期刊文献+
共找到3,216篇文章
< 1 2 161 >
每页显示 20 50 100
Extracellular BAG3 is elevated in early diffuse systemic sclerosis
1
作者 Paul Freedman Margot De Marco +4 位作者 Alessandra Rosati Liberato Marzullo Nicoletta Del Papa Maria Caterina Turco Steven O’Reilly 《Military Medical Research》 2026年第1期169-172,共4页
Dear Editor,Systemic sclerosis(SSc)is an autoimmune connective tissue disease in which there are vascular abnormalities,inflammation,and fibrosis[1].These three characteristics primarily affect the skin and lungs.Of a... Dear Editor,Systemic sclerosis(SSc)is an autoimmune connective tissue disease in which there are vascular abnormalities,inflammation,and fibrosis[1].These three characteristics primarily affect the skin and lungs.Of all the autoimmune rheumatic diseases,SSc has the highest all-cause mortality rate,and the underlying pathogenic processes that mediate disease are still obscure,with wide diff erences in presentation and progression[2,3]. 展开更多
关键词 Systemic sclerosis Bcl-2 associated athanogene-3(BAG3) CYTOKINE Lung disease Stimulator of interferon genes(STING)
原文传递
Catalytic electrode comprising a gas diffusion layer and bubble-involved mass transfer in anion exchange membrane water electrolysis:A critical review and perspectives 被引量:1
2
作者 Ning Yang Haonan Li +6 位作者 Xiao Lin Stella Georgiadou Liang Hong Zhaohua Wang Fan He Zhifu Qi Wen-Feng Lin 《Journal of Energy Chemistry》 2025年第6期669-701,I0014,共34页
Production of green hydrogen through water electrolysis powered by renewable energy sources has garnered increasing attention as an attractive strategy for the storage of clean and sustainable energy.Among various ele... Production of green hydrogen through water electrolysis powered by renewable energy sources has garnered increasing attention as an attractive strategy for the storage of clean and sustainable energy.Among various electrolysis technologies,the emerging anion exchange membrane water electrolyser(AEMWE)exhibits the most potential for green hydrogen production,offering a potentially costeffective and sustainable approach that combines the advantages of high current density and fast start from proton exchange membrane water electrolyser(PEMWE)and low-cost catalyst from traditional alkaline water electrolyser(AWE)systems.Due to its relatively recent emergence over the past decade,a series of efforts are dedicated to improving the electrochemical reaction performance to accelerate the development and commercialization of AEMWE technology.A catalytic electrode comprising a gas diffusion layer(GDL)and a catalyst layer(CL)is usually called a gas diffusion electrode(GDE)that serves as a fundamental component within AEMWE,and also plays a core role in enhancing mass transfer during the electrolysis process.Inside the GDEs,bubbles nucleate and grow within the CL and then are transported through the GDL before eventually detaching to enter the electrolyte in the flow field.The transfer processes of water,gas bubbles,charges,and ions are intricately influenced by bubbles.This phenomenon is referred to as bubble-associated mass transfer.Like water management in fuel cells,effective bubble management is crucial in electrolysers,as its failure can result in various overpotential losses,such as activation losses,ohmic losses,and mass transfer losses,ultimately degrading the AEMWE performance.Despite significant advancements in the development of new materials and techniques in AEMWE,there is an urgent need for a comprehensive discussion focused on GDEs,with a particular emphasis on bubbleassociated mass transfer phenomena.This review aims to highlight recent findings regarding mass transfer in GDEs,particularly the impacts of bubble accumulation;and presents the latest advancements in designing CLs and GDLs to mitigate bubble-related issues.It is worth noting that a series of innovative bubble-free-GDE designs for water electrolysis are also emphasized in this review.This review is expected to be a valuable reference for gaining a deeper understanding of bubble-related mass transfer,especially the complex bubble behavior associated with GDEs,and for developing innovative practical strategies to advance AEMWE for green hydrogen production. 展开更多
关键词 Green hydrogen production Water electrolysis Catalytic electrode Gas diffusion layer Bubble-involved mass transfer Electrocatalytic interface designing strategy
在线阅读 下载PDF
Engendered nanoparticles for treatment of brain tumors
3
作者 SOROUSH SOLEYMANI MOHAMMAD DOROUDIAN +5 位作者 MAHDIEH SOEZI ALI BELADI KIARASH ASGARI ASO MOBARAKSHAHI ARYANA AGHAEIPOUR RONAN MACLOUGHLIN 《Oncology Research》 SCIE 2025年第1期15-26,共12页
