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| 1 | Latest Progress of the Chinese Meteorological Satellite Program and Core Data Processing Technologies显示文摘In this paper,the latest progress,major achievements and future plans of Chinese meteorological satellites and the core data processing techniques are discussed.First,the latest three FengYun(FY)meteorological satellites(FY-2H,FY-3D,and FY-4A)and their primary objectives are introduced Second,the core image navigation techniques and accuracies of the FY meteorological satellites are elaborated,including the latest geostationary(FY-2/4)and polar-orbit(FY-3)satellites.Third,the radiometric calibration techniques and accuracies of reflective solar bands,thermal infrared bands,and passive microwave bands for FY meteorological satellites are discussed.It also illustrates the latest progress of real-time calibration with the onboard calibration system and validation with different methods,including the vicarious China radiance calibration site calibration,pseudo invariant calibration site calibration,deep convective clouds calibration,and lunar calibration.Fourth,recent progress of meteorological satellite data assimilation applications and quantitative science produce are summarized at length.The main progress is in meteorological satellite data assimilation by using microwave and hyper-spectral infrared sensors in global and regional numerical weather prediction models.Lastly,the latest progress in radiative transfer,absorption and scattering calculations for satellite remote sensing is summarized,and some important research using a new radiative transfer model are illustrated. | Peng ZHANG Qifeng LU Xiuqing HU Songyan GU Lei YANG Min MIN Lin CHEN Na XU Ling Sun Wenguang BAI Gang MA Di XIAN | 2019 | Advances in Atmospheric Sciences2019，36，9： | 26 |
| 2 | Lactic acid in tumor microenvironments causes dysfunction of NKT cells by interfering with mTOR signaling显示文摘Cellular metabolism has been shown to regulate differentiation and function of immune cells.Tumor associated immune cells undergo phenotypic and functional alterations due to the change of cellular metabolism in tumor microenvironments.NKT cells are good candidates for immunotherapies against tumors and have been used in several clinical trials.However,the influences of tumor microenvironments on NKT cell functions remain unclear.In our studies,lactic acid in tumor microenvironments inhibited IFNγ and IL4 productions from NKT cells,and more profound influence on IFNγ was observed.By adjusting the pH of culture medium we further showed that,dysfunction of NKT cells could simply be induced by low extracellular pH.Moreover,low extracellular pH inhibited NKT cell functions by inhibiting mammalian target of rapamycin(mTOR) signaling and nuclear translocation of promyelocytic leukemia zinc-finger(PLZF).Together,our results suggest that tumor acidic microenvironments could interfere with NKT cell functions through metabolic controls. | Di Xie Shasha Zhu Li Bai | 2016 | Science China(Life Sciences)2016，59，12： | 13 |
| 3 | Effectiveness of Auricular Acupressure for Acute Postoperative Pain after Surgery: A Systematic Review and Meta-Analysis显示文摘Objective: To identify the effectiveness of auricular acupressure(AA) in patients with acute postoperative pain after surgery by systematic review. Methods: A search of randomized controlled trials was conducted in 5 English medical electronic databases and 4 Chinese databases. Two reviewers independently retrieved related studies, assessed the methodological quality, and extracted data with a standardized data form. Meta-analyses were performed using all time-points meta-analysis. Results: A total of 26 studies with 1,682 participants were included. Results showed that compared with conventional therapy, AA significantly