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Performance Test and Function Analysis of the New Yellow Waxy Corn Hybrids, “Daehakchal Gold 1”
Hui Jeong Cha,Tae Gyu Bok,Moon Sub Lee,Seoung U Baek,Jeong Ill Joo,Eun Gyeoung Mo,Hee Bong Lee 한국작물학회 2010 한국작물학회 학술발표대회 논문집 Vol.2010 No.04
Inbred lines were gained from corn genetic resources collected by our lab and also deveolped by our Corn Breeding Lab. Materials used were eleven hybrids including yellow waxy corn hybrid CNU19 (applied as Daehakchal Gold 1 in 2007). These hybrids were harvested at 30th day after fertilization for antioxidants activity analysis; polyphenol compounds, inhibitory effect of xanthin oxidase activity, catalase activity, superoxide dismutase activity and DPPH radical scavenging activity. Daehakchal Gold 1 among hybrids were midseason variety and higher than check Chalok 1. The ratio of ear height to stem height was low as 50% below. Kernel set ratio was also higher than check hybrid. Among antioxidant analysis, Polyphenol compound was the highest in Daehakchal Gold 1 (CNU 19) as 3.77μg/ml, and CNU 21, CNU 93 and CNU153 including check were high trend compared to others. Xantine oxidase(OX) catalase activity, SOD activity and DPPH radical scavenging effect by using methanol extracts were also comparatively higher in CNU 19 hybrid than others. Besides, catalase activities of Daehakchal Gold 1 hybrid extracted by methanol and haxane were higher than other hybrids. From experiment results, this hybrid was superior to other used hybrids in botanical character, table quality and funtion.
Moon Hui jeong,Kim Kyunghoon,Kang Eun Kyeong,Yang Hyeon-Jong,Lee Eun 대한의학회 2021 Journal of Korean medical science Vol.36 No.35
Background: Prediction of mortality in patients with coronavirus disease 2019 (COVID-19) is a key to improving the clinical outcomes, considering that the COVID-19 pandemic has led to the collapse of healthcare systems in many regions worldwide. This study aimed to identify the factors associated with COVID-19 mortality and to develop a nomogram for predicting mortality using clinical parameters and underlying diseases. Methods: This study was performed in 5,626 patients with confirmed COVID-19 between February 1 and April 30, 2020 in South Korea. A Cox proportional hazards model and logistic regression model were used to construct a nomogram for predicting 30-day and 60-day survival probabilities and overall mortality, respectively in the train set. Calibration and discrimination were performed to validate the nomograms in the test set. Results: Age ≥ 70 years, male, presence of fever and dyspnea at the time of COVID-19 diagnosis, and diabetes mellitus, cancer, or dementia as underling diseases were significantly related to 30-day and 60-day survival and mortality in COVID-19 patients. The nomogram showed good calibration for survival probabilities and mortality. In the train set, the areas under the curve (AUCs) for 30-day and 60-day survival was 0.914 and 0.954, respectively; the AUC for mortality of 0.959. In the test set, AUCs for 30-day and 60-day survival was 0.876 and 0.660, respectively, and that for mortality was 0.926. The online calculators can be found at https://koreastat.shinyapps.io/RiskofCOVID19/. Conclusion: The prediction model could accurately predict COVID-19-related mortality; thus, it would be helpful for identifying the risk of mortality and establishing medical policies during the pandemic to improve the clinical outcomes.
Moon-Jin Jeong,Jung-Hui Son,Soon-Jeong Jeong,Ye-Jin Kim,Hee-Jung Lim,Im-Hee Jung,Do-Seon Lim 한국치위생과학회 2023 치위생과학회지 Vol.23 No.4
Background: The purpose of this study is to investigate the tooth whitening effect of Listerine Healthy White and provide effective management of extrinsic discoloration by comparing the whitening effects of existing whitening products.Methods: The included study four groups: those using whitening gel, whitening toothpaste, and Listerine Healthy White and a control using artificial saliva. Each group received 40 bovine tooth specimens, which were stained with commonly consumed tooth-coloring-inducing foods; black tea, black coffee, and instant noodles for 72 hours. The specimens were treated with tooth whitening materials for 5 weeks, after which the lightness (L*) was measured weekly using a spectrophotometer. Results: There was a significant difference in lightness among the groups between the 1st and 5th week of treatment for all tooth-coloring-inducing foods (p<0.05). When comparing the changes in lightness values from before whitening to the 5th week of whitening for all tooth-coloring-inducing foods, the order of change was as follows: whitening gel, whitening toothpaste, Listerine Healthy White, and artificial saliva. Listerine Healthy White showed a significant whitening effect for all tooth- coloring-inducing foods (p<0.05). Particularly, changes in lightness values for specimens stained by black tea after 5 weeks of whitening were in the following order: whitening gel (21.72), whitening toothpaste (14.89), Listerine Healthy White (12.91), and artificial saliva (3.85). For specimens stained by black coffee, the changes in lightness values were in the following order: whitening gel (12.99), whitening toothpaste (9.66), Listerine Healthy White (7.91), and artificial saliva (3.12). Lastly, changes in lightness values for specimens stained by instant noodles were as follows: whitening gel (10.84), whitening toothpaste (9.85), Listerine Healthy White (7.71), and artificial saliva (2.61). Conclusion: Listerine Healthy White exhibits continuous whitening effects over time, and for consumers seeking convenient ways to achieve tooth whitening effects at home, consistent use of Listerine Healthy White is recommended.
