-
6341
Repeatability of artificial gravity tolerance times
Published 2025-05-01“…However, there has not been an investigation on how long before analog testing AG orthostatic tolerance data would remain valid for such a study.MethodsA secondary analysis of two experiments involving AG orthostatic tolerance testing (starting at 0.6 for females and 0.8 Gz for males and increased by 0.1 Gz every 3 minutes until presyncope) conducted 7 months apart at MEDES revealed 4 male and 3 female participants who had taken part in both.ResultsComparisons of participants’ time to presyncope between the two tests using Lin’s concordance correlation coefficient (LCCC) showed a significant relationship in time to presyncope between the two test dates (LCCC = 0.98) for males but not for females (LCCC = −0.64). …”
Get full text
Article -
6342
Modeling and Regulation of Dynamic Temperature for Layer Houses Under Combined Positive- and Negative-Pressure Ventilation
Published 2024-10-01“…The results show that the coefficients of determination (R<sup>2</sup>) of the constructed dynamic temperature models are between 0.79 and 0.88, respectively, indicating high accuracy. …”
Get full text
Article -
6343
Modelling Soil Water Retention Using Support Vector Machines with Genetic Algorithm Optimisation
Published 2014-01-01“…Elaborated models showed good agreement with measured soil water retention data. Achieved coefficients of determination values were in the range 0.67–0.92. …”
Get full text
Article -
6344
Vulnerability Assessment for Excessive Acceleration Failure Mode of an Indonesian Ro-Ro Ferry by Model Experiment
Published 2025-01-01“…The roll decay test is used as the alternative method to estimate the non-dimensional logarithmic decrement of roll decay and the damping coefficients to assess the stability base on the excessive acceleration criteria. …”
Get full text
Article -
6345
Inappropriate medication prescribing, polypharmacy, potential drug-drug interactions and medication regimen complexity in older adults attending three referral hospitals in Asmara,...
Published 2025-02-01“…This study aimed to assess inappropriate prescribing practices, polypharmacy, medication regimen complexity, and their determinants in older adults. Methods A cross-sectional study was conducted among older adults (aged 65 years and above) who visited three referral hospitals in Asmara, Eritrea, between June and August, 2023. …”
Get full text
Article -
6346
An Unsupervised Learning Approach for Coal Spontaneous Combustion Warning Level Classification Using t-SNE and k-Means Clustering
Published 2025-03-01“…The clustering results of the original data were compared with Principal Component Analysis (PCA) and Stochastic Neighbor Embedding (SNE) methods to determine coal spontaneous combustion warning levels. …”
Get full text
Article -
6347
-
6348
TECHNOLOGY FOR CREATING THE TOPOLOGY OF PRINTED CIRCUIT BOARDS USING POLYMER 3D MASKS
Published 2021-03-01“…To achieve this goal, it is necessary to solve the following tasks: to analyze photolithography technology and types of polymer 3D printing; to develop a technological process for exposing photopolymer masks to a printed circuit board blank using 3D printing technologies; to conduct experimental studies to determine the optimal exposure parameters; on the basis of the empirical results obtained, to calculate the correlation coefficients of the factors for recall; to construct a linear regression model of the dependence of the deviations of the geometric dimensions of the printed conductors on the parameters of solutions for etching and exposure conditions. …”
Get full text
Article -
6349
Estimation of the Relative Chlorophyll Content of Pear Leaves Based on Field Spectrometry in Alaer, Xinjiang
Published 2025-06-01“…The findings indicate that (1) the models developed using the discrete wavelet transform had coefficients of determination (<i>R</i><sup>2</sup>) exceeding 0.65, and their predictive performance surpassed that of other models employing various mathematical transformations, and (2) the model constructed using the L1 scale for the discrete wavelet transform had greater estimation accuracy and stability than models established through traditional mathematical transformations or the high-frequency scale for discrete wavelet transform, with an <i>R</i><sup>2</sup> value of 0.742 and a root mean square error (RMSE) of 0.936. …”
Get full text
Article -
6350
Electrospun chitosan modified montmorillonite/polyvinyl alcohol nanofibers as suitable coating for fiber-in-tube solid-phase microextraction of trace amounts of tricyclic antidepre...
