This study investigated the initial mass function (IMF) and star formation history of high-mass stars in the Small Magellanic Cloud (SMC) using a population synthesis technique. We used the photometric survey catalog of Lee (2013) as the observable quantities and compare them with those of synthetic populations based on Bayesian inference. For the IMF slope (γ) range of -1.1 to -3.5 with steps of 0.1, five types of star formation models were tested: 1) continuous; 2) single burst at 10 Myr; 3) single burst at 60 Myr; 4) double bursts at those epochs; and 5) a complex hybrid model. In this study, a total of 125 models were tested. Based on the model calculations, it was found that the continuous model could simulate the high-mass stars of the SMC and that its IMF slope was -1.6 which is slightly steeper than Salpeter's IMF, i.e., γ=-1.35.

In this study, fossil liverwort (Hepaticae) of Thallites yabei (Kryshtofovich) Harris is described based on the newly obtained material from the Lower Cretaceous Nakdong Formation of Sindong Group, Korea. The thalli of T. yabei is ribbon-like, bifurcating at least three or four times, and has a distinct midrib. Although the thalloid plants are herbaceous with little hard part, the thalli of T. yabei is relatively well preserved to show the sequentially bifurcating pattern in the specimens occurred in the same fossil locality. Such characteristics indicate that they were probably buried in situ. The abundant occurrence of thalli plants also indicate that land was covered densely by them as one of the terrestrial land plant members, and flourished under the tall arbor trees in the humid environment during the Early Cretaceous in the Gyeongsang Basin.

이 연구는 경표피흡수를 위하여 큐빅액정의 자기조직체의 형성에 관한 것이다. 복수 수산기 (-OH)를 가지는 친수부에 4개의 메칠 그룹을 가지는 양친매성지질인 diglyceryl phytylacetate (DGPA) 를 합성하여 다양한 성능평가를 수행하였다. DGPA의 유화력은 1%의 적은 농도에서도 고 내상의 물을 함유하는 안정한 W/O water-in-oil)에멀젼이 유지되었다. DGPA, dimethicone (2CS), water의 3성분 계의 특정영역에서, 안정한 큐빅상의 액정이 형성되었다. 3상 구조도 작성을 통하여 큐빅 액정영역, 헥 사고날 영역, 물과 헥사고날이 혼제된 영역, 역미셀 영역을 확인하였고, SAXS (small angled x-ray scattering)분석을 통하여 그 구조를 증명하였다. 화장품의 응용으로, 큐보좀 (cubosome)에 10%의 마그 네슘아스코르빌포스페이트, 5％의 피리독신트리헥사데카노에이트를 봉입하여 캡슐화하였다. 큐보좀의 occlusive 효과는 역미셀(reverse micelle)보다 1.7배 우수한 효과를 가졌다. 큐보좀을 분산제인 poloxamer를 사용하여 W/O 에멀젼을 만든 것으로부터 큐빅구조의 액정상으로 회복되는 것을 새롭게 발견하였다. 따라서, DGPA의 양친매성지질의 특성을 이용하여, 큐빅상의 액정을 형성하는 기재로써 화 장품 산업과 의약품분야에서 경표피흡수제로써 응용이 가능할 것으로 기대된다.

본고는 저학년 학생들이 쉽게 글자를 틀리게 서사하고, 쉽게 잘못 인식하는 태도에 중점을 두고 서술되었다. 선행 연구의 기초 위에서 字理교수법과 部件교수법을 상호 비교하여 보았다. 모 소학교 2학년의 두 개반을 대상으로 실험을 실시한 결과 字理교수법이 部件교수법보다 학생들의 한자 학습에 더 긍정적 효과를 미치고 있음을 알 수 있었다. 이 실험결과를 토대로 본고에서는 한자의 조자 방법을 분류하고, 字理교수 학습법을 제안하였다.

본 연구는 참다래 비가림 시설재배에서 인공수분이 착과 및 과실품질에 미치는 영향과 안정적인 착과를 위한 유효수분기간을 확인하고자 수행하였다. 또한 최근 참다래 재배농가들에서 많이 수행되고 있는 현탁액을 이용한 인공수분의 효과를 확인하고자 하였다. 인공수분은 비가림 시설재배에서뿐 아니라 노지재배에서도 참다래의 착과량이 개선되었으며 중량증가와 당도향상의 과실품질 개선효과가 확인되었다. 유효수분기간 확인을 위하여 만 개 후부터 매일 7일간 인공수분이 수행되었다. 과실의 착과율, 과실당 종자수, 그리고 과실생장량은 만개 후 4 일까지 차이가 나타나지 않았으나 만개 후 5일부터는 분명하게 감소하였다. 결과적으로 참다래 비가림 시설재 배에서 유효수분기간은 만개 후 4일 이내로 나타났다. 또한, 현탁액을 이용한 인공수분은 석송자를 이용한 것과 착과량과 과실품질의 차이를 나타내지 않았다. 따라서, 화분 현탁액을 이용한 인공수분은 참다래 재배에서 노동력을 절감할 수 있는 매우 효율적인 수분방법이 될 수 있을 것이다.

