• 한국자기공명학회논문지
• /
• 제21권2호
• /
• pp.44-49
• /
• 2017

Coffee is one of the top selling products in the world. There are various coffee bean species around the world. Among them, Coffea Arabica is the most popular species. However, there are few studies on the metabolites of coffee beans so far. This study demonstrates effects of the planted regions on the metabolite concentrations of coffee beans. The metabolites of coffee beans can be affected by growing area even although same species are grown. Accordingly, we studied coffee bean metabolites extracted from the same species in different regions (The brand names, Kona from Hawaii, Mocha Matari from Yemen, and Blue Mountain from Jamaica) by using mixed solvent of methanol: water: chloroform. A comparative analysis by NMR spectroscopy was performed and the statistical techniques were used to figure out the differences. As a result, we found that chlorogenic acid, caffeine, citrate, and sucrose mainly contributed to the separation of the three groups. When compared with Kona and Blue Mountain, concentrations of chlorogenic acid, caffeine, and sucrose in Mocha Matari were observed to be relatively down-regulated. In addition, compared with the two other groups, concentration of citrate in Kona was observed to be up-regulated.

• Asian Pacific Journal of Cancer Prevention
• /
• 제14권6호
• /
• pp.3619-3623
• /
• 2013

Background: The scientific evidence relating to the burden of oral diseases attributable to tobacco use has been reviewed and the need for a well-structured dental teaching program concentrating on oral cancer education and tobacco cessation interventions has been emphasized. The aim of our study was to evaluate the awareness of oral cancer and perception of tobacco use cessation counseling among dental students at all study levels in India, Saudi Arabia, the United Arab Emirates, and Yemen. Materials and Methods: A structured, pre-tested, self-administered 15-item questionnaire was used to conduct a cross-sectional survey. Data analyses including percentages, frequency distributions and tests of chi-square were generated. Results: A total of 621 (97.6%) Indian, 493 (96.5%) Saudi, 194 (96.5%) Yemeni and 187 (98.4%) United Arab Emirates respondents recognized the association between oral cancer and cigarette smoking. Although more than 96% of the students surveyed recognized the association between oral cancer and cigarette smoking and about 55% reported cigarette smoking as one of the etiological factors of oral cancer, more than 66% of students who reported cigarette smoking as an etiological factor of oral cancer disagreed/strongly disagreed with all the statements concerning tobacco use cessation. Conclusions: A higher level of oral cancer awareness did not have a positive impact on the perception of tobacco use cessation counseling among the sample surveyed.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권5호
• /
• pp.1765-1770
• /
• 2015

Background: Oral cancer presents with high mortality rates, and the likelihood of survival is remarkably superior when detected early. Health care providers, particularly dentists, play a critical role in early detection of oral cancers and should be knowledgeable and skillful in oral cancer diagnosis. Purpose: The aim of the present study was to assess the current knowledge of future Yemeni dentists and their opinions on oral cancer. Materials and Methods: A pretested self-administered questionnaire was distributed to fourth and fifth year dental students. Questions relating to knowledge of oral cancer, risk factors, and opinions on oral cancer prevention and practices were posed. Results: The response rate was 80%. The vast majority of students identified smoking and smokeless tobacco as the major risk factors for oral cancer. Most of the students (92.6%) knew that squamous cell carcinoma is the most common form of oral cancer, and 85.3% were aware that tongue and floor of the mouth are the most likely sites. While the majority showed willingness to advise their patients on risk factors, only 40% felt adequately trained to provide such advice. More than 85% of students admitted that they need further information regarding oral cancer. As expected, students of the final year appeared slightly more knowledgeable regarding risk factors and clinical features of the disease. Conclusions: The findings of the present study suggest that here is a need to reinforce the undergraduate dental curriculum with regards to oral cancer education, particularly in its prevention and early detection.

