• Title/Summary/Keyword: 털

Search Result 503, Processing Time 0.03 seconds

Analysis of Factors Related to Regional Occurrence Distribution of Scrub Typhus: 2012~2016 (우리나라 쯔쯔가무시증의 지역적 발생분포와 관련된 요인 분석: 2012~2016년)

  • Seo, Choong Won
    • Korean Journal of Clinical Laboratory Science
    • /
    • v.51 no.4
    • /
    • pp.420-427
    • /
    • 2019
  • Scrub typhus is a fever-related disease that is commonly diagnosed during the autumn season. The number of patients affected by this disease continues to increase every year. However, the cause of the disease and the regional differences of its incidence are poorly understood. This study examined the epidemiological features and regional differences in the incidence of scrub typhus. The monthly incidence of cases from all reports rose to more than 90% during the fall season (October~December). Based on the analysis of the 18,851 cases in the epidemiological investigation, 14,777 (78.4%) and 4,074 (21.6%) cases occurred in high and low occurrence areas, respectively. Moreover, there were more female cases than male cases (males: 7,233 [38.4%]; females: 11,618 [61.6%]; P< 0.001). The clinical symptoms, including fever, chills, myalgia, and eschar of the body, were noted in 16,688 (89.1%), 11,533 (61.2%),11,439 (60.7%), and 6,005 (45.4%) cases, respectively. The incidence rates were higher for Gyeongnam, Jeonam, Jeonbuk, and Chungnam provinces. The areas with a high occurrence of scrub typhus were consistent with the areas experiencing a high distribution of Leptotrombidium scutellare. The incidence of scrub typhus has been rising owing to the increasing population of ticks due to global warming and increased agricultural and outdoor activities. Thus, continuous management of patients and preventive environmental measures are needed to control this disease.

Hygienic quality of eggs in the department food stores in the Incheon Metropolitan area (인천지역 백화점 유통 계란의 위생적 품질상태)

  • 이성모;김경호;이정구;박은정;이승환;홍종해
    • Journal of Food Hygiene and Safety
    • /
    • v.17 no.3
    • /
    • pp.129-136
    • /
    • 2002
  • This study was conducted to Provide basic information Promoting egg qualify improvement and hygienic control by grasping of present market egg distribution system and hygienic quality. The eggs of 57 brands collected from the department food stores in Incheon Metropolitan City were examined. Eggs were kept in room temperature in all the market and 70.2% of the brands were marked the expiration date indicating that eggs would be available over 28 days after being laid. Fifty-four % of the market eggs was classified as a special or functional egg. Expiration date and date of laying were common labelling items in all brands. These items were labelled in trade mark sheet or eggs tray. Only 66.6% of the brands had the mark about net quantity of contents. The inspection about the exterior and contents of eggs has results as follows: eggshell contamination of feces and feather-9.5%, abnormal and broken eggshell -3.9%, blood and meat spots in contents -14.7% and watery whites -1.8%. Average of Haugh Unit(HU) was 56.1 and below HU 31 were 18 of 285 eggs(6.3%), in addition, more than one egg detected in 12 brands(21.1%) among 57 brands have inferior quality. Salmonella enteritidis from eggshell and antibodies directed from S. enteritidis in the yolks of eggs available in the market were not detected. Ranges of Total bacterial count (CFU/ml) on eggshell of eggs were < 10~8.2$\times$10$_3$, and isolation ratio of Escherichia coli were 4.7%. Tetracyclines were detected in 1.8% of the eggs(1 of57 brands) by CHARMII. As mentioned above, quality control and improving distribution system were required to facilitate egg consumption and improve public health by complementing labelling items and quality standards.

The Cuttings of the Genus Lespedeza (싸리류(類)의 삽목시험(揷木試驗))

