Title:Semiotics of the Image:A Study of the Form of Meaning in Media Spectacles Author:Hu Yirong Press:Science Press Publication Date:2024ISBN:9789819645916"Image is one of the important academic keywords in rece...Title:Semiotics of the Image:A Study of the Form of Meaning in Media Spectacles Author:Hu Yirong Press:Science Press Publication Date:2024ISBN:9789819645916"Image is one of the important academic keywords in recent years."(Hu,2024,p.282)This observation succinctly captures our contemporary condition.Humans are truly living in an age dominated by images—the popularity of imagebased media such as TikTok,Facebook,and Instagram provides clear evidence of this.展开更多
Background:Social media plays an important role in shaping body image and self-perception,particularly among appearance-sensitive groups such as athletes.Although problematic social media use has been linked to body i...Background:Social media plays an important role in shaping body image and self-perception,particularly among appearance-sensitive groups such as athletes.Although problematic social media use has been linked to body image outcomes through processes such as social comparison,self-presentation,and evaluation sensitivity,these mechanisms remain underexplored among athletes with physical disabilities.This study aimed to examine the associations between social media use,addictive use patterns,and body image perception in this population,with a focus on these underlying psychological mechanisms.Methods:A total of 165 athletes with physical disability participated in this quantitative cross-sectional study.Data were collected through online surveys,including demographic questions,the Athlete Social Media Use Scale(content creation,usage frequency,and social media addiction subdimensions),and the Body Image Scale(negative perception,evaluation sensitivity,positive perception,and body modification).Parametric tests,correlation analyses,and group comparisons were performed to assess relationships between social media behaviors and body image dimensions.Results:Problematic social media use was moderately associated with higher negative body image and lower positive body image among athletes with physical disabilities(r=0.32–0.41,all p<0.001).Regression analysis indicated that overall social media use was a significant predictor of body image perception after controlling for demographic variables(β≈0.45,p<0.001),explaining approximately 19.5%of the variance.Mediation analyses using bootstrapping revealed that these psychological mechanisms partially mediated the relationship between problematic social media use and body image perceptions,with small-to-moderate indirect effects,indicating both statistical and practical significance.Conclusion:The findings indicate that not only general social media use but also addictive and problematic usage patterns are linked to vulnerable aspects of body image among athletes with physical disabilities.Increased exposure to idealized digital representations and upward social comparison processes may heighten sensitivity to external evaluation and undermine positive body perception.These results highlight the need for digital literacy initiatives,psychoeducational interventions,and supportive online environments that promote healthier social media engagement and body image among disabled athletes.展开更多
High-energy-density batteries are essential for electric vehicles and large-scale energy storage.Among emerging battery technologies,lithium-sulfur(Li-S)batteries stand out because their 16-electron sulfur redox chemi...High-energy-density batteries are essential for electric vehicles and large-scale energy storage.Among emerging battery technologies,lithium-sulfur(Li-S)batteries stand out because their 16-electron sulfur redox chemistry enables exceptionally high full-cell energy densities exceeding 500 Wh kg−1[1,2].However,the practical commercialization of Li-S batteries remains severely hindered by sluggish sulfur redox kinetics and the notorious lithium polysulfide(LiPS)shuttle effect[3,4].Introducing molecular mediators into electrolytes has emerged as an effective strategy to regulate sulfur redox pathways and accelerate sulfur conversion[5].To date,most studies have focused on functional sites that directly interact with sulfur species,such as chalcogen-containing groups,whereas the role of the molecular skeleton of mediators has received far less attention.展开更多
In tailings permeated by leachate containing thallium(Tl),manganese oxides(MnO x)are recognized as critical substances in immobilizing Tl and preventing its further migration into groundwater.However,dissolved Mn(...In tailings permeated by leachate containing thallium(Tl),manganese oxides(MnO x)are recognized as critical substances in immobilizing Tl and preventing its further migration into groundwater.However,dissolved Mn(Ⅱ)and Fe(Ⅲ)also exist in micro-oxic environments.The effects and mechanisms of the increased levels of these coexisting ions,driven by environmental processes such as rainfall leaching,on Tl(Ⅰ)retention remain largely unclear.This study established two systems using natural manganese sand and limestone sand as porous media,demonstrating that the elevated Mn(Ⅱ)/Fe(Ⅲ)loadings weakened Tl(Ⅰ)retention.Redundancy analysis identified media type and depth as primary factors shaping microbial communities,which subsequently influenced Tl(Ⅰ)immobilization.Manganese sand exhibited superior recovery capacity compared to limestone sand under higher Mn(Ⅱ)and Fe(Ⅲ)loadings.Co-occurrence network analyses revealed that media-microorganism suitability governs microbial community structure and heavy metal retention efficiency.Hydraulic impact and dissolved organic/inorganic cations reduced MnO x content,while the higher retention capacity of manganese sand was attributed to the presence of microorganisms with higher activity and abundance,as well as an increased abundance of microbial-generated MnO_( x).This study offers novel insights into the mechanisms underlying Tl(Ⅰ)retention in tailings,which is crucial for comprehending its environmental fate.展开更多
After four decades of intensive research,Helicobacter pylori(H.pylori),the gastric pathogen that fundamentally reshaped the understanding of peptic ulcer disease,remains notable resistance to standardized laboratory c...After four decades of intensive research,Helicobacter pylori(H.pylori),the gastric pathogen that fundamentally reshaped the understanding of peptic ulcer disease,remains notable resistance to standardized laboratory cultivation.This persistent technical challenge has significantly compromised reproducibility in both basic and clinical investigations.In a recent comparative study published in the World Journal of Gastroenterology,assessing ten liquid media across nine H.pylori strains,Kim et al demonstrated that growth efficiency and kinetic profiles are profoundly influenced by both medium composition and strain-specific characteristics.This commentary discusses the implications of these findings for microbial physiology,metabolic plasticity,and experimental reproducibility,arguing that the era of"precision microbiology"demands a more systematic and composition-driven approach to microbial cultivation.Reestablishing culture as a quantitative discipline holds significant potential to advance not only H.pylori research but also the broader understanding of host-microbe metabolic interactions.展开更多
