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Effects of functional phylogeny of light-response-related orthologous genes on seedling survival in a subtropical forest

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Forest Ecosystems 2023年第1期10卷 31-36页

作者： Hui Shang Yunquan Wang Baocai han Xiangcheng mi Lei Chen Yu Liang Keping Ma State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China University of Chinese Academy of Sciences Beijing 100049China Shanghai Chenshan Plant Science Research Center Chinese Academy of SciencesShanghai Chenshan Botanical GardenShanghai 201602China College of Chemistry and Life Sciences Zhejiang Normal UniversityJinhua 321004China State Key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of SciencesBeijing 100093China

Background: Light is an important environmental factor affecting the growth and survival of plants in forest communities. The competition for light resources and divergent responses to light may affect plant species coexistence in natural forests through niche partitioning and environmental filtering, ***: In the present study, sequences of light-response-related functional genes were extracted from transcriptomic data of 99 tree species in a subtropical forest and average and nearest taxon phylogenetic diversity of adult(A_Apd’, A_NTpd’) and seedling neighbors(S_Apd’, S_NTpd’) around each focal seedling were calculated to evaluate effects of differentiation in light-response-related genes on community assembly ***: The results showed that seedling survival was related to S_NTpd’, S_Apd’and A_Apd’of two chlorophyll ab-binding proteins involved in the assembly of photosystem Ⅱ and two genes responsive to light intensity,indicating seedlings surrounded by neighbors with distinct light responses tended to have high survival ***: Our results indicated that niche partitioning due to competition for light resources between plants may act as the key mechanism in determining seedling dynamics in subtropical forests.

关键词： Species co-existence Forest communities Neighbor effects Community genomics Negative density dependence Niche partitioning

An Elliptic Centerness for Object Instance Segmentation in Aerial Images

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Journal of Remote Sensing 2022年第1期2022卷 182-195页

作者： Yixin Luo Jiaming han Zhou Liu mi Wang Gui-Song Xia LIESMARS Wuhan UniversityWuhanChina School of Computer Science Wuhan UniversityWuhanChina

Instance segmentation in aerial images is an important and challenging *** of the existing methods have adapted instance segmentation algorithms developed for natural images to aerial ***,these methods easily suffer from performance degradation in aerial images,due to the scale variations,large aspect ratios,and arbitrary orientations of instances caused by the bird’s-eye view of aerial *** address this issue,we propose an elliptic centerness(EC)for instance segmentation in aerial images,which can assign the proper centerness values to the intricate aerial instances and thus mitigate the performance ***,we introduce ellipses to fit the various contours of aerial instances and measure these fitted ellipses by two-dimensional anisotropic Gaussian *** with EC,we develop a one-stage aerial instance segmentation *** experiments on a commonly used dataset,the instance segmentation in aerial images dataset(iSAID),demonstrate that our proposed method can achieve a remarkable performance of instance segmentation while introducing negligible computational cost.

关键词： instance negligible fitted

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表碛覆盖型冰川参数提取方法研究进展

冰川冻土 2024年第1期46卷 347-362页

作者：周卫永许民韩惠韩海东康世昌兰州交通大学测绘与地理信息学院甘肃兰州730070 中国科学院西北生态环境资源研究院冰冻圈科学国家重点实验室甘肃兰州730000 地理国情监测技术应用国家地方联合工程研究中心甘肃兰州730070 甘肃省地理国情监测工程实验室甘肃兰州730070 中国科学院大学北京100049 中国科学院西北生态环境资源研究院国家冰川冻土沙漠科学数据中心甘肃兰州730000

表碛的存在影响了大气与冰川间的能量传输过程,一方面,促进了冰面湖(塘)、冰崖的发育;另一方面,改变了冰川的消融过程和水文模式。利用表碛各项属性和物理参数模型化气候-表碛-冰川间的相互作用和反馈过程能够正确认识表碛覆盖型冰川变... 详细信息

