• 제목/요약/키워드: group contribution methods

검색결과 154건 처리시간 0.03초

청상보하탕의 기관지 천식 환자에 대한 임상적 효과 (Clinical Effects of Chuongsangboha-tang in Asthmatic Patients)

  • 정승기;황우석;주창엽;이재성;조일현;정희재
    • 대한한의학회지
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    • 제23권4호
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    • pp.151-160
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    • 2002
  • Background: Nowadays asthma is considered to be an inflammatory disease characterized by airway hyperresponsiveness and pulmonary eosinophilia. Production of cytokines by bronchial epithelial cells may contribution to the local accumulation of inflammatory cells in patients with bronchial asthma. In many recent studies molecular biological methods have been used to investigate the role of cytokines in pathogenesis and new therapeutic targets of asthma. Objectives: We aimed to identify the clinical effects of Chuongsangboha-tang and the effects of Chuongsangboha-tang on serum cytokines in asthmatic patients. Materials and Methods: The subjects consisted of 36 patients with asthma who had been treated with Chuongsangboha-tang for four weeks. Chuongsangboha-tang is an herbal decoction which has been used of the traditional therapeutic agent of asthma. PFT, Quality of Life Questionnaire for Adult Korean Asthmatics (QLQAKA), blood eosinophil, serum IgE, Serum IL-4, IL-5, IFN- were checked before and 4 weeks after treatments. Results: Treatment with Chuongsangboha-tang for four weeks resulted in significant increase in FEV1.0%, PEFR%, QLQAKA. The blood eosinophil, serum IgE, IL-4 and IL-5 in asthmatic patients increased significantly compared to the normal control group, while the serum IFN-decreased significantly. Conclusions: This study shows that Chuongsangboha-tang has effects on improvement of pulmonary function and quality of life in asthmatic patients. Obviously, further research concerning this is still necessary.

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유기물의 인화점 예측을 위한 부분최소자승법과 SVM의 비교 (Comparison of Partial Least Squares and Support Vector Machine for the Flash Point Prediction of Organic Compounds)

  • 이창준;고재욱;이기백
    • Korean Chemical Engineering Research
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    • 제48권6호
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    • pp.717-724
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    • 2010
  • 액체의 화재 및 폭발위험을 나타내는 가장 중요한 물성의 하나인 인화점의 실험 데이터는 그 필요에도 불구하고 실제로 데이터를 확보하는 것이 가능하지 않은 경우가 많다. 이 연구에서는 DIPPR 801에서 얻은 893개 유기물의 인화점 실험데이터로부터 인화점을 예측하는 부분최소자승법(PLS) 및 support vector machine(SVM) 모델을 만들고 비교하였다. 분자를 구성하는 각 구성요소들이 분자의 물성에 일정한 기여를 한다는 가정을 이용하여 분자의 물성을 예측하는 방법인 그룹기여법을 이용하여 65개 작용기가 이 예측모델의 독립변수가 되었고 분자량의 로그값이 추가되었다. 두 모델에서 결정해야 할 매개변수는 교차검증에서 계산된 오차를 이용하여 결정되었는데, SVM모델은 그 매개변수가 많아 particle swarm optimization을 이용한 최적화를 이용하였다. 훈련데이터의 선택이 예측성능에 영향을 줄 수 있어 임의로 100개의 데이터 세트를 생성하여 테스트하였다. 전체 데이터에 대해 계산된 평균절대오차는 PLS가 13.86~14.55였고, SVM이 7.44~10.26여서 SVM이 PLS에 비해 매우 우수한 예측성능을 보였다.

척추경막외 병용마취시 경막외강으로 주입된 생리식염수와 부피바카인의 감각차단 범위에 대한 효과 (Effects of Saline and Bupivacaine for Epidural Top-up on Sensory Blockade Level during Combined Spinal Epidural Anesthesia)