In this study, we investigated the precipitation behavior of the R-phase precipitated at the initial stage of aging and its effects on the mechanical properties of 25%Cr-7%Ni-2%Mo-4%W super duplex stainless steel. The R-phase was mainly precipitated at the interface of ferrite/austenite phases and inside of the ferrite phase during the initial stage of aging. It was transformed into the σ-phase with an increase of the aging time. The ferrite phase was decomposed into a new austenite(γ2)phase and the σ-phase by an aging treatment. The R phase was an intermetallic compound showing higher molybdenum and tungsten concentrations than the matrix and also showed higher molybdenum and tungsten concentrations than the σ phase. In the initial stage of aging, precipitation of the R-phase did not change the hardness, the strength and the elongation. The hardness and the strength increased upon a longer aging time, but the elongation rapidly decreased. These results show that the R-phase did not significantly affect the hardness and the strength, though it did influence the elongation.

This study examined differences in brand attitude bases between Japanese and Americans. ‘Pride’ was a universal predictor of brand attitudes among both Japanese and American participants. However, Japanese consumers strongly emphasized ‘emotional attachment’, whereas Americans’ brand attitudes mostly derived from product functionality. The reason was discussed in light of Cultural-psychology.

All aspects of individual consumer as well as situational affecting on decisions are influenced by the social and cultural structure in which the consumer is embedded. Recently, there has been a growing worldwide phenomenon whereby tourists visit an attraction or destination as a result of that place being portrayed or represented in the popular cultural forms of the media that are not directly related with tourism promotion or marketing. A number of studies have suggested that such portrayals and features of mass media can act as powerful forces that stimulate tourism demand (Beeton, 2001). Representations and images of tourist destinations constructed by popular cultural forms of media such as films, television and literature play a significant role in influencing people’s holiday decision-making process (Iwashita, 2006). Where trade in images, expectations, dreams, and fantasies are made in tourism (Selwyn, 1996), those media representations and images of tourist destinations play a significant role in influencing people’s decision-making process. The tourism industry also is increasing appliance of images that are drawn from popular culture associated with places to promote tourist destinations and to distinguish themselves from each other. While these researches contribute to the understanding of the influence of pop culture on tourism phenomena, only few studies have investigated on the actual linkage between the pop culture and tourism perceptions/behaviors. The reason why pop culture involvement can be related to the actual intention to visit is due to the fandom created relating to the pop culture. The notion of fandom has been put forward in order to understand the link in between the pop culture and the mass audience in diverse realms (Couldry, 2007). Fandom in recent years have been understood to dismiss the negative view of pathological and the stem for alienating qualities of modern society, and accepted as a phenomena widely spread in post-industrial societies (Jenson, 1992). It is then when transitional moment takes place, in the head and heart of the fan or tourist, that the fascination begins which provides the motivation to visit the locations (Reijnders, 2011). With such cultural industries in modern society constantly produce countless contents that can be utilized as objects of fandom, resulting in actual visit to a place associated with a specific destination serving as an effective strategy for building popular cultural capital in modern society. It was therefore decided to investigate this phenomenon in more depth through empirical research to investigate how and to what extent popular cultural forms of the media (those not directly associated with tourism and destination marketing) have an effect on international tourism, and future, to identify what roles they play in influencing tourists from emerging market in terms of their travel destination image and their perception about places to visit within the chosen destination. The phenomenon in this study focuses on the Korean wave, so called Hallyu, as it is one of the pop culture phenomenon that has gained much recognition across not only within Asian countries but also recently in Western countries via pop songs, soap operas, movies, and other forms of mass media entertainment. In this study, diffusion model suggested by Rogers (1995) was used. The diffusion of Rogers’s innovation framework is proving flexible enough to conceptualize many kinds of social change, including change through processes of public dialogue and civic participation, change within organizations, as well as change through public agenda setting and media effects. Many studies have incorporated diffusion theory to explain such cultural phenomenon to gain more enrich result, however, no other studies have looked into the degree of diffusion stage in a macro level according to the regions. However, to obtain the overall view of the diffusion of such pop culture, it is needed to see the diffusion process proceeding globally as even the same fandom may differ in characteristics based on not only the diffusion stage but also its distinctive characteristics of social system. As a result, according to the diffusion stage of Hallyu, it is expected to differ in formation and perception on destination image. Previous studies identify destination image into cognition and affect which are two conceptually different, yet highly correlated components (Lee, 2008). The cognitive component leading to some internally accepted attributes, a more or less derived from factual information. On the other hand, the affective component relates