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1.
Medicine (Baltimore) ; 103(19): e37889, 2024 May 10.
Article in English | MEDLINE | ID: mdl-38728483

ABSTRACT

RATIONALE: Anesthesia management of patients with dilated cardiomyopathy (DCM) has always been a challenge for anesthesiologists. Eighty percent of patients with DCM have heart failure as the first symptom, which may be accompanied by arrhythmias, thromboembolism, etc. Thrombosis is a significant contributing factor to adverse cardiovascular and cerebrovascular events, and its risk is severely underestimated in the anesthetic management of DCM. PATIENT CONCERNS: We present a case of a 54-year-old hypersensitive female patient with dilated cardiomyopathy and purpura who underwent an interventional thrombectomy under general anesthesia following a lower limb thromboembolism. DIAGNOSIS: Patient underwent an interventional thrombectomy under general anesthesia, with in situ thrombosis occurring during the surgery. INTERVENTIONS: After maintaining stable hemodynamics, proceed with the intervention to retrieve the embolus. OUTCOME: Patients in the advanced DCM developed acute thrombosis twice during embolization. LESSONS: This case discusses the causes of intraoperative thrombosis and summarizes and reflects on the anesthesia management of this case, which has always been one of the difficult points for anesthesiologists to master. In the anesthesia management of DCM patients, it is also necessary to maintain hemodynamic stability, enhance perioperative coagulation management, use anticoagulants rationally, and avoid the occurrence of thrombotic events.


Subject(s)
Anesthesia, General , Cardiomyopathy, Dilated , Femoral Artery , Thrombectomy , Humans , Female , Middle Aged , Cardiomyopathy, Dilated/complications , Cardiomyopathy, Dilated/surgery , Thrombectomy/methods , Femoral Artery/surgery , Anesthesia, General/methods , Thromboembolism/etiology
2.
Medicine (Baltimore) ; 103(19): e38089, 2024 May 10.
Article in English | MEDLINE | ID: mdl-38728501

ABSTRACT

Proton beam therapy (PBT) has great advantages as tumor radiotherapy and is progressively becoming a more prevalent choice for individuals undergoing radiation therapy. The objective of this review is to pinpoint collaborative efforts among countries and institutions, while also exploring the hot topics and future outlook in the field of PBT. Data from publications were downloaded from the Web of Science Core Collection. CiteSpace and Excel 2016 were used to conduct the bibliometric and knowledge map analysis. A total of 6516 publications were identified, with the total number of articles steadily increasing and the United States being the most productive country. Harvard University took the lead in contributing the highest number of publications. Paganetti Harald published the most articles and had the most cocitations. PHYS MED BIOL published the greatest number of PBT-related articles, while INT J RADIAT ONCOL received the most citations. Paganetti Harald, 2012, PHYS MED BIOL can be classified as classic literature due to its high citation rate. We believe that research on technology development, dose calculation and relative biological effectiveness were the knowledge bases in this field. Future research hotspots may include clinical trials, flash radiotherapy, and immunotherapy.


Subject(s)
Bibliometrics , Proton Therapy , Proton Therapy/statistics & numerical data , Proton Therapy/methods , Humans , Biomedical Research/statistics & numerical data , Neoplasms/radiotherapy
3.
Chem Commun (Camb) ; 60(37): 4934-4937, 2024 May 02.
Article in English | MEDLINE | ID: mdl-38629221

ABSTRACT

The electrochemical reduction of CO2 on catalyst surfaces is hindered by the inefficient mass transfer of CO2 in aqueous solutions. In this study, we employed an electrochemical reduction approach to fabricate a hydrophobic three-dimensional nanoporous silver catalyst with a plastron effect, aiming to enhance the CO2 diffusion. The resulting catalyst exhibited an exceptional performance with the FECO peaking at 95% at -0.65 V (vs. RHE) and demonstrated remarkable stability during continuous electrolysis for 48 hours. Control experiments, together with Tafel analysis, EIS measurements, and contact angle results, confirmed that the notable enhancement of performance was attributed to the hydrophobic porous structure that facilitated efficient storage and rapid mass transfer of low-solubility CO2 gas reactants.

