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Selection of media tools for community planning:A study from the perspective of communicative planning
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作者 xiaotong zhang Linjun Yu Yang Li 《Chinese Journal of Population,Resources and Environment》 2024年第3期305-311,共7页
In community planning,due to the lack of evidence regarding the selection of media tools,this study examines how a common but differentiated ideal speech situation can be created as well as how more appropriate media ... In community planning,due to the lack of evidence regarding the selection of media tools,this study examines how a common but differentiated ideal speech situation can be created as well as how more appropriate media tools can be defined and selected in the community planning process.First,this study describes the concept and theoretical basis of media used in community planning from the perspectives of the multiple effects of media evolution on communicative planning.Second,the classification criteria and typical characteristics of media tools used to support community planning are clarified from three dimensions:acceptability,cost effectiveness,and applicability.Third,strategies for applying media tools in the four phases of communicative planning-namely,state analysis,problem identification,contradictory solution and optimization-are described.Finally,trends in the development of media tools for community planning are explored in terms of multistakeholder engagement,supporting scientific decision-making and multiple-type media integration.The results provide a reference for developing more inclusive,effective,and appropriate media tools for enhancing decision-making capacity and modernizing governance in community planning and policy-making processes. 展开更多
关键词 Community planning Media tools Communicative planning
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Positive Correlation between PMS2 Deficiency and PD-L1 Expression in Pancreatic Cancer
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作者 Cailing Jiang Chunyan Dang +12 位作者 Ruilong He Limin Cheng Yiying Bai Xinyu Bai Xin Wang Qianhui Chen Hongbin Yang Zhengxin zhang xiaotong zhang Yan Chen Qian Xu Lei Liu Li zhang 《Advances in Bioscience and Biotechnology》 CAS 2023年第2期74-90,共17页
Background: Pancreatic cancer is one of the most lethal types of cancer, and immunotherapy has become a promising remedy with advancements in tumor immunology. However, predicting the clinical response to immunotherap... Background: Pancreatic cancer is one of the most lethal types of cancer, and immunotherapy has become a promising remedy with advancements in tumor immunology. However, predicting the clinical response to immunotherapy in pancreatic cancer remains a dilemma for clinicians. Methods: GEPIA database was used to analyze the differential expression of MMR and PD-L1 genes in 33 common cancer types including pancreatic cancer. The expression levels of MMR and PD-L1 genes were downloaded from the GEPIA and GEO databases to analyze the correlation between MMR genes and PD-L1, and the clinicopathological and survival information were downloaded from the TCGA databases to analyze the relationship between the expression of MMR, PD-L1 and clinicopathological characteristics, prognosis. Meanwhile, the tumor tissue samples of 41 patients with pancreatic cancer were collected, and the protein expression levels of MMR and PD-L1 were detected by immunohistochemical assay. Furthermore, we analyzed the correlation between MMR and PD-L1, and the correlation between the expression of MMR, PD-L1 and clinicopathological characteristics, prognosis of pancreatic cancer patients. Results: Bioinformatics analysis showed that MLH1, MLH3, MSH2, MSH3, and PMS2 were highly expressed in most cancer types including pancreatic cancer (P P = 0.012), clinical stage (I vs II: P = 0.016), MSH2 expression was related to clinical stage (P < 0.05), T stage (T3 vs T4: P = 0.039), and MSH3 expression was related to T stage (P < 0.05). Besides, both MSH2 expression (P P = 0.044) were significantly associated with prognosis. GEPIA data also showed that MSH2 expression was related to prognosis (P = 0.008). The correlation analysis revealed that the expressions MSH2, MLH1, PMS2 had strong correlations with PD-L1 both in GEPIA and GEO databases. Real-world data indicated that of the 41 pancreatic cancer patients, 