作者机构：
Department of Mathematics, Shantou University, Shantou 515063, China;College of Computer Science and Mathematics, Central South University of Forestry and Technology, Changsha 410004, China;School of Science, Hunan University of Technology, Zhuzhou 412007, China;Author to whom correspondence should be addressed.;[Zhimin Wang] School of Science, Hunan University of Technology, Zhuzhou 412007, China<&wdkj&>Author to whom correspondence should be addressed.
通讯机构：
[Zhimin Wang] S;School of Science, Hunan University of Technology, Zhuzhou 412007, China<&wdkj&>Author to whom correspondence should be addressed.
关键词：
fractional derivatives;Cauchy transform;self-similar measure;Bergman space
摘要：
Let μ be a self-similar measure with compact support K. The Hausdorff dimension of K is α. The Cauchy transform of μ is denoted by F(z). For 0<β<1, we define the function F[β], which compares with the fractional derivative of F of order β. Let Φ(z)=F(1/z),|z|<1. In this paper, we prove that Φ[β] belongs to Ap for 0<p<1/(β+1), and (Φ′)[β] belongs to Ap for 1≤p<1/β≤1/(2−α), where Ap is the Bergman space. At the same time, we give a value distribution property of F, which is similar to the big Picard theorem.
作者机构：
[Tan, Shi-Hua; Peng, Xiao-Fang; Dong, Xin; Wang, Xin-Jun; Zhang, Kai-Bo] Cent South Univ Forestry & Technol, Hunan Prov Key Lab Mat Surface, Changsha 410004, Peoples R China.;[Long, Meng-Qiu] Cent South Univ, Sch Phys & Elect, Changsha 410083, Peoples R China.
通讯机构：
[Peng, XF ] C;Cent South Univ Forestry & Technol, Hunan Prov Key Lab Mat Surface, Changsha 410004, Peoples R China.
关键词：
Electron transport properties;Thermoelectric performance;Graphene;Boron-nitride nanoribbon;Heterojunctions
摘要：
The electron transport properties and thermoelectric performance in graphene-boron-nitride-nanoribbon-based heterojunctions (GNR-BNN heterojunctions) have been studied by first -principles calculation. It is found that the electronic transport properties and thermoelectric performance properties are highly sensitive to the geometry details of the GNR-BNN heterojunction. Notably, our calculations reveal that the GNR-BNN heterojunctions not only can present obvious negative differential resistance effects, but also can present high thermoelectric figure of merit ZT: the figure -of -merit ZT will be over 1 at room temperature T = 300 K. Moreover, the thermoelectric performance is significantly enhanced by the combination of defects and alternating boron -nitride structures. Therefore, the GNR-BNN heterojunctions will provide the possibilities for designing and fabrication of multifunctional molecular device design.
摘要：
Sb-based materials exhibit considerable potential for sodium-ion storage owing to their high theoretical capacities. However, the bulk properties of Sb-based materials always result in poor cycling and rate performances. To overcome these issues, pyridine-regulated Sb@InSbS3 ultrafine nanoplates loaded on reduced graphene oxides (Sb@InSbS3@rGO) were designed and synthesized. During the synthesis process, pyridine was initially adopted to coordinate with In3+, and uniformly dispersed In2S3 ultrafine nanoplates on reduced graphene oxide were generated after sulfidation. Next, partial In3+ was exchanged with Sb3+, and Sb@InSbS3@rGO was obtained by using the subsequent annealing method. The unique structure of Sb@InSbS3@rGO effectively shortened the transfer path of sodium ions and electrons and provided a high pseudocapacitance. As the anode in sodium-ion batteries, the Sb@InSbS3@rGO electrode demonstrated a significantly higher reversible capacity, better stability (445 mAh<middle dot>g(-1) at 0.1 A<middle dot>g(-1) after 200 cycles and 212 mAh<middle dot>g(-1) at 2 A<middle dot>g(-1) after 1200 cycles), and superior rate (210 mAh<middle dot>g(-1) at 6.4 A<middle dot>g(-1)) than the electrode without pyridine (355 mAh<middle dot>g(-1) at 0.1 A<middle dot>g(-1) after 55 cycles and 109 mAh<middle dot>g(-1) at 2 A<middle dot>g(-1) after 770 cycles). Furthermore, full cells were assembled by using the Sb@InSbS3@rGO as anode and Na3V2(PO4)(3) as cathode, which demonstrated good cycling and rate performances and exhibited promising application prospects. These results indicate that adjusting the microstructure of electrode materials through coordination balance is A<middle dot>good strategy for obtaining high-capacity, high-rate, and long-cycle sodium storage performances.
