• Parasites, Hosts and Diseases
• /
• 제55권4호
• /
• pp.417-420
• /
• 2017

Hookworm infections are rare causes of acute gastrointestinal bleeding. We report a middle aged man with primary nephrotic syndrome and pulmonary embolism. During the treatment with steroids and anticoagulants, the patient presented acute massive hemorrhage of the gastrointestinal tract. The results of gastroscopy showed red worms in the duodenum. Colonoscopy and CT angiogram of abdomen were unremarkable. Capsule endoscopy revealed fresh blood and multiple hookworms in the jejunum and ileum. Hookworms caused the acute intestinal bleeding. The patient responded well to albendazole. Hematochezia was markedly ameliorated after eliminating the parasites. Hence, hookworm infection should be considered in the differential diagnosis of a patient with obscure gastrointestinal bleeding. Capsule endoscopy may offer a better means of diagnosis for intestinal hookworm infections.

• Parasites, Hosts and Diseases
• /
• 제59권6호
• /
• pp.635-638
• /
• 2021

In this study, we intended to describe a human case of lumbosacral canal sparganosis in People's Republic of China (China). A 56-year-old man was admitted to Xiangya Hospital Central South University in Changsha, Hunan province, China after having an experience of perianal pain for a week. An enhancing mass, a tumor clinically suggested, was showed at the S1-S2 level of the lumbosacral spine by the examination of magnetic resonance imaging (MRI) with gadolinium contrast. The patient was received the laminectomy from S1 to S2, and an ivory-white living worm was detected in inferior margin of L5. In ELISA-test with cerebrospinal fluid (CSF) and serum samples, anti-sparganum antibodies were detected. He had a ingesting history of undercooked frog meat in his youth. By the present study, a human case of spinal sparganosis invaded in lumbosacral canal at the S1-S2 level was diagnosed in China. Although the surgical removal of larvae is known to be the best way of treatment for sparganosis, we administered the high-dosage of praziquantel, albendazole and dexamethasone to prevent the occurrence of another remain worms in this study.

• 한국식생활문화학회지
• /
• 제35권1호
• /
• pp.86-96
• /
• 2020

This study analyzed the dietary behaviors and adaptation for Korean foods among Central Asian workers(Mongolia, Kazakhstan, Uzbekistan, Kyrgyzstan) living in South Korea to provide basic and fundamental data that allows Central Asian workers to have desirable eating habits while living in South Korea. Questionnaires were completed by 186 Central Asian workers living in South Korea. From this study, we found that 56.8% of respondents ate three meals a day, and 27.2% of respondents ate two meals a day. 29.7% of respondents had no snacks. For adapting Korean food, Mongolia, Uzbekistan, Kyrgyzstan workers had difficulties adapting spicy and salty flavors and unpleasant smell while Kazakhstan workers had difficulties due to sweet flavors and spicy and salty flavors. Men adapted better than women to adapt Korean food. Women respondents ate Korean food more often than men. And the Uzbekistan ratio of eating homeland food daily was the highest. By providing understanding of dietary patterns of Central Asian workers, these results can be used as the basic and fundamental data for their Korean food adaptation.

• Macromolecular Research
• /
• 제14권4호
• /
• pp.443-448
• /
• 2006

A novel ${\beta}$-cyclodextrin derivative (CCD-C) was synthesized with chitosan and carboxymethyl-${\beta}$-cyclodextrin. Its structure was characterized by elemental analysis, infrared spectra analysis, and X-ray diffraction analysis. The adsorption properties for guanosine 5'-monophosphate, cytidine 5'-monophosphate and uridine 5'-monophosphate were studied. Experimental results demonstrated that CCD-C had higher adsorption capability for guanosine 5'-monophosphate, and that the adsorption capacity for guanosine 5'-monophosphate was 74.20mg/g. The adsorption capacity was greatly influenced by pH, time and temperature. The introduction of chitosan enhanced the adsorption ability and adsorption selectivity of ${\beta}$-cyclodextrin for guanosine 5'-monophosphate. This novel derivative of chitosan is expected to have wide applications in the separation, concentration and analysis of nucleotides in biological samples.

• Entomological Research
• /
• 제48권5호
• /
• pp.372-383
• /
• 2018

Leptocimbex formosanus group of Leptocimbex Semenov 1896, Cimbicidae is defined and the relationships and characteristics are provided. Two new species of this group are described from Hunan and Yunnan Provinces in China: Leptocimbex shinoharai Yan & Wei sp. nov. and L. naitoi Yan & Wei sp. nov. Redescriptions of the three known species of L. formosanus group (L. formosanus Enslin 1911, L. dendrobii Rohwer 1915 and L. nigropropodea Wei & Deng 2002) and a key to all known species of this group are provided.