improved the total effective rate [risk ratio=1.25, 95% confidence interval(CI), 1.13 to 1.37, P<0.0001; heterogeneity: P<0.0001, I^2=85%]. In the subgroup analysis, the results changed in different follow-up time and surgery categories. The pain relief in the AA group might be the most significant at 72 h after surgery(mean difference=–0.85, 95% CI, –1.20 to –0.50, P<0.0001) and in abdominal surgery(mean difference=–1.15, 95% CI, –1.41 to –0.90, P<0.0001). Sensitivity analysis demonstrated that the results of this meta-analysis were stable. No serious adverse effects were recorded. Conclusions: It was recommended to provide AA to patients with acute postoperative pain. However, a more accurate estimate of the effect requires further rigorously designed large-scale and high-quality RCTs for improving acute postoperative pain after surgery. | ZHONG Qin WANG Di BAI Ya-mei DU Shi-zheng SONG Yu-lei ZHU Jing | 2019 | Chinese Journal of Integrative Medicine2019，25，3： | 12 |
| 4 | Comparison between TVDI and CWSI for drought monitoring in the Guanzhong Plain,China显示文摘Temperature vegetation dryness index(TVDI) and crop water stress index(CWSI) are two commonly used remote sensing-based agricultural drought indicators. This study explored the applicability of monthly moderate resolution imaging spectroradiometer(MODIS) normalized difference vegetation index(NDVI) and land surface temperature(LST) data for agricultural drought monitoring in the Guanzhong Plain,China in 2003. The data were processed using TVDI,calculated by parameterizing the relationship between the MODIS NDVI and LST data. We compared the effectiveness of TVDI against CWSI,derived from the MOD16 products,for drought monitoring. In addition,the surface soil moisture and monthly precipitation were collected and used for verification of the results. Results from the study showed that:(1) drought conditions measured by TVDI and CWSI had a number of similarities,which indicated that both CWSI and TVDI can be used for drought monitoring,although they had some discrepancies in the spatiotemporal characteristics of drought intensity of this region; and(2) both standardized precipitation index(SPI) and SM contents at the depth of 10 and 20 cm had better correlations to CWSI than to TVDI,indicating that there were more statistically significant relationships between CWSI and SPI/SM,and that CWSI is a more reliable indicator for assessing and monitoring droughts in this region. | BAI Jian-jun YU Yuan Liping Di | 2017 | Journal of Integrative Agriculture2017，16，2： | 10 |
| 5 | Hard X-ray Imager (HXI) onboard the ASO-S mission显示文摘Hard X-ray Imager(HXI)is one of the three scientific instruments onboard the Advanced Spacebased Solar Observatory(ASO-S)mission,which is proposed for the 25th solar maximum by the Chinese solar community.HXI is designed to investigate the non-thermal high-energy electrons accelerated in solar flares by providing images of solar flaring regions in the energy range from 30 keV to 200 keV.The imaging principle of HXI is based on spatially modulated Fourier synthesis and utilizes about 91 sets of bi-grid sub-collimators and corresponding LaBr3 detectors to obtain Fourier components with a spatial resolution of about 3 arcsec and a time resolution better than 0.5 s.An engineering prototype has been developed and tested to verify the feasibility of design.In this paper,we present background,instrument design and the development and test status of the prototype. | Zhe Zhang Deng-Yi Chen Jian Wu Jin Chang Yi-Ming Hu Yang Su Yan Zhang Jian-Ping Wang Yao-Ming Liang Tao Ma Jian-Hua Guo Ming-Sheng Cai Yong-Qiang Zhang Yong-Yi Huang Xiao-Yan Peng Zong-Bin Tang Xuan Zhao Hong-He Zhou Lian-Guo Wang Jing-Xing Song Miao Ma Guang-Zhou Xu Jian-Feng Yang Di Lu Ying-Hong He Jin-You Tao Xiao-Long Ma Bao-Gang Lv Yan-Ping Bai Cai-Xia Cao Yu Huang Wei-Qun Gan | 2019 | Research in Astronomy and Astrophysics2019，19，11： | 9 |
