갈매보리수나무 종자의 온도 및 여러 가지 전처리에 따른 발아반응 (Effect of Temperature and Various Pre-treatments on Germination of Hippophae rhamnoides Seeds)
-
- 한국자원식물학회지
- /
- 제25권1호
- /
- pp.132-141
- /
- 2012
본 연구는 기능성 작물, 사방용 수종, 토양개량 등 활용성이 뛰어난 갈매보리수나무의 유용 유전자원의 장기보존 및 실생번식에 도움을 주고자 종자의 발아 온도조건 및 전처리에 대한 발아특성을 구명하고자 실시되었다. 갈매보리수나무 종자는
당뇨 환자를 위한 기존의 뽕잎 건강식품의 기능을 보완할 목적으로 뽕잎분말과 DNJ 생산균주인 Bacillus subtilis MORI균의 대두발효 혼합물을 신생 당뇨유도쥐에 4주간 경구투여 하여 먹이섭취량, 체중변화, 혈당량, 내당능, 혈중 지질함량, 장기무게 등을 조사하였다. 전체적으로 당뇨유도 시험군은 정상시험군(NC군)과 비교하여 사료섭취량은 많았으나 증체량이 적어 낮은 사료효율을 보였다. 그러나 뽕잎(M군) 및 뽕잎함유대두발효물(MM군)의 투여에 의해 사료효율이 개선되었으며 특히 MM-60군에서 가장 높은 사료효율을 나타내었다. 1주일 간격으로 4주간에 걸쳐 시행한 혈당량 측정 결과 뽕잎이나 뽕잎함유대두발효물의 투여는 공복혈당을 크게 감소시켰으며 특히 MM-60군과 MM-120군은 당뇨대조군(DC군)에 비해 유의적으로 낮게 나타났다. 4주간의 시료투여 후 경구당부하시험에 의한 내당능 조사 결과 뽕잎투여나 뽕잎함유대두발효물의 투여는 혈당량을 꾸준히 감소시켰으며 특히 포도당 투여 후 120분에서의 MM-60군과 MM-120군은 DC군에 비해 유의적으로 낮은 혈당량을 보여 뽕잎 단독보다는 대두발효배양물 첨가에 의해 내당능이 크게 개선된 것으로 나타났다. 혈중 총콜레스테롤 및 중성지질 역시 DC군에서 높은 함량을 나타냈으나 뽕잎이나 뽕잎함유대두발효물 투여에 의해 지질함량이 감소하였으며 그 감량 정도는 총콜레스테롤에서는 MM-60군과 MM-120군에서 그리고 중성지질의 경우에는 M군, MM-60군, MM-120군에서 DC군에 비해 유의적인 감소를 나타내었다. 당뇨 유발에 의해 쥐의 간, 신장, 비장, 심장 등 체내 주요장기의 무게는 크게 증가하였으나 뽕잎 또는 뽕잎함유대두 발효물 투여에 의해 이들 장기의 무게는 대부분 감소하였으며 특히 MM-60군, MM-120군은 DC군에 비해 유의적인 감소를 나타내었다. 이상의 실험결과 뽕잎분말과 DNJ 생산 균주인 B. subtilis MORI균의 대두발효물의 혼합물은 신생 당뇨유도쥐의 제반 당뇨증세 완화에 긍정적으로 작용하는 것이 확인되었으며 따라서 뽕잎함유대두발효물은 앞으로 당뇨환자들에 대한 건강식품 소재로 그 활용이 크게 기대된다 하겠다.
