Growth Characteristics and Physiological Responses of Soybean (Glycine max L.) under Excessive Soil Moisture Stress

전현정,이상훈,공동혁,김원찬,이상협,정기열 한국토양비료학회 2022 한국토양비료학회지 Vol.55 No.3

Due to global climate change and poor drainage soil characteristic in paddy fields, soybeans which are one ofmain upland crops in Korea are prone to get stressed by excessive soil moisture during cultivation. Excessivesoil moisture stress causes poor growth, yield loss, and disease to soybeans. In order to prevent damages byexcessive soil moisture stress, it is important to understand responses of soybeans under excessive soil moisturecondition. Therefore, this study investigated morphological and physiological responses of soybeans byexcessive soil moisture at various growth stages; V2, R1, R3, R5 and whole growing period. Soybeans wereplanted and characteristics of photosynthesis, chlorophyll fluorescence and 1-Aminocyclopropane-1-carboxilicacid (ACC) were measured from leaves after excessive soil moisture treatment. After harvest, growth and yieldcomponents were measured. As a result, soybean showed the smallest stalk height from soybeans which hadexcessive soil moisture at V2 and whole growing period. On the other hand, the greatest yield loss occurredwhen excessive soil moisture applied at R5, while the smallest at R2 and whole growing period. Soybean leavesshowed the smallest photosynthetic rate and stomatal conductance under excessive soil moisture condition. These decline continued at least 1 week and restored to the values of photosynthetic rate and stomatal conductancefrom soybeans with no stress. Soybeans under excessive soil moisture exhibited greater ACC values thanone of no stress. These increment of ACC continued 2 weeks and diminished. Soybeans treated with excessivesoil moisture at V2, R1, R3 and whole growing period had decrease in photosynthetic rate and increase in ACCvalues. These results can indicate that changes of ACC contents in soybean leaves may be used as indicator ofexcessive soil moisture stress.

ATRP를 이용한 별모양 PMMA의 합성

전현정,김문희,김진숙,안성희,최진환,조광수,육지호 한국공업화학회 2006 한국공업화학회 연구논문 초록집 Vol.2006 No.-

불가항력 의료사고 보상사업에 대한 헌법적 쟁점 검토

전현정 대한의료법학회 2020 의료법학 Vol.21 No.1

불가항력 의료사고 보상사업의 근거 법률인 현행 「의료사고 피해구제 및 의료분쟁 조정 등에 관한 법률」 제46조제1항에서는, 보건의료인이 충분한 주의의무를 다하였음에도 불구하고 불가항력적으로 발생한 ‘분만에 따른 의료사고’를 사업의 대상으로 정하고 있다. 또한, 동법 시행령에서 보건의료기관개설자 중 분만실적이 있는 자가 보상재원의 30%를 부담하게 규정하고 있는바, 이에 대하여 헌법재판소에서는 2015헌가13 결정을 통해 의료분쟁조정법에서 위 사업의 분담금 납부의무자의 범위와 보상재원의 분담비율을 시행령에 위임하였다고 하여 헌법에 위반되지 않는다고 결정한 바 있다. 그러나 이는 의료진으로 하여금 의료과실이 없는 분만사고에 대하여 금전적으로 보상하게 하는 것으로 과실책임주의를 배제한 것인바, 이 제도의 본질이 사회보상적 성격을 갖는 사회보장제도의 일종이라면, 보건의료개설자의 비용분담 규정을 삭제하고 국가가 비용 전부를 부담하는 방법을 고려할 수 있을 것이다. 다만, 이와 더불어 의료사고 원인분석 및 재발방지 조치 등 의료기관의 노력을 강화하기 위한 제도적 장치를 함께 검토할 필요가 있다. 더불어, 의료분쟁조정법상 보건의료개설자가 부담하여야 할 보상재원의 분담비율의 상한을 정하는 것이 포괄위임금지원칙의 취지에 부합할 것이다. 한편, 의료사고 보상심의위원회의 분담금 지급기준과 관련하여, 시행령에서 보상의 기준이 되는 재태주수, 출생체중 등을 적시하고, 그 세부기준을 의료사고 보상심의위원회에서 정함이 타당하다. 마지막으로 불가항력 의료사고 보상사업에서 보상의 회색지대를 방지하기 위함은 물론, 의료‘과실’이 규범적 판단임을 고려할 때 위 동법 제48조 제1항의 규정에서 ‘보건의료인의 과실이 인정되지 않는다는 취지의 감정서가 제출되고’의 요건은 삭제하는 것이 바람직하며, 반드시 의료중재원 조정·중재절차가 선행되어야 하는 현행의 규정을 개선할 필요가 있을 것이다. In principle, even if serious consequences such as death or serious injury of a patient occur as a result of a medical accident, if the medical malpractice of a health care worker is not recognized, the health care worker is not held liable for said consequences. However, with the opening of the Korea Medical Dispute Mediation and Arbitration Agency on April 7, 2012, a system was established to compensate health care personnel for their medical malpractices only in the case of “injuries caused by medical accidents in the course of childbirth” (hereinafter referred to as “program for compensation of medical accidents”). Article 46 paragraph 1 of the current Medical Dispute Mediation Act, which is the basis of the Force Majeure Medical Accident Compensation System, stipulates that “medical accidents under delivery” claims are to be determined by the Medical Accident Compensation Review Committee are subject to the compensation project. And the details of the compensation, ratio of sharing financial resources for compensation, scope of compensation, and the guidelines and procedure for the payment of compensations are prescribed by Presidential Decree. In other words, the Presidential Decree requires the state to pay 70 percent of the compensation funds, and 30 percent of the above funds among health care providers. The Constitutional Court has decided on the 2015Hun-Ga13 that the scope of the health care institution's founders and the share of the compensation funds cannot be directly determined by the law, and that the portion delegated by the Presidential decree does not violate the Principle of Legal Protection nor Comprehensive Nondelegation Doctrine. However, this can be seen as an exclusion of accountability for force-induced delivery accidents even if there is no negligence of the medical staff. If the nature of the system is a type of social security system with a social compensatory nature, it could consider eliminating the health care innovator's cost-sharing provisions, leaving the full cost to the state. However, it is also necessary to review institutional protocols that strengthen the efforts of medical institutions in areas such as analysis of the causes of medical accidents and measures to prevent their recurrence. In addition, I think that the conclusion of the Act is in line with the purpose of the Comprehensive Wage Support Regulations that at minimum the law sets an upper limit of the compensation funds that are to be paid by health and medical institutions. Moreover, it is reasonable for the Medical Accident Compensation Review Committee to specify gestational age and weight of births, which are the criteria for compensation, under the Enforcement Decree of the Medical Dispute Mediation Act, in relation to the criteria for payment of contributions by the Medical Accident Compensation Review Committee, and to set the detailed criteria.

