• 보존과학연구
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• 통권21호
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• pp.5-55
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• 2000

The cultural properties are damaged by various causes according to the characteristics of material, the condition of preservation, and the period of time. Especially, biodeterioration makes lots of damages in organic properties than inorganic ones. The damages of wooden cultural properties by insects usually are caused by the three orders; Isoptera, Coleoptera, and Hymenoptera. As the result of investigation on the state of 141 buildings of wooden cultural properties in 1999, some of them were damaged by many kinds off actors; wasp, powder post beetle, cigarette beetle, termite, decay, and physical cracking. And it was found that the patterns of damages were related to species-specific habits of insects. There are several methods of pest control for the prevention of wooden cultural properties from damages caused by insects. Those are as follows; physical control, chemical control, biological control, and integrated pest management. When insects and fungi were detected at the wooden buildings, the fumigation is best treatment to stop biodeterioration. And then, wood materials also need to be treated with insecticidal and antiseptic chemicals to avoid a reinfestation, because the fumigant is volatile. The six commercial chemicals which are applied to the insecticidal and antiseptic treatment of wooden cultural properties were purchased to test their abilities. According to the comparative results of efficacy of them in laboratory, chemical D showed excellent efficacy in all items, including antiseptic and termiticidal items. The goal of these pest controls is to protect wooden buildings from insects and microorganisms. The most effective method used currently is chemical control(fumigation, insecticidal and anticeptic chemical treatment), but it has to be treated periodically to control pest effectively. Recently environmentally-friendly control methods such as bait system or biological treatments are replacing traditional barrier treatments using large amounts of chemicals. Especially, termite is a social insect which makes a colony. Although a building with fumigation treatment is safe for a while, once attacked building has a risk of damage by reinfestation of termite. Therefore, to control termites from damaged building, the entire colony including reproductives(queen and king) and larvae around buildings must beeliminated. Bait system can be used as a preventive measure in early detection of them through termites colony monitoring and baiting. It would be the most effective for termite control if bait system would be used together with the chemical controls.

• 한국치위생학회지
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• 제5권2호
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• pp.219-233
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• 2005

This study was conducted on 185 workers at 73 dental clinics and university hospitals in Daegu to investigate the actual prevention of infection and vaccination against B-type hepatitis among dental workers. 1. According to the result of medical examination, only 35 out of 144 (24%) dental clinic workers had periodic health examination while 7 out of 9 (78%) university hospital workers did. 2. In a survey on vaccination against B-type hepatitis, 52 workers aged 29 or younger (96.3%), 38 dental hygienists (51.9%) and 44 dental workers at dental clinics (81.5%) have not had any vaccination against B-type hepatitis. The rest appeared to have had vaccination or be aware that they had antibody against B-type hepatitis without having to have any vaccination. 3. According to the result of a survey on the existence of antibody by job, 42 (56%) of dental hygienists, 15 (20%) of assistant nurses, 12 (16%) of medical assistants and 6 (8%) of dental technicians did not know whether or not they had antibody. This suggests that all types of dental workers except dental hygienists have low awareness of whether or not they have antibody. 4. In a survey on the relation between general characteristics of subjects and the sterilization of dental equipment, alcohol disinfection of high speed handpiece and low speed handpiece was most common among dental workers aged 29 or younger, and all of those aged over 40 used autoclave. By position, alcohol disinfection was used most commonly for high-speed handpiece. antiseptic solution deposition for disposable suction lips, and autoclaving for impression. By workplace, dental workers at university hospitals used autoc1aving most frequently for high/low speed handpiece while those at dental hospitals and dental clinics used alcohol disinfection most frequently and even some respondents replied that they did not disinfect. For metal cups, workers at dental clinics and dental hospitals did not use any sterilizing method while those at university hospitals used autoclaving. For disposable suction tips, workers at dental clinics used antiseptic solution deposition and those at dental hospitals used alcohol disinfection but some respondents replied that they did not disinfect. For metal suctions and impression trays, autoclaving was most common in all workplaces but some dental clinics replied that they did not disinfect impression trays. According to work experience, alcohol disinfection was most common for high/low speed handpiece. For disposable suction tips, dental workers with 3 years' or shorter work experience, those with 3~6 years' experience and those with 9~12 years' experience used antiseptic solution deposition most commonly, and many of those with 6~9 years replied that they did not disinfect. The results of this study stated above suggest that systematic education is necessary for all dental workers for enhancing th eir awareness of B-type hepatitis and the prevention of infection. Moreover, dental workers are required to make efforts to prevent infection with B-type hepatitis voluntarily and actively.

