• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.39 no.4
• /
• pp.338-343
• /
• 2006

Histological observations of the barbels of torrent catfish (Amblycipitidae) in Korea are reported. The bullhead torrent catfish (Liobagrus andersoni) and Korean torrent catfish (L. obesus) have eight obvious barbels in two pairs each on the maxilla and mandible. Each barbel is composed of an epidermis, dermis, and central cartilagerod. The epidermis of the maxillary and mandibular barbels of the bullhead torrent catfish is thicker than that of the Korean torrent catfish (P<0.05) and is formed of stratified epithelium that contains many cutaneous taste buds and a few small club cells. There are many taste buds on the upper part of each barbel. The dermis consists of loose connective tissue fibers that enclose blood vessels and bundles of nerve fibers. The barbels of these fish can be categorized into stiff and flexible types and are accessory, feeding, and sensory structures. Our results validate the barbels as gustatory receptor organs for these fishes.

• Journal of the Speleological Society of Korea
• /
• no.89
• /
• pp.1-15
• /
• 2008

In this study, the inhabitant were investigated at the six sites in the cave which is located in Giwha-ri, Mitan-myen, Pyeong Chang-gun from January to June in 2005. As the result of observation, collection, researching, It was confirmed as all animals species were classified by 19 species, 4 classes, 11 orders, 16 families. Among the investigated animals, Diestrammena asynamora Adelung distributed 66.6% and Antrokoreana gracilipes Verhoeff distributed 22.4%. They were confirmed as a dominant species. Among the observed animals, Troglobite with ecological characteristics was 5.3%, troglophiles were 21.1% and trogloxenes were 73.7%. Among them, There were the largest number of species in trogloxenes. In the class manmalia, Rhinolphus ferrumequinum korai Kuroda and two Myolis daubentoni ussuriensis Ognev's species were observed. Among them Rhinolphus ferrumequinum korai Kuroda distributed 58.9%, so they were confirmed as a dominant species. The largest number of Triphosa dubitata Linnaeus, trogloxenes, were observed in January and February in winter. 503 individual of Antrokoreana gracilipes Verhoeffs, troglobites, were observed only in June. Diestrammena asynamora Adelung, troglophiles, appeared the large number of species in sping, especially, in April and May.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.38 no.4
• /
• pp.232-238
• /
• 2005

This paper describes reproduction, population structure, growth and size at sexual maturity of a deep-water mud shrimp (Solenocera melantho) in the adjacent waters of Geomun Island, Korea. The shrimp was caught by a beam trawl from November 1998 to December 1999. Spawning period was estimated by gonadosomatic index to be from August to early November with a peak in October to early November. Female shrimps were $12\%$ matured at 16 mm in carapace length, $33\%$ matured at 18 mm and $75\%$ matured at 22 mm. The size at $50\%$ maturity for female was estimated to be 20.65 mm in carapace length. Breeding season was estimated to be from August to early November with a peak in October to early November. The size at $50\%$ inseminated was 19.81 mm CL. The fecundity was 87,500-405,200 and related exponentially to carapace length and total weight. This species survived between 25 and 26 months. The maximum carapace length of females and males were 48 mm and 34 mm respectively. Sex ratio was $51.3\%$, and the females were preponderant. Growth was estimated by modified von Bertalanffy growth function incorporating seasonal variation in growth in both years females (K=1.019/yr and $L_{\infty}$=51.731 mm CL) grew faster, reaching a larger size at a given age than males (K=1.848/yr, and $L_{\infty}$=27.499 mm CL). This is indicated by differences in growth performance indices $(\varphi')$ between females (3.291) and males (3.145).

• Journal of Korean Society of Forest Science
• /
• v.102 no.3
• /
• pp.338-344
• /
• 2013

The study was conducted to set up the criteria of judgement that could be utilized for cultivated wild ginseng, easy and well-defined for consumers to understand. For the purpose, the study examined consumers' perception and valuation on each attribute of cultivated wild ginseng that was related to the product quality through a choice experiment. Attributes used in the experiment were based on exterior characteristics of cultivated wild ginseng including ages, planting methods, external dimension, length of fibrous roots, and hue and color. Residents in Seoul and Gyeonggi Province were interviewed and a total of 173 questionnaires were acquired for the analysis. According to the result, respondents valued the highest score on ginseng grown by direct sowing, while they valued rather lower scores on ginseng's external dimension. In general, the hypothetical model was shown to exist within the stable range.

• Journal of Korean Society of Forest Science
• /
• v.89 no.5
• /
• pp.609-617
• /
• 2000

To inverstigate the boring insects in Pinus densiflora forests, bait logs were set up in healthy-looking forests of Chunchon Hongchon and in damaged forests(gall formation rate 70----) by Thecodiplosis japonensis of Pyongchang Jeongsun. The period of investigation was from April to August in 1999. Boring insects investigated were 35 species of 12 families. Five species of them were unrecorded species from Korea. Natural enemies investigated were 5 species of 2 families. The prefered parts of tree according to species of boring insects were lower trunk in Siphalinus gigas and 3 other species, middle-stem in Monochamus sutor and 7 other species, and top stem in Orthotomicus suturalis and 1 other species. Hylurgops interstitialis were found in all parts of tree. Sap wood was attacked by Xyleborus validus Cerambycidae, heart wood by Hylobitelus haroldi Siphalinus gigas, and cambium region by Pissodes nitidus P. obscurus Shirahoshizo insidiosus Scolytidae.

