Analysis of the Factors Influencing Consumers’ Preferences for Rice: Locally Produced Versus the Imported in the Ga East Municipality of the Greater Accra Region of Ghana

( Piao¸ S. Y. ),( Z. R. Li ),( Y. C. Sun ),( J. I. Lee ),( Y. E. Amanor ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2020 강원 농업생명환경연구 Vol.32 No.S

Rice is an important staple cereal for many households in Ghana. This study examines the factors that influence consumers’ preference for rice. Using questionnaires, 300 rice consumers, who were sampled across the municipality, were interviewed. Descriptive statistics, factor analysis, and multinomial logistic regression model were used to analyze the obtained data. The rice-related attributes that showed marked influence on consumers’ preference for rice were packaging quality, swelling capacity, stickiness of grains after cooking, percentage of broken grains, market availability, price, and degree of whiteness. Therefore, the stakeholders should implement strategies to improve these rice-related attributes and enhance the rice post-harvest chain.

A Q Methodology Analysis of Chinese Policy Makers' Perceptions of China's Foreign Policy Decision-Making Process concerning South Korea's THAAD Deployment

Long Piao(Long Piao),Kwangho Jung(Kwangho Jung) 한국학술연구원 2022 Korea Observer Vol.53 No.4

This paper explores the diverse ways Chinese policymakers view the foreign policy process in China. Two approaches characterize conventional accounts of the foreign policy decision-making process. One of these, based on Graham Allison's rational, organizational, and bureaucratic politics models, focuses on intragovernmental aspects of foreign policy decision-making processes, while the other highlights extra-governmental domestic and foreign factors. However, these approaches have neglected the question of who leads foreign policy and how state, society, and grassroots interact through coalition. We interviewed Chinese scholars and foreign policy experts using Q statements to explore China's foreign policy response to South Korea's deployment of THAAD. Our findings offer new theoretical insights into China's foreign policy process by identifying statedriven, grassroots-based, and state-society coalition models.

소비자 프라이버시 보호에 관한 다항식 기반 연구

박연희(Yanji Piao),김민지(Minji Kim) 한국IT서비스학회 2020 한국IT서비스학회지 Vol.19 No.1

With the development and widespread application of online shopping, the number of online consumers has increased. With one click of a mouse, people can buy anything they want without going out and have it sent right to the doors. As consumers benefit from online shopping, people are becoming more concerned about protecting their privacy. In the group buying scenario described in our paper, online shopping was regarded as intra-group communication. To protect the sensitive information of consumers, the polynomial-based encryption key sharing method (Piao et al., 2013; Piao and Kim, 2018) can be applied to online shopping communication. In this paper, we analyze security problems by using a polynomial-based scheme in the following ways : First, in Kamal’s attack, they said it does not provide perfect forward and backward secrecy when the members leave or join the group because the secret key can be broken in polynomial time. Second, for simultaneous equations, the leaving node will compute the new secret key if it can be confirmed that the updated new polynomial is recomputed. Third, using Newton s method, attackers can successively find better approximations to the roots of a function. Fourth, the Berlekamp Algorithm can factor polynomials over finite fields and solve the root of the polynomial. Fifth, for a brute-force attack, if the key size is small, brute force can be used to find the root of the polynomial, we need to make a key with appropriately large size to prevent brute force attacks. According to these analyses, we finally recommend the use of a relatively reasonable hash-based mechanism that solves all of the possible security problems and is the most suitable mechanism for our application. The study of adequate and suitable protective methods of consumer security will have academic significance and provide the practical implications.