• 한국융합학회논문지
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• 제10권9호
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• pp.69-74
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• 2019

본 연구에 목적은 손세정제, 손소독제, 일회용 위생물티슈를 이용하여 손 위생용품간의 세균 제거 효과를 교차 실험설계를 통해 비교하는 융복합 연구를 진행 하였다. 연구를 위해 30명의 연구참여자를 무작위 배정하여 세 개의 군으로 나누어 총 89개의 샘플에 대한 실험을 진행하였고 세균의 증식능력을 CFU로 측정하였다. 손 위생 전 손 위생용품을 사용하였을 때의 세균 감소값은 손세정제 사용 후에서 $-0.45({\pm}0.69)\;{\log}\;CFU/ml$, 알코올 손 소독제를 이용한 경우 $-1.19({\pm}0.52)\;{\log}\;CFU/ml$, 일회용 물티슈를 이용한 경우 $-0.75({\pm}0.58)\;{\log}\;CFU/ml$로 대조군과 비교하여 실험군에서 낮게 나타났다. 연구결과 손세정제를 사용하였을 때 사용하지 않은 경우보다 세균제거능력이 효과적인 것을 확인할 수 있었으며, 알코올 소독제 사용이 살균효과가 가장 우수한 것으로 나타났다. 그러므로 경제적이고 손쉽게 사용이 가능한 알코올 손소독제를 공공시설에 비치하는 것이 감염병을 예방에 가장 효과적일 것으로 사료된다.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2001년도 추계학술발표대회
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• pp.796-797
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• 2001

The $Ag^{2+}$ solution was constructed by supplying pure metal silver in filtrated distilled with constant voltage. The solution at the $Ag^{2+}$ concentration of 10 ppm showed specific activity against Gram positive and negative bacteria. More than 90% activity showed against Candida albicans ATCC 102321 at the same concentration. The addition of DASA, $Ag^{2+}$ and artemisia mixture, in the EVLN had same activity by comparison with chemical synthetic antiseptic.

• 한국생명과학회:학술대회논문집
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• 한국생명과학회 2005년도 제45회 학술심포지움 및 추계학술대회
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• pp.106-106
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• 2005

• Journal of Chest Surgery
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• 제28권5호
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• pp.504-506
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• 1995

Postpneumonectomy empyema is an infrequent but dreaded complication. The seriousness of this complication is impossible to eliminate the space containing the infection, and consequently, it is difficult to sterilize the space. The time from pneumonectomy to the development of an empyema ranges from several days to several years, with most evident with 4 weeks. We experienced a case of postpneumonectomy empyema that occurred 27 1/2 years after initial pneumonectomy. She was treated with intrapleural antiseptic irrigation and open-tube drainage following partial decortication. The patient had an uneventful recovery and was discharged from hospital with improved condition.

• Journal of Chest Surgery
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• 제8권1호
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• pp.9-12
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• 1975

Four patients with postpneumonectomy empyema were treated successfully by modification of Clagett`procedure. Their primary diseases were chronic bronchiectasis, empyema with bronchopleural fisula, pulmonary tuberculosis, and pyohemothorax. The time interval between 1st and 2nd operation was 26.5 months in average. The pleural space was irrigated with various kinds of antiseptic solutions for 23.3 days in average and debrided, filled with antibiotic saline solution. After the procedure, patients had no recurrences of empyema and discharged from hospital after brief days. (averages: 15.5 days)

• 한국잠사학회:학술대회논문집
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• 한국잠사학회 2005년도 제48회 추계 학술연구 발표회
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• pp.45-45
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• 2005

• 약학회지
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• 제43권6호
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• pp.789-792
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• 1999

The complete nucleotide sequence of pKH4, a small multidrug resistance (smr) plasmid isolated from multidrug resistant Staphylococcus aureus SA5, was determined. Sequence analysis has revealed that pKH4 has two open reading frames for Rep and Smr proteins. The comparison of the amino acid sequence of Smr protein of pKH4 with those of other Smr proteins of various Staphylococcus showed that Smr protein of pKH4 is a new member of the SMR family.

• Journal of Microbiology and Biotechnology
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• 제27권12호
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• pp.2211-2220
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• 2017

Chlorhexidine gluconate (CHX) and benzalkonium chloride (BZK) formulations are frequently used as antiseptics in healthcare and consumer products. Burkholderia cepacia complex (BCC) contamination of pharmaceutical products could be due to the use of contaminated water in the manufacturing process, over-diluted antiseptic solutions in the product, and the use of outdated products, which in turn reduces the antimicrobial activity of CHX and BZK. To establish a "afe use" period following opening containers of CHX and BZK, we measured the antimicrobial effects of CHX ($2-10{\mu}g/ml$) and BZK ($10-50{\mu}g/ml$) at sublethal concentrations on six strains of Burkholderia cenocepacia using chemical and microbiological assays. CHX (2, 4, and $10{\mu}g/ml$) and BZK (10, 20, and $50{\mu}g/ml$) stored for 42 days at $23^{\circ}C$ showed almost the same concentration and toxicity compared with freshly prepared CHX and BZK on B. cenocepacia strains. When $5{\mu}g/ml$ CHX and $20{\mu}g/ml$ BZK were spiked to six B. cenocepacia strains with different inoculum sizes ($10^0-10^5CFU/ml$), their toxic effects were not changed for 28 days. B. cenocepacia strains in diluted CHX and BZK were detectable at concentrations up to $10^2CFU/ml$ after incubation for 28 days at $23^{\circ}C$. Although abiotic and biotic changes in the toxicity of both antiseptics were not observed, our results indicate that B. cenocepacia strains could remain viable in CHX and BZK for 28 days, which in turn, indicates the importance of control measures to monitor BCC contamination in pharmaceutical products.