Showing 18,461 - 18,480 results of 25,938 for search '"R', query time: 0.14s Refine Results
  1. 18461
  2. 18462
  3. 18463

    Non-Intrusive Monitoring of Vital Signs in the Lower Limbs Using Optical Sensors by Joana Simões, Regina Oliveira, Florinda M. Costa, António Teixeira, Cátia Leitão, Pedro Correia, Ana Luísa M. Silva

    Published 2025-01-01
    “…A Pearson correlation coefficient of r = 0.92 and r = 0.77 and a mean difference of 1.2 bpm and 0.9 rpm for HR and RR, respectively, were obtained between the developed system and reference. …”
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  4. 18464

    Evaluating 28-Days Performance of Rice Husk Ash Green Concrete under Compression Gleaned from Neural Networks by Sharanjit Singh, Harish Chandra Arora, Aman Kumar, Nishant Raj Kapoor, Kennedy C. Onyelowe, Krishna Kumar, Hardeep Singh Rai

    Published 2023-01-01
    “…The R and RMSE values of training, validation, and testing samples are 0.9928, 0.9864, and 0.9545, and 1.6471 MPa, 2.7149 MPa, and 4.4334 MPa, respectively. …”
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  5. 18465

    Exploring Seasonality Indices for Low-Flow Analysis on Tibagi Watershed (Brazil) by Alexandre Sokoloski de Azevedo Delduque de Macedo, Michael Männich

    Published 2025-01-01
    “…Spatial analysis reveals varied patterns with a certain trend of increased seasonality intensity (parameter <i>r</i>) towards downstream (north) and as the watershed area increases. …”
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  6. 18466

    On eigenfunctions corresponding to first non-zero eigenvalue of the sphere $ S^n(c) $ on a Riemannian manifold by Sharief Deshmukh, Amira Ishan, Olga Belova

    Published 2024-12-01
    “…First, we consider the compact $ \left(M^{n}, g\right) $ as the hypersurface of the Euclidean space $ \left(R^{n+1}, \langle, \rangle \right) $ with isometric immersion $ f:\left(M^{n}, g\right) \rightarrow $ $ \left(R^{n+1}, \langle, \rangle \right) $ and a constant unit vector $ \overrightarrow{a} $ such that the function $ \rho = \langle f, \overrightarrow{a}\rangle $ satisfying $ \Delta \rho = -nc\rho $ for a positive constant $ c $ is isometric to $ S^{n}(c) $ if and only if $ \left(M^{n}, g\right) $ is isometric to $ S^{n}(c) $ provided the integral of Ricci curvature $ Ric\left(\nabla \rho, \nabla \rho \right) $ has an appropriate lower bound. …”
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  7. 18467
  8. 18468

    A New Pabs Model for Quantitatively Diagnosing Phosphorus Nutritional Status in Corn Plants by Xinwei Zhao, Shengbo Chen, Yucheng Xu, Zibo Wang

    Published 2025-01-01
    “…The model exhibited robust performance, achieving an R<sup>2</sup> above 0.95 and an RMSE below 0.22. …”
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  9. 18469
  10. 18470

    Phonocardiography based pulse wave velocity system for non-occlusive assessment of arterial stiffness by T. Corina Margain, Emily Powell, Alexandra Clark, Adam Bush

    Published 2025-01-01
    “…PWVcarotid−toe: 10.62 ± 3.86 m/s) with age as a significant predictor (PWVcarotid−femoral: r2 = 0.45; PWVcarotid−toe: r2 = 0.28, p &lt; 0.05). …”
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  11. 18471

    Design Improvements and Best Practices in Small-Scale Biodigesters for Sustainable Biogas Production: A Case Study in the Chillon Valley, Perú by Yoisdel Castillo Alvarez, Reinier Jiménez Borges, Carlos Diego Patiño Vidal, Fanny Mabel Carhuancho Leon, José Santos Pinares Buendia, Jose Alberto Samaniego Nolasco

    Published 2025-01-01
    “…A mathematical model was created and applied to the case study with an R<sup>2</sup> correlation of 98% and a pseudo-R<sup>2</sup> of 89.5%, evidencing a remarkable predictive capacity. …”
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  12. 18472

    Suicide risk model based on the interpersonal theory of suicide: evidence in three regions of Mexico by Modesto Solis-Espinoza, Juan Manuel Mancilla Díaz, Rosalía Vázquez Arévalo

    Published 2023-02-01
    “…Lastly, two properly adjusted structural equation models were obtained, one focused on suicidal risk (R2=.21; RMSEA=.026; CFI=.99) and the other on ideation (R2=.18; RMSEA=.070; CFI=.98). …”
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  13. 18473

