• Title/Summary/Keyword: resistance management

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Analysis of Varietal Difference and Genetic Diversity of Grapevine Cultivarsthrough the Leaf Inoculation of Colletotrichum spp. (포도 탄저병균의 엽면접종을 통한 국내 육성 포도나무의 품종 간 저항성 검정 및 유전적 다양성 분석)

  • Jang, Hyun A;Lee, Kyo-Sang;Oo, May Moe;Kwak, Tae-Seok;Yoon, Ha-Yeon;Thinn, Khaing Shwe Zin;Kim, Mi-Reu;Kim, Dae-Gyu;Lee, Jeong Jin;Lim, Gi Taek;Hur, Youn Young;Oh, Sang-Keun
    • Journal of agriculture & life science
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    • v.52 no.6
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    • pp.49-60
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    • 2018
  • Here, we reported 159 varieties of major cultivars using grapevine genetic resources to identify the resistant grape ripe rot cultivars. To do this, we performed pathogenicity assays from these grape cultivars by inoculating Colletotrichum acutatum and Colletotrichum gloeosporioides. Genotyping-by-sequencing(GBS) method was also used to compare genetic diversity among grape varieties. As a result, leaves inoculated with C. acutatum showed that 58 cultivars were susceptible, while 17 cultivars were resistant. In the case of C. gloeosporioides, 34 cultivars were found to be susceptible, while 25 cultivars were resistant. The 8 cultivars that showed resistance to both species were 'Agawan', 'Huangguan', 'Xiangfei', and 5 other cultivars from the hybrids of European and American species. Most of the varieties such as 'Emerald Seedless', 'Tano Red', and 'Rem 46-77(Aestivalis GVIT 0970)' originated in European species were identified as susceptible. These results can be used in the effective management of grape disease. In addition, these findings provide information for the development and cultivation of resistant to grape ripe rot disease cultivars.

Development of the Compressed Packer Grouting Device for Preventing the Inflow of Polluted Groundwater (오염지하수 유입방지를 위한 압축패커 그라우팅 장치 개발)

  • Cho, Heuy-Nam;Choi, Sang-Il
    • The Journal of Engineering Geology
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    • v.19 no.4
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    • pp.433-439
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    • 2009
  • The compressed packer device is designed to improve the underground contamination prevention facilities of ground water wells. As for the device, the installation is simple because of the safety lock device and the compression of the casing are simple the installation is simple. There is no leakage of ground water because the pressure resistance with $4.5\;kg/cm^2$ makes it equipped with the watertightness The single casing is installed and the reaming for grouting is possible with 300 mm excavation so that installation cost can be saved. Silicon rubber is used for the compressed packer so that the extension rate is 590%. In terms of environmental pollution, it is an environmental friendly product which does not contain harmful ingredients such as Pb, Cd, and phenol. below the standard or undetectable level Furthermore, the installation costs are 35 to 62% or lower than the conventional grouting construction method and are 87% or lower than the expansion packer construction method, the new environmental technology No.47 Also, the device is designed to meet the relevant regulations such as Rules on Preserving the Ground Water Quality, The Standard on Jeju Island Ground Water Development and Facility Installation and Management, and The Plan and Guideline on Operating and Managing the Small-Scale Tap Water Facilities of Ministry of Environment and Ministry of Food, Agriculture, Forestry and Fisheries.

A Survey on Farm Management and Occurrence Area of Herbicide Resistant Paddy Weeds in Chungbuk Province (충북지역 제초제 저항성 논잡초의 농가 관리실태 및 발생면적 조사)

  • Kim, Eun-Jeong;Park, Jae-Seong;Lee, Chae-Young;Lim, Sang-Cheol;Song, Beom-Heon
    • Weed & Turfgrass Science
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    • v.2 no.1
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    • pp.1-7
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    • 2013
  • Studies were carried out to provide basic information for establishing the weed control in Chungbuk, Korea. The present surveys targeting 260 farmers in Chungbuk province were conducted for the cultivation system, weeds occurrence and usage of herbicides. To estimate the occurring area of herbicide resistant weeds, soil samples from 400 paddy fields were collected twice on August, 2011 and April, 2012. In the results of survey, the 99.6% of farmers used the rice planting machine and the 78% of the farmers disseminated herbicides twice to control weeds before and after planting rice. The most commonly used herbicide were as follows; soil-applied herbicide : butachlor 46.6%, mid-term herbicide : mefenacet + pyrazosulfuron-ethyl 10.7%, foliar herbicides : bentazone 62%. The dominant paddy field weeds included Echinochloa crusgalli (16.2%), Scirpus juncoides (12.2%), Monochoria vaginalis (11.9%) and Sagittaria trifolia (9.5%). Occurrence area of sulfonylurea herbicide resistant weeds was 13,659 ha in 26.8% of the paddy area. Monochoria vaginalis showed the highest with 4,605 ha (36.4%) followed Scirpus juncoides (30.7%), and Lindernia dubia (10.6%) at 2011. Monochoria vaginalis and Scirpus juncoides occurred were evenly distributed and the most problematic weed in Chungbuk, Korea.