| 6 | Fluorescence regional integration and differential fluorescence spectroscopy for analysis of structural characteristics and proton binding properties of fulvic acid sub-fractions显示文摘Structural characteristics and proton binding properties of sub-fractions(FA3–FA13) of fulvic acid(FA), eluted stepwise by pyrophosphate buffer were examined by use of fluorescence titration combined with fluorescence regional integration(FRI) and differential fluorescence spectroscopy(DFS). Humic-like(H-L) and fulvic-like(F-L) materials, which accounted for more than 80% of fluorescence response, were dominant in five sub-fractions of FA. Based on FRI analysis, except the response of F-L materials in FA9 and FA13, maximum changes in percent fluorescence response were less than 10% as pH was increased from 2.5 to 11.5.Contents of carboxylic and phenolic groups were compared for fluorescence peaks of FA sub-fractions based on pH-dependent fluorescence derived from DFS. Static quenching was the dominant mechanism for binding of protons by FA sub-fractions. Dissociation constants(p Ka) were calculated by use of results of DFS and the modified Stern-Volmer relationship. The p Kaof H-L, F-L, tryptophan-like and tyrosine-like materials of FA subfractions exhibited ranges of 3.17–4.06, 3.12–3.97, 4.14–4.45 and 4.25–4.76, respectively, for acidic pHs. At basic pHs, values of p Ka for corresponding materials were in ranges of 9.71–10.24, 9.62–10.99, 9.67–10.31 and 9.33–10.28, respectively. At acidic pH, protein-like(P-L)materials had greater affinities for protons than did either H-L or F-L materials. The dicarboxylic and phenolic groups were likely predominant sites of protonation for both H-L and F-L materials at both acidic and basic pHs. Amino acid groups were significant factors during proton binding to protein-like materials of FA sub-fractions at basic pH. | Fanhao Song Fengchang Wu Weiying Feng Zhi Tang John P.Giesy Fei Guo Di Shi Xiaofei Liu Ning Qin Baoshan Xing Yingchen Bai | 2018 | Journal of Environmental Sciences2018，30，12： | 9 |
| 7 | Regression model to estimate flood impact on corn yield using MODIS NDVI and USDA cropland data layer显示文摘Flood events and their impact on crops are extremely significant scientific research issues; however,flood monitoring is an exceedingly complicated process. Flood damages on crops are directly related to yield change,which requires accurate assessment to quantify the damages. Various remote sensing products and indices have been used in the past for this purpose. This paper utilizes the moderate resolution imaging spectroradiometer(MODIS) weekly normalized difference vegetation index(NDVI) product to detect and further quantify flood damages on corn within the major corn producing states in the Midwest region of the US. County-level analyses were performed by taking weighted average of all pure corn pixels(>90%) masked by the United States Department of Agriculture(USDA) Cropland Data Layer(CDL). The NDVI-based time-series difference between flood years and normal year(median of years 2000–2014) was used to detect flood occurrences. To further measure the impact of the flood on corn yield,regression analysis between change in NDVI and change in corn yield as independent and dependent variables respectively was performed for 30 different flooding events within growing seasons of the corn. With the R2 value of 0.85,the model indicates statistically significant linear relation between the NDVI and corn yield. Testing the predictability of the model with 10 new cases,the average relative error of the model was only 4.47%. Furthermore,small error(4.8%) of leave-one-out cross validation(LOOCV) along with smaller statistical error indicators(root mean square error(RMSE),mean absolute error(MAE),and mean bias error(MBE)),further validated the accuracy of the model. Utilizing the linear regression approach,change in NDVI during the growing season of corn appeared to be a good indicator to quantify the yield loss due to flood. Additionally,with the 250 m MODIS-based NDVI,these yield losses can be estimated up to field level. | Ran jay Shrestha Liping Di Eugene G. Yu Lingjun Kang SHAO Yuan-zhen BAI Yu-qi | 2017 | Journal of Integrative Agriculture2017，16，2： | 8 |
