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Primary squamous cell carcinoma of pancreas diagnosed by EUS-FNA:A case report

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World Journal of Gastroenterology 2009年第34期15卷 4343-4345页

作者： Larry Hin Lai Joseph Romagnuolo David Adams jack yang Institute of Digestive Disease The Chinese University of Hong KongPrince of Wales Hospital Digestive Disease Center Medical University of South Carolina Department of Pathology and Laboratory Medicine Medical University of South Carolina

Squamous cell carcinoma of the pancreas has been sparsely described since the 1940s,and generally has a poor ***,we present a case of primary squamous cell carcinoma of the pancreas with liver metastasis,both confirmed by endoscopic ultrasoundguided fine needle aspiration(EUS-FNA).To the best of our knowledge,this is the first case report in literature utilizing EUS-FNA for a cell-type specific diagnosis of primary pancreatic squamous cell carcinoma with a liver metastasis.

关键词： Computed tomography Cytology Endoscopic ultrasound

Insight into the growth behaviors of MoS_(2)nanograins influenced by step edges and atomic structure of the substrate

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Nano Research 2022年第8期15卷 7646-7654页

作者： Shuangyue Wang Ni yang Mengyao Li Ji Zhang Ashraful Azam Yin Yao Xiaotao Zu Liang Qiao Peter Reece John Stride jack yang Sean Li School of Materials Science and Engineering UNSW SydneyNSW 2052Australia School of Physics University of Electronic Science and Technology of ChinaChengdu 610054China School of Physics UNSW SydneyNSW 2052Australia School of Chemistry UNSW SydneyNSW 2052Australia

The step edges and intrinsic atomic structure of single-crystal substrate play a critical role in determining the growth pathways of transition metal dichalcogenide(TMD)grains,particularly whether the TMDs will grow into wafer-scale single-crystal or anisotropic ***,we investigate the growth behaviours of the MoS_(2)nanograins on(0001)and()sapphire *** one hand,the step edges formed on the(0001)surface after thermal treatment are found to promote the macroscopic aggregation of MoS_(2)nanograins and to form unidirectional large triangular islands along with thesteps in the annealing process,while on the pristine(0001)surface,the MoS_(2)nanograins grow into a random network-like ***,oxygen treatment on the substrate can further enhance the growth of MoS_(2)*** electron microscopy and fast Fourier transform patterns reveal that the substrate could modulate the orientation of MoS_(2)nanograins during their growing *** the other hand,the MoS_(2)nanograins on the surface could self-assemble into one-dimensional nanoribbons due to the strong structural anisotropy of the *** addition,the ratio of Raman intensities for peaks that correspond to the and A1g phonon modes shows a linear relationship with the grain size due to the change of the“phonon confinement”.Moreover,new peaks located at 226 and 280 cm−1 can be observed in the off-resonant and resonant Raman spectra for the MoS_(2)nanograin samples,respectively,which can be attributed to the scatterings from the edges of as-fabricated MoS_(2)nanostructures.

关键词： MoS_(2)nanograins growth behaviors step edges atomic structure Raman spectra evolution UV-vis absorption

Advanced Strategies for Stabilizing Single‑Atom Catalysts for Energy Storage and Conversion

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Electrochemical Energy Reviews 2022年第3期5卷 1-41页

作者： Wenxian Li Zehao Guo jack yang Ying Li Xueliang Sun Haiyong He Sean Li Jiujun Zhang Institute of Materials Shanghai UniversityShanghai 200072China UNSW Materials and Manufacturing Futures Institute School of Materials Science and EngineeringThe University of New South WalesSydneyNSW 2052Australia College of Sciences Institute for Sustainable EnergyShanghai UniversityShanghai 200444China Department of Mechanical and Materials Engineering University of Western OntarioLondonON N6A 5B9Canada Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201ZhejiangChina