Brain metastasis and primary glioblastoma multiforme represent the most common and lethal malignant brain tumors.Its median survival time is typically less than a year after diagnosis.One of the major challenges in tr... Brain metastasis and primary glioblastoma multiforme represent the most common and lethal malignant brain tumors.Its median survival time is typically less than a year after diagnosis.One of the major challenges in treating these cancers is the efficiency of the transport of drugs to the central nervous system.The blood-brain barrier is cooperating with advanced stages of malignancy.The blood-brain barrier poses a significant challenge to delivering systemic medications to brain tumors.Nanodrug delivery systems have emerged as promising tools for effectively crossing this barrier.Additionally,the development of smart nanoparticles brings new hope for cancer diagnosis and treatment.These nanoparticles improve drug delivery efficiency,allowing for the creation of targeted and stimuli-responsive delivery methods.This review highlights recent advancements in nanoparticle and smart nanoparticle technologies for brain cancer treatment,exploring the range of nanoparticles under development,their applications,targeting strategies,and the latest progress in enhancing transport across the blood-brain barrier.It also addresses the ongoing challenges and potential benefits of these innovative approaches. 展开更多
关键词 NANOPARTICLES Smart nanoparticles Stimuli responsive nanoparticles Targeted nanoparticles Blood-brain barrier(BBB) Brain cancer
暂未订购
Molecular and Cellular Mechanisms of Neutrophil Extracellular Traps in Cardiovascular Diseases:From NET Formation to Mechanistic Therapeutic Targeting
4
作者 Rasit Dinc Nurittin Ardic 《BIOCELL》 2026年第1期81-106,共26页
Neutrophil extracellular traps(NETs)have emerged as key mediators of cardiovascular diseases(CVDs),linking innate immune activation to vascular injury,thrombosis,and maladaptive remodeling.This review synthesizes rece... Neutrophil extracellular traps(NETs)have emerged as key mediators of cardiovascular diseases(CVDs),linking innate immune activation to vascular injury,thrombosis,and maladaptive remodeling.This review synthesizes recent insights into the molecular and cellular pathways driving NET formation,including post-translational modifications,metabolic reprogramming,inflammasome signaling,and autophagy.It highlights the role of NETs in atherosclerosis,thrombosis,myocardial ischemia-reperfusion injury,and hypertension,emphasizing common control points such as peptidylarginine deiminase 4(PAD4)-dependent histone citrullination and nicotinamide adenine dinucleotide phosphate oxidases 2(NOX2)-mediated oxidative stress.Mechanistic interpretation of circulating biomarkers,includingmyeloperoxidase(MPO)-DNA complexes,citrullinated histoneH3,and cell-free DNA,provides a translational bridge between NET biology and patient stratification.Therapeutic strategies targeting NETs are examined through three main approaches:inhibition of NET initiation,enhancement of chromatin clearance,and neutralization of toxic extracellular components,with attention to both established and emerging interventions.In contrast to previous reviews,this study highlights the novelty of a mechano-therapeutic framework by providing a mechanistic roadmap linking NET formation pathways to therapeutic targeting in cardiovascular disease.Moving forward,integrating mechanistic information with biomarker discovery,precision profiling,and targeted therapies offers innovative strategies to reduce vascular inflammation and improve outcomes in cardiovascular disease. 展开更多
关键词 Neutrophil extracellular traps(NETs) cardiovascular disease peptidylarginine deiminase 4(PAD4) THROMBOSIS mechano-therapeutic targeting
暂未订购
Toe-out landing reduces anterior talofibular ligament strain while maintains calcaneofibular ligament strain in people with chronic ankle instability
5
作者 Xiaoxue Zhu Feng Wei +4 位作者 Simin Li Teng Zhang Peixin Shen Daniel TP Fong Qipeng Song 《Journal of Sport and Health Science》 2025年第5期166-174,共9页
