982 research outputs found
Split Spirit of Place, Yanghwajin
Abstract. In 1866, a massacre of Catholics happened at Yanghwajin which was a port and a military post. More than a hundred of Catholics were killed at the top of a hill that was later named 'Jeoldusan', which literally means 'a decapitating hill'. Soon after, Jeoldusan became a holy site for Catholics and the name was substituted from 'Yanghwajin'. A missionary cemetery was built in 1886 near Jeoldusan and a shrine and museum was built on Jeoldusan in 1967, which earned an architectural reputation. In the course of the rapid development of Seoul in 1970-80`s, Jeoldusan became an important traffic spot with expressways and subways. By reviewing documents and interviewing the visitors and passersby, it is revealed that there are big differences in recognition of this place among several groups of people. They showed a split understanding on the place according to their religions and knowledge of the history of this place
Geomagnetic field influences probabilistic abstract decision-making in humans
To resolve disputes or determine the order of things, people commonly use
binary choices such as tossing a coin, even though it is obscure whether the
empirical probability equals to the theoretical probability. The geomagnetic
field (GMF) is broadly applied as a sensory cue for various movements in many
organisms including humans, although our understanding is limited. Here we
reveal a GMF-modulated probabilistic abstract decision-making in humans and the
underlying mechanism, exploiting the zero-sum binary stone choice of Go game as
a proof-of-principle. The large-scale data analyses of professional Go matches
and in situ stone choice games showed that the empirical probabilities of the
stone selections were remarkably different from the theoretical probability. In
laboratory experiments, experimental probability in the decision-making was
significantly influenced by GMF conditions and specific magnetic resonance
frequency. Time series and stepwise systematic analyses pinpointed the
intentionally uncontrollable decision-making as a primary modulating target.
Notably, the continuum of GMF lines and anisotropic magnetic interplay between
players were crucial to influence the magnetic field resonance-mediated
abstract decision-making. Our findings provide unique insights into the impact
of sensing GMF in decision-makings at tipping points and the quantum mechanical
mechanism for manifesting the gap between theoretical and empirical probability
in 3-dimensional living space.Comment: 32 pages, 5 figures, 4 supplementary figures, 2 supplementary tables,
and separate 15 ancillary file
A Case of More Abundant and Dysplastic Adenomas in the Interposed Colon than in the Native Colon
We report a 60-year-old woman with intramucosal adenocarcinoma arising in the interposed colon, 40 years after the esophageal reconstruction for lye induced esophageal stricture. Although synchronous adenomas were also found in the native colon where the graft was taken, the number of adenomas was greater in the interposed colon and more dysplastic, even progressed to adenocarcinoma, than that of the native colon. The microsatellite instability-testing performed in the intramucosal carcinoma from interposed colon showed absence of microsatellite instability. Changing of location and functional deman]d of colonic segment, and the exposure to different intraluminal contents might have facilitated the adenomacarcinoma transformation in the interposed colon
Observation of Young's Double-Slit Interference with the Three-Photon N00N State
Spatial interference of quantum mechanical particles exhibits a fundamental
feature of quantum mechanics. A two-mode entangled state of N particles known
as N00N state can give rise to non-classical interference. We report the first
experimental observation of a three-photon N00N state exhibiting Young's
double-slit type spatial quantum interference. Compared to a single-photon
state, the three-photon entangled state generates interference fringes that are
three times denser. Moreover, its interference visibility of is
well above the limit of 0.1 for spatial super-resolution of classical origin.
The demonstration of spatial quantum interference by a N00N state composed of
more than two photons represents an important step towards applying quantum
entanglement to technologies such as lithography and imaging
In-rich InGaN/GaN quantum wells grown by metal-organic chemical vapor deposition
Growth mechanism of In-rich InGaN/GaN quantum wells (QWs) was investigated. First, we examined the initial stage of InN growth on GaN template considering strain-relieving mechanisms such as defect generation, islanding, and alloy formation at 730 degrees C. It was found that, instead of formation of InN layer, defective In-rich InGaN layer with thickness fluctuations was formed to relieve large lattice mismatch over 10% between InN and GaN. By introducing growth interruption (GI) before GaN capping at the same temperature, however, atomically flat InGaN/GaN interfaces were observed, and the quality of In-rich InGaN layer was greatly improved. We found that decomposition and mass transport processes during GI in InGaN layer are responsible for this phenomenon. There exists severe decomposition in InGaN layer during GI, and a 1-nm-thick InGaN layer remained after GI due to stronger bond strength near the InGaN/GaN interface. It was observed that the mass transport processes actively occurred during GI in InGaN layer above 730 degrees C so that defect annihilation in InGaN layer was greatly enhanced. Finally, based on these experimental results, we propose the growth mechanism of In-rich InGaN/GaN QWs using GI.open9
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