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Secondary thrombotic thrombocytopenic purpura following severe infection:a case report 认领 引用
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作者 Ni Yang Longfei Li Longfei Pan 《World Journal of Emergency Medicine》 SCIE CAS CSCD 2026年第4期388-390,共3页
Thrombotic thrombocytopenic purpura(TTP) is a rare hematological disorder classically characterized by a triad of symptoms: thrombocytopenia, microangiopathic hemolytic anemia, and neurological impairment. The presenc... Thrombotic thrombocytopenic purpura(TTP) is a rare hematological disorder classically characterized by a triad of symptoms: thrombocytopenia, microangiopathic hemolytic anemia, and neurological impairment. The presence of fever and renal injury, together with the triad, constitute the less common but classic pentad. Secondary TTPs, particularly infection-associated TTPs, are even rarer.[1] Herein, we report a case of secondary TTP following a severe infection. 展开更多
关键词 hematological disorder Thrombotic Thrombocytopenic Purpura Secondary Thrombotic Thrombocytopenic Purpura microangiopathic hemolytic anemia secondary ttp neurological impairment thrombotic thrombocytopenic purpura ttp Severe Infection
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Quantifying secondary organic aerosols and O3 formation drivers in North China:Comprehensive method combining random forest,positive matrix factorization,and observation-based model 认领 引用
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作者 Qi Huang Tianshuai Li +7 位作者 Tao Zhang Yuan Fang Feijie Gong Yifan Li Peng Xu Tianqi Zhang Lingxiao Yang Wenxing Wang 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2026年第2期1-12,共12页
Although the concentration of fine particulate matter(PM2.5)is reducing continuously,the proportion of secondary organic aerosols(SOA)in PM2.5 and the O3 levels are increasing.This is causing severe complex a... Although the concentration of fine particulate matter(PM2.5)is reducing continuously,the proportion of secondary organic aerosols(SOA)in PM2.5 and the O3 levels are increasing.This is causing severe complex atmospheric pollution in North China.It is essential to identify and quantify the driving factors of SOA and O3,including the various pollution sources and meteorological factors.PM2.5 and volatile organic compounds(VOCs)samples were collected simultaneously in three cities in Shandong Province during different pollution scenarios from 2021 to 2023.Then,the carbonaceous aerosol and 99 VOC species were analyzed.Random forest(RF)combined with positive matrix factorization and an observation-based model(OBM)were used to quantify the key drivers of SOA and O3.Aromatic hydrocarbons were the main contributors to secondary organic aerosol potential(74.3%-89.9%),whereas alkenes contributed the most to the ozone formation potential(27.0%-62.3%).The RF modeling identified temperature and NOx as the dominant drivers of ozone formation.These accounted for 47.8%and 17.4%,respectively.Temperature showed a positive correlation with O3 because an increase in temperature can promote ozone formation.NOx had a significant negative correlation with O3,which was consistent with the conclusions from the sensitivity analysis of the OBM.The dominant contributors to SOA were vehicle emissions,solvent use,and industrial emissions.These accounted for 43.9%,18.2%,and 10.5%,respectively.An evident positive correlation existed between these emission sources and SOA. 展开更多
关键词 Volatile organic compounds Ozone formation Secondary organic aerosol Observation-based model Random forest
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Review on advances in recycling and utilization of titanium-bearing secondary resources 认领 引用
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作者 Liang-Jin Zhang Yu-Zhu Zhang +6 位作者 Wu Zhu Qian-Qian Ren Lu-Yang Duan Xian-Bo Cai Xing-Hui Zhao Xue-Wei Gu Bao Liu 《Journal of Iron and Steel Research International》 SCIE EI CSCD 2026年第6期236-258,共23页
Titanium is widely regarded as a strategically important metal due to its outstanding properties and broad applications in metallurgy,aerospace,and energy sectors.However,with the gradual depletion of primary titanium... Titanium is widely regarded as a strategically important metal due to its outstanding properties and broad applications in metallurgy,aerospace,and energy sectors.However,with the gradual depletion of primary titanium ores,concerns over long-term supply security are becoming increasingly prominent.At present,less than 20%of titanium-bearing secondary resources are effectively utilized,while the majority are either stockpiled or discarded,resulting in both significant resource loss and environmental challenges.A comprehensive review of six representative titanium-bearing secondary resources,which were either derived from titanium production processes or contain relatively high levels of titanium,was conducted.These resources included titanium-bearing blast furnace slag,titanium-extracted tailings,ferrotitanium slag,titanium gypsum,spent selective catalytic reduction catalysts,and red mud.The chemical and mineralogical characteristics,utilization pathways,and underlying reaction mechanisms were systematically summarized.Particular attention was given to recent advances in extraction technologies for titanium recovery from these materials.From a practical standpoint,classifying and recycling these resources according to their intrinsic physicochemical properties could enable more targeted and efficient recovery strategies.Meanwhile,the development of low-carbon or carbon-neutral extraction technologies,together with environmentally benign leaching processes,remains highly desirable.Additionally,the integration of intelligent management systems for monitoring energy consumption,environmental impact,and economic performance will play a crucial role in advancing the sustainable utilization of titanium-bearing resources. 展开更多
