18,795 research outputs found
Han Gyeol Kim
No full text학위논문(석사)아주대학교 일반대학원 :의학계열,2012. 8I. INTRODUCTION 1
II. MATERIALS AND METHODS 2
A. Study subjects 3
B. Questionnaire 3
C. Genotyping 3
D. Statistical analysis 4
III. RESULTS 5
IV. DISCUSSION 9
V. CONCLUSION 12
REFERENCES 13
국문요약 16MasterBackground: G-protein beta3 subunit (GNB3) C825T polymorphism alters intracellular signal transduction, which may lead to motor or sensory abnormalities of the gastrointestinal tract. The aim of the present study was to evaluate the association of the GNB3 C825T polymorphism with susceptibility to overlap syndrome of functional dyspepsia (FD) and irritable bowel syndrome (IBS) in a Korean population.
Methods: One hundred sixty-seven patients with FD alone, 60 patients with IBS alone, 85 patients with the overlap of FD and IBS, and 434 asymptomatic healthy subjects participated in the study. Genotyping for GNB3 C825T polymorphism was performed using their blood samples.
Results: No association of genotype in subjects with FD alone, IBS alone or overlap phenotype compared to that in controls was detected. The frequency of GNB3 C825T CT and TT genotypes relative to the CC genotype for the phenotypes of FD alone, IBS alone, and the coexistence of FD and IBS did not significantly differ. Comparison of the TT genotype with the CC/CT genotype showed no significant association for each phenotype group.
Conclusions: There is no apparent association of the GNB3 C825T polymorphism with the susceptibility to FD, IBS or the overlap of FD and IBS. A larger-scale study and further investigation on other candidate genes are required
RootBot: root-inspired soft-growing robot for high-curvature directional excavation
No full textBio-inspired robotics garners a significant interest with an aim to improve performance and efficiency in a variety of geotechnical engineering practices. Particularly, the urban environment calls for a new robotic system that can excavate and navigate freely in the subsurface. This study presents a new soft-growing robotic system, RootBot, which exploits inspiration from plant root growth to excavate with steering and directional excavation capabilities through complicated routes and confined spaces. RootBot is designed by incorporating a locomotion mechanism modeled after the plant root growth mechanisms with excavation and discharge systems inspired by tunnel boring machines. A prototype of the RootBot demonstrates several unique features and abilities including directional excavation with a planar motion, a retractive motion, and a sharp steering ability of more than 90 & DEG; rotation with a curvature radius less than twice the width of the excavation head. A series of meter-scale experiments demonstrate that the prototype RootBot can effectively excavate and advance in wet-compacted sand. It can steer at high curvature and even pull back and quarter-turn at any point along a straight path. The RootBot is expected to be useful in various geotechnical and urban engineering practices, including directional ground excavation, navigation through a complicated, curved route to pass by unexpected underground obstacles and soil removal in inaccessible and confined spaces for buried pipe repairs.
Pore clogging growth behaviors in column scale experiment
No full textThis dataset consists of X-ray images that capture the growth process of pore clogging and data analyzed to visualize it. Suspended fine particles(powdered activated carbon; Yakuri co., Kyoto, Japan) with water are flown through a water-saturated sand pack(Ottawa 20/30 sand; U.S. Silica, Frederick, MD, U.S.A.). Clogging growth behaviors in uniformly packed beds are monitored with X-ray CT. A series of column experiments are conducted with X-ray computed tomography (X-ray CT) imaging while varying the flow velocity. The experiment consisted of 6 groups, 3 of which were named LS group, and three were named HS group. Throughout clogging growth, the patterns of clogging are visualized with X-ray CT image analysis. Each longitudinal and horizontal clogging growth behavior is presented as the spatial distribution of mass in the column.-This includes the X-ray CT images for Test1, and links to the datasets of the remaining Test2 to Test6 images
Mirror mirror
No full textWhen choosing what to wear, people often look in a mirror to try, mix and match clothing items to evaluate the fit on their body. In retail, magic mirrors for virtual garment fitting allow users to evaluate clothing items without actually wearing them. However, despite the available designs and fabrics often it is still difficult to find something suitable. What if we can not only select items, but also design items in front of the mirror and have them fabricated on the spot? We propose a personal clothing design system for use at home. Garments are projected directly on the user’s body, and the user can see through the mirror reflection as if the clothes are really “worn” on the body. With on-body and mid-air gestures, designs are created and when ready, can be fabricated into real garments
