Repellent efficacy of essential oils and plant extracts against Tribolium castaneum and Plodia interpunctella

Lee Hwa‐Eun,Hong Su Jung,Hasan Najmul,Baek Eun Joo,Kim Jun Tae,Kim Young‐Duk,Park Mi‐Kyung 한국곤충학회 2020 Entomological Research Vol.50 No.9

This study was conducted to investigate the repellent efficacy of essential oils (Origanum vulgare, Pimpinella anisum, and Tanacetum cinerariifolium) and four plant extracts (Agastache rugosa, Capsicum annuum, Citrus reticulata, and Ginkgo biloba) against Tribolium castaneum (adults and larvae) and Plodia interpunctella (larvae). Gas chromatography/mass spectrometry analysis revealed the presence of carvacrol, anethole, and jasmolin I as the predominant constituent in O. vulgare, P. anisum, and T. cinerariifolium, respectively. Furthermore, ethyl hexopyranoside, 9,12‐octadecadienoic acid, cyclopentanol, and 2‐cresol were identified in A. rugosa, C. annuum, C. reticulata, and G. biloba, respectively. The repellent efficacy of each essential oil, plant extract, and the combination of oils was evaluated using a specially designed cylinder trap for 120 h. Among the three oils, O. vulgare and T. cinerariifolium had greatest repellent efficacy against P. interpunctella larvae. T. cinerariifolium exhibited effective repellence against the adults and larvae of T. castaneum. Therefore, O. vulgare (O) and T. cinerariifolium (T) were selected for further investigation of combined effects. Two essential oils were mixed in three different ratios of OT1 (1:3), OT2 (1:1), and OT3 (3:1). The repellent efficacies of OT1 and OT2 against the adults of T. castaneum were significantly greater than that of OT3. OT1 was effective against the larvae of T. castaneum, whereas OT2 was effective against the larvae of P. interpunctella. OT1 enhanced the repellent efficacy by approximately five times against larvae of T. castaneum, compared with that of T. cinerariifolium. Overall, OT1 was selected as the best repellent substance against all the tested insects.

사용자 인식 스마트 홈 미러

최건영,고성화,김종옥,박은서,김완규,백경동,박동규 순천향대학교 부설 산업기술연구소 2021 순천향 산업기술연구소논문집 Vol.27 No.2

The Internet of Things, the core of the Fourth Industrial Revolution, is growing by incorporating various technologies into various fields. Among them, smart home systems that apply IoT technology to home environments are being actively studied. The home hub market, a means of communication for smart homes, is also developing at the same time. As the home hub market develops, security threats are also increasing accordingly. In this paper, 'Smart Home Mirror' is implemented by combining mirror and IoT technologies so that users can use them to communicate with smart home applications and other devices. To meet security issues, users in it are recognized by using face recognition technology and AES between all data communications in it is applied. The proposed device’s usefulness is approved by implementing it in smart home environments.

2003년 국내 중증급성호흡기증후군 진료 현황 및 문제점 분석

이진수,김은실,정문현,백제중,정선화,안주희,최영화,이선희,고철우,김성범,김민자,박승철,기현균,송재훈,최상호,김양수,이상오,조용균,박영훈,정숙인,김연숙,이흥범,손창희,장성희,정희진,김우주 대한감염학회 2004 감염과 화학요법 Vol.36 No.3