Nanobubbles(NBs)have unique physicochemical properties,including a large specific surface area and high mass transfer efficiency.They can be produced using environmentally friendly,low-cost physical methods,making the...Nanobubbles(NBs)have unique physicochemical properties,including a large specific surface area and high mass transfer efficiency.They can be produced using environmentally friendly,low-cost physical methods,making them a promising green agent for enhanced oil recovery(EOR).However,the mechanism by which NBs enhance oil recovery remains unclear.In this study,we systematically investigate the stability of NBs under varying conditions(e.g.,salinity and temperature)using nanoparticle tracking analysis.The interfacial properties of NBs were evaluated through interfacial tension measurements,contact angle analysis,and oil film detachment experiments.Furthermore,multiscale flow experiments in porous media and oil displacement experiments were conducted to reveal the flow characteristics and oil displacement mechanisms of NBs.Results demonstrate that NBs exhibit excellent thermal stability,salt tolerance,shear resistance,and temporal stability.They can reduce oil-water interfacial tension while enhancing the solid interface's affinity for the aqueous phase and its oilrepellent properties.NBs improve oil recovery through multiple synergistic mechanisms(6%-9%)over conventional water flooding.NBs facilitate the penetration of the displacing fluid into microporous regions that are typically inaccessible to conventional water flooding.Simultaneously,Ostwald ripening—where smaller bubbles dissolve and larger ones grow via gas diffusion—in porous media leads to pore-throat blockage,increasing flow resistance and improving sweep efficiency.These synergistic mechanisms enhance the sweep efficiency of the displacing fluid by 27.72%.This study provides a theoretical foundation for the application of NBs in petroleum engineering and demonstrates significant potential for advancing efficient and environmentally sustainable oilfield development.展开更多
Blockage commonly occurs in and severally affects natural gas(mainly methane)reservoir exploitation,combustion ice(methane hydrate)exploitation and oil and gas pipeline transportation.The formation of methane hydrates...Blockage commonly occurs in and severally affects natural gas(mainly methane)reservoir exploitation,combustion ice(methane hydrate)exploitation and oil and gas pipeline transportation.The formation of methane hydrates is known as one important cause of blockage,but the effects of hydrate distribution on seepage and blockage are rarely studied in experiments.This study employed different proportions of dry and wet sands to simulate three thickness of hydrate-bearing porous media and obtained a uniform kinetic relationship of hydrate formation(N=K(■)).Quantitative results indicate that both water and methane seepage can induce hydrate saturation increase in both hydrate-bearing and hydrate-free zones,which gradually causes the blockage of up to 12.5 MPa(at 6.0 MPa backpressure).The hydratebearing porous media with a uniform saturation is not easy to cause blockage unless the hydrate saturation is high enough.In addition,based on the hydrate-bearing porous media with different thicknesses,this study successively measured the water phase permeability.In addition,the calculation method for blockage location based on pressure evolution was proposed with an error of less than 8%.These findings can help understand and mitigate issues related to flow blockages during oil and gas exploitation and transportation.展开更多
Driven by artificial intelligence,the exponential growth in computational and energy demands has spurred exploration of alternative computing paradigms beyond traditional electronic processors.Optical neural networks(...Driven by artificial intelligence,the exponential growth in computational and energy demands has spurred exploration of alternative computing paradigms beyond traditional electronic processors.Optical neural networks(ONNs),a promising neuromorphic platform with light-speed computing,offer inherent advantages for accelerating artificial intelligence,including massive parallelism,ultralow latency,and reduced power consumption.However,most existing ONNs lack physical programmability after deployment due to rigid optical interconnects and limited optical transformations,which restrict their performance across diverse machine learning tasks.We propose a programmable and scalable ONN,an optoelectronic reservoir computing architecture integrated with cascaded linear disordered media.The key novelty lies in its physical kernel optimization via genetic algorithms,which involves programming diffuser orientations within a reduced search space and integrating wavefront shaping for feature preprocessing,thereby enhancing both optical random projection and preprocessing transformations.This platform achieves competitive accuracy in image classification with 93.5%fewer parameters than digital models;it also performs well in graph classification and human action recognition,proving feasibility for non-Euclidean and time-series datasets.Our work addresses the critical programmability bottleneck of ONNs,paving the way for scalable,energyefficient ONNs with programmable physical kernels and opening new paths for high-performance physicsinspired neuromorphic computing in resource-constrained scenarios.展开更多
Correction to:Opto-Electronic Advances http://gffzzd3cc09b8251d45dfskovccq9p6ppk6ook.ffgz.tsg.suse.edu.cn/10.29026/oea.2025.250013 published 25 October 2025 After the publication of this article,it was brought to our attention that the funding information in the Ackno...Correction to:Opto-Electronic Advances http://gffzzd3cc09b8251d45dfskovccq9p6ppk6ook.ffgz.tsg.suse.edu.cn/10.29026/oea.2025.250013 published 25 October 2025 After the publication of this article,it was brought to our attention that the funding information in the Acknowledgements section contained an error.Correction details are listed below.展开更多
The elastic Helmholtz equation is capable of readily simulating attenuation and dispersion behaviors of the elastic wave and performing full-wavefield modeling in wave-equation-based elastic inversions and migrations....The elastic Helmholtz equation is capable of readily simulating attenuation and dispersion behaviors of the elastic wave and performing full-wavefield modeling in wave-equation-based elastic inversions and migrations.However,solving the elastic Helmholtz equation using a finite-difference frequency-domain(FDFD)method is computationally prohibitive especially in heterogeneous media with fine-scale heterogeneities.The FDFD method usually leads to a large discrete linear system of the elastic Helmholtz equation.We develop a multiscale method of FDFD to solve the elastic Helmholtz equation in isotropic media based on the general framework of heterogeneous multiscale method(HMM).The HMM framework decomposes the elastic Helmholtz problem into a series of microscale problems and a macroscale problem.The idea of multiscale basis functions is introduced to decouple the coupled microscale and macroscale problems and to capture fine-scale heterogeneity in medium properties.A reconstruction-based downscaling coupling and a flux-based upscaling coupling are used to convey the fine-scale medium heterogeneity to a coarse scale.The dimension of the resulting linear system is much smaller than those of linear systems generated with the conventional FDFD methods.We use a homogeneous model and a heterogeneous model to investigate the effects of the size of local sampling domains and the coarse-element number per S-wave wavelength on the accuracy of our new method,and employ two highly heterogeneous models to demonstrate the superiority in terms of the efficiency and memory consumption of our method based on the optimal local sampling-domain size and stable coarse-mesh discretization.The results demonstrate that our new method can approximate the finescale reference FDFD solutions with a significant decrease in computational complexity.展开更多
