• Title/Summary/Keyword: 자연경과

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Spawning Behavior and Early Life History of Takifugu pardalis (Teleostei: Tetraodontidae) in Korea (졸복, Takifugu pardalis (Temminck et Schlegel)의 산란습성 및 초기생활사)

  • Han, Kyeong-Ho;Cho, Jae-Kwon;Lee, Sung-Hun;Hwang, Dong-Sik;Yoo, Dong-Jae
    • Korean Journal of Ichthyology
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    • v.13 no.3
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    • pp.181-189
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    • 2001
  • Spawning behavior of the Takifugu pardarlis (Temminck et Schlegel) was observed on the Jook-do coast in Tongyong from March 1997 to June 1999. The spawning ground was locted in the intertidal zone between Tongyong and Koje-do. Its bottom was mainly gravels and stones, and its depth was 0.5~1.0 m. Spawning season was from the end of the March to the middle of May. During the spawning season, the mature fishes formed school a of 10~30 individuals, then moved to the spawning ground together. When a mature female spawned eggs, the attendant males fertilized them at the same time. The fertilized eggs obtained from the parent fishes caught at the spawning ground were adhesive, opaque and spherical, measuring 1.14~1.24 mm (mean 1.19 mm, n = 50) in diameter with numerous tiny oil globules. Hatching period was about 205 hours after fertilization at water temperature of $18.0{\pm}0.5^{\circ}C$. The newly hatched larvae were 2.92~3.10 mm (mean 3.01 mm, n = 20) in total length (TL), had a large yolk, and 11~13+14~15 = 25~28 myomeres. At 5 days, the larvae had attained 3.79~3.85 mm (mean 3.82 mm, n = 20) in TL and had transformed into the postlarval stage. At 15 days, the postlarvae had attained 7.78~7.90 mm (mean 7.84 mm, n = 20) in TL. At 21 days, had larvae attained 10.15~10.27 mm (mean 10.21 mm, n = 20) in TL and had reached the juvenile stage. All fins were formed with a complete set of fin rays having the following counts: dorsal fin rays 11~12; anal fin rays 9; pectoral fin rays 14~15; caudal fin rays 11~12.

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Histiocytic necrotizing lymphadenitis in children : association of human herpes virus 8 and Epstein Barr virus (소아에서의 조직구성 괴사성 림프절염 : human herpesvirus 8과 Epstein Barr virus와의 연관성)

  • Kim, Hyun A;Chung, Ju-Young;Kim, Sang Woo;Lim, Sung Jig;Shin, Haeng Seop
    • Clinical and Experimental Pediatrics
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    • v.49 no.8
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    • pp.875-881
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    • 2006
  • Purpose : The aims of this study were to analyze the clinical characteristics of children with Kikuchi's disease(KD) at a medical center and to investigate the etiologic role of human herpesvirus 8(HHV 8) or Epstein-Barr virus(EBV) in children with KD. Methods : Twenty six children who were diagnosed as KD between Jan. 1998 and Dec. 2005 were included. Medical records were reviewed on the clinical characteristics of children with KD. Follow up data were collected by chart review and telephone contact. Polymerase chain reaction(PCR) was performed in order to detect HHV 8 DNA, and in situ hybridization(ISH) was perfomed in order to detect EBV RNA from 20 lymph node tissues. Results : There were 15 girls and 11 boys with a mean age of 13 years. Posterior cervical lymph nodes were involved in 72 percent(18/25) of the patients. Extracervical lymphadenopathy was associated in one patient. Fever was an associated symptom in 31 percent(8/26) of the patients. Leukopenia was observed in six (46 percent) patients. The cervical lymphadenopathy usually resolved spontaneously within 6 months. Only one patient had a recurrence of lymphadenopathy with fever during follow-up. No children with KD in our series developed systemic lupus erythematosus. HHV 8 DNA was not amplified by nested PCR in any of the cases, and all cases were negative for EBV RNA by ISH. Conclusion : KD should be differentiated as a cause of cervical lymphadenopathy in children. HHV 8 and EBV may not play major causative roles in KD in children.