表碛的存在影响了大气与冰川间的能量传输过程,一方面,促进了冰面湖(塘)、冰崖的发育;另一方面,改变了冰川的消融过程和水文模式。利用表碛各项属性和物理参数模型化气候-表碛-冰川间的相互作用和反馈过程能够正确认识表碛覆盖型冰川变化的过程和机理,有助于准确估算和预测冰川物质平衡,进而判断冰川未来演变趋势。本文系统总结和对比了识别表碛范围、提取冰川流速以及获取表碛物理参数的各种技术手段,介绍了表碛覆盖影响下冰川消融模型的原理和应用情况,同时还对这些方法或模型的局限性和发展趋势进行了讨论。表碛覆盖型冰川所处山区地形起伏大、地表变化复杂,为遥感方法识别表碛范围和提取冰川流速带来了诸多困难,如现有表碛识别方法仍无法克服固有干扰因素的影响,而流速提取方法需具备较强抗干扰能力,且配对影像时间基线需尽可能短。当前表碛覆盖型冰川相关研究中关键参数、数据存在大量空缺的状况有望在将来得到改善,冰川动力学过程和表碛动态变化的模型描述将更为精细,冰川物质平衡、径流量等指标的评估和预测也将更为真实准确。

关键词：表碛覆盖型冰川表碛参数提取冰川流速提取冰川物质平衡能量平衡模型

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体外培养的人胸腺组织移植到裸鼠不同部位后的免疫重建效果分析

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免疫学杂志 2024年第2期40卷 113-121页

作者：关万青罗贵华撖菁萱糜建红冯泽清吴玉章南方医科大学基础医学院免疫学教研室广州510000 重庆国际免疫研究院 401338 陆军军医大学基础医学院免疫学教研室重庆400038 重庆理工大学药学与生物工程学院 400054

目的通过分析人胸腺组织切片移植到裸鼠肾包膜,皮下和股四头肌后的免疫重建效果,探究胸腺组织异位移植的最佳位置。方法收集先天性心脏病患者手术废弃的胸腺组织,制作成0.5~1 mm厚的组织切片,体外培养以清除免疫细胞。利用H&E染色、免... 详细信息

目的通过分析人胸腺组织切片移植到裸鼠肾包膜,皮下和股四头肌后的免疫重建效果,探究胸腺组织异位移植的最佳位置。方法收集先天性心脏病患者手术废弃的胸腺组织,制作成0.5~1 mm厚的组织切片,体外培养以清除免疫细胞。利用H&E染色、免疫组织化学染色和定量PCR等方法评估组织切片中残余的组织结构、细胞类型和功能。最后将胸腺组织切片分别移植入裸鼠的肾包膜、皮下和股四头肌3个部位,并通过流式细胞术和组织学检测等手段比较3个部位移植后的免疫重建效果。结果体外培养14 d的胸腺组织切片中T淋巴细胞的清除率达90%以上,上皮细胞网状结构保存完整,残存大量的巨噬细胞、树突状细胞、内皮细胞。定量PCR结果显示,体外培养能有效维持胸腺组织切片中上皮细胞标志物及其分泌细胞因子的基因表达量。流式细胞术显示移植后16周,不同移植组小鼠外周血中T细胞的比例均显著增加,其中股四头肌移植组小鼠的T细胞比例最高。原位组织学检测显示,移植物在3个部位均能检出胸腺组织再生。但是肾包膜组移植物检出率为40%,皮下组移植物检出率为60%,股四头肌组移植物检出率为100%。结论体外培养14 d的胸腺组织切片保留了完整的胸腺基质微环境,移植人的胸腺组织切片后可有效重建裸鼠的T细胞比例,且股四头肌部位移植的效果优于肾包膜和皮下部位。

关键词：人胸腺组织切片胸腺移植免疫重建

Electrochemical co-reduction of holmium and magnesium ions in eutectic LiCl-KCl salts

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Rare Metals 2022年第4期41卷 1394-1402页

作者： Ji Wang Mei Li Wei han Zhi-Yixiong Liu Xiao-Guang Yang Yang Sun mi-Lin Zhang Key Laboratory of Superlight Materials and Surface Technology College of Material Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001China Institute of Nuclear Energy and Safety Harbin Engineering UniversityHarbin 150001China

The electrochemical co-reduction of Ho(Ⅲ)and Mg(Ⅱ)ions was investigated on Mo electrode in eutectic LiCl–KCl salts at temperature of 773 K using various electrochemical *** voltammogram(CV)and square wave voltammogram exhibit three reduction peaks corresponding to the reduction of Ho(Ⅲ)on pre-deposited Mg electrode,whose potentials are more positive than that of Ho on Mo electrode because of the formation of Mg-Ho intermetallic compounds by co-reduction of Ho(Ⅲ)and Mg(Ⅱ)***,chronopotentiometry and open-circuit chronopotentiometry were used to explore the electrochemical formation of Mg–Ho ***–Ho alloys were produced by galvanostatic electrolysis at the current of 1.5 A for different electrolysis ***_(5)Mg_(24),HoMg_(2) and HoMg intermetallic compounds were acquired and characterized by X-ray diffraction(XRD)and scanning electron microscopy(SEM)coupled with energy-dispersive spectroscopy(EDS).The results indicate that Mg–Ho intermetallic compounds,Ho_(5)Mg_(24),HoMg_(2) and HoMg,could be prepared by molten salts electrolysis.