Synthesis of high molecular weight asymmetric star PMMA by ATRP

전현정,김문희,김진숙,안성희,최진환,조광수,육지호 한국고분자학회 2006 한국고분자학회 학술대회 연구논문 초록집 Vol.2006 No.4

A Synergy Effect of Combination of Acupoints in Cocaine Take

전현정,이봉효,이경민,김재수,이윤규,이지혜,정태영,양재하,윤성순,김홍유,최성훈,한창현,임성철,Jeon, Hyeon-Jeong,Lee, Bong-Hyo,Lee, Kyung-Min,Kim, Jae-Su,Lee, Yun-Kyu,Lee, Ji-Hye,Jung, Tae-Young,Yang, Chae-Ha,Yoon, Seong-Shoon,Kim, Hong-Yu,Cho The Korean Acupuncture Moxibustion Medicine Societ 2010 대한침구의학회지 Vol.27 No.2

목적 : 침술은 한국과 같은 동아시아에서 잘 알려진 효과적인 치료법이며 정신 이상을 포함한 다양한 질환의 치료에 사용되어 왔다. 서양에서 침술은 유용한 보완대체의학으로서 각광을 받고 있다. 본 연구는 침술이 코카인 섭취를 줄이는 데에 있어서 효과가 있는지, 또 경혈의 복합 처방이 단일 경혈에 비해 더 효과적인지 여부를 알아보고자 계획되었다. 방법 : 본 실험에서는 270~300 그램의 웅성 흰쥐에게 FR 1 프로그램에서 먹이를 자가 섭취하도록 훈련시켰다. 동물이 3일 연속 3시간 이내에 100개의 먹이를 섭취하면 수술을 하였다. 복강주사로 마취를 시킨 뒤 오른쪽 경정맥으로 관을 삽입하고 천으로 고정시켰다. 회복기를 끝낸 동물은 매일 1시간 동안 FR 3 프로그램으로 코카인을 섭취하도록 훈련 받았다. 3일 연속 섭취량이 일정하면 다음날 한의사가 1분간 침 처치를 하였다. 대조군은 침 자극을 제외하고 똑 같은 조건으로 하였다. 결과 : 신문혈은 코카인 섭취를 줄였으나, 다른 경혈은 그렇지 못하였다. 더구나 신문과 태연을 같이 자침한 경우 단일 경혈에 비해 약간 더 억제하는 효과를 보였다. 그럼에도 불구하고 침술이 식욕에는 별다른 영향을 주지 않았다. 결론 : 이러한 연구 결과는 침술이 적어도 어느 정도 코카인 남용 치료에 있어서 유용하며 경혈을 복합으로 사용하는 것이 단독 사용보다 더 우수할 수 있음을 제시한다.

