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Penile aseptic abscess in the cavernous body at the base of the penis:a case report

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Frontiers of Nursing 2021年第1期8卷 83-89页

作者： Man-Cheng Xia ke-qiang yin Yu-Sheng Wang Jia-Wei Chen Xiao-Dong Bian Wei-Bing Shuang First Clinical Medical College Shanxi Medical UniversityTaiyuanShanxi 030001China Department of Urology First Hospital of Shanxi Medical UniversityTaiyuanShanxi 030001China

We report a case of aseptic abscess in the cavernous body at the base of the *** our clinical observation,the patient underwent puncture and drainage of the corpus cavernosum abscess,followed by surgical resection of the abscess wall,with the incisions closed layer by layer with primary *** addition,we paid attention to strengthening the postoperative management by using elastic bandages to wrap the penis intermittently to prevent edema;the incision would not be covered with dressings from the third day after the operation,so as to keep the incision site dry in an open *** the period of indwelling of the catheter after the operation,we noticed the care of the external orifice of the urethra to reduce the occurrence of catheter-related ***,the patient was diagnosed with a penile aseptic abscess in the cavernous body at the base of the *** patient recovered well after surgery and was discharged 1 week *** 1.5 years after the operation,the shape of the penis returned to normal,and the erectile function was *** was seen that good nursing concept is of great help for prognosis,which could avoid infection and edema,and is conducive to wound healing.

关键词： penis aseptic abscess puncture and drainage primary suture nursing

Electrocatalytic nitrite reduction to ammonia on isolated bismuth alloyed ruthenium

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Journal of Energy Chemistry 2025年第1期100卷 369-376页

作者： Shiyao Shang Fuzhou Wang Zeyi Sun Chaofan qiang ke Chu School of Materials Science and Engineering Lanzhou Jiaotong University

Electrochemical reduction of NO2-to NH3（NO2-RR） is recognized as an appealing approach for achieving renewable NH3synthesis and waste ***,we report isolated Bi alloyed Ru （Bi1Ru） as an efficient NO2-RR *** calculations and in situ electrochemical measurements reveal the creation of Bi1-Ru dual sites which can remarkably promote NO2-activation and suppress proton adsorption,while accelerating the NO2-RR protonation energetics to render a high NO2--to-NH3conversion ***,Bi1Ru assembled in a flow cell delivers an NH3yield rate of 1901.4μmol h-1cm-2and an NH3-Faradaic efficiency of 94.3%at an industrial-level current density of 324.3 mA *** study offers new perspectives for designing and constructing p-block single-atom alloys as robust and high-current-density NO2-RR catalysts toward the ammonia electrosynthesis.

关键词： Ammonia

Investigation of bubbles escape behavior from low basicity mold flux for high-Mn high-Al steels using 3D X-ray microscope

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 102-110页

作者： qiang Liu Xiang Li Shen Du Ming Gao Yanbin yin Jiongming Zhang State key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

During the continuous casting process of high-Mn high-Al steels,various types of gases such as Ar need to escape through the top of the *** which,the behavior of bubbles traversing the liquid slag serves as a restrictive link,closely associated with viscosity and the thickness of liquid *** contrast to two-dimensional surface observation,three-dimensional(3D)analysis method can offer a more intuitive,accurate,and comprehensive ***,this study employs a 3D X-ray microscope(3D-XRM)to obtained spatial distribution and 3D morphological characteristics of residual bubbles in mold flux under different basicity of liquid slag,different temperatures,and different holding *** results indicate that as basicity of slag increases from 0.52 to 1.03,temperature increases from 1423 to 1573 K,the viscosity of slag decreases,the floating rate of bubbles *** addition,when holding time increases from 10 to 30 s,the bubbles floating distance increases,and the volume fraction and average equivalent sphere diameter of the bubbles solidified in the mold flux gradually *** one word,increasing the basicity,temperature,and holding time leading to an increase in the removal rate of bubbles especially for the *** findings of bubbles escape behavior provide valuable insights into optimizing low basicity mold flux for high-Mn high-Al steels.