Building practical treatment protocol by comparing the effect of adjustment between Thompson Terminal Technique and Exercise in malpositioned pelvic which induces imbalance of body (골반변위에 따른 신체 불균형에 대한 톰슨터미널테크닉과 운동요법의 교정 효과비교분석을 통한 임상치료프로토콜의 구성)

  • Park, Joon-Ki;Choi, Eun-Seok;Kim, Min-Jung;Lee, Man-Su;Lee, Min-Sun
    • Journal of Digital Convergence
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    • v.14 no.5
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    • pp.445-457
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    • 2016
  • The purpose of the study is to provide frame work of efficient diagnostic and treatment protocol for the people with malpositioned pelvic which causes imbalance of body. Study subjects were grouped as experimental, comparison and control group. Each group consisted of five men and five women randomly assigned. Experimental group was to be tested with Thompson Terminal Technique, its corrective effect and the effect of maintaining the treatment. There were 43.01%p difference in effectiveness of the applied technique between Thompson Terminal Technique and Muscle Energy Technique. It indicates that Thompson Terminal Technique is more effective in treating pelvic misalignment than Muscle Energy Technique. As a result, the use of chiropractic and resistance exercises is proven to be effective for treating the imbalance of body. Also, to maximize the effect of treatment, it is preferable to apply Muscle Energy Technique after applying the Thompson Terminal Technique.

Public Health Risks: Chemical and Antibiotic Residues - Review -

  • Lee, M.H.;Lee, H.J.;Ryu, P.D.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.3
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    • pp.402-413
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    • 2001
  • Food safety is a term broadly applied to food quality that may adversely affect human health. These include zoonotic diseases and acute and chronic effects of ingesting natural and human-made xenobiotics. There are two major areas of concern over the presence of residues of antibiotics in animal-derived foodstuffs with regard to human health. The first is allergic reactions. Some antibiotics, such as penicillins can evoke allergic reactions even though small amounts of them are ingested or exposed by parenteral routes. The second is development of antibiotic resistance in gut bacteria of human. Recently multi-resistant pneumococcal, glycopeptide-resistant enterococci and gram negative bacteria with extended-spectrum $\beta$-lactamases have spread all over the world, and are now a serious therapeutic problem in human. Although it is evident that drugs are required in the efficient production of meat, milk and eggs, their indiscriminate use should never be substituted for hygienic management of farm. Drug should be used only when they are required. In addition to veterinary drugs, environmental contaminants that were contaminated in feed, water and air can make residues in animal products. Mycotoxins, heavy metals, pesticides, herbicides and other chemicals derived from industries can be harmful both to animal and human health. Most of organic contaminants, such as dioxin, PCBs and DDT, and metals are persistent in environment and biological organisms and can be accumulated in fat and hard tissues. Some of them are suspected to have endocrine disrupting, carcinogenic, teratogenic, immunodepressive and nervous effects. The governmental agencies concerned make efforts to prevent residue problems; approval of drugs including withdrawal times of each preparation of drugs, establishment of tolerances, guidelines regarding drug use and sanitation enforcement of livestock products. National residue program is conducted to audit the status of the chemical residues in foods. Recently HACCP has been introduced to promote food safety from farm to table by reducing hazardous biological, chemical and physical factors. Animal Production Food Safety Program, Quality Assurance Programs, Food Animal Residue Avoidance Databank are para- or non-governmental activities ensuring food safety. This topic will cover classification and usage or sources of chemical residues, their adverse effects, and chemical residue status of some countries. Issues are expanded to residue detection methodologies, toxicological and pharmacokinetic backgrounds of MRL and withdrawal time establishments, and the importance of non-governmental activities with regard to reducing chemical residues in food.