关键词 Titanium Secondary resource Recycling Titanium extraction
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Enhancing in-situ coal-gangue identification in LTCC mining via secondary surfactant intervention and infrared thermography 认领 引用
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作者 Jinwang Zhang Geng He +3 位作者 Shengli Yang Hongwei Fu Jin Zhao Fengchen Wang 《International Journal of Mining Science and Technology》 SCIE EI CAS CSCD 2026年第6期1249-1274,共26页
Accurate in-situ identification of coal and gangue is critical for intelligent mining,particularly in longwall top coal caving(LTCC)mining,where it enables precise control of the gangue mixed ratio and enhances resour... Accurate in-situ identification of coal and gangue is critical for intelligent mining,particularly in longwall top coal caving(LTCC)mining,where it enables precise control of the gangue mixed ratio and enhances resource recovery.This study introduces a Secondary Intervention strategy to augment the conventional“liquid intervention+infrared detection”approach.Results demonstrate that Secondary Intervention can consistently enhance the thermal contrast between coal and gangue,and the average accuracy of infrared image recognition for coal and gangue increased from 79.14%after the First Intervention to 93.75%after the Secondary Intervention,representing an improvement of 14.61%.Furthermore,the average contact angle difference between coal and gangue expanded from 16.64°after the First Intervention to 33.80°after the Secondary Intervention,an increase of 17.16°.Meanwhile,the area difference between coal and gangue increased by 4.94 times.Moreover,based on comprehensive analysis of the temperature difference,accuracy of morphological identification,as well as the contact angle and area of droplets,the eco-friendly compound surfactant(EFCS)of Soapnut Saponin(SS)+CTAB with a concentration of0.06 wt%demonstrated optimal performance.These findings advance liquid intervention techniques for infrared-based recognition and support the development of greener,more intelligent coal production systems. 展开更多
关键词 Coal-gangue identification Infrared thermography Secondary Intervention Longwall top coal caving(LTCC) Intelligent mining Heat transfer
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Determinants of secondary school students'conservation willingness toward the Great Bustard(Otis tarda)in riparian cities along the Yellow River in Henan Province,China 认领 引用
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作者 Peng Wang Xueqian Cao +3 位作者 Xiaoting Huang Dawei Gao Haipeng Zhao Yanping Wang 《Avian Research》 SCIE CAS CSCD 2026年第2期539-547,共9页
Understanding public conservation willingness is crucial for mitigating the global decline in avian diversity.Secondary school students,as key future actors and stakeholders in biodiversity conservation,represent a cr... Understanding public conservation willingness is crucial for mitigating the global decline in avian diversity.Secondary school students,as key future actors and stakeholders in biodiversity conservation,represent a critical demographic,but their conservation willingness toward avian species remains largely underexplored.To address this gap,we conducted a questionnaire survey in 64 secondary schools across eight riparian cities along the Yellow River in Henan Province,China.Using the Great Bustard(Otis tarda)—a national first-class protected species and local conservation flagship—as the focal species,we constructed piecewise structural equation models(SEMs)to identify the key factors influencing students'conservation willingness.The questionnaire results revealed that although nearly 90%of students supported the Great Bustard conservation,only about 30%understood both its protection class and habitat characteristics,and less than half had relevant nature experience or had participated in local forestry departments'science communication activities.The piecewise SEM results demonstrated that students'interest in birds,knowledge level of the Great Bustard,and participation in science communication activities all exerted direct and significant positive influences on their conservation willingness.In addition to its direct effect,science communication engagement also indirectly enhanced conservation willingness by strengthening interest and knowledge,while the effects of grade level and nature experience were exclusively indirect,operating through the same pathways.To improve the effective conservation of the Great Bustard,we recommend that secondary schools strengthen collaborations with universities and nature reserves to enrich students'nature experience,and that local forestry departments further expand the coverage and depth of science communication activities targeting adolescent groups. 展开更多
关键词 Conservation willingness Interest in birds Nature experience Questionnaire survey Secondary school students
