS in patients diagnosed with BD; and thus, further exploration is warranted.
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