Worte ohne Lieder
No full textPublished„Es gibt kein richtiges Leben im falschen.“ – „Philosophie ist das Allerernsteste, aber so ernst wieder auch nicht.“ – „Aufgabe von Kunst heute ist es, Chaos in die Ordnung zu bringen.“ Solche pointierten Formulierungen haben Theodor W. Adorno in weiten Kreisen bekannt gemacht, und oft werden sie in falscher Vereindeutigung für die komplexe gedankliche Bewegung seiner Texte substituiert. Nichtsdestoweniger leben Adornos Texte von der Spannung, die von seiner mitunter hermetischen, oft aber unvermutet anschaulichen und von polemischem Witz immer wieder durchbrochenen Sprache ausgeht. Das wird auch und gerade in jenem Bereich seines Schreibens deutlich, der auf alle anderen ausgestrahlt hat, und dem Adorno die prägnant doppelsinnige Bezeichnung 'Musikalische Schriften' gab; ähnlich, wie er in späteren Jahren von 'Ästhetischer Theorie' sprach. Dieser Band widmet sich aus interdisziplinärer Perspektive Aspekten der Sprache, des Stils und des Schreibens, insbesondere aber dem Verhältnis von sprachlich artikuliertem Gedanken und musikalischem Denken bei Adorno. Mit Beiträgen von Max Beck und Nicholas Coomann, Lars Fischer, Julia Freund, Wolfgang Fuhrmann, Gabriele Geml, Pola Groß, Christian Grüny, Hans-Joachim Hinrichsen, Han-Gyeol Lie, Cosima Linke, Karsten Mackensen, Claus-Steffen Mahnkopf, Michael Schwarz, Elettra Villani, Boris Voigt und Sophie Zehetmayer
Anisotropic suppression of octahedral breathing distortion with the fully strained BaBiO3/BaCeO3 heterointerface
No full textWhile the physiochemical effects of octahedral tilting and rotating distortions have been
studied extensively, octahedral breathing distortion (OBD) at heterointerfaces has rarely
been explored. Here, we investigated OBD in fully strained BaBiO3 (BBO)
epitaxial films by making a new type of oxide heterointerface with non-breathing
BaCeO3 epitaxial films. The integration of first-principles calculations with
experimental observations of optical spectroscopy revealed that the oxygen displacement
modes in BBO became disordered within six unit cells at the heterointerface and the
surface. Controlling OBD in perovskite oxide thin films provides a means to exploit
emerging material properties
Double-Layer Buffer Template to Grow Commensurate Epitaxial BaBiO3 Thin Films
No full textWe propose a BaCeO3/BaZrO3 double-layer buffer template, grown on a SrTiO3 substrate, for epitaxial growth of a target oxide film with large lattice constants of over 4.1 . Lattice mismatch from the substrate was mostly accommodated for by a BaZrO3 arbitrating layer. Having an ideal in-plane lattice structure, BaCeO3 served as the main-buffer to grow the target material. We demonstrated commensurate epitaxy of BaBiO3 (BBO,a = 4.371 ) utilizing the new buffer template. Our results can be applied to heteroepitaxy and strain engineering of novel oxide materials of sizable lattice constants. © Author(s) 20161421sciescopu
Mirror mirror
No full textWhen choosing what to wear, people often use mirrors to try clothing items and see the fit on their body. What if we can not only evaluate items in front of the mirror but also design items and have them fabricated on the spot
Controllable Thickness Inhomogeneity and Berry Curvature Engineering of Anomalous Hall Effect in SrRuO3 Ultrathin Films
No full textIn quantum matters hosting electron−electron correlation and spin−orbit coupling, spatial inhomogeneities, arising from competing ground states, can be essential for understanding exotic topological properties. A prominent example is Hall anomalies observed in SrRuO 3
films, which were interpreted in terms of either magnetic skyrmion-induced topological Hall effect or inhomogeneous anomalous Hall effect (AHE).
To clarify this ambiguity, we systematically investigated the evolution of AHE with controllable inhomogeneities in SrRuO 3 film thickness (t SRO ).
By exploiting the step-flow growth of SrRuO 3 films, we induced a microscopically ordered stripe pattern with one-unit-cell differences in t SRO .
The associated spatial distribution of momentum-space Berry curvatures enables a two-channel AHE with hump-like Hall anomalies, which can be continuously engineered according to non-integer t SRO . We further microscopically characterized the stripe-like ferromagnetic domains and two-step magnetic switching behavior in the inhomogeneous SrRuO 3 film. These unique features can be utilized to identify the two-channel AHE model and understand its microscopic origin. © 2020 American Chemical Society11Nsciescopu
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