Showing 1,061 - 1,080 results of 1,228 for search '"principal component analysis"', query time: 0.10s Refine Results
  1. 1061

    OH 89: A newly described ~1.8-million-year-old hominid clavicle from Olduvai Gorge by Taylor, Catherine E, Masao, Fidelis, Njau, Jackson K, Songita, Agustino Venance, Hlusko, Leslea J

    Published 2024-03-01
    “…We also describe a new methodology for measuring clavicular curvature using measurements of sternal and acromial curvature, from which an overall curvature measurement is calculated. A principal component analysis (PCA) and a t-distributed stochastic neighbor embedding (tSNE) analysis are used to compare the morphology of OH 89 with the extant and fossil comparative samples. …”
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  2. 1062

    Valorization of vermicompost with bacterial fermented chicken feather hydrolysate for the yield improvement of tomato plant: A novel organic combination by Ishita Biswas, Debasis Mitra, Ansuman Senapati, Debanjan Mitra, Sourav Chattaraj, Murshed Ali, Goutam Basak, Periyasamy Panneerselvam, Pradeep K. Das Mohapatra

    Published 2021-03-01
    “…Conclusion The principal component analysis of the field experiment as a result of tomato plant-growth, the order of best treatment efficacy for improvement of parameter estimates was as follows: CFPH and VC > CFPH > VC > recommended dose of fertilizers (RDF) > control. …”
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  3. 1063

    Consistent Estimators of the Population Covariance Matrix and Its Reparameterizations by Chia-Hsuan Tsai, Ming-Tien Tsai

    Published 2025-01-01
    “…A high-dimensional statistical hypothesis testing problem is used to carry out statistical inference for high-dimensional principal component analysis-related problems without the sparsity assumption. …”
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  4. 1064
  5. 1065

    Effects of the Treatment Technology of Soybean on Volatile Flavor Compounds of Plant-based Compound Milk during Storage by Xue WANG, Youqiang YU, Xiaoyang ZHENG, Hongjiang MA, Shiwei LIU, Wenxin WANG, Fang ZHOU, Shenglin DUAN

    Published 2025-02-01
    “…The results of principal component analysis showed that hexanol, 1-tetradecanol, 1-hexanol, pyridine, ethyl caproate, ethyl palmitate, 2-heptanone, 2-octanone, 2-acetylthiazole were the key factors affecting the flavor change of plant-based composite milk 1#, while 2,3 butanediol, n-hexanal, maltol, benzaldehyde, ethyl acetate, 3-ethyl-2,5-dimethylpyrazine were the key factors affecting the flavor change of plant-based composite milk 2# during storage. …”
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  6. 1066

    Diagnosis of lung cancer using salivary miRNAs expression and clinical characteristics by Negar Alizadeh, Hoda Zahedi, Maryam Koopaie, Mahnaz Fatahzadeh, Reza Mousavi, Sajad Kolahdooz

    Published 2025-01-01
    “…Receiver operating characteristic (ROC) curve was utilized to assess the potential significance of miRNAs in saliva for lung cancer diagnosis with the use of multiple logistic regression (MLR), principal component analysis, and machine learning methods. Results Diagnostic odds ratio (DOR) of miR-20a in lung adenocarcinoma diagnosis versus healthy control was higher than miR-221, and DOR of miR-221 was higher than let-7a-2. miR-20a demonstrated a higher DOR for small cell lung carcinoma versus healthy control compared to let-7a-2, which in turn exhibited a higher DOR than miR-221. …”
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  7. 1067

    Classification of Strawberry Maturity Stages and Varieties Using Neural Networks Based on Volatile Organic Compounds by Jing Huang, Xuenan Zhang, Hang Yang, Zhenbiao Li, Zhengfang Xue, Qingqing Wang, Xinyuan Zhang, Shenghua Ding, Zisheng Luo, Yanqun Xu