5 cases had MLH1 deletion, 5 cases had MSH2 deletion, 4 cases had PMS2 deletion, and 12 cases had PD-L1 positive expression. Notably, PMS2 deletion was associated with PD-L1 positive expression (P = 0.035). In addition, MLH1 was related to clinical stage (P = 0.033), age (P = 0.048), and MSH2 was related to clinical stage (P = 0.033). However, MLH1 (P = 0.697), MSH2 (P = 0.956), PMS2 (P = 0.341), and PD-L1 (P = 0.734) appeared to have no impact on overall survival among patients with pancreatic cancer. Conclusion: Both bioinformatics and real-world data showed that there were correlation between PMS2 deletion and PD-L1 expression, and correlation between MLH1, MSH2 and clinical stage. 展开更多
关键词 Pancreatic Cancer PD-L1 PMS2 Mismatch Repair Protein CORRELATION
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First acceptance testing of multiple A10 absolute gravimeters in China and analysis of the comparison results 被引量:2
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作者 xiaotong zhang Hao Zhou +4 位作者 Ying Jiang Dulin Zhai Gongzhe Wei Hui Li Ziwei Liu 《Geodesy and Geodynamics》 EI CSCD 2023年第4期401-410,共10页
Three A10 absolute gravimeters(AGs) were first acquired in China by the Hubei Earthquake Agency under the Belt and Road Seismic Monitoring Network Project. Although AG measuring and testing technique is not new, the p... Three A10 absolute gravimeters(AGs) were first acquired in China by the Hubei Earthquake Agency under the Belt and Road Seismic Monitoring Network Project. Although AG measuring and testing technique is not new, the purchase and simultaneous testing of 3 A10 absolute gravimeters is unprecedented in China. This study conducted the first acceptance testing of the AGs at 3 locations(the Jiufengshan Gravity Observation Station, the Global Navigation Satellite System Observation Station in Wuhan, and the Jiugongshan Observation Station in Xianning). The results were compared using a method based on expert validation, and the acceptance testing scheme was formulated by referring to the Technical Regulations for Tectonic Environment Monitoring Networks in China and Specifications for Gravimetry Control. Based on the repeatability, precision, and consistency of the measured g values, the results from each instrument were evaluated using the air pressure precision test. Comparing the instrument reference values, the final test results can identify the indicator parameters for 3 A10 AGs, the effects of the surrounding environment, and the related parameters on measurement precision. The precision of A10-059, A10-058, and A10-057 exceeded 0.78 μGal, 0.79 μGal, and 0.42 μGal, respectively.This testing scheme can be used as a reference for conducting acceptance testing of AGs in the future and obtaining absolute gravimetric measurements. 展开更多
关键词 Gravitational acceleration Comparison of absolute gravimeters A10 absolute gravimeters Instrument precision
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免疫检查点抑制剂相关肾脏不良反应的临床诊治建议 被引量:13
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作者 邱维 郑可 +4 位作者 王汉萍 斯晓燕 张晓彤 李雪梅 张力 《中国肺癌杂志》 CAS CSCD 北大核心 2019年第10期645-648,共4页
免疫检查点抑制剂(immuno-checkpoint inhibitors,ICIs)正越来越多地应用于临床肿瘤治疗,显著改善了患者预后。T细胞过度活化及相关信号通路的激活,可能引起药物相关的免疫相关不良反应(immune-related adverse effects,irAEs)。其中肾... 免疫检查点抑制剂(immuno-checkpoint inhibitors,ICIs)正越来越多地应用于临床肿瘤治疗,显著改善了患者预后。T细胞过度活化及相关信号通路的激活,可能引起药物相关的免疫相关不良反应(immune-related adverse effects,irAEs)。其中肾脏免疫相关不良反应相对罕见,但也存在严重甚至致命的副作用。本文分析ICIs免疫相关肾损伤的发病率、临床表现及肾脏病理表现,着重讨论诊断和治疗原则。因存在诸多继发因素须与ICIs免疫相关肾损伤相鉴别,必要时应行肾活检以决定重要药物的治疗决策。 展开更多
关键词 免疫检查点抑制剂 免疫相关肾毒性 急性肾小管间质性肾炎
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Pembrolizumab输注过程中出现低血压:病例报告并文献综述 被引量:1
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作者 宋鹏 张晓彤 张力 《中国肺癌杂志》 CAS CSCD 北大核心 2019年第11期738-740,共3页
免疫检查点抑制剂在中国获批时间较短,真实世界的临床数据尚处于收集阶段,国内程序细胞死亡蛋白1(programmed death-1,PD-1)治疗相关不良反应的报道罕见。笔者报道1例Pembrolizumab输注过程中出现低血压,血压恢复后成功输注的案例,希望... 免疫检查点抑制剂在中国获批时间较短,真实世界的临床数据尚处于收集阶段,国内程序细胞死亡蛋白1(programmed death-1,PD-1)治疗相关不良反应的报道罕见。笔者报道1例Pembrolizumab输注过程中出现低血压,血压恢复后成功输注的案例,希望能为免疫检查点抑制剂的应用提供参考,为患者提供最大的临床获益。 展开更多
关键词 Pembrolizumab 输注反应 低血压
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An isoflavone derivative potently inhibits the angiogenesis and progression of triple-negative breast cancer by targeting the MTA2/SerRS/VEGFA pathway 被引量:6