4.
Water Res ; 254: 121359, 2024 May 01.
Article in English | MEDLINE | ID: mdl-38428237

ABSTRACT

Pathogenic microorganisms can cause infection, sepsis, and other diseases in humans. Although municipal wastewater plants are important sources and sinks for potential pathogenic microorganisms, data on rural wastewater treatment processes are limited. The proximity of rural wastewater facilities to human settlements and the trend toward wastewater resourcing could pose risks to humans. Here, a typical village in southern China was selected to analyze potential pathogenic microorganisms in wastewater, sewage sludge, and aerosols during the collection, treatment, and discharge of domestic wastewater. The succession characteristics and concentration variations of potential pathogenic microorganisms throughout the wastewater treatment process were identified using high-throughput sequencing and culture methods. Bacteria-associated health risks in facility aerosols were estimated based on average daily dose rates from inhalation and dermal exposure. Lower amounts of pathogenic bacteria and pathogenic fungi were detected in the effluent of the 1-ton treatment scale and the 10-ton treatment scale facilities, compared to those in the influent. Pathogen effluent concentrations were significantly lower than influent concentrations after treatment in rural wastewater facilities. 16 and 29 potential pathogenic bacteria and fungi were detected in aerosols from wastewater treatment facilities, respectively. Furthermore, the potential pathogen concentrations were higher than those in the background air. Aerobic units are the main source of pathogen emissions from aerosols. There were 42 potential pathogenic bacteria and 34 potential pathogenic fungi in the sewage sludge. Biochemical units were the main source of potential pathogens in sewage sludge, and more potential airborne pathogens originated from wastewater. In rural wastewater resourcing processes with greater pollutant exposure, the effluent of rural wastewater treatment facilities (WWTFs), downstream rivers, and facility aerosols, could be important potential sources of microbial risk. Inhalation is the main pathway of human exposure to airborne bacteria. Therefore, more attention should be focused on microbiological risk in rural wastewater treatment processes.


Subject(s)
Wastewater , Water Purification , Humans , Sewage/microbiology , Air Microbiology , Risk Assessment , Bacteria , Aerosols , Fungi
5.
Heliyon ; 10(3): e25184, 2024 Feb 15.
Article in English | MEDLINE | ID: mdl-38322946

ABSTRACT

Objectives: To investigate the prognostic capacity of baseline 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) metabolic parameters in extranodal natural killer/T-cell lymphoma (ENKTCL), and the influence of relative thresholds (RT) and absolute thresholds (AT) selection on prognostic capacity. Materials and methods: Metabolic tumor volume (MTV)-based parameters were defined using RTs (41 % or 25 % of maximum standardized uptake value [SUVmax]), ATs (SUV 2.5, 3.0, 4.0, or mean liver uptake) in 133 patients. Metabolic parameters were classified into avidity-related parameters (SUVmax, mean SUV [SUVmean], standard deviation of SUV [SUVsd]), volume-related parameters (RT-MTV), and avidity- and volume-related parameters (total lesion glycolysis [TLG] and AT-MTV). The prognostic capacity of the metabolic parameters and the effects of different threshold types (RT vs. AT) were evaluated. Results: All metabolic parameters were moderately associated with prognosis. However, the area under the receiver operating characteristic curve of MTV and TLG was slightly higher than that of avidity-related parameters for predicting 5-year progression-free survival (PFS) (0.614-0.705 vs. 0.563-0.609) and overall survival (OS) (0.670-0.748 vs. 0.562-0.593). Correlations of MTV and avidity-related parameters differed between RTs (r < 0.06, P = 0.324-0.985) and ATs (r 0.56-0.84, P ≤ 0.001). AT-MTV was the optimal predictor for PFS and OS, while RT-TLG was the optimal predictor for PFS, and the combination of RT-MTV with SUVmax was the optimal predictor for OS. Conclusion: The incorporation of volume and avidity significantly improved the prognostic capacity of PET in ENKTCL. Composite parameters that encompassed both avidity and volume were recommended.