Kim, Jeong Lan,Park, Joon Hyuk,Kim, Bong Jo,Kim, Moon Doo,Kim, Shin-Kyum,Chi, Yeon Kyung,Kim, Tae Hui,Moon, Seok Woo,Park, Moon Ho,Bae, Jae Nam,Woo, Jong Inn,Ryu, Seung-Ho,Yoon, Jong Chul,Lee, Nam-Jin Cambridge University Press 2012 INTERNATIONAL PSYCHOGERIATRICS - Vol.24 No.4
<B>ABSTRACT</B><P>Background: The influences of demographics, culture, language, and environmental changes on Mini-Mental State Examination (MMSE) scores are considerable.</P><P>Methods: Using a sample of 7452 healthy, community-dwelling elderly Koreans, aged 55 to 94 years, who participated in the four ongoing geriatric cohorts in Korea, we investigated demographic influences on MMSE scores and derived normative data for this population. Geropsychiatrists strictly excluded subjects with cognitive disorders according to the protocol of the Korean version of the Consortium to Establish a Registry for Alzheimer's Disease Assessment Packet (CERAD-K) Clinical Assessment Battery (CERAD-K-C).</P><P>Results: Education (standardized <I>β</I> = 0.463), age (standardized <I>β</I> = −0.303), and gender (standardized <I>β</I> = −0.057) had significant effects on MMSE scores (p < 0.001). The score of MMSE increase 0.379 point per 1-year education, decrease 0.188 per 1-year older, and decrease 0.491 in women compared to men. Education explained 30.4% of the scores’ total variance, which was much larger than the variances explained by age (8.4%) or gender (0.3%). Accordingly, we present normative data for the MMSE stratified by education (0, 1-3, 4-6, 7-9, 10-12, and ≥ 13 years), age (60-69, 70-79, and 80-89 years), and gender.</P><P>Conclusions: We provide contemporary education-, age-, and gender-stratified norms for the MMSE, derived from a large, community-dwelling elderly Korean population sample, which could be useful in evaluating individual MMSE scores.</P>
정상법랑질과 인공우식법랑질에 불소바니쉬 도포 후 항우식 효과 비교
정문진 ( Moon Jin Jeong ),임지향 ( Ji Hyang Lim ),민지혜 ( Ji Hye Min ),정순정 ( Soon Jeong Jeong ),손정희 ( Jung Hui Son ),임도선 ( Do Seon Lim ) 한국치위생과학회 2013 치위생과학회지 Vol.13 No.4
In order to examine the anticariogenic effect after fluoride varnish was applied to sound enamel and artificial caries enamel, anterior teeth of healthy cattle were used and divided into four groups such as group 1 (sound enamel), group 2 (application of fluoride varnish to sound enamel), group 3 (artificial caries enamel) and group 4 (application of fluoride varnish to artificial caries enamel). Remineralization on the surface of enamel and changes of crystalline structure after demineralization were observed by using a field emission scanning electron microscope (FE-SEM). Quantitative analysis of Ca and P was measured by using the energy dispersive X-ray spectrophotometer (EDS). The following conclusions were obtained: 1)Surface pattern of enamel was the roughest in group 3 due to the defects caused by porosity and microcracks. Group 4, group 1 and group 2 were followed in order; 2) It was found that pattern of crystalline structures in a group of application of fluoride varnish and a group of no application showed bigger change in artificial caries enamel than that in sound enamel. In other words, groups 4 and 1 showed a similar pattern; 3) The contents of Ca and P were higher in groups of application of fluoride varnish (group 2 and group 4) than in groups of no application of fluoride varnish (group 1 and group 3). Taken results of this study together, in the case of application of fluoride varnish, crystalline structure was changed by remineralization even in the sound enamel. In particular, porous structures showed a smooth and uniform pattern due to the recalcification in the artificial caries enamel. In addition, according to results of EDS analysis, the contents of Ca and P were increased and it had great anticariogenic effects which inhibit decalcification of sound enamel and artificial caries enamel.