Published 2025-02-01“…Additionally, coefficients of determination (R²) exceeding 0.9911 were achieved, indicating excellent linearity for the calibration curves. …”
Get full text
Article -
6351
Research on Surrogate Model of Variable Geometry Turbine Performance Based on Backpropagation Neural Network
Published 2025-05-01“…When the throat area of the single-stage turbine nozzle changed by ±30%, the maximum relative errors between the calculated mass flow rate and efficiency and their experimental values were 3.602% and 4.228%, respectively; thus, the determination coefficients of the constructed BP neural network model for the training samples were all greater than 0.999, indicating that the surrogate model has high prediction accuracy and strong generalization ability and can quickly predict variable geometry turbine cooling performance.…”
Get full text
Article -
6352
Approaches to setting weights in composite indicators of sports development: the case of the Football Development Index
Published 2017-08-01“…The FDI was recalculated using all five approaches and tested for similarities using Pearson correlation coefficients. Results: The authors were able to calculate five different variations of the FDI using the different weighting methods. …”
Get full text
Article -
6353
PIDLF+: A Novel Adaptive PIDLF for Forestry Height Mapping Based on Single-Baseline PolInSAR Data
Published 2025-01-01“…It achieved a root-mean-square error (RMSE) of 8.69 m and a coefficient of determination (<inline-formula><tex-math notation="LaTeX">$R^{2}$</tex-math></inline-formula>) of 0.94 in the Lopé site, an RMSE of 11.31 m and an <inline-formula><tex-math notation="LaTeX">$R^{2}$</tex-math></inline-formula> of 0.90 in the Pongara site, and an RMSE of 8.86 m and an <inline-formula><tex-math notation="LaTeX">$R^{2}$</tex-math></inline-formula> of 0.92 in the Rabi site.…”
Get full text
Article -
6354
Low-Cost Monitoring of Airborne Heavy Metals Using Lichen Bioindicators: Insights from Opole, Southern Poland
Published 2025-05-01“…Microscope and chemotaxonomy methods were used in the laboratory to confirm field identification of lichens (atlases and keys). …”
Get full text
Article -
6355
Creation of the development strategy in enterprise based on dynamic SPACE-analysis
Published 2016-09-01“…Methods. SPACE-analysis, analytic hierarchy process (ANP), expert analysis. …”
Get full text
Article -
6356
Clinical and laboratory features of acute intestinal infections with hyemocolitis syndrome in children
Published 2019-10-01“…The etiological diagnosis verified using bacteriological and PCR studies of feces with AmpliSens® OKA screen-FL reagents and serological methods. Hemocolitis syndrome was observed in all patients. …”
Get full text
Article -
6357
Second-harmonic generation microscopy of murine scleral remodeling by collagenase and reparative collagen mimetic peptides
Published 2025-05-01“…This investigation is a pilot study to determine if a novel collagen mimetic peptide (CMP) has a reparative function for scleral collagen organization after collagenase digestion, a cause for scleral thinning and increased creep rates, as this may have application in the pharmacologic treatment of myopia.MethodsFresh, ex vivo, scleral tissue samples from 3 albino Sprague–Dawley rats (5 eyes) and from 8 C57/Black mice (8 eyes) underwent sequential collagenase digestion and treatment with a CMP solution. …”
Get full text
Article -
6358
Correlation between Sputum Cartridge-based Nucleic Acid Amplification Test–Cycle Threshold Values and Glycosylated Hemoglobin Levels in Patients with Pulmonary Tuberculosis
Published 2024-09-01“…Materials and methods: This study, conducted over a span of 6 months, followed a cross-sectional design. …”
Get full text
Article -
6359
Level of matrix metalloproteinase-9 and myocardium remodeling in patients with acute postinfarction aneurism of left ventricle
Published 2013-12-01“…Severity of postinfarction remodeling is a factor that determines the degree of myocardial dysfunction and prognosis of survival. …”
Get full text
Article -
6360
Análisis observacional del ataque a una pierna del central en el voleibol femenino (Observational analysis of the one-leg attack of the central player in female volleyball)
Published 2024-01-01“…Methods: 269 attack actions from various Eurovolley 2017 women's matches were analyzed by video. …”
Get full text
Article