• Title/Summary/Keyword: Comparative Research

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Landscape Quality Analysis which follows in Rural Villages Residential Gates Landscape Types Classification (농촌마을 주택대문 경관유형분류에 따른 경관특성분석 -충남 청양군 농촌마을을 대상으로-)

  • Lee, Gyeong-Jin;Cho, Soung-Ho;Song, Byeong-Hwa
    • Journal of Korean Society of Rural Planning
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    • v.14 no.1
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    • pp.33-41
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    • 2008
  • The main entrance is even disappeared nowadays when the component type is changed, because it loses the actual function. On the other hand, the type of main entrance is changed variously depended on the materials for house and method of construction. Eleven points in the Chungyang-Gun where the environment of rural villages is well maintained was choosed researched to make data. These data of visual component elements were analysed by using the SPSS 12.0 Windows. Cluster Analysis and Factor Analysis was performed to analyze the different types of main entrance in the rural villages. From the above research, we could conclude below results. Research result, The whole quality of the farming village gate with fine feeling and constant temperature characteristic order appeared with the fact that preference quality is highest, in afterwords was analyzed. Also the research which sees led and the result which appears from the landscape quality analysis which the residential gates are general and type by landscape quality analysis the result which appears with the comparative analysis overcomes the limit which the residential gates are general and type by landscape quality analysis the result which appears with the comparative analysis overcomes the limit which the abstractive landscape image has. Like this research result judges currently the research which is meaning which provides a planning standards and the guideline which the governmental department and the rural village improvement enterprising public opinion rural village residential enterprise which is propelling from oneself are detailed. Specially about landscape quality of the residential gate that presents a type classification and preference quality from the actual condition where the research is insufficient the hereafter rural village improvement enterprise specially, sees with the fact that will be the possibility of affecting is meaning to residential section the succeeding researches actively, there being could be advanced, wishes.

The Comparative Study on Decoctions of Ssanghwa-tang(Shuanghe-tang) Extracted by Different Extraction Conditions (전탕 조건에 따른 쌍화탕 전탕액 비교 연구)

  • Kim, Jung-Hoon;Seo, Chang-Seob;Shin, Hyeun-Kyoo
    • Herbal Formula Science
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    • v.18 no.2
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    • pp.125-134
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    • 2010
  • Objectives : This study was performed to compare the differences between decoctions extracted by different extraction conditions. Methods : Two different decoctions were prepared with pressured or non-pressured extraction conditions for 60, 120 and 180min. The yields of extracts, sugar contents, hydrogen ion concentrations(pH), the contents of reference compounds and individual preferences on Ssanghwa-tang(Shuanghe-tang) were investigated. Results : As extraction time increased, individual preferences for decoctions by pressured extraction tended to increase more than those by non-pressured extraction, and the yields and sugar contents of both decoctions showed the tendency of increase. The pH values of decoctions in pressured conditions were lower than those in non-pressured conditions in all extraction times and both extraction conditions showed decreasing pH values according to increase of extraction times. Of the reference compounds, paeoniflorin showed higher contents in non-pressured conditions than in pressured conditions and the contents of cinnamaldehyde were always lower in non-pressured conditions than in pressured conditions at all time. Conclusions : The decoctions of Ssanghwa-tang(Shuanghe-tang) extracted by pressured or non-pressured extraction for 60, 120, 180min exhibited different individual preferences, yields of extracts, sugar contents, pH, reference compounds contents.

Comparative Study of the Changes in LIS Education in Korea, U.S.A. and Australia (문헌정보학 교육의 변화에 관한 국가 간 비교 연구 - 한국.미국.호주를 중심으로 -)

  • Chang, Yun-Keum
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.22 no.4
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    • pp.317-340
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    • 2011
  • The objective of this study is to excavate the current critical issues and suggest the future direction of the Library and Information Sciences(LIS) education. To do so, this research conducted a thorough comparative study of LIS eduction in Korea, U.S.A., and Australia, and the extensive research of the iSchool(Information School) movement currently involving 33 universities all around the world started with the initiative in U.S.A. Specifically, the study investigated the changes and the essence of LIS education and research trends by reviewing and analyzing comparatively the prior domestic and overseas research. Then, it examined the current characteristics of the LIS curricula in Korea, U.S.A., and Australia and performed the inter-country analysis. Finally, the study concludes with suggestions of the future of the LIS education and research directions through an in-depth case research of the iSchool movement spreading out rapidly all over the world.

