The removal capacity of aftertreatment technologies equipped on diesel exhaust in intermediate and semivolatile organic compounds (I/SVOCs) remains unclear. This study quantified the effect of typical aftertreatment technologies (China VI) on diesel engine-emitted I/SVOCs, related secondary organic aerosol (SOA), and toxic effects. The equipped aftertreatment devices could mitigate the emission factors (EFs) by 70.
View Article and Find Full Text PDFThe health risks of particulate matters (PMs) associated with their chemical components and sizes have attracted increasing attention. However, the toxic effect of critical toxic components in size-segregated PMs from specific emission source remains unclear. We present the toxicity of size-segregated elements in PMs via integrating toxic analysis and online single-particle measurements of real-world industrial plants, vehicles, and road dust.
View Article and Find Full Text PDFSci Total Environ
December 2024
Acidity, generally expressed as pH, plays a crucial role in atmospheric processes and ecosystem evolution. Atmospheric acidic aerosol, triggering severe air pollution in the industrialization process (e.g.
View Article and Find Full Text PDFConstruction of a "net-zero-emission" system through CO hydrogenation to methanol with solar energy is an eco-friendly way to mitigate the greenhouse effect. Traditional CO hydrogenation demands centralized mass production for cost reduction with mass water electrolysis for hydrogen supply. To achieve continuous reaction with intermittent and fluctuating flow of H on a small-scale for distributed application scenarios, modulating the catalyst interface environment and chemical adsorption capacity to adapt fluctuating reaction conditions is highly desired.
View Article and Find Full Text PDFNanocrystalline alumina-zirconia-based eutectic ceramics fabricated with high-energy beams and composed of ultrafine, three-dimensionally entangled, single-crystal domains are a special category of eutectic oxides that exhibit exceptionally high-temperature mechanical properties, such as strength and toughness as well as creep resistance. This paper aims to provide a comprehensive review on the basic principles, advanced solidification processes, microstructure and mechanical properties of alumina-zirconia-based eutectic ceramics, with particular attention to the status of the art on a nanocrystalline scale. Some basic principles of coupled eutectic growth are first introduced based on previously reported models, followed by concise introduction of solidification techniques and the control strategy of solidification behavior from the processing variables.
View Article and Find Full Text PDFCobalt oxide (CoO ) catalysts are widely applied in CO hydrogenation but suffer from structural evolution during the reaction. This paper describes the complicated structure-performance relationship under reaction conditions. An iterative approach was employed to simulate the reduction process with the help of neural network potential-accelerated molecular dynamics.
View Article and Find Full Text PDFPurpose: Thrombus aspiration in ST-elevation myocardial infarction (STEMI) with high thrombus burden did not improve clinical outcomes. The clinical efficacy of the bailout use of platelet glycoprotein IIb/IIIa inhibitors (GPIs) in this clinical scenario remains unknown.
Methods: We assessed associations between GPI use and in-hospital major bleeds, ischemic events, and mortality among STEMI patients treated with percutaneous coronary intervention (PCI) and thrombus aspiration in a nationwide acute coronary syndrome registry (the Improving Care for Cardiovascular Disease in China-Acute Coronary Syndrome project).
Purpose: It is unknown if acute coronary syndrome (ACS) patients presenting with advanced Killip class (III/IV) would benefit from early statin therapy. Therefore, we aimed to explore the relationship between statin therapy within the first 24 h of medical contact and in-hospital outcomes in this patient population in a nationwide registry.
Method: In the Improving Care for Cardiovascular Disease in China-ACS project, among ACS patients presenting with Killip class III/IV, we performed the following three analyses: (i) the associations between early statin therapy and risks for in-hospital mortality and ischaemic events; (ii) the dose effect of statins on mortality and (iii) the interaction between low-density lipoprotein cholesterol (LDL-C) levels and statins on mortality.
Aims: Information regarding β-blocker use and bleeding risk in patients on antithrombotic therapy in contemporary practice is limited. We examined the association between early (within the first 24 hours) oral β-blocker therapy and major in-hospital bleeds among acute coronary syndrome (ACS) patients treated with percutaneous coronary intervention (PCI).
Methods And Results: In the Improving Care for Cardiovascular Disease in China-ACS project, among patients without contraindications to β-blocker, we examined the association between early oral β-blocker exposure [users/non-users, dosing, and type (metoprolol vs.
