Publications by authors named "Yao Qu"

Hydraulic shear has been widely accepted as one of the essential factors modulating phytoplankton growth. Previous experimental studies of algal growth have been conducted at the macroscopic level, and direct observation at the cell scale has been lacking. In this study, an algal-cell dynamic continuous observation platform (ACDCOP) is proposed with a parallel-plate flow chamber (PPFC) to capture cellular growth images which are then used as input to a computer vision algorithm featuring a pre-trained backpropagation neural network to quantitatively evaluate the volumes and volumetric growth rates of individual cells.

View Article and Find Full Text PDF

The durability of impermeable grouting materials in actual environment is crucial for the sustainable engineering application. This study investigates the performance evolution and degradation mechanisms of electrolytic manganese residue (EMR) based grouting materials subjected to wet-dry cycles in three distinct environments: pure water (PW), karst groundwater (KG), and EMR leachate (EL). Results demonstrate that material durability is significantly influenced by both environmental exposure conditions and compositional characteristics.

View Article and Find Full Text PDF

Leukemia, as the second most prevalent hematological malignancy, could disrupt the production of healthy blood cells in the bone marrow, leading to anemia, neutropenia, and thrombocytopenia, and constitutes a significant global health burden. Chemotherapy remains a cornerstone of leukemia treatment, but drug resistance and severe adverse effects are the main culprits for its failure in treating leukemia, thereby creating an urgent imperative to develop innovative anti-leukemia agents. Hydroxamic acid derivatives, recognized as prominent histone deacetylase (HDAC) inhibitors, represent a promising class of agents in leukemia therapy, leveraging epigenetic modulation, multi-target activity, and synergistic potential to address unmet drug resistance and toxicity needs.

View Article and Find Full Text PDF

We assessed the health risks associated with atmospheric heavy metals (HMs: Mn, Zn, Co, Cu, V, Ni, and metalloid As) and elemental carbon (EC) at three sampling sites across the Tibetan Plateau (TP). The highest annual concentrations of HMs (80.7 ng m) were observed in the northeastern TP (Qinghai Lake), while the highest annual concentration of EC (1.

View Article and Find Full Text PDF

To reduce the negative impact of antibiotics on the water environment, shaddock peels biochar co-doped with iron and cobalt (Fe-Co@SPC) was employed in the peroxymonosulfate (PMS) system to eliminate tetracycline (TC). The obtained Fe-Co@SPC could efficiently activate PMS and degrade 95.6 % of TC within 1 h at pH 9.

View Article and Find Full Text PDF

Unlabelled: Treatment of cancer patients with tyrosine kinase inhibitors (TKIs) often results in hypertension, but the underlying mechanism remains unclear. This study aimed to examine the role of mitochondrial morphology and function, particularly mitochondria-associated endoplasmic reticulum membranes (MAMs), in sunitinib-induced hypertension.

Methods: Both in vitro and in vivo experiments performed to assesse reactive oxygen species (ROS), nitric oxide (NO), endothelium-dependent vasorelaxation, systemic blood pressure, and mitochondrial function in human umbilical vein endothelial cells (HUVECs) and C57BL/6 mouse aortic endothelial cells, under vehicle or sunitinib treatment condition.

View Article and Find Full Text PDF

With the growing need for precise campus electricity management, understanding load patterns is crucial for improving energy efficiency and optimizing energy use. However, detailed electricity load data for campus buildings and their internal equipment is often lacking, hindering research. This paper introduces an energy consumption monitoring dataset from The Hong Kong University of Science and Technology (HKUST) campus in Hong Kong, comprising data from over 1400 meters across more than 20 buildings and collected over two and a half years.

View Article and Find Full Text PDF

Several gallylenes [LGaM(THF)] stabilized by an α-diimine ligand (L=[(2,6-iPrCH)NC(Ph)] ; M=Li, n=3, 3-Li; M=Na, n=4, 3-Na; M=K, n=1, 3-K) were prepared, which display diverse reactivities toward carbon dioxide and its sulfurized analogues. The reaction of 3 with CO yielded a trimeric carbonate complex [{LGa(CO)}{μ-K(THF)}] (4) and a dinuclear oxo-carbonate complex [K(THF)][LGa(μ-CO)(μ-O)GaL] (5) in one pot through reductive disproportionation of CO. For CS, two ethenetetrathiolate gallium complexes, [M(Solv)][LGa(μ-CS)GaL] (M=Na, Solv=THF, 6; M=K, Solv=DME, 7), were obtained via reductive coupling of CS.