Comparative evaluation of the effectiveness of two innovative methods in the management of anxiety in a dental office: a randomized controlled trial

  • Panchal, Jay;Panda, Anup;Trivedi, Krishna;Chari, Deepika;Shah, Rushita;Parmar, Binny
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.22 no.4
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    • pp.295-304
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    • 2022
  • Background: The first dental experience is vital in molding a child's attitude towards dentistry and dental outcomes. The cooperation of a child during dental treatment is essential to render successful and high-quality treatment. Dental anxiety is common in children undergoing dental treatment. The success of pediatric dental treatments and patient comfort depends on controlling the levels of patient anxiety in clinical settings. This study aimed to compare the effectiveness of the recorded maternal voice and virtual cognitive tool (Roogies application) in the management of pediatric dental patients. Methods: The study was carried out with children aged of 4-7 years [n = 80, (40 male and 40 female)], without any past dental history, and were randomly allocated into two groups. After informed consent was obtained, the entire procedure was explained to the parents. Anxiety was assessed pre-, during, and post-treatment by measuring pulse rate, and recording Venham Picture Test (VPT) scores. Group A [n = 40; 20 boys and 20 girls)] was provided with a headphone that played a recorded maternal voice. Group B [n = 40; 20 boys and 20 girls)] was administered the virtual cognitive tool. After conditioning the children, oral prophylaxis was performed for both groups. A comparative evaluation was conducted for each treatment session. Results: The intra-group comparison of VPT scores and heart rate for patients assigned to the recorded maternal voice showed a statistically significant difference in dental anxiety (P-value ≤0.001). Conclusion: This study demonstrated that a reduction in dental anxiety with the help of recorded maternal voice forms an important component of non-pharmacological behavior management. Alternatively, the use of a virtual cognitive tool as an anxiety-reducing technique can also be advocated.

Histopathological evaluation of the lungs in experimental autoimmune encephalomyelitis

  • Sungmoo Hong;Jeongtae Kim;Kyungsook Jung;Meejung Ahn;Changjong Moon;Yoshihiro Nomura;Hiroshi Matsuda;Akane Tanaka;Hyohoon Jeong;Taekyun Shin
    • Journal of Veterinary Science
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    • v.25 no.3
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    • pp.35.1-35.13
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    • 2024
  • Importance: Experimental autoimmune encephalomyelitis (EAE) is an animal model of multiple sclerosis characterized by inflammation within the central nervous system. However, inflammation in non-neuronal tissues, including the lungs, has not been fully evaluated. Objective: This study evaluated the inflammatory response in lungs of EAE mice by immunohistochemistry and histochemistry. Methods: Eight adult C57BL/6 mice were injected with myelin oligodendrocyte glycoprotein35-55 to induce the EAE. Lungs and spinal cords were sampled from the experimental mice at the time of sacrifice and used for the western blotting, histochemistry, and immunohistochemistry. Results: Histopathological examination revealed inflammatory lesions in the lungs of EAE mice, characterized by infiltration of myeloperoxidase (MPO)- and galectin-3-positive cells, as determined by immunohistochemistry. Increased numbers of collagen fibers in the lungs of EAE mice were confirmed by histopathological analysis. Western blotting revealed significantly elevated level of osteopontin (OPN), cluster of differentiation 44 (CD44), MPO and galectin-3 in the lungs of EAE mice compared with normal controls (p < 0.05). Immunohistochemical analysis revealed both OPN and CD44 in ionized calcium-binding adapter molecule 1-positive macrophages within the lungs of EAE mice. Conclusions and Relevance: Taken together, these findings suggest that the increased OPN level in lungs of EAE mice led to inflammation; concurrent increases in proinflammatory factors (OPN and galectin-3) caused pulmonary impairment.

Exploring Dynamics of Information Systems Research Trend Using Text Mining Approach (텍스트 마이닝 기법을 이용한 정보시스템 분야 연구 동향 분석)

  • Jungkook An;Sodam Kim;Hee-Woong Kim
    • Information Systems Review
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    • v.18 no.3
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    • pp.73-96
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    • 2016
  • Recent research on information and communication technology and Internet-of-Things indicates that convergence and integration facilitate the development of various technologies. Similarly, related academic theories and technologies have also gained attention. This paradigm shift facilitated the convergence and integration of academic disciplines. In particular, information systems have become initiators of change. However, only a limited number of studies have been conducted on information systems. To address this gap, this study explores the future direction of information systems based on the core concepts and results of the comparative analysis conducted on research trends. We considered 48,102 data obtained from international top journals from 1980 to 2015. We analyzed journal titles, authors, abstracts, and keywords. We conducted the network analysis on existing collaborative studies and performed comparative analysis to visualize the results. The results provide an in-depth understanding of information systems and provides directions for future research on this area.