作者：
Li Ji;Song Sheng;Fangyuan Shen;Lili Yang;Shizhi Wen;...
期刊：
CATENA,2024年237:107816 ISSN：0341-8162
通讯作者：
Li Ji<&wdkj&>Xu Wang<&wdkj&>Lixue Yang
作者机构：
[Song Sheng; Lili Yang; Shizhi Wen; Gongxiu He] School of Forestry, Central South University of Forestry and Technology, 410004 Changsha, PR China;[Fangyuan Shen; Lixue Yang] Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, 150040 Harbin, PR China;Hunan Key Laboratory for Conservation and Utilization of Biological Resources in the Nanyue Mountainous Region, Hengyang Normal University, 421008 Hengyang, PR China;School of Life Science, Hengyang Normal University, 421008 Hengyang, PR China;[Xu Wang] Research Institute of Tropical Forestry, Chinese Academy of Forestry, 510520 Guangzhou, PR China
通讯机构：
[Li Ji] S;[Xu Wang] R;[Lixue Yang] K;Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, 150040 Harbin, PR China<&wdkj&>Research Institute of Tropical Forestry, Chinese Academy of Forestry, 510520 Guangzhou, PR China<&wdkj&>School of Forestry, Central South University of Forestry and Technology, 410004 Changsha, PR China<&wdkj&>Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, 150040 Harbin, PR China
摘要：
Soil bacteria, as integral components of the soil microbial community, play pivotal roles in biogeochemical cycles and ecosystem functions in boreal forests. The altitudinal patterns of soil bacteria have been widely reported, but their community assembly is uncertain. Here, we investigated the soil bacterial community attributes (diversity, taxonomic and functional composition, and bacterial interactions) and ecological processes associated with community assembly on Mt. Oakley in the northern Greater Khingan Mountains via Illumina MiSeq sequencing and functional annotation tools. The alpha diversity indices of the soil bacteria exhibited a progressively decreasing trend with increasing altitude across seasons. The relative abundance of the dominant bacterial taxa was more sensitive to altitude than to season. More complex (more nodes and links) bacterial interactions were detected at the lowest and highest altitudinal sites, as well as in September. The variations in the taxonomic and functional compositions of the soil bacteria induced by altitude were mainly driven by the variations in soil pH and extracellular enzyme activities. Stochastic (dispersal limitation and drift) processes largely controlled the soil bacterial community assemblages across spatiotemporal scales. The community assemblages of soil bacteria were affected by altitude-induced changes in the taxonomic composition and functional groups. Collectively, our results have significant implications for understanding bacterial biogeography and community assembly mechanisms along altitudinal gradients in boreal forest ecosystems.