• Strategy21
• /
• 통권32호
• /
• pp.97-122
• /
• 2013

The basic stance of the Republic of Korea Ministry of Foreign Affairs was 'quiet diplomacy'. However, there had been demands for specific plans for practical protection of Dokdo. In 2011, Prime Minister Kim Hwang Sik mentioned that they are reviewing measures of stationing marines on Dokdo, while on August 10th, 2012, former president Lee Myung Bak visited Dokdo. The visit itself was meaningful as he was the first supreme commander to visit Dokdo. This paper studies on the necessity of naval power on Dokdo to maintain its effective control. The effective control must be done by a national organization in a peaceful and unimpaired method. If so, can stationing naval power, whether directly or indirectly, on Dokdo be considered a violation of 'peaceful' method? A 'peaceful' effective of control meas the right of sovereignty over a territory without other country's protest. In such terms, protecting a territory falls under practicing the right of sovereignty, and therefore does not violate 'peaceful'. In addition, looking at international cases such as Ligitan/Sipadan Case and Pedra Blanca Case, evidences such as 'navy activity', 'flyng ensign', and 'military communication facility installation' was used. In ter case of Yemen-Eritrea dispute over Hanish, methods on effective control over island and sea was also ruled by the installation of military posts and military surveillance activities. Thus, stationing naval power on Dokdo can be a way of maintaining effective control per international law. To station naval poer on Dokdo, Presidential Instruction 24 integrated Defense Guideline Enforcement Ordinance, which is domestic law, must be revised. Reason being, the Enforcement Ordinance states that the navy area of responsibility excluded Ullundo, where Dokdo is under jurisdiction of Ullungdim thus excluding navy control. In addition, considering the diplomatic situation, it is more fut to install navy radar site on Dokdo rather than 'stationing marines'. In other words, enforcing surveillance in the vicinity of Dokdo and installing radar site instead of stationing direct combatants is one way of practicing effective control without stimulating diplomatic disputes.

• 대한원격탐사학회:학술대회논문집
• /
• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
• /
• pp.808-811
• /
• 2006

The KOMPSAT-2 was developed by KARI and it was successfully launched from Plesetsk, Russia on 28th July 2006. The Korean government decided the commercialization of the KOMPSAT-2 image data and direct reception services worldwide. SPOT Image, based in Toulouse (France) was selected by KARI through an international open bidding as a foreign company for the KOMPSAT-2 image promotion over the entire world except the territory of Republic of Korea including the North Korea, the United States of America, UAE, Saudi Arabia, Kuwait, Qatar, Oman, Yemen, Egypt, Iran, Iraq, Jordan, Lebanon, and Syria. KAI (Korea Aerospace Industry Ltd.) is an engaged Korean company for this area. KARI has responsibility to operate the satellite, data acquisition, archiving for the worldwide commercialization. For the processing and delivery of the KOMPSAT-2 image data to the users of KAI and SPOT Image, KAI has the binding contract with KARI. So KAI has the responsibility for the commercial ground station operation such as user support, data processing, and the data delivery. The KOMPSAT-2 ground station is hosted in KARI, so KARI has developed the concept of KOCUST (KOMPSAT-2 Commercial User Support Team) jointly with KAI to support the data processing and delivery as KOMPSAT-2 developer and satellite operator. The main purpose of the KOCUST is to support the operational activities to provide the data and service quality to satisfy customers. KOCUST will be organized by the members of KARI and KAI together. KARI members will mainly take the role of KOCUST coordination, data processing and user support in a public sector. KAI members are going to take user desk, data validation and delivery et cetera, which are related with users. This paper describes a summarized concepts of KOCUST like organization, dedicated tasks of each part and work flow of daily operation.