Global dependence on fossil fuels has led to escalating atmospheric carbon dioxide emissions.The consecutive greenhouse effect poses a serious threat to the human habitat,rendering carbon dioxide abatement a key focus...Global dependence on fossil fuels has led to escalating atmospheric carbon dioxide emissions.The consecutive greenhouse effect poses a serious threat to the human habitat,rendering carbon dioxide abatement a key focus in contemporary research.Hydrate-based CO2 sequestration offers a promising pathway for carbon capture and storage,though its efficiency is strongly influenced by pressure,salinity,and sediment properties.In this study,the kinetic characteristics and occurrence states of CO2 hydrates in porous media were systematically investigated under varying pressures(3.0-3.6 MPa),NaCl concentrations(0-3.5%),and sediment types(quartz sand vs kaolinite).Results reveal a non-linear pressure dependence—gas storage capacity increases by 16.3%as pressure rises from 3.0 MPa to 3.3 MPa,but diminishes to 9.4%with further increase to 3.6 MPa.NaCl exhibits dual inhibitory effects:Thermodynamically shifting the phase equilibrium leftward in the P-T domain and kinetically suppressing growth,with 3.5%NaCl systems exhibiting persistently slow hydrate formation.Sediment type also plays a critical role,as kaolinite's low-permeability clay structure substantially impedes hydrate formation compared to quartz sand while altering hydrate distribution patterns.Understanding the interplay between pressure-driven efficiency gains and inhibitor-mediated stability control across diverse geological environments is essential for optimizing hydrate-based CO2 storage strategies.展开更多
In recent years bird hunting has become a topical issue in public debate in Poland.Some organizations and communities actively engaged in nature conservation efforts propose a complete ban on hunting,arguing it needs ...In recent years bird hunting has become a topical issue in public debate in Poland.Some organizations and communities actively engaged in nature conservation efforts propose a complete ban on hunting,arguing it needs to be introduced for ethical reasons and to ensure a more effective species protection.This discussion frequently involves cases when hunters break the law,illustrated by photographs published on social media,documenting culling of legally protected species.In response hunters mention the need to verify the sources and the context for published materials.展开更多
Imaging through an optically thick scattering medium remains a formidable challenge,typically addressed by treating the medium as a stochastic"black box"that scrambles information into random speckle pattern...Imaging through an optically thick scattering medium remains a formidable challenge,typically addressed by treating the medium as a stochastic"black box"that scrambles information into random speckle patterns.Here,we present a fundamental shift in this perspective:under incoherent illumination,the scattering medium functions as a random array of micro-phase-pinholes,serving as discrete channels for information transmission.By proposing and validating a micro-phase-pinhole model,we reveal that individual microchannels possess distinct transmission capacities that govern imaging quality.Crucially,we demonstrate that specific,randomly distributed combinations of these phase pinholes can spontaneously generate high-fidelity images directly within the speckle field.Guided by this fundamental physical interpretation,we develop a feature fusion algorithm that extracts and integrates high-quality information from selective channel combinations within a single speckle pattern.This work reveals the underlying physical principles of incoherent information delivery through scattering media.Transition from the"black box"view to a deterministic channel model is a strong conceptual leap,offering a novel pathway to overcome thickness limitation in imaging through scattering media.展开更多
How does Western media frame narratives about China?This article deconstructs a major outlet’s poverty coverage,revealing subtle storytelling techniques that shape perceptions over facts.A mother’s smile,students li...How does Western media frame narratives about China?This article deconstructs a major outlet’s poverty coverage,revealing subtle storytelling techniques that shape perceptions over facts.A mother’s smile,students listening to teachers,law enforcement,news items found in traditional and social media,and the plethora of non-fiction books surprisingly have much in common.展开更多
This article examines the emergence of a“planned obsolescence of communication”in the digital age,where information is produced,circulated,and discarded according to the economic logic of digital capitalism rather t...This article examines the emergence of a“planned obsolescence of communication”in the digital age,where information is produced,circulated,and discarded according to the economic logic of digital capitalism rather than the civic needs of democratic societies.The analysis traces how the manufacture of public opinion has shifted from traditional ideological systems-whose narratives once unified large groups through durable mythologies-to a contemporary media environment dominated by junk news,moral anger,and algorithmically curated pseudo-realities.The decline of shared truths,combined with the rise of abstract,entertainment-driven narratives,has weakened the capacity of nation-states to maintain legitimate consensus.Digital oligarchies,motivated by advertising revenue and attention-maximisation,now shape the informational order,creating conditions in which falsehood spreads more efficiently than fact,and dissent becomes a commodity rather than a democratic tool.The article situates this crisis within a broader intellectual tradition,from the MacBride Report to recent whistle-blower testimony and“The Social Dilemma”documentary,to argue that media systems increasingly function through deliberate obsolescence:Information is designed to expire,outrage is engineered for profit,and public discourse is destabilised by incessant novelty.The planned obsolescence of communication thus represents a structural threat to democracy that requires both regulatory reform and a revival of critical media research grounded in public purpose rather than commercial utility.展开更多