The Effects of Convergent Stimulation on tDCS during Mirror Therapy to Improve the Muscle Strength and Gait Ability in Chronic Stroke Patients (만성 뇌졸중 환자에서 거울 치료 시 tDCS의 융합 자극이 다리근력 및 보행능력에 미치는 효과)

  • Lee, Seung-Tae;Kim, Kyung-Yoon
    • Journal of Industrial Convergence
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    • v.18 no.4
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    • pp.51-59
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    • 2020
  • The purpose of this study was to investigate the improvement of muscle strength and gait ability of paralyzed lower extremity through convergent stimulation of tDCS(transcranial direct current stimulation) during mirror therapy with resistance exercise in chronic stroke patients. 12 patients with stroke were randomly assigned and divided into groupI(n=6) and groupII(n=6). GroupI provided NDT(neurodevelopmental treatment) and mirror therapy with sham tDCS, and groupII provided NDT and mirror therapy with tDCS. Each convergent stimulation was conducted 5 times a week, 30 minutes per session for a total of 4 weeks. All evaluation was conducted before intervention and performed after 4 weeks. Lower extremity strength showed a significant improvement in groupII compared to groupI(p<.05), and in comparison between groups by variance, significant difference in the quadriceps(p<.01) and tibialis anterior(p<.01). Gait ability showed a significant improvement in both groupI(p<.05) and groupII(p<.05), and significant difference in comparison between groups by variance(p<.01). In conclusion, mirror therapy with tDCS convergent stimulation had a positive improvement effect on paralyzed lower extremity to strength and gait ability through the overlapping interaction.

Molecular Subtyping of Methicillin-Resistant Staphylococcus aureus Isolated from Patients' Nasal Cavity (환자의 비강으로부터 분리된 메티실린 내성 황색 포도알균의 분자 아형 분석)

  • Kim, Sang-Ha;Park, Sung-Bae;Park, Heechul;Kim, Jun Seong;Kim, Jungho;Lee, Jiyoung;Lim, Jaewon;Kim, Young Kwon;Kim, Sunghyun
    • Korean Journal of Clinical Laboratory Science
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    • v.52 no.2
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    • pp.128-135
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    • 2020
  • Methicillin-resistant Staphylococcus aureus (MRSA) is a bacterium that causes infections in different parts of the body and causes skin and soft tissue infections (SSTI). The present study examined the antimicrobial resistance patterns and molecular epidemiological characteristics of MRSA isolated from nasal swabs in clinical patients. SCCmec type of MRSA isolates from clinical patients were analyzed: 24 cases were SCCmec type-II; two cases were type-II/IVa; one case was type-II/V; one case was type-IVa; 11 cases were not-typeable. The mec complex type of MRSA isolates from clinical patients were analyzed: 29 cases were mec complex type A, and 10 cases were not-typeable, but type B was not found in the present study. In conclusion, SCCmec type-II and mec complex type A were the most dominant MRSA subtypes among the MRSA isolates from a nasal swab of patients, and the results were similar to other studies on hospital-acquired MRSA (HA-MRSA). These results can not only provide basic data for hospital infection management but also be a good guideline for MRSA infections in the Republic of Korea.

Conflict resolution and political tasks on the usage of beauty care devices by beauty artists (미용업종사자의 미용기기 사용에 대한 분쟁해결과 정책적 과제)