2 Cases of Malignant Changed Laryngeal Papilloma (악성변화를 일으킨 후두유두종 3례)

  • 이종담;고한진;고의경
    • Proceedings of the KOR-BRONCHOESO Conference
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    • 1982.05a
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    • pp.6.1-6
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    • 1982
  • Papilloma is the common benign tumor of the larynx and the incidence of its malignant change was variable. The authors recently experienced 2 cases of squamous cell carcinoma of the larynx which were considered to be transformed from laryngeal papilloma. Case 1. A 58 year old male patient visited O.P.D. of Department of Otolaryngology of Busan National University Hospital, because of hoarseness for 3 years on May 13th, 1980. At that time, local finding of indirect laryngoscopy revealed whitish hypertrophic papillomatous mass on both vocal cords and anterior commissure, and dirty gray white pseudomembrane on left aryepiglottic fold, and the result of biopsy was squamous cell papilloma. So the laryngeal papilloma was removed under suspension laryngoscopy and then he had no specific treatment in spite of being recommended 5-FU topical spray. On March 5th, 1981, he visited O.P.D. again because of progressive exacerbation of hoarseness with mild dyspnea and histopathological finding was revealed squamous cell carcinoma of the larynx. Seven days later from that day, he visited emergency room due to severe dyspnea, and emergency tracheostomy was performed on sitting position. On April 7th 1981, total laryngectomy was performed successfully and postoperative irradiation therapy was recommended. Case 2. A 47 year old male patient visited our O.P.D. because of hoarseness for 5 years on Sep. 27, 1978. At that time, local finding of indirect laryngoscopy revealed papillomatous mass on left vocal cord and left ventricle and result of biopsy was squamous cell papilloma. So he had been treated with 11 times removal of papilloma, topical spray of 5-Fu and estrogen for 3 years, but the papilloma had been recurred. On Sep. 9th, 1981, he visited O.P.D. because of severe dyspnea and emergency tracheostomy and biopsy was performed. The result of biopsy was squamous cell carcinoma of larynx and total laryngectomy was performed successfully.

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Purification of Water Contaminated with Synthetic Detergent by a Wild Strain of Oenanthe javanica (미나리에 의한 합성세제에 오염된 물의 정화효과)

  • 김종규
    • Journal of Food Hygiene and Safety
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    • v.17 no.1
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    • pp.1-7
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    • 2002
  • This study was performed to investigate the possibility of water purification by a wild train of Oenanthe javanica DC. Three commercially available dishwashing detergents and a standard surfactant, linear alkylbenzene sulfonate (LAS), were used for this study. The experiment was done in 1.5 ι transluscent aquariums. The plants were distributed into various concentrations of detergents and various kinds of detergent in the separate aquariums. The wet weight of the plants was significantly decreased (p<0.05), and the visual vitality of the plants also decreased in 2 days. The higher the concentration of detergent was, and the more time the plants were exposed to the detergents, the more decrease of growth was observed. The pH value of the culture media decreased in 2 days and in 4 days, then slightly increased in 6 days. However, the pH value of the media did not return to the initial neutral level of pH in 6 days. The pH value of the culture media containing the LAS remarkably increased in 6 days and increased to a neutral pH value in 18 days (p<0.01) as the pH of the other culture media. The chemical oxygen demand (COD) of the culture media gradually increased over the 4 days. A decrease of COD was observed in 6 days, but no tendency was observed between 12 and 18 days. The detergent in the culture media was highly significantly decreased in 2 days (p<0.01) and gradually decreased after this. After 6 days the remaining detergent was 12.4∼23.7% from the various levels of initially added concentration, and 22.4 ∼34.2% from the flour kinds of detergents. These results show that the reduction of detergent was caused by Oenanthe javanica and the effect was significant during the first 6 days when the plants were still growing well. These results indicate that the plant purifies contaminated water for several days and the effect could be variable according to the level of contamination and the environment in which the plant grows.