Recently,19 media practitioners from China's neighboring countries visited Beijing Economic Technological Development Area (E-Town),making stops at the Innovation Operation Center of the High-Level Autonomous Driv...Recently,19 media practitioners from China's neighboring countries visited Beijing Economic Technological Development Area (E-Town),making stops at the Innovation Operation Center of the High-Level Autonomous Driving Demonstration Zone and ZGC E-TOWN International Robotics Industrial Park.During the visit,the foreign media representatives learned about individual technological achievements and gained insight into a comprehensive innovation ecosystem covering product research and development,industrial cultivation,and urban application.展开更多
A Dutch-born video creator uses his influential social media presence to share authentic stories of Chinese life with European audiences.SANDER Kole,a video creator born in the Netherlands,has become a superstar influ...A Dutch-born video creator uses his influential social media presence to share authentic stories of Chinese life with European audiences.SANDER Kole,a video creator born in the Netherlands,has become a superstar influencer on social media,connecting Chinese and European cultures.With almost 20 million followers on platforms like TikTok,YouTube,Douyin,Xiaohongshu,and WeChat,he uses short videos to show European audiences real life stories in China.展开更多
This paper develops a conceptual framework in which fan engagement is theorised as a partial mediator of the relationship between social media interaction and sports event brand loyalty.Five propositions are advanced ...This paper develops a conceptual framework in which fan engagement is theorised as a partial mediator of the relationship between social media interaction and sports event brand loyalty.Five propositions are advanced and stress-tested against three distinct empirical regimes:ongoing league competitions,recurring club tournaments,and quadrennial mega-events.The framework departs from the dominant treatment of engagement as the sole psychological mechanism by explicitly acknowledging competing mediators,and by introducing a moderated-mediation extension in which platform affordances and community management practices condition the strength of the engagement pathway.Comparative data across the NBA,the UEFA Champions League,the FIFA World Cup Qatar 2022,and the Paris 2024 Olympic Games reveal that aggregate engagement volume varies by more than two orders of magnitude across regimes,and that the proposed framework applies with greatest force to ongoing league contexts where fan identification is durable.The paper also examines whether the model,developed largely on Western data,retains explanatory power in the distinctive platform ecology of Chinese sports media.Cross-sectional evidence dominates the field but cannot adjudicate the endogeneity between engagement and loyalty;longitudinal and quasi-experimental designs are argued to be necessary next steps.Implications are drawn for theory,for managerial practice,and for the widespread industry preoccupation with follower counts as a proxy for brand strength.展开更多
The effective diffusion coefficient(EDC)is a fundamental parameter for characterizing gas transport in porous media.Structural damages within the pore network significantly affect the EDC due to the alterations in dif...The effective diffusion coefficient(EDC)is a fundamental parameter for characterizing gas transport in porous media.Structural damages within the pore network significantly affect the EDC due to the alterations in diffusion pathways.To advance the understanding of these effects,we introduce a novel,physics-based model that explicitly captures the complex morphology of damaged porous structures.Utilizing a generalized tree-like bifurcation network framework combined with Monte Carlo simulations,our approach models gas diffusion according to Fick's law,deriving a comprehensive expression for EDC as a function of critical geometric parameters:porosity,fractal dimension of pore space,surface roughness,connectivity,total branching level,branching angle,and pore damage extent.This methodology eschews empirical assumptions,relying solely on fundamental physical principles,thus ensuring high model fidelityand predictive robustness for complex porous systems.Validation against extensive experimental datasets demonstrates strong agreement,confirmingthe model's accuracy.Key findingsreveal that pore damage shifts the optimal diameter ratio(ODR)from 0.772 into a broader range of 0.788-0.876 under damage scenarios.Moreover,higher branching levels and smaller angles increase the sensitivity of EDC to diameter ratio variations.Tailored pore morphology,particularly in designing different diameter ratios for damaged versus undamaged zones,can significantlyenhance gas diffusion efficiency.These results offer a theoretical basis for designing damage-tolerant catalyst porous media during the lifecycle,improving diffusion efficiencyby 0.86%to 3.81%compared to traditional designs across three damage models.展开更多
In certain geological conditions,the electrical anisotropy characteristics of media are considered an important influencing factor.Ignoring their impact may lead to incorrect data interpretation.To address this,this p...In certain geological conditions,the electrical anisotropy characteristics of media are considered an important influencing factor.Ignoring their impact may lead to incorrect data interpretation.To address this,this paper develops a 3D fast forward algorithm for multi-frequency controlled-source electromagnetic(CSEM)anisotropic media based on model order reduction techniques,to understand the impact of electrical anisotropy characteristics on CSEM data.The paper derives the electric eld equations satised by CSEM under electrically anisotropic conductivity conditions,discretizes the equation set using unstructured vector nite elements,and combines the shift-and-inverse rational Krylov subspace algorithm to achieve the research of a 3D fast forward algorithm for multi-frequency CSEM in arbitrary electrically anisotropic media.A twodimensional electrically anisotropic geoelectric model is designed for algorithm testing,and the test results are compared with publicly available algorithms to verify the correctness of the developed program in this paper.To further analyze the algorithm's efciency and the impact of electrical anisotropy characteristics on CSEM data,a three-dimensional electrically anisotropic media model is constructed for numerical testing.The test results show that the developed algorithm in this paper can achieve fast forward modeling of multi-frequency CSEM,with an acceleration ratio of more than 10 times,and it is not aected by the number of frequency points.Additionally,the CSEM response of electrically anisotropic media shows signicant changes compared to isotropic media,and the single-branch apparent resistivity curves and contour maps can eectively identify the anisotropic principal axis direction.展开更多
摘要Title:Semiotics of the Image:A Study of the Form of Meaning in Media Spectacles Author:Hu Yirong Press:Science Press Publication Date:2024ISBN:9789819645916"Image is one of the important academic keywords in recent years."(Hu,2024,p.282)This observation succinctly captures our contemporary condition.Humans are truly living in an age dominated by images—the popularity of imagebased media such as TikTok,Facebook,and Instagram provides clear evidence of this.