• Mycobiology
• /
• 제44권4호
• /
• pp.302-309
• /
• 2016

The role of lactic acid bacteria (LAB) in honey as antifungal activity has received little attention and their mechanism of inhibitory of fungi is not fully understood. In this study, LAB were isolated from honey samples from Malaysia, Libya, Saudi Arabia, and Yemen. Twenty-five isolates were confirmed LAB by catalase test and Gram staining, and were screened for antifungal activity. Four LAB showed inhibitory activity against Candida spp. using the dual agar overlay method. And they were identified as Lactobacillus plantarum HS isolated from Al-Seder honey, Lactobacillus curvatus HH isolated from Al-Hanon honey, Pediococcus acidilactici HC isolated from Tualang honey and Pediococcus pentosaceus HM isolated from Al-Maray honey by the 16S rDNA sequence. The growth of Candida glabrata ATCC 2001 was strongly inhibited (>15.0 mm) and (10~15 mm) by the isolates of L. curvatus HH and P. pentosaceus HM, respectively. The antifungal activity of the crude supernatant (cell free supernatant, CFS) was evaluated using well diffusion method. The CFS showed high antifungal activity against Candida spp. especially The CFS of L. curvatus HH was significantly (p < 0.05) inhibited growth of C. glabrata ATCC 2001, C. parapsilosis ATCC 2201, and C. tropicalis ATCC 750 with inhibitory zone 22.0, 15.6, and 14.7 mm, respectively. While CFS of P. pentosaceus HM was significantly (p < 0.05) effective against C. krusei, C. glabrata, and C. albicans with inhibition zone 17.2, 16.0, and 13.3 mm, respectively. The results indicated that LAB isolated from honey produced compounds which can be used to inhibit the growth of the pathogenic Candida species.

• 해양안보
• /
• 제1권1호
• /
• pp.175-214
• /
• 2020

탈냉전기에 발생한 해적행위를 설명하기 위해 진행되었던 기존의 연구들은 해적행위의 부상 현상을 효과적으로 설명하지 못하였다. 첫째, 소규모의 해상강도가 대규모의 해적집단으로 성장하는 과정이 연구되지 않았다. 둘째, 소말리아 및 나이지리아와 유사한 조건의 국가에서 해적행위가 저조한 경우가 설명되지 않았다. 본 연구에서는 취약국가에서 외세의 경제 해양주권 침해가 심하게 나타날수록 해적행위의 강도와 빈도가 높아진다고 주장한다. 소말리아와 나이지리아에서는 외세에 의한 경제 해양주권 침해행위가 심하게 나타났으며, 지역 경제의 침체와 외세에 대한 적개심을 바탕으로 외국 선박을 공격하는 해적행위가 발달하기에 유리한 조건이 조성되어 해적행위의 부상이 나타났다. 한편 소말리아의 북쪽에 위치한 예멘은 대표적인 취약국가이지만 해적행위가 거의 발생하지 않았으며 외세에 의한 경제 해양주권 침해행위도 나타나지 않았다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제15권1호
• /
• pp.90-113
• /
• 2021

Electronic Records Management System (ERMS) is a computer program or set of applications that is utilized for keeping up to date records along with their storage. ERMS has been extensively utilized for enhancing the performance of academic institutions. The system assists in the planning and decision-making processes, which in turn enhances the competencies. However, although ERMS is significant in supporting the process of decision-making, the majority of organizations have failed to take an initiative to implement it, taking into account that are some implementing it without an appropriate framework, and thus resulted in the practice which does not meet the accepted standard. Therefore, this study identifies the factors influencing the adoption of ERMS among employees of HLI in Yemen and the role of such adoption in the decision-making process, using the Unified Theory of Acceptance and Use of Technology (UTAUT) along with Technology, Organization and Environment (TOE) as the underpinning theories. The study conducts a cross-sectional survey with a questionnaire as the technique for data collection, distributed to 364 participants in various Yemeni public Higher Learning Institutions (HLI). Using AMOS as a statistical method, the findings revealed there are significant and positive relationships between technology factors (effort expectancy, performance expectancy, IT infrastructure and security), organizational factors (top management support, financial support, training, and policy),environmental factors (competitiveness pressure, facilitating conditions and trust) and behavioral intention to adopt ERMS, which in return has a significant relationship with the process of decision-making in HLI. The study also presents a variety of theoretical and empirical contributions that enrich the body of knowledge in the field of technology adoption and the electronic record's domain.

