Liquid metal extraction (LME), a pyrometallurgical recycling method, is popular owing to its negligible environmental impact. LME mainly targets rare-earth permanent magnets having several rare-earth elements. Mg is used as a solvent metal for LME because of its selective and eminent reactivity with rare-earth elements in magnets. Several studies concerning the formation of Dy-Fe intermetallic compounds and their effects on LME using Mg exist. However, methods for reducing these compounds are unavailable. Fe reacts more strongly with B than with Dy; B addition can be a reducing method for Dy-Fe intermetallic compounds owing to the formation of Fe2B, which takes Fe from Dy-Fe intermetallic compounds. The FeB alloy is an adequate additive for the decomposition of Fe2B. To accomplish the former process, Mg must convey B to a permanent magnet during the decomposition of the FeB alloy. Here, the effect of Mg on the transfer of B from FeB to permanent magnet is observed through microstructural and phase analyses. Through microstructural and phase analysis, it is confirmed that FeB is converted to Fe2B upon B transfer, owing to Mg. Finally, the transfer effect of Mg is confirmed, and the possibility of reducing Dy-Fe intermetallic compounds during LME is suggested.

This study examines new value proposition presented in promoting environment-friendly residential facility. Relationship among changes in social background, consumers’ intention/ value and solar PV systems introduction is evaluated over the last decade since before the Great East Japan Earthquake.

This study was conducted to understand the dietary life of North Koreans by analyzing dietary life-related articles published in Joseon Nyeoseong, which is the only women’s magazine in North Korea. This study employed content analysis of 769 articles from 1999 to 2017. The major findings of this study were as follows. Out of the 769 articles, 131 (17.0%) were about dietary culture, 541 (70.4%) were about the food and nutrition, and 97 (12.6%) were about food production. The articles emphasized ethnic food and North Koreans ingredients, spices, cooking methods, containers, and etiquette. A variety of foods and ingredients were used to maintain health, as well as to treat common illnesses and health problems. There were 173 recipes mentioned in the magazine, but no foreign food recipes. There were many dishes that could be preserved for a long time such as Kimchi and pickles. For food security, many vegetables and plant-eating animals such as rabbits were cultivated. Overall, the results indicate that North Korea has been maintaining its unique dietary life without being influenced by foreign countries.

수노랑나비(Chitoria ulupi (Doherty, 1889))는 한반도 전역에 국지적으로 분포하는 종으로, 국외의 경우 인도, 미얀마, 라오스, 중국, 대만 등에 서식하는 것으로 알려져 있다. 이 종에 대한 생활사는 김과 서(2012)에 의해 확인된 유생기와 번데기의 형태 등이 일부 보고 된 것 이외에는 알려진 바가 없다. 본 연구에서는 한국산 수노랑나비의 생태적 습성(성충 산란행동, 점유행동, 짝짓기, 먹이습성 등)과 미성숙단계 (알, 유충, 번데기)의 형태적 특징 등 생활사 전반에 대하여 보고 하고자 한다.

흑백알락나비 (Hestina persimilis (Westwood, 1850))는 한반도의 평안남도 이남의 내륙지역에 넓게 분포하고, 국외의 경우 일본, 중국, 히말라야 일대에 서식하는 것으로 알려져 있다. 본 종에 대한 생활사 연구는 김과 서(2011)에 의해 월동유충, 종령, 번데기 등에 대한 일부 보고가 있을 뿐 자세한 생활사에 대한 기록은 전무하다. 본 연구를 통해 한국산 흑백알락나비의 생태적 습성 및 미성숙단계 (알, 유충, 번데기)의 형태적 특징 등 자세한 생활사 정보를 보고하고자 한다.