关键词： Electrochemical formation Co-reduction MgHo alloys Galvanostatic electrolysis

Reduction of portosystemic gradient during transjugular intrahepatic portosystemic shunt achieves good outcome and reduces complications

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World Journal of Gastroenterology 2023年第15期29卷 2336-2348页

作者： Shi-Hua Luo mi-mi Zhou ming-Jin Cai Shao-Lei han Xue-Qiang Zhang Jian-Guo Chu Department of Interventional Radiology The Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhou 510150Guangdong ProvinceChina Department of Liver Disease Jinan Infectious Disease HospitalShandong University School of MedicineJinan 250021Shandong ProvinceChina Department of Gastroenterology The Second Hospital of Hebei Medical UniversityShijiazhuang 050000Hebei ProvinceChina Department of Gastroenterology Air Force Medical Center of PLABeijing 100142China

BACKGROUND Transjugular intrahepatic portosystemic shunt(TIPS)is placed important role in the therapy of complications of portal hypertension,there is still no suitable criterion for a reduction in portosystemic gradient(PSG),which can both reduce PSG and maximize clinical results and minimize hepatic encephalopathy(HE).AIM To compare the clinical outcomes and incidence of HE after one-third PSG reduction during TIPS in patients with variceal bleeding and refractory *** A total of 1280 patients with portal-hypertension-related complications of refractory ascites or variceal bleeding who underwent TIPS from January 2016 to January 2019 were analyzed *** were divided into group A(variceal hemorrhage and PSG reduced by one third,n=479);group B(variceal hemorrhage and PSG reduced to<12 mmHg,n=412);group C(refractory ascites and PSG reduced by one third,n=217);and group D(refractory ascites and PSG reduced to<12 mmHg of PSG,plus medication,n=172).The clinical outcomes were *** By the endpoint of follow-up,recurrent bleeding was no different between groups A and B(χ^(2)=7.062,P=0.374),but recurrent ascites did differ significantly between groups C and D(χ^(2)=14.493,P=0.006).The probability of total hepatic impairment within 3 years was significantly different between groups A and B(χ^(2)=11.352,P=0.005)and groups C and D(χ^(2)=13.758,P=0.002).The total incidence of HE differed significantly between groups A and B(χ^(2)=7.932,P=0.016),groups C and D(χ^(2)=13.637,P=0.007).There were no differences of survival rate between groups A and B(χ^(2)=3.376,P=0.369,log-rank test),but did differ significantly between groups C and D(χ^(2)=13.582,P=0.014,log-rank test).CONCLUSION The PSG reduction by one third may reduce the risk of HE,hepatic function damage and achieve good clinical results.

关键词： Portal hypertension Transjugular intrahepatic portosystemic shunt Portosystemic gradient Liver cirrhosis Variceal bleeding Refractory ascites

课程美育的内涵、意义及实践路径——以陕西中医药大学为例

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陕西中医药大学学报 2024年第1期47卷 103-106页

作者：韩曼卫昊鞠迪李汨于远望陕西中医药大学陕西咸阳712046

为全面贯彻落实习近平总书记关于教育的重要论述和全国教育大会精神,切实加强新时代高等学校美育工作,充分发挥各门课程的美育功能而进行了美育教育的思考与探索。课程美育的本质是一种教育理念,在教会学生求“真”的同时,也教会学生求... 详细信息

