• Title/Summary/Keyword: mystery

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Dilemmas pertaining to three canals in the mesiobuccal root of a maxillary second molar: a case report

  • Arora, Ankit;Acharya, Shashi Rashmi;Saraswathi, Muliya Vidya;Sharma, Padmaja;Ather, Amber
    • Restorative Dentistry and Endodontics
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    • v.38 no.3
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    • pp.172-177
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    • 2013
  • The mesiobuccal root of the maxillary molars is well known to pose a hindrance during endodontic therapy. Presented here is a case of a maxillary left second molar where three canals were located in its mesiobuccal root with the use of visual and diagnostic aids. Difficulties encountered during the process of unveiling the tooth's internal anatomy were discussed. The dilemmas encountered pertained to the root canal configuration, the nomenclature of the extra canals, and the justification for the presence of a third canal. The root canal configuration of 3-2-1 was confirmed for the mesiobuccal root using information gained from clinical, radiographic, and multidetector computed tomography (MDCT) scan findings. This case demonstrates the need for efforts to locate extra canals in the mesiobuccal root of the maxillary molars as their internal anatomy remains a mystery.

Odd Fellows: Hannah Arendt and Philip Roth

  • Nadel, Ira
    • Journal of English Language & Literature
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    • v.64 no.2
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    • pp.151-170
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    • 2018
  • This paper examines the relationship and ideas of Hannah Arendt and Philip Roth including how they met, their correspondence and intellectual parallels, particularly in their shared criticism of Jewish ideals and culture in Europe and North America. It analyzes similarities in their careers and texts, especially between Eichmann in Jerusalem and Operation Shylock, as well as The Ghost Writer, while measuring their reception as social commentators and writers. Kafka was an important figure for both writers, Arendt's earliest writing engaged with the significance of Kafka in understanding and criticizing twentieth century political and cultural values in Europe. For Roth, Kafka offered a similar critique of moral principles he found corroded in North American Jewish life. Arendt connected with other writers, notably Isak Dinesen, W. H. Auden, Randall Jarrell and William Styron who further linked the two: he knew both Arendt and Roth and cited, incorrectly, a work by Arendt as the source for the key incident in his 1979 novel Sophie's Choice. He claimed it was Eichmann in Jerusalem; it was Arendt's The Origins of Totalitarianism. Arendt's reaction to Roth's fiction, however, remains a mystery: she died in 1975, before Roth began to seriously and consistently engage with Holocaust issues in works like The Ghost Writer (1979) and Operation Shylock (1993). Yet even in death they are joined. Their graves are only steps apart at the Bard College Cemetery in Annandale-on-Hudson, New York.

A Reasoning on the Central Column Hoisting Technique at pagoda of Hwangnyongsa Temple in 872 (872년 황룡사구층탑 찰주 드잡이 방법 추론 연구)

  • Park, Min-Chang;Han, Dong-Soo
    • Journal of architectural history
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    • v.30 no.5
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    • pp.7-16
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    • 2021
  • According to 「Hwangnyongsa Temple Central Column Record」 among the remaining documents, under reconstruction the pagoda of Hwangnyongsa&s 9th floor was completed in July 872 on the lunar calendar. At that time, King Kyeongmun worried about sarira under its central column, saying the central column does not move, and then He ordered to lift the central column. So his servants lifted it on November 6th 872 and checked the sarira and put it back on November 25th on the lunar calendar. 「Hwangnyongsa Temple Central Column Record」 did not document how to lift the central column which is tens of meters. therefore, this study inferred the way the central column of the pagoda of Hwangnyongsa was lifted in 872, left as a mystery. For that, this study set various hypotheses and it researched and analyzed hoisting technique that is a way to lift the pagoda of Hwangnyongsa and a column. In conclusion, this study inferred the most suitable hoisting technique for the pagoda of Hwangnyongsa at that time, based on the research and analysis of each chapter.

Discovery of a New Mechanism of Dust Destruction in Strong Radiation Fields and Implications