Effects of Cnidium officinale Makino and Tabanus bovinus in a CAM and Rat Corneal anti-angiogenesis (장요막과 흰쥐 각막에서의 신생혈관 억제를 위한 약재(Cnidium officinale Makino와 Tabanus bovinus) 효과 규명)

  • Han, Sun Hee;Kim, Dae Nyoun
    • Journal of Korean Ophthalmic Optics Society
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    • v.7 no.1
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    • pp.39-43
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    • 2002
  • This study was investigated the anti-angiogenic activities of Cnidium officinale Makino and Tabanus bovinus by using Chorioallantoic membrane (CAM) and rat cornea. First experiment, the fertilized chicken eggs were kept in a humidified egg incubator at $37^{\circ}C$. After 4 days incubation, about 3 ml of albumin was aspirated from eggs with an hypodermic needles through a small hole drilled at the narrow end of the eggs, and the shell membrane on the floor of the air sac was peeled away. Embryos with chorioallantois of 3~5 mm in diameter were employed for the assay of antiangiogenic activity. Retinoic acid was used as a positive control for this experiment. After 48 h of treatment. branching pattern of blood vessels below coverslip containing retinoic acid ($10{\mu}g/egg$) was dramatically decreased. A simiar angiogenic inhibition was observed in the CAM treated with $50{\mu}g/egg$ of Cnidium omcinale Makino and Tabanus bovinus extracts. Second experiment, rat corneal neovascularization was induced by suturing (one stitch) the cornea with 10-0 nylon, and terramycin was applied on the cornea for I week to prevent corneal inflammation. In the cornea of rats untreated with herbal extracts, numerous vessels were usually seen invading the cornea by day 2 or 3 after suture, and reaching the lesion area within 5~6 days. Corneal neovascularization was gradually increased and peaked at 3 weeks. In contrast to this, herbal extracts conspicuously inhibited the angiogenesis, Oral administration of herbal extracts (20 mg/kg body weight/day) for 4 weeks significantly inhibited the rat corneal angiogenesis induced by suture, and the length of blood vessels in herbal medicine-treated rat cornea was conspicuously lower than that in control animals. A similar phenomenon was also observed in the rat cornea treated with thalidomide (200 mg/kg body weight/day). These findings indicate the anti-angiogenic properties of Cnidium officinale Makino and Tabanus bovinus, suggesting that these properties may be one of the pharmacological mechanisms underlying the anti-tumor and anti-metastatic activities of herbal extracts tested in this study.

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Physicochemical Characteristics of Fermented Pig Manure Compost and Cow Manure Compost by Pelletizing (펠렛 가공처리에 따른 돈분 발효퇴비와 우분 발효퇴비의 물리화학적 특성)

  • Jeong, Kwang Hwa;Park, Chi Ho;Choi, Dong Yun;Kwak, Jung Hoon;Yang, Chang Bum;Kang, Ho
    • Journal of the Korea Organic Resources Recycling Association
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    • v.13 no.4
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    • pp.118-127
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    • 2005
  • The best way to treat livestock manure is a recycling the manure to arable land as an organic fertilizer. In this study, fermented cow manure compost and pig manure compost were used as a raw materials for pelletizing. The changes of physicochemical properties of each composts and pellets were investigated. The aim of this research was to improve availability of livestock manure compost. In pelletizing process of fermented livestock manure compost, the optimal water content to make pellet was around 40%. When clay was mixed by volume more than 15% as a bonding agent, the condition of pelletizing process was beginning to improve. On a dry matter basis, the contents of N, P and K of fermented pig manure compost were 2.05%, 1.89% and 1.31%, respectively. After pelletizing, the contents of compost pelleted with the pig manure compost were 1.96% 1.73% and 0.89%, respectively. The same parameters of cow manure compost were 2.52%, 1.01% and 2.98%, respectively. After processing, the contents of compost pelleted with the cow manure compost were 2.45%, 1.10% and 2.93%, respectively. After pelletizing, there were little change in the content of heavy metals such as Pb, Cd, As and Hg. When pelleted compost dried naturally was submerged in water, it was completely dissolved in 30 minutes. On the other hand, Pelleted compost dried with the mechanical convection oven set $70^{\circ}C$ for 24 hours was completely dissolved in 960 minutes. The volume and weight of pelleted compost were decreased with time. After 30 days of storing, the weight of pelleted compost was decreased by 15% compared with its original weight. The volume of it was decreased by 17~25% in the same time.