6.
Environ Sci Pollut Res Int ; 30(34): 82326-82340, 2023 Jul.
Article in English | MEDLINE | ID: mdl-37328720

ABSTRACT

The synergy of the digital economy and green total factor productivity (TFP) is the foundation for achieving beneficial outcomes for both the economy and environment. This synergy is also the catalyst for high-quality development and sustainable economic growth in China. The study applied a modified Ellison-Glaeser (EG) index, super-efficiency slacks-based measure (SBM) with a Malmquist-Luenberger (ML) index, coupling coordination degree, and other models to explore the spatiotemporal heterogeneity of the coupling between the digital economy and green TFP from 2011 to 2020 and also analyzed the influencing factors of the coupling. The results show that the coupling between the digital economy and green TFP showed an overall upward trend from imbalance to synergy during the study period. The distribution of the synergistic coupling expanded from point-like to band-like, and there was a significant spreading pattern from the east to the center or west China. The number of cities in a transition state decreased significantly. Spatial jumps, a coupling linkage effect, and evolution in time were prominent. Additionally, the absolute difference among cities expanded. Although coupling in the west experienced the fastest growth rate, the coupling in the east and resource-based cities showed significant benefits. Coupling did not reach an ideal coordinated state, and a neutral interaction pattern remains to be formed. Industrial collaboration, industrial upgrading, government support, economic foundation, and spatial quality all positively impacted the coupling; technological innovation had a lagged effect; and environmental regulation has not reached its full potential. Further, the positive effects of government support and spatial quality performed better in the east and in non-resource-based cities. Due to the optimization of industrial structure, the coupling of the west and resource-based cities achieved better dividends; however, spatial quality needs further improvement. Therefore, the efficient coordination of China's digital economy and green TFP requires a scientific, reasonable, localized, and distinctive approach.


Subject(s)
Economic Development , Government , China , Cities , Industry
7.
Int J Biol Macromol ; 243: 125219, 2023 Jul 15.
Article in English | MEDLINE | ID: mdl-37285885

ABSTRACT

The structure and properties of lignin can vary depending on the type of lignocellulosic biomass it comes from and the separation techniques used, and also affects its suitability for different applications. In this work, the structure and properties of lignin isolated from moso bamboo, wheat straw, and poplar wood by different treatment processes were compared. Results show that deep eutectic solvent (DES) extracted lignin exhibits well-preserved structures (including ß-O-4, ß-ß, and ß-5 linkages), a low molecular weight (Mn = 2300-3200 g/mol), and relatively homogeneous lignin fragments (1.93 < PDI < 2.33) compared to dealkaline lignin (DL) and milled wood lignin (MWL). Besides, lignin samples extracted by DES have a regular nanostructure, higher carbon residue content (>40 %), and excellent antioxidant properties (the free radical scavenging index >20). Among the three types of biomass, the structural destruction of lignin in straw is the most obvious, which is due to the degradation of ß-O-4 and ß-ß linkages during DES treatment. These findings can contribute to a better understanding of the structural changes that occur in various treatment processes from different lignocellulosic biomass, and help maximize the targeted development of their applications based on the characteristics of lignin.


