Potential Uses of Exotic Germplasm for Enhancing Yield and Biotic Resistance of Corn in Myanmar

Win Win Nwe,John Ba Maw,Thant Lwin Oo,May Thet Naing,Hlaing Hlaing Khin,Khin Thandar Min,Thandar Win,Soon-Kwon Kim 한국작물학회 2010 한국작물학회 학술발표대회 논문집 Vol.2010 No.04

Corn (Zea mays.L) is the second leading cereal in Myanmar and an important commodity in earning farmers’ income and foreign currencies. To increase productivity, development of locally adapted better hybrid is strongly needed. For upgrading the hybrid corn research and development program, Department of Agricultural Research (DAR) invited the International Corn Foundation (ICF)/Kyungpook National University (KNU) in 2005. Under this collaborative program, research on genetic potential of exotic germplasm introduced from Nepal, Hawaii, Korea, China and IITA has been carried out in 2009 rainy season. Yield trials of 108 and 80 combinations of Myanmar lines and exotic germplasm (Normal × Normal crosses, Normal × Super-sweet) were carried out in Tatkone, Yezin (central zone), Nyaung Mon (north zone), Aung Ban (highland zone) research stations, respectively. These experimental crosses are produced in Korea and Cambodia, 2008. Two to five outstanding hybrids have been selected for three respective zones. Selected hybrids yielded 50-100% more than the best commercial hybrid, CP888 imported from Thailand.The hybrids are tolerant to Rhizoctonia blight in the Tatkone, Exserohilum turcicum blight in Aung Ban, and E. turcicum and stem borers in the Nyaung Mon. A couple of normal super-sweet corn hybrids were selected for nutrition, sugar and vitamin A+. These results point out that introgression of exotic alleles has a potential to increase the heterotic response in yield and biotic resistance. Thus, an understanding of the heterotic relationship between adapted and exotic is needed to exploit exotic germplasm intelligently.

리튬-이온 배터리에 적용된 접착력과 안정성이 향상된 탄소나노월에 관한 연구

김철수(Chulsoo Kim),이석원(Seokwon Lee),Tran Thi May,김강민(Kangmin Kim),안채현(Chaehyun Ahn),심영진(Youngjin Shim),신규리(Kyuri Shin),김정현(Junghyun Kim),김형진(Hyungjin Kim),최원석(Wonseok Choi) 대한전기학회 2022 대한전기학회 학술대회 논문집 Vol.2022 No.7

Why Women Volunteer in Korea

May Kim 숙명여자대학교 아시아여성연구원 2013 Asian Women Vol.29 No.1

The purpose of the study is to explore gender differences in volunteering based on the relationships of identification and volunteer satisfaction. Specifically, this study investigated how the relative contribution of three different foci of identification (sport, community, and volunteering) and volunteer satisfaction in the pregames of the Special Olympics World Winter Games related to four different types of volunteering intentions, and how these intentions differ between male and female volunteers. Identification with volunteering was a significant predictor of volunteer intentions regardless of gender and volunteer opportunities. Volunteer satisfaction was a critical factor only for female volunteers in predicting future volunteering intentions similar to the current volunteer experiences.

Detailed Analysis of Patients with Metastasis to the Prostatic Anterior Fat Pad Lymph Nodes: A Multi-Institutional Study

Kim, I.Y.,Modi, P.K.,Sadimin, E.,Ha, Y.S.,Kim, J.H.,Skarecky, D.,Cha, D.Y.,Wambi, C.O.,Ou, Y.C.,Yuh, B.,Park, S.,Llukani, E.,Albala, D.M.,Wilson, T.,Ahlering, T.,Badani, K.,Ahn, H.,Lee, D.I.,May, M.,K Williams and Wilkins Co 2013 The Journal of urology Vol.190 No.2

