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6281
Surface movement and crack development laws of super-long working faces in medium-depth coal seam mining
Published 2025-01-01“…The laws were determined by applying methods such as manual surface movement observation, GNSS automatic surface movement observation, surface crack observation, and crack morphology tracing.ResultsCompared to the working face with an inclination width of 300 m, the maximum subsidence, maximum horizontal movement value, and maximum subsidence coefficient of the super-long working face with an inclination width of 450 m increased by 15.31%, 4.56%, and 16.13%, respectively. …”
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6282
Development and validation of a highly-sensitive, quantitative LC-MS/MS assay to evaluate plasma oxytocin
Published 2025-04-01“…Results: A lower limit of quantification of 1 ng/L was achieved. The method was validated for oxytocin concentrations ranging from 1 ng/L to 75 ng/L, with precision (coefficient of variation) below 10 %, accuracy ranging from 94 % to 108 %, and measurement uncertainty below 15 %. …”
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6283
Design and Development of Cognitive-Based Educational Strategies to Combat Illicit Drug Use in Bodybuilding Clubs of the Country
Published 2024-09-01“…After confirming the validity of the questionnaires with the help of 8 experts and specialists, their reliability was also confirmed by calculating Cronbach's alpha coefficient, and they were used to collect data. Descriptive and inferential statistical methods were used to analyze the collected data. …”
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6284
Optimizing the lithotripsy timing after drainage of the upper urinary tract in patients with urolithiasis and obstructive uropathy
Published 2021-10-01“…Urine sampling was performed for culture to determine the bacterial spectrum and antibiotic sensitivity.Results. …”
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6285
Helicobacter pylori culture as a key tool for diagnosis in Colombia
Published 2019-08-01“…The concordance between techniques was determined by the Cohen’s Kappa coefficient (K). The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were also calculated. …”
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6286
Attenuation correction in single-photon emission computed tomography for NURBS-based cardiac-torso phantom using dual-energy acquisition
Published 2020-07-01“…After the image reconstruction, a comparison between image groups was done using optimized UIQI to determine the quality of used reconstruction methods. …”
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6287
Assessment of traumatic mandibular nerve using MR neurography sequence: a preliminary study
Published 2024-06-01“…Abstract Background Iatrogenic mandibular nerve damage resulting from oral surgeries and dental procedures is painful and a formidable challenge for patients and oral surgeons alike, mainly because the absence of objective and quantitative methods for diagnosing nerve damage renders treatment and compensation ambiguous while often leading to medico-legal disputes. …”
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6288
Modeling of hydrogen sulfide removal from Petroleum production facilities using H2S scavenger
Published 2015-06-01“…The effect of variable parameters such as, gas flow rates, chemical injection doses, pipe diameter and length on mass transfer coefficient KGa, H2S outlet concentration and H2S scavenger efficiency has been studied. …”
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6289
PENGARUH PELATIHAN TERHADAP PRODUKTIVITAS PEGAWAI PADA KANTOR SEKRETARIAT DAERAH KOTA TANGERANG SELATAN
Published 2017-04-01“…From the calculation by using the Pearson correlation coefficient formula that there is a positive correlation between training and productivity of employees, which amounted to r = 0.715 and determination coefficient of 51.12% productivity is influenced by training. …”
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6290
LABOR PRODUCTIVITY IN ROMANIA'S AGRICULTURE IN THE PERIOD 2011-2020 AND ITS FORECAST FOR 2021-2025 HORIZON
Published 2021-01-01“…The processing procedures included fixed basis index, average growth rate, average annual growth, regression models, determination coefficient, descriptive statistics (mean standard deviation and variation coefficient), comparison methods and forecast modeling. …”
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6291
Establishment of a pseudovirus neutralization assay for TGEV
Published 2025-04-01“…The pNT method provides a scalable, efficient, and reliable tool for TGEV antibody evaluation, with broad potential applications in pathogen detection and vaccine assessment.…”
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6292
Antimicrobial Usage, Susceptibility Profiles, and Resistance Genes in Campylobacter Isolated from Cattle, Chicken, and Water Samples in Kajiado County, Kenya
Published 2023-01-01“…The correlation between antibiotic use and resistance phenotypes was determined using the Pearson’s correlation coefficient (r) method. …”
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6293
Research on axle-box bearing fault feature extraction algorithm based on simulation test and BOA-VMD
Published 2022-03-01“…Then, the BOA algorithm is used to optimize the VMD modal component number and the second penalty coefficient of the axle box vibration signal, so as to determine the best parameter combination. …”
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6294
Quantifying momentum and influencing factors of tennis players using the XGBoost model
Published 2025-05-01“…The article provides a clear quantitative description of the concept of momentum in tennis, analyzing the impact of momentum fluctuations on the trajectory of the game and the athlete’s scoring; a secondary indicator system is established, and the weights of each indicator are determined through expert analysis method, CRITIC weighting method, and hierarchical analysis method. …”
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6295
Vertisols infiltration rate and model performance evaluation of various land-use conditions during Southern Ethiopia's dry season
Published 2022-06-01“…The graphs of infiltration were generated to find the best fitting model for a certain vertisol soil type and two lands. The determination, correlation coefficient, bias, root mean square error (RMSE), model efficiency, determination coefficient (R2), slope, correlation coefficient (r), average percentage error, and the gradient were the performance indicators examined for the optimum fitting of the model. …”
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6296
Research on Key Parameters of Building Load Model for Dynamic Performance Measurement of Air Conditioner
Published 2025-01-01“…Given that the steady-state condition measurement in the laboratory cannot fully reflect the actual performance issues of air conditioners, the dynamic performance measurement of room air conditioners based on virtual buildings has become a current research hotspot. This paper determines the key parameters for the dynamic performance measurement of room air conditioners through simulation and model analysis methods: the load point of the building, the zero-load point, the heat and cold ratio, the sensible heat ratio, the selection coefficient, and the effective heat capacity and moisture capacity of the room. …”
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6297
RESULTS OF CLASSIC CAROTID ENDARTERECTOMY USING TEMPORARY CAROTID SHUNT
Published 2018-01-01“…The advantages of the given method were determined, facilitating to the reduction of intraoperative risks and the increase of technical quality of performance of different stages of the operation. …”
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6298
Ship Pipe Layout Based on Grid Normalized Astar Algorithm
Published 2025-01-01“…First, the mathematical models are established using bounding box and the grid method. Then, each path node is determined by the normalized weight values of different targets using the branch pipes splitting method, grid marking values, and the parent-child grid search strategy. …”
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6299
Numerical study on optimal geometric parameters of lining structures for roadway support using the artificial bee colony algorithm
Published 2025-08-01“…Abstract Lining structures are commonly used for roadway support in engineering practice; however, the method of determining the geometric parameters of lining structures should be properly addressed. …”
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6300
Analisis Cluster untuk Pengelompokan Kemampuan Penguasaan ICT Menggunakan K-Means dan Autoencoder
Published 2025-05-01“…The optimal number of clusters determined was three clusters. Model evaluation was conducted using the Silhouette coefficient and the Davies-Bouldin Index (DBI). …”
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