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Bilateral occurrence of sperm granulomas in the left spermatic cord and on the right epididymis:A case report

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World Journal of Clinical Cases 2022年第29期10卷 10787-10793页

作者： Ding-Yang Lv hong-jie xie Fan Cui Hui-Yu Zhou Wei-Bing Shuang Department of Urology The First Hospital of Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina

BACKGROUND Sperm granuloma is a rare disease in clinical andrology and its incidence is still unclear *** to the existing literature,sperm granuloma often occurs *** and ultrasound features are similar to epididymal tuberculosis,chronic epididymitis and other *** granuloma is usually diagnosed based on postoperative histopathological and immunohistochemical *** SUMMARY A 46-year-old man was admitted to the hospital due to the presence of a left scrotal mass for 3 mo and aggravation of pain for 1 *** lesions at both sites were surgically *** pathological examination showed that the left spermatic cord mass and the right epididymal mass were consistent with sperm *** sperm granulomas then recurred 3 mo after *** is little change in the local mass so *** The case report is helpful for our understanding of this *** clinical diagnosis,it should be distinguished from epididymal tuberculosis,chronic epididymitis and other *** Doppler ultrasound can be used as a preferred examination method but postoperative pathological examination is still needed for diagnosis.

关键词： Sperm granuloma Epididymis Spermatic cord Recurrence Case report

Investigation into enhanced performance of toluene and Hg0 stimulative abatement over Cr-Mn oxides co-modified columnar activated coke

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Journal of Environmental Sciences 2025年第2期148卷 88-106页

作者： Jiajie Wang jie Liu Lei Gao Dong xie Caiting Li Liping Xiang Huiyu Xiong Jiaqi xie Tianren Zhang Yueguo Pan School of Resources Environment and Safety Engineering University of South ChinaHengyang 421001China National&Local Joint Engineering Research Center for Airborne Pollutants Control and Radioactivity Protection in Buildings Hengyang 421001China Key Laboratory of Prefabricated Building Energy Saving Technology of Hunan Province Hengyang 421001China College of Environmental Science and Engineering Hunan UniversityChangsha 410082China

In this study,a string of Cr-Mnco-modified activated coke catalysts(XCryMn1-y/AC)were prepared to investigate toluene and Hg0 removal *** characterizations including XRD,TEM,SEM,in situ DRIFTS,BET,XPS and H_(2)-TPR showed that 4%Cr0.5Mn0.5/AC had excellent physicochemical properties and exhibited the best toluene and Hg0 removal efficiency at 200◦*** varying the experimental gas components and conditions,it was found that too large weight hourly space velocity would reduce the removal efficiency of toluene and *** O_(2) promoted the abatement of toluene and Hg0,the inhibitory role of H_(2)O and SO_(2) offset the promoting effect of O_(2) to some *** significantly inhibited Hg0 removal,resulting from that toluene was present at concentrations orders of magnitude greater than mercury’s or the catalyst was more prone to adsorb toluene,while Hg0 almost exerted non-existent influence on toluene *** mechanistic analysis showed that the forms of toluene and Hg0 removal included both adsorption and oxidation,where the high-valent metal cations and oxygen vacancy clusters promoted the redox cycle of Cr^(3+)+Mn^(3+)/Mn^(4+)+Cr^(6+)+Mn^(2+),which facilitated the conversion and replenishment of reactive oxygen species in the oxidation process,and even the CrMn1.5O4 spinel structure could provide a larger catalytic interface,thus enhancing the adsorption/oxidation of toluene and ***,its excellent physicochemical properties make it a costeffective potential industrial catalyst with outstanding synergistic toluene and Hg0 removal performance and preeminent resistance to H_(2)O and SO_(2).

关键词： Toluene Element mercury Cr-Mn oxides Activated coke

Structural engineering of high-entropy alloys for advanced electrocatalytic reactions

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Tungsten 2025年第1期7卷 1-31页

作者： Qiao xie Ying-jie Yu Hai-Jun Zhang Ya-Ping Deng Wen Lei The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and Technology Department of Chemical Engineering Waterloo Institute for Sustainable Energy Waterloo Institute for Nanotechnology University of Waterloo

High-entropy alloys(HEAs) have emerged as promising candidates to replace traditional precious metal catalysts,owing to their unique chemical and physical *** review commences by revisiting the fundamental concepts of HEAs,including their synthesis methods and structural control strategies in *** underscores the critical role of meticulously manipulating both macroscopic and microscopic structures of the HEAs to optimize their catalytic performance.A deep understanding of the structure-activity relationship in HEAs across various configurations is pivotal in developing more effective *** review methodically encapsulates the research progress of structural control strategies for HEAs in achieving efficient energy conversion,with the aim of gaining a better understanding of the relationship between structure and *** review concludes by summarizing the current achievements and challenges,and suggestions for potential future directions of HEAs in the fields of energy conversion and environmental purification.