Background:The anterior talofibular ligament(ATFL)and the calcaneofibular ligament(CFL)are vulnerable to be torn or ruptured during lateral ankle sprain(LAS),especially in people with chronic ankle instability(CAI).Th... Background:The anterior talofibular ligament(ATFL)and the calcaneofibular ligament(CFL)are vulnerable to be torn or ruptured during lateral ankle sprain(LAS),especially in people with chronic ankle instability(CAI).This study aims to determine whether landing with a larger toe-out angle would influence ATFL and CFL strains in people with CAI,aiming to contribute to the development of effective landing strategies to reduce LAS risk.Methods:Thirty participants with CAI(22 males and 8 females,age:21.2±1.2 years,height:176.9±9.0 cm,body mass:70.6±12.1 kg,mean±SD)were recruited.Each participant landed on a specialized trap-door device with their unaffected limbs on a support platform and their affected limbs on a movable platform,which could be flipped 24°inward and 15°forward to mimic LAS conditions.Two landing conditions were tested—i.e.,natural landing(NL,with natural toe-out angle at landing)and toe-out landing(TL,with toe-out angle increased to over 150%of that under the NL conditions).Kinematic data were captured using a 12-camera motion analysis system,and ATFL and CFL strains were calculated using a 3D rigid-body foot model.Paired sample t tests and Pearson's correlations were used to analyze data.Results:Compared to NL conditions,ATFL strain decreased(p<0.001,d=2.42)while CFL strain remained unchanged(p=0.229,d=0.09)under TL conditions.The toe-out angle was negatively and strongly correlated with ATFL strain(r=-0.743,p<0.001)but not with CFL strain(r=0.153,p=0.251).Compared to NL conditions,participants exhibit a lower ankle inversion angle(p<0.001,d=0.494),a higher plantarflexion angle(p<0.001,d=1.101),and no significant difference in external rotation angle(p=0.571,d=0.133)under TL conditions.Conclusion:Toe-out landing may reduce ATFL strain while maintaining CFL strain in people with CAI,thereby reducing the risk of LAS. 展开更多
关键词 Ankle ligament injury Chronic ankle instability Finite element analysis
在线阅读 下载PDF
Heat flow as a catalyst for radiogenic helium release in the East Africa Rift System
6
作者 Ernest Mulaya Jon Gluyas +2 位作者 Ken McCaff rey David Byrne Chris Ballentine 《Acta Geochimica》 2026年第1期65-85,共21页
The Rukwa Rift section of the East Africa Rift System presents a type setting for radiogenic helium accumulation in a petroleum free basin.As a prerequisite for accumulation,a considerable high heat flow anomaly is re... The Rukwa Rift section of the East Africa Rift System presents a type setting for radiogenic helium accumulation in a petroleum free basin.As a prerequisite for accumulation,a considerable high heat flow anomaly is required from tectonothermal events to drive the release and circulation of radiogenic helium in the continental crust.Here we apply statistical analysis on geochemical data observed in thermal springs and recorded heat flow to account for crustal helium mass balance for each tectonothermal event in the region.Our results demonstrate anomalously high heat flow~64-99 mW/m^(2) with a consistent trend of helium isotopic ratio and fluid chemistry in the Rukwa Rift.Mass balance calculation show that the whole crustal volume underlying the East Africa Helium Pool(EAHP)has a capability of producing radiogenic helium of about 9.9×10^(6) mol/yr(22×10^(-6) mol 4He/m^(2) yr)while the total radiogenic helium flux ranges between~2.39×10^(6) mol/yr and~2.68×10^(9) mol/yr.The Tanzania Craton contributes largely to radiogenic helium releasing up to 50% of the total capacity in the region.The total ^(4)He emission in the Rukwa Rift Basin is about 4.45×10^(5)-5.01×10^(8) mol/yr which is thus equivalent to 19%-21% of the total production capacity in the region.These results imply that the helium accumulation in the EAHP would have started as early as Paleoproterozoic(2.349 Ga).These results provide a qualitative and quantitative insight to assess both helium and geothermal potentiality in the region. 展开更多
关键词 Radiogenic helium Rukwa Rift Heat flow Helium potential Helium concentration
在线阅读 下载PDF
Erratum:“Enhanced ion acceleration using the high-energy petawatt PETAL laser”[Matter Radiat.Extremes 6,056901(2021)]
7
作者 D.Raffestin L.Lecherbourg +16 位作者 I.Lantuéjoul B.Vauzour P.E.Masson-Laborde X.Davoine N.Blanchot J.L.Dubois X.Vaisseau E.d’Humières L.Gremillet A.Duval Ch.Reverdin B.Rosse G.Boutoux J.E.Ducret Ch.Rousseaux V.Tikhonchuk D.Batani 《Matter and Radiation at Extremes》 2025年第2期99-101,共3页
The article contains an error regarding the electron spectra displayed in Figs.4 and 5 and the data extracted from these spectra.The measurements were made with the SESAME magnetic spectrometer,the working principle o... The article contains an error regarding the electron spectra displayed in Figs.4 and 5 and the data extracted from these spectra.The measurements were made with the SESAME magnetic spectrometer,the working principle of which is recalled in Fig.1.Specifically,a magnetic dipole is used to separate charged particles(electrons in the case of this experiment)depending on their energy,charge and mass.The deflected particles then hit an imaging plate(IP)and deposit energy in its sensitive layer.The kinetic energy of the particles can be evaluated from their impact position on the IP and their number can be inferred from the local energy deposition. 展开更多