| 8 | Focal adhesion protein Kindlin-2 regulates bone homeostasis in mice显示文摘Our recent studies demonstrate that the focal adhesion protein Kindlin-2 is critical for chondrogenesis and early skeletal development. Here, we show that deleting Kindlin-2 from osteoblasts using the 2.3-kb mouse Col1 a1-Cre transgene minimally impacts bone mass in mice, but deleting Kindlin-2 using the 10-kb mouse Dmp1-Cre transgene, which targets osteocytes and mature osteoblasts, results in striking osteopenia in mice. Kindlin-2 loss reduces the osteoblastic population but increases the osteoclastic and adipocytic populations in the bone microenvironment. Kindlin-2 loss upregulates sclerostin in osteocytes,downregulates β-catenin in osteoblasts, and inhibits osteoblast formation and differentiation in vitro and in vivo. Upregulation ofβ-catenin in the mutant cells reverses the osteopenia induced by Kindlin-2 deficiency. Kindlin-2 loss additionally increases the expression of RANKL in osteocytes and increases osteoclast formation and bone resorption. Kindlin-2 deletion in osteocytes promotes osteoclast formation in osteocyte/bone marrow monocyte cocultures, which is significantly blocked by an anti-RANKLneutralizing antibody. Finally, Kindlin-2 loss increases osteocyte apoptosis and impairs osteocyte spreading and dendrite formation.Thus, we demonstrate an important role of Kindlin-2 in the regulation of bone homeostasis and provide a potential target for the treatment of metabolic bone diseases. | Huiling Cao Qinnan Yan Dong Wang Yumei Lai Bo Zhou Qi Zhang Wenfei Jin Simin Lin Yiming Lei Liting Ma Yuxi Guo Yishu Wang Yilin Wang Xiaochun Bai Chuanju Liu Jian QFeng Chuanyue Wu Di Chen Xu Cao Guozhi Xiao | 2020 | Bone Research2020，8，1： | 8 |
| 9 | Influence of IFNα-2b and BCG on the release of TNF and IL-1 by Kupffer cells in rats with hepatoma显示文摘INTRODUCTIONKupffer cells are residential macrophages in the liver ,which play a critical role in the maintenance of normal liver function and in immunal surveilance of hepatocellular carcinoma (HCC) and other cancers[1].The biological immune modulants have cancers[2].In our previous studies ,the combined use of biological immune modulants showed better dffects . | Xian Yong Bai~1 Xiu Hong Jia~2 Ling Zhong Cheng~3 Yun Di Gu~3 ~1Department of Histology and Embryology,Binzhou Medical College,Binzhou 256603,Shandong Province,China ~2Departrnent of Pediatrics,Binzhou Medical College,Binzhou 256603,Shandong Province,China ~3Department of Histology and Embryology,Shanghai Medical University,Shanghai 200032,ChinaDr.Xian Yong Bai graduated from the Shanghai Medical University as a postgraduate in 1995,Professor of Histology and Embryology,specialized in hepatic tumor immunology,having 36 papers published. | 2001 | World Journal of Gastroenterology2001，7，3： | 7 |
| 10 | 激光选区熔化设备及生物医学金属材料的研究与应用进展(英文)显示文摘本文主要介绍了华南理工大学(SCUT)在激光选区熔化(SLM)成型设备以及医用金属材料SLM成型的基础研究与应用的最新成果。首先,采用DiMetal-100设备研究316L不锈钢、CoCrMo与Ti6Al4V三种医用金属粉末SLM成型的工艺参数、微观组织和力学性能。其次,详细介绍了SLM成型316L不锈钢在个性化舌侧正畸托槽和手术导板的应用,SLM成型CoCrMo在膝关节假体和牙冠牙桥的应用,以及SLM成型Ti6Al4V在骨盆骨折接骨板和个性化颅骨修复体方面的研究成果。最后,介绍了SCUT在SLM技术方面的发展方向和研究计划,具体包括实现新型多孔结构的SLM直接成型、实现多种材料SLM一次成型、实现SLM与减材复合成型、增加SLM设备的负反馈系统以及开发陶瓷和新型金属的SLM成型工艺。总结:SCUT对SLM设备及其医学应用进行了长期深入的研究,研究了医用金属材料316L不锈钢、CoCrMo合金以及Ti6Al4V合金的SLM成型工艺和微观组织,获得了性能优异的零件。SCUT成功将SLM成型的316L不锈钢应用于舌侧正畸托槽和手术导板,将SLM成型的CoCrMo合金应用于膝关节假体和牙冠牙桥,以及将SLM成型的Ti6Al4V合金应用于个性化接骨板和颅骨多孔修复体。其中,舌侧正畸托槽和牙冠固定桥已经进入商业应用。目前,SCUT正在进一步开展面向植入体内部结构的设计和制造技术研究,同时开始对SLM多材料成型、SLM与切削复合成型进行研究,并逐步开展SLM设备负反馈系统的开发及陶瓷、锌合金、镍钛合金等SLM成型工艺的研究等。 | Yu-chao BAI Fan FU Ze-feng XIAO Ming-kang ZHANG Di WANG Yong-qiang YANG Chang-hui SONG | 2018 | Journal of Zhejiang University-Science A(Applied Physics & Engineering)2018，19，2： | 7 |