• The Journal of Asian Finance, Economics and Business
• /
• 제7권12호
• /
• pp.977-993
• /
• 2020

Sustainable tourism is the development of tourism activities to meet the current needs of tourists and indigenous peoples while paying attention to the conservation and improvement of resources for the development of tourism activities in the future (World Tourism Organization, 2013). With the aim of identifying factors affecting the development of sustainable tourism in the South Central Coast of Vietnam, the study conducted a typical survey of 160 tourism managers and 240 tourists traveling or have participated in tourism activities of 8 provinces in the South Central Coast of Vietnam, and used the exploratory factor analysis (EFA) analysis and regression analysis for analyzing the data. The research results show that 11 factors impact the development of sustainable tourism in the South Central Coast namely Institutions and policies for tourism development, Infrastructure, Tourism resources, Human resources for tourism, Diversity of tourism services, Relevant support services, Activities of association and cooperation for tourism development, Tourism promotion and encouragement, Tourists' satisfaction, Local community, and Other factors. At the same time, among the above factors, the factors Institutions and policies for tourism development, Infrastructure, Tourism resources, and Local community strongly impact the development of sustainable tourism in the region.

• 한국초등과학교육학회지:초등과학교육
• /
• 제34권3호
• /
• pp.288-296
• /
• 2015

This study aimed to analysis of concepts and inquiry activities related to the 'Earth Science' area in the South Korean elementary school textbooks to the current and to seek the improvement of future textbook. For the study, we were collected South Korean elementary school textbooks to the current. After the collection had been made, we were analyzed related to the 'Earth' area in the South Korean elementary school textbooks and were extracted central concepts and inquiry activities. The result of this study: First, there were 'A change in the land', 'Strata and Fossil', 'Volcanoes and Earthquakes', 'Earth and Moon', 'The weather', 'The Solar system and the Star', and 'Seasonal Change' in the central concepts related to the 'Earth' area in the South Korean elementary school textbooks to the current. Second, central concepts were almost the same but the curriculum was changed. Third, inquiry activities also were confirmed to be maintained with little change. This result was believed that it can provide a variety of suggestions at this point in changing the curriculum.

• Acta Via Serica
• /
• 제5권2호
• /
• pp.111-140
• /
• 2020

This paper focuses on the emerging patterns of educational mobility and unskilled labor migration from Uzbekistan to Japan and South Korea. Labor migration and educational mobility are becoming the next "horizon" in the expanded relationship between East and Central Asia, powered by several factors, including the efforts by Japan and South Korea to build "original" people-oriented policy engagements with the region and the demand from Central Asian states, such as Uzbekistan, to provide more labor opportunities to their young and growing populations. This paper presents the initial findings of a pilot survey that explores and occasionally compares the experiences of Uzbek migrants to Japan and South Korea, using datasets of face-to-face interviews related to various aspects of life in Japan and South Korea. The interviews were conducted face to face and online (Telegram, Skype, etc.) with 66 migrants and Japanese language school students (whom this paper treats as labor migrants masquerading as students) in Japan from November 2019 to January 2020 as well as online with 30 laborers and students in South Korea from August to September 2020.

• Archives of Pharmacal Research
• /
• 제29권12호
• /
• pp.1125-1131
• /
• 2006

This study was undertaken to elucidate the effect of diallyl disulfide (DADS), an oil-soluble organosulfur compound found in garlic, in suppressing human nasopharyngeal carcinoma cells. A potent increase (of at least 9-fold) in apoptotic cells has accompanied 1) a decrease in cell viability, 2) a increase of the fraction of S-phase cells by up to 63.8%, and 3) a transient increase of the phospho-p38 and phospho-p42/44 (phosphorylated p38 MAPK and phosphorylated p42/44 MAPK) in a time-and concentration-dependent manner. These results indicate that DADS can induce apoptosis in human nasopharyngeal carcinoma cells via, at least partly, S-phase block of the cell cycle, related to a rise in MAPK phosphorylation.

• 한국항해항만학회:학술대회논문집
• /
• 한국항해항만학회 2007년도 추계학술대회 및 제23회 정기총회
• /
• pp.198-199
• /
• 2007

이 연구에서는 36년간(1970-2005년)의 장기 데이터를 이용하여 우리나라에 영향을 미치는 태풍의 대부분이 통과하는 남해의 해수면온도 변화와 태풍의 세기 변화와의 관계가 분석 연구되었다. 우리나라 남해의 해수면온도는 연구 기간 동안 지속적으로 상승하는 추세를 보인다. 2000년 이래 6년간(2000-2005년)의 평균 해수면온도는 16.95$^{\circ}C$로 1970년대 10년간(1970-1979년)의 평균 해수면온도 15.74$^{\circ}C$보다 1.21$^{\circ}C$나 높다. 특히, 1994년 이후 그 상승폭은 크다. 태풍의 세기는 중심기압에 의하여 나타낼 수 있다. 남해를 통과하면서 우리 나라에 영향을 미친 태풍의 최저중심기압의 변화를 살펴보면 1970년 이후 지속적으로 하강하고 있음을 알 수 있다. 2000년 이래 6년간 (2000-2005년)의 평균 최저중심기압은 983hPa로, 1970년대 10년간(1970-1979년)의 평균 최저중심기압 992hPa보다 9hPa 이나 낮다. 상관 분석에 의하여, 1970년 이후의 태풍 세기 강화는 남해 해수면온도의 상승과 관련이 있다는 사실을 알 수 있었다.