View Article and Find Full Text PDF

Nitrogen is a vital nutrient for the growth of microalgae. Understanding the mechanism of nitrogen uptake by algae plays a crucial role in addressing and mitigating. Harmful algal blooms.

View Article and Find Full Text PDF

The success of organizational change often hinges on the perception of fairness within a change unit. This group-level organizational change fairness is crucial for enhancing proactive motivation states and fostering positive change-oriented organizational citizenship behavior (OCB). Rooted in the proactive motivation model, this study establishes a comprehensive multilevel framework to investigate the influence of group-level organizational change fairness on employees' change-oriented OCB.

View Article and Find Full Text PDF

Emergency management of municipal solid waste during public health emergencies is crucial for curbing the spread of viruses and controlling environmental pollution. Most existing solid waste management systems, are designed with a top-down approach, covering multiple industries and sectors. However, these systems often fail to effectively manage potentially viral solid waste in household waste, which impedes effective solid waste management during public health emergencies and increases the risk of viral outbreaks.

View Article and Find Full Text PDF

The α-diimine-ligated Zn-Zn-bonded compound [K(THF)][LZn-ZnL] (, L = [(2,6-PrCH)NC(Me)]) displays diverse reactivities toward a variety of ketones. In the reaction of with benzophenone or 4,4'-di--butylbenzophenone, a multielectron transfer process was observed to give bimetallic (Zn/K) complexes with both ketyl radical fragments and C-C coupled pinacolate moieties (products and ). In contrast, treating with 9-fluorenone only afforded pinacolate complex .

View Article and Find Full Text PDF
Article Synopsis
  • Tuberculosis caused by Mycobacterium tuberculosis complex (MTBC) remains a major global health issue, emphasizing the need for effective detection methods to differentiate its main pathogens.
  • The study introduces a new testing method called triplex droplet digital polymerase chain reaction (ddPCR), which uses different probe fluorophores to accurately target genes associated with three pathogens: MTBC, its variants, and BCG.
  • The results show that triplex ddPCR is more sensitive and specific than current methods, detecting lower levels of pathogens in various sample types (including milk, tissue, and swabs) with high repeatability and without cross-reaction to other organisms.
View Article and Find Full Text PDF

In the face of escalating urban pluvial floods exacerbated by climate change, conventional roof systems fall short of effectively managing precipitation extremes. This paper introduces a smart predictive solution: the Smart Internal Drainage Roof (SIDR) system, which leverages forecasted data to enhance the mitigation of pluvial floods in Central Business District (CBD) areas. Unlike traditional approaches, SIDRs utilize a synergistic combination of Rule-based Control (RBC) and Model Predictive Control (MPC) algorithms, tailored to optimize the operational efficiency of both grey and green roofs.

View Article and Find Full Text PDF
Article Synopsis
  • Black carbon (BC) and brown carbon (BrC) on the Tibetan Plateau impact climate change and glacial melting, but collecting data is tough due to the region's high altitude.
  • This study used a random forest algorithm to combine satellite data and ground measurements from 2018-2021, producing spatial data on BC and BrC concentrations at a fine resolution for the years 1980, 2000, and 2020.
  • The results showed peak BC levels in 2000, with BC concentrations being 3-4 times higher than BrC, especially prevalent in the southeastern TP, indicating an increasing importance of BC over the decades.
View Article and Find Full Text PDF

Heteroleptic, bimetallic (Mg/K) cyclopentadienyl complexes (2-4) were synthesized by the reaction of the Mg-Mg-bonded compound [K(THF)][LMg-MgL] (1, L = [(2,6-iPrCH)NC(CH)]) with cyclopentadiene derivatives, 6,6-dimethylfulvene, 6-(dimethylamino)fulvene, or 1,2,3,4-tetramethyl-1,3-cyclopentadiene. The reactions proceed through diverse pathways, including hydrogen abstraction, C-C coupling, and dehydrogenation, depending on the property of the polyene substrate, thus providing an access to alkali/alkaline earth metal cyclopentadienyl complexes.