Rapid Identification and Characterization of Antioxidants from Ligularia fischeri

Xiang-Lan Piao,Xiao-Yuan Mi,Yan-Ze Tian,Qian Wu,Hui-Shan Piao,Zhikai Zeng,Xiangshu Piao,Ding Wang 대한약학회 2009 Archives of Pharmacal Research Vol.32 No.12

The objectives of this study were to investigate the radical-scavenging activity of Ligularia fischeri on oxidative damage by the radical 1,1-diphenyl-2-picrylhydrazyl (DPPH) and to rapidly identify the active components using the bioassay-linked fractionation method. The MeOH extract and fractions of CH2Cl2, BuOH, and H2O from L. fischeri showed DPPH radical-scavenging effects in a dose-dependent manner (p < 0.01). In particular, the BuOH fraction had the most effective (p < 0.05) antioxidative capacity. The active constituents from the BuOH fraction of L. fischeri were rapidly isolated by bioassay-linked HPLC method and identified as hyperoside and 2''-acetylhyperoside with potent antioxidant effects against the DPPH radical, with IC50 values of 1.31 and 7.09 μg/mL, respectively. They have not been reported from L. fischeri yet.

Mechanosensitivity of voltage-gated K⁺ currents in rat trigeminal ganglion neurons

Piao, Lin,Ying Li, Hai,Park, Chul-Kyu,Cho, Ik-Hyun,Piao, Zheng Gen,Jung, Sung Jun,Choi, Se-Young,Lee, Sung Joong,Park, Kyungpyo,Kim, Joong-Soo,Oh, Seog Bae Wiley Subscription Services, Inc., A Wiley Company 2006 JOURNAL OF NEUROSCIENCE RESEARCH - Vol.83 No.7

<P>We investigated the mechanosensitivity of voltage-gated K<SUP>+</SUP> channel (VGPC) currents by using whole-cell patch clamp recording in rat trigeminal ganglion (TG) neurons. On the basis of biophysical and pharmacological properties, two types of VGPC currents were isolated. One was transient (I<SUB>K,A</SUB>), the other sustained (I<SUB>K,V</SUB>). Hypotonic stimulation (200 mOsm) markedly increased both I<SUB>K,A</SUB> and I<SUB>K,V</SUB> without affecting their activation and inactivation kinetics. Gadolinium, a well-known blocker of mechanosensitive channels, failed to block the enhancement of I<SUB>K,A</SUB> and I<SUB>K,V</SUB> induced by hypotonic stimulation. During hypotonic stimulation, cytochalasin D, an actin-based cytoskeletal disruptor, further increased I<SUB>K,A</SUB> and I<SUB>K,V</SUB>, whereas phalloidin, an actin-based cytoskeletal stabilizer, reduced I<SUB>K,A</SUB> and I<SUB>K,V</SUB>. Confocal imaging with Texas red-phalloidin showed that actin-based cytoskeleton was disrupted by hypotonic stimulation, which was similar to the effect of cytochalasin D. Our results suggest that both I<SUB>K,A</SUB> and I<SUB>K,V</SUB> are mechanosensitive and that actin-based cytoskeleton is likely to regulate the mechanosensitivity of VGPC currents in TG neurons. © 2006 Wiley-Liss, Inc.</P>

Multi-depth three-dimensional image encryption based on the phase retrieval algorithm in the Fresnel and fractional Fourier transform domains

Piao, Mei-Lan,Liu, Zi-Xiong,Piao, Yan-Ling,Wu, Hui-Ying,Yu, Zhao,Kim, Nam The Optical Society 2018 Applied optics Vol.57 No.26

An ensemble correlation-based gene selection algorithm for cancer classification with gene expression data.