기업환경의 국제화 및 세계화에 따라 국내에 진출하는 다국적기업의 수는 증가할 것으로 보이는데, 그들을 효율적으로 관리할 수 있는 적절한 수단은 별로 연구되고 있지 않은 것 같다. 다국적기업의 국제이전가격은 정교하게 설정되어 조세부담을 회피할 수 있기 때문에, 이를 관리하기 위해서는 다국적기업의 행태를 이해할 필요가 있다. 본 연구는 우리나라에 진출한 외국인 기업의 특성 및 환경적 요인이 국제이전가격의 설정방식에 미치는 영향을 확인하고자 하는데 그 목표를 두고 있다. 2004년 현재 우리나라에 미화 100만불 이상의 직접투자를 수행하고 있는 외국인 투자기업 861개 기업을 대상으로 설문조사를 시행한 결과 121개 기업이 응답하여 이를 본 연구의 분석자료로 사용하였다. 종속변수로는 국제이전가격설정방법이 시장기준 혹은 원가기준에 의거하였는지의 여부를 묻는 2원적변수를 채택하였다. 시장기준방법의 경우 객관성이 높아 세무당국이 선호하는 방법임에 비해 원가기준은 경영자의 주관적인 판단이 개입될 소지가 많아 객관성이 떨어진다는 점에서 구분되기 때문이다. 독립변수로는 법인세, 관세, 세무당국과의 관계, 세무조사가능성, 현지투자자의 지분율, 내부거래비중, 매출액 및 제품수명주기가 채택되었고, 통제변수로는 중소기업여부 및 투자자의 국적이 더미변수의 형태로 포함되었다. 분석 결과를 살펴보면 세무변수로는 법인세와 관세가 유의하게 나타났는데, 그 중요도가 높을수록 경영자에게 재량권이 있는 원가기준이전가격방식을 선호하는 것으로 나타났다. 또 세무당국과의 관계를 중요하게 평가할수록 시장기준이전가격방식을 선호하는 것으로 나타났는데, 현지 정부는 객관성이 높은 시장기준을 가장 선호하기 때문에 기업의 입장에서 이 점을 고려한 것이라 생각할 수 있다. 제품 수명주기의 성숙도가 높을수록 원가기준을 선호하는 것으로 나타났는데, 이는 제품의 성숙도가 높을수록 경쟁 때문에 현지자회사가 시장을 확보하는데 어려움을 느끼게 되므로 이를 지원하는 수단으로 원가기준을 선호하는 것으로 보인다.
The prenatal care is the preventive medical service to help the pregnant mother deliver the healthy baby. It's regular examines give some chances to check-up the healthy conditions. This thesis concentrates on the CRM system to support an effective prenatal care system and prove the effectiveness of it. As CRM is the adapted management related to the customer's own information, it is important to develop the CRM model classified by the patients characteristics. A general hospital in Busan operated the CRM system to carry out the effective prenatal care and there is an analysis to ensure the effectiveness of CRM system for the pregnant women in our maternity ward. The results can be summarized as follows: 1) According to the comparisons with the CRM system, we can conclude the system is desirable. (1) Maternal Age : In the age distribution, the prenatal visit frequency, triple marker freqency, oral GTT and targeted ultrasonography in the experimental group in 30 to 34 years old is higher on the whole. For over 35 years old group, the higher frequency comes out in the oral GTT and targeted ultrasonography and for 25 to 29 years old group the different figure shows just in the targeted ultrasonography. (2) Area of residence: There is a clear difference in all the items in Busan and near area but no sign of difference in prenatal visits and oral GTT in other residencial area. Especially in the targeted ultrasonography the higher figure shows in the experimental group located in the both areas. The targeted ultrasonography is known as the specific examination which should be examined by the specialists, on the contrary the other examinations can be operated in the small clinic. So the public information and seminars related with ultrasonography increases the check-up frequency. The clinic requests some ultrasonographical examinations to the specialists in general hospital. (3) Parity: The clear difference shows that the CRM system causes the prenatal visit frequency to become higher in experimental group. The figure is 9.7 times and 8.6 times each. This is opposite that the past study said multiparity reduced the average prenatal visits. But the result of CRM is considered as the method to help the multiparity understand the importance of the prenatal care. (4) Obstetrical history: In the experimental group of the spontaneous delivery group, the figure is higher in the prenatal visit frequency, triple marker, oral GTT and targeted ultrasonography but the Caesarean section delivery group has higher figure in targeted ultrasonography. (5) In the first check-up, the rate of targeted ultrasonography in under 16 week pregnancy, in the 16 week pregnancy to 32 week pregnancy and the over 32 week pregnancy in the experimental group is upper than the compared one. For the oral GTT, there is a difference in under 16 week pregnancy but no difference in prenatal visits and triple marker. 2) The analysis of characteristics of prenatal care through the decision tree resulted in the fact that the most important variable is the residential area. After the delivery frequency is following, the obstetrical history and maternal age are in order. It is the same result in the triple marker and oral GTT. Consequently it is the same order of important variables in CRM system. The effectiveness of CRM system is proved in this study. The CRM system is a marketing method to control and lead the customers through the segmentation of customer data. It increases the new customer aquisition, maintenance of loyal customers, augmentation of customers value, activation of potential customers and creation of life time customers. So eventually it can enlarge the customers value. The medical institution should make efforts to establish the data base enforced by the customer's information on the underlying ordinary data system to carry out the CRM system effectively. In addition, it should develop the a variety of marketing strategy in order to set up one to one marketing satisfying the needs of individual patients.
