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261
Packed red blood cell transfusion threshold in traumatic brain injury: a systematic overview of reported studies
Published 2025-04-01“…There was heterogeneity among the studies included, with varied results showing worse outcomes with lower Hb threshold in few studies and no difference or worse complications with transfusion in others. …”
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262
Old and new equations for maximal and anaerobic threshold heart rate prediction in coronary heart disease in Chinese population
Published 2024-11-01“…This study aims to develop equations for MHR and HRAT, assess the accuracy of historical MHR formulas, and examine their correlation with HR measurements at the anaerobic threshold (AT). Methods Among 2021 to 2023, 170 CHD patients were recruited. …”
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263
Cycling Isokinetic Peak Force Explains Maximal Aerobic Power and Physiological Thresholds but Not Cycling Economy in Trained Triathletes
Published 2024-12-01“…., triathletes). Some methods include repetition maximum, joint isokinetic tests, and indirect estimates. …”
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264
Urine flow cytometry in older adults urinary tract infection diagnosis: is it time to reevaluate thresholds for men and women?
Published 2025-06-01“…Bacteriuria (AUC = 0.874) and leukocyturia (AUC = 0.925) were strongly associated with UTI, with thresholds of 150 bacteria/µL and 50 leukocytes/µL (both LR- < 0.1). …”
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Improve unsupervised Learning-based landslides detection by band ratio processing of RGB optical images: a case study on rainfall-induced landslide clusters
Published 2024-12-01“…Then, by further optimizing the relevant parameters, the threshold-based Image Difference and Principal Component Analysis-based K-means unsupervised learning classification methods are used to perform change detection and landslide cluster identification. …”
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Research on Stress Threshold of Deep Buried Coal Rock under Quasi-Static Strain Rate Based on Acoustic Emission
Published 2020-01-01“…Based on stage characteristics of acoustic emission energy, spatial distribution, and damage evolution, the use of damage evolution curve to determine stress threshold is proposed. In order to verify the rationality of the damage evolution method, the stress threshold values determined by damage evolution method and existing method are compared and analyzed. …”
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269
Corrosion behavior and mechanism of Cr10Mo1 steel subjected to different corrosive ions in simulated concrete pore solution
Published 2024-11-01“…Electrochemical methods, Pourbaix analysis of Fe–Cr–H2O system and DFT calculation were adopted to characterize corrosion behavior and reveal underlying mechanism. …”
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270
Comparative Analysis between Active Contour and Otsu Thresholding Segmentation Algorithms in Segmenting Brain Tumor Magnetic Resonance Imaging
Published 2020-12-01“…The selected algorithms to test our method are Active Contour and Otsu Thresholding algorithms. …”
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271
Machine learning approach for identifying and forecasting streamflow droughts in data limited basins of South Korea using threshold levels
Published 2025-05-01“…Models were developed and tested using inflow data and meteorological variables from four major South Korean dams. The Threshold Level Method (TLM) was applied to daily inflow data to define drought events, creating a time series for model training. …”
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272
Computer Vision-Based Concrete Crack Identification Using MobileNetV2 Neural Network and Adaptive Thresholding
Published 2025-02-01“…A dataset including 40,000 images was adopted and preprocessed using various thresholding techniques, of which adaptive thresholding was selected for developing the crack evaluation algorithm. …”
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273
FldtMatch: Improving Unbalanced Data Classification via Deep Semi-Supervised Learning with Self-Adaptive Dynamic Threshold
Published 2025-01-01“…This method typically introduces a threshold to utilize unlabeled data. …”
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274
MtAD-Net: Multi-Threshold Adaptive Decision Net for Unsupervised Synthetic Aperture Radar Ship Instance Segmentation
Published 2025-02-01“…A Local U-shape Feature Extractor (LUFE) is designed to project each pixel of SAR images into a high-dimensional feature space, and a Global Vision Transformer Encoder (GVTE) is designed to obtain global features, and then, we use the global features to obtain a probability vector, which is the probability of each CFAR threshold. We further propose a PLC-Loss to adaptively reduce the feature distance of pixels of the same category and increase the feature distance of pixels of different categories. …”
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275
BIA-derived muscle indicator thresholds for malnutrition risk prediction in children with β-thalassemia: a cross-sectional study
Published 2025-02-01“…The findings suggest that these thresholds could serve as effective references to assess nutritional status across different age groups, providing new perspectives for personalized nutritional management strategies.…”
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276
Spatial Spillover Effects of Digital Infrastructure on Food System Resilience: An Analysis Incorporating Threshold Effects and Spatial Decay Boundaries
Published 2025-04-01“…The grain system resilience index is measured using the entropy method. A spatial Durbin model is employed to estimate the impact of digital infrastructure on grain system resilience, and a panel threshold model is used to analyze the nonlinear effects of digital infrastructure on grain system resilience. …”
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277
The Restorative Effects of Three Commonly Used Materials on Hearing Thresholds in Patients with Austin-Kartush Type A Ossicular Defects
Published 2022-12-01“…Air-conduction (AC) and bone-conduction (BC) thresholds were calculated by averaging the threshold values for 500, 1,000, 2,000 and 3,000 Hz, and air-bone gap (ABG) values were calculated by subtracting the BC thresholds from the AC thresholds, preoperatively and postoperatively. …”
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278
The Effectiveness of Sub-Threshold Laser Versus Spironolactone for The Treatment of Central Serous Chorioretinopathy: A Systematic Review and Meta-Analysis
Published 2025-04-01“…Methods: A comprehensive search was conducted using PubMed, Cochrane, EMBASE, and Google Scholar for randomized controlled trials comparative and individual studies on spironolactone and sub-threshold laser in the treatment of CSCR. …”
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279
Optimal threshold of time interval from symptom onset to diagnosis for identification of severity and outcomes in acute symptomatic pulmonary embolism
Published 2025-12-01“…Nevertheless, it is not known how many days of OTD is the optimal threshold for the identification of severe PE or what differences exist in outcomes among PE patients classified by this threshold.Methods Patients with acute symptomatic PE were retrospectively studied to determine the optimal OTD threshold for identifying the severity and outcomes of PE. …”
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280
Threshold haemoglobin levels and the prognosis of stable coronary disease: two new cohorts and a systematic review and meta-analysis.
Published 2011-05-01“…Women tended to have lower threshold haemoglobin values (e.g, for MI 12.8 g/dl; 95% CI 12.1-13.5) but the shape and strength of association did not differ between the genders, nor between patients with angina and MI. …”
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