Publications by authors named "Jingnan Hu"

Industrial solvent use is a major source of volatile organic compound (VOC) emissions, posing significant environmental and health risks. However, the driving factors behind VOC reduction are rarely discussed for the specific emission source, impeding future regulatory efforts for this pollution source. This study investigates VOC emission profiles from solvent-based and water-based paints in industrial solvent use, with a focus on key drivers of emission and environmental/health risk.

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Spin polarized excitons induced by spin injection from magnetic ion to a single quantum dot, has been considered as a basic unit of quantum information transfer between spin and photon for spin-photonic applications. However, this state-of-the-art technology has only been found with limited coupling strength and weak excitonic emission. Here, we demonstrate a spin-polarized self-trapped exciton naturally formed in the zero-dimensional lattice of cesium copper iodide.

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The current data sources used for establishing emission inventories are relatively homogenous and do not meet the requirement of real-time and accurate environmental management. Multi-source environmental management data could reflect enterprises' detailed information and provide support for emission inventories. To assess the current situation of air pollutants and CO emissions from industrial sources in Beijing-Tianjin-Hebei and its surrounding areas in 2020, this study integrates emergency emission reduction lists with pollution discharge permit data and establishes a high spatio-temporal resolution industrial emission inventory using a combination of "bottom-up" and "top-down" approach.

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Reducing fine particulate nitrate (pNO) is critical for further mitigating PM pollution in China. However, previous NO emission reductions have failed to achieve the expected pNO decreases. The present study reports that pNO concentration in summer increased by 55.

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Ambiguous emission of new pollutants is a fundamental obstacle of risk prevention, such as hexachlorobutadiene (HCBD). To quantify the HCBD emission in China, we probed the emission factors for main sources based on analysis of 847 gas samples from field experiments. Considering treatment efficiency, emissions of 362 kinds of sources were measured.

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Background: With clinical trials on the use of different modern precise radiotherapy techniques in the setting of postoperative radiotherapy (PORT) in N2 non-small cell lung cancer (NSCLC) accumulating, an updated meta-analysis was performed.

Methods: A literature search identified studies that investigated PORT versus non-PORT in N2 NSCLC patients. Overall survival (OS) and locoregional recurrence (LR) were employed.

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To study the factors affecting the spatial distribution of ozone concentration in different regions of China, based on the summer ozone monitoring data of 2019 and three influencing factors, namely, main meteorological, direct emission, and socio-economic factors, the influence degree of various factors on the spatial differentiation of ozone was quantified by using the Geodetector method and the comparison between regions was conducted. The results showed that the spatial differentiation of ozone concentration in summer 2019 was most affected by the main meteorological factors and the average degree of influence reached 0.277.

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Anxiety disorder is a universal disease related to neuro-inflammation. Solanesol has shown positive effects because of its anti-inflammatory, anti-tumor, and anti-ulcer properties. This study focused on determining whether solanesol could ameliorate anxiety-like behaviors in a mouse model of neuro-inflammation and identify its working targets.

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Article Synopsis
  • - Fine particulate matter (PM) from vehicle exhaust is harmful to health and air quality, particularly as emissions rise with lower temperatures, especially during cold starts below 5°C.
  • - The study found that particulate emissions from light-duty gasoline vehicles (LDGVs) increased significantly at colder temperatures, revealing distinct particle size patterns related to different fuel injection types.
  • - Emissions of toxic components, particularly benzo[a]pyrene, were highest at -7°C, highlighting the need for stricter vehicle emission standards and better models for cold weather conditions.
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Implementing topological superconductivity (TSC) and Majorana states (MSs) is one of the most significant and challenging tasks in both fundamental physics and topological quantum computations. In this work, taking the obstructed atomic insulator (OAI) Nb_{3}Br_{8}, s-wave superconductor (SC) NbSe_{2}, and ferromagnetic insulator (FMI) CrI_{3} as an example, we propose a new setup to realize the 2D chiral TSC and MSs in the SC/OAI/FMI heterostructure, which could avoid the subband problem effectively and has the advantage of huge Rashba spin-orbit coupling. As a result, the TSC phase can be stabilized in a wide region of chemical potential and Zeeman splitting, and four distinct TSC phases with superconducting Chern number N=-1,-2,-3, 3 can be achieved.

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Organic aerosol (OA) serves as a crucial component of fine particulate matter. However, the response of OA to changes in anthropogenic emissions remains unclear due to its complexity. The XXIV Olympic Winter Games (OWG) provided real atmospheric experimental conditions on studying the response of OA to substantial emission reductions in winter.

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Traffic sources are a major contributor to fine particulate matter (PM) pollution, with their emissions and diffusion exhibiting complex spatiotemporal patterns. Receptor models have limitations in estimating high-resolution source contributions due to insufficient observation networks of PM compositions. This study developed a source apportionment method that integrates machine learning and emission-based integrated mobile source indicator (IMSI) to rapidly and accurately estimate PM traffic source impacts with high spatiotemporal resolution in the Beijing-Tianjin-Hebei region.