关键词 petawatt laser kinetic energy magnetic spectrometer sesame magnetic spectrometerthe deposit energy magnetic dipole ion acceleration separate charged particles electrons
在线阅读 下载PDF
Citric Acid-Enhanced Electroremediation of Toxic Metal-Contaminated Dredged Sediments:Effect of Open/Closed Orifice Condition,Electric Potential and Surfactant
8
作者 Yue SONG Ahmed BENAMAR +1 位作者 Salim MEZAZIGH Huaqing WANG 《Pedosphere》 SCIE CAS CSCD 2018年第1期35-43,共9页
Citric acid(CA),a widely used eco-friendly electrolyte,can be employed as an agent for enhancing toxic metal(TM)removal from contaminated dredged sediment using electrokinetic(EK)technology.In this study,dredged harbo... Citric acid(CA),a widely used eco-friendly electrolyte,can be employed as an agent for enhancing toxic metal(TM)removal from contaminated dredged sediment using electrokinetic(EK)technology.In this study,dredged harbor sediments co-contaminated by TMs were subjected to enhanced EK treatment using a mixture of chelating agent(CA)and surfactant as an additive in the processing fluids.Several control conditions that may influence the efficiency of TM removal were tested,including open/closed sediment chamber orifices,electric potential gradients(0.5,1.0,and 1.5 V cm^(-1)),and electrolyte surfactant.Tween 20(4 mmol L-1)was used as a surfactant within the electrolyte to investigate the extent of TM removal in sediment with high organic matter content.The results showed that an open orifice led to a greater electro-osmotic flow(EOF)with moderate TM removal.In contrast,a closed orifice with a nonionic surfactant electrolyte allowed the highest removal of TMs from the matrix.Moreover,increasing the electric potential gradient led to a higher EOF under the open orifice condition,but no significant increase in TM removal was observed owing to a higher accumulation of TMs in the middle of the matrix,caused by the opposite direction of EOF and electro-migration of metal-citrate complexes. 展开更多
关键词 electric potential electrokinetic remediation electro-migration electro-osmotic flow electro-osmotic permeability metal-citrate complex
原文传递
Evaluation of Fusarium Graminearum Growth and Deoxynivalenol Content in Susceptible and Tolerant Varieties of Triticum Aestivum
9
作者 Chiara Nobili Massimo Reverberi +5 位作者 Alessandra Ricelli Valeria Scala Gabriella Aureli Flavia Pinzari Anna Adele Fabbri Corrado Fanelli 《Journal of Life Sciences》 2011年第2期81-90,共10页
The aim of this work was to verify if the wheat susceptibility/tolerance phenotype to Fusarium head blight (FHB) into the field could be related to the ability of the re-activated seeds to hamper deoxynivalenol (DO... The aim of this work was to verify if the wheat susceptibility/tolerance phenotype to Fusarium head blight (FHB) into the field could be related to the ability of the re-activated seeds to hamper deoxynivalenol (DON) synthesis by Fusarium graminearum into non optimal (i.e. high humidity) storage conditions. On this purpose, two Fusariurn graminearum strains, Fg126 and Fg8308, were separately inoculated on active but not germinating kernels of Triticum aestivum L. cv "Sagittario" (FHB-susceptible) and cv "Blasco" (FHB-tolerant), The growth of the fungal strains on wheat kernels was monitored from 0 to 15 days post inoculation through a quantitative SYBR green real-time PCR, as well as ergosterol content through HPLC for comparison. DON biosynthesis into the contaminated wheat seeds was quantified by HPLC method in the same time intervals as above. Significant differences in the ability to grow and synthesize DON, acetylated and glucosylated forms, emerged between the strains also in relation to the wheat variety on which the pathogen developed. The results obtained indicated that the wheat variety which from the epidemiological studies carried out into the field is FHB-tolerant, i.e. Blasco, resulted as the more efficient in hampering DON synthesis in both F. graminearum strains. Thus, this preliminary study could represent a contribution to find out less time consuming methods for screening the wheat varieties tolerant to DON accumulation in non optimal storage conditions. 展开更多
关键词 Triticum aestiwtm Fusarium graminearum FHB-susceptible FHB-tolerant deoxynivalenol (DON) 15-acetyldeoxynivalenol (15-ADON) 3-acetyldeoxynivalenol (3-ADON) 3-glucosyldeoxynivalenol (3-GDON).