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作者 xiaotong zhang Gengyi Zou +8 位作者 Xiyang Li Lun Wang Tianyu Xie Jin Zhao Longlong Wang Shunchang Jiao Rong Xiang Haoyu Ye Yi Shi 《Cancer Biology & Medicine》 SCIE CAS CSCD 2020年第3期693-706,共14页
Objective:Angiogenesis plays a vital role in tumor growth and metastasis.Here,we aimed to find novel efficient antiangiogenic molecules targeting vascular endothelial growth factor A(VEGFA)at the transcriptional level... Objective:Angiogenesis plays a vital role in tumor growth and metastasis.Here,we aimed to find novel efficient antiangiogenic molecules targeting vascular endothelial growth factor A(VEGFA)at the transcriptional level to treat triple-negative breast cancer(TNBC).Methods:We used a cell-based seryl tRNA synthetase(SerRS)promoter-driven dual-luciferase reporter system to screen an in-house library of 384 naturally occurring small molecules and their derivatives to find candidate molecules that could upregulate the expression of SerRS,a potent transcriptional repressor of VEGFA.The levels of SerRS and VEGFA were examined by quantitative RT-PCR(qRT-PCR),western blotting,and/or ELISAs in TNBC cells after candidate molecule administration.Zebrafish,the Matrigel plug angiogenesis assay in mice,the TNBC allograft,and xenograft mouse models were used to evaluate thein vivoanti-angiogenic and anti-cancer activities.Furthermore,the potential direct targets of the candidates were identified by proteomics and biochemical studies.Results:We found the most active compound was 3-(4-methoxyphenyl)quinolin-4(1H)-one(MEQ),an isoflavone derivative.In TNBC cells,MEQ treatment resulted in increased SerRS mRNA(P<0.001)and protein levels and downregulated VEGFA production.Both the vascular development of zebrafish and Matrigel plug angiogenesis in mice were inhibited by MEQ.MEQ also suppressed the angiogenesis in TNBC allografts and xenografts in mice,resulting in inhibited tumor growth and prolonged overall survival(P<0.05).Finally,we found that MEQ regulated SerRS transcription by interacting with MTA2(Metastasis Associated 1 Family Member 2).Conclusions:Our findings suggested that the MTA2/SerRS/VEGFA axis is a drug-treatable anti-angiogenic target,and MEQ is a promising anti-tumor molecule that merits further investigation for clinical applications. 展开更多
关键词 ISOFLAVONE MTA2 SERRS tumor angiogenesis VEGFA
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Ultra-deep adsorptive removal of thiophenic sulfur compounds from FCC gasoline over the specific active sites of CeHY zeolite 被引量:2
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作者 Yun Zu Chang zhang +5 位作者 Yucai Qin xiaotong zhang Li zhang Honghai Liu Xionghou Gao Lijuan Song 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2019年第12期256-267,共12页
Adsorption desulfurization performance of Na Y,HY and Ce HY zeolites is evaluated in a miniature fixedbed flow by model gasoline containing with thiophene,tetrahydrothiophene,2-methylthiophene,benzothiophene or mixed ... Adsorption desulfurization performance of Na Y,HY and Ce HY zeolites is evaluated in a miniature fixedbed flow by model gasoline containing with thiophene,tetrahydrothiophene,2-methylthiophene,benzothiophene or mixed sulfur compounds.The structural properties of adsorbents are characterized by XRD,N2-adsorption and XPS techniques.Adsorption desulfurization mechanisms of these sulfur compounds over the specific active sites of adsorbents as a major focus of this work,have been systematically investigated by using in situ FT-IR spectroscopy with single and double probing molecules.Desulfurization experimental results show that the Ce HY adsorbent exhibits superior adsorption sulfur capacity at breakthrough point of zero sulfur for ultra-deep removal of each thiophenic sulfur compound,especially in the capture of aromatic 2-methylthiophene(about ca.28.6 mgS/gadsorbent).The results of in situ FT-IR with single probing molecule demonstrate an important finding that high oligomerization ability of thiophene or 2-methylthiophene on the CeHY can promote the breakthrough adsorption sulfur capacity,mainly resulting from the synergy between Br?nsted acid sites and Ce(III)hydroxylated species active sites located in the supercages of Ce HY.Meanwhile,the result of in situ FT-IR with double probing molecules further reveals the essence of oligomerization reactions of thiophene and 2-methylthiophene molecules on those specific active sites.By contrast,the oligomerization reaction of benzothiophene molecules on the active sites of Ce HY cannot occur due to the restriction of cavity size of supercages,but they can be adsorbed on the Br?nsted acid sites via protonation,and on Ce(III)hydroxylated species and extra-framework aluminum hydroxyls species via direct"S-M"bonding interaction.As to the tetrahydrothiophene,adsorption mechanism is similar to that of benzothiophene,except in the absence of protonation.The paper can provide a new design idea of specific adsorption active sites in excellent desulfurization adsorbents for elevating higher quality of FCC gasoline in the future. 展开更多
