• Title/Summary/Keyword: Pairings

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Effect of Speech Degradation and Listening Effort in Reverberating and Noisy Environments Given N400 Responses

  • Kyong, Jeong-Sug;Kwak, Chanbeom;Han, Woojae;Suh, Myung-Whan;Kim, Jinsook
    • Journal of Audiology & Otology
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    • v.24 no.3
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    • pp.119-126
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    • 2020
  • Background and Objectives: In distracting listening conditions, individuals need to pay extra attention to selectively listen to the target sounds. To investigate the amount of listening effort required in reverberating and noisy backgrounds, a semantic mismatch was examined. Subjects and Methods: Electroencephalography was performed in 18 voluntary healthy participants using a 64-channel system to obtain N400 latencies. They were asked to listen to sounds and see letters in 2 reverberated×2 noisy paradigms (i.e., Q-0 ms, Q-2000 ms, 3 dB-0 ms, and 3 dB-2000 ms). With auditory-visual pairings, the participants were required to answer whether the auditory primes and letter targets did or did not match. Results: Q-0 ms revealed the shortest N400 latency, whereas the latency was significantly increased at 3 dB-2000 ms. Further, Q-2000 ms showed approximately a 47 ms delayed latency compared to 3 dB-0 ms. Interestingly, the presence of reverberation significantly increased N400 latencies. Under the distracting conditions, both noise and reverberation involved stronger frontal activation. Conclusions: The current distracting listening conditions could interrupt the semantic mismatch processing in the brain. The presence of reverberation, specifically a 2000 ms delay, necessitates additional mental effort, as evidenced in the delayed N400 latency and the involvement of the frontal sources in this study.

Eight Confluent Acupoint Combinations Patterns: Data Mining and Network Analysis (데이터마이닝과 네트워크분석을 통한 팔맥교회혈의 배합 패턴 연구)

  • Min-Jeong Kwon;Da-Eun Yoon;Heeyoung Moon;Yeonhee Ryu;In-Seon Lee;Younbyoung Chae
    • Korean Journal of Acupuncture
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    • v.40 no.4
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    • pp.177-183
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    • 2023
  • Objectives : One of the crucial combinations of acupoints for treating various disorders involves the Eight Confluent acupoints. The present study aims to investigate the selection patterns of the Eight Confluent acupoints in clinical trials and determine the most frequent pairings through network analysis. Methods : The frequencies of the Eight Confluent acupoints were extracted from the Acusynth database, which includes data from 421 clinical investigations. We examined the degree distribution, eigenvector centrality, proximity centrality, and betweenness centrality of these acupoint combinations using network analysis. Results : Data mining revealed that among the Eight Confluent acupoints, PC6 and TE5 were the most commonly applied in the treatment of 30 disorders. Additionally, we identified the most frequently co-occurring pairs of Eight Confluent acupoints by network analysis which included PC6-GV20, SP4-GV4, LU7-LI4, TE5-PC7, GB41-SP6, KI6-BL62, and SI3-BL62. Conclusions : Through the application of data mining and network analysis, we have elucidated the selection patterns and combinations of the Eight Confluent acupoints. These findings provide valuable insights that can enhance doctors' understanding of clinical database-driven Eight Confluent acupoint selection patterns.

Tetrapolar incompatibility system of Pleurotus ostreatus new strain 'Miso' (신품종 '미소' 느타리버섯의 4극성 불화합 시스템)

  • Lee, Byung-Joo;Kim, Yong-Gyun;Kim, Hong-Kyu;Yang, Eye-Seog;Lim, Yong-Pyo
    • Journal of Mushroom
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    • v.7 no.4
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    • pp.141-149
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    • 2009
  • The sexual incompatibility system was investigated in the new strain Pleurotus ostreatus 'Miso'. Matings among monosporous progeny collected from fruiting bodies revealed that the new oyster mushroom is heterothallic and has a tetrapolar mating system. Single basidiospore isolates that did not have clamp connections were determined to be monokaryotic. Compatible parings of monokaryons were distinguishable macroscopically by the rapid growth and gross morphology to some extent but they were distinguished obviously by the presence of clamp connections from incompatible pairings under microscopic examination. Rarely dikaryotization was unidirectional with clamp connections only at the margin of one side of mating. In tetrapolarity of matings, four kinds of patterns, A1B1, A1B2, A2B1, and A2B2, were decided depending on compatibility tests in a parental strain with a mating factor of A1A2B1B2. The mating tests with the tester strains were performed for the detection of mating types on the rest of selected monokaryons.