본 논문은 학교폭력의 대안으로 회복적 정의를 제시하고, 좋은교 사운동이 전개하는 회복적 생활교육을 소개하여 평화로운 학교만들기를 위한 교회의 선교과제를 제시하고자 한다. 회복적 정의는 가해자와 피해자의 만남, 양자의 회복, 공동체(사회)와 개인의 변혁을 강조하는 열린 개념이다. 회복적 정의를 학교현장에 적용한 모델이 브렌다 모리슨의 3단계 회복적 실천 모델이다. 좋은교사운동이 전개하는 회복적 생활교육은 회복적 정의와 모리슨의 삼 단계 모델을 한국학교에 적용한 것으로 회복적 정의의 만남, 회복, 변혁을 실천하고 지향하고 있다. 이 운동에 참여한 교사들을 인터뷰한 결과 회복적 생활교육의 특징은 회복적 가치들을 지키며, 이 운동에 반대 또는 협조하지 않는 교사들을 경청하고 이해하고, 기다리며, 참여 동기가 교육현장의 문제에 대한 절박한 고민과 십자가 신앙 때문임을 알 수 있다. 평화로운 학교만들기를 위한 교회의 선교적 과제로는 회복적 정의와 회복적 생활교육을 목회자, 교사, 학부모에게 가르쳐 학교에 적용하여 이 운동이 확산되게 하는 것, 회복적 정의에 대한 성서교재 개발, 서클 기도회, 예배 개발하 기, 신학교에서 회복적 정의를 가르쳐 교회학교에 적용하기 등이다.

Consumers now-a-days are more inclined to buy green products (Mosgaard, 2015; Kammer, 2009). They are concerned about the negative environmental impact of the existing pattern of production and consumption systems on their quality of life (QoL) (Alfredsson, 2004). Consequently, large body of literature on factors influencing green consumption and/or purchase behaviour, among which ‘greenness’ of the product (Gershoffs & Frels, 2015), value of the green product (Olsen et al., 2014), attitude of the consumers towards environmental protection and available knowledge, and perceived time barriers (Tanner & Kast, 2003) are noteworthy among others. Although there is an abundance of research on green consumption, little is known about the habitual purchase of green products and how it contributes to the quality of life of the consumers. Habitual purchase refers to regular and automatic purchase of a product without any cognitive thought or evaluation (Verplanken & Melkevik, 2008). Thus it is distinct from conventionally used constructs such as purchase intention. This study addresses this research gap and aims to explore the effects of different types of green values (such as ecological, functional, economical, emotional and social value) and green satisfaction on the habitual purchase of green products and thus examine their effects on quality of life (QoL) of the consumers.

This study was conducted to evaluate the biopreservative potential of a bacteriocin-containing cell-free culture from Lactococcus lactis A164 on tofu. In order to increase the shelf-life of tofu, cell-free culture of A164 was added to tofu coagulant agent for coagulation process. Compared with tofu treated with distilled water, lactic acid, or cell-free culture from Lactobacillus plantarum P23, the tofu treated with a bacteriocin-containing cell-free culture from A164 could significantly suppress the number of total bacteria and extend the shelf-life of tofu. The antibacterial activity of tofu treated with cell-free culture from A164 was further evaluated by using modified agar diffusion method with Weissella paramesenteroides ATCC33313, as an indicator strain. The cell growth of the indicator strain was significantly inhibited by tofu treated with cell-free culture from A164. These results indicate that a bacteriocin-producing strain, L. lactis A164, can be used as a biopresevative for extending the shelf life of fresh-processing foods such as a tofu.