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During the COVID-19 lockdown in the Beijing-Tianjin-Hebei (BTH) region in China, large decrease in nitrogen oxides (NO) emissions, especially in the transportation sector, could not avoid the occurrence of heavy PM pollution where nitrate dominated the PM mass increase. To experimentally reveal the effect of NO control on the formation of PM secondary components (nitrate in particular), photochemical simulation experiments of mixed volatile organic compounds (VOCs) under various NO concentrations with smog chamber were performed. The proportions of gaseous precursors in the control experiment were comparable to ambient conditions typically observed in the BTH region.

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C. B. Clarke is a traditional Chinese medicinal herb that has a limited clinical use in the treatment of diabetes mellitus (DM) in minority areas of Guizhou in China.

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The significant impact of low ambient temperature, which was less regulated, on vehicle exhaust emissions had garnered considerable attention. This study investigated the impact of ambient temperature on exhaust emissions based on the global meta-analysis. The estimated sizes (mean difference, MD) of 11 exhaust pollutants were quantified with 1795 observations at low ambient temperatures (LATs, -18 °C to -7 °C) versus warm ambient temperatures (WATs, 20 °C-30 °C).

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Background: Incidence of cancer-related fatigue (CRF), which can persist 5 to 10 years, is nearly 85% in cancer patients. It severely affects the quality of life and is strongly associated with poor prognosis. As clinical trial data on CRF treated with methylphenidate and ginseng, two potential medicines, has been accumulating, an updated meta-analysis was performed to evaluate and compare the efficacy and safety of the two medicines in CRF.

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The building materials industry is a typical resource and energy-consuming industry, as well as one of the major sources of air pollution. As the world's largest producer and consumer of building material products, China thus far has insufficient research on the emissions of the building materials industry, and the data sources are short of multiplicity. In this study, the building materials industry in Henan Province was chosen,and the control measures inventory for pollution emergency response (CMIPER) was applied to the development of the emission inventory for the first time.

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Background: Assess the efficiency and cost-effectiveness of infliximab, cyclosporine and tacrolimus for the treatment of ulcerative colitis (UC).

Methods: A literature search identified studies that investigated infliximab, cyclosporine or tacrolimus compared with placebo in UC patients. Short-term, long-term remission rates and response rates were employed to assess efficacy.

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Rural household energy, particularly solid fuels, in northern China is thought to be a major source of air pollution. However, there is no complete, systematic, and reliable dataset for northern China's rural areas owing to the diversity of energy types used and the difficulty in acquiring data, particularly for solid fuels. Here we assessed existing progress in estimating solid fuels and proposed a practical route for deriving the information on rural household energy consumption and structure in northern China spanning 2010-2020, with important findings.

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Background: Up to 90% of patients who are under the active treatment suffer from cancer-related fatigue (CRF). CRF can persist about 10 years after diagnosis and/or treatment. Accumulating reports support that ginseng and ginseng injections are both potential drugs for the treatment of CRF but few studies put them together for analysis.

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Infection with () can cause chronic gastritis and other digestive tract diseases, and represents a public health concern. Current anti- treatment can result in antibiotic resistance and other adverse reactions. Huangqi Jianzhong decoction (HQJZD) is a prescription form of traditional Chinese medicine for chronic gastritis that increases probiotics and inhibits .

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Danggui Jianzhong decoction is a classical prescription that has been widely used for thousands of years. However, the quality of this formula is difficult to control owing to its complex chemical component system. In this study, a simple and efficient method comprising ultra-high-performance liquid chromatography fingerprint, chemical pattern recognition, and network pharmacology was established to evaluate the quality of this decoction.

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Engine start-stop (S&S) technology has been substantially incorporated into modern vehicles to save fuel during idling in congested urban areas because fuel economy regulations have become more stringent. However, the potential for increasing particle emissions after engine restarts, especially in cold environments, is of great concern. To investigate the effects of S&S systems on fuel consumption and tailpipe emissions, a chassis dynamometer was employed to measure the fuel consumption, particulate matter (PM), solid particle number (PN), particle number size distribution and black carbon (BC) for a typical gasoline direct injection vehicle when the S&S was on (S&S-on) and when the S&S was off (S&S-off) according to the worldwide harmonized light-duty test cycle in both hot (28 °C) and cold (5 °C) environments.

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City clusters play an important role in air pollutant and greenhouse gas (GHG) emissions reduction in China, primarily due to their high fossil energy consumption levels. The "2 + 26" Cities, i.e.

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There is a large gap between the simulated and observed sulfate concentrations during winter haze events in North China. Although multiphase sulfate formation mechanisms have been proposed, they have not been evaluated using chemical transport models. In this study, the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem) was used to apportion sulfate formation.

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