关键词： Electrocatalytic Energy conversion High-entropy alloys Structural modulation

Mechanism analysis of effect of MgO on reduction swelling behaviour of iron pellets in CO/H_(2)atmosphere based on first-principles calculations

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Journal of Iron and Steel Research International 2025年第1期32卷 73-84页

作者： hong-ming Long Jing-shu An Xing-wang Li Ting Wu Sheng-ping He jie Lei School of Metallurgical Engineering Anhui University of TechnologyMa’anshan243032AnhuiChina Key Laboratory of Metallurgical Emission Reduction and Resource Comprehensive Utilization(Anhui University of Technology) Ministry of EducationMa’anshan243002AnhuiChina College of Materials Science and Engineering Chongqing UniversityChongqing400044China

To explain the influence mechanism of MgO on the consolidation and reduction characteristics of roasted iron pellets,the properties and structure of pellets were investigated from *** indicated that the MgO addition decreased the reduction swelling index(RSI)and reduction degree of pellets in both CO and H_(2)*** the stepwise reduction process of Fe2O3→Fe3O4→FeO,the reduction behaviour of pellets in CO and H_(2)was similar,while the reduction rate of pellets in H_(2)atmosphere was almost twice as high as that in CO *** the stepwise reduction process of FeO→Fe,the RSI of pellets showed a logarithmic increase in CO atmosphere and a linear decrease in H_(2)*** investigated by first-principles calculations,C and Fe mainly formed chemical bonds,and the CO reduction process released energy,promoting the formation of iron ***,H and Fe produced weak physical adsorption,and the H_(2)reduction process was endothermic,inhibiting the generation of iron *** Mg2+doping in FexO,the nucleation region of iron whiskers expanded in CO reduction process,and the morphology of iron whiskers transformed from“slender”to“stocky,”reducing RSI of the pellets.

关键词： MgO CO atmosphere H_(2)atmosphere Reduction degree Reduction swelling index First-principles calculation

Impacts of emission reduction and meteorological conditions on air quality improvement from 2016 to 2020 in the Northeast Plain,China

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Journal of Environmental Sciences 2025年第5期151卷 484-496页

作者： Xueling Yang Qiyuan Wang Lang Liu jie Tian Hailing xie Luyao Wang Yue Cao Steven Sai Hang Ho Key Laboratory of Aerosol Chemistry and Physics State Key Laboratory of Loess and Quaternary GeologyInstitute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China Xi’an Institute for Innovative Earth Environment Research Xi’an 710061China National Observation and Research Station of Regional Ecological Environment Change and Comprehensive Management in the Guanzhong Plain Xi’an 710061China College of Meteorology and Oceanography National University of Defense TechnologyChangsha 410073China Division of Atmospheric Sciences Desert Research InstituteRenoNV 89512USA

The Northeast Plain in China ranks among the top five regions that have been significantly impacted by haze *** effectively control pollution,it is crucial to accurately assess the effects of emission reduction *** this study,we analyzed surveillance data and found substantial decreases(ranging from 19.0%to 50.1%)in average annual mass concentrations of key pollutants(such as CO,SO_(2),NO_(2),and PM_(2.5))in the Northeast Plain from 2016 to *** precisely determine the contributions of meteorological conditions and emission reductions to the improvement of air quality in the Northeast Plain,we conducted three scenario *** comparing source emissions in December 2016 and 2020 using the WRF-Chem model(except for SO_(2)),we observed significant reductions of 21.3%,8.8%,and 9.8%in mass concentrations of PM_(2.5),NO_(2),and CO,respectively,from 2016 to *** highlights the essential role that meteorological conditions play in determining air quality in the Northeast ***,further reducing source emissions by 30%in December 2016 resulted in subsequent reductions of 25.3%,29.0%,4.5%,and 30.3%in mass concentrations of PM_(2.5),SO_(2),NO_(2),and CO,respectively,under the same meteorological ***,source emission reduction was effective for PM_(2.5),SO_(2),and CO,but not for NO_(2).The improvement in air quality in the Northeast Plain from 2016 to 2020 can be attributed to the combined effects of improved meteorological conditions and reduced pollution sources.