Subject(s)
Antioxidants , Lignin , Lignin/chemistry , Biomass , Molecular Weight
8.
Waste Manag ; 166: 35-45, 2023 Jul 01.
Article in English | MEDLINE | ID: mdl-37148780

ABSTRACT

Bamboo pulp and papermaking produce a lot of bamboo powder waste, and its resource utilization is of great significance for biomass refining and environmental protection. Here, we propose an integrated approach involving mechanical activation, hydrothermal extraction, and deep eutectic solvents (DESs) multiple delignification for the efficient separation of bamboo powder. Among seven carboxylic acids based DESs, choline chloride (ChCl)-lactic acid (La) DES (1:1) is the most effective, with over 78.0% lignin removal and 88.9% cellulose retained after mechanical-hydrothermal (180 °C, 5 h)-DES (110 °C, 12 h) treatment. Notably, 84.7% of delignification is achieved after three times of ChCl-La DES treatment at 70, 90, and 110 °C respectively. The delignification rate is negatively correlated with the amount of carboxyl group in the DESs. The lower the pKa value, the higher the delignification rate. Additionally, the selectivity for lignin is improved with decreasing solvent polarity. DES treatment effectively degrades the guaiacyl unit lignin fractions and disrupts several ß-aryl-ether bonds (e.g., ß-O-4, ß-ß, and ß-5). Furthermore, DESs exhibit good recyclability, with less than 10% reduction in delignification after three cycles. Theory calculations confirm that ChCl-carboxylic acid DESs could compete with lignin to break hydrogen bonds in lignocellulosic biomass by providing their chloride, hydroxyl, and carboxyl groups. Overall, this study demonstrates the practical significance of multistage treatment for the effective fractionation of biomass into its three components.


Subject(s)
Cellulose , Lignin , Lignin/chemistry , Powders , Biomass , Solvents/chemistry , Lactic Acid , Choline/chemistry , Hydrolysis
9.
Environ Pollut ; 319: 120911, 2023 Feb 15.
Article in English | MEDLINE | ID: mdl-36549453

ABSTRACT

Co-composting is an efficient strategy for collaborative disposal of multiple organic wastes in rural areas. In this study, we explored the co-composting of rural sewage sludge and other organic solid wastes (corn stalks and kitchen waste), with a focus on the variation of total petroleum hydrocarbons (TPH) during this process. 12% corn-derived biochar was applied in the composting (BC), with no additives applied as the control treatment (CK). The TPH contents of piles after composting ranged from 0.70 to 0.74 mg/g, with overall removal efficiencies of 35.6% and 61.1% for CK and BC, respectively. The results indicate that the addition of 12% biochar increased the rate of TPH degradation and accelerated the degradation process. 16s rDNA high-throughput sequencing was applied to investigate the biodiversity and bacterial community succession during the composting process. Diverse bacterial communities with TPH degradation functions were observed in the composting process, including Acinetobacter, Flavobacterium, Paenibacillus, Pseudomonas, and Bacillus spp. These functional bacteria synergistically degraded TPH, with cooperative behavior dominating during composting. Biochar amendment enhanced the microbial activity and effectively promoted the biodegradation of TPH. The physicochemical properties of the compost piles, including environmental factors (pH and temperature), nutrients (nitrogen, phosphorus, potassium), and humic substances produced in composting (humic acids and fulvic acids), directly and indirectly affected the variation in TPH contents. In conclusion, this work illustrates the variation in TPH content and associated influencing factors during co-composting of rural organic solid wastes, providing valuable guidance toward the further optimization of rural organic waste management.


Subject(s)
Composting , Petroleum , Sewage , Solid Waste , Humic Substances , Hydrocarbons , Flavobacterium , Soil
10.
BMC Cardiovasc Disord ; 22(1): 549, 2022 12 16.
Article in English | MEDLINE | ID: mdl-36526970