View Article and Find Full Text PDF

Neuropathic pain (NP) is a common debilitating chronic pain condition with limited effective therapeutics. Further investigating mechanisms underlying NP is therefore of great importance for discovering more promising therapeutic targets. In the current study, we employed high-throughput RNA sequencing to explore transcriptome profiles of mRNAs and microRNAs in the dorsal root ganglia (DRG) following chronic constriction injury (CCI) and also integrated published datasets for comprehensive analysis.

View Article and Find Full Text PDF

The 'extreme' emission abatement during the lockdown (from the end of 2019 to the early 2020) provided an experimental period to investigate the corresponding source-specific effects of aerosol. In this study, the variations of source-specific light absorption (b) and direct radiative effect (DRE) were obtained during and after the lockdown period by using the artificial neural network (ANN) and source apportionment environmental receptor model. The results showed that the b decreased for all sources during the two periods.

View Article and Find Full Text PDF

The CO and CO levels in air samples from the northern foot of the Qinling Mountains (Xi'an, China) were determined. In 2021, a hexacopter unmanned aerial vehicle sampled air at different heights, from near-ground to 2000 m. The objectives of this study were to determine vertical characteristics of CO and CO, the sources of different-height CO, and the influence of air mass transport.

View Article and Find Full Text PDF
Article Synopsis
  • PM pollution in mountain-basin urban areas is complex due to topography and high emissions, necessitating effective source apportionment for local mitigation strategies.
  • A study in Xi'an identified major PM sources as biomass burning, coal combustion, traffic, mineral dust, industrial emissions, and secondary pollutants, with over 48% of PM originating locally.
  • The analysis revealed that long-range transported PM significantly affects source contributions, highlighting the need for regional collaboration to reduce uncertainty in pollution source identification and improve overall mitigation efforts.
View Article and Find Full Text PDF

Improving hydrodynamic conditions is considered an effective method for facilitating the eutrophication management. However, the effect of hydrodynamic conditions on algal growth has rarely been quantified. In this work, a eutrophication model was developed and flow velocity was introduced into the algae growth kinetic formula to simulate the dynamics of algae growth in a drinking water source reservoir in East China.

View Article and Find Full Text PDF

Air pollution continues to be a serious problem in Xi'an. A heavy pollution process and formation mechanism were investigated in Xi'an in January 2019 using multi-source methods (such as material balance and sulfur/nitrogen oxidation rate (SOR/NOR)). The multi-source data included the concentrations of PM, PM, SO, NO, CO, and O; the chemical components of PM; the meteorological records of ground and vertical observations; the atmospheric reanalysis data.

View Article and Find Full Text PDF

The α-diimine-ligated dimagnesium(I) compound [K(thf) ] [LMg-MgL] (1, L=[(2,6-iPr C H )NC(Me)] ) displays diverse reactivities toward carbodiimides (RN=C=NR) with different R substituents. In the reaction of 1 with Me SiNCNSiMe , one of the easily leaving trimethylsilyl groups is lost to yield the Me SiNCN moiety that either bridges two Mg centers (2) or terminally coordinated (3). In contrast, with the similarly bulky tBuNCNtBu, the carbodiimide inserts into Mg-Mg bond with accompanying C-H activation of a ligand or solvent (products 4 and 5).

View Article and Find Full Text PDF

Fusarium asiaticum is an epidemiologically important pathogen of cereal crops in east Asia, accounting for both yield losses and mycotoxin contamination problems in food and feed products. FaWC1, a component of the blue-light receptor White Collar complex (WCC), relies on its transcriptional regulatory zinc finger domain rather than the light-oxygen-voltage domain to regulate pathogenicity of , although the downstream mechanisms remain obscure. In this study, the pathogenicity factors regulated by FaWC1 were analyzed.

View Article and Find Full Text PDF