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Diverse foraging strategies of breeding Swinhoe's Storm-petrel in the productive marginal sea of the Northwest Pacific

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Avian Research 2024年第1期15卷 27-34页

作者： Yachang Cheng lei Zhu Lin Xue Shisheng Ma Nan Jia Shaoping Zang zhihai Cao Jing Yuan Yang Liu State Key Laboratory of Biocontrol School of EcologySun Yat-sen UniversityShenzhen 518107China Guangxi Mangrove Research Center Guangxi Marine Academy of SciencesNanning 530021China Qingdao Bird Watch Society Qingdao 266121China Jiangsu Provincial Environmental Monitoring Center Nanjing 210019China Marine Science and Engineering Qingdao Agricultural UniversityQingdao 266109China Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering Fudan UniversityShanghai 200433China Qingdao Marine Management and Support Centre Qingdao 266555China Management Committee of Lingshan Island Provincial Nature Reserve Qingdao 266428China

Understanding the foraging behavior is essential for investigating seabird ecology and conservation,as well as monitoring the well-being of the marine *** seabirds adopt diverse foraging strategies to maximize energy gains and cope with the intensified challenges of parenting and *** tradeoff may stem from the heterogeneity of food resources and the constraints of central place ***,abundant marine productivity could alleviate the energy limitation for seabirds,resulting in a consistent foraging ***,we investigated the foraging strategy during the breeding season of a cryptic small-sized seabird,Swinhoe’s Storm-petrel(Hydrobates monorhis),in the Yellow Sea,a productive marginal sea of the Northwest *** GPS tracking,we evaluated habitat preference,quantified the foraging strategy,and tested if environmental conditions and individual traits influence foraging *** found that Swinhoe’s Storm-petrels preferred nearshore areas with shallow water and engaged in primarily short foraging *** southeastward and southwestward strategies emerged when combining trip metrics,including foraging direction,duration,and maximum *** bathymetry,proximity to the coastline,and sea surface temperature differed in two foraging *** strategies exhibited flexibility between individuals,potentially explained by wing morphology,in which longer-winged birds are more likely to embark on longer-distance foraging *** findings highlight the impact of environmental factors and individual traits on seabirds’foraging decisions in productive marginal sea *** study also provides valuable insights into the foraging ecology of this Asian endemic storm-petrel.

关键词： Behavioral strategy Biologging Central place foraging Marine primary productivity Seabird Sea surface temperature

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Suppression of miR-1197-3p attenuates H2O2-induced apoptosis of goat luteinized granulosa cells via targeting PPARGC1A

Suppression of miR-1197-3p attenuates H2O2-induced apoptosis...

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中国解剖学会2019年年会

作者： Guomin Zhang Juan Su Wenna Qiao zhihai lei Joint International Research Laboratory of Animal Health and Food Safety College of Veterinary MedicineNanjing Agricultural University

Peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PPARGC1A) acts as a powerful coactivator of many transcriptional factors that relate to granulosa cell (GC) *** this study,the miRNAs mediating goat follicular atresia and luteinized granulosa cell (LGC) apoptosis induced by hydrogen peroxide (HO) via PPARGC1A were ***

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巯基乙酸盐对猪血清游离脂肪酸水平的影响

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畜牧与兽医 1999年第6期31卷 5-6页

作者：雷治海 BarbCRandKraelingRR 南京农业大学动物医学院 210095 RussellAgriculturalResearchCenter

用比色法研究了巯基乙酸盐(mercaptoacetate, MA) 对12 头青年母猪血清游离脂肪酸(FFA) 水平的影响。结果: 1- 与对照组相比, 每千克体重猪注射50 mg MA 对血清FFA 水平无明显影响; 2- 每千克体重猪注射100 mg MA 后6 h , 血清FFA 水平... 详细信息