在线阅读 下载PDF
Corrigendum to"Topographic complexity drives trait composition as well as functional and phylogenetic diversity of understory plant communities in microrefugia:New insights for conservation"[Forest Ecosyst.12(2025)100278]
10
作者 Kata Frei Anna E-Vojtkó +6 位作者 Csaba Tölgyesi András Vojtkó Tünde Farkas LászlóErdős Gábor Li Ádám Lőrincz Zoltán Bátori 《Forest Ecosystems》 2025年第3期536-538,共3页
The authors regret that an error occurred during the preparation of their article:One of the official databases,which was used for functional trait collections,contained an incorrect term–'chametophytes'–for... The authors regret that an error occurred during the preparation of their article:One of the official databases,which was used for functional trait collections,contained an incorrect term–'chametophytes'–for the life form category'chamaephytes'.Unfortunately,this incorrect term was used throughout the article following the nomenclature of this official database:in one instance in the main text,in Fig.3 and its caption,in Fig.5,and in two instances in the supplementary material. 展开更多
关键词 functional diversity functional trait collectionscontained understory plant communities supplementary material phylogenetic diversity CORRIGENDUM topographic complexity official database
在线阅读 下载PDF
Experimental Study of Selective Batch Bio-Adsorption for the Removal of Dyes in Industrial Textile Effluents 被引量:3
11
作者 Zakaria Laggoun Amel Khalfaoui +3 位作者 Kerroum Derbal Amira Fadia Ghomrani Abderrezzaq Benalia Antonio Pizzi 《Journal of Renewable Materials》 2025年第1期127-146,共20页
This research aims to study the bio-adsorption process of two dyes,Cibacron Green H3G(CG-H3G)and Terasil Red(TR),in a single system and to bring them closer to the industrial textile discharge by a binary mixture of t... This research aims to study the bio-adsorption process of two dyes,Cibacron Green H3G(CG-H3G)and Terasil Red(TR),in a single system and to bring them closer to the industrial textile discharge by a binary mixture of two dyes(TR+CG-H3G).The Cockle Shell(CS)was used as a natural bio-adsorbent.The characterizations of CS were investigated by Fourier transform infrared(FTIR),X-ray diffraction(XRD),scanning electron microscopy(SEM),energy-dispersive X-ray spectroscopy(EDX)and Brunauer–Emmett–Teller(BET).The adsorption potential of Cockle Shells was tested in two cases(single and binary system)and determined by:contact time(0–60 min),bio-adsorption dose(3–15 g/L),initial concentration(10–300 mg/L),temperature(22–61°C)and pH solution(2–12).The study of bio-adsorption(equilibrium and kinetics)was conducted at 22°C.The kinetic studies demon-strated that a pseudo-second-order adsorption mechanism had a good correlation coefficient(R2≥0.999).The Langmuir isotherm modeling provided a well-defined description of TR and CG-H3G bio-adsorption on cockle shells,exhibiting maximum capacities of 29.41 and 3.69 mg/g respectively at 22°C.The thermodynamic study shows that the reaction between the TR,CG-H3G dyes molecules and the bio-adsorbent is exothermic,spontaneous in the range of 22–31°C with the aleatory character decrease at the solid-liquid interface.The study of selectivity in single and binary systems has been performed under optimal operating conditions using the industrial textile rejection pH(pH=6.04).CG-H3G dye is found to have a higher selectivity than TR in single(0–60 min)and binary systems with a range of 6–45 min,as shown by the selectivity measurement.It was discovered that CS has the capability to remove both CG-H3G and TR dyes in both simple and binary systems,making it a superior bio-adsorbent. 展开更多
关键词 Cockle shells bio-adsorption binary system dyes cibacron green terasil red selectivity
在线阅读 下载PDF
Achieving ballistic impact resistance in a lightweight Mg-Gd-Y-Zn alloy against a 7.62 mm steel core projectile for anti-armor applications:A microstructural approach
12
作者 Abdul Malik Sehreish Abrar +2 位作者 Faisal Nazeer Umer Masood Chaudry Zheng Chen 《Journal of Materials Science & Technology》 2025年第27期32-47,共16页
Achieving ballistic impact resistance in a lightweight magnesium(Mg)alloy is a requirement of the aerospace and military industries.However,Mg alloy has poor ballistic impact resistance,mainly attributed to its soft n... Achieving ballistic impact resistance in a lightweight magnesium(Mg)alloy is a requirement of the aerospace and military industries.However,Mg alloy has poor ballistic impact resistance,mainly attributed to its soft nature and hexagonal close-packed(HCP)crystal structure.In the current study,we reported that the die-casted Mg-Gd-Y-Zn(WEZ)alloy displayed high ballistic impact resistance against a 7.62 mm steel core projectile under both low and high-velocity impact.Most specifically,a perfect ballistic impact resistance is achieved at velocities of 344 and 605 m s^(-1),having a depth of penetration of~12 and~25 mm,respectively.In addition,for a very high velocity of 810 m s^(-1),the projectile was impeded in the sheet but at the cost of a small hole/scab on the rear face.The potential reason is the“fibrous microstructure”,comprised of profuse blocky type long period stacking order(LPSOs),rod type LPSOs,lamellar LPSOs,and some rare earth(RE)enriched