  • Kim, Ju-Ri
    • Journal of Arbitration Studies
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    • v.27 no.2
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    • pp.83-105
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    • 2017
  • In contemporary society interest in and consumption of beauty treatment are increasing, raising interest in health and beauty. However, beauty-related laws are becoming factors of hindrance of beauty development. Currently the Public Health Control Act plays a basic role in the beauty art business in Korea, However the contents are in discord with international laws and its definition is not clear. Therefore it is causing conflicts of different occupations and job associations which are similar to art business. Especially, because neither definitions nor policies on beauty care devices exist in the Public Health Control Act, beauty care devices using in foreign countries cannot be used in Korea due to classification as medical devices. Under this circumstance, therefore, beauty care device uses by beauty artists violate the law. The government has tried to solve these irrational regulations. Recently, the Small and Medium Business Administration announced 'the improvement plan of small business and young founders site regulation for public economy recovery' in a ministerial meeting on December 28, 2016. Regulations on policy preparation for skincare devices were inclusive in this announcement. It is the question whether the regulations will be executed or not. Even though beauty industrial competitiveness was presented in the 18th Presidential Council on National Competitiveness in 2009, it was not practiced. The proposal bills for beauty law improvement have been put forth several times since 2000 including an improvement plan for regulating beauty care devices. However, so far there have been no improvements. The damage on the regulation classifying beauty devices as medical devices is not only restricted to skincare. This develops beauty devices and the beauty industry which imports and exports beauty devices. When beauty devices are exported, complicated procedures are unavoidable and when beauty devices are imported, irrational problems like reregistration procedures and costs occur. The reason why an improvement plan has not gone into practice is the resistance of the dermatologists' association. Dermatologists tend to stand positively against harming public health by saying that beauty devices used by beauty artists cause people to suffer side effects. In contrast, anyone who has a licence to use beauty devices is able to use them in foreign countries. It is not only infringement of one's right as a beauty artist but also people's right to receive beauty care services. With this reason, Korean's current law under which beauty devices are ruled as medical devices should be revised with accordance to domestic surroundings. Therefore in order to advance and globalize the beauty industry, the support and cooperation of the Korean government and relevant associations is needed to legislate and revise the beauty devices laws. The relevant associations abandon regional self-centeredness and cooperate to define ranges, size and management of beauty devices for safe use. If no collaboration exists, an arbitration agency should be established to solve the problem.

Non-surgical orthodontic treatment of malocclusion with cleft lip and palate (구순구개열을 동반한 부정교합의 비외과적 교정치료)

  • Lee Seung-Ho;Jeon Young-Mi;Kim Jong-Ghee
    • Korean Journal of Cleft Lip And Palate
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    • v.2 no.1_2
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    • pp.29-41
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    • 1999
  • Cleft lip and palate is the most frequent congenital facial deformity of the orofacial area. Successful management of patients with cleft lip / palate requires a multidiciplinary approach from birth to adult stage. Coordinated treatment by the cleft palate team is an essential requirement to obtain optimum treatment results. One of the negative effect of the early surgical interventions of lip and palate is a significant incidence of maxillary growth restriction that produces secondary deformities of the jaws and malocclusion that includes congenital missing of lateral incisor, malformed teeth, rotation or ectopic position of upper anterior teeth, and it has been thought due to the resistance of palatal scar tissue. In Orthodontic treatment for cleft lip / palate patients, expansion of upper dental arch or palatal suture is often needed to correct posterior and/or anterior cross bite and align upper teeth. Various appliances such as hyrax, quad-helix, fan-type expansion screw and jointed-fan type expander can be used for palatal expansion. In the orthodontic treatment of the cleft lip / palate patient, we must consider patient age and severity of palatal constriction for proper appliance selection, and must pay special attention to maintain the treatment results.

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Disease Management in Road Trees and Pepper Plants by Foliar Application of Bacillus spp. (Bacillus spp. 엽면살포에 의한 가로수 및 고추의 병 방제)

  • Chung, Joon-hui;Ryu, Choong-Min
    • Research in Plant Disease
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    • v.22 no.2
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    • pp.81-93
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    • 2016
  • Out of plant-associated bacteria, certain plant growth-promoting bacteria (PGPB) have been reported to increase plant growth and productivity and to elicit induced resistance against plant pathogens. In this study, our objective was to broaden the range of applications of leaf-colonizing PGPB for foliar parts of road tress and pepper. Total 1,056 isolates of endospore-forming bacteria from tree phylloplanes were collected and evaluated for the enzymatic activities including protease, lipase, and chitinase and antifungal capacities against two fungal pathogens, Colletotrichum graminicola and Botrytis cinerea. Fourteen isolates classified as members of the bacilli group displayed the capacity to colonize pepper leaves after spraying inoculation. Three strains, 5B6, 8D4, and 8G12, and the mixtures were employed to evaluate growth promotion, yield increase and defence responses under field condition. Additionally, foliar application of bacterial preparation was applied to the road tress in Yuseong, Daejeon, South Korea, resulted in increase of chlorophyll contents and leaf thickness, compared with non-treated control. The foliar application of microbial preparation reduced brown shot-hole disease of Prunus serrulata L. and advanced leaf abscission in Ginkgo biloba L. Collectively, our results suggest that leaf-colonizing bacteria provide potential microbial agents to increase the performance of woody plants such as tree and pepper through spray application.