• Title/Summary/Keyword: Munn

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APPROXIMATELY LOCAL DERIVATIONS ON ℓ1-MUNN ALGEBRAS WITH APPLICATIONS TO SEMIGROUP ALGEBRAS

  • Ahmad Alinejad;Morteza Essmaili;Hatam Vahdati
    • Communications of the Korean Mathematical Society
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    • v.38 no.4
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    • pp.1101-1110
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    • 2023
  • At the present paper, we investigate bounded approximately local derivations of ℓ1-Munn algebra 𝕄I(𝒜), where I is an arbitrary non-empty set and 𝒜 is an approximately locally unital Banach algebra. Indeed, we show that if 𝒜B(𝒜, 𝒜*) and B𝒜(𝒜, 𝒜*) are reflexive, then every bounded approximately local derivation from 𝕄I(𝒜) into any Banach 𝕄I(𝒜)-bimodule X is a derivation. Finally, we apply this result to study bounded approximately local derivations of the semigroup algebra ℓ1(S), where S is a uniformly locally finite inverse semigroup.

Gray Mold Neck Rot of Onion Caused by Botrytis allii in Korea (Botrytis allii에 의한 양파 잿빛썩음병)

  • 박숙영;이동현;정희정;고영진
    • Korean Journal Plant Pathology
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    • v.11 no.4
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    • pp.348-352
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    • 1995
  • Severe gray mold neck rot of onion occurred in most farmers' fields in the southern part of Korea, and 20∼50% of onions were infected by the disease at Goheung, Chonnam, in 1994. Symptoms of the disease appeared on the lower leaves near the soil surface in late February. The symptoms initially appeared as yellowish blotch with compact gray mold on the surface of the infected leaves and developed to blast of the aboveground parts of onions. As brown to dark brown symptoms progressed around the necks of onion later, the bulbs were rotting gradually. Botrytis sp. repeatedly isolated from the lesions produced the typical symptom on the neck of healthy onion 7 days after wound inoculation of conidial suspension of the fungus. The fungus reisolated from the bulbs was identified as Botrytis allii Munn based on the morphological and cultural characteristics and pathogenicity. This is first report of a gray mold neck rot of onion in Korea.

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A New Link-Based Single Tree Building Algorithm for Shortest Path Searching in an Urban Road Transportation Network

  • Suhng, Byung Munn;Lee, Wangheon
    • Journal of Electrical Engineering and Technology
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    • v.8 no.4
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    • pp.889-898
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    • 2013
  • The shortest-path searching algorithm must not only find a global solution to the destination, but also solve a turn penalty problem (TPP) in an urban road transportation network (URTN). Although the Dijkstra algorithm (DA) as a representative node-based algorithm secures a global solution to the shortest path search (SPS) in the URTN by visiting all the possible paths to the destination, the DA does not solve the TPP and the slow execution speed problem (SEP) because it must search for the temporary minimum cost node. Potts and Oliver solved the TPP by modifying the visiting unit from a node to the link type of a tree-building algorithm like the DA. The Multi Tree Building Algorithm (MTBA), classified as a representative Link Based Algorithm (LBA), does not extricate the SEP because the MTBA must search many of the origin and destination links as well as the candidate links in order to find the SPS. In this paper, we propose a new Link-Based Single Tree Building Algorithm in order to reduce the SEP of the MTBA by applying the breaking rule to the LBA and also prove its usefulness by comparing the proposed with other algorithms such as the node-based DA and the link-based MTBA for the error rates and execution speeds.

A Study on the Fahion Design of MÜNN from the Perspective of Defamiliarization (낯설게 하기(Defamiliarization)를 통해 본 Münn의 패션 디자인 고찰)

  • Lim, Boyeon;Kim, Jiyoung
    • Journal of Fashion Business
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    • v.26 no.4
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    • pp.1-17
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    • 2022
  • In the fashion industry, the demand for new perspectives to express creativity has always been high. Expression of new perspectives allows creative ideas to emerge, thereby breaking away from habitual and familiar perceptions. The purpose of this study is to identify and analyze how the theory of defamiliarization is being applied in fashion design by the brand Münn, which claims defamiliarization as a design philosophy. The study examined the concepts and the characteristics of Viktor Shklovsky by literature review and derived the main characteristics of the defamiliarization theory for fashion design analysis based on studies that used defamiliarization in other fields. Furthermore, after analyzing Münn's collection, we found how the main characteristics of defamiliarization derived from reviews were expressed in Münn's designs. The defamiliarization in Münn's collection was first, 'breakaway from stereotype' appeared through re-recognition of perception and unexpected use of heterogeneous materials. Second, 'distortion and analogy through image' was revealed through the East and West clothing-making methods, which broke away from the stereotype of image and the juxtaposition and cultural reconstruction of details. Third, 'transition of viewpoint' was shown as an avant-garde sense through the conversion of usage purpose of design, material, or items in which subjects and objects were converted with conceptual design and material or silhouette.