摘要：
The distribution of species is mostly influenced by climate synergistic effects and land use. The prediction of endangered species is dependent on fine-scale environmental features, especially in forests. The capture of fine-scale suitable habitats is bounded by low spatial resolution and coarse categorization. In this study, we improved the land use information and forest spatial detail through high forest thematic resolution land use data. To understand the relative influence of environmental factors, suitable habitat models for Chinese endangered tree species (Firmiana danxiaensis) under three climate and high forest thematic resolution land use conditions was constructed. We also assess F. danxiaensis 's response to climate and land use, and differential performance in land use on the suitable habitat. The area of suitable habitat for F. danxiaensis grows slowly under the SSP1-2.6 (shared social pathway scenario) scenario, decreases by 21.33% from the present to 2090 under the SSP2-4.5 scenario, and expands significantly under the SSP5-8.5 scenario. We conclude that high forest thematic resolution land use is beneficial in capturing species' requirements for specific habitats and especially necessary in predicting endangered species. At the same time, the distribution of suitable habitats for species is primarily driven by climate, and limited their development by land use. The study shows that the synthetic effects of climate and land use change on F. danxiaensis are positive, with a marked trend toward the northeast. As a consequence, some endangered species are able to benefit from future SSPs scenarios, in particular they respond more strongly to the SSP5-8.5 scenario than to the other scenarios. Assessing the role of changes in the climate and high forest thematic resolution land use on F. danxiaensis will help promote sustainable land use management and contribute to the conservation policy for Chinese endangered species.
摘要：
Aesthetic expectations often constitute the primary focus in marketing nature-based tourist destinations. However, academic research has insufficiently explored the disparity between tourists' aesthetic expectations and the actual aesthetic quality maintenance in shaping satisfaction. Employing the Expectation Confirmation Theory, this study utilized structural equation modeling techniques to analyze survey data (n = 446). It proposed and tested an Aesthetic Expectation Confirmation Model to examine the relationship between aesthetic expectations, experiential qualities, and tourist satisfaction in the Zhangjiajie National Forest Park. The empirical findings show that aesthetic expectations have a direct, negative impact on satisfaction, while aesthetic expectation confirmation has a positive direct impact on satisfaction. Moreover, aesthetic expectation confirmation also plays a mediating role in the influence of aesthetic expectations and experiential quality on satisfaction. Specifically, aesthetic expectations indirectly impact satisfaction negatively through aesthetic expectation confirmation, whereas aesthetic experiential qualities have a positive, indirect impact on satisfaction through the same process. These findings offer theoretical contributions to the literature on forest recreation aesthetics and hold practical significance for the planning and management of destination aesthetics.
摘要：
In eukaryotic cells, epigenetic modifications of DNA and histone play an important role in the regulation of gene expression. ROXY19 is a member of the plant specific CC-type glutaredoxins (GRXs). We found previously that ROXY19, by association with the TOPLESS/TOPLESS-related (TPL/TPR) family, strongly repressed a subset of genes which were positively regulated by the class II TGA factors. Arabidopsis plants ectopic expressing ROXY19 (ROXY19OE) were hypersensitive to xenobiotic chemicals due to the silencing of detoxification pathway genes. Here, we confirmed in vivo the interaction between ROXY19 and TPL. In order to understand the molecular mechanism underlying ROXY19-TPL module mediated gene repression, DNA methylation and histone deacetylation inhibitors were applied to assess the involvement of epigenetic modifications in the silencing of detoxification pathway genes in ROXY19OE plants. Promoter regions of some ROXY19 repressed genes were not methylated in wild-type/Col-0, and the methylation status were not altered in ROXY19OE. Furthermore, we investigated the role of epigenetic modifications in the antagonistic interplay between ethylene/jasmonic acid (ET/JA) and salicylic acid (SA) signaling pathways, which were supposed to be regulated by ROXY19.
关键词：
Cadmium ion;Enrichment and removal;Fluorescent probe;Functionalized glass slide
摘要：
Cadmium (Cd) is a widespread and highly toxic environmental pollutant, seriously threatening animal and plant growth. Therefore, monitoring and employing robust tools to enrich and remove Cd from the environment is a major challenge. In this work, by conjugating a fluorescent indicator (CCP) with a functionalized glass slide, a special composite material (CCPB) was constructed to enrich, remove, and monitor Cd2+ in water rapidly. Then Cd2+ could be effectively eluted by immersing the Cd-enriched CCPB in an ethylenediaminetetraacetic acid (EDTA) solution. With this, the CCPB was continuously reused. Its recovery of Cd2+was above and below 100 % after multiple uses by flame atomic absorption spectrometry (FAAS), which was excellent for practical use in enriching and removing Cd2+ in real aqueous samples. Therefore, CCPB is an ideal material for monitoring, enriching, and removing Cd2+ in wastewater, providing a robust tool for future practical applications of Cd enrichment and removal in the environment.
