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Pollination biology of Caesalpinia decapetala (Leguminosae) in Korea

  • Son, Hyun-Duk;Im, Hyoung-Tak
    • Journal of Species Research
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    • v.4 no.2
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    • pp.145-151
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    • 2015
  • Morphological changes of flowers and insect visitors were observed to investigate pollinator of Caesalpinia decapetala. The flowers of C. decapetala are protandrous. Functionally, the flower is changed from male to female. As a male, pollen grain is released after anther dehisced while style is immature. After completed pollen grain release, the style starts to lengthen. It helps the stigma to easily touch the carpenter bee's thorax covered with pollen grain. At this time, flower functions as a female. The majority of taxa and individuals observed were Hymenoptera. The most frequent visitor was the Xylocopa appendiculata circumvolans, carpenter bee. Carpenter bees exhibited only typical pollinator behavior among flower visitors, with touching reproductive organs and seeking nectar at the same time. The pollination behavior is as follows. Soon after carpenter bees perceived guide mark, they foraged rightward and grasped style and stamens with legs and they inserted proboscis into standard petal to seek nectar. With this behavior, the pollen grains of the male flower transfer to the ventral thorax of the carpenter bee. As the carpenter bee moves to another female flower, the deposited pollen grains are delivered to the stigma.

Carbonated beverage consumption of dental hygiene students (치위생과 학생의 탄산음료 섭취실태에 관한 연구)

  • Jung, Eun-Ju;Youn, Hye-Jeong
    • Journal of Korean society of Dental Hygiene
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    • v.17 no.4
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    • pp.631-646
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    • 2017
  • Objectives: The purpose of the study was to investigate the carbonated beverage consumption and related factors of dental hygiene students in Gwangju Jeonnam. Methods: A self-reported questionnaire was completed by 343 dental hygiene students in the Gwangju Jeonnam area from May 17, 2017 to June 1 based on convenience sampling. The questionnaire consisted of general characteristics of the subjects, the frequency of carbonated beverage intake, its degree of impact on oral health, oral care behavior following the intake of carbonated beverages, and the method of intake. Results:There were 293 people (85.4%) who drink carbonated beverages. The intake frequency was an average of 3.9 times a week, and the most frequently consumed beverage was cola with an average of 1.8 times a week. The intake frequency of carbonated beverage was correlated with a higher share of the cost of the beverage in the subject's monthly allowance, a lower intention of ceasing intake of carbonated beverage henceforth, and a lower grade. Conclusions: It is necessary to raise awareness on carbonated beverages through nutrition education concerning beverages including the harmful effects of carbonated beverages and reinforcement of oral health education in regular education courses. In addition, it is considered necessary to refrain from the consumption carbonated beverages by oneself as a preliminary dental hygienist.

Sensitivity of Bordetella bronchise ptica Isolated from Pigs Affected by Infectious Atrophic Rhinitis to Chemotherapeutic Agents (전염성위축성비염돈(傳染性萎縮性鼻炎豚)으로부터 분리(分離)한 Bordetella bronchiseptica의 화학요법제(化學療法劑)에 대(對)한 감수성시험(感受性試驗))

  • Kang, Byong Kyu
    • Korean Journal of Veterinary Research
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    • v.20 no.2
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    • pp.159-165
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    • 1980
  • A total of 98 strains of Bordetella bronckiseptica isolated from pigs affected the infectious atrophic rhinitis(AR) during 1978 were surveyed for drug sensitivity to 26 chemotherapeutic agents, and minimum inhibitory concentration(MIC), incidence rate of resistant strain and resistant patern from the strains which were obtained from the different pig farm in Jeonnam province were examined. The results obtained are summarized as follows. 1. Most of the strains tested were resistant to Ampicillin (AB, PC), spiramycin(SPO, sulfa drugs (SD) (MIC:$400.0{{\mu}g/ml}$) and streptomycin(SM) (MIC:$200.0{{\mu}g/ml}$). Of the 75.0% of strains were also resistant to penicillin(PC) (MIC:$200.0{{\mu}g/ml}$) and of the 14.3 of strains were inhibited to grow to tetracycline(TC), chlortetracycline(CTC), oxytetracyc-line(OTC), erythromycin(EM), tylosin(TS), leucomycin (LM) and chloramphenicol (CP) (MIC:$6.25{{\mu}g/ml}$). On the other hand, most of the strains tested were inhibited to grow to kanamycin(KM), gentamycin(GM) neomycin(NM) (MIC:$25.0{{\mu}g/ml}$) and to colistin(CL) (MIC:$12.5{{\mu}g/ml}$). 2. Incidence rate of resistant strains to main chemotherapeutic agents was 100.0% of sulfa drugs, 96.4% of streptomycin, 85.7% of penicillin, tetracycline, chloramphenicol and erythromycin, 46.4% of gentamycin, 17.9% of colistin and 0.0% of kanamycin and nalidixic acid.