CYP1A1 MspI Polymorphism and Cervical Carcinoma Risk in the Multi-Ethnic Population of Malaysia: a Case-Control Study

  • Tan, Yee Hock;Sidik, Shiran Mohd;Husain, Sharifah Noor Akmal Syed;Lye, Munn Sann;Chong, Pei Pei
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.1
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    • pp.57-64
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    • 2016
  • Background: Tobacco smoking is considered a risk factor for cervical cancer development due to the presence of tobacco based carcinogenic metabolites in cervical cells of female smokers. In this study, we investigated the role of the T3801C (MspI) polymorphism of CYP1A1, a gene encoding an enzyme necessary for the initiation of tobacco based carcinogen metabolism, on cervical cancer risk. The T to C substitution may alter CYP1A1 activities, potentially elevating cervical cancer risk. Since results of gene-disease association studies vary according to the study population, the multi-ethnic population of Malaysia provides an excellent representative cohort for identifying and comparing the cervical cancer risk among the 3 major ethnics in Southeast Asia in relation to CYP1A1 MspI polymorphism. Materials and Methods: A total of 195 Thin Prep Pap smear samples from HPV negative and cancer free females were randomly selected as controls while 106 formalin fixed paraffin embedded samples from females with invasive cervical cancer were randomly selected for the cases group. The polymorphisms were identified using restriction fragment length polymorphism (RFLP) PCR. Results: We found no significant associations between CYP1A1 MspI polymorphism and cervical cancer in the general Malaysian female population. However, upon ethnic stratification, the variant C/C genotype was significantly associated with a 4.66-fold increase in cervical cancer risk in Malay females (95% CI= 1.21-17.9; p=0.03). No significant association was observed in the Chinese and Indian females. Additionally, there were no significant associations in the dominant model and allele frequency model analysis in both the general and ethnically stratified female population of Malaysia. Conclusions: Our findings suggest that the C/C genotype of CYP1A1 MspI polymorphism is associated with the development of cervical carcinoma in the Malay females of Malaysia.

Quality of Life among Breast Cancer Patients In Malaysia

  • Ganesh, Sri;Lye, Munn-Sann;Lau, Fen Nee
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.4
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    • pp.1677-1684
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    • 2016
  • Background: Among the factors reported to determine the quality of life of breast cancer patients are socio-demographic background, clinical stage, type of treatment received, and the duration since diagnosis. Objective: The objective of this study was to determine the quality of life (QOL) scores among breast cancer patients at a Malaysian public hospital. Materials and Methods: This cross-sectional study of breast cancer patients was conducted between March to June 2013. QOL scores were determined using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30) and its breast cancer supplementary measure (QLQ-BR23). Both the QLQ-C30 and QLQ-BR23 assess items from functional and symptom scales. The QLQ-C30 in addition also measures the Global Health Status (GHS). Systematic random sampling was used to recruit patients. Results: 223 breast cancer patients were recruited with a response rate of 92.1%. The mean age of the patients was 52.4 years (95% CI = 51.0, 53.7, SD=10.3). Majority of respondents are Malays (60.5%), followed by Chinese (19.3%), Indians (18.4%), and others (1.8%). More than 50% of respondents are at stage III and stage IV of malignancy. The mean Global Health Status was 65.7 (SD = 21.4). From the QLQ-C30, the mean score in the functioning scale was highest for 'cognitive functioning' (84.1, SD=18.0), while the mean score in the symptom scale was highest for 'financial difficulties' (40.1, SD=31.6). From the QLQ-BR23, the mean score for functioning scale was highest for 'body image' (80.0, SD=24.6) while the mean score in the symptom scale was highest for 'upset by hair loss' (36.2, SD=29.4). Two significant predictors for Global Health Status were age and employment. The predictors explained 10.6% of the variation of global health status ($R^2=0.106$). Conclusions: Age and employment were found to be significant predictors for Global Health Status (GHS). The Quality of Life among breast cancer patients reflected by the GHS improves as age and employment increases.