关键词 CeHY zeolite Active sites Thiophenic sulfur compounds Adsorption desulfurization Oligomerization ability In situ FT-IR spectroscopy
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Carbon materials:The burgeoning promise in electronics 被引量:2
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作者 Yuting Zheng Junjun Wei +6 位作者 Jinlong Liu Liangxian Chen Kang An xiaotong zhang Haitao Ye Xiaoping Ouyang Chengming Li 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2022年第3期404-423,共20页
Current electronic technology based on silicon is approaching its physical and scientific limits. Carbon-based devices have numer- ous advantages for next generation electronics (e.g., fast speed, low power consumptio... Current electronic technology based on silicon is approaching its physical and scientific limits. Carbon-based devices have numer- ous advantages for next generation electronics (e.g., fast speed, low power consumption and simple process), that when combined with the unique nature of the versatile allotropes of carbon elements, are creating an electronics revolution. Carbon electronics are greatly advancing with new preparations and sophisticated designs. In this perspective, representatives with various dimensions, e.g., carbon nanotubes, graphene, bulk diamond, and their extraordinary performance, are reviewed. The associated state-of-the-art devices and composite hybrid all-carbon structures are also emphasized to reveal their potential in the electronics field. Advances in commercial production have improved the cost effi-ciency, material quality, and device design, accelerating the promise of carbon materials. 展开更多
关键词 carbon materials NANOTUBE GRAPHENE DIAMOND electronic devices
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Optimization Design of Halbach Permanent Magnet Motor Based on Multi-objective Sensitivity 被引量:4
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作者 Shuangshuang zhang Wei zhang +2 位作者 Rui Wang Xu zhang xiaotong zhang 《CES Transactions on Electrical Machines and Systems》 CSCD 2020年第1期20-26,共7页
The halbach permanent magnet synchronous motor(HPMSM)combines the advantages of permanent magnet motors and halbach arrays,which make it very suitable to act as a robot joint motor,and it can also be used in other fie... The halbach permanent magnet synchronous motor(HPMSM)combines the advantages of permanent magnet motors and halbach arrays,which make it very suitable to act as a robot joint motor,and it can also be used in other fields,such as electric vehicles,wind power generation,etc.At first,the sizing equation is derived and the initial design dimensions are calculated for the HPMSM with the rated power of 275W,based on which the finite element parametric model of the motor is built up and the key structural parameters that affect the total harmonic distortion of air-gap flux density and output torque are determined by analyzing multi-objective sensitivity.Then the structure parameters are optimized by using the cuckoo search algorithm.Last,in view of the problem of local overheating of the motor,an improved stator slot structure is proposed and researched.Under the condition of the same outer dimensions,the electromagnetic performance of the HPMSM before and after the improvement are analyzed and compared by the finite element method.It is found that the improved HPMSM can obtain better performances. 展开更多
关键词 Halbach permanent magnet synchronous motor multi-objective sensitivity cuckoo search algorithm electromagnetic characteristics finite element analysis
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Comparison of noise-levels between superconducting gravimeter and gPhone gravimeter 被引量:4
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作者 Kun zhang Ziwei Liu +1 位作者 xiaotong zhang Ying Jiang 《Geodesy and Geodynamics》 2018年第6期498-503,共6页