基金supported by the İnonu University Scientific Research Projects Unit(SBA-2026-4657),Türkiye.
摘要Background:Social media plays an important role in shaping body image and self-perception,particularly among appearance-sensitive groups such as athletes.Although problematic social media use has been linked to body image outcomes through processes such as social comparison,self-presentation,and evaluation sensitivity,these mechanisms remain underexplored among athletes with physical disabilities.This study aimed to examine the associations between social media use,addictive use patterns,and body image perception in this population,with a focus on these underlying psychological mechanisms.Methods:A total of 165 athletes with physical disability participated in this quantitative cross-sectional study.Data were collected through online surveys,including demographic questions,the Athlete Social Media Use Scale(content creation,usage frequency,and social media addiction subdimensions),and the Body Image Scale(negative perception,evaluation sensitivity,positive perception,and body modification).Parametric tests,correlation analyses,and group comparisons were performed to assess relationships between social media behaviors and body image dimensions.Results:Problematic social media use was moderately associated with higher negative body image and lower positive body image among athletes with physical disabilities(r=0.32–0.41,all p<0.001).Regression analysis indicated that overall social media use was a significant predictor of body image perception after controlling for demographic variables(β≈0.45,p<0.001),explaining approximately 19.5%of the variance.Mediation analyses using bootstrapping revealed that these psychological mechanisms partially mediated the relationship between problematic social media use and body image perceptions,with small-to-moderate indirect effects,indicating both statistical and practical significance.Conclusion:The findings indicate that not only general social media use but also addictive and problematic usage patterns are linked to vulnerable aspects of body image among athletes with physical disabilities.Increased exposure to idealized digital representations and upward social comparison processes may heighten sensitivity to external evaluation and undermine positive body perception.These results highlight the need for digital literacy initiatives,psychoeducational interventions,and supportive online environments that promote healthier social media engagement and body image among disabled athletes.
基金financially supported by the National Natural Science Foundation of China(Grant Nos.52573091 and 52301285)the Department of Science and Technology of Hubei Province(Grant No.2024CSA076).
摘要High-energy-density batteries are essential for electric vehicles and large-scale energy storage.Among emerging battery technologies,lithium-sulfur(Li-S)batteries stand out because their 16-electron sulfur redox chemistry enables exceptionally high full-cell energy densities exceeding 500 Wh kg−1[1,2].However,the practical commercialization of Li-S batteries remains severely hindered by sluggish sulfur redox kinetics and the notorious lithium polysulfide(LiPS)shuttle effect[3,4].Introducing molecular mediators into electrolytes has emerged as an effective strategy to regulate sulfur redox pathways and accelerate sulfur conversion[5].To date,most studies have focused on functional sites that directly interact with sulfur species,such as chalcogen-containing groups,whereas the role of the molecular skeleton of mediators has received far less attention.
基金supported by the National Natural Science Foundation of China(No.52422005)the Natural Science Foundation of Chongqing,China(No.CSTB2025NSCQ-JQX0029).
摘要In tailings permeated by leachate containing thallium(Tl),manganese oxides(MnO x)are recognized as critical substances in immobilizing Tl and preventing its further migration into groundwater.However,dissolved Mn(Ⅱ)and Fe(Ⅲ)also exist in micro-oxic environments.The effects and mechanisms of the increased levels of these coexisting ions,driven by environmental processes such as rainfall leaching,on Tl(Ⅰ)retention remain largely unclear.This study established two systems using natural manganese sand and limestone sand as porous media,demonstrating that the elevated Mn(Ⅱ)/Fe(Ⅲ)loadings weakened Tl(Ⅰ)retention.Redundancy analysis identified media type and depth as primary factors shaping microbial communities,which subsequently influenced Tl(Ⅰ)immobilization.Manganese sand exhibited superior recovery capacity compared to limestone sand under higher Mn(Ⅱ)and Fe(Ⅲ)loadings.Co-occurrence network analyses revealed that media-microorganism suitability governs microbial community structure and heavy metal retention efficiency.Hydraulic impact and dissolved organic/inorganic cations reduced MnO x content,while the higher retention capacity of manganese sand was attributed to the presence of microorganisms with higher activity and abundance,as well as an increased abundance of microbial-generated MnO_( x).This study offers novel insights into the mechanisms underlying Tl(Ⅰ)retention in tailings,which is crucial for comprehending its environmental fate.
基金Supported by Scientific Research Project of Putian University,No.2022059Special Project for Outstanding Young Talents of Putian University,No.2024072Natural Science Foundation of Fujian Province,No.2023J01160.