precipitates.These“microstructure features”act like a fiber reinforced α-Mg and play a decisive role in achieving high strength at super elevated temperature compression(500℃)under a high strain rate(~4000 s^(-1)),even much higher compared to 4000 s^(-1) at room temperature.As a result,this characteristic of WEZ Mg alloy leads to a high absorption ca-pacity at elevated temperatures(90.83~MJ m^(-3)).This high absorption capacity due to high strength at elevated temperatures,fibrous microstructure,and hardness(~80 HV)offered high resistance to impact and shock wave propagation.Consequently,the projectile experienced a high resistance against perforation,and therefore,ballistic impact resistance was achieved.Last but not least,the post-deformation features also help in understanding the stress mitigation of WEZ Mg alloy during ballistic impact,which can be advantageous while designing Mg alloys as a ballistic impact-resistant material. 展开更多
关键词 WEZ Mg alloy Ballistic impact resistance Hardness 7.62 mm projectile Projectile velocity Stress mitigation
原文传递
An investigation of silver-nanoparticle-modified TiO_(2)substrates for photocatalytic oxidation in wastewater treatment
13
作者 Jackson Joseph Arulsamy Joy Prabu Henry Prunier +4 位作者 Felix Sahayaraj Arockiasamy Johnson Irudhayaraj Ebenezer Thaninayagam Gopi Rajakannu Ravi Snowlin Venice Selvam 《Nanotechnology and Precision Engineering》 2025年第3期18-28,共11页
This research aims to explore the decoration of TiO_(2) substrates with silver nanoparticles as a means of enhancing the photocatalytic oxidation of organic compounds.The results show that decorated TiO_(2) substrates... This research aims to explore the decoration of TiO_(2) substrates with silver nanoparticles as a means of enhancing the photocatalytic oxidation of organic compounds.The results show that decorated TiO_(2) substrates exhibit significantly higher photocatalytic activity in sunlight than undecorated substrates.Morphological analysis is performed,followed by optical and structural characterizations.Scanning electron microscopy analysis of the TiO_(2) reveals many nanotubular structures with particle sizes of∼134.4,148.8,and 132.7 nm at random locations.TiO_(2) is also found to have an absorbance range of 397.6 nm,from which it is known that the photocatalyst reacts in the presence of an ultraviolet source.From the Miller indices of the x-ray diffraction peaks,the preferred crystal orientation is found to be associated with a face-centered cubic structure with a crystallite size of 3.76 nm.Using these promising results,photocatalytic analysis is performed,revealing good degradation characteristics.This investigation reveals that TiO_(2) substrates coated with Ag nanoparticles possess significant potential for application in the photocatalytic oxidation of methylene blue dye,which is a crucial step toward establishing a cleaner environment. 展开更多
关键词 Photocatalytic oxidation PHOTOCATALYST TiO_(2)substrates Ag nanoparticles Surface-enhanced photocatalysis Methylene blue(MB)dye
在线阅读 下载PDF
The impacts of variable nonlocal,length-scale factors and surface energy on hygro-thermo-mechanical vibration and buckling behaviors of viscoelastic FGP nanosheet on viscoelastic medium
14
作者 Hong Hieu Le Van Ke Tran +1 位作者 Nhan Thinh Hoang Nguyen Ngoc My Huong 《Acta Mechanica Sinica》 2025年第5期13-32,共20页
The main goal of this paper is to present the free vibration and buckling of viscoelastic functionally graded porous(FGP)nanosheet based on nonlocal strain gradient(NSGT)and surface elasticity theories.The nanosheets ... The main goal of this paper is to present the free vibration and buckling of viscoelastic functionally graded porous(FGP)nanosheet based on nonlocal strain gradient(NSGT)and surface elasticity theories.The nanosheets are placed on a visco-Pasternak medium in a hygro-temperature environment with nonlinear rules.The viscoelastic material characteristics of nanosheets are based on Kelvin’s model.The unique point of this study is to consider the change of nonlocal and length-scale coefficients according to thickness,similar to the laws of the material properties.The Galerkin approach based on the Kirchhoff-love plate theory is applied to determine the natural frequency and critical buckling load of the viscoelastic FGP nanosheet with various boundary conditions.The accuracy of the proposed method is verified through reliable publications.The outcome of this study highlights the significant effects of the nonlocal and length-scale parameters on the vibration and buckling behaviors of viscoelastic FGP nanosheets. 展开更多
关键词 Nonlocal strain gradient hypothesis Surface elasticity Various boundary conditions Length scale Variable nonlocal coefficient
原文传递
Optimization of Multiplex PCR and Multiplex Gel Electrophoresis in Sunflower SSR Analysis Using Infrared Fluorescence and Tailed Primers 被引量:3
15
作者 张潞生 Vanessa BECQUET +1 位作者 李绍华 David ZHANG 《Acta Botanica Sinica》 CSCD 2003年第11期1312-1318,共7页