摘要：
Cadmium-contaminated water and food are seriously hazardous to the human health, especially liver injury. To understand the entanglement relationship between cadmium ion (Cd2+)-induced liver injury and the biomarker sulfur dioxide (SO2), a reliable bioanalytical tool is urgently needed, detecting SO2 to diagnose and evaluate the extent of liver injury in vivo. Herein, based on the F & ouml;rster resonance energy transfer (FRET) mechanism, a novel SO2-tunable NIR ratiometric fluorescent probe (<bold>SMP)</bold> was developed, it was used to diagnose and treat liver injury induced by Cd2+ in biosystems. Specifically, it was constructed by conjugating a NIR dicyanoisophorone with a NIR benzopyranate as the donor and acceptor, respectively, and the ratiometric response of SO2- regulated by the Michael addition reaction. In addition, <bold>SMP</bold> exhibits rapid reaction time (<15 s), two well-resolved emission peaks (68 nm) with less cross-talk between channels for high imaging resolution, superior selectivity, and low limit of detection (LOD=80.3 nM) for SO2 detection. Impressively, <bold>SMP</bold> has been successfully used for intracellular ratiometric imaging of Cd2+-induced SO2 and diagnostic and therapeutic evaluation in liver injury mice models with satisfactory results. Therefore, <bold>SMP</bold> may provide a powerful molecular tool for revealing the occurrence and development relationship between SO2 and Cd2+-induced liver injury. Environmental Implication Cadmium ions are one of the well-known toxic environmental pollutants, which are enriched in the human body through inhalation of cadmium-contaminated air or from the food chain, leading to damage in various organs, especially liver injury. Therefore, we developed a novel fluorescent probe that can specifically detect SO2 in Cd2+-induced liver injury, which is critically important for the diagnosis and evaluation of Cd2+-induced liver injury diseases. The specific detection of SO2 of this probe has been successfully demonstrated in live HepG2 cells and Cd2+-induced liver injury mice.
摘要：
The deterioration of food freshness and occurrence of spoilage is attributed to adverse external conditions during storage, leading to unnecessary waste and posing food safety concerns. Therefore, it is imperative to develop packaging that monitors and maintains food freshness. Intelligent and active packaging precisely meets these desired requirements. Intelligent packaging has the potential to offer real-time feedback on environmental changes within the packaging, providing valuable information about food quality and safety. On the other hand, active packaging represents a novel approach that incorporates active ingredients, such as antimicrobials into packages to enhance food quality. This review highlights recent advancements in dual -functional packaging utilizing various plant essential oils and pH -sensitive natural pigments. It explores different methods, with a focus on electrospinning, and also discusses existing challenges and future trends. This information aims to assist in the development of packaging systems, offering a new direction for the development of antibacterial and pHsensitive packaging.