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Correlation between Clinicomorphologic Findings and Clinical Outcome in Childhood $Henoch-Sch\"{o}nlein$ Purpura Nephritis (소아 $Henoch-Sch\"{o}nlein$ 자반병 신염의 임상양상 및 병리소견과 임상경과)

  • Huh Yun-Jung;Shin Jae-Il;Park Jee-Min;Jeong Hyeon-Joo;Lee Jae-Seung
    • Childhood Kidney Diseases
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    • v.7 no.1
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    • pp.30-37
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    • 2003
  • Purpose : $Henoch-Sch\"{o}nlein$ purpura(HSP) is usually a self-limited disease with a good eventual outcome. The prognosis of HSP is mainly determined by the renal involvement. In this study, We evaluated children with biopsy-proven $Henoch-Sch\"{o}nlein$ purpura nephritis about the clinical outcome correlated with renal manifestation and morphologic findings. Methods : The clinical features, initial laboratory and pathologic findings, and clinical out-come were evaluated in 60 children with biopsy-proven $Henoch-Sch\"{o}nlein$ purpura nephritis at Yonsei University Severance Hospital during the period from Jan. 1990 to Dec. 2002. Results : The ratio of male to female patients was 1.2:1. The interval between the onset of $Henoch-Sch\"{o}nlein$ purpura and renal manifestation was less than 3 months in 81% of the patients. Initial renal manifestation was microscopic hematuria in 100% of patients, isolated hematuria in 15%, acute nephritic syndrome in 7%, nephrotic syndrome In 22% of patients. Renal manifestation correlated with clinical outcome. Grade II and III were the most common in histologic grades of ISKDC. Renal pathologic finding correlated with clinical outcome. Conclusion : Renal manifestation and pathologic findings correlated with the clinical out-come. It is necessary to evaluate the correlation between pathologic findings and treatment.

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Effects of Supplementation of Ruminally Protected Amino Acids on In vitro Ruminal Parameters and Milk Yield and Milk Composition of Dairy Cows in Mid-lactation (보호아미노산의 추가 공급이 반추위 발효성상 및 비유중기 착유우의 유량 및 유성분에 미치는 영향)

  • Lee, Jong-Min;Nam, In-Sik;Ahn, Jong-Ho
    • Journal of Animal Science and Technology
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    • v.50 no.2
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    • pp.199-208
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    • 2008
  • This study was undertaken to investigate the effects of ruminally protected amino acids (Methionine and Lysine) on in vitro ruminal parameters, and in vivo milk yield and milk composition in mid-lactating cows. In the first in vitro experiment, there were no statistical significances between treatments in ruminal pH and dry matter digestibility during various incubation times. In the second in vivo experiment, milk yield decreased by 11.92% in control and 5.68% in the treatment respectively, but decrease rate of milk yield in the treatment was lower than control. Milk yields naturally decreased as time goes by since the DIMs(Days in milk) of the cows in experiment were in mid-lactation period. 4% FCM(Fat corrected milk) and milk protein yields also, respectively, decreased by 11.25% and 11.09% in control and 6.16% and 5.47% in the treatment as compared with the intial. Milk protein and milk fat production were higher in the treatment(0.90kg, 1.10kg) than those of control(0.66kg, 0.79kg). Milk fat content significantly increased with supplementing protected amino acids as compared to control(P<0.05). From the above results, protected amino acids were positively utilized in the performances of mid-lactating cows without inhibiting rumen fermentation. Further investigation is suggested for essential amino acid composition and intestinal digestion rate out of rumen bypass protein in dietary protein to be estimated.