用比色法研究了巯基乙酸盐(mercaptoacetate, MA) 对12 头青年母猪血清游离脂肪酸(FFA) 水平的影响。结果: 1- 与对照组相比, 每千克体重猪注射50 mg MA 对血清FFA 水平无明显影响; 2- 每千克体重猪注射100 mg MA 后6 h , 血清FFA 水平明显升高, 差异极显著( P < 0-001) ;3- 每千克体重猪注射200 mg MA 后3 h , 血清FFA 水平显著升高, 并维持在较高的水平直到实验结束( 给药后6 h) , 差异极显著( P < 0-001) 。实验结果表明, 一定剂量( 每千克体重100 mg 和200 mg) 的MA 能显著提高青年母猪血清FFA 水平, 可用作研究生长和生殖能量代谢调控的药物。

关键词：巯基乙酸盐游离脂肪酸猪血清比色法剂量

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Metabonomics Approach to Understanding Chronic Heat Stress in Rat Models

Metabonomics Approach to Understanding Chronic Heat Stress i...

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中国畜牧兽医学会动物解剖及组织胚胎学分会第十八次学术研讨会

作者： Yuanlong Hou Xiaoyan Wang zhihai lei Juan Su Nanjing Agricultural University Shanghai Jiao Tong University

Chronic heat stress(CHS) may trigger systemic biochemical and physiological changes in living *** and more evidence suggests that highly activated under stress conditions neuroendocrine immune network will have a strong and sustained influence the well balanced metabolism of *** reproductive system,heat stress induces germ cell loss and poor quality ***,such a sophisticated metabolic regulatory process has so far been poorly understood,especially from a systemic *** this study,serum,hypothalamus,and epididymis derived from male sprague-dawley(SD) rats exposed to the elevated ambient temperature(40℃) daily for 2 h for seven consecutive days was analyzed using GC/MS in conjunction with modern multivariate statistical *** analysis of this three tissues revealed that sympathetic nervous system(SNS),hypothalamic-pituitary-adrenal axis(HPA) and hypothalamic-pituitary-testis axis(HPT)might be simultaneously affected by chronic heat stress,with Differentially epressed metabolites including metabolites of the energy metabolism,amino acid neurotransmitters,monoamine neurotransmitters etc..Moreover,this metabolites were tightly regulated reproductive *** study provides important mechanistic insights into the effects of HS-induced reproductive and metabolic dysfunction.

关键词： metabonomics chronic heat stress reproductive serum hypothalamus epididymis gas chromatography/mass spectrometry

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Expression pattern of NMS/NMU2R mRNA in the pig reproductive axis during the estrus cycle and the role of NMS on the reproductive axis in vitro

Expression pattern of NMS/NMU2R mRNA in the pig reproductive...

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中国畜牧兽医学会动物解剖学及组织胚胎学分会第五次会员代表大会暨第十六次学术研讨会

作者： Guihong Yang,zhihai lei~* College of Veterinary Medicine,Nanjing Agricultural University,Nanjing 210095,Jiangsu,P R China

Evidence has revealed that neuromedin S(NMS) and neuromedin U receptor type-2(NMU2R) mRNAs are expressed in the central nervous system and reproductive *** data indicated that variation of NMS and NMU2R was due to the phases of the adult rat hypothalamus estrus ***, the expression and function of NMS in the pig reproductive axis remains *** this study,16 virginal gilts were classified into four groups:proestrus,estrus,diestrus 1,and diestrus 2;the expression of NMS and NMU2R in the cyclic pig hypothalamus-pituitary-ovary axis was studied by reverse transcriptaion-polymerase chain reaction(RT-PCR),and the effect of NMS on the reproductive axis in vitro was detected by radioimmunoassay(RIA).The cloned pig NMS and NMU2R sequences were 82%and 90.2%identical to those of the corresponding human homologues,***-PCR showed that NMS and NMU2R mRNA expression in the hypothalamus and pituitary changed with the estrus cycle,i.e.,with the highest level in the proestrus group and the lowest in the estrus *** the ovary,NMS and NMU2R expression was highest in the diestrus 2 group and the lowest in the proestrus *** the in vitro study, different concentrations of NMS induced the release of gonadotropin-releasing hormone,luteinizing hormone,and estradiol at different levels of the reproductive *** together,the expression pattern of NMS during the estrus cycle and its role in reproductive hormones in vitro provide novel evidences of the potential roles of NMS in the regulation of pig reproduction.