In an effort to simplify the procedure and to reduce the cost of fluorescence SSR analysis, the conditions of the multiplex PCR and the multiplex gel electrophoresis were optimized in the genetic analysis of sunflower... In an effort to simplify the procedure and to reduce the cost of fluorescence SSR analysis, the conditions of the multiplex PCR and the multiplex gel electrophoresis were optimized in the genetic analysis of sunflower (Helianthus annuus L.) inbred lines. Results indicated that factors for a successful multiplex PCR assay were related to the cycling touchdown annealing temperature, the balance of primer concentration at the various loci, the concentration of PCR buffer and the Taq DNA polymerase. Based on the optimization, a tailed primer strategy was outlined, and the effective ways were proposed to overcome the troubleshootings commonly encountered in the multiplex PCR and the multiplex gel electrophoresis. 展开更多
关键词 simple sequence repeat (SSR) tailed primer multiplex PCR multiplex gel electrophoresis SUNFLOWER
在线阅读 下载PDF
Impact of targeting the platelet-activating factor and its receptor in cancer treatment
16
作者 Kimya Qaderi Arvin Shahmoradi +1 位作者 Anita Thyagarajan Ravi P.Sahu 《Military Medical Research》 2025年第10期1617-1644,共28页
The lipid mediator platelet-activating factor(PAF)and its receptor(PAFR)signaling play critical roles in a wide range of physiological and pathophysiological conditions,including cancer growth and metastasis.The abili... The lipid mediator platelet-activating factor(PAF)and its receptor(PAFR)signaling play critical roles in a wide range of physiological and pathophysiological conditions,including cancer growth and metastasis.The ability of PAFR to interact with other oncogenic signaling cascades makes it a promising target for cancer treatment.Moreover,numerous natural and synthetic compounds,characterized by diverse pharmacological activities such as anti-inflammatory and anti-tumor effects,have been explored for their potential as PAF and PAFR antagonists.In this review,we provide comprehensive evidence regarding the PAF/PAFR signaling pathway,highlighting the effectiveness of various classes of PAF and PAFR inhibitors and antagonists across multiple cancer models.Notably,the synergistic effects of PAF and PAFR antagonists in enhancing the efficacy of chemotherapy and radiation therapy in several experimental cancer models are also discussed.Overall,the synthesis of literature review indicates that targeting the PAF/PAFR axis represents a promising approach for cancer treatment and also exerts synergy with chemotherapy and radiation therapy. 展开更多
关键词 Platelet-activating factor(PAF) Platelet-activating factor-receptor(PAFR) ANTAGONISTS INHIBITORS Cancer Cell signaling pathways Radiation therapy CHEMOTHERAPY
原文传递
Progress of Machine Learning in Molecular Crystal Design and Crystallization Development
17
作者 Shengzhe Jia Yiming Ma +4 位作者 Yuechao Cao Zhenguo Gao Sohrab Rohani Junbo Gong Jingkang Wang 《Engineering》 2025年第10期139-154,共16页
Machine learning(ML)can optimize the research paradigm and shorten the time from discovery to application of novel functional materials,pharmaceuticals,and fine chemicals.Besides supporting material and drug design,ML... Machine learning(ML)can optimize the research paradigm and shorten the time from discovery to application of novel functional materials,pharmaceuticals,and fine chemicals.Besides supporting material and drug design,ML is a potentially valuable tool for predictive modeling and process optimization.Herein,we first review the recent progress in data-driven ML for molecular crystal design,including property and structure predictions.ML can accelerate the development of the solvates,co-crystals,and colloidal nanocrystals,and improve the efficiency of crystal design.Next,this review summarizes ML algorithms for crystallization behavior prediction and process regulation.ML models support drug solubility prediction,particle agglomeration prediction,and spherical crystal design.ML-based in situ image processing can extract particle information and recognize crystal products.The application scenarios of ML algorithms utilized in crystallization processes and two control strategies based on supersaturation regulation and image processing are also presented.Finally,emerging techniques and the outlook of ML in drug molecular design and industrial crystallization processes are outlined. 展开更多
关键词 Machine learning Artificial intelligence Molecular crystal design Process optimization Crystallization control
在线阅读 下载PDF
High-thermal free vibration analysis of functionally graded microplates using a new finite element formulation based on TSDT and MSCT
18
作者 Huu Trong Dang Nhan Thinh Hoang +2 位作者 Quoc Hoa Pham Trung Thanh Tran Huy Gia Luong 《Defence Technology(防务技术)》 2025年第2期131-149,共19页