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Pyrite-based mixotrophic denitrification promoted nitrogen removal from actual secondary effluent in natural aerobic environments:Particle-size optimization and microbial synergism 认领 引用
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作者 Yanbo Jiang Minlong Li +3 位作者 Xiaona Zheng Song Liu Xingcan Feng Yuntao Guan 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2026年第5期221-230,共10页
Implementing advanced nitrogen removal in wastewater treatment plants has emerged as a critical strategy to comply with tightening global nitrogen discharge mandates.To achieve advanced nitrogen removal under low-carb... Implementing advanced nitrogen removal in wastewater treatment plants has emerged as a critical strategy to comply with tightening global nitrogen discharge mandates.To achieve advanced nitrogen removal under low-carbon treatment conditions,pyrite-based mixotrophic denitrification(PMD)demonstrates promising application prospects.However,existing research predominantly focuses on synthetic wastewater in laboratory settings,with insufficient attention to practical applications using complex real wastewater.This study investigated PMD treating actual secondary effluent(TN:16-25 mg/L)from a full-scale wastewater treatment plant under natural aerobic conditions.Through optimized pyrite particle size(1.2-2.4 mm)and carbon-to-nitrogen ratio(C/N=3:1),PMD achieved 90.8%TN removal efficiency with effluent TN<2 mg/L,meeting stringent discharge standards.Under optimized conditions,oxygen boosted S2-/Fe2+release from pyrite.The 1.2-2.4 mm particles created micro-aerobic and micro-anaerobic niches,which facilitated synergistic symbiosis between autotrophic and heterotrophic denitrifiers.This microbial collaboration endowed the system with enhanced denitrification performance and improved filtration characteristics.The dominant bacterial genera in optimal conditions were unclassified_f_Rhodocyclaceae(22.4%),unclassified_f_Comamonadaceae(16.3%),and Thauera(5.9%),while nirK-type denitrifying bacteria dominated the denitrification in this system.This research offers valuable recommendations for developing an energy-efficient and low-carbon advanced nitrogen removal process in wastewater treatment facilities. 展开更多
关键词 Pyrite particle size Natural aerobic Actual secondary effluent Advanced nitrogen removal Microbial synergism
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Photooxidation and ozonolysis ofα-pinene and limonene mixtures:Mechanisms of secondary organic aerosol formation and cross-dimerization 认领 引用
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作者 Yingqi Zhao Ya Zhao +8 位作者 Chong Wang Yufeng Shao Hua Xie Jiayue Yang Weiqing Zhang Guorong Wu Gang Li Ling Jiang Xueming Yang 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2026年第3期525-535,共11页
Elucidating the interplay between different volatile organic compounds(VOCs)is crucial for understanding the formation mechanisms of secondary organic aerosols(SOA).This study systematically investigated the interacti... Elucidating the interplay between different volatile organic compounds(VOCs)is crucial for understanding the formation mechanisms of secondary organic aerosols(SOA).This study systematically investigated the interactions between the bicyclic monoterpeneα-pinene and the monocyclic monoterpene limonene under NO2photooxidation and dark ozonolysis conditions.The results show that under the NO2photooxidation conditions,the increase of[limonene]0 enhances particle mass concentrations,number concentrations,and particle size;the increase of[α-pinene]0 results in the increase of particle mass and number concentrations without the increase of particle size.Under the dark ozonolysis conditions,particle mass and number concentrations increase with the increase of[α-pinene]0 and[limonene]0;the effect of increasing[α-pinene]0 on SOA mass concentration is significantly smaller than that of increasing[limonene]0,which may be attributed to the shift to a smaller particle size with the increase of[α-pinene]0.As the[limonene]0/[mixed VOCs]0 ratio increases from 0%to 100%,the SOA yield increases from 54.6%to 65.2%under the NO2photooxidation conditions and from 19.8%to 26.2%under the O3conditions.Using threshold photoionization mass spectrometry based on a vacuum ultraviolet free electron laser,a series of new products were detected at molecular weights of 364,366,380,386,411,413,and414,which could be assigned to the cross-dimers,such as organic peroxides,ester dimers,and organic nitrates.Our study underscores the critical role of monocylic monoterpene limonene in the SOA formation and advances our understanding of the SOA formation in the atmosphere. 展开更多
关键词 Secondary organic aerosol Monoterpene oxidation Cross reaction α-Pinene Limonene
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Distribution of Tobacco Retail Outlets around Secondary Schools and Association with Students'Smoking Behavior in Beijing,2024 认领 引用
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作者 Mingxin Qi Xiaokai Jia +2 位作者 Ruiran Liu Yingchen Sang Lin Xiao 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2026年第1期111-115,共5页