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关键词 Superconducting gravimeter gPhone gravimeter Noise level SNM SSNM
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Preparation and characterization of a novel antibacterial acrylate polymer composite modified with capsaicin 被引量:1
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作者 Jianhui Zhou xiaotong zhang +4 位作者 Ying Yan Jianfeng Hu HangWang Yan Cai Jinqing Qu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2019年第12期3043-3052,共10页
A novel antibacterial acrylate polymer composite modified with capsaicin was successfully synthesized by a two-step reaction.Capsaicin and acryloyl chloride were firstly esterified,and then applied to solution polymer... A novel antibacterial acrylate polymer composite modified with capsaicin was successfully synthesized by a two-step reaction.Capsaicin and acryloyl chloride were firstly esterified,and then applied to solution polymerization with acrylate monomers and styrene.The yield of the esterified products was about 85.3%.The polymer was characterized by Fourier transform infrared spectroscopy(FTIR),gel permeation chromatography(GPC),thermogravimetric analysis(TGA),contact angle(CA)and antibacterial ring tests.The number-average molecular weight(M_n)of the polymer was 27214,based on the capsaicin-acrylate dosage of 6.5 wt%.The TGA revealed a stable thermal property.The contact angles of the polymers films on tinplate increased from 77.5°to 86.2°with the increasing amount of capsaicin-acrylate.The antibacterial tests demonstrated excellent antimicrobial capability of the polymers. 展开更多
关键词 CAPSAICIN ACRYLATE POLYMER Solution POLYMERIZATION ANTIBACTERIAL
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The influence of observation environment on background noise level of gPhone gravimeter 被引量:6
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作者 xiaotong zhang Ying Jiang +1 位作者 Kun zhang Xinlin zhang 《Geodesy and Geodynamics》 2017年第6期443-447,共5页
Based on the observations of 36 gPhone gravimeters in 2015, the background noise levels in the seismic frequency band(200-600 s) and sub-seismic band(1-6 h) are calculated. The differences in the PSD(power spectr... Based on the observations of 36 gPhone gravimeters in 2015, the background noise levels in the seismic frequency band(200-600 s) and sub-seismic band(1-6 h) are calculated. The differences in the PSD(power spectrum density) of each band of gPhone gravimetric gauges in different surrounding environments were analyzed and compared with Peterson's NLNM(new low-noise model) which is derived from the envelope at the power spectrum density of 75 seismograph stations around the world. The results showed that: the influence of station type on the noise magnitude of gPhone gravimeter is very small; The seismic band noise magnitude(hereinafter referred to as SNM) and the sub-seismic band noise magnitude(hereinafter referred to as SSNM) in the coastal gPhone gravimeter are higher than those of inland stations. Although the local hydrological change has a great influence on the gravity observation, the rainfall is not directly relative to the noise magnitude of the instrument. Except 3 coastal stations, the eight stations which had the highest amplitudes in the SNM were located near the seismic belt. This indicates that the SNM of the gPhone Gravimeter may reflect some seismic information.Compared with the NLNM model, the PSD of the gPhone gravimeter is lower than the NLNM model in the long period band(〈3×10^(-5)Hz), indicating that the gPhone gravimeter is more suitable for detecting long-period signals(〉10 h) than the seismometer. 展开更多
关键词 gPhone gravimeter Background noise level NLNM Observation environment
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Mannonic Acid and Bio-Ethanol Production from Konjac Using a Two-Step Bioprocess with Candida Shehatae and Gluconobacter Oxydans 被引量:1
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作者 Jianglin Zhao xiaotong zhang +3 位作者 Weiwei Lei Xingqi Ji Xin Zhou Yong Xu 《Journal of Renewable Materials》 SCIE EI 2020年第1期79-88,共10页