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Phylogenetic Relationships and Cultural Characteristics among Inonotus obliquus Strains Collected in Korea (국내 수집 차가버섯 균주의 배양특성과 유전적 유연관계 분석)

  • Park, Hyun;Park, Won-Chull;Yoon, Kab-Hee;Chang, Ji-Youn;Ryu, Sung-Ryul;Ka, Kang-Hyeon;Lee, Bong-Hun
    • The Korean Journal of Mycology
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    • v.35 no.1
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    • pp.28-32
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    • 2007
  • Fruiting bodies of Inonotus obliquus were collected from the trunk of Betula ermani at 1,100 m of Mt. Odae. Diameter range of the trees at breast height (DBH) was $10{\sim}50$ cm and size range of the sclerotia was $8{\times}5{\sim}20{\times}16cm$. Relationships between the examined strains and Inonotus obliquus strain registered in National Center for Biotechnology Information (NCBI) were very near. And all of 10 strains except strains registered in NCBI showed high homologous characteristics by neighbour joining analysis of ITS sequence. Mycelial growth showed a big difference among strains. Mycelial growth of KFRI 744 was fastest and KFRI 739 was slowest. Difference of mycelial growth between KFRI 735 and 738 was slight, but the difference of mycelial growth between KFRI 744 and 739 was almost twice. Also weight reduction rate among strains showed some difference. KFRI 744 was highest and KFRI 741 was lowest. Vegetative incompatibilities were observed in all mycelial pairings except for KFRI 740-741 and KFRI 742-743 combinations.

Identity-Based Online/Offline Signcryption Without Random Oracles (ID기반 온라인/오프라인 사인크립션(Signcryption) 기법)

  • Park, Seung-Hwan;Kim, Ki-Tak;Koo, Woo-Kwon;Lee, Dong-Hoon
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.20 no.5
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    • pp.23-36
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    • 2010
  • Signcryption is a cryptographic primitive which offers authentication and confidentiality simultaneously with a cost lower than signing and encrypting the message independently. We propose a new cryptographic notion called Identity-based online/offline signcryption. The notion of online/offline scheme can be divided into two phases, the first phase is performed offline prior to the arrival of a message to be signed or encrypted and the second phase is performed online phase after knowing the message and the public key of recipient. The Online phase does not require any heavy computations such as pairings or exponents. It is particularly suitable for power-constrained devices such as smart cards. In this paper, we propose ID-based signcryption scheme and ID-based online/offline signcryption scheme where the confidentiality and authenticity are simultaneously required to enable a secure and trustable communication environment. To our best knowledge, this is the first ID-based online/offline signcryption scheme that can be proven secure in the standard model.

A Theoretical Examination of Economy as Viewed in Confucianist and Daesoon Thought: Focusing on Similarities (유학과 대순사상의 경제관 시론적 고찰 - 유사점을 중심으로 -)

  • An Yoo-kyoung
    • Journal of the Daesoon Academy of Sciences
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    • v.46
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    • pp.153-188
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    • 2023
  • This paper aims to confirm theoretical similarities and differences by comparing and considering the economic views of Neo-Confucianism and Daesoon Thought. Through this, there can be an examination of what implications traditional thought regarding economic views can have in today's social climate, which considers economic value to be the greatest value. This can also to help establish a desirable economic view of our society. In conclusion, it can be observed that economic issues are viewed in Daesoon Thought similarly to how they were perceived by Zhu Xi. Which is to say that both place greater relative importance on morality than material wealth. These systems of thought appear to place more emphasis on the spiritual world and moral conduct than on the material world and its economy. Therefore, when looking at the interpretation of loyalty and profit, nature and humanity, the heart and humanity, conscience and selfishness, and other such pairings, there is a tendency to focus more on the spiritual world and moral excellence than on the material world and the pursuit of wealth. These systems of thought acknowledge that material needs exist; however, both move to instill values such that human society pursues moral and spiritual ventures over material gain. Therefore, the position arrived upon by both is that people's morality is the highest good, and when people's morality is fully realized, all social problems, including economic problems, will be solved automatically. This is the theoretical structure and ideological characteristics that constitutes the economic viewpoints posited in both Zhu Xi's Neo-Confucianist thought and Daesoon Thought.