Tetranychus piercei McGregor, T. truncatus Ehara, and T. bambusae Wang and Ma are considered as major pests of many agricultural crops in Bangladesh. T. piercei and T. truncatus has a diverse host plants although T. bambusae infest only bamboo leaves. We compared the development, survivorship, and life table parameters of T. piercei and T. truncatus on bean leaves and T. bambusae on bamboo leaves at 25ºC, 60-70% RH, and a photoperiod of 16: 8 h (light: dark). The development time from egg to adult female of T. piercei and T. truncatus was 10.2 and 8.8 days when feeding on bean leaves, respectively, whereas it takes 9.5 days for female T. bambusae when feeding on Bambusa sp. leaves. Mated females of T. piercei, T. truncatus, and T. bambusae laid on average 186.9, 132.5, and 46.3 eggs for the oviposition period of 22.3, 13.5, and 20.2 days, respectively. The intrinsic rate of increase (rm) was 0.268 for T. piercei, 0.295 for T. truncatus, and 0.178 for T. bambusae. The finite rate of increase (λ) was 1.31, 1.34, and 1.20 individuals/female/day for T. piercei, T. truncatus, and T. bambusae, respectively. The doubling time (Dt) was lowest in T. truncatus (2.4 days) compare to T. piercei (2.6 days) and T. bambusae (3.9 days). The two polyphagous Tetranychus mites collected in Bangladesh are found to have similar life table parameters fall within the parametric range of other Tetranychus mites found in various regions irrespective of food sources. This is the first report of life table parameters of monophagous T. bambusae.

The study aims at implementing a literature-based approach in an EFL course for university students. The students in this study read the text outside of the class and met regularly to do reading related activities throughout the semester. Data collection consisted of audio-recordings of classroom conversations and interviews,both the students’ and the instructor’s journals, and pre- and post-class surveys. Research questions were set up to explore the dynamic aspects of foreign language learning. Data analysis revealed the following results: The first finding was that students could refine their language skills based on communicative language use by improving English production skills while as learning how to use text structures in developing language skills. The second finding was that students changed their perceptions of language learning. Students started to take ownership toward their learning and thus they could grow as language learners by showing their voluntary work in learning the new language. The third finding was that students in this study could extend experiences through dynamic reading transaction by identifying themselves with the characters from the texts and nurturing reflective responses. Based on the results, the implications of the findings and suggestions for follow-up studies were provided.

Jukseoru as an official pavilion of the government, one of the eight sceneries in Gwndong Area, is located on the cliff over Osipcheon River. This paper interprets form and space of the pavilion with restored old life by analyzing pictures of official party in 18th century in Chosun Dynasty. Every part of the space is occupied by persons by the class and duty: the pricipal guest, nobles, subordinates, gisaengs, court musicians, and guards from the high to the low and from the inside to the outside. Applying the analysis to the Jukseoru pavilion, the noblest lord takes sit on the platform in front of folded screen at main bay under checked ceiling, enclosed by low timber beam. The next northern end bay is a place for subordinates' and servants' waiting for preparation for rice wine. Southern end entrance bay is not a result of later addition but deliberately and originally made for lower place outside the railing of wooden floor: for a waiting woman gisaeng, and subordinates. Outside under the eaves on the platform with bedrock, artificial stone and soil is a place for court musicians, subordinates, and guards. The yard in front of the building is a place for preparing meals by cookers. Every detailed ornamental form is different each other by the place for the occupied class. Existing theory tells that the building, 7 bays gable-and-hipped roof, is a result of structural extention of 2 bays at the 5 bays gabled-roof. However, through the interpretation of old pictures and application to the pavilion, the present Juseoru is not a result of later structural addition, but deliberately designed creation suited to life in hierarchical traditional society.

The Wolbachia bacterium belongs to α-proteobacteria and is one of the most prevalent intracellular endosymbionts of arthropods and nematodes. One theoretical study suggests that the bacterium may infect up to 66% of insect species. Its fundamental biology and potential applications have been paid much attention with its ability to induce 4 distinct reproductive anomalies and other modifications of its various hosts. The four reproductive anomalies include, i) cytoplasmic incompatibility, where embryonic death results from the cross between an uninfected female and an infected male, ii) feminization, where an infected egg with male genetic background develops into an infected functional female, iii) male killing, where infected eggs with male genetic background dies in their early developmental stage, iv) parthenogenesis, exclusively where, in organisms with haplodiploid sex determination, an infected unfertilized egg develops into an infected female. All these reproductive anomalies, except cytoplasmic incompatibility, cause female biased sex ratio because females can descend cytoplasm to the next generation where the bacterium can reside. Furthermore, these have nothing to do with hosts’ evolutionary interests but only with the bacterial evolutionary interests (i.e. its prosperity). In this sense, the bacterium is one of the pronounced examples of selfish genetic elements. Recent researches also focus on some novel phenomena other than these reproductive anomalies mentioned above. We will review recent advances in general biology of the bacterium, its impacts on host life history, the reproductive anomalies and cellular mechanisms underlying them and potential utilization of the bacterium for better agricultural and medical environments.

