• Journal of fish pathology
• /
• v.11 no.2
• /
• pp.119-127
• /
• 1998

Two species of the parasitc copepods, Clavellopsis hugu (Lemaeopodidae; Siphonostomatoida) and Taeniacanthus yamagutii (Taeniacanthidae; Poecilostomatoida) from cultured Korean fish, Takifugu obscurus, is described and reported for the first time in Korea. The parasite was recovered from the buccal cavity, nose and skin. Clavellopsis hugu is easily identified by the body shape, 2nd antenna, mandible and 2nd maxillae. In female, cephalothorax flexed dorsally, second antenna biramose, mandible with serrate blade, second maxillae completely fused at base of cephalothorax. In male, cephalothorax and trunk fused into an ovoid, two pairs of maxillipeds chelate. The most distinctive features of Taeniacanthus yamagutii are terminal process of second maxilla stout, maxilliped claw with conspicuous digitiform process at base and a setiform element at the tip of each exopod spine of legs 2-4. Both parasitic copepod species are new to the Korean fauna. The korean fish, Takifugu obscurus should be considered as an additional host of this species because these parasite were recovered from the western coast of Korea (Boryung Hatchery).

• The Korean Journal of Community Living Science
• /
• v.17 no.2
• /
• pp.89-103
• /
• 2006

This study was performed to provide sources of nutrition education for female adolescents by identifying eating disorder patterns and their relationships with self-body image, weight control, and eating behavior. A total of 329 female middle school students were recruited and completed a general characteristics survey, the Eating Attitudes Test(EAT-26), a perception of self-body image survey, a concern for weight control survey, an eating behavior survey, and the Mini Dietary Assessment Index(MDA). Eating disorder patterns were identified to be obesity stress and weight control(OW), risk of binge eating(RB), and dietary restraint(DR) by factor analysis. OW pattern was related with stout body shape, body dissatisfaction, experience of weight control, skipping of dinner, and low MDA score. RB pattern was associated with lean body shape, body satisfaction, indiscreet snack behavior, and the eating time of snacks. The DR pattern was associated with normal body shape, regular meal times, desirable snack behavior, and high MDA scores. The results indicated that the eating patterns of adolescent were not identical to existing diagnostic categories. Furthermore, each eating pattern displayed different characteristics of perception on self-body image, concern for weight control, and eating behavior. In conclusion, nutrition education for female middle school students could reflect the different characteristics of each eating disorder pattern.

• School Mathematics
• /
• v.10 no.2
• /
• pp.259-277
• /
• 2008

Conventional assessments only provide a single summary score that indicates the overall performance level or achievement level of a student in a single learning area. For assessments to be more effective, test should provide useful diagnostic information in addition to single overall scores. Cognitive diagnosis modeling provides useful information by estimating individual knowledge states by assessing whether an examinee has mastered specific attributes measured by the test(Embretson, 1990; DiBello, Stout, & Rousses, 1995; Tatsuoka, 1995). Attributes are skills or cognitive processes that are required to perform correctly on a particular item. By the results of this study, students, parents, and teachers would be able to see where a student stands with respect to mastering the attributes. Such information could be used to guide the learner and teacher toward areas requiring more study. By being able to assess where they stand in regard to the attributes that compose an item, students can plan a more effective learning path to be desired proficiency levels. It would be very helpful to the examinee if score reports can provide the scale scores as well as the skill profiles. While the scale scores are believed to provide students' math ability by reporting only one score point, the skill profiles can offer a skill level of strong, weak or mixed for each student for each skill.

• Proceedings of the Korean Society of Applied Pharmacology
• /
• 1998.11a
• /
• pp.178-178
• /
• 1998

We reported that the hexane fraction of Torilis Fructus have an anti-inflammatory and analgesic effect. Therefore, in order to isolate the active compound, the hexan fraction of Torilis Fructus was chromatographed on silica gel column. The subfraction of hexane fraction was crystallized as colorless stout needles. The chemical structure of this compound was verified to be torilin through m.p., UV, IR, GC-MS, and NMR spectral data. In pharmacological tests, torilin exhibited strong anticarrageenan activity at the dose of 90 and 270 mg/kg, p.o. in rats, and it had inhibitory effect on the vascular permeability at the dose of 30 and 90 mg/kg, p.o. in mice. Torilin showed potent inhibition of leucocyte emigration in CMC-pouch at the dose of 3 and 9 mg/rat, s.c. Torilin have the analgesic effect at the dose of 30, 90 and 270 mg/kg, p.o. in both of the acetic acid- and phenyl-p-benzoquinone-induced writhing syndrome. It also increased the pain threshold at the dose of 30, 90 and 270 mg/kg, p.o. in the tail pressure method and the Randall-Selitto method. Torilin did not show a hypothermic action at the dose of 30 and 90 mg/kg, p.o. in mice. The acute toxicity of torilin was very weak: the LD$\_$50/ value was more than 5000 mg/kg, p.o. and 2000 mg/kg, Lp. in mice. From the above mentioned results, it was suggested that torilin had potent anti-inflammatory and analgesic activities in animals.