Well-defined atomically dispersed metal catalysts(or single-atom catalysts)have been widely studied to fundamentally under-stand their catalytic mechanisms,improve the catalytic efficiency,increase the abundance of active components,enhance the catalyst utilization,and develop cost-effective catalysts to effectively reduce the usage of noble *** single-atom cata-lysts have relatively higher selectivity and catalytic activity with maximum atom utilization due to their unique characteristics of high metal dispersion and a low-coordination ***,freestanding single atoms are thermodynamically unstable,such that during synthesis and catalytic reactions,they inevitably tend to agglomerate to reduce the system energy associated with their large surface ***,developing innovative strategies to stabilize single-atom catalysts,including mass-separated soft landing,one-pot pyrolysis,co-precipitation,impregnation,atomic layer deposition,and organometallic complexation,is critically *** types of supporting materials,including polymers,have been commonly used to stabilize single atoms in these fabrication ***,we review the stabilization strategies of single-atom catalyst,including different synthesis methods,specific metals and carriers,specific catalytic reactions,and their advantages and *** particular,this review focuses on the application of polymers in the synthesis and stabilization of single-atom catalysts,including their functions as carriers for metal single atoms,synthetic templates,encapsulation agents,and protection agents during the fabrication *** technical challenges that are currently faced by single-atom catalysts are summarized,and perspectives related to future research directions including catalytic mechanisms,enhancement of the catalyst loading content,and large-scale implementation are proposed to realize their practical applications.

关键词： Single-atom catalyst Stabilization strategy Coordination environment Polymer Encapsulation agent Protection agent

Molybdenum disulfide(MoS2)-based electrocatalysts for hydrogen evolution reaction:From mechanism to manipulation

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Journal of Energy Chemistry 2022年第11期31卷 45-71,I0003页

作者： Yao Xu Riyue Ge jack yang Jiancheng Li Sean Li Ying Li Jiujun Zhang Jing Feng Bin Liu Wenxian Li Institute of Materials School of Materials Science and EngineeringShanghai UniversityShanghai 200444China School of Materials Science and Engineering University of New South WalesSydney NSw 2052Australia Materials and Manufacturing Futures Institute University of NewSouthWalesSydney NSW2052Australia School of Materials Science and Engineering Shanghai UniversityShanghai 200444China InstituteforSustainable Energy Shanghai UniversityShanghai 200444China Collge of Materials Science and Engineering Fuzhou UniversityFuzhou 350108FujianChina Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093YunnanChina

Molybdenum disulfide(MoS_(2))-based materials as the non-noble metal catalysts have displayed the potential capability to drive electrocatalytic hydrogen evolution reaction(HER)for green hydrogen production along with their intrinsic activity,tunable electronic properties,low cost,and abundance reserves,which have attracted intensive attention as alternatives to the low-abundance and high-cost platinum-based ***,their insufficient catalytic HER activities and stability are the major challenges for them to become practically ***,the MoS_(2)-based electrocatalysts for HER are comprehensively reviewed to explain the fundamental science behind the manipulations of the crystal structure,microstructure,surface,and interface of MoS_(2) in order to enhance its catalytic performance through changing the electrical conductivity,the number of active sites,surface wettability,and the Gibbs free energy for hydrogen adsorption(ΔGH).Recent studies in surface/interface engineering,such as phase engineering,defect engineering,morphology design,and heterostructure construction,are analyzed to reveal the state-of-the-art strategies for designing and preparing the cost-effective and highperformance MoS_(2)-based catalysts through optimizing the charge transfer,surface-active sites,ΔGH,and surface ***,the perspectives,challenges,and future research directions of HER electrocatalysis are also given to facilitate the further research and development of HER catalysts.

关键词： Surface/interface engineering Hydrogen evolution reaction Molybdenum disulfide Mechanisms

Carbon-based bifunctional electrocatalysts for oxygen reduction and oxygen evolution reactions:Optimization strategies and mechanistic analysis

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Journal of Energy Chemistry 2022年第8期31卷 234-265,I0008页

作者： Huidong Xu jack yang Riyue Ge Jiujun Zhang Ying Li Mingyuan Zhu Liming Dai Sean Li Wenxian Li Institute of Materials Shanghai University School of Materials Science and Engineering UNSW Materials and Manufacturing Futures InstituteUniversity of New South Wales Institute for Sustainable Energy Shanghai University School of Chemical Engineering University of New South Wales Shanghai Key Laboratory of High Temperature Superconductors