  • 김동연;한종인
    • The Korean Journal of Pain
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    • 제13권1호
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    • pp.84-88
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    • 2000
  • Background: An increase in the maximum level of sensory blockade (MLSB) following an epidural top-up in combined spinal epidural anesthesia (CSE) may be achieved by a volume effect as the volume of local anesthetic compresses the dural sac, by a local anesthetic effect, or by a combination of both effects. This study was conducted to investigate the contribution of each of these effects. Methods: Sixty patients scheduled for lower limb surgery under CSE were randomly allocated to one of three groups of twenty patients each. Using the needle-through needle technique, all patients received a subarachnoid dose of 10 mg hyperbaric 0.5% bupivacaine. At 30 min after subarachnoid injection, an epidural top-up with saline 10 ml (group II) or 0.5% bupivacaine 10 ml (group III) was administered; patients in group I received no epidural top-up. The level of sensory blockade was assessed at 5, 10, 15, 20, 25, 30 min after subarachnoid injection and at 5, 10, 15, 20, 25, 30 min after epidural top-up. Results: There was no significant difference in the MLSB and the onset time of MLSB among group I-III. Conclusions: We concluded that the epidural top-up with saline 10 ml or 0.5% bupivacaine 10 ml which injected at 30 min after subarachnoid injection did not significantly increase the level of subarachnoid block in lower extremity surgical patients.

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치매예방 통합프로그램이 경증인지 장애노인의 인지기능, 우울, 자아 존중감 및 삶의 질에 미치는 효과 (The Effects of Dementia Prevention Program on Cognition, Depression, Self-esteem and Quality of life in the Elderly with Mild Cognitive Disorder)

  • 이윤미;박남희
    • 성인간호학회지
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    • 제19권5호
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    • pp.104-114
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    • 2007
  • Purpose: This study was conducted to develop and evaluate a dementia prevention intervention program for the elderly with mild cognitive disorder. Methods: The study was nonequivalent control group pretest-posttest design. The subjects of the study were a total of 68 elderly who ranged from 21 to 24 of total scores of K-MMSE, aged over 65, in home. The program consisted of music therapy, humor therapy, art therapy, dancing therapy, recreation, and health education to enhance brain function. The program was applied to the experimental group twice a week, ninety minutes per session for eight weeks. The data were analysed by using chi-square test and t-test. Results: The variables measured in the experimental group and the control group before the intervention were not significantly different in the homogeneity test. The dementia prevention program improved the cognition(t=9.243, p<.001), self-esteem(t=.4.336, p<.001), quality of life(t=8.375, p<.001) and reduced depression(t=-3.913, p<.001). Conclusion: These findings confirmed that the dementia prevention program made a contribution to improving cognitive function, self-esteem, and quality of life and also to reduce depression in the elderly with mild cognition disorder. Therefore, it is recommended that this program could be used in clinical practice as an effective nursing intervention for the elderly with mild cognitive disorder.

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양극성 장애 환자에서 나타나는 식욕 및 섭식 행동의 특성 : 일반적 음식갈망-특질척도(G-FCQ-T)와 약물 관련 섭식행동 설문지(DR-EBQ)를 이용한 평가 (Changes of Appetite and Eating Behavior in Bipolar Disorder Patients : Measurement with General-Food Craving Questionnaire-Trait and the Drug-Related Eating Behavior Questionnaire)

  • 이선이;류승형;고효정;홍경수;남희정
    • 생물정신의학
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    • 제18권4호
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    • pp.245-253
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    • 2011
  • Objectives In the current study, we quantitatively estimated changes in appetite and eating behavior of bipolar disorder patients during the pharmacotherapy. We also investigated their contribution to the weight gain and their association with specific food-craving characteristics of the patients. Methods Subjects included forty-one bipolar disorder patients and fifty-six controls. Currently sustained natures of food craving were assessed using the General-Food Craving Questionnaire-Trait (G-FCQ-T) and changes in appetite and eating behavior were measured using the Drug-Related Eating Behavior Questionnaire (DR-EBQ). Results Compared to the control group, the patients' group showed significantly higher body mass index (t=2.028, p=0.045). The patients' group had significantly higher 'Preoccupation with food' factor score of G-FCQ-T (p=0.016) than that of the control group. Hierarchical multiple regression analysis showed that only 'preoccupation with food' factor independently predicted psychotropic medication-induced appetite change. Conclusions Appetite change while receiving psychotropic medication seems to be related to the weight-gain and associated with craving natures of 'preoccupation with food' in bipolar disorder. Appetite and/or eating behavioral changes measured by G-FCQ-T and DR-EBQ could be regarded as an important mediating factor in future studies exploring biological mechanisms of weight gain related with pharmacotherapy for bipolar disorder.