to a diffusive feeling, which can become important when a decision to travel is actually considered (Russel, 1980). Such image constructed by tourists contains an individual or group perception of a particular place (Fakeye and Crompton 1991). It is expected that the image construction will vary according to the stage of the diffusion. This study incorporates diffusion theory to develop a better understanding of the diffusion process and the current situation of the Korean Wave globally to see whether such diffusion process varies according to region. Then, the effect of such difference in diffusion stages on the intention to visit the destination country was investigated. Thus, preliminary research was conducted first to see the Korean Wave phenomenon globally. In order to analyze the diffusion stage thoroughly, three regions of Asia, America, and Europe were selected. According to the diffusion degree of the Korean wave, seven representative countries were elected regarded to the regions. Along with literatures, in-depth interviews were conducted. The semi-structured form with an interview guide method was presented with reflexive interviewing techniques in order to ensure comprehensiveness (Athos & Gabarro, 1978). Then, a survey was conducted to examine the effect of pop culture involvement on formation and perception of destination image in China and Russia. Choice of countries is not only resulting from recognition as the potential future powerhouse in industry, but because it is the two countries take place as one of the highest increase in the number of tourists visiting Korea recently (KCTI, 2013). In addition, most importantly, China represents to be in the highest stage of diffusion of Korean pop culture, and Russia as one of the lowest. Additionally, the moderating effect of travel intention and travel behavior was preceded. From this, it aims to provide deeper understanding implications for targeting tourists. The hypotheses were tested with a data set developed from field survey using only online survey. Of the 265 samples collected, 8 were returned incomplete. An additional 18 samples were deleted for further analysis, as the answers were unusable. In total 239 samples – 120 and 119 samples from China and Russia respectively – were subjected for final analysis. The result in Study 1 revealed some commonalities and differences among regions. Overall, uniqueness was what made people first be interested. It was mostly pursued by young women yet those who are sometimes extremist. Thus, being open-minded to other cultures was found to be important when accepting other cultures. Moreover, it revealed that it impacts on national image to be more positive as it replaces the negative image related to war and North Korea. However, despite some commonalities, distinctive differences were disclosed among regions, especially between Asian countries and Western countries. In terms of Asia, it was found that cultural similarities have influenced the early acceptance of Korean pop culture. It has been spread since 1997, through television mostly with sensuous contents that were unique in other countries. The contents were mostly appealing to women as the characters shown in soap opera were different to others. This is very different to Europe of America where the diffusion starting in the mid 2000 through the Internet. Uniqueness captured consumers, yet in a different way from Asian countries. The easy going and entertaining aspect was the appealing factor, with word of mouth and human power was what influenced in introduction of Korean pop culture. In addition, those who were into Japanese culture were easily approached to Korean pop culture. The diffusion stage was considered to be less than 10%, with very young women interested with comparison with Asia where it was about 70%. Moreover, it was found that Asian consumers are interested in Korean brand products, such as cosmetics and clothing, and Western consumers are more interested in culture and food. Then, on the survey proceeded where China and Russia was chosen based on the preliminary qualitative research as a two different stage of diffusion according regions/countries, t-test provided evidence to support the claim that depending the diffusion stage of pop culture, the effect on formation and perception of destination image differs. A significant differences were obtained in pop culture involvement, destination image (cognitive and affective), and on visit intention. Based on the t-test statistics for Korean pop culture involvement (t = 8.491, p < .000), the cognitive image (t = -3.341, p < .001), the affective image (t = 2.050, p < .05), and visit intention (t = 2.072, p < .05) were significant. Thus, when highly involved in Korean pop culture, rather than cognitive image, consumers are more likely to be involved with affective image which relates to the actual visit intention. The results corroborated several hypothesized relationships, popular culture involvement in accordance to nation affect the destination image and perception. When more highly involved, more positively it relates to affective image and the visitation intention. The findings reported in this study have managerial implications. One is that as the relation differs according to the diffusion stage, spreading pop culture may not yield visible output instantly, yet as it relates to the actual visitation intention, international pop culture activities should be supported. Second, as shown from the diffusion process globally, distinctive characteristics of each culture should be considered more when spreading such sub-culture. Lastly, therefore, it can be suggested, that according to the countries, different approach should be made in order to induce tourist from other countries. However, this study focuses more on the macro level of the phenomenon. Therefore, future research is needed to provide more evidence on the micro level and more in-depth research. In addition, this study precedes empirical study only in China and Russia. Therefore, more diverse countries should be explored and compared.