Electrocatalysts are one of the essential components for the devices of high-efficiency green energy storage and conversion,such as metal-air cells,fuel cells,and water electrolysis *** catalysts made from noble metals possess high catalytic performance in both oxygen reduction reaction(ORR)and oxygen evolution reaction(OER),their scarcity and expensiveness significantly limit large-scale *** this regard,metal-free/non-noble metal carbon-based catalysts have become competitive alternatives to replace catalysts made of noble ***,low catalytic ORR/OER performance is the challenge of carbon-based catalysts for the commercial applications of metal-air *** solve the problem of poor catalytic performance,two strategies have been proposed:(1)controlling the microstructure of the catalysts to expose more active sites as the channels of rapid mass and electron transfer;and(2)reducing the reaction energy barrier by optimizing the electronic structures of the catalysts via surface ***,we review different types of bifunctional ORR/OER electrocatalysts with the activated surface *** focus on how the challenge can be overcome with different methods of material synthesis,structural and surface characterization,performance validation/optimization,to outline the principles of surface modifications behind catalyst *** particular,we provide critical analysis in the challenges that we are facing in structural design and surface engineering of bifunctional ORR/OER catalysts and indicate the possible solution for these problems,providing the society with clearer ideas on the practical prospects of noble-metal-free electrocatalysts for their future applications.

关键词： Electrocatalyst Bifunctionality Oxygen reduction Oxygen evolution Carbons transition metals Surface engineering Microstructure

国际货币体系改革新思路弹性金本位和二元货币结构

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商业经济研究 2015年第7期 80-82页

作者： Michael Wang jack yang BBY(nz)Ltd New Zealand 3268 The university of Waikato New Zealand 3204

以银行存款形式进行货币的保值和储备是中低收入阶层最主要的财富积累手段。如何保护这部分财富并使其长期保持原有购买力是当今中国极具经济民生意义的政策考虑。以美元为储备的国际货币体系有两个结构性的矛盾和流动性的鲁夫效应缺陷... 详细信息

以银行存款形式进行货币的保值和储备是中低收入阶层最主要的财富积累手段。如何保护这部分财富并使其长期保持原有购买力是当今中国极具经济民生意义的政策考虑。以美元为储备的国际货币体系有两个结构性的矛盾和流动性的鲁夫效应缺陷:一是单一国家主权货币作为国际储备货币所带来的矛盾(特里芬矛盾),二是货币所应当具备的保值功能和由信贷扩张所造成的货币贬值的矛盾。为此本文提出了建立以弹性金本位为核心的二元货币体系的构想,指出这种双规货币制度是使储蓄存款长期保持原有购买力的重要保障,是缩小贫富差距的基础性解决方案之一,是国际货币体系改革的重大方案选择。

关键词：货币体系改革弹性金本位二元货币结构

Dosimetric Comparisons of Lung SBRT with Multiple Metastases by Two Advanced Planning Systems

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International Journal of Medical Physics, Clinical Engineering and Radiation Oncology 2014年第4期3卷 252-261页

作者： Ye Zhang Yie Chen Jie Qiu jack yang Department of Radiation Oncology Cancer Institute and Hospital Chinese Academy Medical Sciences (CICAMS) Beijing China Department of Radiation Oncology Monmouth Medical Center Long Branch USA Department of Radiation Oncology Beijing Union Hospital Beijing China

Purpose: To evaluate planning quality of Stereotactic body Radiotherapy (SBRT) with multiple lungmetastases generated by the Pinnacle and Tomotherapy planning systems, respectively. Methods and Materials: Nine randomly selected patients diagnosed with non-small cell lung carcinoma with multiple lesions were planned with Philips Pinnacle (version 9.2, Fitchburg, WI) and Tomotherapy (version 4.2, Madison, WI), respectively. Both coplanar and non-coplanar IMRT plans were generated on Pinnacle system. A total dose of 60 Gy was prescribed to cover 95% of Planning Target Volume (PTV) in 3 fractions based on the RTOG0236 protocol prescription [1]. All plans with single isocenter setting were used for multiple lesions planning. A set of nine static beams were used for Pinnacle plansusing Direct Machine Parameters Optimization (DMPO) algorithm of RTOT0236 dose constraints. Planning outcomes such as minimum and mean doses, V95, D95 (95% of target volume receivesprescription dose), D5, and D1 to PTV, maximum dose to heart, esophagus, cord, trachea, brachial plexus, rib, chest wall, and liver, mean dose toliver, total lung, right and left lung, volume of chest wall receives 30 Gy, volume of lungs receives 5 Gy and 20 Gy (V5 and V20), conformity index (CI) and heterogeneity index (HI) were all reported for evaluation. Results: Mean volume of PTV was 37.77 ± 23.4 cm3. D95 of PTV with Tomotherapy, coplanar, non-coplanar plan was 60.2 ± 0.3 Gy, 58.6 ± 1.2 Gy, and 59.1 ± 0.7 Gy, respectively. Mean dose to PTV was lower for Tomotherapy (p 5 (p 1 (p = 0.001). CI was higher with Tomotherapyplans (p p 5 which needs more attention for toxicity analysis.