오타고운동 기반 낙상예방교육활동이 아급성 뇌졸중 환자의 균형, 낙상 효능감 및 일상생활동작능력에 미치는 영향: 무작위 대조군 임상 연구 (The effect of otago exercise-based fall prevention education activities on balance, fall efficacy and activities of daily living in the subacute stroke patients: A randomized controlled clinical trial)

  • 윤현식;한규범;오승인;이다비;송하희;송정은;차영주
    • 대한물리치료과학회지
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    • 제27권1호
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    • pp.1-8
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    • 2020
  • Background: This study analysed the effect of the fall prevention education activities on balance, fall efficacy, activities of daily living (ADL) of sub-acute stroke patients. Design: Randomized controlled trial. Methods: The subjects of the study were 24 subacute patients, who have onset period of less than 6 months. They are randomly allocated in the conventional therapy group (n=12) and fall prevention education group (n=12) and observed with frequency for 5 times a week for four weeks. Measuring took place before and after the experiment leading to following results of the Fall efficacy scale (FES), Berg balance scale (BBS) and Functional Independence Measure (FIM). Results: FES, BBS and FIM score was significantly greater in the post-test than in the pre-test in both groups (p<0.01). Independent t-test confirmed that the fall prevention education group showed much greater improvement change in the FES, BBS and FIM score than conventional therapy group (p<0.05). Conclusion: The present study demonstrated the importance of clinical contribution of the fall prevention education in the individuals with subacute stroke patients to the balance, fall efficacy and ADL following the stroke rehabilitation.

Physico-chemical properties of green leaf volatiles (GLV) for ascertaining atmospheric fate and transport in fog

  • Vempati, Harsha;Vaitilingom, Mickael;Zhang, Zenghui;Liyana-Arachchi, Thilanga P.;Stevens, Christopher S.;Hung, Francisco R.;Valsaraj, Kalliat T.
    • Advances in environmental research
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    • 제7권2호
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    • pp.139-159
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    • 2018
  • Green Leaf Volatiles (GLVs) is a class of biogenically emitted oxygenated hydrocarbons that have been identified as a potential source of Secondary Organic Aerosols (SOA) via aqueous oxidation. The physico-chemical properties of GLVs are vital to understanding their fate and transport in the atmosphere via fog processing, but few experimental data are available. We studied the aqueous solubility, 1-octanol/water partition coefficient, and Henry's law constant ($K_H$) of five GLVs at $25^{\circ}C$: methyl jasmonate, methyl salicylate, 2-methyl-3-buten-2-ol, cis-3-hexen-1-ol, and cis-3-hexenyl acetate. Henry's law constant was also measured at temperatures and ionic strengths typical of fog. Experimental values are compared to scarcely-available literature values, as well as estimations using group and bond contribution methods, property-specific correlations and molecular dynamics simulations. From these values, the partition coefficients to the air-water interface were also calculated. The large Henry's law constant of methyl jasmonate ($8091{\pm}1121M{\cdot}atm^{-1}$) made it the most significant GLV for aqueous phase photochemistry. The HENRYWIN program's bond contribution method from the Estimation Programs Interface Suite (EPI Suite) produced the best estimate of the Henry's constant for GLVs. Estimations of 1-octanol/water partition coefficient and solubility are best when correlating an experimental value of one to find the other. Finally, the scavenging efficiency was calculated for each GLV indicating aqueous phase processing will be most important for methyl jasmonate.

국가 R&D 보고서 원문의 활용성과 및 경제적 기여도 분석 (Outcome Measurement and Degree of Economic Contribution for the National R&D Reports)

  • 곽승진;최재황;김정택;박용재;최기석
    • 한국문헌정보학회지
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    • 제49권1호
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    • pp.113-128
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    • 2015
  • 주요 선진국은 공공정보 개방과 재활용의 중요성을 인식하고, 공공정보를 원활하게 제공하고 활용할 수 있도록 촉진하는 정책적 방안을 모색하고 있다. 우리나라의 경우, 국가 차원의 R&D 사업과 성과물의 양적 증가에도 불구하고 현재까지 성과활용 실적은 여전히 낮은 편으로, 연구 성과물에 대한 실질적인 활용분석 및 경제적 기여도 분석 노력이 시급한 상황이다. 본 연구의 목적은 국가 R&D 보고서 원문의 활용도와 경제적 기여도를 분석하는데 있다. 본 연구의 목적을 위해 문헌조사, 설문조사, 포커스 그룹 인터뷰, 전문가 자문 등 정량적인 방법과 정성적인 방법을 병행하였다.