목적 : 2002년 말 중국에서 SARS가 발생한 이후 국내에서도 2003년 10월까지 총 3명의 추정환자, 17명의 의심환자가 보고되었다. 향후 추가적인 SARS의 유행이 우려되는 상황에서, 그간의 SARS 환자 진료에 있어서의 실질적인 준비사항, 진료 현황 등에 대한 조사를 통해 문제점을 파악하여, 향후 더 나은 대비가 될 수 있도록 개선점을 제시하고자 하였다. 재료 및 방법 : SARS로 의심되는 환자를 진료 경험이 있는 병원의료진을 대상으로 2003년 10월에 설문조사를 실시하였다. 설문에는 SARS 환자 진료 시의 실질적인 조치, 진료 현황, 병실, 응급실 및 외래에서의 격리 시설과 준비사항, 보건당국의 관리와 지원에 관한 사항을 포함하였다. 결과 : 대상이 되는 22개 병원 중 17개(17/22, 77.2%) 병원이 설문에 응하였다. SARS 환자를 위한 격리실은 응급실, 외래, 일반병실 및 중환자실에서 각각 9개(9/17, 52.9%), 5개(5/17, 29.4%), 15개(15/16, 93.7%), 4개(4/16, 25%) 병원에서 음압처리가 되어있지 않은 일인실 혹은 다인실이 사용되었고, 1개(1/16, 6.3%) 병원에서만 일반병실에서 음압격리실이 운영되었다. 입원환자의 진찰 시 개인보호구의 착용은 거의 모든 의료기관에서 이루어졌다. 보건당국에서 SARS지정병원의 시설 등을 사전에 확인한 곳은 1곳(1/12, 8.3%)이였고, 14개 병원(14/15, 93.3%)에서는 보건당국에 의뢰한 검사결과를 통하 받지 못하였다. 결론 : 의료기관에서 SARS 환자용 격리실뿐만 아니라 기존의 격리실 설비 등이 미흡하였으며, 특히 중환자실 및 외래의 준비가 더욱 부족하였다. 보건당국의 의료기관에 대한 종합적인 지원이 부족하였고, 병원과의 원활한 연계가 잘 이루어지지 않았다. SARS 만이 아닌 격리를 필요로 하는 질환의 적절한 진료를 위해 향후 병원 시설의 정비와 정부차원에서의 보다 구체적이고 실질적인 대책마련이 필요하다. Background : There was an worldwide outbreak of the Severe Acute Respiratory Syndrome (SARS) originated from China in late 2002. During that period three cases of suspected SARS and 17 cases of probable SARS were reported in Korea. With the concerns about the reemergence of SARS-coV transmission, it is important to be prepared for any possibility. So, this study is aimed to analysis the past measures in managing SARS and propose the amendatory plans to improve the preparedness. Materials & Methods : Questionnaires were collected among clinicians with any experience in managing the probable or suspected SARS cases in Oct. 2003. 17 out of 22 hospitals responded to the questionnaire. The contents in the questionnaire were practical activities, personal equipments, response plans, isolation facilities in emergency centers, outpatient clinics, general wards and intensive care units, and relationship with the public health department. Results : The dedicated isolation rooms in emergency centers, outpatient clinics, general wards, and intensive care units were prepared in 9 (9/17, 52.9%), 5 (5/17, 29.4%), 15 (15/16, 93.7%), and 4 (4/16, 25.0%) hospitals, respectively. Except for one hospital that newly made negative pressure room for SARS, single or multi-bed rooms without airborne infection control were used in all the other hospitals. The personal precaution principles were kept quite well in general wards. Before the designation of SARS hospital by the public health department prior evalution to see if the hospital was suitable for managing SARS was conducted in only 1 (1/12, 8.3%) hospital. The results of laboratory diagnosis were reported back in 1 (1/15, 6.6%) hospital. Conclusions : The isolation facilities which can control airborne infection were almost deficient not only for SARS but also for other respiratory transmissible diseases. For the infection control of transmissible diseases including SARS, more investment is needed on medical facilities and comprehensive support from the public health department required.

