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6041
Active Razor Shell CaO Catalyst Synthesis for Jatropha Methyl Ester Production via Optimized Two-Step Transesterification
Published 2017-01-01“…The regression model adequacy ascertained thru coefficient of determination (R2: 95.81%). A JME yield of 98.80% was noted at C (3.10 wt.%), M (54.24 mol.…”
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6042
Application of Fourier Transform Near-Infrared Spectroscopy and Chemometrics for Quantitative Analysis of Milk of Lime (MOL) Used in the Sugar Industry
Published 2025-05-01“…The predictive performance was assessed using the coefficient of determination (R<sup>2</sup>). High predictive accuracy was observed for density (PLS: R<sup>2</sup> = 0.8274; PCR: R<sup>2</sup> = 0.8795) and calcium oxide availability (PLS: R<sup>2</sup> = 0.9035; PCR: R<sup>2</sup> = 0.9115). …”
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6043
DS-AdaptNet: An Efficient Retinal Vessel Segmentation Framework With Adaptive Enhancement and Depthwise Separable Convolutions
Published 2025-01-01“…Our comprehensive experiments on three benchmark retinal vessel segmentation datasets demonstrate that the proposed DS-AdaptNet achieves state-of-the-art performance while maintaining exceptional efficiency. Notably, our method attains a Dice coefficient of 0.8328 on DRIVE, 0.8110 on CHASE_DB1, and 0.8515 on STARE, consistently outperforming existing approaches. …”
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6044
Functional and phylogenetic β diversities and their link with clustering/overdispersion and uniqueness/redundancy
Published 2024-11-01“…Here, we develop a new method for partitioning FP β diversity into elementary components to determine how and why FP β diversity differs from species β diversity, with the latter reflecting only differences in species' abundances between communities. …”
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6045
Variogram modelling optimisation using genetic algorithm and machine learning linear regression: application for Sequential Gaussian Simulations mapping
Published 2025-06-01“…The study combines GA and machine learning to optimise variogram parameters, including range, sill, and nugget, by minimising the root mean square error (RMSE) and maximising the coefficient of determination (R2). The experimental variograms were computed and modelled using theoretical models, followed by optimisation via evolutionary algorithms. …”
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6046
Impact of bladder volume on renal pelvis dimensions in pediatric hydronephrosis
Published 2025-06-01“…Paired t-tests and Pearson’s correlation coefficient were applied for statistical analysis. …”
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6047
Associação entre níveis plasmáticos de homocisteína e acidente vascular cerebral isquêmico: estudo transversal analítico Association between plasmatic levels of homocysteine and st...
Published 2005-03-01“…METHOD: Transversal analytic observational study of 104 patients with the diagnosis of ischemic stroke and 98 healthy controls had blood homocysteine analyzed by high performance liquid chromatography. …”
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6048
Assessing the impact of five teaching strategies on the academic performance of senior high school students in financial accounting: A case study in Wa
Published 2025-01-01“…Using Yamane's sample size determination formula and a simple random sampling method, 200 participants were initially recruited to account for potential attrition. …”
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6049
Wavelet Multiresolution Analysis-Based Takagi–Sugeno–Kang Model, with a Projection Step and Surrogate Feature Selection for Spectral Wave Height Prediction
Published 2025-08-01“…The predictive scheme with the projection step yields a coefficient of determination of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>0.9991</mn></mrow></semantics></math></inline-formula>, indicating a high level of accuracy. …”
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6050
Modeling residue formation from crude oil oxidation using tree-based machine learning approaches
Published 2025-07-01“…Moreover, it recorded a determination coefficient (R2) value of 0.9993, highlighting its exceptional predictive capability. …”
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6051
Customization of an efficient and cost-effective optical biosensor for trace cadmium detection in milk samples
Published 2025-03-01“…An activity assay was performed for immobilized urease at pH 7.5; the optimized enzyme was 67 % stable for up to four weeks of storage at 4 °C due to excellent crosslinking during functionalization and immobilization. The coefficient of determination (R2) was calculated to measure the proportion of biosensor readings with standard readings obtained by the ICP-MS readings. …”
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6052
Structural and magneto-elastic properties of samarium doped cobalt–nickel ferrite ceramics obtained by spark plasma sintering
Published 2025-03-01“…The present work focused on fabricating and characterizing the magneto-structural properties of pure spinel ferrite nanoparticles and Co0.8Ni0.2Fe2-xSmxO4 (x = 0.01, 0.02) using the sol-gel method, and then producing pellets using the spark plasma sintering technique. …”
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6053
The asymmetric effect of financial development on energy consumption in sub-Saharan Africa
Published 2022-12-01“…The Autoregressive Distributed Lag (ARDL) panel estimator was employed to test for the linear relationship and symmetric effects of the long-run and short-run coefficients. The asymmetry was determined by decomposing financial development into positive and negative components, employing the non-linear ARDL (NARDL) method. …”
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6054
LC-MS/MS Triple Quadrupole Multiresidue Analysis of Pesticides From Soils of Vegetable Farms: A Report From Ethiopia
Published 2025-01-01“…The physicochemical properties of the soils were also determined following appropriate procedures. The analytical method was accurate with a percentage recovery of 71%–120% and acceptable with correlation coefficients greater than 0.992. …”
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6055
Three-Dimensional Vibration Analysis of Isotropic and Orthotropic Open Shells and Plates with Arbitrary Boundary Conditions
Published 2015-01-01“…All the expansion coefficients are then treated equally as independent generalized coordinates and determined by the Rayleigh-Ritz procedure. …”
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6056
Extracellular volume fraction quantification by equilibrium contrast-enhanced CT via automated segmentation predicts survival outcomes in bladder cancer: a propensity score-matched...
Published 2025-12-01“…Correlations between ECV scores and pathological T stage (whether muscle invasion was present) were determined by using Pearson correlation coefficients. …”
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6057
Modelos matemáticos para predição da chuva de projeto para regiões do Estado de Minas Gerais Mathematical models for the estimation of rainfall in selected regions of Minas Gerais...
Published 2003-04-01“…The regional parameters were estimated by non-linear multiple regression, using Gauss-Newton's method. The goodness of the models was evaluated by the coefficient of determination and mean errors of prediction as compared to the original data. …”
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6058
Evaluación de la fuerza a través de la cinética del lactato y su correlación con el vo2max y frecuencia cardíaca en población con factores de riesgo: implicaciones para la salud me...
Published 2024-05-01“…A strong association was observed between maximum heart rate (FC max) in endurance and strength, with a coefficient of determination (R²) of 0.981 (p < 0.001). …”
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6059
Patient centered outcomes in stroke: utility-weighted modified Rankin Scale results in a community-based study
Published 2025-03-01“…We aimed to derive utility-weighted modified Rankin Scale (UW-mRS) values by mapping mRS functional status to EQ-5D-3L scores in a population-based cohort of stroke patients.MethodsThe UW-mRS was obtained by analyzing the EQ5-D-3 L and mRS scores at 180 days after any stroke in the ÑANDU study, a large prospective community-based study in Chile. …”
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6060
Using an LED Light Source Coupled With Spectral Image Analysis for Non-Invasive Glucose Detection
Published 2024-01-01“…The regression equation for the red channel was y = −3.1184x+148.2, with a coefficient of determination (R<sup>2</sup>) of 0.9165, a limit of detection (LOD) of 2.27 mM, and a limit of quantification (LOQ) of 6.88 mM. …”
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