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親和性 및 非親和性菌系의 混合 및 前後接種이 벼 稻熱病의 病斑擴大에 미치는 影響
朴瑞基,金基淸 한국응용곤충학회 1983 한국응용곤충학회지 Vol.22 No.4
Effect on blast lesion development was investigated in rice cultivar Milyang 23 and Jinheung using two races of Pyricularia oryzae compatible or incompatible to each of two rice cultivars. Discase lesions were measured in rice when inoculated with inoculum mixed with compatible and incompatible races, inoculated with a compatible race following with an incompatible race and vice versa. Lesions were smaller when rice was incoulated with an incompatible race and then inoculated with a compatible race than those inoculated in the reverse way both at the inoculated site and at 3cm-upper part from inoculated spot. The results suggested that induced resistance might play a role in suppression of lesion development although such an effect appeared to be influenced by heavy application of nitrogen fertilizer.
박서완,정성운,이형렬,Park, Seo-Wan,Jeong, Seong-Un,Lee, Hyeong-Ryeol 대한흉부심장혈관외과학회 1996 Journal of Chest Surgery (J Chest Surg) Vol.29 No.9
기저세포양 편평세포암(basaloid squamous carcinoma)은 상부 기도소화기계에 발생하는 드문, 악성도가 높은 암종으로 침습성 편평세포암(invasive squamous carcinoma)이나 상피내암(carcinoma in situ) 형태의 편평상피암종성분과 밀접하게 혼재되어 있는 기저세포앞종성분(basaloid component)으로 특징 지워질 수 있다. 이런 조직학적 특성에도 불구하고 식도의 선양 낭성암(adenoid cystic carcinoma)이나 선양 낭성 분화를 보이는 암종(carcinoma with adenoid cystic differentiation)과 혼동되어 왔으나, 순수 선양 낭성암은 악성도가 기저세포양 편평세포암보다 낮아감별 진단이 중요하다. 기저세포양편평세포암의 임상적 경과는 식도의 편평세포암과 유사하다. 본 병원에서는 60세 남자의 식도 중간 113 부위에 발생한 기저세포양 편굉세포암을 수술치험하였다. Basalold squamous carcinoma (BSC) is a rare, aggressive neoplasm of the upper aerodigestive tract or esophagus. It is characterized by a biphasic pattern in which basaloid tumor is intimately associated with a neoplastic squamous component which can be either Invasive r in situ. Despite its characteristic histologic appearance, the BSC of the esophagus has been confused with esophageal neoplasm variously reported as adenoid cystic carcinoma or carcinoma with adenoid cystic differentiation Their distinction is important because genuine adenoid cystic carcinoma is much less as- gressive than BSC. The biologic course of BSC is similar to that of the more frequent squamous cell carcinoma of the esophagus. We have experienced a case of BSC of the esophagus in a 60-year-old male patient. The lesion was located in the middle third of the esophagus. The patient was treated with surgery followed by radio- therapy.
박서아 한국외식산업학회 2012 한국외식산업학회지 Vol.8 No.3
he customer complaint behavior has received significant attention from restaurant managers, because a variety of complaint actions that could damage the reputation of a restaurant. The purposes of this research were to identify complaint patterns and the relationships between customersʼ demographic backgrounds such as age, gender and education levels; and their complaint behaviors. Based on a survey of 200 restaurant customers in North Miami area, complainers and non-complainers were identified. The study results show that most customers are likely to engage in private complaint behaviors such as word-of-mouth communication and stop to visit the restaurant again. Also, the study results indicate that Customer complaint behaviors effect by demographic factors.
차나무의 병해 IV. Glomerella cingulata에 의한 차 붉은잎마름병
박서기(Seur-Kee Park),최용수(Yong-Soo Choi),차광홍(Kwang-Hong Cha) 한국차학회 1998 한국차학회지 Vol.4 No.1
Brown blight of tea(Camellia sinensis(L.) Kuntze) was observed at tea plantations of Boseung, Chonnam Province in 1992-1994. Circular to irregular spots appeared on margins and insides of mature leaves, and then black dot-like acervuli were radially formed on the lesions. The casual fungus of brown blight was identified as Glomerella cingulata(Stonem) Spaulding & Schrenk. Symptoms by G. cingulata appeared on injured leaves after ca 10 days and on intact leaves ca 25 days after artificial inoculation.