Amorphophallus konjac is rich in glucomannan,which can be hydrolyzed into glucose and mannose,thereby acting as an economic raw material for the acquisition of glucose and mannose.The total sugar yield was 91.2%when k... Amorphophallus konjac is rich in glucomannan,which can be hydrolyzed into glucose and mannose,thereby acting as an economic raw material for the acquisition of glucose and mannose.The total sugar yield was 91.2%when konjac powder was treated with 0.75%hydrochloric acid at 121℃for 1 h.Thus,dilute acid hydrolysates of konjac powder were used as a carbon source for obtaining value-added products.Here we showed that the microbial production of ethanol and mannonic acid was obtained by employing Candida shehatae(C.shehatae)and Gluconobacter oxydans(G.oxydans).Through a step-by-step bioprocess,glucose is the first selectively converted to ethanol by C.shehatae,which enables G.oxydans-mediated biocatalysis of mannose to mannonic acid.Finally,approximately 100 g ethanol and 340 g mannonic acid were produced starting from 1 kg refined konjac powder.The results demonstrated the feasibility of this bioconversion method for producing mannonic acid starting from crude hydrolysates of konjac powder. 展开更多
关键词 KONJAC mannonic acid ETHANOL Gluconobacter oxydans Candida shehatae
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Effects of active molecules of Korean pine seed on rodent health and implications for forest regeneration
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作者 Gang Wei Ke Rong +5 位作者 Kexin Yang Zhiying Bao xiaotong zhang Zhi zhang Yanni Gong Jiafu Wang 《Journal of Forestry Research》 SCIE CAS CSCD 2022年第3期1045-1060,共16页
After maturation, Korean pine (Pinus koraiensis Siebold & Zucc.) seeds often cannot disperse to reach a suitable germination site. It is therefore difficult to naturally regenerate by itself and relies on animal d... After maturation, Korean pine (Pinus koraiensis Siebold & Zucc.) seeds often cannot disperse to reach a suitable germination site. It is therefore difficult to naturally regenerate by itself and relies on animal dispersal. Squirrels hoard pine seeds as winter food and Korean pine seeds stored for overwintering might become the source of regeneration of the species. From field observations, the pine seeds are the food preference for squirrels during autumn in the Lesser Khingan Mountains in Northeast China. Such preference by squirrels has been attributed to high seed energy content and the ease of seed storage. However, it may also be expected from nutritional aspects that a coevolutionary relationship between squirrels and Korean pine species could be partially explained by the effect of active seed components and their physiological regulatory effects on squirrels. To test this hypothesis, control experiments were carried out to examine the modulatory effects of Korean pine nut oil (PNO) on intestinal microbiota, inflammatory profile and oxidative stress in mice. The results showed that, compared with mice fed a high-fat diet, PNO significantly improved the physical and the healthy state of mice. Histological analysis of the liver and epididymal fat tissue showed that PNO alleviated liver and adipocyte lesions, and inflammation caused by high-fat diets. PNO also significantly decreased atherosclerotic index and ameliorate serum lipid accumulation to prevent cardiovascular disease, which effect the positive control SG group. Moreover, PNO elevated superoxide dismutase and glutathione peroxidase enzyme activities and reduced malondialdehyde levels in the serum. 16S rRNA sequencing showed that PNO restored intestinal microbiota composition, significantly increasing the relative abundance of Lactobacillus and Akkermansia bacteria. These results suggest that Korean pine seeds not only provide adequate fat, protein and energy for squirrels, but also promote physical health and improve body immunity. 展开更多
关键词 Plant–animal interactions Natural regeneration Coevolution RODENT Korean pine seed dispersal
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Evaluation of global ocean tide models based on tidal gravity observations in China
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作者 Hongbo Tan Olivier Francis +5 位作者 Guiju Wu Guangliang Yang Jiapei Wang xiaotong zhang Jinshui Huang Chongyang Shen 《Geodesy and Geodynamics》 CSCD 2021年第6期451-458,共8页