Adolescent smoking constitutes a critical public health challenge as early initiation increases the risk of premature mortality and smoking-related chronic diseases due to longer exposure and higher cumulative tobacco... Adolescent smoking constitutes a critical public health challenge as early initiation increases the risk of premature mortality and smoking-related chronic diseases due to longer exposure and higher cumulative tobacco use[1].Adolescents are especially prone to developing persistent smoking habits,with many adult smokers having started before the age of 18.In China,16.7%of secondary school students have tried smoking and 4.7%are current smokers,highlighting the critical need for targeted tobacco control interventions among the youth. 展开更多
关键词 tobacco retail outlets chronic diseases secondary schools public health premature mortality targeted tobacco control int targeted interventions adolescent smoking
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Impact of body mass index on the efficacy of acupuncture treatment of postprandial distress syndrome:secondary analysis of a randomized clinical trial 认领 引用
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作者 LI Yuejie YANG Guang +2 位作者 LIU Luping YANG Jingwen LIU Cunzhi 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2026年第2期439-446,共8页
OBJECTIVE:To assess the impact of body mass index(BMI)on the effectiveness of acupuncture in treating postprandial distress syndrome(PDS).METHODS:Data from 278 patients enrolled in a prior multicenter,randomized,sham-... OBJECTIVE:To assess the impact of body mass index(BMI)on the effectiveness of acupuncture in treating postprandial distress syndrome(PDS).METHODS:Data from 278 patients enrolled in a prior multicenter,randomized,sham-controlled trial were analyzed in this secondary study.Patients were classified into three groups according to baseline BMI:low,normal,and high.The primary outcome was the response rate after 4 weeks of treatment.The χ2 test was used to examine the effect of BMI on acupuncture efficacy.After multiple imputation for missing data,logistic regression analysis was performed to evaluate this association.A sensitivity analysis was conducted by combining the low and normal BMI groups.In addition,BMI was analyzed as a continuous variable using logistic regression to explore its relationship with treatment efficacy in the acupuncture group.RESULTS:The χ2 test revealed a statistically significant difference,with the acupuncture group demonstrating a markedly higher response rate than the sham group(82.91%vs 51.79%,χ2=25.34,P<0.001).In both the normal and high BMI categories,the response rate in the acupuncture group(82.91%)was higher than that in the sham acupuncture group(48.21%)(χ2=25.34,P<0.001).Following multiple imputation,logistic regression analysis demonstrated a significant overall association between BMI category and treatment response(P<0.001).Acupuncture showed superior efficacy compared with sham acupuncture[OR=1.97,95%CI(1.34,2.90),P<0.001].At week 4,response rates were 68.4%in the low BMI group,81.7%in the normal BMI group,and 96.3%in the high BMI group(χ2=6.303,P=0.043).A significant difference was observed only between the low and high BMI groups(χ2=6.717,P=0.010).Sensitivity analysis showed that the high BMI group achieved significantly better outcomes than the non-high BMI group in elimination rates at week 8 and week 12(χ2=4.571,P=0.033;χ2=4.589,P=0.032).Logistic regression analysis indicated that BMI was an independent predictor of response rate at week 4[OR=1.186,95%CI(1.010,1.394),P=0.038]and elimination rate at week 12[OR=1.126,95%CI(1.002,1.265),P=0.047],whereas no significant associations were observed at other follow-up points.CONCLUSION:This subgroup analysis indicated that acupuncture improved PDS symptoms across different BMI categories.Acupuncture was suggested as a viable therapeutic option for patients with PDS,particularly those with a higher BMI. 展开更多
关键词 acupuncture body mass index postprandial distress syndrome secondary analysis
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Cotton fiber length was shortened under high temperature by inhibition of cell wall loosening and acceleration of secondary wall synthesis 认领 引用
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作者 Liuyan Yang Manli Zhao +5 位作者 Wenting Tang Wei Hu Zhiguo Zhou Baiqing Chen Qiuxiang Tang Wenqing Zhao 《The Crop Journal》 SCIE CSCD 2026年第3期821-834,共14页
To determine how high temperature(HT)impairs cotton fiber elongation,greenhouse experiments compared two temperature regimes(CT,28℃HT,38℃)for 12 d.The findings indicated that compared with CT,the fiber elongation ra... To determine how high temperature(HT)impairs cotton fiber elongation,greenhouse experiments compared two temperature regimes(CT,28℃HT,38℃)for 12 d.The findings indicated that compared with CT,the fiber elongation rate initially increased during HT(0-8 d),but subsequently decreased,resulting in a significant decrease in cotton fiber length at harvest.At 3 and 6 d under HT,cell turgor pressure increased;additionally,the auxin and ethylene content in fiber significantly increased,promoting cell wall loosening and increasing elongation rate through regulating xyloglucan endoglycosyltransferases/hydrolases and expansin.At 12 d under HT,cellulose and hemicellulose decomposition were inhibited in fiber,which hindered cell wall loosening and restricted fiber elongation.Meanwhile,the lipid and callose content in fiber was increased,and the enhanced abscisic acid and H2O2content promoted lignin synthesis by up-regulating the expression of WLIM1a gene.Both changes accelerated the initiation of secondary wall synthesis.Consequently,the transition stage that coincides with fiber elongation and secondary wall thickening was reduced by 0.3-0.5 d,leading to a decrease in fiber length.In summary,fiber length was reduced under HT,accompanied by restricted cell wall loosening and accelerated secondary wall synthesis. 展开更多