일당귀 에탄올 추출물의 Hyaluronic Acid 합성 효과에 대한 실험적 연구 (An Experimental Study on the Effect of Angelica acutiloba Ethanol Extract on Hyaluronic Acid Synthesis)

  • 강민서;하헌용;김희택
    • 한방안이비인후피부과학회지
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    • 제28권1호
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    • pp.32-40
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    • 2015
  • Objectives : Hyaluronic acid(HA) is a mucopolysaccharide, occuring naturally in living organisms. It is one of the most hydrophilic molecules, so it has been known as being related to skin hydration and anti-aging. The purpose of this study is to examine the effects of Angelica acutiloba ethanol extract on hyaluronic acid synthesis. Methods : To determine cytotoxicity and hyaluronic acid synthase 2 gene expression, hyaluronic acid production in HaCaT cells, MTT assay and RT-PCR ELISA was used. Results : There was no cytotoxicity in $50{\mu}g/ml$ concentration Angelica acutiloba extract in MTT assay. Hyaluronic acid synthase 2(HAS2) gene expression was increased by all treated concentration Angelica acutiloba extract. Hyaluronic acid production was higher in $50{\mu}g/ml$ & $100{\mu}g/ml$ concentration Angelica acutiloba extract than control group. Conclusions : Hyaluronic acid production was increased by Angelica Acutiloba extracts. Therefore, We suggest that Angelica acutiloba can make a contribution to the moisturing effect on human skin. Conclusions : Hyaluronic acid production was increased by Angelica Acutiloba extracts. Therefore, We suggest that Angelica acutiloba can make a contribution to the moisturing effect on human skin.

음식의 1인1회 분량을 적용한 청소년의 권장식사패턴 고안 (Revision of the Target Pattern based on Single Serving Size of Dishes for Korean Adolescent Meal Plan)

  • 박미진;김영남
    • 대한지역사회영양학회지
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    • 제20권1호
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    • pp.21-29
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    • 2015
  • Objectives: Maintaining a balanced diet is very crucial for adolescents. However, adolescents, who may have a short notion about the amount of food, find it difficult to plan daily meals by applying the target pattern proposed by the Korean Nutrition Society. This study was carried out to revise the target pattern based on cooked dishes instead of raw material food groups as an easier way for Korean adolescents to plan their meals. Methods: Target pattern for Korean adolescents were revised based on the following: $1^{st}$, categorize dish groups, $2^{nd}$, calculate representative values of each dish based on the adolescent' intake amount. $3^{rd}$, assign the recommended number of intake for each dish. Validity of the target pattern for Korean adolescent meal plan was examined by the energy content, energy contribution ratio, and NAR & INQ of nutrients. Results: The 11 dish groups categorized were bab; gook tang gigae; side dishes of meat, fish, egg, legume, kimchi, vegetable, seaweed; and between meal of fruit, and milk dairy product. Based on the representative energy values, recommended number of intake were assigned to each dish. For boys, bab and gook tang gigae: 3 each; meat, fish, egg, and legume: 1 each; kimchi and vegetable: 3 each; seaweed: 1; fruit and milk dairy product: 2 each were assigned. For girls, bab and gook tang gigae: 2 each; meat, fish, egg, and legume: choice of 3 dishes, 1 each; kimchi and vegetable: 3 each; seaweed: 1; fruit and milk dairy product: 2 each were assigned. Energy contents, energy contribution ratio of carbohydrate, protein, and fat for boys and girls were in adequate range. The NARs were 1.0 and INQs were ${\geq}1.0$ for all nutrients examined. Conclusions: Revised dish-based, instead of food-based adolescent target patterns for boys and girls were easier and a valid way of Korean adolescent meal planning.