  • Hoang, Thiem;Tram, Le Ngoc;Lee, Hyseung;Ahn, Sang-hyeon
    • The Bulletin of The Korean Astronomical Society
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    • v.44 no.1
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    • pp.44.3-44.3
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    • 2019
  • Massive stars, supernovae, and kilonovae are among the most luminous radiation sources in the universe. Observations usually show near- to mid-infrared (NIR-MIR, 1-5~micron) emission excess from H II regions around young massive star clusters (YMSCs) and anomalous dust extinction and polarization towards Type Ia supernova (SNe Ia). The popular explanation for such NIR-MIR excess and unusual dust properties is the predominance of small grains (size a<0.05micron) relative to large grains (a>0.1micron) in the local environment of these strong radiation sources. The question of why small grains are predominant in these environments remains a mystery. Here we report a new mechanism of dust destruction based on centrifugal stress within extremely fast rotating grains spun-up by radiative torques, namely the RAdiative Torque Disruption (RATD) mechanism, which can resolve this question. We find that RATD can destroy large grains located within a distance of ~ 1 pc from a massive star of luminosity L~ 10^4L_sun and a supernova. This increases the abundance of small grains relative to large grains and successfully reproduces the observed NIR-MIR excess and anomalous dust extinction/polarization. We show that small grains produced by RATD can also explain the steep far-UV rise in extinction curves toward starburst and high redshift galaxies, as well as the decrease of the escape fraction of Ly-alpha photons observed from HII regions surrounding YMSCs.

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Edward Abbey's examination of existence in Desert Solitaire, The Journey Home, and Abbey's Road (에드워드 애비의 존재 탐구: 『사막의 은둔자』, 『집으로의 여행』, 그리고 『애비의 길』을 중심으로)

  • Kim, Eunseong
    • English & American cultural studies
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    • v.13 no.1
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    • pp.1-28
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    • 2013
  • Edward Abbey is regarded as one of the most influential ecological or nature writers. He celebrates the American Southwestern desert, argues for wilderness preservation, and advocates politically-oriented environmental activism to defend wilderness. He, however, does not classify himself as a nature writer, but rather places himself in the tradition of a kind of autography. His books show his fascination with the delicate harmony of the desert, and at the same time his personal journey over the desert. That is, eco-centered, he keeps his journey into the heart of the desert. He finds the desert harsh, brutal, fatal, and most of all, indifferent. The desert reveals simplicity and mystery, silence and revelation, and emptiness and fulfillment. This mythical and paradoxical essence of the desert draws him into the place and inspires redemptive humility and beauty, which, in turn, peel off his old ego or self. During his journey, Abbey tries to immerge himself with the desert yet remains intact and individual. The desert serves for him as the bedrock which sustains him and offers an opportunity to gain a new whole perspective. Like a pocket hunter in the desert whom he characterizes himself, he sticks to the desert to dig out ground for his existence and survival. Pulling the energy and force of the desert into his soul, Abbey is free, or compelled to contemplate what is beyond the human. His experience in and of the desert leads to a discovery of self and initiates selfhood.

"Married Chastity": The Language of Paradox in Shakespeare's "The Phoenix and the Turtle" ("결혼한 순결"-「불사조와 산비둘기」와 역설의 언어)

  • Park, WooSoo
    • Journal of English Language & Literature
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    • v.59 no.4
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    • pp.527-544
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    • 2013
  • William Shakespeare's dirge, "The Phoenix and the Turtle," is still a crux in the Shakespearean canon and interpretation. The poem is still believed a dark allegory dealing with some arcane and obscure courtly matters and politics. However, we cannot recover its allegorical significance. This interpretive situation enforces us to read the poem as a self-conscious artwork in terms of its paradoxical language and meta-poetic metaphors. Paradox, as a subspecies of metaphor, challenges categorical and judgmental absolutes, and produces a sense of wonder in reconciling the logically contradictory opposites. In this poem the urn containing the ashes of the phoenix and the turtle is the icon of the mysterious unity of art, born of the wonderful marriage of male and female. Shakespeare's poem demonstrates in itself the magical power of poetic language in transforming an elegy into an epithalamion. The union of the phoenix and the turtle defies the singularity of their respective entity, and at the same time it retains their distinctive particularity of the two-ness. This neo-Platonic mystery of the "married chastity" is a paradox which confounds reason and verifies the poetic truth of imaginative intellect. The marriage of Christian perichoresis is crystallized in the artwork of the urn, which is admired at by posterity, though the marriage was issueless, due to its passing virtue. "The Phoenix and the Turtle" depicts the metaphor-making process and its effect, the poem.

Placental Histopathology in COVID-19-Positive Mothers

  • Sherwani, Nikita;Singh, Neha;Neral, Arvind;Jaiswal, Jyoti;Nagaria, Tripti;Khandwal, Onkar
    • Journal of Microbiology and Biotechnology
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    • v.32 no.9
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    • pp.1098-1102
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    • 2022
  • The placenta is a captivating multifunctional organ of fetal origin and plays an essential role during pregnancy by intimately connecting mother and baby. This study explicates placental pathology and information about 25 placentas collected from the mothers infected with novel coronavirus (SARS-COV-2). So far, congenital transmission of SARS-CoV-2 seems to be remarkably uncommon in spite of many cases of COVID-19 during pregnancy. Out of the 25 placental tissue samples collected, none has shown gene expression of SARS-CoV-2 when confirmed by RT-PCR. At the same time, nasal and throat swab samples collected from newborns of SARS-CoV-2-positive mothers correspondingly tested negative by RT-PCR. The shielding properties of placental barriers against viral infections from mothers to newborns remains a mystery. Major histopathological findings have been recorded as choriodecidual tissue with necrosis, intramural fibrin deposition, chorionic villi with fibrosis, and calcification. Moreover, although recent findings are insufficient to prove direct placental transmission of COVID-19, the abundance of angiotensin-converting enzymes-2 (ACE-2) on the placental surface could potentially contribute to unpleasant outcomes during pregnancy as SARS-CoV-2 gains access to human cells via ACE-2. Finally, the significance of these findings is vague and needs further study.

