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6441
Models of symmetric three-layer waveguide structures with graded-index core and nonlinear optical liners
Published 2024-10-01“…By doing so it may be possible to find exact analytical solutions to nonlinear stationary wave equations describing explicitly the transverse electric field distribution of waveguide modes.Methods. The analytical methods of mathematical physics and the theory of special functions applied to nonlinear and waveguide optics are used herein.Results. …”
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6442
Special Issue on Contemporary Research Studies in Operations Research, Business Analytics, and Business Intelligence
Published 2025-06-01“…Mathematical Study of Dispersion of Nano Biosensors in an Artery with Multiple Stenosis: This work examines nano-biosensors in a diseased artery with multiple stenoses, determining the temperature, velocity of nanofluid, and transport coefficients. …”
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6443
Persian version of diabetes burnout scale among patients with type 2 diabetes: a validation study
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6444
Feasibility of YOLOX computer model-based assessment of knee function compared with manual assessment for people with severe knee osteoarthritis
Published 2025-01-01“…Abstract Objective This study aimed to assess the feasibility of computer model-based evaluation of knee joint functional capacity in comparison with manual assessment. Methods This study consisted of two phases: (1) developing an automatic knee joint action recognition and classification system on the basis of improved YOLOX and (2) analyzing the feasibility of assessment by the software system and doctors, identifying the knee joint function of patients, and determining the accuracy of the software system. …”
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6445
Construction of nitrogen critical dilution curve and differences in nitrogen nutrition characteristics in different organs of maize varieties with contrasting nitrogen efficiencies
Published 2025-06-01“…IntroductionThis study aimed to establish and verify a critical nitrogen dilution model for different organs of maize varieties with different nitrogen efficiencies and clarify differences in nitrogen nutritional characteristics.MethodsTwo maize varieties (nitrogen-efficient variety ZH 311 and nitrogen-inefficient variety XY 508) were grown under four nitrogen levels to evaluate N dynamics and dry matter accumulation.ResultsThe results showed that the critical nitrogen concentration dilution curves based on root dry matter, stem-sheath dry matter, leaf dry matter, and plant dry matter, with coefficient of determination (R²>0.90), all reached significant levels and could be used for nitrogen nutrition diagnosis of maize. …”
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6446
Bearing-Only Multi-Target Localization Incorporating Waveguide Characteristics for Low Detection Rate Scenarios in Shallow Water
Published 2024-12-01“…The global target localization results are obtained using the proposed method, which incorporates confidence coefficients derived from the characteristic spectrum and geometric intersection information from the bearing lines. …”
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6447
The effect of climatic variables on vegetation indices (Case study: Orange orchards in Hassan Abad, Darab County
Published 2024-12-01“…Additionally, the variables of maximum temperature and minimum humidity have a significant negative effect on both the NDVI and EVI. To determine the significance of each independent variable in predicting the dependent variables, the artificial neural network method was employed. …”
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6448
From ocean to cage: evaluating the culture feasibility of Black-spotted croaker (Protonibea diacanthus)
Published 2025-01-01“…IntroductionThis study evaluates the feasibility of culturing the high-value marine fish Protonibea diacanthus in a polyculture system with Indian pompano (Trachinotus mookalee) using a marine cage culture setup. The study aims to determine growth performance, feed efficiency, and the potential of P. diacanthus as a candidate species for polyculture.MethodsWild-caught P. diacanthus were reared in six high-density polyethylene sea cages (Inner Diameter: 6 m; Outer Diameter: 7 m; Depth: 4.5 m; Area: 28.29 m²; Volume: 127.29 m³). …”
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6449
Evaluation of dynamic characteristics of a linear time-varying system
Published 2025-02-01“…Design / Method / Approach. Mathematical models of a time-varying system and a second-order link are used, along with a criterion that determines the transfer function coefficients. …”
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6450
Evaluation of dynamic characteristics of a linear time-varying system
