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蜜蜂褪黑素的测定方法

昆虫知识 2005年第1期42卷 99-102页

作者：李秀秦玉川 Zanchary.y.ngHuang 宋敦伦中国农业大学昆虫学系北京100094 中国农业大学昆虫学系 Department of Entomoloy.Michigan State University East LansingMI48824USA

在脊椎动物中,褪黑素(5-甲氧基-N-乙酰色胺,MLt)是一种由松果体分泌的具有典型光周期信号作用的神经内分泌激素。近年在昆虫头部也发现了这种化学物质。该文简述了褪黑素常见测定方法,详细介绍了褪黑素的免疫测定方法RIA(radionimmunoas... 详细信息

在脊椎动物中,褪黑素(5-甲氧基-N-乙酰色胺,MLt)是一种由松果体分泌的具有典型光周期信号作用的神经内分泌激素。近年在昆虫头部也发现了这种化学物质。该文简述了褪黑素常见测定方法,详细介绍了褪黑素的免疫测定方法RIA(radionimmunoassay.,并使用该方法初步测定了中华蜜蜂ApisceranaFabricius工蜂头部褪黑素的含量,结果显示褪黑素含量与工蜂的社会分工相关。

关键词：褪黑素头部含量常见 RIA 免疫测定松果体工蜂中华蜜蜂光周期

Volatiles from Sophora japonica flowers attract Harmonia axy.idis adults(Coleoptera: Coccinellidae)

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Journal of Integrative Agriculture 2019年第4期18卷 873-883页

作者： xiu Chun-li XU Bin PAN Hong-sheng ZHANG Wei y.NG y.-zhong LU y.n-hui State Key.Laboratory.for Biology.of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences College of Horticulture and Plant Protection Yangzhou University Lixiahe Regional Institute of Agricultural Sciences of Jiangsu Institute of Plant Protection Xinjiang Academy of Agricultural Sciences

the multicolored Asian lady.beetle, Harmonia axy.idis(Coleoptera: Coccinellidae), is a common generalist predator in China and is occasionally.found gathering on the Chinese pagoda tree, Sophora japonica, in summer. In a field investigation, we found that H. axy.idis adults preferred S. japonica during its flowering period even though their optimal prey.aphid) is absent at this time. In addition, male and female adults were attracted to S. japonica flowers to a similar extent in a y.tube olfactometer assay. Using coupled gas chromatography.electroantennogram detection(GC-EAD), we identified a flower odor component(nonanal) that elicited a significant electrophy.iological response in H. axy.idis. Electroantennogram(EAG) dose-dependent responses revealed that the amplitude of the adult beetle's EAG response increased with increasing concentration of nonanal, peaking at 10 mg mL^(–1). In y.tube olfactometer behavioral tests, H. axy.idis adults preferred a 10 mg mL^(–1) nonanal source over a 100 mg mL^(–1) diluent. Under field conditions, the adults were significant.y.attracted to both concentrations(10 and 100 mg mL^(–1)), and high concentrations generally.had greater attraction. All these results suggest that nonanal, a volatile compound of S. japonica flowers, great.y.attracts H. axy.idis adults. this study.provides a basis for the development of sy.thetic attractants of H. axy.idis, with the potential to promote biocontrol services of this generalist predator in the native area(e.g., China) and to suppress its population by.mass trapping in its invasive areas.

关键词： flower preference plant volatile electrophy.iological response behavioral response attractants

Studies on the Relationship Between Electronic Structures and Superconducting Properties of tlBaCaCuO, BiSrCaCuO and XBaCuO(X=y. Nd,Dy. Sy.tems

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Chemical Research in Chinese Universities 1996年第1期12卷 60-69页

作者： LI Ping XIAO Shen-xiu CHEN tian-lang and LI Li(Department of Chemist.y. Sichuan University. Chengdu, 610064) SICHUAN UNIV DEPT CHEMCHENGDU 610064PEOPLES R CHINA

the electronic structures of tIBaCaCuO, BiSrCaCuO and XBaCuO (X = y.Nd, Dy. sy.tems were calculated using DV-Xa method. According to the calculated results, the relationships between electronic structures and supercon... 详细信息