Total Ear Canal Ablation and Lateral Bulla Osteotomy for Chronic Otitis Externa and Media in Dogs: Postoperative Recovery and Long-Term Follow-up (개에서 만성외이염과 중이염에 대한 전이도 적출술과 외측 고포절골술: 수술 후 회복과정과 장기간 예후)

  • Kim, Joon-Young;Jeong, Soon-Wuk;Jeong, Man-Bok;Han, Hyun-Jung;Kim, Je-Sun
    • Journal of Veterinary Clinics
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    • v.20 no.1
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    • pp.26-32
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    • 2003
  • The clinical results of 10 consecutive total ear canal ablation combined with lateral bulla osteotomy (TECA-LBO) in six dogs with chronic otitis externa and media were evaluated by the postoperative recovery and long-term follow-up. All dogs were selected for TECA-LBO on the basis of following five clinical symptoms. First, medical treatment couldnt improve clinical signs at least for eve. 2 months. Second, tympanic membrane was completely disappeared. Third, radiopacity was increased in tympanic cavity. Forth, petrous temporal bone was sclerosed. Fifth, ear canal calcification was progressed. And all cases were satisfied all five clinical symptoms. At 14. days after operation, the preoperative symptoms of chronic otitis externa and media which were scratching ear, pain, and hardening ear canal were resolved, and postoperative swelling, erythema, head tilt, and exudate from Penrose drainage were not existed In all cases. Loss of eye blink was happened in 4 cases, but these were disappeared between 14 days a(ter operation except one case on 3 months. All dogs were discharged form hospital at 14 days after operation. Between 3.5 and 6.5 months after discharging from hospital, para-aural abscessation was happened only in all Cocker spaniels. But this complication was solved by ventral bulla osteotomy (VBO). The dogs which didn't show para-aural abscessation after TECA-LBO didn't show scratching, pain, hardening of ear and hearing ability was improved, at 7.5 months after TECA-LBO. And the dogs which showed para-aural abscessation after TECA-LBO also didn't show scratching, pain, hardening of ear and hearing ability was also improved, at 7.5 months after VBO. In conclusion, After TECA-LBO, all dogs were recovered well without complication within 2 weeks except Cocker spaniel. And loss of eye blink can be cured naturally within 2 weeks after surgery. And para-aural abscessation can be happened between 4 and 7 months after TECA-LBO, so surgeon must follow-up until 8 months.

A Comparison of Body Shape Changes Between Deep Tissue Massage and Illite-Combined Deep Tissue Massage - Focusing on women in their 30s - (딥티슈마사지와 일라이트병행 딥티슈마사지의 체형변화 비교 -30대 여성을 대상으로-)

  • Jeong, In-Sun;Park, Jeong-Yeon
    • Journal of Korea Entertainment Industry Association
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    • v.14 no.6
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    • pp.279-287
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    • 2020
  • This study aims to put forth an efficient way of improving body shapes by examining the effects of deep tissue massage and illite-combined deep tissue massage on body shape changes, and identifying body shape changes when applying each method. This study targeted twenty women in their thirties, and ten separate subjects were placed in different groups. Then deep tissue massage and illite-combined deep tissue massage were performed once a week, for a total of eight weeks. Moire Topography was applied before the experiments, four weeks later and eight weeks later to compare changes in spinous process inclination, shoulders and hips. The data collected were analyzed using SPSS v. 21.0, and the study results are as follows. In relation to general characteristics of the subjects, professionals occupied the highest proportion of them, and 90% of them were married. Here, 77.8% of them had experience in giving birth, and 78.6% of them chose natural birth. In addition, 57.1% of the subjects holding a majority had two children. When measuring spinous process inclination, shoulders and hips in the illite-combined deep tissue massage group and in the deep tissue massage group before the experiments, the illite-combined deep tissue massage group showed somewhat higher values in every area than the deep tissue massage group, but no statistically significant differences were not found, which means the homogeneity existed between them. When comparing body shape changes between the two massage methods, there were significant differences(p<.05, p<.01), because the illite-combined deep tissue massage group showed a much higher decline in spinous process inclination, shoulders and hips than the deep tissue massage group. This implies illite-combined deep tissue massage was more effective in improving body shapes than deep tissue massage. Therefore, illite-combined deep tissue massage is considered to be helpful in improving body shapes, and it is anticipated that this massage method can be used in relevant fields, including the skin care industry.