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Synthesis and blue light-emitting properties of 4,4'-bis(diphenylamino)-quinque(p-phenyl)s

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Chinese Chemical Letters 2007年第7期18卷 823-826页

作者： Zhong Hui Li mo Jun xiong Man Shing Wong Department of Chemistry Sichuan College of Education Chengdu 610041 China West China School of Pharmacy Sichuan University Chengdu 610041 China Department of Chemistry Hong Kong Baptist University Hong Kong China

An excellent organic blue light-emitting diode based on 4,4＇-bis（diphenylamino）-quinque（p-phenylene）s （OPP（5）-NPh） with a maximum luminance of up to 5000 cd/m^2 and a luminanous efficiency of 1.3 cd/A was reported. This diode was made by using a wide band-gap hole-blocking layer, F-TBB instead of PBD in the OLED devices. We attribute the good performance to the one trade-off involved in the use of F-TBB to obtain higher luminance is the increased turn-on voltages and slightly decreased device efficiencies.

关键词： 4,4'-Bis(diphenylamino)-quinque(p-phenylene)s Synthesis Organic light-emitting diode (OLED) Optical properties

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脑卒中全周期康复的思考与策略

中国全科医学 2025年第2期28卷 129-134页

作者：贾杰复旦大学附属华山医院康复医学科上海市200040 福建医科大学附属第一医院福建省福州市350004 国家老年疾病临床医学研究中心(华山) 上海市200040 国家神经疾病医学中心上海市200040 国家区域医疗中心福建省福州市350000

脑卒中后患者常会遗留不同程度功能障碍,从医疗机构返回至社区家庭过程中,需要各级医疗机构配合互动、上下转介,形成良好的全周期康复闭环。目前,脑卒中全周期康复的落地应用正逐步推进,但仍存在一些阻力。本文以脑卒中全周期康复理念... 详细信息

脑卒中后患者常会遗留不同程度功能障碍,从医疗机构返回至社区家庭过程中,需要各级医疗机构配合互动、上下转介,形成良好的全周期康复闭环。目前,脑卒中全周期康复的落地应用正逐步推进,但仍存在一些阻力。本文以脑卒中全周期康复理念为基础,结合脑卒中社区康复发展现状,思考脑卒中全周期康复-社区康复环节的发展,强调“社区拐点康复”的重要意义以及基层社区康复标准建立的必要性,重视脑卒中患者康复的全周期阶段,探讨社区基层康复的发展策略,切实提高脑卒中患者社区及家庭生存质量。

关键词：脑卒中全周期康复社区康复康复标准

Stereoselective Synthesis of Nontethered trans-4 Bis(aziridino)[60]fullerene Derivatives

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Chinese Journal of Chemistry 2023年第18期41卷 2282-2288页

作者： jie xiong Shuang Feng Rufang Peng Bo Jin State Key Laboratory of Environment-friendly Energy Materials Southwest University of Science and TechnologyMianyangSichuan 621010China

Comprehensive Summary,The stereoselective preparation of fullerene bis-adducts through nontethered methods remains difficult due to the significant amount of regioisomers *** trans-4 aziridino[60]fullerenes,C_(60)(NC_(6)H_(4)R)n(n=1 or 2,R=OMe,OEt,OBu),were selectively synthesized even without a catalyst by reacting octabromofullerene with the corresponding *** magnetic resonance spectroscopy,UV-vis spectroscopy,and X-ray structural analysis provided convincing characterization of the compounds.A possible reaction process was proposed to clarify the synthesis of highly regioselective trans-4-bisaziridino[60]*** possible application of these aziridino[60]fullerene derivatives as propellant stabilizers was also explored.

关键词： Fullerene Regioselectivity Mechanism Nitrocellulose Stability

Synergistic regulation of drought-responsive genes by transcription factor OsbZIP23 and histone modification in rice

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Journal of Integrative Plant Biology 2020年第6期62卷 723-729页

作者： Wei Zong Jun Yang jie Fu Lizhong xiong National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China

Thousands of differentially expressed genes(DEGs)have been identified in rice under drought stress ***,the regulatory mechanism of these DEGs remains largely ***,we report an interplay between histone H3K4me3 modification and transcription factor Osb ZIP23 in the regulation of a dehydrin gene cluster under drought stress conditions in *** the H3K4me3 modification level was increased,the dehydrin gene expression levels were increased,and the binding levels of Osb ZIP23 to the promoter of the dehydrin genes were also ***,the H3K4me3 modification and dehydrin gene expression levels were downregulated in the osbzip23 mutant under drought stress *** study uncovers a collaboration between transcription factor and H3K4me3 modification in the regulation of droughtresponsive genes,which will help us to further understand the gene regulation mechanism under stress conditions in plants.

