Resultados de búsqueda - Lei Feng

In Northeast China, due to long-term, high-intensity continuous cultivation of black soil, the practice of “overuse with insufficient nurturing” has led to severe degradation of the black soil. Straw return is a crucial strategy for enhancing soil organic matter (SOM). However, the mechanism of comb...

Descripción completa

Traditional supervisory control methods for the nonblocking control of discrete event systems often suffer from exponential computational complexity. Reinforcement learning-based approaches mitigate state explosion by sampling many random sequences instead of computing the synchronous product of mul...

Descripción completa

<i>Platycrater arguta</i> (Hydrangeaceae), a rare and endangered Tertiary relict shrub endemic to East Asia, holds significant ecological and evolutionary value. However, the <i>P. arguta</i> mitochondrial (mt) genome remains unexplored, limiting insights into its cytoplasmic...

Descripción completa

Carbon emission estimation for power systems is essential for identifying emission responsibilities and formulating effective mitigation measures. Current carbon emission prediction methods for power systems exhibit limited computational efficiency and inadequate noise immunity under complex operati...

Descripción completa

Developing safe and efficient cryoprotectants is critical for effective cryopreservation in biomedical applications. Inspired by natural antifreeze proteins (AFPs), a series of linear and star-shaped peptoids featuring isopropanol side chains to mimic the amphiphilic characteristics of threonine wer...

Descripción completa

Coalbed methane (CBM), a significant unconventional natural gas resource, holds a crucial position in China’s ongoing energy structure transformation. However, the inherent low permeability, high brittleness, and strong sensitivity of CBM reservoirs to drilling fluids often lead to severe formation...

Descripción completa

ABSTRACT Mammals rely on an intricate network of circadian clocks to regulate daily metabolic and physiological processes throughout the body. The liver, as a key peripheral organ, plays a crucial role in coordinating circadian rhythms and metabolic regulation. Bats, the only mammals capable of true...

Descripción completa

To investigate the role of potassium in the regulation of potato growth, dynamic changes in starch–sugar metabolism, and processing quality. In this study, “Gannong Potato No. 9” was used as the test material, and five potassium concentration treatments of 0, 9.4, 23.5, 28.5, and 37.6 mmol/L were se...

Descripción completa

Summary: Diabetes mellitus with hypertension (DM + HTN) markedly elevates cardiovascular risks, yet its predictors remain unclear. Analyzing 5210 DM patients from three cohorts, this study identified serum cystatin C (CysC) as an independent risk factor for DM + HTN through univariate and multivaria...

Descripción completa

ABSTRACT Wetlands, highly biodiverse yet fragile ecosystems, play vital roles in sustaining waterbird survival and breeding. This study evaluated the impacts of extreme drought on waterbird populations in Dongting Lake and surrounding wetlands by analyzing land use, vegetation, and human disturbance...

Descripción completa

Abstract BackgroundGiven the challenges faced during percutaneous coronary intervention (PCI) for heavily calcified lesions, accurately predicting PCI success is crucial for enhancing patient outcomes and optimizing procedural strategies. ObjectiveThis study aimed...

Descripción completa

Using iron ore tailings (IOT) in asphalt pavement construction enables large-scale utilization of industrial solid waste, conserves non-renewable resources, and reduces carbon emissions. However, the unique physicochemical properties and low pozzolanic activity of IOT pose challenges to its effectiv...

Descripción completa

Background: Central nervous system (CNS) diseases pose significant therapeutic challenges owing to their complex pathophysiology and the restrictive nature of the blood-brain barrier (BBB).Introduction: Plant-derived exosome-like nanoparticles (PDELNs) exhibit intrinsic bioactivity, low immunogenici...

Descripción completa

The small heat shock protein (sHSP) chaperones are required for protecting cellular proteins from damage, as well as re-folding denatured proteins. This study was carried out to investigate the temporal-spatial expression patterns of two sHSP genes in rice. These two genes, named as Os16.9A and Os16...

Descripción completa

ObjectiveThe objective of this study was to compare the clinical outcomes of intracytoplasmic sperm injection (ICSI) with fresh versus cryopreserved sperm retrieved via microdissection testicular sperm extraction (mTESE) in patients with Klinefelter syndrome (KS).DesignA retrospective cohort study w...

Descripción completa