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      • KCI등재

        Effect of climate change on the potential distribution of the common cutworm (Spodoptera litura) in South Korea

        정재민,변대현,정성훈,이왕희 한국곤충학회 2019 Entomological Research Vol.49 No.12

        Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae), known as common cutworm, is a worldwide pest that causes severe damage to various crops and vegetables in South Korea. In this study, we predicted the potential distribution of S. litura in South Korea in a climate change scenario by applying species distribution modeling. We used the CLIMEX software as a main tool and determined optimal parameter values to simulate the current distribution of S. litura inAsia.We then used these parameter values to predict the species’future distribution in South Korea. As a result, we prepared maps indicating areas with suitable climate for S. litura and showed that these areas gradually increased as a result of climate change. Approximately 98% of the areas in South Korea were predicted to have a favorable climate for S. litura in 2100; 63.2% of the area in South Korea is currently favorable. To the best of our knowledge, this is the first study to predict the potential distribution of S. litura in South Korea, and it provides the basic data necessary to establish an optimal control strategy of this species.

      • KCI등재

        한국산 옻나무과의 지리적 천연분포와 종의 특징

        정재민,JaeMinChung 한국자원식물학회 1995 한국자원식물학회지 Vol.8 No.2

        우리나라에 자생하는 옻나무과 수종을 대상으로 석엽표본 조사와 현지답사를 통하여 지리적 분포 현황을 확인하였으며, 자생지서 수한 잎과 화서,열매,동아,줄기를 관찰하여 종의 특징을 조사하였고, 그 결과를 요약하면 다음과 같다. 1. 옻나무는 우리나라 전지역에 재배가 가능하며, 특히 추운지방에서 많은 재배를 하고 있었다. 잎은 개옻나무에 비해 두꺼웠으며, 열매는 황갈색이었다. 2. 개옻나무는 우리나라 남쪽 먼 일부도서지방을 제외한 전지역에 분포하고 있으며, 엽병이 붉고, 열매는 6-7월에 성숙하며 강모가 있는게 특징이었다. 3. 산검양옻나무는 난대지방과 온대남부지방에 폭넓게 분포하며, 우리나라에서는 36$^{\circ}$이남지방의 해안과 제주도를 포함한 도서지방에 주로 분포하고 있었으며, 주맥과 2차맥의 형성각이 70$^{\circ}$이상이었으며, 잎과 엽병에 많은 털이 있어 검양옻나무와 구별되었다. 4. 검양옻나무는 난대수종으로 제주도와 남쪽 일부 도서지방에만 분포하고 있었으며, 제주도에는 큰 군락을 이루고 있었다. 잎은 피침형 내지 장타원형이며 털이 거의 없는게 다른 수종과 구별되었다. 5. 붉나무는 난온대지방에 매우 폭넓게 분포하는 수종으로, 우리나라 전지역에 자생하고 있으며, 해조 800-900m에까지 분포하고, 원추화서는 8-9월에 가지끝에 달리는 것이 특징이었다. 6. 덩굴옻나무는 난대지방에 분포하고 있으며, 우리나라에서는 연천군 광도와 상백도에 천연분포하고 있었으며, 낙엽덩굴성으로 잎은 삼출복엽이고, 질이며 광택이 있고, 뒤로 젖혀지는 특징이 있었다. This study was conducted to clarify not only the phytogeographical distribution but also species characteristics of Korean-native Anacardiaceae. 6 species of I genus were ascertained from herbarium specimens and field survey of natural population. Rhus verniciflua have been mainly cultivated in Wonju region, Kangwon-do and Hamyang region, Kyeongsangnam-do, could be cultivated in all parts of Korea, especially more in cold area. R. trichocarpa was distributed in all parts except for some far-islands of South in Korea. Petiole was especially reddish. Fruits are matured in June-July, and have stiff trichomes. R. sylvestris was widely distributed in the subtropical-temperate and temperate zone, and mainly distributed in the seashore and islands under 36$^{\circ}$ in Korea. Leaflets and petiole was reddish, and fruits were glabrous. R succedanea was only distributed in Jeju-do and several islands which is subtropical zone in Korea. Leaflets were lanceolate to oblong, characterized by little trichomes. R.chinensis is a ubiquitous tree which is widely distributed in the temperate zone, in Korea, and ranged perpendicularly to 800-900m. Inflorescense was characterized by apical site. Fruit was covered with dense short hairs and sometimes milky latex. R. ambigua was only distributed in subtropical zone, native in Kwang-do and Sangbaek-do, Yeochon-gun, Chunlanam-do in Korea. Especially, this species was a vine, trifoliolate and most poisonous. Leaflets were coriaceous, glabrous, and revolute type.