The wall shear stress in the vicinity of end-to end anastomoses under steady flow conditions was measured using a flush-mounted hot-film anemometer(FMHFA) probe. The experimental measurements were in good agreement with numerical results except in flow with low Reynolds numbers. The wall shear stress increased proximal to the anastomosis in flow from the Penrose tubing (simulating an artery) to the PTFE: graft. In flow from the PTFE graft to the Penrose tubing, low wall shear stress was observed distal to the anastomosis. Abnormal distributions of wall shear stress in the vicinity of the anastomosis, resulting from the compliance mismatch between the graft and the host artery, might be an important factor of ANFH formation and the graft failure. The present study suggests a correlation between regions of the low wall shear stress and the development of anastomotic neointimal fibrous hyperplasia(ANPH) in end-to-end anastomoses. 30523 T00401030523 ^x Air pressure decay(APD) rate and ultrafiltration rate(UFR) tests were performed on new and saline rinsed dialyzers as well as those roused in patients several times. C-DAK 4000 (Cordis Dow) and CF IS-11 (Baxter Travenol) reused dialyzers obtained from the dialysis clinic were used in the present study. The new dialyzers exhibited a relatively flat APD, whereas saline rinsed and reused dialyzers showed considerable amount of decay. C-DAH dialyzers had a larger APD(11.70
The wall shear stress in the vicinity of end-to end anastomoses under steady flow conditions was measured using a flush-mounted hot-film anemometer(FMHFA) probe. The experimental measurements were in good agreement with numerical results except in flow with low Reynolds numbers. The wall shear stress increased proximal to the anastomosis in flow from the Penrose tubing (simulating an artery) to the PTFE: graft. In flow from the PTFE graft to the Penrose tubing, low wall shear stress was observed distal to the anastomosis. Abnormal distributions of wall shear stress in the vicinity of the anastomosis, resulting from the compliance mismatch between the graft and the host artery, might be an important factor of ANFH formation and the graft failure. The present study suggests a correlation between regions of the low wall shear stress and the development of anastomotic neointimal fibrous hyperplasia(ANPH) in end-to-end anastomoses. 30523 T00401030523 ^x Air pressure decay(APD) rate and ultrafiltration rate(UFR) tests were performed on new and saline rinsed dialyzers as well as those roused in patients several times. C-DAK 4000 (Cordis Dow) and CF IS-11 (Baxter Travenol) reused dialyzers obtained from the dialysis clinic were used in the present study. The new dialyzers exhibited a relatively flat APD, whereas saline rinsed and reused dialyzers showed considerable amount of decay. C-DAH dialyzers had a larger APD(11.70
We frequently use search engines to find relevant information in the Web but still end up with too much information. In order to solve this problem of information overload, ranking algorithms have been applied to various domains. As more information will be available in the future, effectively and efficiently ranking search results will become more critical. In this paper, we propose a ranking algorithm for the Semantic Web resources, specifically RDF resources. Traditionally, the importance of a particular Web page is estimated based on the number of key words found in the page, which is subject to manipulation. In contrast, link analysis methods such as Google's PageRank capitalize on the information which is inherent in the link structure of the Web graph. PageRank considers a certain page highly important if it is referred to by many other pages. The degree of the importance also increases if the importance of the referring pages is high. Kleinberg's algorithm is another link-structure based ranking algorithm for Web pages. Unlike PageRank, Kleinberg's algorithm utilizes two kinds of scores: the authority score and the hub score. If a page has a high authority score, it is an authority on a given topic and many pages refer to it. A page with a high hub score links to many authoritative pages. As mentioned above, the link-structure based ranking method has been playing an essential role in World Wide Web(WWW), and nowadays, many people recognize the