A Study on the Goth Style in Toon Hertz's Fashion Illustration (툰 헤르츠의 패션 일러스트레이션에 나타난 고스 스타일)

  • Semi, Jeon;Haejung, Yum
    • Journal of Fashion Business
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    • v.26 no.5
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    • pp.62-75
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    • 2022
  • The purpose of this study was to analyze the types of aesthetic characteristics and their expression methods in the goth style expressed with the sensibility of an illustrator, using the work of Toon Hertz as an example. As a research method for this purpose, previous studies and books were used to examine the components of fashion illustration, the concept and aesthetic characteristics of goth style, and the world of Toon Hertz's work. In the qualitative studies, Toon Hertz's works were collected and the characteristics of each component were analyzed. As a result of analyzing the aesthetic characteristics, Distortion appeared as the main element of the human body, and the human body was distorted through the method of combining the human body with animals, plants, and other objects. History was mainly expressed through fashion elements. Victorian clothing was predominant, the color was mainly black, and it was characterized by decorations, such as fancy laces, corsets, and shirrings. The screen layout and the object components appeared as the main components of mystery. Sensuality was a major component of the human body, and it emphasized decadent and sensual images of a woman sitting with both legs apart or placing her hands on her legs or chest. Fear was the main component of the human body, and strangeness and fear were created by omitting or removing parts of the body, such as women's arms, legs, hands, or eyes.

QUANTUM CONTROL OF PARTICLES AT MATTER SURFACE OUTSIDE THE DOMAIN

  • Quan-Fang Wang
    • Nonlinear Functional Analysis and Applications
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    • v.28 no.1
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    • pp.11-36
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    • 2023
  • In this presentation, the particles at the matter surface (metal, crystal, nano) will be considered as the control target outside the physical domain. As is well known that control problems of quantum particles at surface had been investigated in various aspects in last couple of years, but the realization of control would become rather difficult than theoretical results. Especially, whether surface control would be valid? what kind of particles at what kind of matter surfaces can be controlled? so many questions still left as the mystery in the current research literature and papers. It means that the direct control sometime does not easy. On the other hands, control outside the physical domain is quite a interest consideration in mathematics, physics and chemistry. The main plan is to take the quantum systems operator (such as Laplacian ∆) in the form of fractional operator (∆s , 0 < s < 1), then to consider the control outside of physical domain. Fortunately, there are many published articles in the field of applied mathematics can be referred for the achievement of control outside of domain. The external quantum control would be a fresh concept to do the physical control, first in the theoretic, second in the computational, final in the experimental issues.

Solving the Mystery of Consistent Negative/Low Net Promoter Score (NPS) in Cross-Cultural Marketing Research

  • Seth, Sanjay;Scott, Don;Svihel, Chad;Murphy-Shigematsu, Stephen
    • Asia Marketing Journal
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    • v.17 no.4
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    • pp.43-61
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    • 2016
  • This paper has identified some theoretical reasons and empirical evidence for negative scores that occur in Japan and Korea or unstable NPS scores that can be experienced. A psychological analysis of NPS results sheds light on the validity of the negative NPS scores that are often found in Japan and Korea. Usually customer experience surveys utilize a "single stimulus" such as the "company" or the "company's products / services." However, in the case of the "recommendation to friend" question of the NPS system there are two stimuli namely the "company product/service" and the influence of "friends." Hence, the survey outcomes from this question can be very different when compared with other single stimulus questions such as "overall satisfaction" or "repurchase." Japanese and Korean people may have a positive attitude towards the company but they will provide low NPS scores because they are reflecting that they would not run the risk of ruining their relationships with their friends by making a recommendation. As a result, in the NPS system these people will be labeled as "detractors" when in fact they are "ambivalent customers." Using several Japanese and Korean based marketing research industry examples and case studies, different strategies are proposed to address the issue of negative scores in the NPS system in Japan and Korea. The Customers Psyche appears to be the key determinant factors for both types of behavioural items (items with a single stimulus as well as items with two stimuli).