关键词： mold flux low basicity bubbles three-dimensional X-ray microscope viscosity

Effect of Ti Additions on Mechanical and Thermodynamic Properties of W-Ti Alloys: A First-principles Study

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 246-257页

作者： ZHANG Jian NIE Wei HUANG Jin ZHU ke LIU Ruxia ZHANG Ruizhi LUO Guoqiang SHEN qiang State key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Institute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China

The mechanical and thermodynamic properties of W-Ti alloys(including W_(15)Ti_(1),W_(14)Ti_(2),W_(12)Ti_(4) and W_(8)Ti_(8) alloys)were investigated by the first-principles approach based on density functional *** results indicate that W-Ti alloys except W_(8)Ti_(8) are thermodynamically *** modulus and hardness of W-Ti alloys are smaller than those of pure tungsten and gradually decrease with increasing Ti ***,their B/G ratios and Poisson's ratios exceed those of pure tungsten,suggesting that the introduction of Ti decreases the mechanical strength while enhancing the ductility of W-Ti *** thermal expansion coefficients for W-Ti alloys all surpass those of pure tungsten,indicating that the introduction of titanium exacerbates the thermal expansion behavior of W-Ti ***,elevated pressure has the capacity to suppress the thermal expansion tendencies in titanium-doped tungsten *** study offers theoretical insights for the design of nuclear materials by exploring the mechanical and thermodynamic properties of W-Ti alloys.

关键词： first-principles mechanical properties thermodynamic properties tungsten-titanium alloys

Nanoscale and hollow inorganic sulfide@porous organic network doped intelligent hydrogels for accelerating diabetes wound therapeutics

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Science China Chemistry 2025年

作者： Yanhong Li qiang Zhang Quanbo Wang Junping Wang Xiaomei Zhang Caixia yin School of Chemistry and Chemical Engineering Shandong University key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education Shanxi University

Diabetic wound healing remains a major challenge due to the excess hyperglycemia microenvironment,massively bacterial infections,macrophage dysfunction,and persistent *** comprehensively solve these problems,novel multifunctional materials are highly ***,a versatile and intelligent hydrogel (Cu2S@FePPOPTPM@GOx@Gel) is ***2S@FePPOPTPM@GOx with hollow morphology and controllable size was rationally designed and fabricated by using Cu2S nanocubes as a template,followed by in situ growth of FePPOPTPMand loading glucose oxidase （GOx）,*** infection occurs,the Schiff base bonds in Cu2S@FePPOPTPM@GOx@Gel can controllably release Cu2S@FePPOPTPM@GOx based on its excellent dynamic pH-responsiveness,thereby synergically reducing blood glucose levels and killing bacteria achieved relying on the excellent catalytic activity of GOx towards glucose and its promoted peroxidelike activity of *** experiments on diabetic wound model in vivo demonstrated that Cu2S@FePPOPTPM@GOx@Gel promoted wound healing and skin regeneration,which was attributed to its antibacterial properties,alleviating inflammation,stimulating vascular regeneration,and encouraging M2 polarization of *** work provides a novel strategy for the construction of a microenvironment-responsive and antibiotics-free drug delivery platform to treat diabetic wounds,as well as broad prospects of nanomaterials in the clinical treatment of chronic wounds.

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Human-induced pluripotent stem cell-derived neural stem cell exosomes improve blood-brain barrier function after intracerebral hemorrhage by activating astrocytes via PI3K/AKT/MCP-1 axis

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Neural Regeneration Research 2025年第2期20卷 518-532页

作者： Conglin Wang Fangyuan Cheng Zhaoli Han Bo Yan Pan Liao Zhenyu yin Xintong Ge Dai Li Rongrong Zhong qiang Liu Fanglian Chen Ping Lei Department of Geriatrics Tianjin Medical University General HospitalTianjinChina School of Medicine Nankai UniversityTianjinChina Tianjin Neurological Institute TianjinChina

Cerebral edema caused by blood-brain barrier injury after intracerebral hemorrhage is an important factor leading to poor ***-induced pluripotent stem cell-derived neural stem cell exosomes(hiPSC-NSC-Exos)have shown potential for brain injury repair in central nervous system *** this study,we explored the impact of hiPSC-NSC-Exos on blood-brain barrier preservation and the underlying *** results indicated that intranasal delivery of hiPSC-NSC-Exos mitigated neurological deficits,enhanced blood-brain barrier integrity,and reduced leukocyte infiltration in a mouse model of intracerebral ***,hiPSC-NSC-Exos decreased immune cell infiltration,activated astrocytes,and decreased the secretion of inflammatory cytokines like monocyte chemoattractant protein-1,macrophage inflammatory protein-1α,and tumor necrosis factor-αpost-intracerebral hemorrhage,thereby improving the inflammatory *** sequencing indicated that hiPSC-NSC-Exo activated the PI3K/AKT signaling pathway in astrocytes and decreased monocyte chemoattractant protein-1 secretion,thereby improving blood-brain barrier *** with the PI3K/AKT inhibitor LY294002 or the monocyte chemoattractant protein-1 neutralizing agent C1142 abolished these *** summary,our findings suggest that hiPSC-NSC-Exos maintains blood-brain barrier integrity,in part by downregulating monocyte chemoattractant protein-1 secretion through activation of the PI3K/AKT signaling pathway in astrocytes.