Recent advancements in additive manufacturing(AM)have revolutionized the design and production of complex engineering microstructures.Despite these advancements,their mathematical modeling and computational analysis r... Recent advancements in additive manufacturing(AM)have revolutionized the design and production of complex engineering microstructures.Despite these advancements,their mathematical modeling and computational analysis remain significant challenges.This research aims to develop an effective computational method for analyzing the free vibration of functionally graded(FG)microplates under high temperatures while resting on a Pasternak foundation(PF).This formulation leverages a new thirdorder shear deformation theory(new TSDT)for improved accuracy without requiring shear correction factors.Additionally,the modified couple stress theory(MCST)is incorporated to account for sizedependent effects in microplates.The PF is characterized by two parameters including spring stiffness(k_(w))and shear layer stiffness(k_(s)).To validate the proposed method,the results obtained are compared with those of the existing literature.Furthermore,numerical examples explore the influence of various factors on the high-temperature free vibration of FG microplates.These factors include the length scale parameter(l),geometric dimensions,material properties,and the presence of the elastic foundation.The findings significantly enhance our comprehension of the free vibration of FG microplates in high thermal environments.In addition,the findings significantly enhance our comprehension of the free vibration of FG microplates in high thermal environments.In addition,the results of this research will have great potential in military and defense applications such as components of submarines,fighter aircraft,and missiles. 展开更多
关键词 Microplates Functionally graded material Finite element method Modified couple stress theory New TSDT High-thermal free vibration Pasternak foundation
在线阅读 下载PDF
Genomic evolution and diversity in Botryosphaeriales:insights from pan‑genomic and population genetic analyses of representative species
19
作者 Zong-Lin Deng Asha J.Dissanayake +9 位作者 Jin-Tao Zhu Na Wu Jiao Deng Hong-Zhi Du Wen-Li Li Yu-Hang Lu Xu Tang Jianping Xu Yong Zhang Jian-Kui Liu 《Fungal Diversity》 2025年第5期1-18,共18页
The fungal order Botryosphaeriales includes numerous ecologically and economically important plant-associated taxa,yet its genomic diversity and evolutionary mechanisms remain poorly understood.Here,we present high-qu... The fungal order Botryosphaeriales includes numerous ecologically and economically important plant-associated taxa,yet its genomic diversity and evolutionary mechanisms remain poorly understood.Here,we present high-quality de novo genome assemblies for three representative species—Botryosphaeria dothidea,Neofusicoccum parvum,and Phyllosticta capitalensis—and perform integrative analyses using comparative genomics,population genetics,and pan-genome frameworks.Pathogenic species(B.dothidea and N.parvum)exhibit significant expansions in gene families related to membrane transport and metabolism,suggesting enhanced adaptability and virulence potential.Selective sweep analyses highlight population-level divergence in metabolic and stress-response pathways,reflecting natural selection in host and environmental adaptation.Cross-species pan-genome comparisons of six Phyllosticta species reveal a conserved core genome,dynamic gene family turnover,and extensive horizontal gene transfer from bacterial,and archaeal sources—potentially driving ecological diversification.Furthermore,effector proteins display striking domain variation across genera,particularly in regions associated with host cell wall targeting,indicating convergent strategies for host adaptation.Together,these findings provide comprehensive insights into the genomic evolution,adaptation,and virulence mechanisms of Botryosphaeriales fungi,laying a foundation for future studies on plant–fungal interactions. 展开更多
关键词 Botryosphaeriales Fungal virulence and genome evolution Horizontal gene transfer Host adaptation Pangenome analysis Population genomics
原文传递
Recent Advances of Electrocatalysts and Electrodes for Direct Formic Acid Fuel Cells:from Nano to Meter Scale Challenges
20
作者 Yang Li Ming-Shui Yao +1 位作者 Yanping He Shangfeng Du 《Nano-Micro Letters》 2025年第6期482-531,共50页
Direct formic acid fuel cells are promising energy devices with advantages of low working temperature and high safety in fuel storage and transport.They have been expected to be a future power source for portable elec... Direct formic acid fuel cells are promising energy devices with advantages of low working temperature and high safety in fuel storage and transport.They have been expected to be a future power source for portable electronic devices.The technology has been developed rapidly to overcome the high cost and low power performance that hinder its practical application,which mainly originated from the slow reaction kinetics of the formic acid oxidation and complex mass transfer within the fuel cell electrodes.Here,we provide a comprehensive review of the progress around this technology,in particular for addressing multiscale challenges from catalytic mechanism understanding at the atomic scale,to catalyst design at the nanoscale,electrode structure at the micro scale and design at the millimeter scale,and finally to device fabrication at the meter scale.The gap between the highly active electrocatalysts and the poor electrode performance in practical devices is highlighted.Finally,perspectives and opportunities are proposed to potentially bridge this gap for further development of this technology. 展开更多
关键词 Direct formic acid fuel cell ELECTROCATALYST ELECTRODE Formic acid oxidation Mass transfer
在线阅读 下载PDF
上一页 1 2 161 下一页 到第
使用帮助 返回顶部