| 11 | Speciation of organic phosphorus in a sediment profile of Lake Taihu I:Chemical forms and their transformation显示文摘Organic phosphorus(nonreactive P,NRP)is a major component of P in sediments,but information about its chemical forms and dynamic transformation is limited.The chemical forms and dynamic behaviors of NRP in a sediment profile from Lake Taihu,a freshwater and eutrophic lake in China,were investigated.Five forms of NRP in the sediments were extracted based on a chemical fractionation technique,including easily labile NRP(NaHCO3-NRP),reactive metal oxide-bound NRP(HCl-NRP),humic acid-associated NRP(NaOH-NRPHA),fulvic acid-associated NRP(NaOH-NRPFA)and residual NRP(Res-TP).There were notable transformations with increasing sediment depth from the labile NaHCO3-NRP and NaOH-NRP pools to the recalcitrant HCl-NRP and Res-TP pools,which caused the NRP to become increasingly recalcitrant as the early diagenetic processes proceeded.Further analyses showed that the relative changes in contents of organic matter and reactive Fe oxides in the sediment profile triggered a competition for binding NRP fractions and led to the transformation of NRP.The results highlighted the importance of abiotic processes in regulating the diagenesis of organic P and its stability in sediments. | Di Xu Shiming Ding Bin Li Xiuling Bai Chengxin Fan Chaosheng Zhang | 2013 | Journal of Environmental Sciences2013，25，4： | 7 |
| 12 | Kindlin-2 inhibits Nlrp3 inflammasome activation in nucleus pulposus to maintain homeostasis of the intervertebral disc显示文摘Intervertebral disc(IVD) degeneration(IVDD) is the main cause of low back pain with major social and economic burdens;however, its underlying molecular mechanisms remain poorly defined. Here we show that the focal adhesion protein Kindlin-2 is highly expressed in the nucleus pulposus(NP), but not in the anulus fibrosus and the cartilaginous endplates, in the IVD tissues. Expression of Kindlin-2 is drastically decreased in NP cells in aged mice and severe IVDD patients. Inducible deletion of Kindlin-2 in NP cells in adult mice causes spontaneous and striking IVDD-like phenotypes in lumbar IVDs and largely accelerates progression of coccygeal IVDD in the presence of abnormal mechanical stress. Kindlin-2 loss activates Nlrp3 inflammasome and stimulates expression of IL-1β in NP cells, which in turn downregulates Kindlin-2. This vicious cycle promotes extracellular matrix(ECM) catabolism and NP cell apoptosis. Furthermore, abnormal mechanical stress reduces expression of Kindlin-2, which exacerbates Nlrp3 inflammasome activation, cell apoptosis, and ECM catabolism in NP cells caused by Kindlin-2 deficiency. In vivo blocking Nlrp3 inflammasome activation prevents IVDD progression induced by Kindlin-2 loss and abnormal mechanical stress. Of translational significance, adeno-associated virus-mediated overexpression of Kindlin-2 inhibits ECM catabolism and cell apoptosis in primary human NP cells in vitro and alleviates coccygeal IVDD progression caused by mechanical stress in rat. Collectively, we establish critical roles of Kindlin-2 in inhibiting Nlrp3 inflammasome activation and maintaining integrity of the IVD homeostasis and define a novel target for the prevention and treatment of IVDD. | Sheng Chen Xiaohao Wu Yumei Lai Di Chen Xiaochun Bai Sheng Liu Yongchao Wu Mingjue Chen Yuxiao Lai Huiling Cao Zengwu Shao Guozhi Xiao | 2022 | Bone Research2022，10，1： | 6 |