  • Han, Young Chang
    • Journal of Korean Society of Forest Science
    • /
    • v.20 no.1
    • /
    • pp.45-50
    • /
    • 1973
  • This study was investigated the methods of vegetative propagation for new Lespedeza varieties. Experimental matterials were used 6 Lespedeza species; L. maximowiczii, L. cyrtobotrya, L. angustifolioides, L. bicolor, L. maximowiczii var. tomentella, and L. japonica var. intermedia. In April a year branches were cut 15-20cm length and 3-4mm thickness and planted in sand bed (depth 150cm) to be sterilized by the 0.1% solution of Uspulun. And then the cutting beds were irrigated and shaded. The results are as follows. 1. The rooting rates of the cuttings could be found so variable among varieties from 69% of L. maximowiczii var. tomentella to 50.3% of L. japonica var. intermedia. 2. The growth performance showed statistically significant difference at 1% level among varieties. L. maximowiczii was the best, while L. japonica var. intermedia showed the wrost growth performance of them. 3. The average number of roots with more than 5 cm length per stock was revealed statistically significant difference at the 1% level among varieties from the greatest number of 6.4 of L. maximowiczii var. tomentella to the smallest number of 2.3 of L. japonica var. intermedia. 4. Total average length of the roots per stock was statistically significant so different at 1% level from the longest 279.8cm of L. maximowiczii var. tomentella to the shortest 41.1cm of L. japonica var. intermedia. 5. The average ndules with more than 1 mm in diameter per stock was statistically significant so different at 1% level among varieties from the greatest number of 34.4 of L. maximowcizii to the smallest numqer of 4.6 of L. japonica var. intermedia.

  • PDF

Taxonomy of Korean Asarum (Aristolochiaceae) by the Morphological Characters (한국산 족도리풀속(Asarum)의 외부형태학적 형질에 의한 분류)

  • Leem, Hyosun;Oh, Byoung-Un
    • Korean Journal of Plant Resources
    • /
    • v.32 no.4
    • /
    • pp.344-354
    • /
    • 2019
  • In seven species of Korean Asarum, 44 qualitative and 28 quantitative characters were reviewed taxonomically. Among 44 qualitative characters observed in vegetative and reproductive organs, the states of 27 characters were common in all the seven species. Among 28 quantitative characters, five characters have the same values in all the seven species; the number of cataphyll (2-4), leaf (2), calyx lobe (5), stamen (12) and pistil (6). White spots on adaxial surface of leaf (effectively) distinguished A. maculatum and A. versicolor from the other species. Many long soft hairs on abaxial surface of leaf distinguished A. mandshuricum from other species with short hairs. The glandular hairs on inner surface of calyx tube were divided into 2 types, reflecting the taxonomic relationships between the species: Type 1 has non-stalked glandular hairs (A. maculatum, A. sieboldii and A. sp.), and Type 2 has stalked glandular hairs (A. patens, A. versicolor, A. mandshuricum and A. misandrum). The length, shape, colour of calyx lobe and the extent to which the calyx lobe recurves, as well as the diameter and colour of calyx tube throat, were confirmed to be taxonomically valuable. In the case of glandular hair density on the surface of calyx lobe, A. patens with low density and A. sp. with high density were clearly distinct from all the other species with intermediate hair density. Meanwhile, the stylar protuberance length of A. patens (2.9-3.3 mm) was strikingly different from other species (1.4-2.5 mm). Additionally, further examination of the identities of A. yeonbyeonense and A. yeonbyeonense var. viridiluteolum is required.

Numerical analysis of Quercus L. subgenus Quercus (Fagaceae) in Korea (한국산 참나무속 참나무아속(너도밤나무과)의 수리분류학적 분석)

  • Park, Jin Hee;Chung, Myong Gi;Sun, Byung-Yun;Kim, Ki-Joong;Park, Jae-Hong;Park, Chong-Wook
    • Korean Journal of Plant Taxonomy
    • /
    • v.35 no.1
    • /
    • pp.57-80
    • /
    • 2005
  • Morphological variation of Quercus L. subgen. Quercus in Korea was examined by numerical methods including principal components analysis of major morphological characters. Principal components analysis revealed the presence of five major species groups of the subgen. Quercus in Korea; these include 1) a group consisiting of Q. acutissima and Q. variabilis individuals, 2) Q. dentata, 3) Q. aliena, 4) Q. mongolica, and 5) Q. serrata. The putative interspecific hybrid individuals occupied intermediate position between the putative parent species in the PCA plot. The analysis also strongly suggested that size and shape of leaf blade and teeth or lobes, twig diameter, size and shape of nuts, and length and width of scales are very useful in distinguishing the species and the putative hybrids of the subgen. Quercus.

