http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
강윤구,이준영,김준호,오택근,윤여욱 충남대학교 농업과학연구소 2023 Korean Journal of Agricultural Science Vol.50 No.4
Soil acidification challenges global food security by adversely influences soil fertility and agricultural productivity. Carbonized agricultural residues present a sustainable and ecofriendly way to recycle agricultural waste and mitigate soil acidification. We evaluated the effects of organic amendments on lettuce growth and soil chemical properties in two soils with different pH levels. Carbonized rice husk was produced at 600℃ for 30 min and rice husk was treated at 1% (w·w-1). Carbonized rice husk increased soil pH, electrical conductivity, total carbon content, and nitrogen content compared with untreated and rice husk treatments. Furthermore, this study found that lettuce growth positively correlated with soil pH, with increasing soil pH up to pH 6.34 resulting in improved lettuce growth parameters. Statistical correlation analysis also supported the relationship between soil pH and lettuce growth parameters. The study findings showed that the use of carbonized rice husk increased the constituent elements of lettuce, such as carbon, nitrogen, and phosphate content. The potassium content of lettuce followed a similar trend; however, was higher in acidic soil than that in non-acidic soil. Therefore, improving the pH of acidic soil is essential to enhance agricultural productivity. It is considered advantageous to use agricultural residues following pyrolysis to improve soil pH and agricultural productivity.
강윤구,강혜진,김경미,손태성,최동일,류민희,김우호,양한광 대한암학회 2012 Cancer Research and Treatment Vol.44 No.2
Despite their rarity in incidence and prevalence, gastrointestinal stromal tumors (GISTs) have emerged as a distinct and noteworthy pathogenetic entity. The clinical management of GISTs has rapidly evolved due to the recent elucidation of their oncogenic signal transduction pathway and the introduction of molecular-targeted therapies. Successful management of GISTs requires a multidisciplinary approach firmly based on an accurate histopathologic diagnosis. In 2007, the Korean GIST study group published the first guideline for optimal diagnosis and treatment of GISTs in Korea. The second version of the guideline was published in 2010. Herein, we provide the results of relevant clinical studies for the purpose of further revision to the guideline. We expect this new guideline will enhance the accuracy of diagnosis, as performed by members of the Korean associate of physicians involved in GIST patient care, thus improving the efficacy of treatment.
한국 단일기관 응급실을 방문한 소아환자에서 급성위장염 발생과 지역 기온의 상관관계
강윤구,박소원,고홍,김승 대한소아응급의학회 2018 대한소아응급의학회지 Vol.5 No.1
Purpose: Several studies have investigated the association between acute gastroenteritis (AGE) and regional temperatures. We aimed to investigate the correlation between the occurrence of AGE and regional temperature in Korean children. Methods: We reviewed the clinical characteristics of children aged 18 years or younger with AGE, defined according to the International Statistical Classification of Diseases, 10th Revision codes, who visited a Korean tertiary hospital emergency department (ED) between 2006 and 2016, and compared the children who were discharged from the ED and those who were hospitalized. Data on temperature in Seoul, Korea during the period were obtained from the Korea Meteorological Administration. Subsequently, we assessed correlations between the monthly mean numbers of the children with AGE and monthly mean temperature using Pearson’s correlation analysis. Results: A total of 31,931 children with AGE visited the ED. Vomiting was the most common manifestation (62.0%). Fever, chills, cough, and sputum were more frequent in the hospitalized children (P < 0.05). Hospitalization rate was highest (2.7%) and monthly mean temperature was lowest (-2.4。C) in January. We observed negative correlations between the monthly mean numbers of the children with AGE and the monthly mean temperature (for ED visit, r = -0.845; for hospitalization, r = -0.923). Conclusion: Children with AGE tend to visit the ED, and undergo hospitalization during the cold weather. This finding could help the guardians to expect the occurrence of AGE, and physicians to facilitate the allocation of resources for emergency medicine in winter.