염소이온이 코발트의 부식반응에 미치는 영향

朱宰伯,李政峻 弘益大學校 科學技術硏究所 2000 科學技術硏究論文集 Vol.11 No.-

Electrochmical dissolution behavior of cobalt in chloride solution was investigated. Kinetic data of cobalt dissolution and hydrogen reduction were measured in acid and alkaline solutions containing chloride ions at several pH values. Rotating disc electrode was used in order to eliminate the mass transport limitations at the electrode surface. The effect of pH on the corrosion potential and corrosion current were observed. Also the kinetic mechanism of cobalt dissolution in acid solution was examined. It was found that the dissolution behavior in chloride solution is quite different from that in sulfate solution.

[PB-0042] Identification of Candidate Genes Controlling Capsaiciniod Biosynthetic Genes Using an EMS-induced Mutant Pepper (Capsicum annuum L.)

Seungki Back(Seungki Back),Joohyun Lee(Joohyun Lee),Sanghyun Ahn(Sanghyun Ahn),Joung-Ho Lee(Joung-Ho Lee),Doyeon Hwang(Doyeon Hwang),Byoung-Cheorl Kang(Byoung-Cheorl Kang) 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-

A prediction model for cognitive decline in community-dwelling older people

백종환 ( Back Joung Hwan ) 대전대학교 기초과학연구소 2024 혜화보건의료학회지 Vol.3 No.1

Objectives: Because of rapid population aging, cognitive decline and dementia in the older population are recognized as major public health problems. The purpose of this study was to identify demographic, behavioral, medical, and genetic factors associated with cognitive decline, and to develop a model that can predict cognitive decline. Methods: Data for community-dwelling people aged 65 years and older were obtained from the Gyeonggi Dementia and Mild Cognitive Impairment Study (GDEMCIS). Cognitive decline was defined using the random slope and intercept linear mixed model. Those demonstrating a change in the slope of less than 0 were defined as decliners. Data mining such as decision tree and bagging methods were used to develop the prediction model for cognitive decline. Results: Among the subjects, 7.4% showed cognitive decline. Based on the area under the curve the prediction model based on decision tree analysis was selected. In the modeling dataset, 59 (7.4%) showed cognitive decline. The prediction model identified 49 cognitive decliners (6.2%). The correct classification rate of the prediction model was 93.4%. Conclusions: In this study, a prediction model for cognitive decline in community-dwelling older people was developed. The prediction model may provide useful information to healthcare professionals in identifying and monitoring older adults vulnerable to cognitive decline.

A Case of Adult Onset Langerhans Cell His tiocytosis Presenting with Central Diabet es Insipidus

( Min Kyung Back ),( Sang Hyun Ju ),( Min Young Shin ),( Ji Min Kim ),( Yea Eun Kang ),( Ju Hee Lee ),( Kyong Hye Joung ),( Bon Jeong Ku ),( Hyun Jin Kim ) 대한내과학회 2015 대한내과학회 추계학술대회 Vol.2015 No.1

Langerhans cell histiocytosis(LCH) is characterized by an abnormal proliferation and accumulation of pathological Langerhans cell in single or multiple organs. Central diabetes insipidus(CDI) is most common endocrine manifestation in about 25 percent of LCH. The incidence of LCH is very low and usually encountered children aged 1 to 3 years. In particular, adult onset LCH is even rarer and its incidence has been reported to be around 1 to 2 case per million people per year. We report a case of a 44-year-old woman diagnosed with multisystem LCH presenting with CDI. A 44-year-old woman was diagnosed with idiopathic CDI through water deprivation test and sellar MRI and was treated with desmopressin in other hospital.After treatment, polydipsia and polyuria were improved, but galactorrhea and irregular menstruation continued, so she visited our hospital. There is no abnormal symptom, sign and laboratory finding except prolactin and FSH level increased to 43.51 and 81 respectively. 2 months after first visit, she had lower back pain and then sacrum biopsy was performed in orthopedics which resulted benign. However, sustained galactorrhea made her to visit our hospital again and recheck the pituitary hormone. There was no abnormal findings on anterior pituitary stimulation test except the elevated basal level of prolactin. Sellar MRI revealed multiple metastasis in sellar, suprasella area, both side frontal lobes and pons. Additionally, PET-CT showed multiple metastasis in pituitary gland, T1-, T5-spine, sacrum, Rt. humerus head, and Rt. pelvic bone. We performed sellar mass biopsy for tissue diagnosis, which revealed aggregation of histiocytes with strong reactivity to anti-CD1a and anti-CD68 antibody on the immunohistochemistry. In the case of idiopathic CDI with pituitary stalk thickening, we should consider the possibility of LCH and perform follow-up MRI.