• 항공우주정책ㆍ법학회지
• /
• 제32권1호
• /
• pp.53-81
• /
• 2017

우리나라에서 표적살인(Targeted Killing)은 많이 논의되지 않았지만 군사과학기술의 발전과 더불어 대(代)테러전쟁에서 핵심전략으로 떠올랐다. 표적살인 전략의 핵심요소인 무인항공기(UAV)는 조종사가 탑승하지 않은 채 원격조종으로 특정목표를 미사일로 공격할 수 있다. 이 전략은 국방예산의 절감하는 방안이면서 총력전에서 적의 수장을 제거하여 심리전에서 우위를 차지하기 위한 방안으로 주목을 받고 있다. 이에 우리나라도 한반도의 평화를 지키기 위한 전략으로서 도입을 고려할 필요가 있다. 그러나 무인항공기를 사용한 표적살인 전략은 전쟁행위인지 아니면 살인행위인지에 대한 크나큰 논란이 있다. 공격 대상인 테러리스트 등은 자신들이 공격대상이라는 사실을 알지도 못한 채 죽임을 당하기 때문에 미국 시민단체 등을 중심으로 생명의 윤리성에 대하여 문제의 제기를 하고 있다. 또한 미사일 공격으로 무고한 시민이 사망할 수 있다는 것과 자국군에 대한 오발을 행할 수도 있다는 점, 조종사가 심리적으로 겪을 수 있는 전투 스트레스 등이 주요 문제이다. 그래서 이러한 우려를 불식시키기 위해 투명성과 정당성의 확보가 필요하다. 나아가 무인항공기 표적살인 가이드라인을 제정하여 전략의 엄중한 실행과 남용을 막고 국민의 신뢰를 확보할 필요가 있다. 이러한 가이드라인에서는 미국과 같이 대통령이 단독으로 전략의 실행을 결정하는 것이 아니라 국회의 동의를 받아 실행하게 된다면 국민의 신뢰를 얻을 수 있을 것이라고 생각한다.

• Strategy21
• /
• 통권37호
• /
• pp.5-31
• /
• 2015

The Republic of Korean Navy (ROKN) started from scratch. However, ROKN demonstrated its Blue Navy capabilities successfully to the entire world by conducting "Operation Early Dawn" at the Aden Bay, Yemen in Jan 2011. On the event of the 70th anniversary of the ROKN, I would like to retrospect past gleaning from voyages and challenges we had in the past. At the very inception of the ROKN, Korean government as well as senior military leaders recognized that it had no time to spare to clean up military those were insinuated deeply by communist agents. It was the top priority of the government. The Mongumpo Operation which was not well known, conducted by ROKN was one of the clean-up drive. The Korean War sometimes called as "a fire from land put-off at the sea". The world famous "Incheon Landing" which reversed war situation from the Nakdong Perimeter also done by Sea Power. ROKN conducted various maritime operations including not only Incheon Landing, but amphibious operation at Hungnam, mine sweeping, sea convoy, Wonsan Withdrawal. On the same day of the Korean War started, 25th June 1950, unless the victory of the ROKNS Baekdusan (PC 701) at the Korean Strait, the waning lamp light of Korea could not be rekindled by the participation of the U.N. The ROKN rescued the 17th regiment of Korean Army from the isolation at the Ongjin Peninsular and transported gold and silver bars stored at the Bank of Korea to the Navy supply deposit in Jinhae safely. ROKN special intelligence unit conducted critical HUMINT which led Incheon Landing success. One of important mission ROKN conducted successfully was not only transporting war fighting materials but also U.S. provided grains to starving Koreans. ROKN participated Vietnam campaign from 1960s and conducted numerous maritime transportation operations supplying materials to Vietnam military forces along the long coastal lines. Experienced Naval Officers and enlisted men who discharged and acquired as merchant marine certificate supported most of the U.S. sea lift operations throughout the Vietnam campaign. ROK-US Combined Forces which had been honed and improved its war fighting capabilities through the Korean War and out of Vietnam jungle playing key deterrent against threat from north Korea. However, those threat level will be completely different when north Korea finish its nuclear weapon ambition. In order to stand firm against north Korean nuclear threat, I would like to expect strong political leadership supporting nuclear submarine for ROKN.