Published 2025-02-01“…Design / Method / Approach. Mathematical models of a time-varying system and a second-order link are used, along with a criterion that determines the transfer function coefficients. …”
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6451
Assessment of the construct of paranoia in a non-clinical sample: validation of the paranoia scale based on a continuum model
Published 2025-07-01“…Methods A total of 470 university students were recruited using a convenience sampling method over a six-month period. …”
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6452
Establishment of jujube anther culture and plant regeneration system
Published 2025-07-01“…By optimizing the ratios of plant growth regulators, carbon sources, and cultivation conditions, an efficient anther culture regeneration system was established. [Methods] Young floral buds of Dongzao, Junzao and Qiyuexian at the green to yellowish-green stage (pollen at the late uninucleate stage) were used as the experimental materials. …”
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6453
Convolutional neural network-assisted design and validation of terahertz metamaterial sensor
Published 2025-05-01“…In the inverse design stage, a predictive model for estimating the size of the TMS was developed by applying one-dimensional convolution to the transmission coefficients. The training dataset employed for forward optimization and inverse design achieved coefficients of determination (R2) of 0.99 and 0.99, respectively, with corresponding mean absolute error (MAE) values of 3.90 and 1.04. …”
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6454
Assessing the impact of macroeconomic variables on environmental quality in the MENA using logarithmic mean divisia and co-integration panel
Published 2017-03-01“…To long-term analysis, After determining the input values related to MENA region, The panel data method was used that indicate the presence of co-integration in the model, Co-integration concept is reminiscent of a long-run equilibrium relationship between economic systems move over time towards it (Noferesti, 1999). …”
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6455
A global daily seamless 9 km vegetation optical depth (VOD) product from 2010 to 2021
Published 2025-06-01“…Results show that the seamless SMOS (SMAP) dataset is evaluated with a coefficient of determination (<span class="inline-formula"><i>R</i><sup>2</sup></span>) of 0.855 (0.947) and a root mean squared error (RMSE) of 0.094 (0.073) for the simulated real missing masks. …”
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6456
Síndrome de burnout y calidad de sueño en estudiantes de Medicina en la etapa clínica de la Universidad Peruana Unión (UpeU) durante 2022
Published 2025-03-01“…Methods: This study included 253 clinical-stage medical students from the School of Human Medicine at Universidad Peruana Unión. …”
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6457
College Community–Based Physical Activity Support at a Public University During the COVID-19 Pandemic: Retrospective Longitudinal Analysis of Intra- Versus Interpersonal Components...
Published 2025-06-01“…MethodsThe university used a commercial platform for a 30-day PA promotion program during April 2021 with intrapersonal (step-tracker syncing, education, self-monitoring, and motivational messaging) and interpersonal (friend interactions and team games) components. …”
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6458
Features of Lipid Spectrum and Insulin Resistance Parameters in Patients with Type 2 Diabetes Mellitus and Cardiac Autonomic Neuropathy and Appropriateness of Simvastatin and Omega...
Published 2017-09-01“…The concentration of glucose, HbA1c, immunoreactive insulin (IRI) in the blood were determinated, the insulin resistance index (HOMA-IR) was calculated. …”
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6459
Investigating the Mediating Role of Self-Efficacy in the Relationship between Job Demand and Role Ambiguity with Employee Well-Being
Published 2025-03-01“…Hence, this research sought to test a model of causal factors affecting employee well-being with the mediation of self-efficacy among the employees of Razi University of Kermanshah. The method of the present research was practical in terms of its purpose and descriptive-survey in terms of data collection. …”
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6460
Correction of the optimal regulator based on solving the inverse problem of optimal stabilization with vector control
Published 2023-10-01“…The state vector is assumed to be completely available for measurement.Method. Based on the optimality ratio linking the weight coefficients of the quadratic quality functional and the optimal gain matrix, which closes the control object, it is proposed to use a numerical method for determining the functional matrices. …”
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