Fatigue Strength Assessment of A Longitudinal Hatch Coaming in a 3800 TEU Containership by ABS Dynamic Approach

  • Cui, Weicheng;Yang, Chunwen;Hu, Jiajun
    • Journal of Ship and Ocean Technology
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    • v.3 no.4
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    • pp.35-51
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    • 1999
  • Fatigue strength assessment procedures have been implemented in the ship design rules by many classification societies. However, a large variation tin the details of the different approaches exists in practically all aspects influding load history assessment, stress evaluation and fatigue strength assessment. In order to assess the influences of thesd variations on the prediction of fatigue lives. a comparative study is organized by the ISSC Committee III.2 Fatigue and Fracture. A pad detail on the top of longitudinal hatch coaming of a panamax container vessel is selected for fatigue calculation. The work described in this paper is one set of results of this comparative study in which the ABS dynamics approach is applied. Through this analysis the following conclusions can be drawn. (1) With the original ABS approach, the fatigue life of this pad detail is very low, only 2.398 years. (2) The treatment of the stillwater bending moment in the ABS approach might be a source of conservatism. If the influence of stillwater bending moment is ignored, then the fatigue life for this pad detail is 7.036 years. (3) The difference between the nominal stress approach and the hot spot stress approach for this pad detail is about 26%.

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Comparative assessment of surface and ground water quality using geoinformatics

  • Giridhar, M.V.S.S.;Mohan, Shyama;Kumar, D. Ajay
    • Advances in environmental research
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    • v.9 no.3
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    • pp.151-160
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    • 2020
  • Water quality demonstrates physical, chemical and biological characteristics of water. The quality of surface and groundwater is currently an important concern with population growth and industrialization. Over exploitation of water resources due to demand is causing the deterioration of surface water and ground water. Periodic water quality testing must be carried out to protect our water resources. The present research analyses the spatial variation of surface water and groundwater in and around the lakes of Hyderabad. Twenty-Seven lakes and their neighboring bore water samples are obtained for water quality monitoring. Samples are evaluated for specific physico-chemical parameters such as pH, Total Dissolved Solids (TDS), Cl, SO4, Na, K, Ca, Mg, and Total Hardness (TH). The spatial variation of water quality parameters for the 27 lakes and groundwater were analysed. Correlation and multiple regression analysis were carried out to determine comparative study of lake and ground water. The study found that most of the lakes were polluted and this had an impact on surrounding ground water.

Comparative Molecular Field Analysis of Dioxins and Dioxin-like Compounds

  • Ashek, Ali;Cho, Seung-Joo
    • Molecular & Cellular Toxicology
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    • v.1 no.3
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    • pp.157-163
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    • 2005
  • Because of their widespread occurrence and substantial biological activity, halogenated aromatic hydrocarbons are one of the important classes of contaminants in the environment. We have performed comparative molecular field analysis (CoMFA) on structurally diverse ligands of Ah (dioxin) receptor to explore the physico-chemical requirements for binding. All CoMFA models have given $q^{2}$ value of more than 0.5 and $r^{2}$ value of more than 0.83. The predictive ability of the models was validated by an external test set, which gave satisfactory predictive $r^{2}$ values. Best predictions were obtained with CoMFA model of combined modified training set ($q^{2}=0.631,\;r^{2}=0.900$), giving predictive residual value = 0.002 log unit for the test compound. We have suggested a model comprises of four structurally different compounds, which offers a good predictability for various ligands. Our QSAR model is consistent with all previously established QSAR models with less structurally diverse ligands. The implications of the CoMFA/QSAR model presented herein are explored with respect to quantitative hazard identification of potential toxicants.

Comparative Evaluation of Fibrin for Bone Regeneration in Critical Size Calvarial Defects

  • Song, Gin-Ah;Kim, Soung Min;Woo, Kyung Mi
    • International Journal of Oral Biology
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    • v.39 no.3
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    • pp.153-157
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    • 2014
  • Natural biopolymers such as collagen and fibrin have been widely used in bone regenerative applications. Despite the frequent use, their comparative biological propertiesis are largely unknown. In a previous study, we found the superiority of fibrin to collagen in the adsorption of serum proteins and the proliferation and differentiation of cultured osteoblasts. In this study, we used an in vivo model to evaluate how effectively fibrin supports bone regeneration, as compared with collagen. Collagen and fibrin were placed in critical size defects made on rat calvarial bones. Compared with collagen, fibrin supported substantially more new bone tissue formation, which was confirmed by micro-CT measurement and histological analyses. The cells in the regenerative tissues of the fibrin-filled defects were immunostained strongly for Runx2, while collagen-placed defects were stained weakly. These in vivo results demonstrate that fibrin is superior to collagen in supporting bone regeneration.