ABSTRACT

BACKGROUND: In recent years, the difference in outcomes of radiofrequency catheter ablation (RFCA) in persistent atrial fibrillation patients has risen. In particular, biological sex seems involved in a different response to the AF ablation procedure. In our study, we analyzed the AF recurrences after RFCA assessing the other association between male/female patients with the outcomes. METHODS: We enrolled 106 patients (74.5% men) with persistent atrial fibrillation with scheduled follow-up. The baseline clinical characteristics and AF recurrence after RFCA were compared between men and women. Cox regression analyses were performed to determine the risk predictors of AF recurrence. RESULTS: The proportion of RFCA in women was lower than that in men. Men with persistent AF were younger than women (58.6 ± 10.4 years vs. 65.1 ± 8.7 years, respectively; p = 0.003). The left atrium (LA) diameter was higher in males (43.7 ± 4.6 mm vs. 41.3 ± 5.5 mm; p = 0.028), and the level of left heart ejection fraction (LVEF) was higher in females (59.4 ± 6.9% vs. 64.1 ± 5.5%; p = 0.001). Sex differences in AF recurrence after RFCA were significant during the median 24.4-month (interquartile range: 15.2-30.6 months) follow-up period, and the recurrence rate of AF in women was significantly higher than that in men (p = 0.005). Univariable Cox regression analysis showed that female sex was a risk factor for persistent AF recurrence after RFCA [HR: 2.099 (1.087-4.053)]. Univariate Cox regression analysis revealed that non-PV ablation not associated with AF recurrence [HR: 1.003 (0.516-1.947)]. CONCLUSION: In a monocentric cohort of persistent AF patients, the female biological sex was associated with a higher risk of AF recurrence after RFCA.


Subject(s)
Atrial Fibrillation , Catheter Ablation , Female , Humans , Male , Atrial Fibrillation/diagnosis , Atrial Fibrillation/surgery , Sex Characteristics , Recurrence , Treatment Outcome , Catheter Ablation/adverse effects , Catheter Ablation/methods
11.
Oral Oncol ; 135: 106231, 2022 12.
Article in English | MEDLINE | ID: mdl-36327674

ABSTRACT

OBJECTIVES: Molecular targeted therapies against vascular endothelial growth factor (VEGF) receptor (VEGFR) have been explored in the treatment of recurrent or metastatic nasopharyngeal carcinoma (rmNPC). We conducted a meta-analysis to evaluate the efficacy and safety of VEGF/VEGFR inhibitors for treating rmNPC. MATERIALS AND METHODS: Electronic databases were searched for eligible literature. Data on the objective response rate (ORR), disease control rate (DCR), median progression-free survival (mPFS), median overall survival (mOS), PFS rate, OS rate, and drug-related adverse events (AEs) were extracted. RESULTS: A total of 10 studies (published in 9 articles) that involved 357 patients were included. The pooled ORR was 37 % (95 % confidence interval [CI]: 17-60 %), the DCR was 70 % (95 % CI: 51-85 %), the mPFS was 5.69 months (95 % CI: 4.52-6.86), the mOS was 12.61 months (95 % CI: 10.23-14.99), the 1-year PFS rate was 34 % (95 % CI: 25-44 %), and the 1-year OS rate was 62 % (95 % CI: 38-83 %). The pooled incidence of grade 3/4 drug-related AEs was 27 %, while that of grade 5 AEs was 0.22 %. Further subgroup analysis showed that the pooled ORR and DCR for first-line VEGF inhibitors were 80 % (95 % CI: 74-86 %) and 94 % (CI: 82-100 %), respectively. CONCLUSION: Our meta-analysis is the first report to demonstrate the efficacy and safety of VEGF/VEGFR inhibitors in patients with rmNPC. Targeting VEGF/VEGFR therapy added to first-line chemotherapy achieved an excellent ORR and DCR, while the improvement in response rates did not translate to a prominent OS benefit.


Subject(s)
Nasopharyngeal Neoplasms , Vascular Endothelial Growth Factor A , Humans , Nasopharyngeal Carcinoma/drug therapy , Neoplasm Recurrence, Local/drug therapy , Molecular Targeted Therapy , Nasopharyngeal Neoplasms/drug therapy
12.
Environ Dev Sustain ; : 1-25, 2022 Jul 30.
Article in English | MEDLINE | ID: mdl-35966337

