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Performance of Weibull function as a diameter distribution model for Pinus thunbergii stands in the eastern coast of South Korea

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Journal of Mountain Science 2016年第5期13卷 822-830页

作者： ABINO Azyleah Canizares KIM Sung Yong LUMBRES Roscinto Ian Canicosa jang mi Na YOUN Ho doong PARK Ki Hyung LEE Young Jin Department of Forest Resources Kongju National UniversityYesanChungnam 340-802South Korea Laguna Lake Development Authority DilimanQuezon City 1101Philippines College of Forestry Benguet State UniversityLa TrinidadBenguet2601Philippines Division of Forest Disaster Management Korea Forest Research InstituteSeou1130-712South Korea

This study was carried out to determine the performance of percentile-based Weibull diameter distribution model for Pinus thunbergii stands thriving along the eastern coast of South Korea. The parameter recovery technique was used to estimate the three parameters of the Weibull model. The analysis demonstrated satisfactory results based on the following test statistics for the principal percentile models： fit index （FI） range from 0.501（minimum diameter） to 0.932 （50th diameter percentiles） and root mean square error （RMSE） range from 0.112 （quadratic mean diameter） to 3.572 （minimum diameter）. The developed model was further evaluated by determining the mean bias （E） in trees per ha （TPH） for each diameter class, and the results showed highest over-prediction in the 20 cm, and under-prediction in the x6 cm and 24 cm diameter classes. The goodness of fit tested by Kolmogorov- Smirnov （KS） test showed no significant differences （P〉0.05） between the observed and predicted diameter distributions for almost all plots. Using site index and aboveground biomass （AGB） models developed for P. thunbergii in South Korea, a model to predict the AGB per ha for each diameter class and subsequently the total AGB of the stand was created. An application guide was also created, which will serve as a decision-support tool for forest managers in quantifying the future total AGB in P. thunbergii stands located in the eastern coast of South Korea and, subsequently, the quantification of potential carbon stocks aside from being a vital input in designing efficient management and protection strategies for these stands.

关键词： Aboveground biomass Weibull distribution Parameter recovery technique Site index Pinus thunbergii Diameter distribution

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Relationships among Event-Related Potentials, Memory, and Schizophrenic Symptoms in College Students with Schizotypal-Traits

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Open Journal of Psychiatry 2014年第4期4卷 353-363页

作者： Kyoung-mi jang Myung-Sun Kim Sungshin Women’s University Seoul Korea

The present study investigated the relationships among event-related potentials (ERPs), memory, and schizophrenic symptoms in college students with schizotypal-traits. Scores on the Schizotypal Personality Questionnaire (SPQ) were used to categorize the participants into schizotypal-trait (n = 30) and normal control (n = 37) groups. ERPs were assessed using an auditory oddball paradigm, in which a series of standard tones (1000 Hz) and target tones (1500 Hz) were presented;participants were asked to count the number of presented target tones. The verbal memory and visual memory of the participants were evaluated using the Korean version of the California Verbal Learning Test (K-CVLT) and the Rey-Osterrieth Complex Figure Test (RCFT), respectively. The schizotypal-trait and control groups did not differ in terms of age, educational level, IQ score, accuracy on the auditory oddball task, or performance on the K-CVLT and RCFT measures. However, the schizotypal-trait group exhibited significantly smaller P300 amplitudes than the control group. Additionally, the P300 amplitudes measured at Cz and Pz were negatively correlated with the cognitive-perceptual factor scores on the SPQ. Thus, the present results indicate that reduced P300 amplitudes may represent a biological marker of schizophrenia.

关键词： Schizotypal-Trait Event-Related Potentials P300 Auditory Oddball Paradigm Cognitive-Perceptual Factor of the SPQ

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Comparative Analysis of Four Stem Taper Models for Quercus glauca in Mount Halla,Jeju Island,South Korea

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Journal of Mountain Science 2014年第2期11卷 442-448页

作者： LUMBRES Roscinto Ian Canicosa LEE Young Jin CHOI Hyung Soon KIM Sung Yong jang mi Na ABINO Azyleah Caizares SEO Yeon Ok KIM Chan Soo PARK Jung Hwan Department of Forest Resources Kongju National University College of Forestry- Benguet State University La Trinidad Benguet 2601 Philippines Warm Temperate and Subtropical Forest Research Center Korea Forest Research Institute