摘要After four decades of intensive research,Helicobacter pylori(H.pylori),the gastric pathogen that fundamentally reshaped the understanding of peptic ulcer disease,remains notable resistance to standardized laboratory cultivation.This persistent technical challenge has significantly compromised reproducibility in both basic and clinical investigations.In a recent comparative study published in the World Journal of Gastroenterology,assessing ten liquid media across nine H.pylori strains,Kim et al demonstrated that growth efficiency and kinetic profiles are profoundly influenced by both medium composition and strain-specific characteristics.This commentary discusses the implications of these findings for microbial physiology,metabolic plasticity,and experimental reproducibility,arguing that the era of"precision microbiology"demands a more systematic and composition-driven approach to microbial cultivation.Reestablishing culture as a quantitative discipline holds significant potential to advance not only H.pylori research but also the broader understanding of host-microbe metabolic interactions.
基金the financial support of Important National Science and Technology Specific Projects of China(No.2025ZD1404403)Fund of State Key Laboratory of Deep Oil and Gas,China University of Petroleum(East China)(No.SKLDOG2024-ZYRC-04)+1 种基金Science and Technology Support Plan for Youth Innovation of Colleges and Universities of Shandong Province(No.2024KJH122)Taishan Scholars Program of Shandong Province。
摘要Nanobubbles(NBs)have unique physicochemical properties,including a large specific surface area and high mass transfer efficiency.They can be produced using environmentally friendly,low-cost physical methods,making them a promising green agent for enhanced oil recovery(EOR).However,the mechanism by which NBs enhance oil recovery remains unclear.In this study,we systematically investigate the stability of NBs under varying conditions(e.g.,salinity and temperature)using nanoparticle tracking analysis.The interfacial properties of NBs were evaluated through interfacial tension measurements,contact angle analysis,and oil film detachment experiments.Furthermore,multiscale flow experiments in porous media and oil displacement experiments were conducted to reveal the flow characteristics and oil displacement mechanisms of NBs.Results demonstrate that NBs exhibit excellent thermal stability,salt tolerance,shear resistance,and temporal stability.They can reduce oil-water interfacial tension while enhancing the solid interface's affinity for the aqueous phase and its oilrepellent properties.NBs improve oil recovery through multiple synergistic mechanisms(6%-9%)over conventional water flooding.NBs facilitate the penetration of the displacing fluid into microporous regions that are typically inaccessible to conventional water flooding.Simultaneously,Ostwald ripening—where smaller bubbles dissolve and larger ones grow via gas diffusion—in porous media leads to pore-throat blockage,increasing flow resistance and improving sweep efficiency.These synergistic mechanisms enhance the sweep efficiency of the displacing fluid by 27.72%.This study provides a theoretical foundation for the application of NBs in petroleum engineering and demonstrates significant potential for advancing efficient and environmentally sustainable oilfield development.
基金financially supported by the National Natural Science Foundation of China(524B2088,52525602,52306205)the National Key Research and Development Plan of China(2021YFC2800902)the Fundamental Research Funds for the Central Universities in China(DUT21ZD103)。
摘要Blockage commonly occurs in and severally affects natural gas(mainly methane)reservoir exploitation,combustion ice(methane hydrate)exploitation and oil and gas pipeline transportation.The formation of methane hydrates is known as one important cause of blockage,but the effects of hydrate distribution on seepage and blockage are rarely studied in experiments.This study employed different proportions of dry and wet sands to simulate three thickness of hydrate-bearing porous media and obtained a uniform kinetic relationship of hydrate formation(N=K(■)).Quantitative results indicate that both water and methane seepage can induce hydrate saturation increase in both hydrate-bearing and hydrate-free zones,which gradually causes the blockage of up to 12.5 MPa(at 6.0 MPa backpressure).The hydratebearing porous media with a uniform saturation is not easy to cause blockage unless the hydrate saturation is high enough.In addition,based on the hydrate-bearing porous media with different thicknesses,this study successively measured the water phase permeability.In addition,the calculation method for blockage location based on pressure evolution was proposed with an error of less than 8%.These findings can help understand and mitigate issues related to flow blockages during oil and gas exploitation and transportation.
基金supported by the National Natural Science Foundation of China(Grant Nos.12504505,62475286,and 62405374)the Innovation Science Fund of National University of Defense Technology(Grant Nos.ZK25-43 and 23-ZZCX-JDZ-21)。
摘要Driven by artificial intelligence,the exponential growth in computational and energy demands has spurred exploration of alternative computing paradigms beyond traditional electronic processors.Optical neural networks(ONNs),a promising neuromorphic platform with light-speed computing,offer inherent advantages for accelerating artificial intelligence,including massive parallelism,ultralow latency,and reduced power consumption.However,most existing ONNs lack physical programmability after deployment due to rigid optical interconnects and limited optical transformations,which restrict their performance across diverse machine learning tasks.We propose a programmable and scalable ONN,an optoelectronic reservoir computing architecture integrated with cascaded linear disordered media.The key novelty lies in its physical kernel optimization via genetic algorithms,which involves programming diffuser orientations within a reduced search space and integrating wavefront shaping for feature preprocessing,thereby enhancing both optical random projection and preprocessing transformations.This platform achieves competitive accuracy in image classification with 93.5%fewer parameters than digital models;it also performs well in graph classification and human action recognition,proving feasibility for non-Euclidean and time-series datasets.Our work addresses the critical programmability bottleneck of ONNs,paving the way for scalable,energyefficient ONNs with programmable physical kernels and opening new paths for high-performance physicsinspired neuromorphic computing in resource-constrained scenarios.
摘要Correction to:Opto-Electronic Advances http://gffzzd3cc09b8251d45dfskovccq9p6ppk6ook.ffgz.tsg.suse.edu.cn/10.29026/oea.2025.250013 published 25 October 2025 After the publication of this article,it was brought to our attention that the funding information in the Acknowledgements section contained an error.Correction details are listed below.