Sambucus sieboldiana (SS) is a member of the family Caprifoliaceae and has been recommended as a functional material because of its several bioactivities. Although numerous literatures are available on the pharmacological and biological activities, the biological activity of SS in bone regeneration process has not yet been well-defined. Therefore, in this study, the effect of SS was investigated in the proliferation and differentiation of MC3T3-E1 osteoblastic cell line. The treatment of SS did not significantly affect the cell proliferation in MC3T3-E1 cells. SS significantly accelerated the mineralization and significantly increased the expression of alkaline phosphatase (ALP) and osteocalcin (OC) mRNAs, compared to the control, in the differentiation of MC3T3-E1 cells. SS significantly accelerated the decrease of osteonectin (ON) mRNA expression as compared with the control in a time-dependent manner in the differentiation of MC3T3-E1 cells. These results suggest that the SS facilitate the osteoblast differentiation and mineralization in MC3T3-E1 osteoblastic cells. Therefore, there may be potential properties for development and clinical application of bone regeneration materials.

최근 충남 보령 일대에 분포하는 후기 트라이아스기의 아미산층에서 밑들이목에 속하는 날개 화석이 처음 발견되었다. 날개 화석은 그 맥의 특징에 의해 Mesopsychidae과의 Mesopsyche dobrokhotovae로 분류되었다. 이 속에 속하는 화석 곤충은 후기 트라이아스기에 세계적인 분포를 보이며 상당히 번성한 그룹이었다고 추정된다. 현생의 밑들이는 나뭇잎, 식물 줄기 등에 매달려 있거나 습한 환경에서 작은 곤충을 섭식하며 생활한다. 따라서 밑들이 화석의 존재는 후기 트라이아스기 동안 남포 층군이 퇴적될 당시의 서식 환경이 이미 현생의 환경과 상당히 비슷했다는 것을 지시한다. Mesopsyche dobrokhotovae는 우리나라에서 발견된 곤충화석 중 가장 오래된 화석의 하나이며 밑들이 화석으로는 최초의 기록이다.

The purpose of this research is to clarify the valuable industrial heritages of rice mill industry complex remained in Incheon. In order to clarify the formation of integrated historical setting of rice mill industry of Incheon, we analyzed the old map of Incheon’s old Jemulpo area and data on address, locations and happenings surrounding rice mill factories and relevant facilities. From here, we could find out the 4 representative rice mill industry area of integrated historical setting and 2 other supporting service area for rice mill industry in old city center of Incheon. Specifically, we could figure out the incremental stages to establish the rice mill industry in Incheon. In the first stage, the rice mill factories were established near foreign settlement area where trading offices and warehouses were equipped. And the second stage reflect the needs of expanding area for Japanese capitalism with the new landfill area. In the final stage, Korean rice mill owners established the korean laborers community near Korean residential area. This formation of integrated historical setting reflecting Incheon’s rice mill industry is the identical industrial heritages and urban structures to show the tension and conflict between Japanese and Korean laborers’ life in the Japanese Colonial Period.

표고버섯균의 균사생육에 적합한 배지로는 PDA 배지,MYA 배지로 조사되었으며 배양환경 조사로 균사생육에적합한 온도는 25oC롤 나타났다. 영양원 선발 결과 탄소원은 2%의 농도에서 Malt extract를 사용하였을 때 균사생장 및 밀도가 높게 나타났다. 질소원은 0.2%의 농도에서 Yeast extract를 사용하였을 때 균사생장 및 밀도가 높게 나타났다.표고버섯(산조701호)의 수종별 추출액 배지를 이용한결과, 신갈나무, 굴참나무, 상수리나무, 밤나무에서는PDA(대조구)와 같이 생장이 우수하였다. 배양기간에 따른 버섯 생산성을 조사 해본 결과, 배양 110일에서 120일에서 우수한 수확량을 보였다. 재배수종에 따른 생산성은굴참나무에서 가장 좋은 결과를 보였다.