Purpose: Lymph nodes in the prostatic anterior fat pad rarely harbor metastatic disease. Therefore, the characteristics of patients with prostatic anterior fat pad lymph node metastasis are not well described in the literature. We identified the perioperative characteristics and assessed the clinical outcomes of patients with prostatic anterior fat pad lymph node metastasis. Materials and Methods: At 8 tertiary care centers a total of 4,261 patients underwent complete removal and pathological analysis of the prostatic anterior fat pad. We describe preoperative and pathological characteristics, and clinical management and outcomes in patients with metastatic disease to the prostatic anterior fat pad. Results: Metastatic disease to the prostatic anterior fat pad lymph nodes was detected in 40 patients (0.94%), of whom 37 (92.5%) had intermediate or high risk features preoperatively. Most patients with prostatic anterior fat pad metastases underwent concomitant pelvic lymph node dissection, and adjuvant therapy with radiation, androgen ablation and/or chemotherapy. A total of 27 patients (67.5%) with prostatic anterior fat pad metastatic disease were up-staged as a result of prostatic anterior fat pad pathological analysis, of whom 14 (51.8%) remained free of biochemical recurrence with observation and/or definitive adjuvant/salvage therapy. Conclusions: Most patients with prostatic anterior fat pad metastatic disease had intermediate to high risk features preoperatively. In some patients with such lymph node metastasis removing these lymph nodes resulted in prolonged biochemical recurrence-free survival. Therefore, we recommend that the prostatic anterior fat pad be removed in all patients undergoing radical prostatectomy. However, pathological analysis of the prostatic anterior fat pad may be limited to patients with intermediate to high risk oncological features preoperatively.

다중객체추적 알고리즘을 활용한 드론 항공영상 기반 미시적 교통데이터 추출

정보경,서성혁,박부기,배상훈,Jung, Bokyung,Seo, Sunghyuk,Park, Boogi,Bae, Sanghoon 한국ITS학회 2021 한국ITS학회논문지 Vol.20 No.5

4차 산업혁명의 도래와 함께 자율주행자동차의 주행관리 및 주행 전략과 관련된 연구들이 대두되고 있다. 이러한 연구를 위해서는 차량의 미시적 교통데이터의 확보가 필수적이나, 기존 교통정보 수집 방식은 개별차량의 주행행태를 수집할 수 없다. 본 연구에서는 미시적 교통정보를 수집 가능한 항공에서 내려다보는 관점의 교통정보 수집을 위해 드론 항공영상을 활용하였다. 관련 연구의 한계점을 극복하기 위하여 딥러닝 기반 다중객체추적 알고리즘과 영상정합을 활용하여 미시적 교통데이터를 추출하였다. 그 결과로 속도는 MAE 3.49km/h, RMSE 4.43km/h, MAPE 5.18km/h의 오차율과 교통량 Precision 98.07%, Recall 97.86%의 정확도를 획득하였다. With the advent of the fourth industrial revolution, studies on driving management and driving strategies of autonomous vehicles are emerging. While obtaining microscopic traffic data on vehicles is essential for such research, we also see that conventional traffic data collection methods cannot collect the driving behavior of individual vehicles. In this study, UAV videos were used to collect traffic data from the viewpoint of the aerial base that is microscopic. To overcome the limitations of the related research in the literature, the micro-traffic data were estimated using the multiple object tracking of deep learning and an image registration technique. As a result, the speed obtained error rates of MAE 3.49 km/h, RMSE 4.43 km/h, and MAPE 5.18 km/h, and the traffic obtained a precision of 98.07% and a recall of 97.86%.