    Published 2025-01-01
    “…A comprehensive VOC dataset was rapidly collected using gas chromatography-ion mobility spectrometry (GC-IMS) from five strawberry varieties at four maturity stages (n = 300) and visualized through principal component analysis (PCA). Five ML models were developed, including partial least squares discriminant analysis (PLS-DA), decision trees, support vector machines (SVM), Xgboost and neural networks (NN). …”
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  8. 1068

    Forest value chain resilience from a local perspective in five European countries: analysis of predictors and co-drivers by Sandra P. García-Jácome, Martin Jankovský, Annechien Dirkje Hoeben, Marcus Lindner, Sara Uzquiano, Tobias Stern, Ondrej Nuhlíček, Dijana Vuletić, Hrvoje Marjanović, Juan Picos, Mikko Peltoniemi, Lukas Baumbach, Francisco Lloret, Francisco Lloret

    Published 2025-01-01
    “…A resilience assessment was conducted using resilience thresholds, considering sustainability from both ecological and economic perspectives. Principal component analysis (PCA) identified three predictor groups that influenced FVC resilience: wood production (WP), harvesting systems (HS), and management and silviculture (MS). …”
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  9. 1069

    Anatomical characterization of Semi-arid Bignoniaceae using light and scanning electron microscopy by Romisha Sonia, Shabnum Shaheen, Muhammad Waheed, Sana Imran, Shiekh Marifatul Haq, Murad Muhammad, Abeer Hashem, Samiha Al Shehri, Elsayed Fathi Abd-Allah

    Published 2025-01-01
    “…Three statistical tools—heat map analysis, correlation analysis, and principal component analysis (PCA)—were used to highlight distinctions and similarities among the species. …”
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  10. 1070

    Identification of fatty acid anabolism patterns to predict prognosis and immunotherapy response in gastric cancer by Weijie Sun, Yanhong Xia, Feifan Jin, Jinghao Cao, Gaoping Wu, Keyi Li, Yanhua Yu, Yunyi Wu, Gaoqi Ye, Ke Xu, Dengpan Liu, Weidong Jin

    Published 2025-01-01
    “…Importantly, a distinctive FA-score was constructed through the principal component analysis to quantify the characteristics of fatty acid anabolism in each GC patient. …”
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  11. 1071

    Blanching-Induced Changes in Polyphenol Oxidase, Antioxidants and Phenolic Profile of Mangosteen Pericarp by Giroon Ijod, Nur Izzati Mohamed Nawawi, Rabiha Sulaiman, Noranizan Mohd Adzahan, Farooq Anwar, Ezzat Mohamad Azman

    Published 2024-01-01
    “…However, the principal component analysis (PCA) showed that steam blanching for 90 s was the most efficient method, preserving the highest levels of antioxidant capacity, expressed as Trolox equivalents (TE; 9135 µmol/g), Fe(III)-reducing power, expressed as TE, (9729 µmol/g), total anthocyanins (3.03 mg/g), and TPC, expressed as gallic acid equivalents (1057 mg/g). …”
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  12. 1072
  13. 1073

    Unraveling metabolic signatures in SARS-CoV-2 variant infections using multiomics analysis by Sunho Lee, Sunho Lee, Jueun Lee, Kwang-Soo Lyoo, Yourim Shin, Yourim Shin, Dong-Min Shin, Jun-Won Kim, Jeong-Sun Yang, Kyung-Chang Kim, Joo-Yeon Lee, Geum-Sook Hwang, Geum-Sook Hwang

    Published 2024-12-01
    “…MethodsHere, metabolomics combined with transcriptomics was performed to elucidate the immunometabolic changes in the lung of hamsters infected with delta and omicron variants.ResultsBoth variants caused acute inflammation and lung pathology in intranasally infected hamsters. Principal component analysis uncovered the delta variant significantly altered lung metabolite levels between the pre- and post-infection states. …”
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  14. 1074