为全面贯彻落实习近平总书记关于教育的重要论述和全国教育大会精神,切实加强新时代高等学校美育工作,充分发挥各门课程的美育功能而进行了美育教育的思考与探索。课程美育的本质是一种教育理念,在教会学生求“真”的同时,也教会学生求“美”;课程美育的宗旨是立德树人,促进学生德智体美劳全面发展,培养堪当民族复兴重任的时代新人;课程美育的核心是挖掘课程美育资源,将美的素材、美的元素融入渗透到专业课程学习之中,课程美育和美育课程相互补充、相得益彰、同向同行、协同育人。开展课程美育有利于打通学科壁垒、专业界限、课程属性,深化“三全育人”,充分挖掘各专业课中所蕴含的美育教育资源,有利于美育教育提质增效并可强化协同育人。课程美育的最终实现则需做好顶层设计、示范引领以及推广应用。

关键词：课程美育内涵美育教育立德树人

Experimental Study for the Cementation Effect of Dust Soil by Using Soybean Urease

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Journal of Renewable Materials 2023年第6期11卷 2893-2911页

作者： Jianwei Zhang Yue Yin Lei Shi Yi han mi Zhou Xihong Zhang School of Civil Engineering and Architecture Henan UniversityKaifeng475004China College of Civil and Transportation Engineering Hohai UniversityNanjing210024China State Key Laboratory of Subtropical Building Science South China University of TechnologyGuangzhou510640China School of Civil and Mechanical Engineering Curtin UniversityBentley6102Australia

Dust is an environmental and health *** this study,a new technology for dust suppressant is introduced using soybean urease with an optimal cementing *** carbonate is produced by soybean urease and cementing solution,which bonds the soil particles towards a dust suppressant.A laboratory wind tunnel test is carried out to examine its effectiveness and discover possible optimization *** factors,including soybean meal concentration,cementing solution concentration,and volume of solution per unit area,are examined to quantify their influences on soil transport mass,evaporation ratio,evaporation rate,surface strength,water retention ratio,and infiltration rate of soil treated by different dust *** tests are conducted to explore the performance of this method in the natural *** results show that compared with other dust suppressants,the optimized soybean urease has the smallest evaporation rate,a moderate infiltration rate,the largest water retention ratio and surface *** indexes of soybean urease for dust suppressant are found to be better than traditional *** the natural environment,soybean urease has a stronger anti-disturbance *** study concludes that soybean urease dust suppressant has great application potential as a cheap and green method.

关键词： Soybean urease dust suppressant wind erosion evaporation rate surface strength

Bilateral superficial cervical plexus block for parathyroidectomy during pregnancy:A case report

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World Journal of Clinical Cases 2022年第13期10卷 4153-4160页

作者： Jun-Young Chung Yo Seob Lee Seung Yeon Pyeon Sang-ah han Hyub Huh Department of Anesthesiology and Pain Medicine Kyung Hee University Hospital at GangdongCollege of MedicineKyung Hee UniversitySeoul 05278South Korea Department of Obstetrics&Gynecology Kyung Hee University Hospital at GangdongCollege of MedicineKyung Hee UniversitySeoul 05278South Korea Department of Surgery Kyung Hee University Hospital at GangdongCollege of MedicineKyung Hee UniversitySeoul 05278South Korea

BACKGROUND Primary hyperparathyroidism(PHPT)is the most common cause of pregnancyrelated *** can cause maternal and fetal complications in pregnant *** anesthesia for non-obstetric surgery in pregnant women is associated with maternal hazards and concerns regarding long-term neonatal neurocognitive *** removal of the lesion in mid-pregnancy is currently the primary treatment option for pregnant patients with ***,the blood calcium concentration at which surgery should be considered remains under discussion due to the risk of *** SUMMARY A 31-year-old nulliparous woman at 11 wk of gestation was admitted to our hospital for *** patient had a history of intrauterine fetal death with unknown etiology at 16 wk of gestation 1 year *** blood test results showed that the serum calcium level was elevated to 12.9 mg/dL,and the parathyroid hormone level was elevated to 157 pg/*** a neck ultrasound,it revealed a 0.8 cm×1.5 cm sized oval,hypoechoic mass in the upper posterior of the left thyroid gland,which was compatible with parathyroid *** cervical plexus block(SCPB)for parathyroidectomy was *** surgery,the obstetrician checked the status of the fetus,and there were no abnormal *** then her calcium level returned to normal values after one week of surgery and a healthy male neonate of 2910 g was delivered vaginally at 38 wk of *** Our case suggests that SCPB can be an anesthetic option for parathyroidectomy during the first trimester of pregnancy.

关键词： Bilateral superficial cervical plexus block Hypercalcemia Parathyroid adenoma Parathyroidectomy Pregnancy Case report