28 research outputs found
Xinhui xian zhi: [14 juan. v.1
No full text林星章主修 ; 黃培芳等纂]學衙藏版.Lin Xinzhang zhu xiu ; Huang Peifang deng zuan]Xue ya cang ban
Biochar-based urea increases soil methane uptake in a subtropical forest
No full texthttp://dx.doi.org/10.13039/501100001809 National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100018647 RUDN Universityhttp://dx.doi.org/10.13039/501100012166 National Key Research and Development Program of Chin
Sodium selenite antagonizes trimethyl tin-induced chicken hepatotoxic hepatitis through the RNS/NF-κB/NLRP3 pathway
No full textTrimethyl tin (TMT) is a good stabilizer for plastic products but is also a toxic environmental pollutant. Selenium has good antioxidant and anti-inflammatory properties and has been widely used in the poultry industry. However, it has not been reported whether selenium enrichment can antagonize TMT-induced viral hepatitis in poultry. To fill this gap, AA broiler models exposed to TMT for 42 d were established and fed a Se-enriched diet at the same time. H&E staining showed that selenium could significantly alleviate TMT-induced liver inflammation. Further analysis of the underlying mechanism revealed that TMT induced nitrosation stress (RNS), increased NO content and iNOS expression, which in turn activated the NF-κB/NLRP3 pathway and induced pyroptosis. However, selenium enrichment can reverse this situation, that is, reduce the occurrence of RNS, reduce the degree of pyroptosis, and thus alleviate the occurrence of inflammation. In our study, we demonstrated for the first time that TMT could induce hepatotoxicity other than neurotoxicity in poultry and that selenium could antagonize TMT-induced hepatotoxic hepatitis in chickens through the RNS/NF-κB/NLRP3 pathway
Cu2+-Induced Structural Isomers: Effect of Foreign Metal Ions on the Structure and Properties of Silver Nanoclusters
No full textMetal ions have an important impact on the precise control of the synthesis and atomic structural arrangement of noble metal nanoclusters. In this work, the effect of metal ions on the isomer generation of metal nanoclusters is revealed for the first time. Compared with the previous Ag-23 nanoclusters with two face-centered cubic (fcc) unit cells twisting 27 degrees, the Ag-23 isomer had a higher symmetry structure with two fcc unit cells almost overlapping. In addition, the UV/Vis absorption spectrum of the isomer showed a slight redshift of approximately 14 nm. The redshift might be because of the modulation of electronic structure, which is derived from fine-tuned crystal structure. Based on the experimental results, we provide mechanisms to explain the Cu2+ effect on the structural isomer. This work reports a significant finding to tune precisely the crystal structure and understand the mechanism of shape-controlled synthesis of metal nanoclusters
‐Induced Structural Isomers: Effect of Foreign Metal Ions on the Structure and Properties of Silver Nanoclusters
No full text
Structure of the Au23-xAgx(S-Adm)(15) Nanocluster and Its Application for Photocatalytic Degradation of Organic Pollutants
No full textLigands play an important role in determining the atomic arrangement within the metal nanoclusters. Here, we report a new nanocluster [Au23-xAgx(S-Adm)(15)] protected by bulky adamantanethiol ligands which was obtained through a one-pot synthesis. The total structure of [Au23-xAgx(S-Adm)(15)] comprises an Au13-xAgx icosahedral core, three Au-3(SR)(4) units, and one AgS3 staple motif in contrast to the 15-atom bipyramidal core previously seen in [Au23-xAgx(SR)(16)]. UV/Vis spectroscopy indicates that the HOMO-LUMO gap of [Au23-xAgx(S-Adm)(15)] is 1.5 eV. DFT calculations reveal that [Au19Ag4(S-Adm)(15)] is the most stable structure among all structural possibilities. Benefitting from Ag doping, [Au23-xAgx(S-Adm)(15)] exhibits drastically improved photocatalytic activity for the degradation of rhodamine B (RhB) and phenol under visible-light irradiation compared to Au-23 nanoclusters
Cross-cultural adaptation and psychometric properties of the Chinese version of the Orthorexia Nervosa Inventory
No full textBackgroundOrthorexia nervosa refers to an unhealthy preoccupation with maintaining a perfect diet, which is marked by highly restrictive eating habits, rigid food rituals, and the avoidance of foods perceived as unhealthy or impure. In recent years, the Orthorexia Nervosa Inventory (ONI) has gained recognition as a promising tool for assessing orthorexia tendencies and behaviors, addressing the limitations of existing ON-specific measures. This study aimed to evaluate the psychometric properties of the Chinese version of the ONI.MethodsA total of 717 participants (Mage = 20.11 years, 78.66% female) completed the Orthorexia Nervosa Inventory (ONI) alongside the Chinese version of the Düsseldorf Orthorexia Scale (C-DOS). The ONI was translated into Chinese using the Brislin traditional translation model, following formal authorization from the original author. This translation process included literal translation, back translation, and cultural adaptation to ensure both linguistic and contextual fidelity. Item analysis was employed to assess item differentiation. Scale reliability was determined by measuring internal consistency. Furthermore, exploratory and confirmatory factor analyses were conducted to investigate and confirm the underlying factor structure and overall validity of the scale.ResultsThe Chinese version of the Orthorexia Nervosa Inventory (ONI) consists of 24 items across three dimensions. The overall Cronbach’s alpha coefficient for the scale was 0.956, indicating excellent internal consistency. The Cronbach’s alpha coefficients for the individual dimensions were 0.894, 0.933, and 0.848, respectively, demonstrating high reliability for each dimension. Additionally, McDonald’s ω was 0.957 for the entire scale, reflecting strong stability in internal consistency, with individual dimensions having McDonald’s ω coefficients of 0.895, 0.934, and 0.854. The Spearman-Brown split-half reliability coefficient was 0.931, and McDonald’s ω for the split-half reliability was also 0.931, indicating excellent consistency across the scale’s two halves. The test–retest reliability was 0.987, with a 95% confidence interval ranging from 0.978 to 0.993, suggesting excellent stability over time and strong consistency across different measurement points. All model fit indices fell within acceptable ranges, affirming the structural validity of the Chinese version. The results from both exploratory and confirmatory factor analyses further supported this conclusion.ConclusionThis study successfully translated and culturally adapted the ONI into Chinese, followed by a comprehensive evaluation of its psychometric properties. The findings demonstrate that the Chinese version of the ONI possesses strong reliability and validity. In the context of varying cultural backgrounds and dietary habits, this scale serves as a valid tool for assessing and screening the Chinese ON population
Highly Efficient Synthesis of Au-130(SPh-Br)(50) Nanocluster
No full textWe reported the synthesis of Au-130(SPh-Br)(50)(Br-Ph-SH=4-bromothiophenol) nanocluster with high purity and high yield via "size focusing" and "ligand exchange" processes. The time of synthetic process was significantly reduced compared with previous synthetic routine. Au-130(SPh-Br)(50) was determined by UV-Vis absorption spectroscopy and matrix-assisted laser desorption ionization(MALDI) mass spectroscopy. Thermo-gravimetric analysis (TGA) and size-exclusion chromatogram(SEC) analyses confirmed the purity of Au-130(SPh-Br)(50). The yield of gold nanoclusters was 20%(based on HAuCl4)