关键词 Cotton(Gossypiumhirsutum L.) High temperature Fiber elongation Secondary wall synthesis
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Etiology and clinical analysis of secondary glaucoma:a single-center study from northwest China 认领 引用
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作者 Ying Liu Jie Yang +6 位作者 Rui-Xue Zhang Yao Lu Wei Sang Jin-Wei Xi Jun Jia Dan-Ping Guo Yuan He 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2026年第1期69-76,共8页
AIM:To investigate the etiology and clinical characteristics of hospitalized secondary glaucoma(SG)patients in northwestern China.METHODS:A cross-sectional study was conducted involving SG patients hospitalized betwee... AIM:To investigate the etiology and clinical characteristics of hospitalized secondary glaucoma(SG)patients in northwestern China.METHODS:A cross-sectional study was conducted involving SG patients hospitalized between July 2024 and January 2025.Clinical data were collected,including medical history,best-corrected visual acuity(BCVA),intraocular pressure(IOP),slit-lamp examination,gonioscopic findings,and fundus examination.Demographic characteristics,etiological factors,and treatment modalities were analyzed.RESULTS:A total of 67 patients(82 eyes)were enrolled,aged 7 to 90y.Males accounted for 54.0%(36/67),and 22.4%(15/67)of patients had bilateral involvement.The predominant etiologies of SG were neovascular glaucoma(NVG;25.4%),traumatic glaucoma(23.9%),uveitic glaucoma(20.9%),and lens-induced glaucoma(14.9%),collectively accounting for 85.1%of all cases.The peak age-specific incidence occurred in the 50-59 years age group(32.8%,22/67),while NVG was prevalent across the 40-79 years age range.IOP of the 82 affected eyes was stratified into five severity tiers:22-29 mm Hg(15 eyes,18.3%),30-39 mm Hg(14 eyes,17.1%),40-49 mm Hg(13 eyes,15.9%),50-59 mm Hg(20 eyes,24.4%),and≥60 mm Hg(20 eyes,24.4%).The overall mean IOP was 45.2±12.3 mm Hg,indicating a significant pathological elevation.Surgical intervention was required in 46.3%of cases,predominantly for NVG,lensinduced glaucoma,and traumatic glaucoma—conditions prone to rapid IOP elevation.The etiologies with the highest surgical intervention rates were malignant glaucoma,pigmentary glaucoma,lens-induced glaucoma,and NVG.In contrast,uveitic glaucoma cases were primarily managed with targeted anti-inflammatory therapy,which effectively controlled IOP in the early disease stages and potentially obviated the need for surgery.CONCLUSION:This study identifies NVG,traumatic glaucoma,uveitic glaucoma,and lens-induced glaucoma as the four leading etiologies of SG in Northwestern China.These findings emphasize the critical need for targeted prevention strategies and evidence-based health education programs among high-risk populations.Implementation of such initiatives will improve early detection,enable ophthalmologists to deliver timely therapeutic interventions,and ultimately reduce preventable vision loss in this region. 展开更多
关键词 secondary glaucoma epidemiological northwestern China etiology
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Efficient separation of heavy metals from gypsum residue and secondary zinc oxide fume based on synergistic sulfidation 认领 引用
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作者 Yong-wei WANG Rui HUANG +1 位作者 Wen-qing QIN Jun-wei HAN 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2026年第6期1903-1920,共18页
Synergistic sulfidation roasting of heavy metal gypsum residue and secondary zinc oxide fume was proposed by using the research idea of“waste to treat waste”.Thermodynamic studies indicated that the sulfidation of z... Synergistic sulfidation roasting of heavy metal gypsum residue and secondary zinc oxide fume was proposed by using the research idea of“waste to treat waste”.Thermodynamic studies indicated that the sulfidation of zinc oxide could be effectively enhanced by increasing the dosage of calcium sulfate and carbon powder in the range of 500-800℃.The synergistic sulfidation experiments of heavy metal gypsum residue with secondary zinc oxide showed that the sulfidation rate of zinc reached 90.39% and the grain size of ZnS increased from 5 to 10μm under the conditions of temperature 700℃,carbon powder 30%,Na2CO310%,mass ratio of gypsum residue to secondary zinc oxide 1.4꞉1,roasting time 2 h and cooling rate 1℃/min.Meanwhile,76.32%F,72.11%Cl and 93.41%As were removed.TG/DTG-DSC,3D FTIR spectra and SEM analysis showed that the conversion of CaSO4 to CaCO3 and the avoidance of CO2 and SO2 production were achieved under optimized conditions.This study achieves efficient sulfidation of zinc as well as growth of ZnS grains,laying the theoretical and technological foundation for subsequent recovery of ZnS by flotation. 展开更多
关键词 heavy metal gypsum residue secondary zinc oxide fume synergistic sulfidation thermodynamics grain regulation
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The molecular and hormonal regulation of cotton fiber development:from single‑cell initiation to secondary wall thickening 认领 引用