YO doped ZrO (YSZ) ceramic material is used to protect alloy components worked in high-temperature. But its phase transformation between tetragonal phase and monoclinic phase occurred at 1150 °C leads to YSZ invalid. Therefore, enhancing the phase stability of YSZ is necessary for meeting the demands of the development of thermal barrier coatings (TBC).
View Article and Find Full Text PDFBackground: Immune abnormalities and inflammatory responses play critical roles in progression of hypertension. Basic studies have confirmed that Th17 cell and related cytokines are important in promoting hypertension-mediated organ damage, but few clinical evidences have been published. Therefore, our study aimed to investigate the relationship between Th17 cell and its related cytokines and hypertension-mediated organ damage in human.
View Article and Find Full Text PDFPurpose: Previous reports demonstrated a bleeding avoidance potential of angiotensin converting enzyme inhibitor (ACEI)/angiotensin receptor blocker (ARB) and β-blocker. It remains unclear whether early guideline-directed medical therapy [GDMT, i.e.
View Article and Find Full Text PDFAims: Emerging evidence has linked cholesterol metabolism with platelet responsiveness. We sought to examine the dose-response relationship between low-density lipoprotein cholesterol (LDL-C) and major in-hospital bleeds in acute coronary syndrome (ACS) patients.
Methods And Results: Among 42 378 ACS patients treated with percutaneous coronary intervention (PCI) enrolled in 240 hospitals in the Improving Care for Cardiovascular Disease in China-ACS project from 2014 to 2019, a total of 615 major bleeds, 218 ischaemic events, and 337 deaths were recorded.
Eur Heart J Acute Cardiovasc Care
December 2021
Aims: Previous observations revealed a negative association between low-density lipoprotein cholesterol (LDL-C) and clinical outcomes following myocardial infarction, i.e., the lower level the higher mortality, which was referred to as lipid paradox.
View Article and Find Full Text PDFACS Appl Mater Interfaces
February 2021
The development of cathode materials with high catalytic activity and low cost is a challenge for CO electrolysis based on solid oxide electrolysis cells. Herein, we report a low-cost and highly active metallic Fe nanoparticle-decorated Ruddlesden-Popper (La, Sr)FeO cathode catalyst (Fe-RPLSF), which shows a high oxygen vacancy concentration and robust CO reduction rate. At 850 °C, the current density of the electrolysis cell with the Fe-RPLSF cathode reaches -1920 mA cm at a voltage of 1.
View Article and Find Full Text PDFObjectives: This study aimed to explore the expression of hypoxia-inducible factor 1α (HIF-1α) in chondrocytes with the healing process after unilateral mandibular condylar neck osteotomy and to verify its effect on bone repair.
Methods: Models of mandibular condylar neck osteotomy were established in mice. Transgenic mice with heterozygous deficiency in HIF-1α gene in chondrocytes were used.
Apoptotic osteocytes were found in the hypoxic bone microenvironment in osteoporosis, osteotomy, orthodontic tooth movement and periodontitis, and played a key role in bone remolding and the differentiation of osteoclasts. Hypoxia inducible factor-1α(HIF-1α), as a transcription factor under hypoxic conditions, has been confirmed to participate in cell apoptosis. However, the effect of HIF-1α on osteocytes apoptosis and the osteocyte-mediated osteoclast formation remains elusive.
View Article and Find Full Text PDFPseudogenes, which are long noncoding RNAs that originate from protein-coding genes, have been suggested to play important roles in disease. Although studies have revealed high expression of legumain (LGMN) in many types of tumors, the regulation of LGMN remains largely unknown. Here, we found that a novel LGMN pseudogene (LGMNP1) was upregulated in glioblastoma (GBM) tissues and high LGMNP1 expression in GBM cells enhanced proliferation and invasion.
View Article and Find Full Text PDFThe rapid bone remodeling after osteotomy has been reported for a long time. However, the underlying mechanism promoting the active bone reconstruction was still to be elucidated. Since not only the bone, blood vessels, and supportive tissues, but also the local microenvironment were destroyed, if the changes on the cell metabolism was contributed to the accelerated bone remodeling came into sight.
View Article and Find Full Text PDFThe Ser/Thr protein kinase, RSK, is associated with oncogenesis, and therefore, there are ongoing efforts to develop RSK inhibitors that are suitable for use in vivo. SL0101 is a natural product that demonstrates selectivity for RSK inhibition. However, SL0101 has a short biological half-life in vivo.
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