여대생의 결혼관에 관한 연구

강신미,김욱련,김이화,김현주,백은주 효성여자대학교 가정대학 학도호국단 1985 家政大論集 Vol.4 No.-

In these days, Korea has undergone various changes in every social aspect throughthe process of modernization. Especially in instituional and actual aspects, the family.and marriage have been changed greatly by the rapid urbanization and iudustrializatton,.and these changes have been investigated scientifically. This paper presents marital consciousness and actual behavior of 300 woman collegestudents in Daegu, and was surveyed comparing various parts-the humanities, natural·science and the arts. As for the basic attitude of marriage, they were positive in the need of marriage,,defined marriage as the second starting point of life. Also they put the aim of marriage,on mental value. As for the dating and purity before marriage, 84 percent of respondents assented tothe dating before marriage. And they thought it proper that the duration of datingwas one year to two years. The age of the first dating and the standard of sex moralstore significant. The part of the arts tended to be open, and the part of natural sciencewere conservative. As for the standard of spouse's choice, 84 percent of respondents wanted to have theright of priority they could choose their spouses for themselves. And they thought it·proper that the age of marriage was 25-year-old to 26-year-old, and the gap of maritalage was one year to three years. Ideal spouse's characteristic, home surroundings, and marital harmony were significant. Among various marital conditions, personality tended to to emphasized, and theatmosphere of family and masculine appearance were taken serious. As for a. spouses's job, professor or research occupation was popular. Compared withthe part of the arts, the part of the humanities and natural science were positive inpredicting marital harmony. Among various marital conditions, an only son, the eldest son, and an offspring ofa concubine tended to be evaded. The type of an ideal spouse was companionship.

후천성 면역 결핍증에서의 폐렴구균 감염 부검 1예 : An Autopsy Report

이미숙,우준희,진소영,김종원,최창현,김양수,김은옥,김백남,이동화,류지소 대한감염학회 1996 감염 Vol.28 No.3

28세 남자의 후천성 면역 결핍증 환자에서 S. pneumoniae 폐렴이 합병되어 사망한 1예를 경험하여 부검소견과 함께 보고하는 바이다. Pulmonary infections such as Pneumocystis carinii, cytomegalovirus, and tuberculosis are a major cause of morbidity and mortality in patients with human immunodeficiency virus(HIV) infection. Patients with HIV infection are at increased risk for bacterial pneumonia in addition to opportunistic infection. Although in a primary defect, HIV infection is associated with substantial dysfunction of humoral immunity, which predisposes patients to bacterial infections, particularly with encapsulated organisms, such as Streptococcus pneumoniae. We report a case of 28 year-old Korean male with HIV infection who died of respiratory failure due to pneumococcal pneumonia with autopsy findings.

Protective effect of Panicum dichotomiflorum in a rat model of testosterone-induced benign prostatic hyperplasia

Eun Bok Baek,Suyoung Park,Eun-Ju Hong,Warisraporn Tangchang,Hwa-Young Son,Hyo-Jung Kwon 한국실험동물학회 2021 한국실험동물학회 학술발표대회 논문집 Vol.2021 No.7

Benign prostatic hyperplasia (BPH) is a non-malignant enlargement of the prostate gland, resulted from hyperplastic changes of prostate epithelial and stromal cells and it can be lead to lower urinary tract symptoms. Panicum dichotomiflorum (PD) is an annual grass distributing throughout the world. This study was aimed to evaluate the protective effect of PD extract on benign prostatic hyperplasia (BPH) in a rat model of testosterone-induced BPH. BPH of rat was induced by daily subcutaneous (s.c) administration of testosterone propionate (TP) 3 mg/kg for four weeks. Simultaneously, rats were also administered daily oral gavage of PD (150 mg/kg), finasteride (10 mg/kg) as a positive control or vehicle. After final treatment, all animals were sacrificed humanely and prostates of each animal were isolated, weighed and collected for further analysis. Administration of PD to testosterone-induced BPH rats notably reduced relative prostate weight and concentrations of prostatic dihydrotestosterone (DHT) and serum testosterone. Epithelial thickness and expression of proliferating cell nuclear antigen (PCNA) and cyclin D1 were markedly suppressed by PD treatment. In addition, protein expressions of the B-cell lymphoma 2 (Bcl-2) and cleaved caspase-3 were reduced PD-treated rats. PD decreased the levels of growth factors including transforming growth factor-beta1 (TGF-β1) and vascular endothelial growth factor (VEGF) and protein expression of phospho-Akt. Further investigation showed that PD suppressed testosterone-induced prostatic inflammation and inflammatory cytokines including tumor necrosis factor- α (TNF-α), interleukin (IL)-6 and IL-8. Taken together, PD protects from BPH progression by enhancing apoptosis and inhibiting growth factor signaling and inflammatory cytokines, suggesting that PD has potential to protect from BPH progression accompanied by inflammation.

