Showing 941 - 960 results of 1,228 for search '"principal component analysis"', query time: 0.08s Refine Results
  1. 941

    Computational Study Protocol: Leveraging Synthetic Data to Validate a Benchmark Study for Differential Abundance Tests for 16S Microbiome Sequencing Data [version 2; peer review: 2... by Clemens Kreutz, Eva Kohnert

    Published 2025-01-01
    “…Equivalence tests will be conducted on a non-redundant subset of 46 data characteristics comparing synthetic and experimental data, complemented by principal component analysis for overall similarity assessment. …”
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    Article
  2. 942
  3. 943

    Study on the Fingerprint Spectrum and the Spectrum-Effect Relationship of Analgesic and Anti-Inflammatory Effects of the Aqueous Extract from Dalbergia hancai Benth by Qin Qiu, Xiaofang Liu, Chunying Huang, Yanling Guo, Dandan Zhen, Junhao Shi, Baojun Gu, Hanshen Zhen, Miao Zhang

    Published 2023-01-01
    “…At the same time, similarity evaluation, cluster analysis, and principal component analysis (PCA) had also been conducted to evaluate the common peaks. …”
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    Article
  4. 944

    Agro-Morphological Characterization of Kenyan Slender Leaf (Crotalaria brevidens and C. ochroleuca) Accessions by Fridah A. Mwakha, Bernard M. Gichimu, Johnstone O. Neondo, Peter K. Kamau, Eddy O. Odari, Joshua K. Muli, Nancy L. M. Budambula

    Published 2020-01-01
    “…Both qualitative and quantitative data were subjected to multivariate cluster analysis, and a dendrogram was constructed using the unweighted pair-group method with arithmetic average. The principal component analysis was conducted to obtain information on the importance of the characters. …”
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    Article
  5. 945

    Determination of Flavanones in Orange Juices Obtained from Different Sources by HPLC/DAD by Lidércia C. R. Cerqueira e Silva, Jorge M. David, Rafael dos S. Q. Borges, Sérgio L. C. Ferreira, Juceni P. David, Pedro S. dos Reis, Roy E. Bruns

    Published 2014-01-01
    “…The results were also evaluated using the principal component analysis (PCA) multivariate analysis technique which showed that poncirin, naringenin, and naringin were the principal elements that contributed to the variability in the sample concentrations.…”
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    Article
  6. 946

    Physicochemical characteristics and trophic state evaluation of post glacial mountain lake using multivariate analysis by S. Nayek, S. Gupta, K.K. Pobi

    Published 2018-10-01
    “…Application of multivariate tools such as cluster analysis and principal component analysis reveals that ionic constituents of lake water are majorly associated to the geogenic and exogenic factors, with minor seasonal influences. …”
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    Article
  7. 947

    Perceived costs and benefits of companion dog keeping based on a convenience sample of dog owners by Laura Gillet, Borbála Turcsán, Eniko Kubinyi

    Published 2025-01-01
    “…In the quantitative data, principal component analysis revealed three core components of the dog ownership experience: (1) emotional, physical, and social benefits, (2) negative emotions and practical challenges, and (3) time and emotional commitment. …”
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    Article
  8. 948

    Estimation of Individual Tree Structure and Wood Density Parameters for <i>Ginkgo biloba</i> Using Terrestrial LiDAR and Resistance Drill Data by Ting Li, Xin Shen, Kai Zhou, Lin Cao

    Published 2024-12-01
    “…A wood density prediction model was constructed using principal component analysis based on the resistance, diameter, tree height, and crown width. …”
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    Article
  9. 949

    A Rapid and Nondestructive Quality Detection Approach for Yongchuan Xiuya Tea Based on NIRS and siPLS-ANN Method by Ying Zhang, Jie Wang, Xiuhong Wu, Rui Chang, Hongyu Luo, Juan Yang, Quan Wu, Ze Xu, Yingfu Zhong

    Published 2025-01-01
    “…Through preprocessing the spectral data and employing the synergy interval partial least squares (siPLS) method to identify characteristic spectral regions, principal component analysis (PCA) is applied, followed by the development of a Jordan–Elman artificial neural network prediction model (ANN) for tea quality assessment. …”
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    Article
  10. 950

    Comprehensive Metabolomic Profiling in Adults with X-Linked Hypophosphatemia: A Case-Control Study by Luis Carlos López-Romero, José Jesús Broseta, Marta Roca-Marugán, Noemí Máñez Ramírez, Julio Hernández-Jaras

    Published 2024-12-01
    “…We employed multivariate statistical models, including a principal component analysis (PCA) and an orthogonal partial least squares discriminant analysis (OPLS-DA) regression model. …”
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    Article
  11. 951

    Metropolitan construction carbon emission efficiency: an integrative static-dynamic analytical framework by Jianing Hu, Wanxiang Yao, Gangwei Cai, Qinfeng Zhao, Chanjuan Wang, Tongyu Xu, Chunyan Shi, Weijun Gao