• Parasites, Hosts and Diseases
• /
• v.40 no.2
• /
• pp.67-73
• /
• 2002

The present study was performed to observe tegumental ultrastructure of Echinoparyphium recurvatum according to developmental stages. Worms (1, 3, 5 and 15-day old) were recovered from chicks experimentally infected with metacercariae from radix auricularia coreana. One-day old worms were elongated and ventrally concave, and covered with peg-like tegumental spines except the adjacent areas of the head crown and excretory pore. Type I sensory papillae were distributed on the lip of the oral sucker, and grouped ciliated papillae were around the oral sucker. Peg-like tegumental spines were densely distributed on the anterior surface of the ventral sucker level. The ventral sucker had an aspinous tegument and no sensory papillae. Tegumental spines on the posterior surface of the ventral sucker level were sparsely distributed and disappeared posteriorly. In 3 and 5-day old worms, the tegument around the oral sucker was aspinose and wrinkled concentrically. The ventral sucker had a wrinkled tegument and many bulbous papillae. Type I sensory papillae were distributed between the bulbous papillae. Tegumental spines were spade-shaped with a terminal tip. A total of 45 collar spines including 4 end group ones on both ventral corners was alternately arranged in 2 rows. The 15-day old worms were very stout and their tegumental spines were tongue-shaped without a terminal tip, From the above results, it is confirmed that the surface ultrastructure of E. recurvatum was generally similar to that of other echinostomatid flukes. However, some features, i.e., morphological change of tegumental spines and appearence of sensory papillae on the ventral sucker according to development, and number, shape and arrangement of collar spines, were characteristic, which may be of taxonomic and bioecological significance.

• Applied Microscopy
• /
• v.44 no.1
• /
• pp.21-29
• /
• 2014

Retinal glial responses to hypertensive glaucomatous injury were spatiotemporally surveyed. Retinas as a whole or vertical sections were processed for anti-glial fibrillary acidic protein (GFAP), anti-Iba1, anti-nerve growth factor (NGF), and anti-tumor necrosis factor (TNF)-${\alpha}$ immunohistochemistry for confocal microscopic analyses. The optic nerve head of paired controls was processed for electron microscopy. GFAP positive astrocytes appeared in the nerve fiber layer in the glaucomatous and control retinas, changing from fine protoplasmic to stout fibrous parallel to glaucomatous duration. Iba1 positive microglia appeared in both retinas, and enormous reaction appeared at the latest glaucomatous. M$\ddot{u}$ller reaction detected by GFAP reactivity expanded from the end feet to whole profile following to duration in the glaucomatous. NGF reactivity expended from the end feet to the proximal radial processes of the M$\ddot{u}$ller cells in both retinas according to glaucomatous duration. TNF-${\alpha}$ immunoreactivity in the nerve fiber layer was stronger in both the glaucomatous and controls than in the normal, and exceptionally at the latest glaucomatous was even lower than the normal. The astrocytes in the optic nerve head are interconnected with each other via gap junction. These results demonstrate that astrocyte reaction propagates to the contralateral via physical links, and TNF-${\alpha}$ is correlated with NGF production for neuroprotection in response to hypertensive glaucomatous injury.

• Bulletin of the Korean Chemical Society
• /
• v.31 no.6
• /
• pp.1601-1608
• /
• 2010

A scandium(III) porphyrin-based fluoride-selective potentiometric sensor and its application in the analysis of hydrofluoric acid is described. Scandium(III) octaethylporphyrin, an ionophore recently developed for the optical fluoride sensor, was employed as a host molecule for the selective binding with fluoride in the plasticized PVC membrane. Nernstian response for $F^-$ between $10^{-4.6}$ to $10^{-1}$ M was observed at a glycine-phosphate buffer (pH 3.0). The selectivity pattern was observed as $F^-$, salicylate $\gg$ $SCN^-$ > $Cl^-$, $Br^-$, $NO_3{^-}$, $ClO_4{^-}$, which is consistent with the binding constant data measured in the plasticized PVC membrane based on a sandwich membrane method. This highly selective and reversible fluoride-sensitive electrode was employed for the analysis of hydrofluoric acid (HF). A disposable differential-type HF sensor was fabricated on the screen-printed electrode and demonstrated its ability to detect the neutral HF in the acidic solution.