알로에 베라 꽃 추출물의 페놀 성분 분석 및 항산화 효과
박서현,이영민,김인숙,이정민,권소희,임병우 한국약용작물학회 2018 한국약용작물학술대회 발표집 Vol.2018 No.05
Background : The aloe has been reported to have significant therapeutic effects, such as inhibition of cancer cells' activation and proliferation as well as anti-inflammatory, anti-viral, and anti-oxidation properties. However, the phytochemicals analysis and antioxidant activity of the Aloe vera flower extracts have not been widely investigated. In this regard, we investigated the phytochemical profiles and antioxidant activity of ethanol extracts of the Aloe barbadensis flower in hydrogen peroxide-treated BALB/c mice. Methods and Results : This research highlights the phenolic constituents' profile and antioxidant activity of 70% ethanol extracts of Aloe vera flower for the first time. The ethanol-based extracts showed the inhibition for linoleic acid oxidation and free radical-induced DNA damage. Among about 11 phenolic constituents of the extract, identified by using high performance liquid chromatography (HPLC), the content of vanillic acid was highest, corresponding to strong antioxidant activities of the extract. The extracts elevated superoxide dismutase, catalase, and glutathione peroxidase enzymes activities in the liver tissue of hydrogen peroxide-treated BALB/c mice. The radical-scavenging activities of the extracts were well-correlated to the total phenolic content. Conclusion : In conclusion, Aloe bardadensis flower might be an effective source of natural antioxidant with high level of phenolic constituents.
Thioacetamide 유도 간독성 랫드 모델에서 맥문동 추출물의 간 보호 효과
박서인,설희진,이승제,조현정,진병호,이서연,황석연 대전대학교 기초과학연구소 2021 自然科學 Vol.32 No.-
Liver disease is caused by alcohol, stress and bad eating habits. Liver function protective agents are available on the market. but there are side effects from excessive intake and long-term use. To overcome this, studies on natural substances related to liver function protection are needed. The test material was dried lily extract and extracted under reduced pressure with 50 % ethanol. To evaluate the hepatoprotective effect of the ethanol extract of Liripoe platyphylla oral administration of the test substance was performed once a day for a total of 14 days. To induce hepatotoxicity, a single intraperitoneal administration of 250 mg/kg of thioacetamide was administered to SD-Rat. In the evaluation of body weight and diet of the experimental group compared with the normal control group, the weight gain rate (%) was decreased in all groups administered with thioacetamide. From the result of blood liver function tests AST, ALT, LDH, and Total-Bilirubin, the TAA alone group showed a significant increase compared to the normal control group, positive control group and experimental group showed a decrease compared to the TAA alone group. According to the result of histological evaluation of the liver, significant (p<0.05) level of inflammation was found in nuclear enrichment and cytoplasmic vacuolization. Liripoe platyphylla ethanol extract is judged to be a valuable natural product for liver damage protection.
한국판 긍정적 평가에 대한 두려움 척도(K-FPES) 타당화
박서정,오강섭,이정애 한국임상심리학회 2010 Korean Journal of Clinical Psychology Vol.29 No.1
Cognitive-behavioral models propose that fear of negative evaluation is the core feature of social anxiety disorder. However, it may be that fear of evaluation in general is important in social anxiety, including fears of positive as well as negative evaluation. The FPES (The Fear of Positive Evaluation Scale) was developed to test this hypothesis. The study aimed to examine the psychometric properties of the Korean version of the FPES (K-FPES) and to demonstrate its clinical efficacy. In Study 1, the results of an exploratory factor analysis of a sample of controls (n=136) showed a single-factor structure. In Study 2, we evaluated the model using confirmatory factor analysis on a sample composed of the undergraduates (n=222). Finally, we examined the instrument's reliability and construct validity. In Study 3, the K-FPES showed good diagnostic accuracy, as assessed through ROC analyses (AUC= .80). We discuss the K-FPES's implications regarding the study and treatment of social anxiety disorder.