• Title/Summary/Keyword: functional analysis

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Predictors of 30-Day Mortality and 90-Day Functional Recovery after Primary Intracerebral Hemorrhage : Hospital Based Multivariate Analysis in 585 Patients

  • Kim, Kyu-Hong
    • Journal of Korean Neurosurgical Society
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    • v.45 no.6
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    • pp.341-349
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    • 2009
  • Objective : The purpose of this study was to identify independent predictors of mortality and functional recovery in patients with primary intracerebral hemorrhage (PICH) and to improve functional outcome in these patients. Methods : Data were collected retrospectively on 585 patients with supratentorial PICH admitted to the Stroke Unit at our hospital between 1st January 2004 and the 31st July 2008. Using multivariate logistic regression analysis, the associations between all selected variables and 30-day mortality and 90-day functional recoveries after PICH was evaluated. Results : Ninety-day functional recovery was achieved in 29.1% of the 585 patients and 30-day mortality in 15.9%. Age (OR=7.384, p=0.000), limb weakness (OR=6.927, p=0.000), and hematoma volume (OR=5.293, p=0.000) were found to be powerful predictors of 90-day functional recovery. Furthermore, initial consciousness (OR=3.013, p=0.014) hematoma location (lobar, OR=2.653, p=0.003), ventricular extension of blood (OR=2.077, p=0.013), leukocytosis (OR=2.048, p=0.008), alcohol intake (drinker, OR=1.927, p=0.023), and increased serum aminotransferase (OR=1.892, p=0.035) were found to be independent predictors of 90-day functional recovery after PICH. On the other hand, a pupillary abnormality (OR=4.532, p=0.000) and initial unconsciousness (OR=3.362, p=0.000) were found to be independent predictors of 30-day mortality after PICH. Conclusion : The predictors of mortality and functional recovery after PICH identified during this analysis may assist during clinical decision-making, when advising patients or family members about the prognosis of PICH and when planning intervention trials.

Long-term Energy Demand Forecast in Korea Using Functional Principal Component Analysis (함수 주성분 분석을 이용한 한국의 장기 에너지 수요예측)

  • Choi, Yongok;Yang, Hyunjin
    • Environmental and Resource Economics Review
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    • v.28 no.3
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    • pp.437-465
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    • 2019
  • In this study, we propose a new method to forecast long-term energy demand in Korea. Based on Chang et al. (2016), which models the time varying long-run relationship between electricity demand and GDP with a function coefficient panel model, we design several schemes to retain objectivity of the forecasting model. First, we select the bandwidth parameters for the income coefficient based on the out-of-sample forecasting performance. Second, we extend the income coefficient using the functional principal component analysis method. Third, we proposed a method to reflect the elasticity change patterns inherent in Korea. In the empirical analysis part, we forecasts the long-term energy demand in Korea using the proposed method to show that the proposed method generates more stable long term forecasts than the existing methods.

Management Plan for the Assessment, Standardization, and Authentication of Functional Animal Products (국내 기능성 축산식품의 기능성 물질(성분) 분석기준 확립 및 인증·표시 등 세부관리기준에 관한 연구)

  • Lee, Jamin;Lee, Jin;Park, Jung-Min;Kim, Jin Man;Kim, Sae Hun
    • Journal of Dairy Science and Biotechnology
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    • v.32 no.1
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    • pp.55-62
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    • 2014
  • This study aims to suggest a management system consisting of functional ingredients by establishing guidelines for the analysis of functional animal products in Korea. Further, the guidelines can be used for validity tests of functional animal products. In addition, we can standardize the management system for details, and frame new laws for functional animal products. We researched the current studies on the analysis and assessment of functional foods, and established standard methods of analysis. We devised new analysis and assessment techniques to determine the efficacy and safety of functional ingredients for the legislation and management of functional animal products. This study may contribute to not only the safety and quality of functional animal products but also to enhancing the nation's health and the national image as being health-oriented, through improvements in the productivity and quality of functional animal products.

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The Effect of Well-being Lifestyle and Functional Textile Knowledge on the Perception of High Functional Sports/Leisure Wear Importance (웰빙 라이프스타일과 기능성 섬유에 대한 지식이 고기능성 스포츠레저웨어의 중요도 지각에 미치는 영향)

  • Chung, Ihn-Hee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.33 no.9
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    • pp.1495-1505
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    • 2009
  • This study analyzes how well-being lifestyle and functional textile knowledge effect the perception of high functional sports/leisure wear importance. A survey was conducted among male and female sports/leisure wear consumers aged 15 and over in the Daegu and Gyeongbuk area from May $12^{th}$ to June $2^{nd}$ 2009. A total of 288 responses were analyzed using descriptive statistics, factor analysis, and regression. As a result, 9 factors were determined as sub-elements of a well-being lifestyle. Knowledge levels for functional textiles were high in elastic, UV blocking, air permeable, and antibacterial properties. The perception of high functional sports/leisure wear importance was positively influenced by functional textile knowledge and two well-being lifestyle constructing factors ('self-confidence/affirmative thinking' and 'health/environment oriented eating habits').