Characterization of Hydrangea Accessions Based on Morphological and Molecular Markers

May Thinn Khaing,Hyo Jin Jung,Jong Bo Kim,Tae-Ho Han 한국원예학회 2018 원예과학기술지 Vol.36 No.4

Hydrangea (Hydrangea spp.) is commonly cultivated as an ornamental plant for its attractive characteristics. While numerous hydrangea cultivars are available as genetic resources, they cannot be utilized effectively for breeding purposes because of a lack of information on their genetic relationship and breeding compatibility. In this study, genetic relationships within a collection of 34 accessions consisting of 4 species of hydrangea (H. macrophylla, H. paniculata, H. serrata, and H. arborescens) were evaluated using random amplified polymorphic DNA (RAPD) markers. The hydrangea cultivars were maintained in the greenhouse at Chonnam National University. The dendogram of the genetic relationship was subjected to a clustering analysis in the PAST program using the unweighted pair group method with arithmetic mean (UPGMA) method to estimate the genetic distances and relatedness among the species. Based on RAPD analysis, H. macrophylla was separated into two major groups with high levels of genetic similarity among the cultivars. H. paniculata accessions were classified into one major group with ‘Womseuredeu’ genetically distant from the other cultivars. H. serrata and H. arborescens were divided into two separated groups. The dendrogram suggests that H. macrophylla and H. serrata are genetically similar therefore the chance of hybridization between this species may be greater than that between more distantly related species. The present study provides useful information for the breeding of hydrangea cultivars.

여가활동으로서의 자원봉사

김매이(May Kim) 한국여가레크리에이션학회 2010 한국여가레크리에이션학회지 Vol.34 No.3

The purpose of the current study are twofold: (1) to consider event volunteers as leisure pursuers and understand their various identification factors and (2) to investigate the influence of 5 identification factors (identification with team, identification with level, identification with sport, identification with community, and volunteer identification). The study was conducted with 275 selected volunteers of Daegue World Championship in Athletics. The identification level of these volunteers were not high. Also, there was no gender difference in five identification factors except identification with community. The regression analysis showed that all 5 identification factors explained 19% of variance in volunteer intention for other related events. Specifically, only identification with community and identification with team were significant predictors of volunteer intention.

스포츠분야의 자원봉사연구

김매이 ( May Kim ) 한국스포츠정책과학원(구 한국스포츠개발원) 2017 체육과학연구 Vol.28 No.2

[목적] 본 연구의 목적은 국내 스포츠 자원봉사 관련 연구에 대한 전반적인 현황을 알아보는 것이다. [방법] KCI 등재 논문 중 스포츠 자원봉사를 그 주제로 한 60편의 논문과 스포츠 자원봉사가 주제는 아니나, 변인이나 제언의 한 방향으로 언급하고 있는 논문 14편(총 74편)을 연도별, 학술지별, 학문분야별, 연구방법별, 연구주제별, 연구대상별, 참여 자원봉사자별, 참여 자원봉사분야별로 분류하였다. [결과] 스포츠 자원봉사 관련 연구는 꾸준히 출판되고 있고 2009년부터 그 수가 증가되어가고 있다. 다양한 연구 분야의 학술지에서 출판되고 있으며, 특히 스포츠경영학, 교육학, 특수체육, 스포츠정책분야에서 많은 연구가 이루어지고 있었다. 연구방법적인 측면에서는 양적방법론을 사용한 연구가 절반 가까이를 차지하지만, 질적방법론을 사용한 연구도 적지 않았다. 자원봉사자를 대상으로 한 연구가 대부분이며 자원봉사수혜자를 대상으로 한 연구는 거의 없었다. 참여 자원봉사자는 많은 수가 대학생이었으며, 이벤트봉사나 교육봉사 등에 참여하는 봉사자들을 대상으로 하는 연구가 가장 많았다. [결론] 국내의 스포츠 자원봉사 연구는 다양한 주제를 가진 연구들을 기본으로 한 양적 확장도 이루어져야하겠지만 국내 현황과 스포츠 자원봉사자들에 대한 제대로 된 이해와 확실한 이론적 근거를 바탕으로 한 연구의 질적 성장도 필요하다. [Purpose] The purpose of the study is to review the current trends of Korean research on sport volunteering. [Methods] For the research purpose, 74 KCI-listed articles published were investigated. [Results] The main topics of 60 articles were sport volunteering and the sub-topic or factor of the other 14 articles was sport volunteering. These articles were classified based on the publishing year, type of journal, academic area, research method, research topic, research sample, volunteer characteristics and volunteer area. Research on sport volunteering has been continuously conducted but the number of related publications has been increased since 2009. Sport volunteer research articles have been published in various sport related journals. However, the majority of the research articles are in the research areas of sport management, sport pedagogy, adopted physical education, and sport policy. Regarding the research method, more than a half of the articles were the ones using quantitative research methods, but qualitative research methods were often used as well. The majority of the research were conducted on volunteers but the research conducted on the beneficiaries of volunteer services were few. Many of the volunteers researched were college students. Event volunteering and educational volunteering were common volunteering areas in the research articles. [Conclusions] Korean researchers should not only conduct more research on sport volunteering with various topics but also improve the quality of the research after conducting the in-depth review of theories and literature and the better understanding about Korean situation on sport volunteering.