Previous studies show that the calculated loading effects from global ocean tide models do not match actual measurements of gravity attraction and loading effects in Southeast Asia.In this paper,taking advantage of a ... Previous studies show that the calculated loading effects from global ocean tide models do not match actual measurements of gravity attraction and loading effects in Southeast Asia.In this paper,taking advantage of a unique network of gravity tidal stations all over the Chinese mainland,we compare the observed and modeled tidal loading effects on the basis of the most recent global ocean tide models.The results show that the average efficiencies of the ocean tidal loading correction for O_(1),K_(1),M_(2) are 77%,7 s3%and 59%,respectively.The loading correction efficiencies using recent ocean tidal models are better than the 40 years old Schwiderskis model at coastal stations,but relative worse at stations far from ocean. 展开更多
关键词 Gravity signals Ocean tidal loading Global ocean tide models gPhone gravimeter
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Correction to:Effects of active molecules of Korean pine seed on rodent health and implications for forest regeneration
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作者 Gang Wei Ke Rong +5 位作者 Kexin Yang Zhiying Bao xiaotong zhang Zhi zhang Yanni Gong Jiafu Wang 《Journal of Forestry Research》 SCIE CAS CSCD 2022年第6期1963-1964,共2页
Correction to:J.For.Res.https://doi.org/10.1007/s11676-021-01380-2 In the Original publication,the author has found that Table 8 has been inadvertently published with errors due to incorrect calculation.The corrected ... Correction to:J.For.Res.https://doi.org/10.1007/s11676-021-01380-2 In the Original publication,the author has found that Table 8 has been inadvertently published with errors due to incorrect calculation.The corrected Table 8 is provided below:Eff ect of PNO supplements on serum lipid levels and the atherosclerosis index TC,TG and LDL-C levels increased,while the HDL-C levels decreased notably in the HFD group compared to the ND group(P<0.01;Table 8).After supplementation with PNO,serum lipid(TG,TC)levels of mice in the M-PNO and H-PNO groups decreased;the diff erences were statistically signifi cant compared with those in the HFD group(P<0.05).Furthermore,PNO supplements signifi-cantly improved HDL-C levels and decreased LDL-C levels(P<0.01). 展开更多
关键词 calculation FOREST ATHEROSCLEROSIS
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A Co-verification Method Based on TWCNP-OS for Two-way Cable Network SOC
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作者 Chong LI xiaotong zhang +1 位作者 Yadong WAN Qin WANG 《International Journal of Communications, Network and System Sciences》 2008年第2期199-206,共8页
Co-verification is the key step of software and hardware codesign on SOC. This paper presents a hw/sw co-verification methodology based on TWCNP-OS, a Linux-based operating system designed for FPGA-based platform of t... Co-verification is the key step of software and hardware codesign on SOC. This paper presents a hw/sw co-verification methodology based on TWCNP-OS, a Linux-based operating system designed for FPGA-based platform of two-way cable network (TWCNP) SOC. By implementing HAL (hardware Abstraction level) specially, which is the communications interface between hardware and software, we offer a homogeneous Linux interface for both software and hardware processes. Hardware processes inherit the same level of service from kernel, as typical Linux software processes by HAL. The familiar and language independent Linux kernel interface facilitates easy design reuse and rapid application development. The hw/sw Architecture of TWCNP and design flow of TWCNP-OS are presented on detail. A software and hardware co-verification method using TWCNP-OS is proposed, through the integrated using of Godson-I test board and TWCNP, which realizes the combination of design and verification. It is not a replacement of the co-verification with generic RTOS modeling, but is complementary to them. Performance analysis of our current implementation and our experience with developing this system based on TWCNP-OS will be presented. Most importantly, since the introduction of TWCNP-OS to our FPGA-based platform, we have observed increased productivity among high-level application developers who have little experience in FPGA application design. 展开更多
关键词 CM SOPC MIPS Co-verification FPGA HAL
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A proton birdcage coil integrated with interchangeable single loops for multi-nuclear MRI/MRS
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作者 Yi zhang Zhiyan QUAN +4 位作者 Feiyang LOU Yujiao FANG Garth J.THOMPSON Gao CHEN xiaotong zhang 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2024年第2期168-180,共13页