| 13 | The chromosome-based lavender genome provides new in sights into Lamiaceae evolution and terpenoid biosynthesis显示文摘The aromatic shrub Lavandula angustifolia produces various volatile terpenoids that serve as resources for essential oils and function in plant-insect communication.To better understand the genetic basis of the terpenoid diversity in lavender,we present a high-quality reference genome for the Chinese lavender cultivar‘Jingxun 2'using PacBio and Hi-C technologies to anchor the 894.50 Mb genome assembly into 27 pseudochromosomes.In addition to the y triplication event,lavender underwent two rounds of whole-genome duplication(WGD)during the Eocene-Oligocene(29.6 MYA)and Miocene-Pliocene(6.9 MYA)transitions.As a result of tandem duplications and lineage-specific WGDs,gene families related to terpenoid biosynthesis in lavender are substantially expanded compared to those of five other species in Lamiaceae.Many terpenoid biosynthesis transcripts are abundant in glandular trichomes.We further integrated the contents of ecologically functional terpenoids and coexpressed terpenoid biosynthetic genes to construct terpenoid-gene networks.Typical gene clusters,including TPS-TPS,TPS-CYP450,and TPS-BAHD,linked with compounds that primarily function as attractants or repellents,were identified by their similar patterns of change during flower development or in response to methyl jasmonate.Comprehensive analysis of the genetic basis of the production of volatiles in lavender could serve as a foundation for future research into lavender evolution,phytochemistry,and ecology. | Jingrui Li Yiming Wang Yanmei Dong Wenying Zhang Di Wang Hongtong Bai Kui Li Hui Li Lei Shi | 2021 | Horticulture Research2021，8，1： | 5 |
| 14 | 6G Service Coverage with Mega Satellite Constellations显示文摘The rapid development and continuous updating of the mega satellite constellation(MSC)have brought new visions for the future 6G coverage extension, where the global seamless signal coverage can realize ubiquitous services for user terminals. However, global traffic demands present nonuniform characteristics. Therefore, how to ensure the on-demand service coverage for the specific traffic demand, i.e., the ratio of traffic density to service requirement per unit area, is the core issue of 6G wireless coverage extension exploiting the MSC. To this regard, this paper first discusses the open challenges to reveal the future direction of 6G wireless coverage extension from the perspective of key factors affecting service coverage performance, i.e., the network access capacity, space segment capacity and their matchingrelationship. Furthermore, we elaborate on the key factors affecting effective matchings of the aforementioned aspects, thereby improving service coverage capability. | Min Sheng Di Zhou Weigang Bai Junyu Liu Jiandong Li | 2022 | China Communications2022，19，1： | 4 |
| 15 | Effects of model size and particle size on the response of sea-ice samples created with a hexagonal-close-packing pattern in discrete-element method simulations显示文摘 | Shaocheng Di Yanzhuo Xue Xiaolong Bai Qing wang | 2018 | Particuology2018，16，1： | 4 |
| 16 | The RNA-binding protein ROD1/PTBP3 cotranscriptionally defines AID-loading sites to mediate antibody class switch in mammalian genomes显示文摘 | Juan Chen Zhaokui Cai Meizhu Bai Xiaohua Yu Chao Zhang Changchang Cao Xihao Hu Lei Wang Ruibao Su Di Wang Yingpeng Yao Rong Ye Baidong Hou Yang Yu Shuyang Yu Jinsong Li Yuanchao xue | 2018 | Cell Research2018，28，10： | 4 |