This study was conducted to fit the diameter-height data of Quercusglaucain Jeju Island, South Korea to the four commonly used stem taper equations andto evaluate the performance of the four stem taper models using four statistical criteria： Fit index （FI）, root mean square error （RMSE）, bias （）,and absolute mean difference （AMD）. Results showed that the Kozak02stem taper equation provided the best FI（0.9847）, RMSE（1.5745）,（-0.0030 cm） and AMD （1.0990 cm） whileMax and Burkhart model had the poorest performance among the four stem taper models based on the four evaluation statistics （FI ： 0.9793,RMSE ： 1.8272, ： 0.3040 cm and AMD ： 1.3060 cm）. These stem taper equations can serve as a useful tool for forest managers in estimating the diameter outside bark at any given height, merchantable stem volumes and total stem volumesof the standing trees of Quercusglaucain theGotjawal forests located in Mount Halla, Jeju Island, South Korea.

关键词： MountHalla Merchantable stem volume Diameter outside bark Kozak model Model evaluation

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Electrophysiological correlates of cognitive inhibition in college students with schizotypal traits

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Open Journal of Psychiatry 2012年第1期2卷 68-76页

作者： Myung-Sun Kim Sung Hwa Oh Kyoung mi jang Huije Che Chang-Hwan Im 不详

Objective: We investigated cognitive inhibition in non-clinical individuals with schizotypal traits using event-related potentials. Methods: College students with psychometrically defined schizotypal traits (n = 16) and normal controls (n = 15) participated. The computerized Stroop task with three types of stimuli, i.e., congruent, incongruent, and neutral words, was used to measure cognitive inhibition. Results: The schizotypal-trait group committed significantly more errors in response to incongruent words than did the control group. The control group showed frontal negativity (FN) of significantly greater amplitude in response to incongruent than to congruent and neutral stimuli, whereas the schizotypal-trait group showed no significant difference in FN amplitude between incongruent and congruent/neutral stimuli at 300 - 400 ms poststimulus. A source localization analysis conducted in different waveforms for incongruent minus congruent conditions at 300-400 ms poststimulus showed reduced activation in the left cingulate cortex and in the middle/medial prefrontal cortex in the schizotypal-trait group compared with the control group. The two groups did not differ in the sustained potential amplitudes observed at 550-650 ms after stimulus-onset at parietal sites. Conclusions: These results suggest that individuals with schizotypal traits have difficulties in conflict detection and cognitive inhibition, possibly mediated by the cingulate cortex and prefrontal cortex.

关键词： Cognitive Inhibition Event-Related Potentials Frontal Negativity Schizotypal Trait Stroop Task Sustained Potential

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灵芝红景天复方制剂对小鼠免疫功能的影响

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免疫学杂志 2019年第1期35卷 59-64页

作者：谭晓宇杨勇王科斯 Hee-Do Hong mi jang Young-Ran Song 刘丽萍张庆镐延边大学医学院免疫教研室延吉133002 大连大学医学院 116622 韩国食品研究院首尔55365

目的探究灵芝红景天复方制剂对免疫低下小鼠免疫功能的影响。方法采用Balb/c种小鼠,分空白对照组和环磷酰胺诱导的免疫抑制组,免疫抑制组分为单纯免疫抑制组和给药组。灌胃周期为28 d,于第23和24天腹腔注射环磷酰胺(空白对照组注射生理... 详细信息

目的探究灵芝红景天复方制剂对免疫低下小鼠免疫功能的影响。方法采用Balb/c种小鼠,分空白对照组和环磷酰胺诱导的免疫抑制组,免疫抑制组分为单纯免疫抑制组和给药组。灌胃周期为28 d,于第23和24天腹腔注射环磷酰胺(空白对照组注射生理盐水)。计数小鼠外周血白细胞、观察小鼠脏器指数和脾细胞增殖能力,用ELISA的方法检测脾细胞培养液中的细胞因子含量,用流式细胞术检测脾细胞培养液中CD4、CD8表达情况。结果与环磷酰胺组(CTX)相比,灵芝红景天水提取复方制剂(CWO)低剂量组、灵芝红景天酶提取复方制剂(CEO)低剂量、CWO高剂量组、CEO高剂量组的脾脏指数、外周血白细胞计数、T和B淋巴细胞增殖率和TNF-α表达水平均显著增高(P<0.05);CWO高剂量组、CEO高剂量组的IL-6、IL-10表达水平显著增高(P<0.05);CWO高剂量组、CEO低剂量和CEO高剂量组的CD4/CD8显著增高(P<0.05)。与CWO高剂量组相比,CEO高剂量组的IL-10、TNF-α含量均显著增加(P<0.05)。与空白对照组相比,CWO低剂量组、CWO高剂量组、CEO低剂量组、CEO高剂量组的脏器指数、白细胞计数、T淋巴细胞增殖能力、细胞因子水平以及CD4/CD8水平均无统计学差异。结论灵芝红景天复方制剂可以显著增加免疫缺陷小鼠的免疫功能,经过酶处理提取的复方制剂药效优于水提取的复方制剂。