Anti-acne Properties of Artemisia annua Extract In Vitro (개똥쑥 추출물의 항여드름 효능확인)

  • You, Jiyoung;Roh, Kyung-Baeg;Oh, Se-young;Jung, Yong-Taek;Park, Deokhoon;Jung, Eunsun
    • Journal of the Society of Cosmetic Scientists of Korea
    • /
    • v.47 no.3
    • /
    • pp.247-254
    • /
    • 2021
  • Acne vulgaris is a chronic inflammatory skin disease related to pilosebaceous unit. In acne lesions, hyperseborrhea, dysseborrhea, inflammatory event, and an imbalance in skin microflora, particularly an increase in Cutibacterium acnes (C. acnes) colonization comparing to other bacteria, have been observed. The objective of this study was to evaluate anti-acne effects of Artemisia annua extract (AAE) on antibacterial activity related to preservation of the balance in skin microbiome, inhibition of inflammation, and reduction of excessive sebum production. When C. acnes and Staphylococcus epidermidis (S. epidermidis) were co-cultured in the presence of AAE, the reduction of C. acnes growth by AAE was greater than that of S. epidermidis. In addition, when C. acnes was cultured in a medium containing AAE (C. acnes AAE), levels of cytokines such as interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α) and IL-6 and toll-like receptors-2 activity were decreased in comparison with C. acnes cultured in a medium without AAE (C. acnes CM). Moreover, AAE significantly inhibited excessive sebum production induced by palmitic acid. These results suggest that AAE, as a natural extract with various targets, can inhibit selective growth of C. acnes and inflammatory reactions derived from C. acnes, which are the main causes of acne, and consequently can be used as a substance to alleviate acne by reducing excessive sebum formation.

A New Mini Kiwifruit Cultivar, "Green King" (다래 신품종 "그린킹")

  • Kim, Chun-Hwan;Kim, Seong-Cheol;Song, Eun-Young;Ro, Na Young;Kim, Misun;Moon, Doo-Young;Kang, Kyung Hee;Jang, Ki-Chang
    • Korean Journal of Breeding Science
    • /
    • v.40 no.4
    • /
    • pp.461-465
    • /
    • 2008
  • "Green King" is a new mini kiwifruit variety developed at the National Institute of Subtropical Agriculture (NISA), RDA in 2005, which was an edible fruit without peeling. This variety was selected from seeds obtained from the cross breeding between Actinidia chinensis cv. "Apple Sensation" and A. arguta in 1998. Seedling and line selections were conducted from 1999 to 2002, and characteristic trials were carried out from 2003 to 2004. The branch of "Green King" sprouts strongly and the color of leaf is slightly dark green. The shape of fruit is cylindric and the color of peel is green or yellowish green without hair. The average weight of fruit is 15.9 g. The core is small and soft, the pericarp is light green. Soluble solids concentration is $15.4^{\circ}Brix$. The fruit is sweet with slightly acid taste, containing total acid 1.3%, and the yield is higher over twice than that of A. arguta. The content of vitamin C is higher than that of A. arguta. The harvesting time is from middle October. This variety can be planted in the central and southern region of Korea.

Morphological Characteristics and Growth Performance of Korean Native Black Goats (재래흑염소의 형태적 특징 및 생육특성)

  • Lee, Sang-Hoon;Lee, Jinwook;Jeon, Dayeon;Kim, Seungchang;Kim, Kwan-Woo
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.20 no.8
    • /
    • pp.149-155
    • /
    • 2019
  • This study aims to provide basic data for investigating the phenotypic traits and growth characteristics of Korean native black goats. The Jangsu and Tongyoung strains were shown to have black hair, while the Dangjin strain was shown to have black or dark brown long hair. Only the Tongyeong strain was found to have no wattle and one goat each from the females and males of the Dangjin strain was found to have no horns. The lengths of the ears and tails were similar for the female and male goats, while the lengths of horns and beards were longer in the male goats. The birth weight was 2 kg on average, with that of male goats tending to be slightly heavier than that of the females. Weights at the weaning period were found to be slightly heavier for the males. Also, at 12 months, the weights of the male goats by strain were shown to be heavier than that of the females. The body length and depth by strain were found to be higher for the male goats, while no differences in the chest width and girth between the strains or gender were found. These findings are expected to be used as a basis for differentiating between native and crossbred Korean black goat strains and for improving Korean native black goats.