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作者 LIU Zhixin QIN Aizhi +6 位作者 LONG Jiani FAN Xiaoli LIAO Mengyu WANG Baozhen ZHANG Yinpeng KANG Wenxuan SUN Xuwu 《Journal of Cotton Research》 CAS CSCD 2026年第2期290-306,共17页
Cotton fiber provides an exceptional model system for studying plant cell differentiation,elongation,and cell wall biogenesis.Recent advances in genomics,single-cell transcriptomics,genome editing,and multi-omics appr... Cotton fiber provides an exceptional model system for studying plant cell differentiation,elongation,and cell wall biogenesis.Recent advances in genomics,single-cell transcriptomics,genome editing,and multi-omics approaches have dramatically expanded our understanding of the molecular networks governing cotton fiber development.This review synthesizes current knowledge on the transcriptional,hormonal,epigenetic,and metabolic regulation of fiber initiation,elongation,and secondary cell wall(SCW)formation.We highlight the central roles of key transcription factors families—including MYB,HD-ZIP,bHLH,and NAC—in coordinating fiber cell fate determination and morphogenesis.We further discuss how phytohormones such as auxin,gibberellins,brassinosteroids,and strigolactones interact to regulate fiber elongation and SCW deposition.Emerging evidence also indicates that epigenetic mechanisms,including chromatin accessibility and RNA methylation,contribute to the fine-tuning of stage-specific gene expression.Furthermore,we explore how cytoskeletal dynamics and lipid metabolism contribute to polarized cell growth.Finally,we assess the potential of CRISPR-Cas9-mediated gene editing for cotton fiber improvement and propose future research directions aimed at bridging knowledge gaps between molecular mechanisms and agronomic traits.Despite these advances,several knowledge gaps remain,including the precise integration of hormonal hierarchies,the functional validation of predicted regulatory modules in polyploid cotton,and the translational feasibility of gene editing for fiber quality improvement under field conditions. 展开更多
关键词 Cotton fiber Transcription factor Phytohormone signaling Single-cell RNA-seq Chromatin accessibility CRISPR-Cas9 Secondary cell wall Fiber elongation
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Paths and Methods for Secondary Vocational Class Teachers to Carry Out Mental Health Education 认领 引用
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作者 WANG Heng 《外文科技期刊数据库（文摘版）教育科学》 2026年第2期140-146,共7页
In the implementation of the fundamental task of fostering virtue through education, mental health education delivered by secondary vocational class teachers serves as a core measure to expand the coverage of psycholo... In the implementation of the fundamental task of fostering virtue through education, mental health education delivered by secondary vocational class teachers serves as a core measure to expand the coverage of psychological services and build a full-scenario psychological education network. At present, the practical work faces multiple dilemmas: ambiguous power and responsibility boundaries for class teachers undertaking psychological education, low integration between mental health education and routine class management, inadequate targeted supply of tiered and categorized psychological services, and prominent deficiencies in supporting guarantee systems. In response, secondary vocational schools should clarify the power and responsibility list for class teachers’ psychological education and define the prohibited work scope, establish an integration mechanism linking mental health education with class management, construct a tiered and categorized psychological service supply system, and improve supporting modules including training and supervision, risk sharing, and performance incentives, so as to fully activate the psychological education capacity of class teachers. 展开更多
关键词 Secondary vocational class teachers Mental health education Moral education in secondary vocational schools Class management
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Secondary metabolite profiling deciphers the phenolic and volatile organic compound diversity within an interspecific Malus collection 认领 引用
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作者 Genny Zambiasi Marta Degasperi +8 位作者 Iuliia Khomenko Franco Biasioli Domenico Masuero Urska Vrhovsek Nicola Busatto Walter Guerra Michela Troggio Fabrizio Costa Brian Farneti 《Horticultural Plant Journal》 SCIE CAS CSCD 2026年第7期1554-1566,共13页
Secondary metabolites play fundamental roles in apple,influencing the interaction with pollinators and frugivores for seed dispersal,contributing to fruit quality and promoting human health through their antioxidant p... Secondary metabolites play fundamental roles in apple,influencing the interaction with pollinators and frugivores for seed dispersal,contributing to fruit quality and promoting human health through their antioxidant property.Domestication and breeding have significantly re-shaped the apple metabolism,altering both aromatic profiles and nutritional properties.This study assessed the secondary metabolite variation in a comprehensive Malus spp.collection comprising 163 accessions belonging to 44 species.The profiling of phenolic and volatile organic compounds(VOCs),performed with Ultra-Performance Liquid Chromatography(UPLC)and Proton-Transfer-Reaction Time-of-Flight Mass Spectrometry(PTR-ToF-MS)instruments respectively,in both skin and pulp tissues,uncovered distinct metabolic patterns between