Molecular and Epidemiological Characterization of Enteroviruses Isolated in Chungnam, Korea from 2005 to 2006

Kyung Ah Baek,Kwi Sung Park,Eun Hye Jung,Eun Hee Chung,Joon Soo Park,Hwa Jung Choi,Seung Hwa Baek,Yong Mee Jee,Doo Sung Cheon,Gwang Sook Ahn 한국미생물 · 생명공학회 2009 Journal of microbiology and biotechnology Vol.19 No.9

Feasibility Study of Synthetic Diffusion-Weighted MRI in Patients with Breast Cancer in Comparison with Conventional Diffusion-Weighted MRI

Choi Bo Hwa,Baek Hye Jin,Ha Ji Young,Ryu Kyeong Hwa,Moon Jin Il,Park Sung Eun,Bae Kyungsoo,Jeon Kyung Nyeo,Jung Eun Jung 대한영상의학회 2020 Korean Journal of Radiology Vol.21 No.9

Objective: To investigate the clinical feasibility of synthetic diffusion-weighted imaging (sDWI) at different b-values in patients with breast cancer by assessing the diagnostic image quality and the quantitative measurements compared with conventional diffusion-weighted imaging (cDWI). Materials and Methods: Fifty patients with breast cancer were assessed using cDWI at b-values of 800 and 1500 s/mm2 (cDWI800 and cDWI1500) and sDWI at b-values of 1000 and 1500 s/mm2 (sDWI1000 and sDWI1500). Qualitative analysis (normal glandular tissue suppression, overall image quality, and lesion conspicuity) was performed using a 4-point Likert-scale for all DWI sets and the cancer detection rate (CDR) was calculated. We also evaluated cancer-to-parenchyma contrast ratios for each DWI set in 45 patients with the lesion identified on any of the DWI sets. Statistical comparisons were performed using Friedman test, one-way analysis of variance, and Cochran’s Q test. Results: All parameters of qualitative analysis, cancer-to-parenchyma contrast ratios, and CDR increased with increasing b-values, regardless of the type of imaging (synthetic or conventional) (p < 0.001). Additionally, sDWI1500 provided better lesion conspicuity than cDWI1500 (3.52 ± 0.92 vs. 3.39 ± 0.90, p < 0.05). Although cDWI1500 showed better normal glandular tissue suppression and overall image quality than sDWI1500 (3.66 ± 0.78 and 3.73 ± 0.62 vs. 3.32 ± 0.90 and 3.35 ± 0.81, respectively; p < 0.05), there was no significant difference in their CDR (90.0%). Cancer-to-parenchyma contrast ratios were greater in sDWI1500 than in cDWI1500 (0.63 ± 0.17 vs. 0.55 ± 0.18, p < 0.001). Conclusion: sDWI1500 can be feasible for evaluating breast cancers in clinical practice. It provides higher tumor conspicuity, better cancer-to-parenchyma contrast ratio, and comparable CDR when compared with cDWI1500.

Review of 100 cases of single port laparoscopic cholecystectomy

Eun Jung Koo,Soon Hwa Youn,Yang Hyun Baek,Young Hoon Roh,Hong Jo Choi,Young Hoon Kim,Ghap Joong Jung 대한외과학회 2012 Annals of Surgical Treatment and Research(ASRT) Vol.82 No.3