effectiveness and efficiency of it. On the other hand, as Resource Description Framework(RDF) data model forms the foundation of the Semantic Web, any information in the Semantic Web can be expressed with RDF graph, making the ranking algorithm for RDF knowledge bases greatly important. The RDF graph consists of nodes and directional links similar to the Web graph. As a result, the link-structure based ranking method seems to be highly applicable to ranking the Semantic Web resources. However, the information space of the Semantic Web is more complex than that of WWW. For instance, WWW can be considered as one huge class, i.e., a collection of Web pages, which has only a recursive property, i.e., a 'refers to' property corresponding to the hyperlinks. However, the Semantic Web encompasses various kinds of classes and properties, and consequently, ranking methods used in WWW should be modified to reflect the complexity of the information space in the Semantic Web. Previous research addressed the ranking problem of query results retrieved from RDF knowledge bases. Mukherjea and Bamba modified Kleinberg's algorithm in order to apply their algorithm to rank the Semantic Web resources. They defined the objectivity score and the subjectivity score of a resource, which correspond to the authority score and the hub score of Kleinberg's, respectively. They concentrated on the diversity of properties and introduced property weights to control the influence of a resource on another resource depending on the characteristic of the property linking the two resources. A node with a high objectivity score becomes the object of many RDF triples, and a node with a high subjectivity score becomes the subject of many RDF triples. They developed several kinds of Semantic Web systems in order to validate their technique and showed some experimental results verifying the applicability of their method to the Semantic Web. Despite their efforts, however, there remained some limitations which they reported in their paper. First, their algorithm is useful only when a Semantic Web system represents most of the knowledge pertaining to a certain domain. In other words, the ratio of links to nodes should be high, or overall resources should be described in detail, to a certain degree for their algorithm to properly work. Second, a Tightly-Knit Community(TKC) effect, the phenomenon that pages which are less important but yet densely connected have higher scores than the ones that are more important but sparsely connected, remains as problematic. Third, a resource may have a high score, not because it is actually important, but simply because it is very common and as a consequence it has many links pointing to it. In this paper, we examine such ranking problems from a novel perspective and propose a new algorithm which can solve the problems under the previous studies. Our proposed method is based on a class-oriented approach. In contrast to the predicate-oriented approach entertained by the previous research, a user, under our approach, determines the weights of a property by comparing its relative significance to the other properties when evaluating the importance of resources in a specific class. This approach stems from the idea that most queries are supposed to find resources belonging to the same class in the Semantic Web, which consists of many heterogeneous classes in RDF Schema. This approach closely reflects the way that people, in the real world, evaluate something, and will turn out to be superior to the predicate-oriented approach for the Semantic Web. Our proposed algorithm can resolve the TKC(Tightly Knit Community) effect, and further can shed lights on other limitations posed by the previous research. In addition, we propose two ways to incorporate data-type properties which have not been employed even in the case when they have some significance on the resource importance. We designed an experiment to show the effectiveness of our proposed algorithm and the validity of ranking results, which was not tried ever in previous research. We also conducted a comprehensive mathematical analysis, which was overlooked in previous research. The mathematical analysis enabled us to simplify the calculation procedure. Finally, we summarize our experimental results and discuss further research issues.