关键词： responsive conditions. drought

Differential distribution of PINK1 and Parkin in the primate brain implies distinct roles

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Neural Regeneration Research 2025年第4期20卷 1124-1134页

作者： Yanting Liu Wei Huang Jiayi Wen Xin xiong Ting Xu Qi Wang Xiusheng Chen Xianxian Zhao Shihua Li Xiaojiang Li Weili Yang Guangdong Key Laboratory of Non-human Primate Research Key Laboratory of CNS Regeneration(Ministry of Education)Guangdong-Hongkong-Macao CNS Regeneration Institute of Jinan UniversityJinan UniversityGuangzhouGuangdong ProvinceChina

The vast majority of in vitro studies have demonstrated that PINK1 phosphorylates Parkin to work together in mitophagy to protect against neuronal ***,it remains largely unclear how PINK1 and Parkin are expressed in mammalian *** has been difficult to address because of the intrinsically low levels of PINK1 and undetectable levels of phosphorylated Parkin in small *** this issue is critical for elucidating the in vivo roles of PINK1 and ***,we showed that the PINK1 kinase is selectively expressed as a truncated form(PINK1–55)in the primate *** the present study,we used multiple antibodies,including our recently developed monoclonal anti-PINK1,to validate the selective expression of PINK1 in the primate *** found that PINK1 was stably expressed in the monkey brain at postnatal and adulthood stages,which is consistent with the findings that depleting PINK1 can cause neuronal loss in developing and adult monkey ***1 was enriched in the membrane-bound fractionations,whereas Parkin was soluble with a distinguishable *** double staining experiments showed that PINK1 and Parkin did not colocalize under physiological conditions in cultured monkey astrocytes,though they did colocalize on mitochondria when the cells were exposed to mitochondrial *** findings suggest that PINK1 and Parkin may have distinct roles beyond their well-known function in mitophagy during mitochondrial damage.

关键词： neurodegeneration Parkin Parkinson’s disease PINK1 subcellular distribution

Association of stent thrombectomy and conventional treatment with neuroprotection, complications, anxiety, and depression in acute ischemic stroke patients

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World Journal of Psychiatry 2025年第1期15卷 72-82页

作者： Kai-jie Yang Jia-Jian Huang Cai-Xia Xuan Department of Neurology Qinzhou Second People's HospitalQinzhou 535000Guangxi Zhuang Autonomous RegionChina

BACKGROUND Acute ischemic stroke(AIS)is an abrupt blood flow cessation to a specific brain region within a vascular zone,causing a subsequent decline in neurological *** thrombectomy is a recently established technique for treating *** provides the benefits of being a relatively simple and safe procedure,capable of partially enhancing a patient’s ***,some patients may experience endothelial damage and recurrent thrombosis,with clinical outcomes that are not always ***,the efficacy of this method remains *** To survey the association of stent thrombectomy vs standard treatment with neurological function protection,complications,and short-term prognosis in patients diagnosed with *** This study assigned 90 patients with AIS to the observation and control groups(n=45 patients)from December 2020 to December *** thrombectomy was conducted in the observation group,whereas routine treatment was provided to the control *** study assessed the therapeutic outcomes of two groups,including a comparison of their neurological function,living ability,anxiety and depression status,plaque area,serum inflammatory factors,serum Smur100βprotein,neuron-specific enolase(NSE),homocysteine(Hcy),and vascular endo-thelial ***,the incidence of complications was calculated and analyzed for each *** The total effective rate of treatment was 77.78%and 95.56%in the control and observation groups,*** 8 weeks of treatment,the scores on the National Institutes of Health Stroke Scale,Hamilton Anxiety Scale,and Hamilton Depression Scale decreased remarkably;the Barthel index increased remarkably,with better improvement effects of the scores in the observation group(P<0.05);total cholesterol,triglyceride,C-reactive protein,and plaque area lessened remarkably,with fewer patients in the observation group(P<0.05);S-100βprotein,NSE,and Hcy levels lessened remarkably,with fewer patients in

关键词： Stent thrombectomy Acute ischemic stroke Neurological function Complications Short-term prognosis

Techno-economic evaluation of oxy-combustion coal-fired power plants

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Chinese Science Bulletin 2011年第31期56卷 3333-3345页

作者： xiong jie ZHAO HaiBo ZHENG ChuGuang State Key Laboratory of Coal Combustion Huazhong University of Science and Technology Wuhan 430074 China