    Kinetic of Hexavalent Chromium (Cr(VI)) Removal by Corn Cob-Based Activated Carbon Modified with Nitric Acid by Wahyu Ratnaningsih, Vebri Aningtyas, Husna Muizzati Shabrina, Uma Fadzilia Arifin, Wisnu Prayogo, Muhammad Amin

    Published 2025-01-01
    “…Based on adsorption kinetics data, the pseudo-second-order equation was obtained (R2 =0.994). The adsorption phenomenon followed the Langmuir isotherm model (R2 = 0.998) with an optimum adsorption capacity of 28.32 mg/g. …”
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  14. 18474

    Extensive In Silico Analysis of ATL1 Gene : Discovered Five Mutations That May Cause Hereditary Spastic Paraplegia Type 3A by Mujahed I. Mustafa, Naseem S. Murshed, Abdelrahman H. Abdelmoneim, Miyssa I. Abdelmageed, Nafisa M. Elfadol, Abdelrafie M. Makhawi

    Published 2020-01-01
    “…In this study, the impact of nsSNPs in the ATL1 gene was investigated by various in silico tools that revealed five nsSNPs (V67F, T120I, R217Q, R495W, and G504E) are deleterious SNPs, which have a functional impact on ATL1 protein and, therefore, can be used as genomic biomarkers specifically before 4 years of age; also, it may play a key role in pharmacogenomics by evaluating drug response for this disabling disease.…”
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  15. 18475

    Logistic regression in predicting bullying based on the components of emotional intelligence and spiritual intelligence. by Saeed Fakharyzade Najafabadi, Ali Mohammad Rezaei, Mohammad Ali Mohammadyfar, ,Siavash Talepasand

    Published 2023-08-01
    “…For the fit index of the regression model, R2 Cox and Snell and R2 Nagel crack and in order to check the consistency of the predicted probabilities with the observed probabilities, Hausmer and Lemshu tests were used. …”
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  16. 18476

    The value of lung ultrasound score combined with echocardiography in assessing right heart function in patients undergoing maintenance hemodialysis and experiencing pulmonary hyper... by Ying Xia, Xin Liu

    Published 2025-01-01
    “…Correlation analysis revealed that Tricuspid annular plane systolic excursion (TAPSE), Fractional area change (FAC), and Tricuspid annular peak systolic velocity(S') were negatively correlated with LUS(r = -0.81, -0.86, -0.69), while Right ventricular free wall longitudinal strain(RVFWLS) was positively correlated with LUS (r = 0.85, P < 0.05). …”
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  17. 18477

    A Comparative Study to Assess the Level of Stress and Coping Strategies among Introvert and Extrovert Nursing Students in Selected Colleges of Nursing, Delhi and NCR by Shilpa Sharma, M. Jibanlata Devi, Arshi Anjum Khan

    Published 2024-01-01
    “…The correlation between stress and coping strategies among introvert Nursing students were r=0.147 (P<0.05) and r=0.246 (P<0.01) for extrovert Nursing students. …”
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  18. 18478

    Length – Weight Relationships, Meat Yield and Morphometric Indices of Five Commercial Bivalve Species Collected from the Çanakkale Strait (Türkiye) by İbrahim Ender Künili, Fatma Çolakoğlu, Serhat Çolakoğlu

    Published 2024-01-01
    “…Four species had negative allometries, namely D. trunculus (2.738), C. gallina (2.889), M. galloprovincialis (2.597) and O. edulis (2.728), while R. philippinarum (3.137) displayed positive allometry. …”
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  19. 18479

    Modeling the Hydrological Process of the Genale Dawa-3 Dam Watershed, Ethiopia by Ashenafi Dechasa, Wakjira T. Dibaba, Alemu O. Aga, Mezgebu Geme Worku, Miliyon Dida Feye, Firaol Bedada Kopesa, Bekele Terefe Gebisa, Brook Legese, Amare Tura Abate

    Published 2025-01-01
    “…The statistical analysis revealed that there was significant agreement between the observed and simulated streamflow in terms of R2 (0.79, 0.75), NSE (0.74, 0.72), PBIAS (−2.8, 2.1), and RSR (0.57, 0.56) during calibration and validation. …”
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  20. 18480

    Elevated Serum TNF-α Is Related to Obesity in Type 2 Diabetes Mellitus and Is Associated with Glycemic Control and Insulin Resistance by Hana Alzamil

    Published 2020-01-01
    “…TNF-α correlated positively with HbA1c (r = 0.361, p=0.003) and HOMA-IR (r = 0.296, p=0.017) in patients with T2DM. …”
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