Distribution and Haplotype Associations of XPD Lys751Gln, XRCC1 Arg280His and XRCC1 Arg399Gln Polymorphisms with Nasopharyngeal Carcinoma in the Malaysian Population

  • Visuvanathan, Shaneeta;Chong, Pei-Pei;Yap, Yoke-Yeow;Lim, Chin-Chye;Tan, Meng-Kuan;Lye, Munn-Sann
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.6
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    • pp.2747-2751
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    • 2014
  • Background: DNA repair pathways play a crucial role in maintaining the human genome. Previous studies associated DNA repair gene polymorphisms (XPD Lys751Gln, XRCC1 Arg280His and XRCC1 Arg399Gln) with nasopharyngeal carcinoma. These non-synonymous polymorphisms may alter DNA repair capacity and thus increase or decrease susceptibility. The present study aimed to determine the genotype distribution of XPD codon 751, XRCC1 codon 280 and codon 399 polymorphisms and haplotype associations among NPC cases and controls in the Malaysian population. Materials and Methods: We selected 157 NPC cases and 136 controls from two hospitals in Kuala Lumpur, Malaysia for this study. The polymorphisms studied were genotyped by PCR-RFLP assay and allele and genotype frequenci es, haplotype and linkage disequilibrium were determined using SNPstat software. Results: For the XPD Lys751Gln polymorphism, the frequency of the Lys allele was higher in cases than in controls (94.5% versus 85.0%). For the XRCC1 Arg280His polymorphism, the frequency of Arg allele was 90.0% and 89.0% in cases and controls, respectively and for XRCC1 Arg399Gln the frequency of the Arg allele was 72.0% and 72.8% in cases and controls respectively. All three polymorphisms were in linkage disequilibrium. The odds ratio from haplotype analysis for these three polymorphisms and their association with NPC was 1.93 (95%CI: 0.90-4.16) for haplotype CGC vs AGC allele combinations. The global haplotypte association with NPC gave a p-value of 0.054. Conclusions: Our study provides an estimate of allele and genotype frequencies of XRCC1Arg280His, XRCC1 Arg399Gln and XPD Lys751Gln polymorphisms in the Malaysian population and showed no association with nasopharyngeal cancer.

The Effects of Negative- and Positive- Charged Surfactants on In vitro DM Digestibility and the Growth of Ruminal Mixed Microorganisms (양(+) 이온성 및 음(-) 이온성 계면활성제 첨가가 반추위 혼합 미생물에 의한 In vitro 건물소화율 및 미생물 성장에 미치는 영향)

  • Lee, S.J.;Shin, N.H.;Kim, W.Y.;Moon, Y.H.;Kim, H.S.;Ha, J.K.;Lee, S.S.
    • Journal of Animal Science and Technology
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    • v.49 no.5
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    • pp.647-656
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    • 2007
  • In order to investigate the effects of supplemental ionic surfactants in in vitro ruminal fermentation, N-Lauroylsarcosine sodium salt(N-LSS) and sodium dodecyl sulfate(SDS) for negative(-) ionic surfactant, and hexadecylpyridinium chloride monohydrate(HPCM) and hexadecyltrimethyl ammonium bromide(HTAB) for positive (+) ionic surfactant were supplemented by 0.05% and 0.1% into the Dehority’s artificial medium containing rice straw(1mm) as a substrate. In vitro DM digestibility, the growth of rumen mixed microbes, pH, cumulative gas production and SEM(Scanning Electron Microscopy) observation of microbial attachment on rice straw particle were investigated through the experiment composing 9 treatments (two supplemental levels of two positive ionic(+) surfactant, two supplemental levels of two negative(-) ionic surfactant) including the control. The sample collection was at 6, 12, 24, 48 and 72 h post fermentation with 3 replications per treatments. DM digestibility in treatments supplemented (+) or (-) surfactants almost stopped afterward 12 h fermentation, in vitro DM digestibility at 72 h post fermentation in the ionic surfactants was at half level of that of the control(P<0.05). Accumulative gas production in in vitro was less(P<0.05) with addition of ionic surfactants compared to the control. The amount of rumen mixed microbes recovered from in vitro incubation fluid pleateaued at 12 h post fermentation for the positive (+) ionic surfactants, but steadily increased as fermentation time elapsed for the control. Rumen microbial growth rate was significantly(P<0.05) low in the negative(-) ionic surfactant compared to the control. pH of the incubation fluid was ranged from 6.02 to 7.20, and was the highest in the negative(-) ionic surfactants, and was the lowest in the control(P<0.05). In SEM observation, rumen microbial population attached on rice straw particle was less with addition of ionic surfactants than the control. In conclusion we could not found any positive effects of negative- and positive- charged surfactants on rumunal fermentation characteristics and rumen microbial growth rates.