基金the financial support received from the National Natural Foundation of China(Grant No.42374163)the Key Program of Natural Science Foundation of Sichuan Province(Grant No.2023NSFSC0019)the Open Fund of Key Laboratory of Earth Exploration and Information Techniques(Chengdu University of Technology),Ministry of Education(Grant No.EEME202505)。
摘要The elastic Helmholtz equation is capable of readily simulating attenuation and dispersion behaviors of the elastic wave and performing full-wavefield modeling in wave-equation-based elastic inversions and migrations.However,solving the elastic Helmholtz equation using a finite-difference frequency-domain(FDFD)method is computationally prohibitive especially in heterogeneous media with fine-scale heterogeneities.The FDFD method usually leads to a large discrete linear system of the elastic Helmholtz equation.We develop a multiscale method of FDFD to solve the elastic Helmholtz equation in isotropic media based on the general framework of heterogeneous multiscale method(HMM).The HMM framework decomposes the elastic Helmholtz problem into a series of microscale problems and a macroscale problem.The idea of multiscale basis functions is introduced to decouple the coupled microscale and macroscale problems and to capture fine-scale heterogeneity in medium properties.A reconstruction-based downscaling coupling and a flux-based upscaling coupling are used to convey the fine-scale medium heterogeneity to a coarse scale.The dimension of the resulting linear system is much smaller than those of linear systems generated with the conventional FDFD methods.We use a homogeneous model and a heterogeneous model to investigate the effects of the size of local sampling domains and the coarse-element number per S-wave wavelength on the accuracy of our new method,and employ two highly heterogeneous models to demonstrate the superiority in terms of the efficiency and memory consumption of our method based on the optimal local sampling-domain size and stable coarse-mesh discretization.The results demonstrate that our new method can approximate the finescale reference FDFD solutions with a significant decrease in computational complexity.
基金supported by the National Natural Science Foundation of China(U21B2087)。
摘要Global dependence on fossil fuels has led to escalating atmospheric carbon dioxide emissions.The consecutive greenhouse effect poses a serious threat to the human habitat,rendering carbon dioxide abatement a key focus in contemporary research.Hydrate-based CO2 sequestration offers a promising pathway for carbon capture and storage,though its efficiency is strongly influenced by pressure,salinity,and sediment properties.In this study,the kinetic characteristics and occurrence states of CO2 hydrates in porous media were systematically investigated under varying pressures(3.0-3.6 MPa),NaCl concentrations(0-3.5%),and sediment types(quartz sand vs kaolinite).Results reveal a non-linear pressure dependence—gas storage capacity increases by 16.3%as pressure rises from 3.0 MPa to 3.3 MPa,but diminishes to 9.4%with further increase to 3.6 MPa.NaCl exhibits dual inhibitory effects:Thermodynamically shifting the phase equilibrium leftward in the P-T domain and kinetically suppressing growth,with 3.5%NaCl systems exhibiting persistently slow hydrate formation.Sediment type also plays a critical role,as kaolinite's low-permeability clay structure substantially impedes hydrate formation compared to quartz sand while altering hydrate distribution patterns.Understanding the interplay between pressure-driven efficiency gains and inhibitor-mediated stability control across diverse geological environments is essential for optimizing hydrate-based CO2 storage strategies.
摘要In recent years bird hunting has become a topical issue in public debate in Poland.Some organizations and communities actively engaged in nature conservation efforts propose a complete ban on hunting,arguing it needs to be introduced for ethical reasons and to ensure a more effective species protection.This discussion frequently involves cases when hunters break the law,illustrated by photographs published on social media,documenting culling of legally protected species.In response hunters mention the need to verify the sources and the context for published materials.
基金supported by National Natural Science Foundation of China(12574331,82330061)National Key R&D Program of China(SQ2024YFC3016502)+2 种基金Hong Kong Research Grant Council(15125724),Hong Kong Innovation and Technology Commission(MHP/206/24)Shenzhen Science and Technology Innovation Commission(JCYJ20220818100202005)Hong Kong Polytechnic University(P0045762,P0049101,P0048314,P0059222,P0054249).
摘要Imaging through an optically thick scattering medium remains a formidable challenge,typically addressed by treating the medium as a stochastic"black box"that scrambles information into random speckle patterns.Here,we present a fundamental shift in this perspective:under incoherent illumination,the scattering medium functions as a random array of micro-phase-pinholes,serving as discrete channels for information transmission.By proposing and validating a micro-phase-pinhole model,we reveal that individual microchannels possess distinct transmission capacities that govern imaging quality.Crucially,we demonstrate that specific,randomly distributed combinations of these phase pinholes can spontaneously generate high-fidelity images directly within the speckle field.Guided by this fundamental physical interpretation,we develop a feature fusion algorithm that extracts and integrates high-quality information from selective channel combinations within a single speckle pattern.This work reveals the underlying physical principles of incoherent information delivery through scattering media.Transition from the"black box"view to a deterministic channel model is a strong conceptual leap,offering a novel pathway to overcome thickness limitation in imaging through scattering media.
摘要How does Western media frame narratives about China?This article deconstructs a major outlet’s poverty coverage,revealing subtle storytelling techniques that shape perceptions over facts.A mother’s smile,students listening to teachers,law enforcement,news items found in traditional and social media,and the plethora of non-fiction books surprisingly have much in common.
摘要This article examines the emergence of a“planned obsolescence of communication”in the digital age,where information is produced,circulated,and discarded according to the economic logic of digital capitalism rather than the civic needs of democratic societies.The analysis traces how the manufacture of public opinion has shifted from traditional ideological systems-whose narratives once unified large groups through durable mythologies-to a contemporary media environment dominated by junk news,moral anger,and algorithmically curated pseudo-realities.The decline of shared truths,combined with the rise of abstract,entertainment-driven narratives,has weakened the capacity of nation-states to maintain legitimate consensus.Digital oligarchies,motivated by advertising revenue and attention-maximisation,now shape the informational order,creating conditions in which falsehood spreads more efficiently than fact,and dissent becomes a commodity rather than a democratic tool.The article situates this crisis within a broader intellectual tradition,from the MacBride Report to recent whistle-blower testimony and“The Social Dilemma”documentary,to argue that media systems increasingly function through deliberate obsolescence:Information is designed to expire,outrage is engineered for profit,and public discourse is destabilised by incessant novelty.The planned obsolescence of communication thus represents a structural threat to democracy that requires both regulatory reform and a revival of critical media research grounded in public purpose rather than commercial utility.
