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461
Fertility and the environment in a natural resource dependent economy: Evidence from Petén, Guatemala
Published 2004-07-01“…The rapid in-migration of subsistence maize farmers has converted much of the Petén’s forests to agricultural fields. Population dynamics have been transformed in that virtually all farm families have arrived since the 1970s and that total fertility rates exceed the national rural mean. …”
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462
Reliability Analysis of the Reconfigurable Integrated Modular Avionics Using the Continuous-Time Markov Chains
Published 2018-01-01“…Through the parameter sensitivity analysis, different failure rate λ and priority order of different modules are chosen to analyze their impact on system reliability, which can provide guidance to improve the reliability of the IMA system during a dynamic reconstruction process and optimize resource allocation.…”
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463
Automatic Single-Cell Harvesting for Fetal Nucleated Red Blood Cell Isolation on a Self-Assemble Cell Array (SACA) Chip
Published 2024-12-01“…In this study, we introduce a novel self-assembled cell array (SACA) chip system, a microfluidic-based platform designed to efficiently settle and align cells into a monolayer at the chip’s base within five minutes using lateral flow dynamics and gravity. This system is integrated with a fully automated, multi-channel fluorescence scanning module, enabling the real-time imaging and molecular profiling of fetal cells through fluorescence-tagged antibodies. …”
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464
Beat‐to‐Beat Blood Pressure Variability Within 24 Hours of Ischemic Stroke Onset: A Potential Predictor of Functional Prognosis
Published 2024-08-01“…Background Beat‐to‐beat blood pressure variability (BPV) is based on each heartbeat and represents a dynamic equilibrium process modulated by artery and cardiac involvement of pressure‐receptive reflexes. …”
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465
An integrated neurophenomenological framework for naturalistic assessment of work-related stressors in healthcare professionals: a pilot study in neuro-surgery
Published 2025-04-01“…Wearable devices enable the collection of granular physiological data—heart rate, heart rate variability, electrodermal activity, and skin temperature—while ESM provides real-time subjective insights, reducing recall biases. …”
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466
Predictive Modeling of Covid-19 Data in the US: Adaptive Phase-Space Approach
Published 2020-01-01“…<italic>Results:</italic> Four waves have passed the time-point of peak infection rate, with the fifth expected to peak on July 20th. …”
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467
Research on cooperative thermal management of air conditioning system and battery liquid cooling system for pure electric vehicle
Published 2025-08-01“…The synergistic dual-evaporator system can dynamically adjust the evaporator operating state and refrigerant flow rate by innovating the refrigerant flow path and applying an intelligent control strategy to optimize the energy efficiency of the system. …”
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468
Toward the calibration of 2D thermomechanical simulations of magma poor passive continental margins: method, validation and case example
Published 2024-05-01“…This method integrates a new kinematic module into the pTatin2D code, allowing for calibrating numerical simulations with regional geological and geophysical dataset over time while solving for mechanical balance using Stokes flow to ensure that crustal deformation remains consistent with mantle dynamics. …”
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469
GaN Power Amplifier with DPD for Enhanced Spectral Integrity in 2.3–2.5 GHz Wireless Systems
Published 2025-07-01“…The design employs load modulation and dynamic biasing to optimize power-added efficiency (PAE) and linearity. …”
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470
Spectrum Allocation Using Integer Linear Programming and Kerr Optical Frequency Combs
Published 2024-11-01“…The proposed approach offers a flexible cost function that prioritizes system constraints such as transmission distance and bandwidth requirements, resulting in significant improvements to the bandwidth blocking rate (BBR). By integrating multilevel modulation and using wavelengths generated by MRRs, this method efficiently handles up to 1075 requests, achieving a BBR of zero. …”
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471
Influence of concentration on the steady and oscillatory shear behavior of umbu pulp Influência da concentração no comportamento reológico nos estados estacionário e oscilatório de...
Published 2008-02-01“…In this experimental work the rheological behavior of umbu pulp has been studied by shear flow (pseudoplasticity, apparent viscosity) and in oscillatory mode (dynamic modules) in the linear domain of viscoelasticity. …”
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472
A novel droop coefficient to realize rapid SOC balance for distributed energy storage systems
Published 2025-03-01“…This method involves an innovative approach that integrates an improved state-of-charge equalization control integrated with a sigmoid function to adaptively adjust the droop coefficient, aiming to accelerate the state-of-charge equalization rate. Furthermore, a virtual voltage drop equalization control is designed to dynamically adjust the output current of each distributed energy storage unit through a simple proportional–integral controller. …”
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473
RF-YOLOv7: A Model for the Detection of Poor-Quality Grapes in Natural Environments
Published 2025-02-01“…RF-YOLOv7 builds upon the YOLOv7 architecture by integrating four Contextual Transformer (CoT) modules to improve target-detection accuracy, employing the Wise-IoU (WIoU) loss function to enhance generalization and overall performance, and introducing the Bi-Former attention mechanism for dynamic query awareness sparsity. …”
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474
A Confidential Transmission Method for High-Speed Power Line Carrier Communications Based on Generalized Two-Dimensional Polynomial Chaotic Mapping
Published 2025-07-01“…The experimental results demonstrate that this method can effectively establish a high-speed power line carrier communication network and encrypt information. The maximum error rate obtained by this method is 0.051, and the minimum error rate is 0.010, confirming its ability to ensure secure transmission in high-speed power line carrier communication while improving communication confidentiality.…”
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475
Application of time series database technology in coal mine safety monitoring system
Published 2025-08-01“…The system integrates real-time anomaly detection and trend prediction modules, dynamically identifying gas concentration mutation events through a sliding window mechanism, with a warning accuracy rate of 92.6%. …”
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476
Astrocytic inhibition of lateral septal neurons promotes diverse stress responses
Published 2024-11-01“…These results suggest that the dynamic interactions between astrocytes and neurons within the LS modulate physiological and behavioral responses to stressful experiences.…”
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477
PSTR: A Test Case Reuse Method Based on Path Similarity
Published 2025-01-01“…The proposed PSTR method consists of three core modules: static analysis, dynamic analysis, and reuse. …”
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478
A Well-Defined Readily Releasable Pool with Fixed Capacity for Storing Vesicles at Calyx of Held.
Published 2016-04-01“…Here we confirm that RRPs at calyces of Held from 14 to 21 day old mice have a fixed capacity for storing vesicles that is not modulated by Ca2+. Discrepancies with previous studies are explained by a dynamic flow-through pool, established during heavy use, containing vesicles that are released with low probability despite being immediately releasable. …”
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479
Polarization Division Multiplexing CV-QKD with Pilot-Aided Polarization-State Sensing
Published 2024-11-01“…In this paper, we utilize polarization division multiplexing (PDM) to enhance spectral efficiency and significantly increase the key rate of the CV-QKD system. To address dynamic changes in the state of polarization (SOP) in Gaussian modulated coherent states (GMCS) signals due to polarization impairment effects, we designed a time-division multiplexing pilot scheme to sense and recover changes in SOP in GMCS signals, along with other digital signal processing methods. …”
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480
AMFEF-DETR: An End-to-End Adaptive Multi-Scale Feature Extraction and Fusion Object Detection Network Based on UAV Aerial Images
Published 2024-09-01“…Specifically, to extract target features from complex backgrounds more accurately, we propose an adaptive backbone network, FADC-ResNet, which dynamically adjusts dilation rates and performs adaptive frequency awareness. …”
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