Purpose: Single port laparoscopic cholecystectomy (SPLC) is a new advanced technique in laparoscopic surgery. Many laparoscopic surgeons seek to gain skill in this new technique. However, little data has been accumulated and published formally yet. This article reports the achievement of 100 cases of SPLC with the hopes it will encourage laparoscopic surgery centers in the early adoption of SPLC. Methods: A retrospective review of 100 prospectively selected cases of SPLC was carried out. All patients had received elective SPLC by a single surgeon in our center from May 2009 to December 2010. Our review suggests patients’ character, perioperative data and postoperative outcomes. Results: Forty-two men and 58 women with an average age of 45.8 years had received SPLC. Their mean body mass index (BMI) was 23.85 ㎏/㎡. The mean operating time took 76.75 minutes. However, operating time was decreased according to the increase of experience of SPLC cases. Twenty-one cases were converted to multi-port surgery. BMI, age, previous low abdominal surgical history did not seem to affect conversion to multi-port surgery. No cases were converted to open surgery. Mean duration of hospital stay was 2.18 days. Six patients had experienced complications from which they had recovered after conservative treatment. Conclusion: SPLC is a safe and practicable technique. The operating time is moderate and can be reduced with the surgeon’s experience. At first, strict criteria was indicated for SPLC, however, with surgical experience, the criteria and area of SPLC can be broadened. SPLC is occupying a greater domain of conventional laparoscopic cholecystectomy.

L1210 및 P388D_1에 대한 고삼 메탄올 추출물의 세포독성에 관한 연구

백승화,강길웅,최은영 圓光大學校 基礎自然科學硏究所 2000 基礎科學硏究誌 Vol.18 No.1

고삼(Sophora flavescens Ait. S. angustifola S. et Z)뿌리의 메탄올 추출물을 C_18 frash chromatography fraction중 MTT정량분석법으로, 마우스 백혈병 세포인 L1210 및 P388D_1 세포에 대하여 세포독성효과를 평가하였다. 이들 추출물은 마이크로로 그람 농도의 범위에 대하여 세포독성을 나타내었으며, 이들 추출물에 대한 세포독성은 Table 1에 나타난 바와 같이 Fr. 5 추출물이 가장 강한 세포독성을 보였다. 즉 L1210 암세포에 대하여 메탄올 C_18 frash chromatography fraction중 IC_50값은 AM>Fr. 5>Fr. 4>Fr. 10>Fr. 6>Fr. 8>Fr. 2>Fr. 7>Fr. 9>Fr. 3>Fr. 1로 Fr. 5에서 가장 강한 세포독성을 보였으며, P388D_1 암세포에 대한 세포독성은 실험결과에서도 Fr. 5 추출물이 가장 강한 세포독성을 보였으며, 다음과 같은 순서로 세포독성이 감소하였다. MTT정량분석법에 의하면, AM>Fr. 5>Fr. 4>Fr. 6>Fr. 7>Fr. 10>Fr. 8>Fr. 3>Fr. 2>Fr. 1>Fr. 9 정량분석값을 얻을 수 있었다. 결론적으로 고삼 메탄 추출물 C_18 frash chromatography fraction에서, Fr. 5에 마우스의 백혈병 세포인 L1210 및 P388D_1 암세포에 대한 가장 강한 항암활성을 나타내었다. 따라서 Fr. 5 추출물에 보다 항암활성이 높은 화합물이 함유되어 있을 것으로 사료된다. This study was carried out to evaluate cytotoxicity of the extracts from Sophora flavescens Ait. against L1210(lymphocytic leukemia) and P388D_1(lymphoid neoplasma) cells in vitro. We have determined cytotoxicity by MTT{3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazoliumbromide} assay. The order of cytotoxicity of Sophora flavescens Ait. extracts against L1210 and P388D_1 cells in vitro is as follows : AM>Fr. 5>Fr. 4>Fr. 6>Fr. 7>Fr. 10>Fr. 8>Fr. 3>Fr. 2>Fr. 1>Fr. 9 and AM>Fr. 5>Fr. 4>Fr. 10>Fr. 6>Fr. 8>Fr. 2>Fr. 7>Fr. 9>Fr. 3>Fr. 1. These results suggest that fractions of the methanolic extracts of Sophoroa flavescens Ait. may be a valuable choice for the development of antiumor against.