강원도 치악산 계류에서 하루살이과에 속하는 가는무늬하루살이와 무늬하루살이의 온도와 연관된 생활사 적응에 대하여 연구하였다. 하루살이 개체군의 고도분포에 따라 3개의 조사지점(상류와 중류지점: 가는무늬하루살이; 하류지점: 무늬하루살이)을 선정하였다. 채집은 1997. 2~1998. 1 동안 월 1회 실시하였고, 우화기에는 월 2회 실시하였다. 수온은 1997. 5~1998. 1 동안 시간대로 모니터링 하였다. 결과로서, 3개의 조사지점은 서로 다른 온도역(평균온도 상류: 9.39°C; 중류: 10.38°C; 하류: 12.70°C)을 나타냈다. 체장과 유충단계의 분석 결과 두 종 모두 명백히 연 1세대였고, 각 개체군은 2개의 무리(cohort)를 포함하였다. 우화는 늦은 5월부터 늦은 6월까지 일어났지만 하류로 갈수록 일렀다. 유충의 충원은 우화기(여름형)와 그 5~6개월 이후(겨울형)에 시작되었다. 이처럼 2회에 걸친 유충의 충원에 대하여 알의 휴면 또는 무성생식이 원인으로 작용하는 것으로 가정되었다. 상류와 중류에서 가는무늬하루살이의 총 적산온도는 각각 2380DD와 2668DD였고, 하류에서 무늬하루살이는 3220DD였다. 가는무늬하루살이의 경우 연평균수온이 1°C 내려감에 따라 알의 부화는 약 22일, 평균 유충성장은 약 15일 지연되는 것으로 추정되었다. 가는무늬하루살이는 냉온에 적응된 생활사 양상을 나타냈고, 다른 한국산 및 일본산 근연종과 비교하여 종내 및 종간 생활사 적응에 대하여 추가로 논하였다.

The contents of articles on nutrition in life cycle, health and disease in the Korean daily newspapers were analyzed for the evaluation of the trends in nutrition information in mass media. Among 922 articles pressed from January 1960 to June 1996, articles on nutrition in life cycle were most frequently appeared, which is followed by articles on nutrition in disease, health foods and other related food and nutrition informations. There was a deep contrast in that the proportion of articles on nutrition in life clyle decreased from 58% in the 60's to 33% in the 90's, and those of nutrition in disease, and health foods increased from 23% and 5% in 60's to 34% and 18% in 90's, respectively.

『네 사중주』창작의 기본 바탕은 “번트 노턴”에서 “리틀 기딩”에 이르 기까지 엘리엇이 직접 방문한 체험 혹은 경험에 있다. 그러나 단순히 사실을 기록하는 차원을 넘어서서 엘리엇은 자신이 경험한 영적 체험을 정서와 감정을 배제한 채 정확하게 표현하려고 시도했다. 물론 그 과정이 결코 순탄한 것만은 아니었음을 『네 사중주』를 통해서 알 수 있다. 엘리엇의 체험은 물론 기독교 시인으로서 그가 하나님과 만난 순간을 의미하는 것이며 또한 『네 사중주』만을 위한 체험이라기보다는 이미 이른 시기에도 이와 유사한 체험이 있었음을 알 수 있다. 또한 그 체험은 명상이나 요가에 의해 출현된 것이 아닌 일상생활을 통해서도 가능하며 매우 짧을지라도 이 순간은 시간과 공간에서 벗어나게 된다.