The Biomechanical Comparison of Running Shoes According to the Difference of Insole (인솔 차이에 따른 런닝화의 운동역학적 비교)

  • Jin, Young-Wan;Shin, Sung-Hwon
    • Korean Journal of Applied Biomechanics
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    • v.17 no.2
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    • pp.51-59
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    • 2007
  • These studies show that I applied to functional insole (a specific A company) for minimizing shocks and sprain people's ankle arising from running. How to an effect on human body which studied a kinematics and kinetics from 10 college students during experiments. This study imposes several conditions by barefoot, normal running shoes and put functional insole shoes ran under average $2.0{\pm}0.24\;m$/sec by motion analysis and ground reaction force that used to specific A company. First of all, motion analysis was caused by achilles tendon angle, angle of the lower leg, angle of the knee, initial sole angle and barefoot angle. The result of comparative analysis can be summarized as below. Motion analysis showed that statically approximates other results from achilles tendon angle (p<.01), initial ankle angle(p<.05), initial sole angle(p<.001) and barefoot angle(p<.001). Ground reaction force also showed that statically approximates other results from impact peak timing (p<.001), Maximum loading rate(p<.001), Maximum loading rate timing (p<.001) and impulse of first 20 percent (p<.001). Above experiment values known that there was statically difference between Motion analysis and Ground reaction force under absorbing of the functional insole shoes which was not have an effect on our body for kinetics and kinematics.

Algorithms for Causality Evaluation of Adverse Events from Health/Functional Foods (건강기능식품 부작용 원인분석을 위한 알고리즘)

  • Lee, Kyung-Jin;Park, Kyoung-Sik;Kim, Jeong-Hun;Lee, Young-Joo;Yoon, Tae-Hyung;No, Ki-Mi;Park, Mi-Sun;Leem, Dong-Gil;Yoon, Chang-Yong;Jeong, Ja-Young
    • Journal of Food Hygiene and Safety
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    • v.26 no.4
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    • pp.302-307
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    • 2011
  • One of the most important objectives of post-marketing monitoring of dietary supplements is the early detection of unknown and unexpected adverse events (AEs). Several causality algorithms, such as the Naranjo scale, the RUCAM scale, and the M & V scale are available for the estimation of the likelihood of causation between a product and an AE. Based on the existing algorithms, the Korea Food & Drug Administration has developed a new algorithm tool to reflect the characteristics of dietary supplements in the causality analysis. However, additional work will be required to confirm if the newly developed algorithm tool has reasonable sensitivity and not to generate an unacceptable number of false positives signals.

The Effect of Motor Ability in Children with Cerebral Palsy on Mastery Motivation (뇌성마비 아동의 신체기능이 완수동기에 미치는 영향)

  • Lee, Na-Jung;Oh, Tae-Young
    • The Journal of Korean Physical Therapy
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    • v.26 no.5
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    • pp.315-323
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    • 2014
  • Purpose: This study was conducted in order to investigate the effect of motor ability on mastery motivation in children with cerebral palsy. Methods: Sixty children with cerebral palsy (5~12 years) and their parents participated in the study. Data on general characteristics and disability condition, Gross Motor Functional Classification System, Manual Ability Classification System, and The Dimensions of Mastery questionnaire were collected for this study. Independent t-test, and ANOVA were used for analysis of the effect of The Dimensions of Mastery questionnaire according to general and disability condition, Gross Motor Functional Classification System, and Manual Ability Classification System. Linear regression analysis was performed to determine the effects of Gross Motor Functional Classification System and Manual Ability Classification System on The Dimensions of Mastery questionnaire. SPSS win. 22.0 was used and Tukey was used for post hoc analysis, level of statistical significance was less than 0.05. Results: The Dimensions of Mastery questionnaire score showed statistically significant difference according to gender, region, type, disability rating, Gross Motor Functional Classification System, and Manual Ability Classification System (p<0.05). Gross Motor Functional Classification System and Manual Ability Classification System were the effect factor on The Dimensions of Mastery questionnaire significantly (p<0.05). Conclusion: These results suggest that motor ability of children with cerebral palsy was an important factor having an effect on The Dimensions of Mastery questionnaire.

A Study of Gastrointestinal Parasympathetic Nerve Activity and Pyloric Valve Function, and Clinical Characteristerics in Patients with Functional Dyspepsia - Analysis of Bowel Sound (기능성 소화불량증 환자의 위장관 부교감 신경, 위 유문부의 기능 및 임상양상에 대한 조사 (한방병원 내원 환자를 중심으로))

  • Hong, In-A;Yoon, Sang-Hyuh
    • The Journal of Internal Korean Medicine
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    • v.29 no.3
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    • pp.666-674
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    • 2008
  • Objectives : The aim of this study was to evaluate gastrointestinal parasympathetic nerve activation and pyloric valve function in patients with functional dyspepsia through analysis of bowel sounds and to investigate clinical characteristics associated with the parameters of bowel sounds. Method : We surveyed clinical characteristics of patients by using a questionnaire about functional dyspepsia. Bowel sounds were recorded for 15 minutes during fasting state and for 40 minutes during postprandial state. We then classified the patients into 3 groups by abnormal states of bowel sounds, specifically by the percentage of B.S. and dominenet frequency, and studied clinical characteristics in each group. Results : Among the 182 subjects, patients who had low activity of parasympathetic nerve were 25.8% and showed a tendency of female-dominant, family history and more frequent abdominal pain. Those who had pyloric valve disturbance were 24.1% and showed no tendency by sex distribution, family history and complained of indigestion sensation. Patients who had both disorders were 10.9%, and their clinical characteristics were non-specific. Conclusion : Analysis of bowel sounds may be useful in evaluating pathophysiological factors of functional dyspepsia.

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