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5841
Prediction of First-Onset Cerebral Infarction Risk in Patients with Acute Myocardial Infarction: A Retrospective Cohort Study
Published 2025-06-01“…The optimal cutoff value of the nomogram probability was determined.Results: CI occurred in 60 patients (4.44%). …”
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5842
The prealbumin-CD19+ index predicts surgical survival in patients with GC
Published 2025-02-01“…The cut-off values for PALB and CD19+ were determined to be 230.50 mg/L and 15.40%, respectively. …”
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5843
Assessment of meniscal extrusion with ultrasonography: a systematic review and meta-analysis
Published 2024-10-01“…Intraclass correlation coefficients (ICC) for intra- and interrater reliability were minimum 0.94 and 0.91, respectively. …”
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5844
Effectiveness of preeclampsia prognosis in pregnancy
Published 2014-03-01“…Of them: 133 women with preeclampsia of varying severity, 44 - with uncomplicated pregnancy. Prediction method is based on testing of thrombophilia genes, level of antibodies to β2 glycoprotein-1, D-dimer, value of atherogenicity coefficient. …”
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5845
Dynamic interaction between two 3D rigid surface foundations subjected to oblique seismic waves
Published 2025-03-01“…The solution is obtained using the frequency domain boundary element method, with Green's functions derived through the thin layer method. …”
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5846
Artificial intelligence models for predicting the performance of proton exchange membrane water electrolyzers under steady and dynamic power
Published 2025-01-01“…The model offered a goodness of fit or coefficient of determination ( R ^2 ) value of 0.9991 for the testing data and can predict the performance of untrained electrolyzers and their operation with similar accuracy.…”
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5847
Investigating the impact of intellectual capital on organizational performance and knowledge management operations (case study: Hamedan county governor.
Published 2024-05-01“…In this research, using Morgan's table and considering the limited number of the statistical population, the number of research samples was selected as 56 people, and the sampling method is a simple random method. Also, the reliability of the questionnaires is confirmed using Cronbach's alpha coefficient and composite reliability. …”
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5848
Multiclass Pesticide Residue Analysis in Fruit and Vegetable Samples by Combining Acetone-Based Salting-Out Assisted Extraction with Dispersive Liquid-Liquid Microextraction
Published 2021-01-01“…The effect of the type and volume of the extraction solvent in the pretreatment step, the volume of the disperser solvent (acetone extract), the type and volume of the extraction solvent, pH, and salt addition in the DLLME procedure was studied. Good coefficient of determination (R2 ≥ 0.9964) was obtained for all the target analytes. …”
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5849
Laser-induced Breakdown Spectroscopy Based on Pre-classification Strategy for Quantitative Analysis of Rock Samples
Published 2023-08-01“…The kNN algorithm was selected using cross-validation to determine the optimal k value, and the key punishment parameter C and RBF width parameter γ of the SVM algorithm were determined using a grid search method. …”
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5850
Addition of punishments
Published 2022-09-01“…The logical sequence of the presentation of regulatory requirements in these articles is flawed.The method and the basic algorithm for determining the final penalty when adding punishments. …”
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5851
Distribution Characteristics and Ecological Risk Assessment of Heavy Metals in Typical Soil Profiles of Muchuan County, Sichuan Province
Published 2023-12-01“…However, due to the wide area of contaminated soil and the complex composition of pollution sources, the current soil remediation work still faces huge problems.OBJECTIVESTo study the vertical distribution characteristics of heavy metals in soil, the relationship between soil heavy metals and soil nutrient elements, as well as the degree of pollution and potential ecological risks.METHODSThe contents of Cd, Cu, Ni, Pb, Zn were measured using inductively coupled plasma-mass spectrometry (ICP-MS); As content was determined by hydride generation atomic fluorescence spectrometry (HG-AFS); P and K2O contents were determined by X-ray fluorescence spectrometry (XRF); N content was determined by oxidation combustion gas chromatography (GC); Hg content was determined by cold vapor atomic fluorescence spectrometry (CV-AFS); Organic carbon content was determined by high-frequency combustion infrared absorption method (IR); potentiometric method (POT) was used to measure soil pH value. …”
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5852
The Сontent of Some Humoral and Metabolic Vasoactive Factors in the Blood of the Cirrhotic Patients and Their Dependence on the Hepatopulmonary Syndrome Severity Degree
Published 2016-12-01“…The aim of our study was to determine the content of some humoral and metabolic vasoactive factors, namely the endothelium-dependent (cyclic guanosine monophosphate, endothelin-1, tumor necrosis factor α), indices of the renin-aldosterone system (renin, aldosterone), natriuretic hormone in the blood of the cirrhotic patients and determine their dependence on the hepatopulmonary syndrome severity degree. …”
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5853
Structure, morphology, thermal and conductivity properties of gel electrolyte system based on polyvinyl chloride and LiClO4
Published 2018-03-01“…The coefficients of self-diffusion of atoms and molecules are determined and a possible variant of the mechanism of charge transport in this system is proposed.…”
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5854
Fractional Model Reference Adaptive PIλDμ Control
Published 2016-12-01“…This structure uses fractional order derivative, integral operators and fractional order reference model. Through this method, fractional order PID controller will be faster and more robustness.Respectively using integer PID and fractional order PID, the coefficients of them are determined with Zeigler-Nichols technique, simulation applications of the fractional MRAPIλDμ control and the model reference adaptive PID (MRAPID) control performed. …”
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5855
Modeling study of the magnetocaloric behavior of La₀.₆₇Ca₀.₃₃Mn₀.₉₈Ni₀.₀₂O₃ alloys using artificial neural networks
Published 2025-06-01“…The model showed outstanding performance with a coefficient of determination (R²) of 0.999241 and a root mean square error (MSE) of 0.003472. …”
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5856
Nuclear imaging studies in patients with an indeterminate diagnosis of infective endocarditis: A retrospective analysis of a case series
Published 2025-03-01“…Objectives: To determine the role of nuclear imaging (NI) in evaluating inconclusive cases with suspicion of infective endocarditis (IE). …”
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5857
Cloud point prediction model for polyvinyl alcohol production plants considering process dynamics
Published 2024-12-01“…When comparing the conventional method with the proposed method, the coefficient of determination, used as an indicator to evaluate model performance, improved from 0.288 to 0.729. …”
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5858
Estimating protein intake in sarcopenic older adults: combining food diaries and weighed powders versus 24-hour urine collections
Published 2025-03-01“…Mean differences and Lin’s concordance correlation coefficients were used to assess agreement between the two methods. …”
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5859
Nonlinear mixed-effects modelling of in vitro drug susceptibility and molecular correlates of multidrug resistant Plasmodium falciparum.
Published 2013-01-01“…The EC50 estimates were similar for the two statistical approaches but 15-28% of isolates in the STS method had a high coefficient of variation (>15%) for individual estimates of EC50 and these isolates had EC50 values that were 32 to 66% higher than isolates derived with more precision. …”
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5860
Modelling off-stream reservoir using rainfall-runoff transformation and satellite rainfall data in Liliba and Manikin watersheds of Indonesia
Published 2025-07-01“…The statistical requirements for calibration and validation include the coefficient of determination (R2 > 0.40), Nash-Sutcliffe Efficiency (NSE >0.40), root mean square error (RMSE)-standard deviation ratio of research data, or RSR (<0.70), and percent bias (PBIAS <30). …”
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