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Effects of LED on Growth, Morphogenesis and Eleutheroside Contents of in vitro Cultured Plantlets of Eleutherococcus senticosus Maxim (가시오갈피 기내 식물체의 생장, 형태형성 및 eleutheroside 함량에 미치는 발광다이오드의 효과)

  • Jeong, Jae-Hun;Kim, Young-Seon;Moon, Heung-Kyu;Hwang, Sung-Jin;Choi, Yong-Eui
    • Korean Journal of Medicinal Crop Science
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    • v.17 no.1
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    • pp.39-45
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    • 2009
  • The effects of red, blue, and far-red light by illumination of light emitting diodes (LEDs) on growth, morphogenesis and eleutheroside contents of in vitro plantlets of Eleutherococcus senticosus were examined. As a control, plantlets were grown under a broad spectrum white fluorescent lamp (16/8 h illumination). The length of plantlets grown under the red/blue LEDs was taller than those under fluorescent lamps. Leaf area, root length and fresh weight of plantlets were highest under blue light compared to other kinds of light sources. Chlorophyll contents in plantlets grown under fluorescent lamps were higher than those in plantlets grown under LED illumination. Production of eleuthroside B and E in plantlets was highest under blue LED. However, production of eleuthroside E1 was highest under fluorescent lamps. These results suggest that plant growth and eleuthroside accumulation can be controlled by wave length of light under LED illumination system.

Ecological Value of Tidal-flat Island in Jeonnam Province and Its Validity for Designating Provincial Park (전남 섬갯벌의 생태적 가치와 도립공원 지정의 타당성)

  • Hong, Sun-Kee;Kim, Jae-Eun;Oh, Kang-Ho;Ihm, Hyun-Shik
    • Korean Journal of Ecology and Environment
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    • v.46 no.1
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    • pp.41-52
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    • 2013
  • To decide on the designation of a tidal-flat Provincial Park, a study area was defined in line with domestic and international case studies of Provincial Parks. A survey on landscape, geology, biota, and cultural resources was conducted in four tidal-flat areas including Bigeum-myeon and Docho-myeon, which are part of the UNESCO Biosphere Reserve in Shinan, Jeollanam-do. To identify areas most suitable to be designated as Provincial Park, a PSR evaluation process was adopted. This has resulted in the selection of the 'Palgupo' area surrounding Bigeum, Docho, Haui, Shinui, Jaeun, Amtae, Palgeum, Anjwa and Jangsan. Also the tidal-flat areas at Aphae-myeon, which are ecologically linked with the Jeungdo Tidal-flat Provincial Park, were included. The selected areas resulting from this study will meet various characteristics of tidal-flat ecosystems including naturalness, ecological network, rarity and eco-cultural diversity. After the tidal-flat Provincial Park has been specified, there is a need to perform a long-term sustainable management plan.

Influence of Coffee Education on Importance and Satisfaction of Coffee House Selection Attributes in Gwangju and Jeonnam Area (커피교육이 커피전문점 선택속성의 중요도와 만족도에 미치는 영향 - 광주·전남 지역을 중심으로 -)

  • Khil, Jin-Mo
    • Journal of the Korean Society of Food Culture
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    • v.27 no.2
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    • pp.184-192
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    • 2012
  • The purpose of this study was to analyze the general characteristics of coffee house consumers as well as the importance and satisfaction of selection attributes of specialty coffee houses according to length of coffee education period. Applicants in the Gwangju and Jeonnam area who had finished their Barista 2 grade certificate examination participated in a survey on March 12, 2011. Further, university students living in Gwangju participated as subjects who had never experienced coffee education from March 15 to March 31, 2011. Two-hundred and one subjects participated in the survey, and 184 questionnaires were used for analysis. Regardless of coffee education experience, quality of coffee was important, but higher educated subjects showed the lowest satisfaction of coffee from a coffee house (p<0.01) in terms of attributes such as freshness of coffee beans (p<0.01) and overall taste (p<0.01). Further, subjects who received no or little education demonstrated high correlation between importance/satisfaction of 'brand' and 'employee' compared to subjects who studied more than 2 semesters. These results provide future coffee house entrepreneurs and baristas with market information and marketing strategies for understanding customers' coffee house selection attributes.