ABSTRACT

The coordinated development of industrial agglomeration and economic resilience can drive regional economic advantages; this type of development has become a catalyst for sustainable growth and high-quality development of the economy in China. This study applied models, including the coupling coordination degree, spatial autocorrelation, and Tobit, to explore the heterogeneous characteristics of the coupling of China's industrial agglomeration and regional economic resilience from 2005 to 2019. Additionally, by applying the perspectives of economic and geographic location, indicators were selected to analyze the associated influencing factors, including industrial externalities, new economic geographies, economic policy factors, and other aspects. We found that the overall coupling between industrial agglomeration and economic resilience increased over the study period, but with only a moderate level of coordination. Provinces with high, moderate, and low levels of coordination eventually emerged along a strip-like alternating pattern in space. The dependence increased with an increase in space, but was not significant, and there was a lack of benign interaction between the regions. With respect to interactivity between locations, the interaction of the east and the coast was the most active. There were lower levels of interaction between the west and inland regions. This further confirmed the significant temporal and spatial heterogeneity of the coupling. Environmental pollution, market consumption, the quality of space, and technological support significantly promoted the coupling; opening to the outside world did not. Specifically, with respect to economic location, market consumption and spatial quality had a significant positive effect on the eastern coupling. The center and west regions were significantly affected by economic density and market consumption, and the northeast region was affected by spatial quality and capital intensity. Concerning geographical location, market and technological forces strongly promoted interactions in both the coast and inland regions. The study found that both the government and the market need better guidance to effectively engage with and shape industrial agglomeration and economic resilience in a scientific, reasonable, localized, and distinctive manner.

13.
Chin Geogr Sci ; 32(4): 686-706, 2022.
Article in English | MEDLINE | ID: mdl-35855731

ABSTRACT

The 14th Five-Year Plan period is a critical period for China to achieve high-quality development. Based on super-efficiency slacks-based measure (SBM) model, grey-related analysis (GRA) and other models, this paper studies the heterogeneity of the coupling relationship among technological innovation, industrial transformation and environmental efficiency in the Huaihai Economic Zone during the period of 2005-2019. In addition, it analyzes the coupling mechanism of single and binary systems to the ternary system, which is of great significance for the collaborative symbiosis among systems. The findings are as follows. 1) The technological innovation, industrial transformation and environmental efficiency (TIE) systems of the Huaihai Economic Zone had significant spatial-temporal heterogeneity. Although their evaluation value fluctuated, the development trends are all positive. Ultimately, technological innovation is characterized by being high in the northeast and low in the southwest around Xuzhou, while other systems are relatively staggered in space. 2) The coupling of TIE systems is in transition, lack of orderly integration and benign interaction. However, the developing trend of interaction is also upward, and a spatial pattern driven by Xuzhou and Linyi as the dual cores has gradually formed. Moreover, the coupling is mostly manifested as outdated technological innovation and industrial transformation. Except for the final coordination of regenerative cities, the other resource types are all in transition. Cities in all traffic locations are still in transition. The overall system interaction of cities on Longhai Line (Lanzhou-Lianyungang Railway) is relatively optimal, and cities on Xinshi Line (Xinxiang-Rizhao Railway) are accelerating toward synergy. 3) The coupling status of TIE systems depends on the development of the single system and the interaction of the binary (2E) system. The coupling is closely related to technological innovation and Technology-Industry system, and is hindered by the inefficient interaction of Technology-Environment system. Specifically, the synergy of regenerative cities is attributed to the advantage of a single system and the effective integration of 2E systems. Beneficial from the advantages of environmental efficiency, the cities on Xinshi Line promote the synergy of the 2E and TIE systems. Therefore, while the Huaihai Economic Zone stimulates the development potential of the single and 2E systems, it is necessary to amplify the superimposition effect of systems in accordance on the basis of resource and location.