期刊：
International Journal of Biological Macromolecules,2024年:131498 ISSN：0141-8130
通讯作者：
Luo, Feijun;Lin, Qinlu
作者机构：
[Yang, Feiyan; Wu, Yuchi; Qin, Dandan; Hu, Zuomin] College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China;[Luo, Yidan] College of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, Hunan, China;[Luo, Feijun] College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China. Electronic address: luofeijun888@csuft.edu.cn;[Lin, Qinlu] College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China. Electronic address: linqinlu@hotmail.com
通讯机构：
[Luo, Feijun; Lin, Qinlu] C;College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China. Electronic address:
摘要：
Momordica charantia L. is a kind of vegetable with medicinal value. As the main component of the vegetable, Momordica charantia polysaccharides (MCPs) mainly consist of galactose, galacturonic acid, xylose, rhamnose, mannose and the molecular weight range is 4.33 × 10(3)-1.16 × 10(6) Da. MCPs have been found to have various biological activities in recent years, such as anti-oxidation, anti-diabetes, anti-brain injury, anti-obesity, immunomodulatory and anti-inflammation. In this review, we systematically summarized the extraction methods, structural characteristics and physicochemical properties of MCPs. Especially MCPs modulate gut microbiota and cause the alterations of metabolic products, which can regulate different signaling pathways and target gene expressions to exert various functions. Meanwhile, the potential structure-activity relationships of MCPs were analyzed to provide a scientific basis for better development or modification of MCPs. Future researches on MCPs should focus on industrial extraction and molecular mechanisms. In East Asia, Momordica charantia L. is used as both food and medicine. It is not clear whether MCP has its unique biological effects. Further study on the difference between MCPs and other food-derived polysaccharides will be helpful to the development and potential application of Momordica charantia L.
摘要：
Octacosanol, a naturally occurring higher fatty alcohol, possessed numerous biological effects. However, octacosanol limited solubility in water due to its lipophilic nature and large structure, resulting in poor absorption and low bioavailability. To overcome this challenge, we developed a simple, environmentally friendly, and energy-efficient O/W nanoemulsion synthesis process. The nanoemulsion achieved an average droplet size of approximately 30nm, exhibited excellent dispersibility and stability at room temperature for 60days, and showcased robust storage properties insensitive to ambient temperature, pH, NaCl, and sucrose. Remarkably, the preparation process of the nanoemulsion maintained the biological activity of octacosanol while demonstrating significantly enhancing antioxidant activity compared to octacosanol suspension. Additionally, the nanoemulsion displayed negligible cytotoxic effects on Caco-2 cells. Significantly, the octacosanol nanoemulsion exhibited a 5.4-fold enhancement in transmembrane transport efficiency when compared to the suspension in Caco-2 cell monolayers. Additionally, in an in vivo experiment, there was a notable 2.9-fold increase in rat intestinal absorption. These findings could provide valuable insights into the development of octacosanol nanoemulsion, supporting its future applications and paving the way for the design of stable nanoemulsion systems for other lipophilic and sparingly soluble substances.
摘要：
Myocardial ischemia-reperfusion (MI/R) not only causes cardiac damage, but also causes severe renal damage. T8 is the 8th peptide identified by peptiomics in digested yak milk dregs and our previous studies showed that T8 had strong antioxidant activity. This study evaluated the protective effects and molecular mechanisms of MI/R-induced kidney injury in rats. Our results indicated that peptide T8 could increase ejection fraction (EF) and shortened fraction (FS), and degraded ST segment elevation, which ameliorated cardiac function in the MI/R rats. Peptide T8 could increase activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-PX), and decreased the contents of malondialdehyde (MDA), serum creatinine (Scr) and blood urea nitrogen (BUN), which could ameliorate renal insufficiency. Peptide T8 and kidney injury-related targets in the MI/R-damaged rats were obtained from network pharmacology analysis. KEGG analysis revealed that T8 might affect 54 signaling pathways and 13 key targets were obtained by PPI network analysis. The binding affinity of peptide T8 to Keap1 was found to be the strongest by molecular docking analysis. In the H2O2-induced HEK293 cell model, peptide T8 decreased reactive oxygen species (ROS) content and changed the expression ratio of Bcl-2 and Bax, thereby inhibiting mitochondria-dependent apoptosis. Further studies indicated that T8 could regulate Nrf2 pathway and downstream target genes such as NQO1, which could reduce oxidative stress-induced damage. These results suggest that peptide T 8 can exert renal protection via regulating Nrf2 pathway and apoptosis-related genes.