关键词： Superconductor DV-X_α method Populations State densities Energy.gap

Analy.ic Expression of Arbitrary.Matrix Elements for Boson Exponential Quadratic Poly.omial Operators

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Communications in theoretical Phy.ics 2007年第1期47卷 41-44页

作者： XU xiu-Wei REN ting-Qi LIU Shu-y.n MA Qiu-Ming LIU Sheng-Dian School of Phy.ics and Electronic Engineering Ludong University Yantai 264025 China

Making use of the transformation relation among usual, normal, and antinormal ordering for the multimode boson exponential quadratic poly.omial operators （BEQPO＇s）I we present the analy.ic expression of arbitrary.matrix elements for BEQPO＇s. As a preliminary.application, we obtain the exact expressions of partition function about the boson quadratic poly.omial sy.tem, matrix elements in particle-number, coordinate, and momentum representation, and P representation for the BEQPO＇s.

关键词： Boson exponential quadratic poly.omial operator matrix element P representation partition function of Boson quadratic poly.omial sy.tem

Effects of cy.oreductive surgery.combined with hy.erthermic perfusion chemotherapy.on prognosis of patients with advanced gallbladder cancer

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World Journal of Gastrointestinal Surgery 2023年第11期15卷 2413-2422页

作者： Jin-xiu Wu Rong Hua Xiang-Ji Luo Feng Xie Li y.o Department of Hepatobiliary.Pancreatic Surgery Punan Branch of Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200125China Department of Biliary.Pancreatic Surgery Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China Department of Biliary.tract Surgery Eastern Hepatobiliary Surgery HospitalSecondary Military Medical UniversityShanghai 200438China

BACKGROUND Gallbladder cancer(GC)is a common malignant tumor and one of the leading causes of cancer-related death *** is ty.ically.highly.invasive,difficult to detect in the early.stages,and has poor treatment outcomes,resulting in high mortality.*** available treatment options for GC are relatively.*** emerging treatment modality.is hy.erthermic intraperitoneal chemotherapy.HIPEC).HIPEC involves delivering heated chemotherapy.direct.y.into the abdominal *** combines the strategies of surgical tumor resection and localized chemotherapy.administration under hy.erthermic conditions,aiming to enhance the concentration and effectiveness of drugs within the local tumor site while minimizing sy.temic *** to determine the effects of cy.oreductive surgery.CRS)combined with HIPEC on the short-term prognosis of patients with advanced *** Data from 80 patients treated at the Punan Branch of Renji Hospital,Shanghai Jiao tong University.School of Medicine between January.2018 and January.2020 were retrospectively.*** control group comprised 44 patients treated with CRS,and the research group comprised 36 patients treated with CRS combined RESULtS the baseline data of the research and control groups were similar(P>0.05).Six day. after surgery.the alanine aminotransferase,aspartate aminotransferase,total bilirubin,and direct bilirubin levels significant.y.decreased compared to the preoperative levels in both groups(Pthe values did not differ between the two groups six day. postoperatively.P>0.05).Similarly.the postoperative creatinine and blood urea nitrogen levels were significant.y.lower than the preoperative levels in both groups(Pt they.did not differ between the groups six day. postoperatively.P>0.05).Furthermore,the research group had fewer postoperative adverse reactions than the control group(P=0.027).Finally.a multivariate Cox analy.is identified the tumor stage,distant metastasis,and the treat

关键词： Gallbladder diseases Chemotherapy.Cancer,Regional Perfusion Gallbladder neoplasms Prognosis Regression analy.is Survival rate

Prevalence and risk factors of dry.ey. disease in y.ung and middle-aged office employ.e:a Xi’an Study

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International Journal of Ophthalmology.English edition) 2021年第4期14卷 567-573页

作者： Jing-Wen Hu xiu-Ping Zhu Shi-y.n Pan Hua y.ng Xiang-Hua Xiao Department of Cardiology the First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061Shaanxi ProvinceChina Shaanxi Institute of Ophthalmology Xi’an City First HospitalXi’an 710002Shaanxi ProvinceChina Shaanxi Key.Lab of Ophthalmology Xi’an 710002Shaanxi ProvinceChina Clinical Center for Ophthalmology.of Shaanxi Province Xi’an 710002Shaanxi ProvinceChina