14.
Water Res ; 220: 118703, 2022 Jul 15.
Article in English | MEDLINE | ID: mdl-35671682

ABSTRACT

Shale gas wastewater (SGW) has great potential for the recovery of valuable elements, but it also poses risks in terms of environmental pollution, with heavy metals and naturally occurring radioactive materials (NORM) being of major concerns. However, many of these species have not been fully determined. For the first time, we identify the elements present in SGW from the Sichuan Basin and consequently draw a comprehensive periodic table, including 71 elements in 15 IUPAC groups. Based on it, we analyze the elements possessing recycling opportunities or with risk potentials. Most of the metal elements in SGW exist at very low concentrations (< 0.2 mg/L), including rare earth elements, revealing poor economic feasibility for recovery. However, salts, strontium (Sr), lithium (Li), and gallium (Ga) are in higher concentrations and have impressive market demands, hence great potential to be recovered. As for environmental burdens related to raw SGW management, salinity, F, Cl, Br, NO3-, Ba, B, and Fe, Cu, As, Mn, V, and Mo pose relatively higher threats in view of the concentrations and toxicity. The radioactivity is also much higher than the safety range, with the gross α activity and gross ß activity in SGW ranging from 3.71-83.4 Bq/L, and 1.62-18.7 Bq/L, respectively and radium-226 as the main component. The advanced combined process "pretreatment-disk tube reverse osmosis (DTRO)" with pilot-scale is evaluated for the safe reuse of SGW. This process has high efficiency in the removal of metals and total radioactivity. However, the gross α activity of the effluent (1.3 Bq/L) is slightly higher than the standard for discharge (1 Bq/L), which is thus associated with potential long-term environmental hazards.


Subject(s)
Metals, Heavy , Water Pollutants, Radioactive , Metals, Heavy/analysis , Natural Gas , Radioisotopes , Wastewater , Water Pollutants, Radioactive/analysis
15.
Vet Res Forum ; 13(1): 141-144, 2022 Mar.
Article in English | MEDLINE | ID: mdl-35601778

ABSTRACT

Shewanella xiamenensis, a newly virulent zoonotic pathogen belonging to the genus Shewanella is the causative organism of emerging intra-abdominal infection, acute skin ulceration, rotten limbs and ascites in humans and animals. The global spread of S. xiamenensis entails severe economic impact. However, it was rarely reported as a cause of infection and no reports were found that S. xiamenensis isolated from clinical samples. The isolate was identified as a S . xiamenensis strain by 16S rDNA amplification and DNA sequencing identification method. Even if co-infection by other bacteria could not be ruled out, this is the first report of acute disease caused by S . xiamenensis in the Chinese giant salamander in China. By using the Kirby-Bauer disc diffusion method, the sensitivity of the isolate to clinical antibiotics was evaluated. Antibiotic susceptibility test indicated that the isolate was resistant to 32 antibacterial drugs such as kanamycin, florfenicol and ceftriaxone suggesting that the isolate was a multi-drug resistant strain.

16.
Environ Sci Pollut Res Int ; 28(27): 35537-35563, 2021 Jul.
Article in English | MEDLINE | ID: mdl-34031822

ABSTRACT

Deep eutectic solvent (DES) is regarded as a new generation of green solvent due to its distinctive and tailorable physicochemical properties, such as low volatility, strong solubility, biodegradability, low-cost, environment-friendly, and feasibility of the structural design. As an alternative to traditional organic solvents and ionic liquids (ILs), DESs have been widely applied in many fields, such as organic chemical synthesis, electrochemical deposition, material preparation, biomass catalytic conversion, extraction and separation, detection and analysis, nanotechnology, gas absorption, and drug delivery. In this paper, through in-depth discussion on factors influencing the physicochemical properties of DESs, we summarized the relations between their composition, structure, and performance. Focusing on their solvent performance, we analyzed the latest research results of DESs with different physicochemical properties in various fields. It should be pointed out that designing and synthesizing DESs from the molecular structure aspect to regulate their physicochemical properties is the direction of accurately developing new functional applications of DESs.