关键词： NMS NMU2R RT-PCR Radioimmunoassay Reproductive axis

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Metarelation2vec:A Metapath-Free Scalable Representation Learning Model for Heterogeneous Networks

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Tsinghua Science and Technology 2024年第2期29卷 553-575页

作者： lei Chen Yuan Li Yong lei Xingye Deng School of Information and Electrical Engineering Hunan University of Science and TechnologyXiangtan 411201China School of Computer Science and Engineering Hunan University of Science and TechnologyXiangtan 411201China

Metapaths with specific complex semantics are critical to learning diverse semantic and structural information of heterogeneous networks(HNs)for most of the existing representation learning ***,any metapaths consisting of multiple,simple metarelations must be driven by domain *** sensitive,expensive,and limited metapaths severely reduce the flexibility and scalability of the existing models.A metapath-free,scalable representation learning model,called Metarelation2vec,is proposed for HNs with biased joint learning of all metarelations in a bid to address this ***,a metarelation-aware,biased walk strategy is first designed to obtain better training samples by using autogenerating cooperation probabilities for all metarelations rather than using expert-given ***,grouped nodes by the type,a common and shallow skip-gram model is used to separately learn structural proximity for each node ***,grouped links by the type,a novel and shallow model is used to separately learn the semantic proximity for each link ***,supervised by the cooperation probabilities of all meta-words,the biased training samples are thrown into the shallow models to jointly learn the structural and semantic information in the HNs,ensuring the accuracy and scalability of the *** experimental results on three tasks and four open datasets demonstrate the advantages of our proposed model.

关键词： metarelation random walk heterogeneous network metapath representation learning

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Two-Stage Online Debiased Lasso Estimation and Inference for High-Dimensional Quantile Regression with Streaming Data

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Journal of Systems Science & Complexity 2024年第3期37卷 1251-1270页

作者： PENG Yanjin WANG lei School of Statistics and Data Science KLMDASRLEBPS and LPMCNankai UniversityTianjin 300071China

In this paper,the authors propose a two-stage online debiased lasso estimation and statistical inference method for high-dimensional quantile regression(QR)models in the presence of streaming *** the first stage,the authors modify the QR score function based on kernel smoothing and obtain the online lasso smoothed QR estimator through iterative *** estimation process only involves the current data batch and specific historical summary statistics,which perfectly accommodates to the special structure of streaming *** the second stage,an online debiasing procedure is carried out to eliminate biases caused by the lasso penalty as well as the accumulative approximation error so that the asymptotic normality of the resulting estimator can be *** authors conduct extensive numerical experiments to evaluate the performance of the proposed *** experiments demonstrate the effectiveness of the proposed method and support the theoretical *** application to the Beijing PM2.5 Dataset is also presented.

关键词： Adaptive tuning asymptotic normality debiased lasso online updating quantile regres-sion

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神经介素U在体外对猪淋巴细胞活性及自然杀伤细胞活性的影响

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南京农业大学学报 2017年第1期40卷 157-162页

作者：李晓亮李翔张征雷治海南京农业大学动物医学院江苏南京210095

[目的]本文旨在研究神经介素U(NMU)对猪外周血淋巴细胞(PBL)的免疫调节作用。[方法]以小梅山猪为研究对象,用半定量RT-PCR方法研究了猪PBL中NMU及其受体(NMUR1和NMUR^2)基因的表达,用免疫组织化学染色方法检测了猪PBL中NMU及其受体蛋白... 详细信息