摘要Recently,19 media practitioners from China's neighboring countries visited Beijing Economic Technological Development Area (E-Town),making stops at the Innovation Operation Center of the High-Level Autonomous Driving Demonstration Zone and ZGC E-TOWN International Robotics Industrial Park.During the visit,the foreign media representatives learned about individual technological achievements and gained insight into a comprehensive innovation ecosystem covering product research and development,industrial cultivation,and urban application.
摘要A Dutch-born video creator uses his influential social media presence to share authentic stories of Chinese life with European audiences.SANDER Kole,a video creator born in the Netherlands,has become a superstar influencer on social media,connecting Chinese and European cultures.With almost 20 million followers on platforms like TikTok,YouTube,Douyin,Xiaohongshu,and WeChat,he uses short videos to show European audiences real life stories in China.
摘要This paper develops a conceptual framework in which fan engagement is theorised as a partial mediator of the relationship between social media interaction and sports event brand loyalty.Five propositions are advanced and stress-tested against three distinct empirical regimes:ongoing league competitions,recurring club tournaments,and quadrennial mega-events.The framework departs from the dominant treatment of engagement as the sole psychological mechanism by explicitly acknowledging competing mediators,and by introducing a moderated-mediation extension in which platform affordances and community management practices condition the strength of the engagement pathway.Comparative data across the NBA,the UEFA Champions League,the FIFA World Cup Qatar 2022,and the Paris 2024 Olympic Games reveal that aggregate engagement volume varies by more than two orders of magnitude across regimes,and that the proposed framework applies with greatest force to ongoing league contexts where fan identification is durable.The paper also examines whether the model,developed largely on Western data,retains explanatory power in the distinctive platform ecology of Chinese sports media.Cross-sectional evidence dominates the field but cannot adjudicate the endogeneity between engagement and loyalty;longitudinal and quasi-experimental designs are argued to be necessary next steps.Implications are drawn for theory,for managerial practice,and for the widespread industry preoccupation with follower counts as a proxy for brand strength.
基金the financialsupport provided by the Project of National Key Research and Development Program of China(2023YFA1507700,2024YFA1509902).
摘要The effective diffusion coefficient(EDC)is a fundamental parameter for characterizing gas transport in porous media.Structural damages within the pore network significantly affect the EDC due to the alterations in diffusion pathways.To advance the understanding of these effects,we introduce a novel,physics-based model that explicitly captures the complex morphology of damaged porous structures.Utilizing a generalized tree-like bifurcation network framework combined with Monte Carlo simulations,our approach models gas diffusion according to Fick's law,deriving a comprehensive expression for EDC as a function of critical geometric parameters:porosity,fractal dimension of pore space,surface roughness,connectivity,total branching level,branching angle,and pore damage extent.This methodology eschews empirical assumptions,relying solely on fundamental physical principles,thus ensuring high model fidelityand predictive robustness for complex porous systems.Validation against extensive experimental datasets demonstrates strong agreement,confirmingthe model's accuracy.Key findingsreveal that pore damage shifts the optimal diameter ratio(ODR)from 0.772 into a broader range of 0.788-0.876 under damage scenarios.Moreover,higher branching levels and smaller angles increase the sensitivity of EDC to diameter ratio variations.Tailored pore morphology,particularly in designing different diameter ratios for damaged versus undamaged zones,can significantlyenhance gas diffusion efficiency.These results offer a theoretical basis for designing damage-tolerant catalyst porous media during the lifecycle,improving diffusion efficiencyby 0.86%to 3.81%compared to traditional designs across three damage models.
基金the Open Foundation of Jiangxi Hydraulic Safety Engineering Technology Research Center(2022SKSG01)Natural Science Foundation of Jiangxi Province(20232BAB213074)+2 种基金Science and Technology Project of Jiangxi Province(2023KSG01008)Science and Technology Research Project of Jiangxi Provincial Department of Education(GJJ2200749)Science and Technology Project of the Department of Transportation of Jiangxi Province(2022H0025).
摘要In certain geological conditions,the electrical anisotropy characteristics of media are considered an important influencing factor.Ignoring their impact may lead to incorrect data interpretation.To address this,this paper develops a 3D fast forward algorithm for multi-frequency controlled-source electromagnetic(CSEM)anisotropic media based on model order reduction techniques,to understand the impact of electrical anisotropy characteristics on CSEM data.The paper derives the electric eld equations satised by CSEM under electrically anisotropic conductivity conditions,discretizes the equation set using unstructured vector nite elements,and combines the shift-and-inverse rational Krylov subspace algorithm to achieve the research of a 3D fast forward algorithm for multi-frequency CSEM in arbitrary electrically anisotropic media.A twodimensional electrically anisotropic geoelectric model is designed for algorithm testing,and the test results are compared with publicly available algorithms to verify the correctness of the developed program in this paper.To further analyze the algorithm's efciency and the impact of electrical anisotropy characteristics on CSEM data,a three-dimensional electrically anisotropic media model is constructed for numerical testing.The test results show that the developed algorithm in this paper can achieve fast forward modeling of multi-frequency CSEM,with an acceleration ratio of more than 10 times,and it is not aected by the number of frequency points.Additionally,the CSEM response of electrically anisotropic media shows signicant changes compared to isotropic media,and the single-branch apparent resistivity curves and contour maps can eectively identify the anisotropic principal axis direction.