Subject(s)
Ionic Liquids , Chemical Phenomena , Molecular Structure , Solubility , Solvents
17.
Nano Lett ; 21(7): 2738-2744, 2021 Apr 14.
Article in English | MEDLINE | ID: mdl-33783214

ABSTRACT

Aqueous rechargeable zinc ion batteries are promising candidates for grid-scale applications owing to their low cost and high safety. However, they are plagued by the lack of suitable cathode and anode materials. Herein, we report on potassium vanadate (KVO) nanobelts as a promising cathode for an aqueous zinc ion battery, which shows a high discharge capacity of 461 mA h g-1 at 0.2 A g-1 and exhibits a capacity retention of 96.2% over 4000 cycles at 10 A g-1. Furthermore, to enhance the energy efficiency in an aqueous zinc ion battery, a facile and effective method on the anode is demonstrated. The energy efficiency increases from 47.5% for Zn//KVO coupled with the zinc foil anode to 66.5% for AB-Zn//KVO coupled with an acetylene black film improved zinc foil anode at 10 A g-1. The remarkable electrochemical performance makes AB-Zn//KVO a strong candidate for a high-performance aqueous zinc ion battery.

18.
Environ Sci Pollut Res Int ; 28(24): 31403-31420, 2021 Jun.
Article in English | MEDLINE | ID: mdl-33608784

ABSTRACT

Existing research on the relationship among corruption, energy efficiency, and industrial carbon emissions is limited, while incorporating them into one analytical framework might provide new insights for the mechanism between corruption and industrial carbon emissions. Using the provincial panel data in China's industry from 2005 to 2015, this study applies the System Generalized Method of Moments (SYS-GMM) to explore the impacts of corruption and energy efficiency on industrial carbon emissions. The results indicate that under current economic development status, the effects of corruption and energy efficiency on industrial carbon emissions are divergent; i.e., corruption can enhance carbon emissions, whereas energy efficiency facilitates carbon emission reduction. Energy efficiency plays a mediating role in the relationship between corruption and carbon emissions for both the whole sample and the sub-samples. In other words, corruption aggravates industrial carbon emissions through lowering energy efficiency. Additionally, for the eastern region in China, there is an inverted U-shaped curve relationship between corruption and carbon emissions, as well as a U-shaped curve relationship between energy efficiency and carbon emissions. For the other regions, there is little sign of nonlinearity. Based on the results, policy implications regarding carbon emissions curbing are proposed.


Subject(s)
Carbon Dioxide , Carbon , Carbon/analysis , Carbon Dioxide/analysis , China , Conservation of Energy Resources , Industry
19.
Chem Commun (Camb) ; 56(64): 9174-9177, 2020 Aug 18.
Article in English | MEDLINE | ID: mdl-32657317

ABSTRACT

Recently, there has been renewed interest in aqueous Zn-ion batteries. Here, electrochemical and structural changes of hierarchically porous sodium vanadate (NVO) in aqueous Zn-ion batteries are demonstrated. The hierarchically porous NVO cathode exhibits a high power density of 7139 W h kg-1 at 10 A g-1 and excellent long-term cyclability. Moreover, the consequent capacitive- and diffusion-controlled mechanism in Zn/NVO battery chemistry has been first reported. Such a hybrid control mechanism may certainly trigger new opportunities in the rapid development of Zn-ion batteries.

20.
Chem Commun (Camb) ; 56(51): 7021-7024, 2020 Jun 25.
Article in English | MEDLINE | ID: mdl-32451518

ABSTRACT

The low-coordinated sites of electrocatalysts favour hydrogen evolution, while the edge sites are active for CO2 reduction. Oleylamine is used to stabilize nanoparticles by adsorbing on the low-coordinated sites. The hydrogen evolution reaction was dramatically suppressed and the FECO remained >93% from -0.4 to -0.8 V (vs. RHE) when oleylamine ligands existed on the surface of a gold catalyst. More H+ and electrons were involved in the CO evolution reaction, which changed the rate-limiting step from single-electron transfer to the chemical reaction step. The results establish that the surface-adsorbed surfactants during catalyst synthesis have an important effect on CO2 electrocatalytic reduction.

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