关键词： Air quality Emission reduction Meteorological conditions The Northeast Plain WRF-Chem

Edge supercurrent in Josephson junctions based on topological materials

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Science China(Physics,Mechanics & Astronomy) 2025年第2期68卷 1-12页

作者： Junjie Qi Chui-Zhen Chen Juntao Song jie Liu Ke He Qing-Feng Sun X.C.xie Beijing Academy of Quantum Information Sciences Beijing 100193China School of Physical Science and Technology Soochow UniversitySuzhou 215006China Institute for Advanced Study Soochow UniversitySuzhou 215006China College of Physics and Hebei Advanced Thin Films Laboratory Hebei Normal UniversityShijiazhuang 050024China School of Physics Xi’an Jiaotong UniversityMinistry of Education Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed MatterXi’an 710049China State Key Laboratory of Low Dimensional Quantum Physics Department of PhysicsTsinghua UniversityBeijing 100084China Frontier Science Center for Quantum Information Beijing 100084China Hefei National Laboratory Hefei 230088China International Center for Quantum Materials School of PhysicsPeking UniversityBeijing 100871China Interdisciplinary Center for Theoretical Physics and Information Sciences Fudan UniversityShanghai 200433China

The interplay between novel topological states and superconductivity has garnered substantial interest due to its potential for topological quantum *** Josephson effect serves as a useful probe for edge superconductivity in these hybrid topological *** Josephson junctions based on topological materials,supercurrents exhibit unique quantum interference patterns,including the conventional Fraunhofer oscillations,theΦ_(0)-periodic oscillation,and the 2Φ_(0)-periodic oscillation in response to the external magnetic field(Φ_(0)=h/2e is the flux quantum,h the Planck constant,and e the electron charge).These interference patterns stem from varied Andreev reflection mechanisms and the associated current density *** review seeks to comprehensively examine the theoretical and experimental advancements in understanding the quantum interference patterns of edge supercurrents in Josephson junctions based on quantum spin Hall,quantum Hall,and quantum anomalous Hall systems.

关键词： quantum Hall effect quantum spin Hall effect quantum anomalous Hall effect Josephson junction edge supercurrent Andreev reflection

Effect of lanthanum on microstructure of a nickel-based single crystal superalloy

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China Foundry 2025年第1期22卷 55-64页

作者： hong Gao Kai Guan Ren-jie Cui Jian-chao Qin Zi-han Zhao Zhao-hui Huang Science and Technology on Advanced High Temperature Structural Materials Laboratory Beijing Institute of Aeronautical MaterialsBeijing 100095China

To enhance the high-temperature oxidation resistance and mechanical properties of a secondgeneration nickel-based superalloy,various concentrations of lanthanum(La)ranging from 5.0×10^(-5)wt.%to 3.4×10^(-4)wt.%are added to the *** microstructure of the nickel-based single crystal superalloy with trace of La was examined by means of SEM,EDS and *** show the addition of La decreases the segregation of elements and increases the amount ofγ/γ′eutectics of the as-cast alloy,and in the interdendritic region,the growth of eutectics is accompanied by the growth of strip clusters composed of Ni_(5)La and Ni_(3)*** the La content in the alloy increases,the proportion of Ni_(5)La in the cluster *** heat treatment,incipient melting occurs in the cluster regions,leading to an increase in microporosity compared to the original as-cast ***,the heat treatment alters the shape of the clusters from a strip morphology to an elliptical one,and it changes their composition from Ni_(5)La and Ni_(3)Ta to a combination of Ni_(5)La,Ni_(3)Ta,and MC carbides.