关键词：灵芝红景天复方制剂免疫功能

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KoNA:Korean Nucleotide Archive as A New Data Repository for Nucleotide Sequence Data

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Genomics, Proteomics & Bioinformatics 2024年第1期22卷 161-167页

作者： Gunhwan Ko Jae Ho Lee Young mi Sim Wangho Song Byung-Ha Yoon Iksu Byeon Bang Hyuck Lee Sang-Ok Kim Jinhyuk Choi Insoo jang Hyerin Kim Jin Ok Yang Kiwon jang Sora Kim Jong-Hwan Kim Jongbum Jeon Jaeeun Jung Seungwoo Hwang Ji-Hwan Park Pan-Gyu Kim Seon-Young Kim Byungwook Lee Korea Bioinformation Center Korea Research Institute of Bioscience&BiotechnologyDaejeon 34141Republic of Korea

During the last decade,the generation and accumulation of petabase-scale high-throughput sequencing data have resulted in great challenges,including access to human data,as well as transfer,storage,and sharing of enormous amounts of *** promote data-driven biological research,the Korean government announced that all biological data generated from government-funded research projects should be deposited at the Korea BioData Station(K-BDS),which consists of multiple databases for individual data ***,we introduce the Korean Nucleotide Archive(KoNA),a repository of nucleotide sequence *** of July 2022,the Korean Read Archive in KoNA has collected over 477 TB of raw next-generation sequencing data from national genome *** ensure data quality and prepare for international alignment,a standard operating procedure was adopted,which is similar to that of the International Nucleotide Sequence Database *** standard operating procedure includes quality control processes for submitted data and metadata using an automated pipeline,followed by manual *** ensure fast and stable data transfer,a high-speed transmission system called GBox is used in ***,the data uploaded to or downloaded from KoNA through GBox can be readily processed using a cloud computing service called *** seamless coupling of KoNA,GBox,and Bio-Express enhances the data experience,including submission,access,and analysis of raw nucleotide *** not only satisfies the unmet needs for a national sequence repository in Korea but also provides datasets to researchers globally and contributes to advances in *** KoNA is available at https://***/kona/.

关键词： Korea BioData Station Nucleotide sequence Next-generation sequencing repository Genomics Deposition and access of big data

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灵芝红景天复方制剂对小鼠的抗疲劳作用

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中国老年学杂志 2018年第24期38卷 6077-6079页

作者：谭晓宇杨勇王科斯 Hee-Do Hong mi jang Young-Ran Song 张庆镐刘丽萍延边大学医学院免疫教研室吉林延吉133002 大连大学医学院韩国食品研究院

目的探究灵芝红景天复方制剂对小鼠的抗疲劳作用。方法实验小鼠分为对照组、低剂量组、中剂量组、高剂量组。灵芝红景天复方制剂灌胃小鼠28 d,检测小鼠力竭游泳时间;同时检测血浆乳酸、乳酸脱氢酶、尿素氮、丙二醛(MDA)含量及肝脏和腓... 详细信息

目的探究灵芝红景天复方制剂对小鼠的抗疲劳作用。方法实验小鼠分为对照组、低剂量组、中剂量组、高剂量组。灵芝红景天复方制剂灌胃小鼠28 d,检测小鼠力竭游泳时间;同时检测血浆乳酸、乳酸脱氢酶、尿素氮、丙二醛(MDA)含量及肝脏和腓肠肌中糖原含量。结果与对照组比较,灵芝红景天复方制剂组小鼠游泳力竭时间、血乳酸脱氢酶、肝糖原、肌糖原均显著增加(P<0. 05),血乳酸、尿素氮和MDA含量均显著减少(P<0. 05)。结论灵芝红景天复方制剂可以显著增加小鼠抗疲劳功能。

关键词：灵芝红景天复方制剂抗疲劳

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Hemophagocytic lymphohistiocytosis triggered by relapsing polychondritis:A case report