우식성 열구에 적용한 치면열구전색의 이차 우식에 대한 영향과 사용 실태
정문진 ( Moon Jin Jeong ),김아름 ( A Reum Kim ),김민지 ( Min Ji Kim ),정순정 ( Soon Jeong Jeong ),손정희 ( Jung Hui Son ),정성균 ( Sung Kyun Chung ),임도선 ( Do Seon Lim ) 한국치위생과학회 2014 치위생과학회지 Vol.14 No.4
This study was designed to investigate the using status and awareness of pit and fissure sealant, and how it affects on secondary caries when performed on above of initial caries. After classifying 446 occlusal surface into four groups, performed pit and fissure sealant, induced artificial caries, used DIAGNOdent (Kavo) to measure degree of secondary caries. Also, distributed a questionnaire on dental clinic in metropolitan area to find out using status and awareness of pit and fissure sealant, the following results were obtained. 1) On inspection and percussion, Group 4 corresponding to the enamel caries showed the highest secondary caries after sealant and was statistically significant difference in the order of initial group, stained group, sound group (p<0.05). 2) Inspection showed the highest percentage on tooth fissure caries diagnostic methods before sealant. 3) 56.6% didn`t know about DIAGNOdent, 91.6% didn`t have it. 4) In clinically, the most cause of secondary caries after sealant was a broken sealant, making caries on the downward. Based on the results of above study, degree of caries under sealant could affect on secondary caries, needs publicity about the use and necessity of objective fluorescence device.
Comparison of import risk analyses to evaluate the potential veterinary hazards of pork
Soo-Jeong Kye(Soo-Jeong Kye),Hui-Young Hwang(Hui-Young Hwang),Seong-Hee Kim(Seong-Hee Kim),Sung-Ik Moon(Sung-Ik Moon),Jin-Hee Hur(Jin-Hee Hur),Ji-Hye Kim(Ji-Hye Kim),Hve-Sook Chang(Hve-Sook Chang),Byo 한국예방수의학회 2022 한국예방수의학회 학술대회자료집 Vol.2022 No.-
정문진 ( Moon Jin Jeong ),정순정 ( Soon Jeong Jeong ),손정희 ( Jung Hui Son ),정성균 ( Sung Kyun Chung ),김아름 ( A Reum Kim ),강은주 ( Eun Ju Kang ),김은주 ( Eun Ju Kim ),김혜인 ( Hye In Kim ),장고은 ( Ko Eun Jang ),조민희 ( Min 한국치위생과학회 2014 치위생과학회지 Vol.14 No.4
To find out the effect of commercially available energy drinks on tooth enamel erosion, analyzed pH, buffering capacity, and the content of some of the inorganic components selecting 4 energy drinks that has high affinity of the products currently being sold. In addition, by observing the degree of erosion before and after immersion in energy drink by surface microhardness and scanning electron microscope (SEM) the results were as follows: Acidity of energy drink ?Burn Intense? was the lowest as 2.78±0.01 highest on distilled water as 6.475±0.01. ?Burn Intense? buffering capacity was 3.48±0.155 at pH 5.5, 1.88±0.15 at pH 7.0 which is the highest, and ?Hot6? was 1.71±0.37, 1.23±0.35 on each of it showing the lowest points. Ca content on energy drink was the highest at ?Volt Energy? as (77.21±2.70 mg/kg), the lowest at ?Hot6? as (0.98±0.05 mg/kg). P content was the highest on ?Hot6?(1.34±0.05 mg/kg) and detected at ?Red Bull?. Enamel surface hardness variation of the energy drinks before and after immersion showed rapid decrease at ?Red Bull? (66.65±35.60), and ?Volt Energy? (61.96±31.42), ?Burn Intense? (58.53±24.84), ?Hot6? (53.99±60.26) was in order. Distilled water, the control group, showed significant difference with the experimental group (p<0.05). But there was no significant difference between energy drinks. At SEM observation and analysis, ?Burn Intense? was the most severe demineralization, ?Volt Energy?, ?Hot6?, ?Red Bull?, distilled water was in order. In the above results, taken together there were no statistically differences between energy drinks but significant difference in comparison with distilled water. In addition, at SEM observation and analysis all energy drink caused dental erosion, especially ?Burn Intense?, has the lowest acidity, was serious. Thus, it is believed to provide a variety of oral health education and information about energy drinks that can affect the erosion of the teeth so public have the right to be recognized and reasonable dental care.
차나무의 품종, 부위, 채취시기에 따른 향기생성 효소의 활성과 향기배당체의 함량
정재천(Jae-Cheon Jeong),최정연(Jeong-Youn Choi),최문희(Moon-Hui Choi),손영란(Young-Lan Son),조정용(Jeong-Yong Cho),김선재(Seon-Jae Kim),문제학(Jae-Hak Moon),박근형(Keun-Hyung Park),마승진(Seung-Jin Ma) 한국차학회 2012 한국차학회지 Vol.18 No.4
Enzymatic activities and amounts of aromatic precursors, which are related with aroma formation in fermanted tea, were indirectly measured in vanious cultivars (Korean native cultivar, Taicha No.12, Yabukita), harvest time (May, July, September), and parts (aged leaves, young leaves, stem) by means of crude enzyme assay. Enzyme activities related to aroma formation in stems and young leaves were higher than those in aged leaves. Activities in parts harvested in September and July were higher than in those harvested in May. Total amounts of aromatic precursors were higher in young leaves than those in aged leaves from each cultivar. Amounts of precursors of geraniol and methyl salicylate were much higher in each part of Taicha No.12 than those of Yabukita, although much greater amounts of benzyl alcohol and 2-phenylethanol were liberated from Yabukita.