[PD-0020] High Efficient Transgene-free Genome Editing in Solanum lycopersicum using Potato Virus X

Seo-Young Lee(Seo-Young Lee),Jelli Venkatesh(Jelli Venkatesh ),Joung-Ho Lee(Joung-Ho Lee),Seungki Back(Seungki Back),Jung-Min Kim(Jung-Min Kim),Byoung-Cheorl Kang(Byoung-Cheorl Kang) 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-

말라리아 환자 32예의 임상적 고찰

정용희,백일현,김태형,김영식,이우인,서환조 대한화학요법학회 2000 대한화학요법학회지 Vol.18 No.1

목적 : 삼일열 말라리아는 국내에서 1986년 이후에는 박멸된 것으로 알려졌으나 1993년 이후 증가하는 양상을 보이고 있다. 이에 말라리아의 임상적 고찰을 통하여 이 질환을 이해함에 있다. 방법 : 1991년 1월부터 1999년 10월까지 반복적 고열과 오한을 주소로 본 병원에 내원하여 말초혈액 도말검사에 의해 말라리아 감염으로 확진된 32예의 환자에 대해서 후향적으로 조사하였다. 결과 : 1991년부터 1999년 10월까지 총 32명의 환자의 연도별 발생빈도는 각각 1991년에 1명, 1996년에 1명, 1997년에 3명, 1998년에 13명, 1999년에 14명이었다. 월별발생빈도는 7월과 8월에 집중적으로 발생하였다.(46.9%) 환자의 거주지는 경기 연천과 파주에 주로 분포되었다(53.1%). 성별발생분포는 32예의 환자중에 여자가 5명, 남자가 27명으로 남자가 더 많았다. 발병연령은 22세에서 87세까지 분포되었고 20-30대에 많이 발생하였으며 20대가 가장 많았다. 군인 및 제대자가 17명(59.4%)에 해당하였으며, 제대자의 평균 제대후의 기간은 10개월 정도였다. 가장 흔한 임상증상은 발열 및 오한이었다.(100%) 비장종대 및 간장종대는 각각 26명(81.3%), 3명(9.4%)에서 관찰되었다. 검사실 소견은 평균적으로 WBC 5.317/㎕, 혈색소 12.5±7.1g/㎗, 혈소판 78,906.3±68391.4㎕, GOT/GPT 43.7±26.7/49.6±57.3 IU/ℓ, Total bilirubin 1.6±0.9㎎/㎗를 보였다. 말초혈액 도말검사상 모두 P. vivax였다. 치료는 hydroxychloroquine과 primaquine의 치료에 잘 반응하였다. 결론 : 말라리아는 7월과 8월에 한국에서 호발하는 중요한 급성 열성 질환으로 조기 진단 및 치료에 보다 관심을 기울여야 할 것이다. Background : In Korea malaria has been rare, but since reemergence of indigenous vivax malaria in 1993, the number of cases of malaria have recently increased. We analyzed the cases of malaria who were treated in Kyung-Hee University College of Medicine with regard to define the clinical characteristics of malaria. Methods : We retrospectively analyzed of 32 cases of malaria admitted to Kyung-Hee University Hospital between 1991 and 1999. Malaria was diagnosed by peripheral blood smear. Results : Among a total of 32 cases, the number of yearly incidence of 1991, 1996. 1997, 1998 and 1999 were 1,1,3,13,14 respectively. It demonstrated the high incidence especially between July and August. The most patients (53.1%) resided in Yeonchon and Pajoo. Among them, 5 cases were female and 27 cases were male. The age distribution ranged from 22 to 76 year old. The high incidence of age was between 20's and 30's. Military solidiers and ex-soldiers are 17 cases(59.4 %). The most frequent symptom was fever and chills (100%). Splenomegaly and hepatomegaly were also observed in 81.3 %(26 of 32) and 9.4 %(3 of 32) respectively. The laboratory findings were WBC 5.317/㎕. Hb 12.5±2.1 g/dl. platelet 78,906±68,391.4/㎕. GOT/GPT 43.7±26.7/49.6±57.3 IU/L. LD 678.3±50.1 IU/L. total bilirubin 1.6±0.9mg/dl- The all cases were treated suscessfully with hydroxychloroquine and primaquine. There were no central nervous system complications and pulmonary edema. Conclusion : Malaria is one of the important acute febrile illness with the high incidence between July and August.