| 17 | High-throughput development of genome-wide locus-specific informative SSR markers in wheat显示文摘Dear Editor,Although simple sequence repeat(SSR)markers are not new,they are still useful and often used markers in molecular mapping and marker-assisted breeding,particularly in developing countries.However,locus-specific SSR markers could be more useful and informative in wheat breeding and genetic studies.In the present study,221,911 locus-specific SSR markers were designed.Verification of polymorphisms showed that the proportion of polymorphic markers increases with an increase in SSR size.Evaluation of the | Lei Li Fayu Sun Di Wu Fei Zhen Guihua Bai Derong Gao Tao Li | 2017 | Science China(Life Sciences)2017，60，6： | 4 |
| 18 | Room-temperature production of silver-nanofiber film for large-area, transparent and flexible surface electromagnetic interference shielding显示文摘A kind of pollution known as electromagnetic interference(EMI),which results from ubiquitous usage of various electronic communication and military radar equipment,has been receiving increasing attention recently.However,large-area EMI shielding on transparent and/or curved surfaces,including building windows,curved glass wall,and special requirements spaces(SRSs),remains hard to achieve.In this paper,a silver nanofiber(AgNF)based flexible and transparent EMI shielding film was successfully assembled via a room-temperature roll-to-roll production method.For transparent application scenario,AgNF with 89%transmittance in visible range and 1μm thickness shows~20 dB shielding efficiency(EMI SE).On the other hand,total shielding(>50 dB)is obtained when the thickness of AgNF increases to 10μm,while its transmittance in visible range remains higher than 75%.Considering the facile and scale-free production technology,this material can be readily applied in large-scale,transparent,and/or SRSs EMI shielding. | Sen Lin Haiyang Wang Fan Wu Qingmin Wang Xiaopeng Bai Di Zu Jianan Song Dong Wang Zhenglian Liu Ziwei Li Nian Tao Kai Huang Ming Lei Bo Li Hui Wu | 2019 | npj Flexible Electronics2019，3，1： | 4 |
| 19 | Enhancing the catalytic efficiency of the Heck coupling reaction by forming 5 nm Pd octahedrons using kinetic control显示文摘异构的催化作用通过界面的反应的一个过程发生;因此,表面方面和尺寸控制能增加催化效率。八面的 Pd nanocrystals,围住由 { 111 } 方面,应该是理想的几何形状为哎呀联合反应;然而,综合是挑战性的有用存在帽子代理人技术的相对一致的尺寸分布的 5 nm Pd 八面体。这里,我们把钯用作一个模型系统调查原子增加的动力学怎么能精确用注射泵被控制。作为结果,我们的方法生产了象 5 nm 一样小的 Pd 八面体,它增加了催化效率哎呀当减少使用的催化剂的重量时,联合反应。 | Ran Long Di Wu Yaping Li Yu Bai Chengming Wang Li Song Yujie Xiong | 2015 | Nano Research2015，8，6： | 4 |
| 20 | Spatial distribution of IL4 controls iNKT cell-DC crosstalk in tumors显示文摘The spatiotemporal distribution of cytokines orchestrates immune responses in vivo,yet the underlying mechanisms remain to be explored.We showed here that the spatial distribution of interleukin-4(IL4)in invariant natural killer T(iNKT)cells regulated crosstalk between iNKT cells and dendritic cells(DCs)and controlled iNKT cell-mediated T-helper type 1(Th1)responses.The persistent polarization of IL4 induced by strong lipid antigens,that is,α-galactosylceramide(αGC),caused IL4 accumulation at the immunological synapse(IS),which promoted the activation of the IL4R-STAT6(signal transducer and activator of transcription 6)pathway and production of IL12 in DCs,which enhanced interferon-γ(IFNγ)production in iNKT cells.Conversely,the nonpolarized secretion of IL4 induced by Th2 lipid antigens with a short or unsaturated chain was incapable of enhancing this iNKT cell-DC crosstalk and thus shifted the immune response to a Th2-type response.The nonpolarized secretion of IL4 in response to Th2 lipid antigens was caused by the degradation of Cdc42 in iNKT cells.Moreover,reduced Cdc42 expression was observed in tumorinfiltrating iNKT cells,which impaired IL4 polarization and disturbed iNKT cell-DC crosstalk in tumors. | Lu Wang Zhilan Liu Lili Wang Qielan Wu Xiang Li Di Xie Huimin Zhang Yongdeng Zhang Lusheng Gu Yanhong Xue Ting Yue Gang Liu Wei Ji Haiming Wei Tao Xu Li Bai | 2020 | Cellular & Molecular Immunology2020，17，5： | 4 |
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