摘要：
The function of the pith ring and cortex in biological and fluid exchanges with the surrounding environment implies a natural intelligence. Their ingenious structure enables bamboo to thrive and impacts its processing and utilization. As drying is an essential step in bamboo product manufacturing, in this study, the effects of the pith ring and cortex on the water loss, deformation, and cracking of bamboo at the macroscopic, tissue, and cellular levels were investigated. Our study revealed a previously unknown mechanism of bamboo drying deformation. The cortex significantly affected the rate of water loss, whereas the pith ring did not significantly reduce the drying rate. Three deformation mechanisms originating from the pith ring were identified: the cell structure and orientation, self-flattening during drying, and excellent bending performance in the chord direction. These pith ring characteristics led to a larger radius of the bamboo splits during drying. These findings expand our understanding of the natural intelligence of the inner and outer layers of bamboo and provide important insights into bamboo drying, deformation, cracking, bionics, and composite material manufacturing.
期刊：
European Journal of Forest Research,2024年:1-15 ISSN：1612-4669
通讯作者：
Wu, Lichao;Lu, S;Wang, BP
作者机构：
[Wu, Lichao; Lu, Sheng; Liu, Sen; Fu, YuJia; Li, Xia] Cent South Univ Forestry & Technol, Key Lab Cultivat & Protect Nonwood Forest Trees, Minist Educ, Forestry Coll, Changsha 410004, Hunan, Peoples R China.;[Li, Peng] Guangxi Zhuang Autonomous Reg Forestry Res Inst, Nanning 530002, Guangxi, Peoples R China.;[Wang, Baoping; Qiao, Jie] Chinese Acad Forestry, Res Inst Nontimber Forestry, Zhengzhou 450003, Henan, Peoples R China.;[Li, Hui] Guangxi Diyuanzhiben Fertilizer Ind Co Ltd, Nanning 530022, Guangxi, Peoples R China.
通讯机构：
[Wu, LC; Wang, BP ; Lu, S ] C;Cent South Univ Forestry & Technol, Key Lab Cultivat & Protect Nonwood Forest Trees, Minist Educ, Forestry Coll, Changsha 410004, Hunan, Peoples R China.;Chinese Acad Forestry, Res Inst Nontimber Forestry, Zhengzhou 450003, Henan, Peoples R China.
关键词：
Soil bacteria;Fertilizer application duration;Ecological network;Carbon and nitrogen cycles;Functional genes
摘要：
Paulownia fortunei, one of the world's fastest growing timber tree species, is universally applied with fertilizer as a management approach to meet the nutrient requirements for efficient cultivation. The substantial effects of fertilizer on soil microorganisms in Paulownia plantations have been empirically tested; however, the successive chronosequence of soil microbial carbon and nitrogen functional genes under different fertilizer application durations remains limited. The objective of this study was to explore the characteristics of soil microorganisms involved in carbon and nitrogen cycling and greenhouse gas (GHG) production under different fertilizer application durations. Different fertilizer treatments, i.e., the short-term group (SG) versus the long-term group (LG), and durations were applied to subtropical plantations in southern China and compared with zonal evergreen broad-leaved forests. Results showed that fertilizer treatment significantly increased the relative abundance of Acidobacteriota and the expression of nirK and nosZ. The functional groups that dominated metabolism in SG and LG treatments belonged to Actinobacteria and Acidobacteriota, respectively, suggesting that the nutrient preference of microorganisms in forest soil may change from copiotrophs to oligotrophs with increasing fertilizer application duration. Correlation network analysis showed that the communities that dominated the carbon and nitrogen cycles belonged to Actinobacteria and Acidobacteriota, respectively, and were closely related to ammonium nitrogen and available iron. Actinobacteria and Acidobacteriota were likely the major taxa that affected soil GHG production under different fertilizer application durations. We concluded that long-term fertilizer use changed the preference of microbial nutrient uptake into recalcitrant nutrients, and the sensitivity of the microbial community to nutrients gradually decreased with increasing fertilizer application time. The dominant Actinobacteria affected soil carbon and nitrogen cycles largely by stimulating denitrification to increase the release of nitrous oxide, which might lead to the loss of nitrogen components and the intensification of the GHG effect with increasing fertilizer application time.