wild and domesticated apples.This investigation underlined the higher concentration of these metabolites in the skin tissue and revealed a clear metabolic divergence between the two groups of Malus accessions.Wild Malus spp.accessions resulted particularly rich in specific polyphenols characterized by antioxidant activity,including catechin and procyanidins.Conversely,apples of Malus domestica accessions exhibited a more abundant VOC profile,particularly represented by esters associated with fruity aroma,enhancing sensory appeal.These findings provide a foundation for leveraging wild germplasm in breeding programs,and the identification of accessions with high polyphenolic concentration and desirable aromatic profiles offers valuable opportunities to improve the aromatic and nutraceutical properties of apple. 展开更多
关键词 Apple Diversity Secondary metabolites Polyphenols VOCs Domestication Quality
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Ultra-low hysteresis and wide-temperature-range magnetic refrigeration in Ni-Co-Mn-Ti alloys enabled by Sc-induced secondary phase formation 认领 引用
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作者 Kongyang Yu Zhixing Ye +2 位作者 Jie Shao Huan Chen Zhaojun Mo 《Journal of Rare Earths》 SCIE EI CAS CSCD 2026年第5期1533-1540,共8页
Ni-Co-Mn-Ti alloys have become one of the most promising magnetic refrigeration materials due to their large magnetocaloric effect.However,magnetic hysteresis during magnetization and demagnetization cycles leads to c... Ni-Co-Mn-Ti alloys have become one of the most promising magnetic refrigeration materials due to their large magnetocaloric effect.However,magnetic hysteresis during magnetization and demagnetization cycles leads to considerable loss of hysteresis,thereby reducing the refrigeration capacity.Here,we report that the introduction of the rare-earth element Sc,leading to the formation of a secondary phase,significantly reduces the hysteresis loss in Ni-Co-Mn-Ti alloys.In the Ni37Co13Mn35Ti15-xScx(x=0,1.25,1.5,2)alloys,as the Sc content increases,the magnetic entropy change gradually decreases,while the refrigeration temperature range steadily broadens,and the magnetic hysteresis loss significantly reduces.When the Sc content reaches x=2,the magnetic hysteresis loss drops to 29.3 J/kg,representing an 70%reduction compared to the undoped sample(97.75 J/kg).Therefore,although the magnetic entropy change decreases,the substantial reduction in hysteresis loss and the expansion of the refrigeration temperature range lead to a reverse growth of the effective refrigerant capacity(RCeff).At the same time,the introduction of the second phase also leads to a significant improvement in mechanical properties.These findings suggest that introducing a secondary phase through Sc doping is an effective strategy for reducing hysteresis losses,making Ni-Co-Mn-Ti alloys a promising material system for magnetic refrigeration. 展开更多
关键词 Magnetocaloric effect Ni-Co-Mn-Ti Secondary phase Magnetic hysteresis Effective refrigerant capacity Rare earths
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Atmospheric oxidation capacity and its influence on secondary pollution during winter PM2.5haze episodes in Urumqi 认领 引用
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作者 Binqian Fan Yingying Liu +5 位作者 Gaofeng Yu Zhenze Song Yanhui Liu Xiaoli Wang Chunmei Geng Wen Yang 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2026年第2期468-480,共13页
Atmospheric oxidation capacity(AOC)refers to the oxidation capacity of atmospheric chemical processes for major pollutants.A comprehensive observation campaign was conducted on a typical PM2.5pollution event in Uru... Atmospheric oxidation capacity(AOC)refers to the oxidation capacity of atmospheric chemical processes for major pollutants.A comprehensive observation campaign was conducted on a typical PM2.5pollution event in Urumqi,Northwest China,from January 15 to February 15,2024.Four typical cases representing PM2.5levels from non-polluted to heavily polluted periods were selected to estimate AOC,OH reactivity,their relationship with secondary components,and the HOxbudget in PM2.5using the Framework for 0-D Atmospheric Modeling model.Aromatics and alkanes contributed 54%-79%and 18%-46%of secondary organic aerosols(SOA)formation,respectively.The sulfur oxidation ratio(SOR)and nitrogen oxidation ratio(NOR)increased with rising PM2.5levels.As AOC increased,SOR showed the same trend,while NOR and SOA decreased slightly,and ammonia oxidation ratio values remained almost unchanged.OH radicals were the primary oxidants during the daytime,whereas NO3played a dominant role at nighttime.CO(24%-51%),NO2(27%-34%),and alkenes(7%-12%)were the dominant contributors to OH reactivity.The HO2+NO reaction pathway contributes 67%-84%to the production of OH,while Others(including carbonyl compounds photolysis,the permutation reactions of RO2,etc.),RO2+NO and OH+CO reaction pathways were the main pathways for HO2 production.A comprehensive understanding of the interactions among AOC,SOA,and radical cycling is crucial for formulating effective air quality management strategies aimed at mitigating secondary pollution under diverse atmospheric conditions. 展开更多
关键词 Secondary organic aerosols Atmospheric oxidation capacity Photochemical consumed VOCs OH reactivity HOx budget
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Research on Secondary Metabolites from a Mangrove-Derived Fungus Penicillium janthinellum XLN32122 and Their Biological Activities 认领 引用