성인 특발성 중추성 요붕증의 임상적 경과

전현정,박순희,권성희,이선화,박경수,김성연,이홍규 대한내분비학회 2001 Endocrinology and metabolism Vol.16 No.2

Background: Idiopathic Central Diabetes Insipidus in children or adolescents requires a frequent follow-up regimen using serial brain MRI and CSF examinations especially if an isolated pituitary stalk thickening or loss of a hyperintense signal in the posterior pituitary lobe is observed. Although a detailed description has not been made in adults who had Idiopathic Central Diabetes Insipidus, the clinical course of a Central Diabetes Insipidus in children or in adolescents can not be applied to adults because a follow-up study is so invasive and expensive. In this report, we evaluated the clinical course of Idiopathic Central Diabetes Insipidus in adults. Methods: The diagnosis of Idiopathic Central Diabetes Insipidus was based on the presenting clinical symptoms, the water deprivation test, biochemical studies and a brain MRI. We measured the urine specific gravity, urine and plasma osmolarity, electrolytes, and daily urine amount and we also performed an anterior pituitary evaluation. Patients had contrast-enhanced MRI and biochemical studies every 4 to 12 months. Results: The patients included 8 females and 4 males. Their ages ranged from 20 to 76 years and their mean age was 45±17 years. Tumor markers in the CSF were not detected any of the patients. An anterior pituitary evaluation showed that four patients had hyperprolactinemia, and five patients had impaired secretory responses of Growth Hormone to an insulin induced hypoglycemia. Nine of the 12 patients had thickening of the pituitary stalk, seven had lacked the hyperintense signal of a normal neurohypophysis. The abnormalities of MRI disappeared in 3 patients by the 4th, 27th and 36th month follow up periods, respectively. The follow up duration was between 8 months and 11 years 3 months and the mean follow up duration period was 50.6±45.5 months. Clinical symptoms were corrected by DDAVP administration. Other symptoms were absent. Conclusion: In our study, of Idiopathic Central Diabetes Insipidus in adults there were no observed germinomas or other disease that were observed. Therefore this disorder may have a benign course

Association of Monocyte Chemoattractant Protein-1 (MCP-1) 2518A/G Polymorphism with Proliferative Diabetic Retinopathy in Korean Type 2 Diabetes

전현정,최형진,박병희,이용희,오태근 연세대학교의과대학 2013 Yonsei medical journal Vol.54 No.3

Purpose: Monocyte chemoattractant protein-1 (MCP-1) is a chemokine that can increase adhesion molecule expression on monocytes and produce superoxide anions. Hyperglycemia induces MCP-1 production in vascular endothelial cells and retinal pigmented epithelial cells, and has been implicated as a causal factor in the facilitation of vascular complications in diabetes. In the present study, we evaluated the association of a single nucleotide polymorphism (SNP) in the MCP-1 gene with proliferative diabetic retinopathy (PDR) in a Korean population with type 2 diabetes. Materials and Methods: We conducted a case-control study, which enrolled 590 subjects with type 2 diabetes, and SNP genotyping of c.2518A/G in the MCP-1 gene was performed using polymerase chain reaction followed by digestion with PvuII restriction enzyme. Results: The prevalence of c.2518A/G polymorphism in diabetic patients was 13.2% (A/A), 47.1% (A/G) and 39.7% (G/G). In patients with diabetic retinopathy, the prevalence of PDR was significantly higher (p=0.009) in diabetic subjects with the c.2518A/A genotype (35.9%; n=78) compared to those with either the A/G or G/G genotype (22.3%, n=512). The prevalence of any other micro and macro-complications, including nephropathy and cerebrovascular events, were not different according to the c.2518A/G genotype. Conclusion: Our new genetic findings suggest that the c.2518A/A genotype in MCP-1 could be used as a susceptibility gene to predispose Koreans exhibiting type 2 diabetes for the development of PDR.