Process-based Modelling Using Nutrient Inputs, Animal Inventory, Manure Dynamics, and Ammonia Emissions from Swine Finishing Farm

( Joung Soo Lim ),( Sung-back Cho ),( Deug-woo Han ),( Sang-ryong Lee ),( Ok-hwa Hwang ),( Jung-hoon Kwag ),( Sang Ryong Lee ) 한국폐기물자원순환학회(구 한국폐기물학회) 2016 한국폐기물자원순환학회 춘계학술발표논문집 Vol.2016 No.-

The purpose of National Air Emission Monitoring Study (NAEMS) was to quantify air emissions from livestock (swine and dairy) and poultry production, provide reliable data for developing and validating barn and lagoon emission models, and develop national consensus on methods of measuring, calculating, and reporting emissions (Schutz et al. 2005). The ancillary information forms the basis for future development of nutrient balances, acts to set upper limits on calculated emissions, and supports the development of process-based models. This article is about a summary of ancillary information collected from the representative swine finisher farm selected for study in the NAEMS project (Southeast Region). This ancillary information is then used to understand the flow of nutrients into and out of the swine barn. Attempts to understand the rate and quantity of inputs and outputs provide boundaries that help guide model development and evaluation.

갑상선질환의 세침흡인도말검사에서 질환별 특징적인 소견에 관한연구 : 유두상 암종과 다른 질환과의 비교를 중심으로

백운철,김성철,김태근,유숙,노정환,김태전 임상병리검사과학회 2002 임상병리검사과학회지 Vol.34 No.2

This study observed appearance existence and non-existence of nuclear groove, intranuclear pseudoinclusion, papillae, psammoma body, lymphocyte, multinucleated giant histiocyte and follicular structure that is a feature of cytologic change in FNAC of several thyroid nodules, and analyzed cytologic features of other thyroid diseases in comparison with papillary carcinoma of the thyroid The FNAC total in 103cases(Benign lesion 40cases, Neoplasm 22cases and Malignant lesion 41cases) through a Hematoxylin-eosin and Papanicolaou stain from cytomorphologic change by nodular lesions was observed and compared. The results were as follows. A papillary structure(88%) and psammoma body(24%) were observed in papillary carcinoma, and intranuclear pseudoinclusion was observed in papillary carcinoma(94%) and medullary carcinoma(29%), and nuclear grooves were observed in all nodular lesions(table 5). Appearance of lymphocytes was observed in all nodular lesions except hurthle cell tumor but appearance frequency was highly remarkable in grave's disease(l00%), hashimoto's thyroiditis(100%) and subacute thyroiditis(l00%). A multinucleated giant histiocyte was observed in subacute thyroiditis(l00%), papillary carcinoma(82%), adenomatous goiter(33%) and hashimoto's thyroiditis(26%) but expressed a high appearance frequency in subacute thyroiditis(Table5). A follicular structure was observed in all nodular lesions except hurthle cell tumor and sub acute thyroiditis but expressed a high appearance frequency in follicular neoplasm(l00%) and grave's disease(l00%) (Table 5). Conclusively, a papillary structure and psammoma body of cytologic features change showed papillary carcinoma in FNAC but it is considered when diagnosing papillary carcinoma because nuclear grooves and intranuclear pseudoinclusion can be observed in other nodular lesions.