Increasing attention is being paid to the oxycombustion technique of coal-fired power plants because CO 2 produced from fossil fuel combustion can be captured and sequestrated by it. However, there are many questions about the economic properties of the oxy-combustion technique. In this paper, a detailed techno-economic evaluation study was performed on three typical power plants (2 × 300 MW subcritical, 2 × 600 MW supercritical, 2 × 1000 MW ultra supercritical), as conventional air fired and oxycombustion options in China, by utilizing the authoritative data published in 2010 for the design of coal-fired power plants. Techno-economic evaluation models were set up and costs of electricity generation, CO 2 avoidance costs as well as CO 2 capture costs, were calculated. moreover, the effects of CO 2 tax and CO 2 sale price on the economic characteristics of oxycombustion power plants were also considered. Finally, a sensitivity analysis for parameters such as coal sample, coal price, air separation unit price, flue gas treatment unit price, CO 2 capture efficiency, as well as the air excess factor was conducted. The results revealed that: (1) because the oxy-combustion technique has advantages in thermal efficiency, desulfurization efficiency and denitration efficiency, oxy-combustion power plants will reach the economic properties of conventional air fired power plants if, (a) the CO 2 emission is taxed and the high purity CO 2 product can be sold, or (b) there are some policy preferences in financing and coal price for oxy-combustion power plants, or (c) the power consumption and cost of air separation units and flue gas treatment units can be reduced; (2) from subcritical plants to supercritical and finally ultra-supercritical plants, the economics are improving, regardless of whether they are conventional air fired power plants or oxy-combustion power plants.

关键词：技术经济评价富氧燃烧燃煤电厂空气分离装置二氧化碳税二氧化碳排放量氧燃烧技术发电成本

稀土元素Er、Yb和Y掺杂ZrO_(2)的第一性原理研究

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原子与分子物理学报 2025年第1期42卷 156-162页

作者：熊威任浩重庆交通大学航空学院重庆402247 重庆交通大学绿色航空技术研究院重庆401147

氧化锆具有声子能量低,介电常数高和带隙较宽等优良特性,并且立方相的氧化锆(cZrO_(2))透光率高,适合作为上转换发光材料的基质.采用基于密度泛函理论(DFT)的第一性原理平面波赝势法研究了稀土元素Er、Yb和Y掺杂cZrO_(2)的电子结构和光... 详细信息

氧化锆具有声子能量低,介电常数高和带隙较宽等优良特性,并且立方相的氧化锆(cZrO_(2))透光率高,适合作为上转换发光材料的基质.采用基于密度泛函理论(DFT)的第一性原理平面波赝势法研究了稀土元素Er、Yb和Y掺杂cZrO_(2)的电子结构和光学性质.计算结果显示,掺入Y元素后,cZrO_(2)转变为直接带隙材料,继续掺入Er和Yb原子后,费米能级移动到价带内,带隙显著减小.Y和Er混掺后,增强了cZrO_(2)在近红外波段的吸收能力.继续掺入Yb后,cZrO_(2)对近红外波段的吸收能力有了进一步地增加.

关键词：氧化锆第一性原理电子结构光学性质

Computed tomography enterography-based radiomics for assessing mucosal healing in patients with small bowel Crohn's disease

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World Journal of Gastroenterology 2025年第3期31卷 62-72页

作者： Hao Ding Yuan-Yuan Fang Wen-jie Fan Chen-Yu Zhang Shao-Fei Wang Jing Hu Wei Han Qiao Mei Department of Gastroenterology The First Affiliated Hospital of Anhui Medical UniversityHefei 230022Anhui ProvinceChina Department of Radiation Oncology The First Affiliated Hospital of Anhui Medical UniversityHefei 230022Anhui ProvinceChina Department of Gastroenterology Suzhou First People's HospitalSuzhou 234099Anhui ProvinceChina

BACKGROUND Mucosal healing(MH)is the major therapeutic target for Crohn's disease(CD).As the most commonly involved intestinal segment,small bowel(SB)assessment is crucial for CD ***,it poses a significant challenge due to its limited accessibility through conventional endoscopic *** To establish a noninvasive radiomic model based on computed tomography enterography(CTE)for MH assessment in SBCD *** Seventy-three patients diagnosed with SBCD were included and divided into a training cohort(n=55)and a test cohort(n=18).Radiomic features were obtained from CTE images to establish a radiomic *** demographics were analysed to establish a clinical model.A radiomic-clinical nomogram was constructed by combining significant clinical and radiomic *** diagnostic efficacy and clinical benefit were evaluated via receiver operating characteristic(ROC)curve analysis and decision curve analysis(DCA),*** Of the 73 patients enrolled,25 patients achieved *** radiomic-clinical nomogram had an area under the ROC curve of 0.961(95%confidence interval:0.886-1.000)in the training cohort and 0.958(0.877-1.000)in the test cohort and provided superior clinical benefit to either the clinical or radiomic models alone,as demonstrated by *** These results indicate that the CTE-based radiomic-clinical nomogram is a promising imaging biomarker for MH and serves as a potential noninvasive alternative to enteroscopy for MH assessment in SBCD patients.

关键词： Crohn’s disease Computed tomography enterography Mucosal healing Nomogram Radiomics