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作者 Shi Jueying Qiu Yikang +6 位作者 Lan Jing Xu Zhenyang Wang Yi Li Jiaxiang Luo Youping Huang Guolei Zheng Caijuan 《有机化学》 SCIE CAS CSCD 北大核心 2026年第2期678-683,共6页
new heterocyclic dipeptide with a highly functionalized 1,2-oxazadecaline core,named trichodermamide H(1),and three known analogues,along with three known polyketides,were isolated from the fermentation extract of the... new heterocyclic dipeptide with a highly functionalized 1,2-oxazadecaline core,named trichodermamide H(1),and three known analogues,along with three known polyketides,were isolated from the fermentation extract of the mangrovederived fungus Penicillium janthinellum XLN32122.The structure of 1 was elucidated on the basis of extensive 1D and 2D NMR spectra data analysis,HR-ESI-MS,electronic circular dichroism(ECD)calculations.Trichodermamide B(3)exhibited better inhibitory effect on nitric oxide(NO)production in lipopolysaccharide(LPS)induced RAW 264.7 cells with an IC50value of(13.13±0.005)μmol/L than that of the positive control dexamethasone[IC50=(136.84±1.33)μmol/L].Compound 3 exhibited antibacterial activity against methicillin-resistant Staphylococcus aureus(MRSA)with an IC50value of 12.5μg/mL,while the positive control vancomycin showed an IC50value of 1.563μg/mL. 展开更多
关键词 mangrove-derived fungi secondary metabolites anti-inflammatory activity antibacterial activity
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NOx-driven chemical transformation of terpene mixtures:Linking highly oxygenated organic molecules to health effects in secondary organic aerosol 认领 引用
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作者 Xiaowen Chen Kun Li +5 位作者 Ruiyu Li Li Fang Haizhen Bian Wei Jiang Caiqing Yan Lin Du 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2026年第5期637-647,共11页
Biogenic volatile organic compounds(BVOCs),particularly terpenes,represent the dominant global source of secondary organic aerosols(SOA).However,the crucial investigation in terpene mixture under various nitrogen oxid... Biogenic volatile organic compounds(BVOCs),particularly terpenes,represent the dominant global source of secondary organic aerosols(SOA).However,the crucial investigation in terpene mixture under various nitrogen oxides(NOx)conditions needs to be further explored.To comprehensively understand the mixed SOA composition and its associated health effects,we simulated the mixed oxidation of α-pinene and isoprene in a smog chamber under various NOxconditions to investigate SOA formation and its related health effects.We found that increasing NOxlevels led to the formation of CHON compounds,suppressing functionalized products and oligomers.Results of the oxidative potential and total peroxides of SOA showed that mixed SOA had combined redox characteristics(isoprene SOA>mixed SOA>α-pinene SOA).The oxidative potential of isoprene SOA decreased as NOxincreased,whileα-pinene SOA was slightly affected.Results from iodometry combined with mass spectrometry indicated that hydrogen peroxides(ROOH)in highly oxygenated molecules played a crucial role in SOA health effects.NOxwas found to influence the production of ROOH by interfering with the RO2+HO2and RO2isomerization pathways.These results indicate that the reactive intermediate components in BVOC mixture under various NOxconditions are important factors influencing health effects of aerosol. 展开更多
关键词 Secondary organic aerosol Mixed oxidation NOx SOA composition Oxidative potential Organic peroxides
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The Secondary Motor Cortex-External Globus Pallidus Pathway Regulates Auditory Feedback of Volitional Control 认领 引用
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作者 Shengtao Luo Yuchen Fan +7 位作者 Feiyang Yu Xiaopeng Zhou Ke Hu Hang Yi Hui Zhou Tao Li Jiang-Fan Chen Liping Zhang 《Neuroscience Bulletin》 SCIE CAS CSCD 2026年第6期1218-1234,共17页
Effective use of brain-computer interfaces(BCIs)requires the ability to suppress a planned action(volitional inhibition)for adaptable control in real-world scenarios,but their mechanisms are unclear.Here,we used fiber... Effective use of brain-computer interfaces(BCIs)requires the ability to suppress a planned action(volitional inhibition)for adaptable control in real-world scenarios,but their mechanisms are unclear.Here,we used fiber photometry to monitor external globus pallidus(GPe)and subthalamic nucleus(STN)neurons’activity in mice during a volitional stop-signal task(67%GO,33%NO-GO).GPe/STN neurons(receiving M2 projections)responded to auditory cues,feedback,and rewards in both trials.Importantly,chemogenetic activation of the M2-GPe pathway enhanced volitional inhibition by modulating auditory feedback response,yet inhibited GPe neurons’feedback response.Furthermore,time-locked optogenetic inhibition of M2-projecting GPe neurons at auditory feedback also enhanced volitional inhibition via prolonged GO trial response times.Collectively,these findings identified the M2-GPe pathway for auditory biofeedback to improve volitional control,offering novel avenues for the advancement of neural interfaces for biofeedback and enhancement of BCI efficacy. 展开更多
关键词 Auditory feedback Biofeedback Volitional control Volitional inhibition BCI Secondary motor cortex(M2) External globus pallidus(GPe)
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