주유소 공간의 재활용을 통한 퍼블릭 공원의 입체적 구성에 대한 고찰

정기백 경기대학교 건축전문대학원 2006 경기대학교 건축대학원 논문집 Vol.10 No.-

에너지 대체 산업 발달로 인하여 SK주유소의 입지는 점점 쇠퇴하고 있다. 더욱이 주유소 공간은 자동차를 이용할 수 있는 이용객에게만 한정되어 활용되고 있기 때문에 주유소 공간의 활용도는 발전을 하지 못하고 있다. 주유소 공간이 거듭나기 위하여 SK사업본부에서 제안하고 있는 주유소 유외 서비스사업(자동차 부품 및 점검소 24시 편의점 등)을 시작으로 서비스에 관한 다채적인 서비스 사업이 실행되고 있는 상태에서 과연 주유소는 어떤 공간으로 바뀌어져야 하고 어떠한 컨디션을 가져야만 하는가에 대한 관계성을 고찰해 본다. 본 논문은 향후 30년 후 주유소가 다른 대체 에너지로 바뀐다고 하고 현재 사용되는 주유소 부지에 SK사업부가 대체 사업으로 추진하려고 하는 전제하에 진행된다. 이 SK주유소 부지에 대한 대체 사업으로 사업성의 프로그램인 '아동 놀이 공간 디자인'이 포함되어지고 비사업성의 프로그램인 입체 공원의 프로그램이 행하여진다. 전체적인 컨셉 으로는 누구나 접근이 용이한 퍼블릭한 입체공원 개념으로 접근한다. 왜냐하면 주유소의 기본적 입지조건인 "접근성 용이"가 공원의 입지조건과 동일하기 때문이다. 이외 상업적 프로그램으로는 '아동 놀이 공간 디자인'이 삽입되어진다. 이 '아동 놀이공간 디자인'은 퍼블릭한 입체공원의 프로그램과 연결되어 일정시간에 지쳐버리는 기존의 공원과는 달리 공원에서 공간을 이용하며 공원 자체를 즐긴다고 하는 이벤트성이 강한 입체공원의 역할을 한다. 또한 현재 서울에 위치한 SK주유소 부지는 150개소로 활동 중이며 이 주유소들은 차츰 SK사업부에서 운용하게 되는 SK입체공원으로 그 성격이 변화하게 될 것이며 이 입체에 포함되는 '아동 놀이 공간 디자인'으로서 전문성을 띄게 된다. 이 '아동 놀이 공간 디자인'은 0세에서 12세로서 연령과 신체에 맞게 설계 되며 입체 공원 자체는 아동들에게 창의적 놀이 이벤트 공간으로 체험 될 것이다. With the development of the substitute energy industry the SK gas station's stand is gradually decreasing. Moreover, the gas station's space is just for the customers so the utility of the gas station's space is not developing. In the condition of that the process of reforming the gas stations' space with the service business (by establishing service station, utility store, etc.) this study will find out the way how the gas station should reform and have what condition. This essay based the theory of the replacement of gas station with substitute energy after 30 years and the SK management is proceeding the replacement of gas station's land. For the replacement business 'Space designing for the playground' is included for the business and three-dimensional park program is included for public service. The general concept of this replacement of business approaches with three-dimensional park. Because the "easy access place" is the fundamental condition of gas station which is same to the fundamental condition of park. Besides, this program with the purpose of profit 'Space designing for the playground' will be progressed. This 'Space designing for the playground' will be related to the public three-dimensional park project. So it will give the feelings that enjoying in the park rather than the place where people are exhausted within some amount of time. Also there are 150 gas stations as SK gas station's land of Seoul. These gas stations will be transforming its character to the SK three-dimensional park which SK management will operate. This three-dimension includes the 'Space designing for the playground' as the professional effects. This 'Space designing for the playground' will be designed for the children who aged between 0∼12 and the three-dimensional park will be experienced as space for creative playing event.

Optimum N Fertilization rate According to Ecotype by Rice Machine Transplanting at the Reclaimed Saline Land in Southwestern

Back Nam-Hyun,Ko Jong-Cheol,Choi Weon-Young,Nam Jeong-Kwon,Kim Sang-Su,Park Kwang-Geun,Kim Joung-Kwon,Jung Kwang-Yong 한국작물학회 2005 한국작물학회 학술발표대회 논문집 Vol.2005 No.-