    Genome-Wide Scans for Selection Signatures in Haimen Goats Reveal Candidate Genes Associated with Growth Traits by Zhen Zhang, Jiafeng Lu, Yifei Wang, Zhipeng Liu, Dongxu Li, Kaiping Deng, Guomin Zhang, Bingru Zhao, Peihua You, Yixuan Fan, Feng Wang, Ziyu Wang

    Published 2025-01-01
    “…Here, we analyzed population genetic structure and genome-wide selection signatures between the Haimen and Boer goats based on whole-genome resequencing data. The principal component analysis (PCA) and neighbor-joining (N-J) tree results demonstrated significant genetic differentiation between the Haimen and Boer goats. …”
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  15. 1075

    A prognostic signature of Glutathione metabolism-associated long non-coding RNAs for lung adenocarcinoma with immune microenvironment insights by Junxi Hu, Junxi Hu, Shuyu Tian, Shuyu Tian, Qingwen Liu, Qingwen Liu, Jiaqi Hou, Jiaqi Hou, Jun wu, Jun wu, Xiaolin Wang, Xiaolin Wang, Yusheng Shu, Yusheng Shu

    Published 2025-02-01
    “…A prognostic model was built with Cox and Least Absolute Shrinkage and Selection Operator (LASSO) methods and validated by Kaplan-Meier analysis, Receiver Operating Characteristic (ROC) curves, and Principal Component Analysis (PCA). Functional analysis revealed immune infiltration and drug sensitivity differences. …”
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  16. 1076
  17. 1077

    A new health literacy scale for staff in preschool childcare institution: development and preliminary validation by Xinqi Zhuang, Yitong Jia, Tianxin Cui, Ge Meng, Jianzhong Zhang, Linxia He, Yin-Ping Zhang

    Published 2025-01-01
    “…Results The final Health Literacy Scale consisted of 28 items, including dimensions of Basic Health Knowledge (11 items), Functional Health Literacy Skills (3 items), Communicative Health Literacy (5 items), and Critical Health Literacy (9 items). Principal component analysis revealed a four-factor structure that explained 80.092% of the total variance. …”
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  18. 1078

    Optimization of Controlled Water and Nitrogen Fertigation on Greenhouse Culture of Capsicum annuum by Youzhen Xiang, Haiyang Zou, Fucang Zhang, You Wu, Shicheng Yan, Xinyan Zhang, Jianke Tian, Shengcai Qiang, Haidong Wang, Hanmi Zhou

    Published 2018-01-01
    “…They increased the economic yield, WUE, and PFPN. A principal component analysis was performed to evaluate indicators of fruit quality, revealing that the treatment of W0.75N0.50 resulted in the best fruit quality. …”
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  19. 1079

    Investigating dynamic brain functional redundancy as a mechanism of cognitive reserve by Julia Schwarz, Franziska Zistler, Adriana Usheva, Anika Fix, Sebastian Zinn, Juliana Zimmermann, Franziska Knolle, Franziska Knolle, Gerhard Schneider, Rachel Nuttall

    Published 2025-02-01
    “…Cognitive scores were extracted from principal component analysis performed on 13 cognitive tests across multiple cognitive domains. …”
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  20. 1080

    Effect of pretreatment type on the physico-chemical properties of activated carbons derived from an invasive weed Prosopis juliflora: potential applications by Subramaniyasharma Sivaraman, Saravanan Ramiah Shanmugam, Ponnusami Venkatachalam, Ratheeshkumar Shanmugam, Arul Chan Basha, Noori M Cata Saady

    Published 2025-01-01
    “…Comprehensive characterization techniques, namely BET analysis, x-ray Photoelectron Spectroscopy (XPS), Ultimate Analysis, and pH _pzc , were utilized to assess the influence of activation conditions. Principal component analysis was employed to elucidate the relationships between different activation methods and the physico-chemical properties of the activated carbons. …”
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