关键词： SBRT DMPO Tomotherapy Lung IMRT

Systematic Analysis of the ArcCheck Diode Arrays for Tomotherapy Delivery Verification

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International Journal of Medical Physics, Clinical Engineering and Radiation Oncology 2014年第4期3卷 218-225页

作者： Qi Yue Jimei Duan Rongqing Li jack yang Department of Radiation Oncology First Affiliated Hospital of Kunming Medical University Kunming China Department of Radiation Oncology Monmouth Medical Center Long Branch NJ USA

Objective: The aim of this study was to evaluate the functional characteristics of ArcCheck? array detectors and the application for Tomotherapy IMRT plan verification. Method and Materials: The basic character of the ArcCheck applying on Tomotherapy system was tested. The diode testing procedures included the followings: The short term reproducibility, linearity, dose rate dependence, the profile measurement compared to ion chamber. The effect of insert on gamma passing rate was also studied. A total number of 602 Tomotherapy Delivery Quality Assurance (DQA) plans were retrospectively analyzed to obtain the action limit results with statistical significance evaluation. Results: The short term reproducibility, linearity, dose rate dependence, profile to ion chamber correlation and clinical application were all compared with satisfactory outcome with this device. If anterior diode points were properly calibrated with machine absolute output, then there was no significant difference between the ArcCheck phantom with and without insert on gamma passing rate. The average passing rate was 97.5% and the recommend action level was established at 92% based on the 602 patients’ clinical data with 95% confidence level criteria. Conclusion: This comprehensive study shows that ArcCheck is an accurate and efficient device for quality assurance of Tomotherapy with remarkable consistency of 3D volume analysis of arc therapy.

关键词： ArcCheck Gamma Passing Rate Tomotherapy

前列腺癌调强放疗计划等效均匀剂量法优化研究

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中华放射肿瘤学杂志 2013年第2期22卷 143-146页

作者：廖雄飞 jack yang 黎杰王培四川省肿瘤医院放疗科成都610041 美国蒙默思郡医学中心肿瘤中心放疗科新泽西07740

目的评价等效均匀剂量（EUD）优化法在前列腺癌调强放疗计划优化中的应用价值。方法随机抽取10例已接受调强放疗的前列腺癌病例，其治疗计划均基于剂量一体积（DV）优化法得到。将直肠、膀胱、小肠的约束条件改为EUD约束，其他优化条件... 详细信息

目的评价等效均匀剂量（EUD）优化法在前列腺癌调强放疗计划优化中的应用价值。方法随机抽取10例已接受调强放疗的前列腺癌病例，其治疗计划均基于剂量一体积（DV）优化法得到。将直肠、膀胱、小肠的约束条件改为EUD约束，其他优化条件不变。比较新旧治疗计划的剂量学差异并行配对t检验。结果EUD优化比DV优化对靶区的适形度好（1．00±0．04：0．94±0．04，t=3．80，P=0．04），对危及器官降低了直肠D53（24．4±2．7：25．5±2．6，t=一3．82，P=0．004）、D30（34．1±4．3：39．1±2．1，t=一3．80，P=0．004）、Dl。。3（51．4±1．0：51．8±0．9，t=一2．42，P=0．039）和膀胱V10（92．2±6．2：99．4±1．1，t=一4．28，P：0．002）、V20（70．7±5．7：78．7±6．3，t=一3．10，P=0．013），以及小肠V100（62．2±30．2：74．7±30．0，t=一4．18，P=0．002）、V20（34．3±26．3：46．5±30．9，t=一5．46，P=0．000）、V30（17．1±17．0：25．1±22．6，t=一3．52，P=0．007）、V40（10．6±11．5：15．6±16．1，t=一2．64，P=0．030）。结论EUD优化对靶区适形度好，并能有效降低直肠、膀胱及小肠受照剂量。

关键词：等效均匀剂量放疗计划优化前列腺肿瘤调强放射疗法