• Journal of Ginseng Research
• /
• v.30 no.4
• /
• pp.188-193
• /
• 2006

We induced the activation of melanocytes in the epidermis of C57BL/6 mice by ultraviolet B (UVB) irradiation and observed the effect of red ginseng (RG) on the formation, and decrease of UVB-induced epidermal mel-anocytes. C57BL/6 mice were irradiated by UVB $80mJ/cm^2$ (0.5 mW/sec) daily for 7 days, and RG was intraperitoneally or topically applied pre- or post-irradiation. For the estimation of change of epidermal melanocytes, light microscopic observation with dihydroxyphenylalanine (DOPA) stain was performed. Split epidermal sheets prepared from the ear of untreated mice exhibited 11-16 $melanocytes/mm^2$, and one week after UV irradiation, the applied areas show an increased number of strongly DOPA-positive melanocytes with stout dendrites. But intraperitoneal or topical treatment with RG before each irradiation interrupted UVB-induced pigmentation and resulted in a marked reduction in the number of epidermal melanocytes as compared to radiation control skin. The number and size of DOPA-positive epidermal mel-anocytes were also significantly decreased in intraperitoneally injected or topically applicated group after irradiation with RG at 3rd and 6th weeks after irradiation. The present study suggests the RG as inhibitor of UVB-induced pigmentation and depigmenting agent.

• Korean Journal of Veterinary Research
• /
• v.42 no.1
• /
• pp.109-113
• /
• 2002

This is the first case report of Stephanurus dentatus infection of a feral pig in Korea. In late April, 2000, a weakened feral pig was caught by blow gun from a very low level mountain near the Gyeongsang National University. We autopsied the feral pig in the laboratory of veterinary anatomy at the College of Veterinary Medicine. A total of 27 adult parasites, 11 females and 16 males, and numerous eggs were observed from the cysts formed in the perirenal tissues and ureters. The average size of males was $25.1{\pm}3.2mm$ long and of the females was $34.2{\pm}2.9mm$. The worms were stout, the females being about 2mm broad, and the internal organs were partly visible through the cuticle. The shape of thin-shelled eggs found in the cysts of perirenal tissues and ureter was ellisoidal and oval, and measured $40{\sim}65{\times}90{\sim}115{\mu}m$. The adult parasites were found in cysts which varied from 0.6 to 4cm in diameter, each cyst usually containing a pair of adult worms embedded in green pus. The ureter was thickened and almost occluded, with consequent hydronephrosis.

• Journal of Korean Academy of Nursing
• /
• v.49 no.2
• /
• pp.215-224
• /
• 2019

Purpose: To investigate the differences in postoperative sore throat and hoarseness by adjustment of endotracheal tube cuff pressure (CP) during nitrous oxide ($N_2O$) and air anesthesia. Methods: A one-equivalent control group pretest-posttest design was used. Data were collected from August 8 to October 19, 2017 and analyzed using the independent t-test and repeated measures ANOVA. Eighty-four participants were enrolled and divided into three groups: 28 in the Control Group (CP adjusted every 30 minutes using $N_2O$), 28 in Experimental Group 1 (CP adjusted every 10 minutes using $N_2O$), and 28 in Experimental Group 2 (non-adjusted CP using air), all of whom underwent urologic, gynecologic, and orthopedic surgeries at the G University hospital. Sore throat was assessed using a numeric rating scale; hoarseness was evaluate using the Stout classification at 1, 6, and 24 hours after surgery. Results: Scores for sore throat and hoarseness were significantly different between the groups at each measurement time, and scores were consistently higher in the control group. During subsequent measurements, sore throat and hoarseness scores were significantly lower at 6 hours. Cuff pressure changed significantly using air anesthesia (${\chi}^2=10.41$, p=.015) up to 2 hours after induction. Severe sore throat and hoarseness was observed for up to 6 hours after surgery. Conclusion: Cuff pressure adjustment at short time intervals would be helpful in reducing postoperative sore throat and hoarseness. Nursing intervention focused on prevention of sore throat and hoarseness should be required up to 6 hours postoperatively in patients undergoing endotracheal intubation.