• Korean Journal of Ichthyology
• /
• v.10 no.1
• /
• pp.11-23
• /
• 1998

A total of 64 fish species was collected by an otter trawl in the coastal water off Namhae Island from May 1989 to April 1990. The dominant species were Acentrogobius pflaumii, Chaeturichthys hexanema, Chaeturichthys sciistius, Thryssa kammalensis, and Repomucenus valenciennei which accounted for approximately 66.5% of the total numbers and 34.5% of biomass of fish collected. Fish collected in the study area were primarily small fish species or early juverniles of large fish species. Only about 15%, exceeded 10cm in standard length. Seasonal variations in both species composition and abundance of fishes were major characteristics in the study area. The peak abundance occurred in April and September, while the number of species was relatively high from October to January. However, both the number of species and abundance of fishes showed the lowest values in winter.

• Korean journal of applied entomology
• /
• v.39 no.2
• /
• pp.59-71
• /
• 2000

The Asian ladybird, Harmonia axyridis, might be distinguished in biological control agents for the several aphid species in the greenhouses as well as in the fields. Therefore, feeding behavior and predacious capability characteristics were observed. When ladybirds are searching for aphids as their preys, they use the maxillary palpus as contact reception. Otherwise, most of aphids escape from walking or chewing ladybird to other place (mainly move to near-by leaf, or fall down to the under-leaf or ground) instead of plant sucking. Consumed time of ladybirds for searching and feeding prey were significantly different and dependent on their development stage. The ladybird adults ate about 120 green peach aphids and 257 cotton aphids per day. The 3rd instar of ladybirds ate 2,420 and 2,750 eggs of greenhouse whitefly on the cucumber and tomato leaf, respectively, as well. However, ladybird instars taken greenhouse whitefly eggs could not continuously develope to adult, on the other hand, ladybirds taken aphids were normal condition.

• Journal of Korean Society of Forest Science
• /
• v.95 no.3
• /
• pp.240-249
• /
• 2006

Recently, dispersion of damaged forest by pine wilt disease has been regarded as a serious social issue. Damages by pine wilt disease have been spreaded by natural area expansion of the vectors in the damaged area, while the national wide damage spread has induced by human-involved carrying infected trees out of damaged area. In this study, damaged trees were detected and located on the digital map by aerial photograph and terrestrial surveys. The spatial distribution pattern of damaged trees, and the relationship of spatial distribution of damaged trees and some geomorphological factors were geostatistically analysed. Finally, we maked natural spread pattern map of pine wilt disease using geostatistical CART(Classification and Regression Trees) model. This study verified that geostatistical analysis and CART model are useful tools for understanding spatial distribution and natural spread pattern of pine wilt diseases.

• The Journal of Internal Korean Medicine
• /
• v.38 no.5
• /
• pp.658-667
• /
• 2017

Objectives: This is a case report regarding the effect of Korean traditional medicine on vision disorder and quadriplegia in a patient with neuromyelitis optica. Methods: We treated a patient who was diagnosed with neuromyelitis optica with Korean traditional medicine, including acupuncture, moxibustion, and herbal medicine (Gigugyanghyeol-tang gamibang) for 106 days. We evaluated the patient with the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI), Modified Barthel Index (MBI), Modified Ashworth Scale (MAS) Grade, and Numeric Rating Scale-11 (NRS-11). Results: After treatment, the patient's symptoms were improved. The ISNCSCI scores increased from 42 to 66 in motor score, from 152 to 196 in sensory score, and from A to D in the ASIA impairment scale; the MBI score increased from 9 to 33, while the score of the MAS Grade decreased from I+ to I, and the NRS-11 scores of vision disorder, spasticity, and tingling decreased from 10 to 7, 3, and 2-3, respectively. Conclusions: Korean traditional medicine may be effective for treatment of vision disorder and quadriplegia in patients with neuromyelitis optica.

• Fashion & Textile Research Journal
• /
• v.12 no.1
• /
• pp.21-30
• /
• 2010

The purpose of this study is to research the symbolistic values of western beards' style in the twentieth century. Namely, it is to consider the relationship between social-cultural factors and aesthetic meanings of western beards' style. The contents are, firstly, studying the conception and the types of beard. A beard is the hair that grows on a person's chin, cheeks, neck, and the area above the upper lip. At the World Beard & Moustache Championships, there are moustache category (natural, english, hungarian, dali, fu manchu, freestyle), beard category (natural, musketeer, goatee, sideburns, freestyle), and full beard category (natural, garibaldi, verdi, van dyck, freestyle), Secondly, this paper is continued by researching the history of beard from the ancient to the present day, and thirdly, analyzing political dictatorship, social resistance and expression of personality, religious dignity, related with the change of world situation, the formation of postmodern anti-culture and pop-culture, and the coexistence of traditional culture. There are long and bushy full beards in some religions like Hinduism, Judaism and Islam. The meanings of their beards are purity, life and holiness. The beards of some politicians symbolize dictatorship. Namely, the chaplin of Hitler, the moustache of Hussein and the musketeer of Castro express strong power and charisma. In 1950s'-70s' subcultures, Hipsters' goatee, Bikers' horseshoe, Beat generations' goatee and Hippies' natural represent the lack of adaptability and social resistance. Also, the celebrities and artists like Ronald Colman, Clark Gable, Don Johnson, George Clooney, and Salvador Dali express freedom, personality, and taste with beards. For that matter, the symbolistic values of beards' style in the twentieth century are the religious dignity, the political dictatorship, the social resistance and the expression of personality. Today the beards' style is one of fashion items as well as a symbol of masculinity, customs and classes.