A Study on the Recognition of Marine Products in Elementary School Students in the Jeonnam Area (전남지역 초등학생의 수산물 인식에 대한 연구)

  • Jeon, Eun-Raye;Kim, Gyung-Hee;Hwang, Kum-Hee;Jung, Lan-Hee
    • The Korean Journal of Food And Nutrition
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    • v.28 no.6
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    • pp.1045-1055
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    • 2015
  • The purpose of this study was to investigate the eating habits and nutritional knowledge of elementary school students in regards to seafood in school meals. More than 80.6% of elementary school students reported an 'average' preference for seafood. While 'taste' and 'healthy food' were common reasons to prefer marine products, 'unpleasant taste and smell' was a common reason not to prefer seafood. Students in general stated 'eating if possible' as their attitude towards seafood in school meals, 38.1% responded 'eating all' as their intake level. There was a significant difference between preference for seafood by gender [boys, 3.44; girls, 3.64 (P<0.01)]. Also, students significantly difference preferred some types of seafood over others. The students who enjoyed eating seafood had more regular and balanced diets and a better attitude toward dietary life and health than did the counterparts who did not prefer seafood. A significant difference (P<0.05) in knowledge existed according to gender; girls had a higher level of knowledge than did boys.

Paratuberculosis in mouflon (ovis musimon) : A case report (무플론 요네병 발생 사례)

  • Bae, You-Chan;Kim, Ha-Young;Kim, Heui-Jin;Yoon, Soon-Seek;Park, Jung-Won;Jean, Yong-Hwa;Cho, Kyoung-Oh;Kang, Mun-Il
    • Korean Journal of Veterinary Research
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    • v.46 no.3
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    • pp.271-274
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    • 2006
  • A 2-years-old female domesticated mouflon with a clinical history of chronic diarrhea and emaciation was submitted to NVRQS. Grossly, there were severe thickening of small intestine wall and enlargement of mesenteric lymph nodes. Microscopically, severe granulomatous inflammation was found in small and large intestine, mesenteric lymph nodes, spleen and liver. By Ziehl-Neelsen stain, innumerable acid-fast rod bacteria were found in the cytoplasm of epitheloid and Langhans type giant cells present in these organs. By PCR assay with primer pair specific for Mycobacterium avium subspecies paratuberculosis(IS 900) with small intestine sample, strong positive reaction was detected, although the organism was not isolated from this organ. Based on the results of histopathology and PCR, we concluded that the case was a typical paratuberculosis in mouflon. As far as we know, this is the first case report of paratuberculosis in mouflon Korea.

The Study on Caddies' Satisfaction and Preference on Their Uniforms - Bounded by Jeonnam Area in South Korea- (국내 골프장 캐디 유니폼에 대한 만족도와 선호도에 관한 연구 -전남 지역을 중심으로-)

  • Kim, Sun-Young
    • Journal of the Korean Society of Costume
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    • v.57 no.8
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    • pp.24-36
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    • 2007
  • This study was performed for 235 caddies of 5 membership golf clubs in Jeonnam area to find out their attitude and usage, satisfaction and preference on uniforms $1^{st}\;to\;15^{th}$ February 2007. The result of the study could be summarized as fellows. First, 69.7% of them affirm in the inquiry of 'to feel belong' and 'to tell from others', but they showed low affirmation in other inquiries. In the case of satisfaction of wearing uniforms, they show low satisfaction in most categories such as design, color, materials, activity, and symbol. Second, the most favored color coordination is the two color coordination in the upper and bottom uniform, and the fevered design pattern is the no-pattern one with single color. The favored uniform constitutes a jacket and a trouser in spring through fall, and a parka long enough to hip line, a polo neck, a vest, and a trouser in winter Third, activity is the most important considering factor in the choice of uniform and is also the most improve-wanted factor in the presently wearing uniform. The most important factor in the characteristic of material is absorption of sweat, but there is especially high dissatisfaction in absorption. It shows that there are demands of functional design considering caddies' working environment and activities. Differentiated from other normal uniforms, the uniform should be improved for caddies to develop their specialty and to feel wearing satisfaction.

A Study on Awareness of Food Additives and Nutrition Education in High School Students (고등학생들의 식품첨가물에 대한 인식 및 영양교육의 실태 분석)

  • CHA, Min-Seon;PARK, Jong-Un;KANG, Beodeul
    • Journal of Fisheries and Marine Sciences Education
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    • v.27 no.4
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    • pp.1075-1083
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    • 2015
  • The purpose of this study consists in analyzing the reality of processed food intake by students in different educational environments such as fisheries maritime high schools and general high schools and their awareness of food additives and investigating the reality of nutrition education. In order to achieve this purpose, we selected a total of 400 students as the subjects of this study from fisheries high schools located in Busan, Incheon, Gyeongbuk, Chungbuk and Jeonnam and general high schools located in Busan, Gyeonggi and Jeonnam. The findings of this study are summarized as follows. First, when analyzing the reality of fisheries Maritime and general high school students' processed food intake, in terms of the gender difference, the female students indicated a higher processed food intake frequency than the male students and in terms of the school types, the fisheries Maritime and general high school students showed an almost similar processed food intake frequency. Second, seeing that most female and male students were aware that the food additives were unsafe substances. Third, when analyzing the reality of nutrition education, there were more students who had not received a nutrition education than the students who had received a nutrition education.