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World Journal of Orthopedics 2024年第8期15卷 813-819页

作者： mi-Ran Han Jeong-Hwan Hwang Seungah Cha So-Yeon Jeon Kyu Yun jang Namsu Kim Chang-Hoon Lee Department of Internal Medicine Jeonbuk National University Medical SchoolJeonju 54907South Korea Department of Pathology Jeonbuk National University Medical SchoolJeonju 54907South Korea Department of Laboratory Medicine Jeonbuk National University Medical SchoolJeonju 54907South Korea

BACKGROUND Hemophagocytic lymphohistiocytosis(HLH)is a rare,life-threatening disorder caused by abnormal histiocytes and T cell *** adults,it is predominantly associated with infections,cancers,and autoimmune *** polychondritis(RP),another rare disease,is diagnosed based on symptoms without specific tests,featuring cartilage inflammation characterized by swelling,redness,and pain,rarely inducing *** SUMMARY A 74-year-old woman visited the emergency room with a fever of 38.6℃.Blood tests,cultures,and imaging were performed to evaluate *** showed increased fluorescent antinuclear antibody levels and mild cytopenia,with no other specific *** revealed lymph node enlargement was observed;however,biopsy results were *** re-evaluation of the physical exam,inflammatory signs suggestive of RP were observed in the ears and nose,prompting a tissue biopsy for ***,persistent fever accompanied by cytopenia prompted a bone marrow examination,revealing hemophagocytic *** finding no significant results in blood culture,viral markers,and tissue examination of enlarged lymph nodes,HLH was diagnosed by *** involved methylprednisolone followed by *** two months,bone marrow examination confirmed resolution of hemophagocytosis,with normalization of hyperferritinemia and *** Thorough physical examination enabled diagnosis and treatment of HLH trig gered by RP in patients presenting with fever of unknown origin.

关键词： Hemophagocytic lymphohistiocytosis Relapsing polychondritis Autoimmune disease Fever of unknown origin Steroid Case report

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Catalysts for electrochemical ammonia oxidation:Trend,challenge,and promise

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Science China Materials 2022年第12期65卷 3334-3352页

作者： Sol A Lee mi Gyoung Lee Ho Won jang Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Department of Electrical and Computer Engineering University of TorontoToronto M5S 3G4OntarioCanada Advanced Institute of Convergence Technology Seoul National UniversitySuwon 16229Republic of Korea

Developing sustainable and clean energy technology is critial to address the current energy and environmental *** an energy carrier,hydrogen has been getting attention due to its abundance,high energy density,and zero carbon *** to the difficulty of hydrogen storage and transport,the electro-oxidation of ammonia shows great potential for renewable energy since it satisfies both energy supply and environmental protection as a carbon-free fuel with high hydrogen ***,ammonia electro-oxidation is a sluggish reaction and shows low *** the complicated mechanism and intermediates is conducive to developing efficient electrocatalysts with high catalytic activity and *** review begins with the ammonia oxidation technologies and their *** two typical mechanisms for ammonia electro-oxidation,Oswin-Salomon mechanism and Gerischer-Mauerer mechanism,are discussed,and attention to the poisoning species is ***,the electrocatalysts for ammonia reaction are classified into Pt-based catalysts and non-noble metal-based catalysts,and their performances are reviewed with various *** on the progress on the electrochemical ammonia oxidation catalysts,the challenges and future insight on ammonia oxidation reaction are discussed and proposed.

关键词： NH3 oxidation reaction electrocatalysts green hydrogen

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给牙刷消毒

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建筑创作 2010年第9期 21-21页

作者： jang mi Sook 郑恬辛

我们一直很关注口腔的卫生，从牙膏到牙刷都有很多类型，包括牙刷的造型也力图更好地为口腔服务，但是我们甚少注意到牙刷本身的清洁问题。通常牙刷都和马桶处于同一个空间，要知道冲厕所的水压可以把马桶内的细菌带到6m高的位置，并且... 详细信息

我们一直很关注口腔的卫生，从牙膏到牙刷都有很多类型，包括牙刷的造型也力图更好地为口腔服务，但是我们甚少注意到牙刷本身的清洁问题。通常牙刷都和马桶处于同一个空间，要知道冲厕所的水压可以把马桶内的细菌带到6m高的位置，并且这些细菌可以在空中悬两小时之久，牙刷长期暴露在空气中，并且还携带有口腔内的细菌等。

关键词：牙刷消毒长期暴露多类型细菌口腔马桶空间

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