    Published 2025-01-01
    “…The Malmquist-Luenberger index model, multiple non-linear regression model, and principal component analysis were used to research the driving factors dynamically. …”
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    Article
  12. 952

    Comparative Investigation of Untargeted and Targeted Metabolomics in Turmeric Dietary Supplements and Rhizomes by Jashbir Singh, Fakir Shahidullah Tareq, Devanand L. Luthria

    Published 2024-12-01
    “…Initial screening with infrared and ultraviolet–visible spectroscopy coupled with a principal component analysis (PCA) revealed distinct differences between the samples analyzed. …”
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    Article
  13. 953

    Determinants of the Sensory Quality of Półgęsek in Relation to Volatile Compounds and Chemical Composition by Nowicka Katarzyna, Jaworska Danuta, Przybylski Wiesław, Górska Ewa, Tambor Krzysztof, Półtorak Andrzej

    Published 2017-12-01
    “…Results of the Principal Component Analysis (PCA) showed, however, that specific groups of products have their own unique sensory profile. …”
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    Article
  14. 954

    Quality Evaluation of Bioactive Ingredients in Lianhua Qingwen Capsule Based on Quantitative Analysis of Multicomponent by the Single Marker Method and the Chemical Recognition Pat... by Qianqian Zhou, Lin Yang, Yiwu Wang, Jiajia Zou, Shuya Li, Lei Dai, Yan Li, Dan He

    Published 2023-01-01
    “…Radar plot analysis and principal component analysis (PCA) found some quality differences existed between the three groups of samples. …”
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    Article
  15. 955

    Study of Interactions Between Individual Phenolics of Aronia with Barley Beta-Glucan by Lidija Jakobek, Petra Matić, Jozo Ištuk, Andrew R. Barron

    Published 2021-05-01
    “…The suggested bonds involved in interactions are non-covalent bonds (H bonds, Van der Waals forces). Principal component analysis showed that anthocyanins, flavonols, and phenolic acids could differently behave in the adsorption process, which could be due to differences in the chemical structures (ionic nature of anthocyanins, nonionic nature of flavonols and phenolic acids at low pH). …”
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  16. 956

    Structuring ampelographic collections by phenotypic characteristics and comparing the reaction of grape varieties to climate change by L. Yu. Novikova, L. G. Naumova

    Published 2019-10-01
    “…Homogeneous groups  of characteristics and varieties are identified by principal component analysis (PCA) and analysis of variance (ANOVA) methods. …”
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    Article
  17. 957

    Motivasi belajar sejarah kebudayaan islam (MBSKI) scale: mengukur sifat psikometri dengan rasch measurement tool (RMT) by Yasnel Yasnel, Sariah Sariah, Susiba Susiba, Syafi'ah Syafi'ah, M. Fahli Zatrahadi, Darmawati Darmawati, Istiqomah Istiqomah

    Published 2022-06-01
    “…Dalam penelitian ini Model Rasch digunakan untuk mengukur sifat psikometri, peneliti menggunakan program komputer WINSTEP4.7.0 untuk melakukan model pengukuran rasch, analisis yang dilakukan adalah mengukur objective measurement, reliability and separation index, threshold: partial credit model, estimation validity through principal component analysis, person measure, dan item measure. …”
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    Article
  18. 958

    Determining the Heterotic Groups of Selected Grain Maize (Zea mays L.) Inbred Lines using Morphological and Phenological Traits by Mahnaz Oroojloo, Sara Dezhsetan, Behzad Ahmadi, Mohammadreza Shiri, Ali Moghaddam

    Published 2024-11-01
    “…Based on the results of the principal component analysis, the first component explained 25.67% of the total variation. …”
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    Article
  19. 959

    Antidepressant Treatment Response Prediction With Early Assessment of Functional Near-Infrared Spectroscopy and Micro-RNA by Lok Hua Lee, Cyrus Su Hui Ho, Yee Ling Chan, Gabrielle Wann Nii Tay, Cheng-Kai Lu, Tong Boon Tang

    Published 2025-01-01
    “…Our proposed algorithm includes a custom inter-subject variability reduction based on the principal component analysis (PCA). The principal components of extracted features are first identified for non-responders&#x2019; group. …”
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    Article
  20. 960

    High-coverage whole-genome sequencing of a Jakun individual from the “Orang Asli” Proto-Malay subtribe from Peninsular Malaysia by Wai-Sum Yap, Alvin Cengnata, Woei-Yuh Saw, Thuhairah Abdul Rahman, Yik-Ying Teo, Renee Lay-Hong Lim, Boon-Peng Hoh

    Published 2025-01-01
    “…Of these, 39,916 SNVs were novel (referencing dbSNP151), and 10,167 were nonsynonymous (nsSNVs), spanning 5674 genes. Principal Component Analysis (PCA) revealed that the Jakun genome sequence closely clustered with the genomes of the Cambodians (CAM) and the Metropolitan Malays from Singapore (SG_MAS). …”
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    Article