关键词： AKT astrocyte blood-brain barrier cerebral edema exosomes human-induced pluripotent stem cells intracerebral hemorrhage neural stem cells neuroinflammation PI3K

Contribution of fungal biomass to persistent soil carbon across natural ecosystems

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Science China Earth Sciences 2025年

作者： Xiang WANG Guang-Hui YU Yakov KUZYAKOV Bo-Hao yin Andreas KAPPLER Cong-qiang LIU Bohai Coastal Critical Zone National Observation and Research Station Institute of Surface-Earth System Science School of Earth System Science Tianjin Key Laboratory of Earth Critical Zone Science and Sustainable Development in Bohai Rim Tianjin University Department of Soil Science of Temperate Ecosystems Department of Agricultural Soil Science University of G?ttingen Agro-Technological Institute Peoples Friendship University of Russia (RUDN University) Geomicrobiology Center for Applied Geosciences University of Tübingen Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infection University of Tübingen

Fungi are known to be crucial in the formation and stabilization of soil organic matter through their exudates and dead residues (necromass). Yet, it remains unclear how fungi contribute to the persistence of carbon in soils over millennial scales across biomes. Here, this study fills the knowledge gap by linking fungal carbon stocks with minerals-associated carbon stocks across major biomes. A strong correlation between fungal biomass and reactive mineral-associated carbon stocks in soils across six biomes supports the substantial role of fungi in soil carbon persistence at the global level. High spatial resolution nanoscale secondary ion mass spectrometry revealed that fungi may stabilize carbon by forming organo-mineral associations through their close physical connection to reactive minerals and weathered nanoparticles. We propose a conceptual model that emphasizes the dualistic role of hypha-mineral interactions:(i) fungi accelerate organic matter decomposition by producing reactive oxygen species on the hypha-mineral interfaces, and (ii) fungi stabilize their residues on mineral surfaces, leading to millennial scale persistence of soil C. Concluding, fungi play a fundamental role in ecosystems that extends beyond the decomposition of persistent carbon. They are crucial in stabilizing carbon on mineral surfaces, thereby facilitating the long-term removal of carbon from rapid biotic cycling.

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人工智能在煤矿安全监测中的潜在应用:理论框架与展望

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煤矿现代化 2025年第1期34卷 71-77页

作者：尹强潞安集团司马煤业有限公司山西长治046000

对人工智能在煤矿安全监测中的应用及其未来发展趋势进行了研究与探讨。对传统的煤矿安全监测方法及其局限性进行了总结,详细探究了人工智能在煤矿安全监测方面的应用,特别是在井下监测监控、人员定位和通讯等方面;探讨了人工智能技术... 详细信息

对人工智能在煤矿安全监测中的应用及其未来发展趋势进行了研究与探讨。对传统的煤矿安全监测方法及其局限性进行了总结,详细探究了人工智能在煤矿安全监测方面的应用,特别是在井下监测监控、人员定位和通讯等方面;探讨了人工智能技术在提高煤矿安全性方面的重要性和潜在价值。研究结果表明,人工智能能显著提升煤矿安全监测的效率和准确性,且随着技术的进步和数据质量的提高,人工智能将在提高煤矿安全生产水平、减少事故发生率方面发挥重要作用。

关键词：人工智能煤矿安全监测技术数据分析风险预测

双层黑铬选择性吸收涂层可见光谱光学常数的测定

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太阳能学报 1985年第2期 105-114页

作者：严樟根魏志渊周邦伟陈克强殷志强清华大学

本文讨论了可见光谱范围内双层黑铬选择性吸收涂层（Al+黑铬+Cr2O3）中的金属衬底膜、强吸收膜及减反射膜的光学常数谱n（λ）、κ（λ）及整个涂层的反射率谱R（λ）的测定与数据处理过程。用椭圆偏振光谱仪测定金属膜（Al）、强吸收... 详细信息

本文讨论了可见光谱范围内双层黑铬选择性吸收涂层（Al+黑铬+Cr2O3）中的金属衬底膜、强吸收膜及减反射膜的光学常数谱n（λ）、κ（λ）及整个涂层的反射率谱R（λ）的测定与数据处理过程。用椭圆偏振光谱仪测定金属膜（Al）、强吸收膜（黑铬）的样品椭圆参数谱△（λ）、ψ（λ）;用“分层测试陪片测厚方案”测定各膜层的光学常数谱nt（λ）、κt（λ）,用双入射角法测定膜层厚度d。采用统计试验法进行数据处理,获得它们的n（λ）、κ（λ）谱值,最后计算出整个涂层的反射率谱值R（λ）。其值与用分光光度计实测的R（λ）值吻合。

关键词：黑铬选择性吸收涂层可见光谱光学常数