Piao, Yongjun,Piao, Minghao,Park, Kiejung,Ryu, Keun Ho Oxford University Press 2012 Bioinformatics Vol.28 No.24

<P>Gene selection for cancer classification is one of the most important topics in the biomedical field. However, microarray data pose a severe challenge for computational techniques. We need dimension reduction techniques that identify a small set of genes to achieve better learning performance. From the perspective of machine learning, the selection of genes can be considered to be a feature selection problem that aims to find a small subset of features that has the most discriminative information for the target.</P>

Prognostic Value of T Cell Immunoglobulin Mucin-3 in Prostate Cancer

Piao, Yong-Rui,Piao, Long-Zhen,Zhu, Lian-Hua,Jin, Zhe-Hu,Dong, Xiu-Zhe Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.6

Background: Optimal treatment for prostate cancer remains a challenge worldwide. Recently, T cell immunoglobulin mucin-3 (TIM-3) has been implicated in tumor biology but its contribution prostate cancer remains unclear. The aim of this study was to investigate the role of TIM-3 as a prognostic marker in patients with prostate cancer. Methods: TIM-3 protein expression was determined by immunohistochemistry and Western blotting in 137 prostate cancer tumor samples and paired adjacent benign tissue. We also performed cell proliferation assays using 3-(4,5-dimethylthiazol-2yl)-2,5-diphenyl- 2H tetrazolium bromide (MTT) and cell invasion assays. The effects of small interfering RNA (siRNA)-mediated knockdown of TIM-3 (TIM-3 siRNA) in two human prostate cancer cell lines were also evaluated. Results: TIM-3 expression was higher in prostate cancer tissue than in the adjacent benign tissue (P<0.001). High TIM-3 expression was an independent predictor of both recurrence-free survival and progression-free survival. TIM-3 protein was expressed in both prostate cancer cell lines and knockdown suppressed their proliferation and invasion capacity. Conclusions: TIM-3 expression is associated with a poor prognosis in prostate cancer. Taken together, our resutlts indicate that TIM-3 is a potential prognostic marker in prostate cancer.

박종화 역사소설 『금삼의 피』의 연산군 형상 연구

박은숙 ( Piao Yinshu ),박용애 ( Piao Yongai ) 중국한국(조선)어교육연구학회 2021 한국(조선)어교육연구 Vol.17 No.0

This essay studies Park Jong-Hwa and the image of Yeonsan Gun in his historical novel, Keunmsam-Eue-pee, through analyzing the differences between the historical and the fictional images. Keunmsam-Eue-pee is the first work which depicts Yeonsan Gun different from the historical records. After the Keunmsam-Eue-pee, in the complicated progress of Korean Modern History, Yeonsan Gun frequently appears in various medias such as novels, movies and plays ect., which testifies that the interests in the image of Yeonsan Gun as a common man with psychological complexity and worries are aroused. The novel Keunmsam-Eue-pee describes Yeonsan Gun from three pespectives: the son revenging for his mother, the king abusing power and violence, as well as the man with loneliness, unease and absence of emotion. That is to say, unlike the historically recorded Yeonsan Gun, in Keunmsam-Eue-pee, he is portrayed as a living man true to life. As the novel is composed when the Korea is under the rule of Japanese Imperialism, during that period, the destructive and rebellious image of Yeonsan Gun indirectly reflects the dissatisfactory and resistance against the Japanese Imperialism. In modern society, the reinterpreted image of Yeonsan Gun has renewed meaning that people should value the emotion and communication with others around.