      • KCI등재후보

        비뇨기과 영역에서 의료기관 관련 감염의 예방을 위한 일본비뇨기과학회 진료지침

        정재민 대한요로생식기감염학회 2011 Urogenital Tract Infection Vol.6 No.2

        The present guideline for the prevention of health care-associated infection in urological practice is partially a result of numerous discussions of the working group in the Japanese Society of Urinary Tract Infection Cooperative Study Group. The results of these discussions were systematically organized by the Japanese Urological Association. They surveyed the literature including standard precautions, environmental considerations in both the inpatient and outpatient settings, the management of urinary catheters, endoscopy techniques, and the disinfection and sterilization of instruments used in endoscopies and related procedures. The concept of this guideline is to show the minimum precautions that urologists and other medical professionals should observe when they work in the urological field. Standard precautions based on hand hygiene and the use of personal protective equipment should be observed in both the inpatient and outpatient settings. In the inpatient setting, the management of the toilet is important. Collecting urine should be restricted only when it is necessary to determine a patient’s urinary output. The management for urinary catheter and infection are created based on the “European and Asian guidelines on management and prevention of catheter-associated urinary tract infections”. In addition, we propose that nephrostomy should be carried out after maximum barrier precautions have been taken. Urinary catheters are replaced in the event of an occlusion or if there are signs that an occlusion might occur, but the same catheter cannot be left in place for more than 2 months. Regarding the handling of urine containing Mycobacterium tuberculosis, airborne infection countermeasures are unnecessary, except for the laboratory personnel. For the procedures using urological endoscopes, aseptic techniques are recommended. Endoscopes and related devices should be used by sterilization or high-level disinfection, but formaldehyde gas cannot be used.

      • 급성 신우신염 환자의 치료기간에 영향을 주는 요인 분석

        정재민,김성주,성병주,김한석,이상돈,최성 고신대학교의과대학 2007 고신대학교 의과대학 학술지 Vol.22 No.1

        [Background] We analyzed the clinical aspects of acute pyelonephritis patients who received hospitalization treatment and the factors to effect a therapy session. [Methods] We evaluated 108 patients with acute pyelonephritis who underwent hospitalization treatment between January 2003 and May 2006. The patients were divided into two groups by history taking, radiological and laboratory finding : group A consisted of 60 patients without co-morbid condition and group B consisted of 48 patients with co-morbid conditions. Comparisons of the two groups were made using independent t-tests with hospitalized durations, uropathogen types, clinical improvement durations, laboratory improvement durations and co-morbid conditions. [Results] The analysis included 108 patients with a male to female sexual ratio of 1 : 7.3, a mean age of 51.3±16.8 years and a mean number of hospitalized days of 9.7±9.2 days. The co-morbid conditions were hypertension in 18 patients (16.7%), LUTS in 16 patients (14.8%), and diabetes mellitus in 15 patients (13.9%). The hospitalized durations of two groups were 7.4±3.3 and 10.5±6.2 days in group A and B. The uropathogen types were all E. coli in group A, whereas E. coil, Pseudomonas and Enterococcus were isolated in group B. Clinical and laboratory improvement duration of group A was significantly shorter than group B. The longer hospitalized duration of group B was seen in chronic renal failure and diabetes mellitus patients for 10.4±5.4 and 14.0±4.3 days and the longer laboratory improvement duration of group B was seen in chronic renal failure and diabetes mellitus patients for 5.3±5.2 and 5.9±5.5 days. [Conclusion] We concluded that the acute pyelonephritis with co-morbidity conditions need longer hospitalized days than that without co-morbidity conditions. Two variables (diabetes mellitus, chronic renal failure) that predicted a poor response after therapy for acute uncomplicated pyelonephritis. The more variable uropathogen were identified in a urine culture with co-morbidity conditions.

      • KCI등재

        CLIMEX-based Analysis of Potential Geographical Distribution of Aedes albopictus and Aedes aegypti in South Korea

        정재민,이지원,김창주,정성훈,이왕희 한국농업기계학회 2017 바이오시스템공학 Vol.42 No.3

        Purpose: Aedes aegypti and Aedes albopictus are notorious disease vectors that spread various viruses including dengue, yellow fever, chikungunya, and Zika. Recent Zika virus outbreaks were carried by Ae. aegypti, raising awareness about the perils of its global distribution. Because Ae. albopictus is spread throughout South Korea and can carry the same viruses as Ae. aegypti, monitoring potential distributions of Ae. albopictus and Ae. aegypti is necessary. Methods: In this study, the potential distributions of Ae. albopictus and Ae. aegypti in South Korea were modeled using CLIMEX software, and changes in response to climate change were predicted. Results: The results indicated that the climatic suitability for Ae. albopictus was consistently h igh, while occurrence of Ae. aegypti was only predicted for J eju I sland in 2080. Conclusions: The results provide basic information for preventing the invasion of Ae. aegypti, and consequent interactions between Ae. aegypti and Ae. albopictus, which may cause severe outbreaks of dangerous diseases.

      • KCI등재SCOPUS
      • KCI등재

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