[目的]本文旨在研究神经介素U(NMU)对猪外周血淋巴细胞(PBL)的免疫调节作用。[方法]以小梅山猪为研究对象,用半定量RT-PCR方法研究了猪PBL中NMU及其受体(NMUR1和NMUR^2)基因的表达,用免疫组织化学染色方法检测了猪PBL中NMU及其受体蛋白的分布,用Cell Counting Kit-8(CCK-8)细胞计数法研究了NMU对猪PBL细胞和NK细胞活性的影响。[结果]NMUR1 mRNA在猪PBL中表达,NMU和NMUR1蛋白在猪PBL的胞膜及胞浆均有分布。用不同浓度(0.01、0.1、1、10、100和1 000 nmol·L^(-1))NMU处理体外培养的PBL,与对照组相比,0.1、1和10 nmol·L^(-1)NMU极显著提高猪PBL的细胞活性(P<0.01),且当NMU浓度为10 nmol·L^(-1)时,PBL活性的水平达到峰值(179.4±3.0)%。用不同浓度(0.01、0.1、1、10、100和1 000 nmol·L^(-1))NMU处理体外培养的PBL细胞作为效应细胞,以K562细胞作为靶细胞。与对照组相比,在效靶比为15∶1时,0.1、1和10 nmol·L^(-1)的NMU均能显著提高NK细胞的细胞活性(P<0.01);效靶比为30∶1时,1和10 nmol·L^(-1)的NMU均能显著提高NK细胞的细胞活性(P<0.01);在效靶比为60∶1时,10 nmol·L^(-1)NMU能显著提高NK细胞的细胞活性(P<0.01)。[结论]NMU及NMUR1在猪PBL中均有表达,且NMU在一定浓度范围内能提高猪NK细胞对K562细胞的杀伤能力。

关键词：神经介素U(NMU) 小梅山猪 RT-PCR 细胞组织化学 CCK-8

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Structural energy storage composites based on modified carbon fiber electrode with metal-organic frame enhancing layered double hydroxide

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Nano Research 2024年第3期17卷 1552-1563页

作者： Jinrui Ye Zhongbao Wang Qin lei lei Sun Jinfeng Gu School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China Tangshan Research Institute Beijing Institute of TechnologyTangshan 063000China School of Materials Science and Engineering Shenyang Jianzhu UniversityShenyang 110168China Department of Stomatology PLA Strategic Support Force Characteristic Medical CenterBeijing 100101China Beijing Electromechanical Engineering Research Institute Beijing 100074China

Structural energy storage composites present advantages in simultaneously achieving structural strength and electrochemical *** of carbon fiber electrodes and resin structural electrolytes in energy storage composite poses challenges in maintaining good mechanical and electrochemical properties at reasonable cost and ***,we report a simple method to fabricate structural supercapacitor using carbon fiber electrodes(modified by Ni-layered double hydroxide(Ni-LDH)and in-situ growth of Co-metal-organic framework(Co-MOF)in a two-step process denoted as Co-MOF/Ni-LDH@CF)and bicontinuous-phase epoxy resin-based structural ***-MOF/Ni-LDH@CF as electrode material exhibits improved specific capacity(42.45 F·g^(-1))and cycle performance(93.3%capacity retention after 1000 cycles)in a three-electrode *** bicontinuous-phase epoxy resin-based structural electrolyte exhibits an ionic conductivity of 3.27×10^(-4) S·cm^(-1).The fabricated Co-MOF/Ni-LDH@CF/SPE-50 structural supercapacitor has an energy density of 3.21 Wh·kg^(-1) at a power density of 42.25 W·kg^(-1),whilst maintaining tensile strength and modulus of 334.6 MPa and 25.2 *** results show practical potential of employing modified commercial carbon fiber electrodes and epoxy resin-based structural electrolytes in structural energy storage applications.

关键词： carbon fiber electrode structural electrolyte structural energy storage composites supercapacitor

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Terminal-selective C（sp3）–H borylation of unbranched alkanes enabled by intermolecular radical sampling and LMCT photocatalysis

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National Science Review 2024年第5期11卷 96-98页

作者： Zhexuan lei Jie Wu Department of Chemistry National University of Singapore

The selective functionalization of C（sp3）–H bonds with subtle differences in alkanes is highly sought after due to its atom-and step-efficiency. The activation of C（sp3）–H bonds through hydrogen atom transfer （HAT） has been extensively exploited to produce a valueadded product from unfunctionalized material [1,2].

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