The Influence of Identification on Pre-volunteers’ Behavior Intentionin a Mega Sporting Event

김매이(May Kim) 한국사회체육학회 2012 한국사회체육학회지 Vol.0 No.47

수많은 사람들이 스포츠행사에서 자원봉사를 하지만, 그 자원봉사 관리에 있어서는 미흡한 면이 많다. 대체적으로 대회운영위원위는 자원봉사자들이 선발한 후, 자원봉사교육 등에 힘을 쓰기 보다는 개개인의 자원봉사자들이 스스로 자원봉사 업무나 대회 전반에 관해 준비하고 있기를 기대하고 있는 게 현실이다. 이런 이유로 본 연구에서는 자원봉사자들의 동일시(스포츠동일시, 지역동일시)정도, 자원봉사자부심과 심리적 계약(긍정적 기대), 자원봉사자들의 대회 준비의도를 포함한 연구 모형을 제시하고, 관련 가설 들을 검증하였다. 본 연구는 대구육상대회자원봉사자로 선출된 275명을 대상으로 실시되었고, 구조방정식을 통해 모델 및 가설이 검증되었다. 본 연구 결과에 따르면, 스포츠동일시(H1)와 지역동일시(H2) 수준은 자원봉사자부심에 긍정적 영향을 주었으며, 지역동일시는 긍정적 기대에도 긍정적 영향을 주었다(H3). 또한, 자원봉사자부심(H4)과 긍정적 기대(H5)는 자원봉사 활동에 대한 준비의도에 긍정적 역할을 하는 것으로 나타났다.

우리나라 국민들의 여가인식과 행복의 관계에서 여가정책만족도의 매개효과

김보람(Kim, Bo-Ram),이유진(Lee, Yujin),김매이(Kim, May) 한국여가레크리에이션학회 2022 한국여가레크리에이션학회지 Vol.46 No.2

This study investigated the mediating effect of leisure policy satisfaction in the relationship between leisure consciousness and happiness with the purpose of providing basic data for establishing a systematic and evaluating leisure policies for the happy life of the people. In addition, specific leisure policy satisfaction factors affecting happiness were identified. To this end, a sample of 9,469 adults in their 20s or older was used for the final analysis based on the data from the 2020 Survey on National Leisure Activity. Using SPSS 27.0, frequency analyses, descriptive statistical analysis, correlation analysis, Process Macro 3.4 ver, Model 4 and multiple regression analyses were conducted. The conclusions drawn through these research procedures and methods are as follows. First, it was found that leisure policy satisfaction had a mediating effect in the relationship between leisure consciousness and happiness. Next, among leisure policy satisfaction factors, diversity of leisure facilities, legal guarantee of holidays and vacations, and program development and dissemination were found to have a positive effect on happiness in the order of satisfaction. On the other hand, club foster and support showed a negative effect on happiness. Therefore, starting with a positive perception of leisure, effective leisure policies that reflect the satisfaction and desires of the people should be continuously and actively devised and implemented. Through this, I hope that all of our people will be able to get closer to a more prosperous and happy life.