Energy metabolism is fundamental for life.It encompasses the utilization of carbohydrates,lipids,and proteins for internal processes,while aberrant energy metabolism is implicated in many diseases.In the present study... Energy metabolism is fundamental for life.It encompasses the utilization of carbohydrates,lipids,and proteins for internal processes,while aberrant energy metabolism is implicated in many diseases.In the present study,using three-dimensional(3D)printing from polycarbonate via fused deposition modeling,we propose a multi-nuclear radiofrequency(RF)coil design with integrated 1H birdcage and interchangeable X-nuclei(^(2)H,^(13)C,^(23)Na,and^(31)P)single-loop coils for magnetic resonance imaging(MRI)/magnetic resonance spectroscopy(MRS).The single-loop coil for each nucleus attaches to an arc bracket that slides unrestrictedly along the birdcage coil inner surface,enabling convenient switching among various nuclei and animal handling.Compared to a commercial 1H birdcage coil,the proposed 1H birdcage coil exhibited superior signal-excitation homogeneity and imaging signal-to-noise ratio(SNR).For X-nuclei study,prominent peaks in spectroscopy for phantom solutions showed excellent SNR,and the static and dynamic peaks of in vivo spectroscopy validated the efficacy of the coil design in structural imaging and energy metabolism detection simultaneously. 展开更多
关键词 Energy metabolism Magnetic resonance imaging(MRI) Magnetic resonance spectroscopy(MRS) Multi-nuclear Radiofrequency coil Three-dimensional(3D)printing
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利用热熔挤出技术制备和表征白藜芦醇缓释固体分散体 被引量:1
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作者 高美琪 吴佳丽 +2 位作者 朱文静 张晓彤 樊文玲 《Journal of Chinese Pharmaceutical Sciences》 CAS CSCD 2023年第3期165-179,共15页
本文旨在制备、表征和评价固体分散体对低溶解度和高熔点的白藜芦醇(RES)的能力。采用热熔挤出法(HME)制备缓释固体分散体(SRSD),使用疏水-亲水聚合物混合物(EudragitRS和Poloxamer188)控制RES的释放。使用单因素试验系统研究了配方和... 本文旨在制备、表征和评价固体分散体对低溶解度和高熔点的白藜芦醇(RES)的能力。采用热熔挤出法(HME)制备缓释固体分散体(SRSD),使用疏水-亲水聚合物混合物(EudragitRS和Poloxamer188)控制RES的释放。使用单因素试验系统研究了配方和工艺参数对制备工艺的影响。接着,采用Box-Behnken设计(三因素、三水平)对SRSD的制备工艺进行优化。使用差示扫描量热法和X-射线衍射来确定固体分散体的物理状态,使用扫描电子显微镜观察其表面特性,使用傅里叶红外光谱探寻辅料之间的化学相互作用。通过溶出度试验考察其动力学和释药时间。体外研究表明,制备出的白藜芦醇固体分散体的释放遵循Weibull模型。最终使用热熔挤出技术成功制备了白藜芦醇缓释固体分散物(RESRS P188-SRSD),其中药物与载体的质量比为1:3,释放调节剂为P188,剂量为10%。该制剂稳定性好,溶出度提高了10倍。 展开更多
关键词 缓释固体分散体 白藜芦醇 热熔挤出 响应面设计
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A review and comparison of surface incident shortwave radiation from multiple data sources: satellite retrievals, reanalysis data and GCM simulations 被引量:1
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作者 Shuyue Yang xiaotong zhang +5 位作者 Shikang Guan Wenbo Zhao Yanjun Duan Yunjun Yao Kun Jia Bo Jiang 《International Journal of Digital Earth》 SCIE EI 2023年第1期1332-1357,共26页
Surface incident shortwave radiation(Rs)can promote the circulation of substance and energy,and the accuracy of its estimation is of great significance for climate studies.The Rs can be acquired from satellite retriev... Surface incident shortwave radiation(Rs)can promote the circulation of substance and energy,and the accuracy of its estimation is of great significance for climate studies.The Rs can be acquired from satellite retrievals,reanalysis predictions and general circulation model(GCM)simulations.Although Rs estimates have been evaluated and compared in previous studies,most of them focus on evaluating the Rs estimates over specific regions using ground measurements from limited stations.Therefore,it is essential to comprehensively validate Rs estimates from multiple data sources.In this study,ground measurements of 690 stations from BSRN,GEBA,CMA,GC-NET and buoys were employed to validate the Rs estimates from seven representative products(GLASS,GEWEX-SRB,CERES-EBAF,ERA5,MERRA2,CFSR and CMIP6).The validation results indicated that the selected products overestimated Rs globally,with biases ranged from 0.48 to 21.27 W/m^(2).The satellite retrievals showed relatively better accuracy among seven datasets compared to ground measurements at the selected stations.Moreover,the selected seven products were all in poor accuracy at high-latitude regions with RMSEs greater than 50 W/m^(2).The long-term variation trends were also analyzed in this study. 展开更多
关键词 Downward shortwave radiation SATELLITE REANALYSIS general circulation model
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