경향점수 매칭을 활용한 기업의 교육훈련이 근로자의 직무만족 및 조직몰입에 미치는 영향 분석

전현정,정혜원 한국교육학회 2017 敎育學硏究 Vol.55 No.1

본 연구의 목적은 교육훈련 참여여부가 조직성과인 직무만족과 조직몰입에 미치는 영향에 대한 인과효과를 검증하려는데 있다. 이를 위해 인적자본기업패널(HCCP) 6차년도 자료를 경향점수 매칭방법(propensity score matching)과 다층모형(multilevel model)을 활용하여 분석하였다. 직무만족과 조직몰입에 대한 영향요인으로 기대되는 다양한 조직문화 변인들을 공변인으로 설정하였고, 경향점수 매칭방법을 통해 교육훈련에 참여한 집단(처치집단)과 참여하지 않은 집단(통제집단) 간 동등성을 확보하였다. 동등성이 확보된 자료를 통한 다층모형 분석결과, 단순한 교육훈련 참여 여부는 직무만족과 조직몰입에 정적인 영향을 미치지 못하였고, 이에 반해 교육훈련에 대한 직원들의 흥미와 교육내용의 직무연관성, 범용성 정도가 직무만족과 조직몰입에 긍정적인 영향을 미치고 있음을 확인할 수 있었다. 이와 함께 근로자가 가지고 있는 성별과 최종학력과 같은 개인특성 변인도 조직성과에 유의미한 영향을 미치고 있는 것으로 나타났다. 이러한 연구결과를 바탕으로 본 연구는 기업의 인적자원개발 방안에 대한 시사점을 논의하였다. The purpose of this paper was to verify the empirical causal effects of participation in the training on job satisfaction and organizational commitment. To do this, the propensity score matching and multilevel model were adapted to 6th human capital corporate panel(HCCP) data. Various organizational culture variables, which were expected to be influential factors on job satisfaction and organizational commitment, were modeled as covariate variables. Using the propensity score matching method, the homogeneity between the two groups according to participation in the training was secured. As a result of the multilevel model analysis using homogenous data, participation in education and training did not have a statistically significant effect on job satisfaction and organizational commitment. On the other hand, it was confirmed that the interest of the employees in the education and training, the job relevance of the contents of education, and the generality have positive effects on job satisfaction and organizational commitment. In addition, personal characteristics such as gender and education level of workers have a significant effect on organizational performance. Finally, based on the results of this study, implications for corporate human resource development were discussed.

Review of Soil Structure Quantification from Soil Images

전현정,Daniel Gimenez,윤성원,박찬원,문용희,손연규,현병근 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.3

Soil structure plays an important role in ecological system, since it controls transport and storage of air, gas,nutrients and solutions. The study of soil structure requires an understanding of the interrelations and interactions between the diverse soil components at various levels of organization. Investigations of the spatial distribution of pore/particle arrangements and the geometry of soil pore space can provide important information regarding ecological or crop system. Because of conveniences in image analyses and accuracy,these investigations have been thrived for a long time. Image analyses from soil sections through impregnated blocks of undisturbed soil (2 dimensional image analyses) or from 3 dimensional scanned soils by computer tomography allow quantitative assessment of the pore space. Image analysis techniques can be used to classify pore types and quantify pore structure without inaccurate or hard labor in laboratory. In this paper, the last 50years of the soil image analyses have been presented and measurements on various soil scales were introduced,as well. In addition to history of image analyses, a couple of examples for soil image analyses were displayed. The discussion was made on the applications of image analyses and techniques to quantify pore/soil structure.

Computer Tomography as a Tool for Physical Analysis in an Anthropogenic Soil

전현정,박찬원,손연규,조현준,현병근,송관철,장용선 한국토양비료학회 2013 한국토양비료학회지 Vol.46 No.6

Human influence on soil formation has dramatically increased as the development of human civilization andindustry. Increase of anthropogenic soils induced research of those soils; classification, chemical and physicalcharacteristics and plant growth of anthropogenic soils. However there have been no reports on soil poreproperties from the anthropogenic soils so far. Therefore the objectives of this study were to test computertomography (CT) to characterize physical properties of an anthropogenic paddy field soil and to finddifferences between natural and anthropogenic paddy field soils. Soil samples of a natural paddy field weretaken from Ansung, Gyeonggi-do (Ansung site), and samples of an anthropogenic paddy field were fromGumi in Gyeongsangnam-do (Gasan) where paddy fields were remodeled in 2011-2012. Samples were takenat three different depths and analyzed for routine physical properties and CT scans. CT scan provided 3dimensional images to calculate pore size, length and tortuosity of soil pores. Fractal analysis was applied toquantify pore structure within soil images. The results of measured physical properties (bulk density, porosity)did not show differences across depths and sites, but hardness and water content had differences. Thesedifferences repeated within the results of pore morphology. Top soil samples from both sites had greater porenumbers and sizes than others. Fractal analyses showed that top soils had more heterogeneous pore structuresthan others. The bottom layer of the Gasan site showed more degradation of pore properties than ploughpanand bottom layers from the Ansung site. These results concluded that anthropogenic soils may have moredegraded pore properties as depth increases. The remodeled paddy fields may need more fundamentalremediation to improve physical conditions. This study suggests that pore analyses using CT can provideimportant information of physical conditions from anthropogenic soils.