평양시 삼석구역 호남리에서 새롭게 조사된 고구려 석실봉토묘의 발굴정형에 대하여

박찬규(Piao, Can Kui),정경일(Zheng, Jingri) 건국대학교 인문학연구원 2014 통일인문학 Vol.60 No.-

2013년 10월, 북한사회과학원 고고학연구소에서는 평양시 삼석구역 호남리에서 호남리 19호, 20호, 21호 등 고구려시기 석실봉토묘 3기를 새롭게 발굴정리하였다. 발굴조사 일부 기간에 중국 연변대학 인문사회과학학원 역사학부 박찬규, 정경일 교수가 참가하였다. 호남리 19호 무덤은 안길과 주검칸으로 이루어진 지상식 석실봉토단실묘이다. 안길은 주검칸의 남벽 중심에서 남쪽으로 길게 나 있다. 주검칸의 입구에는 장방형의 막음돌이 세워져 있고 막음돌의 안쪽에는 문턱시설이나 있다. 주검칸의 평면생김새는 남북으로 긴 장방형인데 주검칸 가운데에는 평면이 장방형인 관대시설이 남북으로 길게 놓여있다. 이 무덤에서는 머리가 없는 못대가 1점 나왔다. 무덤의 축조시기는 6세기로 보인다. 호남리 20호 무덤은 안길과 주검칸으로 이루어진 지상식의 단실묘이다. 안길은 주검칸 남벽 중심에서 남쪽으로 길게 나 있다. 주검칸의 평면생김새는 남북으로 긴 장방형인데 주검칸 입구에는 장방형의 문턱시설이 있다. 주검칸의 동, 서 양쪽에는 배수시설이 있으며 바닥에는 관대가 설치되어 있다. 유물로는 쇠로 만든 관못이 16점 드러났다. 무덤의 축조시기는 19호 무덤과 같은 시기인 6세기이다. 호남리 21호 무덤은 안길과 주검칸으로 이루어진 반지하식의 석실봉토단실묘이다. 주검칸의 평면생김새는 방형에 가까운 장방형인데 주검칸에서는 관대시설을 찾아볼 수 없었다. 유물로 4점의 쇠관못이 드러났다. 무덤의 축조시기는 그 구조로 보아 5~6세기의 것으로 판단된다. 이번에 발굴된 무덤가운데서 호남리 19호, 20호 무덤은 고구려시기의 석실봉토묘의 유형을 더욱 세분화할 필요성을 안겨주는 귀중한 자료이다. 특히 20호 무덤에서는 지금까지 볼 수 없었던 가로 놓인 관받침과 같은 시설이 나타난 것은 고구려 무덤형식에서는 보기 드문 것으로서 고구려 석실봉토묘 구조의 다양성을 보여주는 또 하나의 실례라고 말할 수 있다. In October 2013, The North Korean Academy of Social Sciences Institute of Archaeology discovered three Koguryo stone chamber tombs, including Tomb No.19, Tomb No.20 and Tomb No.21 in Hunan Lane. During the investigation, Piao Cankui and Zheng Jingri, two professor from the Department of History of Yanbian University in China took part in this excavation. Tomb No.19 in Hunan Lane is a stone chamber tombwhich is on the ground with a single room. It is made up of a tomb passage and a burial room. The tomb passage is located at the central part of south wall of the burial room. There is a rectangular obturating stone at the entrance of the burial room and also a threshold inside the obturating stone. Tombshape,and the north-south direction is longer than the east-west direction. A rectangular platform lies at the central of the tomb, with the both ends facing north and south respectively. One coffin was excavated in the tombbut only the body was found.Tomb No.19 in Hunan Lane existed in about the 6th Century. Tomb No.20 in Hunan Lane is a single chamber tomb which is on the ground. It is made up of a tomb passage and a burial room. The tomb passage is located at the central part of south wall of the burial room.The tomb passage is located at the central part of south wall of the burial room. The tomb passage is located at the central part of south wall of burial rooms. A threshold laid inside the entrance in burial rooms, also there are drainage facilities on both sides in the room and a coffin platform on the ground. Sixteen iron coffins were excavated in the tomb. Tomb No.20 in Hunan Lane also existed in aboutthe 6th Century as Tomb No.19. Tomb No.21 in Hunan Lane is a stone chamber tomb which is Half underground with a single room. It is made up of a tomb passage and a burial room. The tombshape, and there was no coffin platform on the ground. Four iron coffinnails were excavated in the tomb. Tomb No.21 in Hunan Lane existed in around the 5th to 6th Century. The excavation of these three tombs in Hunan Lane provided valuable information for further subdivision of the type of Koguryo stone chamber tombs. In particular, there are several thwart pad stones under the coffin platform that is extremely rare in Koguryo mausoleum, which provided new substantial information for further research about the structure of Koguryo stone chamber tomb.