Several Treatments of Veronica rotunda Nakai for Pot Cultivation (분화 재배를 위한 둥근산꼬리풀의 몇 가지 처리)

  • Yeon, Soo Ho;Lee, Sang In;Lee, Seung Yeon;Lee, Cheol Hee
    • Proceedings of the Plant Resources Society of Korea Conference
    • /
    • 2019.04a
    • /
    • pp.89-89
    • /
    • 2019
  • 둥근산꼬리풀(Veronica rotunda Nakai)은 다년생 초본으로 높은산 정상에서 자라며, 초장은 10~20 cm, 잎의 길이는 2~4 cm 정도이다. 또한, 기부의 잎은 엽병이 불분명하고, 줄기에는 털이 없는 것으로 알려져 있다. 관상소재로 이용되고 있으나, 식물정보는 매우 부족하며, 활용하기 위해서는 재배 연구와 식물에 대한 정보 수집이 필요하다. 이에 본 연구는 둥근산꼬리풀의 관상용 재배 시 적정 차광, 기비, 추비, 왜화제 및 적심 등의 처리 정도를 알아보고자 수행하였다. 재배방법의 확립을 위하여 선행연구에서 육묘한 유묘(2018년 5월 15일에 파종하여 생산)를 7월 16일에 정식하여 10월 15일까지 약 14주 동안 재배하였다. 공통조건은 플라스틱 화분 10호(이색포트, $9{\times}9cm$)에 원예상토를 충진하고, 200구 트레이에 셀 당 4립씩 파종하여 생산된 1셀을 정식하였다. 차광 정도 실험은 0, 55, 75% 차광막을 이용하였으며, 기비는 싱싱코트를 0, 10, 20알 처리하였고, 추비는 hyponex (N:P:K, 4:6:6)를 0, 1000, $2000mg{\cdot}L-1$의 농도로 엽면시비 하였다. 또한, 관상효과 증가를 위해 왜화제는 diniconazole, daminozide를 농도별(각 0, 1000, $2000mg{\cdot}L-1$)로 처리하였고, 적심은 4주차에 1회 처리 유무의 효과를 비교하였다. 연구의 결과, 둥근산꼬리풀에 기비 10알 처리는 생육에 유의적인 차이는 보이지 않았으나, 20알 처리는 무처리와 10알 처리에 비해 절간장, 경직경이 증가하는 결과가 나타났다. 추비는 절간장을 증가시켰으나, 측지수와 마디수는 유의적으로 감소시켰다. 차광처리별로는 55, 75% 차광 모두 무차광에 비해 측지수, 마디수, 엽수 및 개화율을 크게 감소시키는 결과를 보여, 둥근산꼬리풀는 광이 충분한 곳에서 재배하는 것이 적합한 것으로 생각된다. 왜화제의 처리는 종류와 농도에 관계없이 둥근산꼬리풀은 측지수, 마디수, 엽수를 감소시키는 결과를 보였다. 또한 초장이 짧아지고 경직경은 두꺼워졌으나, 유의적인 차이는 없었다. 종류별로는 daminozide $2000mg{\cdot}L-1$ 처리는 무처리에 비해 개화율이 증가하여, 둥근산꼬리풀의 분화용 재배시 daminozide $2000mg{\cdot}L-1$를 처리하는 것이 효과적이다. 적심처리는 무처리에 비해 전반적인 생육 및 개화를 억제하는 결과가 나타났다. 결론적으로 둥근산꼬리풀의 분화용 재배시 광량이 충분한 곳에서 재배하고, 기비와 추비는 절간장을 증가시키며, 측지수, 마디수, 엽수에 큰 차이가 없거나 감소하는 결과를 보여 관상용 재배에 적합하지 않은 것으로 판단된다. 추가적으로 daminozide $2000mg{\cdot}L-1$를 처리하며, 적심처리를 하지 않는 것이 좋을 것으로 생각된다.

  • PDF

A Study on Animal Skin Irritation Measurement of Ozoneized Olive Oil for Cosmetic Ingredients (화장품원료를 위한 오존화 올리브오일의 동물 피부자극 측정에 관한 연구)

  • Kim, Ducksool
    • Journal of the Institute of Convergence Signal Processing
    • /
    • v.22 no.1
    • /
    • pp.14-19
    • /
    • 2021
  • This study has attempted to use ozone for the treatment of skin diseases as research results that ozonated olive oil has an excellent therapeutic effect on skin diseases are known. However, there is hardly any accurate data in Korea. Usually, animal tests related to cosmetics are not performed, but toxicity tests were conducted because they were absolutely necessary. In general, there are not many cases of measuring actual data through animal tests for the purpose of confirming the performance of cosmetics, but in the case of toxicity tests, it is recommended to accurately measure skin reactions, so this experiment was conducted. In this experiment, in order to evaluate the skin irritation of ozonated oil (high concentration) on the rabbit, the test substance was applied to the back of the rabbit for 24 hours, and then mortality, general symptoms and skin irritation were evaluated. Experimental Results As a result of evaluating the treatment site of the test substance after a certain period of time, no skin irritation was observed in all animals.