关键词： single crystal superalloy lanthanum microstructure heat-treatment precipitate phase

AZD1775 synergizes with SLC7A11 inhibition to promote ferroptosis

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Science China(Life Sciences) 2025年第1期68卷 204-218页

作者： Chen Xiong hong Ling Yingdan Huang Hanzhi Dong Bangxiang xie Qian Hao Xiang Zhou Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences Fudan UniversityShanghai 200032China Department of Oncology Shanghai Medical CollegeFudan UniversityShanghai 200032China Department of Breast Surgery Fudan University Shanghai Cancer CenterFudan UniversityShanghai 200032China Department of Oncology First Affiliated Hospital of Nanchang UniversityNanchang 330006China Beijing Institute of Hepatology Beijing Youan HospitalCapital Medical UniversityBeijing 100069China Beijing Engineering Research Center for Precision Medicine and Transformation of Hepatitis and Liver Cancer Beijing 100069China Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer CenterFudan UniversityShanghai 200032China Shanghai Key Laboratory of Medical Epigenetics International Co-laboratory of Medical Epigenetics and Metabolism(Ministry of Science and Technology)Institutes of Biomedical SciencesFudan UniversityShanghai 200032China

Tumor suppressor p53-mediated cell cycle arrest and DNA damage repair may exert cytoprotective effects against cancer therapies,including WEE1 *** that p53 activation can also lead to multiple types of cell death,the role of this tumor suppressor in WEE1 inhibitor-based therapies remains *** this study,we reported that nucleolar stress-mediated p53 activation enhanced the WEE1 inhibitor AZD1775-induced ferroptosis to suppress lung cancer *** findings showed that AZD1775 promoted ferroptosis by blocking cystine uptake,an action similar to that of ***,inhibition of WEE1 by the WEE1 inhibitors or siRNAs induced compensatory upregulation of SLC7A11,which conferred resistance to ***,AZD1775 prevented the enrichment of H3K9me3,a histone marker of transcriptional repression,on the SLC7A11 promoter by repressing the expression of the histone methyltransferase SETDB1,thereby enhancing NRF2-mediated SLC7A11 *** finding was also validated using the H3K9me3 inhibitor ***,we found that the nucleolar stress-inducing agent Actinomycin D(Act.D)inhibited SLC7A11 expression by activating p53,thus augmenting AZD1775-induced ***,the combination of AZD1775 and Act.D synergistically suppressed wild-type p53-harboring lung cancer cell growth both in vitro and in ***,our study demonstrates that AZD1775 promotes ferroptosis by targeting cystine uptake but also mediates the adaptive activation of SLC7A11 through the WEE1-SETDB1 cascade and NRF2-induced transcription,and inhibition of SLC7A11 by Act.D boosts the anti-tumor efficacy of AZD1775 by enhancing ferroptosis in cancers with wild-type p53.

关键词： p53 NRF2 SLC7A11 WEE1 AZD1775 ferroptosis nucleolar stress

Fabrication of Ni-Zn spinel ferrite with superior magnetic performance from electric arc furnace dust and iron scale

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Journal of Iron and Steel Research International 2025年第1期32卷 105-114页

作者： Yang Li Wei-zhe jie Chang Chen Yi Su Wu Zhou Hua Zhang hong-wei Ni The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan430081HubeiChina The Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan430081HubeiChina Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan430081HubeiChina

The Ni-ZnFe_(2)O_(4)(NixZn_(1-x)Fe_(2)O_(4),x=0.4-0.7)spinel was synthesized using Zn2+extracted from electric arc furnace dust(EAFD),nickel chloride hexahydrate,and Fe^(3+)extracted from iron scale as raw *** zinc was selectively extracted from EAFD using CaO roasting followed by NH_(4)Cl solution *** ferric ion was leached from iron scale using HCl solution as acid *** experimental results demonstrate a high level of efficiency in the extraction of zinc,with a rate of 97.5%,and the leaching rate of ferric ion is 96.89%.The composition of the leaching solution is primary zinc and iron with low calcium,which is beneficial to the preparation of spinel *** influence of Ni content(x)and calcination temperature on the synthesis and magnetic properties of NixZn_(1-x)Fe_(2)O_(4)compounds was investigated by X-ray diffraction,scanning electron microscopy,and vibrating sample *** results revealed that both Ni content and calcination temperature significantly affect the synthesis and magnetic properties of spinel NixZn_(1-x)Fe_(2)O_(4).Under the conditions of Ni content set at x=0.6,calcination temperature of 1100℃,and a duration of 2 h,a spinel NixZn_(1-x)Fe_(2)O_(4)with high saturation magnetization(Ms=65.7 A m2 kg-1)and low coercivity(Hc=0.056 A m^(-1))was obtained.

关键词： Electric furnace arc dust Iron scale Spinel ferrite Magnetic performance Calcination temperature