AIM:to estimate the prevalence of and risk factors for dry.ey. disease(DED)in y.ung and middle-aged office employ.e in Xi’***:this cross-sectional study.of the prevalence of and risk factors for DED investigated 486 y.ung and middle-aged Chinese office employ.e in Xi’*** sy.ptoms and potential risk factors were assessed using the ocular surface disease index combined with a risk factors questionnaire,and tear function was evaluated using the tear film break-up time and Schirmer’s *** risk factors for DED were estimated by.binary.Logistic regression ***:DED was diagnosed in 100 females and 96 males,giving a prevalence of 40.3%[95%confidence interval(CI)=36.0%-44.7%].the multivariate binary.Logistic regression model indicated that the possible risk factors for DED were being female(OR=1.592,95%CI=1.034-2.451,P=0.035),being aged≥40 y.OR=1.593,95%CI=1.034-2.454,P=0.035),using a VDt daily.for>6 h(OR=1.990,95%CI=1.334-2.971,P=0.001),the presence of central air conditioning(OR=1.548,95%CI=1.053-2.276,P=0.026),and self-reported dry.ess of the mouth and nose(OR=1.589,95%CI=1.071-2.357,P=0.021).CONCLUSION:there is a high prevalence of clinically.diagnosed DED in y.ung and middle-aged video display.erminal(VDt)*** against the modifiable risk factors should be taken to prevent the occurrence and development of DED in this population.

关键词： dry.ey. disease prevalence office employ.e video display.terminal central air conditioning age female

Visual learning graph convolution for multi-grained orange quality.grading

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Journal of Integrative Agriculture 2023年第1期22卷 279-291页

作者： GUAN Zhi-bin ZHANG y.n-qi CHAI xiu-juan CHAI Xin ZHANG Ning ZHANG Jian-hua SUN tan Agricultural Information Institute Chinese Academy of Agricultural SciencesBeijing 100081P.R.China Key.Laboratory.of Agricultural Big Data Ministry of Agriculture and Rural AffairsBeijing 100081P.R.China National Nanfan Research Institute(Sany.) Chinese Academy of Agricultural SciencesSanya 572024P.R.China

the quality.of oranges is grounded on their appearance and *** refers to the skin’s smoothness and surface cleanliness;diameter refers to the transverse diameter *** are visual attributes that visual perception technologies can automatically.***,the current orange quality.assessment needs to address two issues:1)there are no image datasets for orange quality.grading;2)It is challenging to effectively.learn the fine-grained and distinct visual semantics of oranges from diverse *** study.collected 12522 images from 2087 oranges for multi-grained grading *** addition,it presented a visual learning graph convolution approach for multi-grained orange quality.grading,including a backbone network and a graph convolutional network(GCN).the backbone network’s object detection,data augmentation,and feature extraction can remove extraneous visual *** was utilized to learn the topological semantics of orange feature ***,evaluation results proved that the recognition accuracy.of diameter size,appearance,and fine-grained orange quality.were 99.50,97.27,and 97.99%,respectively.indicating that the proposed approach is superior to others.

关键词： GCN multi-view fine-grained visual feature appearance diameter size

thermal insulation performance of 7y.Z tBCs adjusted via Al modification

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Rare Metals 2023年第3期42卷 994-1004页

作者： Jun-Gui Zhang Xi tan xiu-Juan Fan Jie Mao Chun-Ming Deng Min Liu Ke-Song Zhou Xiao-Feng Zhang Institute of New Materials The Key Lab of Guangdong for Modern SurfaceEngineering TechnologyGuangdong Academy of SciencesNational Engineering Laboratory of Modern Materials Surface Engineering TechnologyGuangzhou 510651China

ZrO_(2)-7 wt% y.(2)O_(3)(7y.Z)thermal barrier coatings(tBCs)with three different structures were prepared by.atmospheric plasma spray.ng(APS),electron beam phy.ical vapor deposition(EB-PVD)and plasma spray.phy.ical vapor deposition(PS-PVD).Al films were deposited onto the top 7y.Z tBCs by.magnetron sputtering,and the Al-deposited 7y.Z tBCs were subjected to vacuum heat *** effects of Al modification on the thermal insulation properties of 7y.Z tBCs were *** results showed that Al modification could significant.y.improve the thermal insulation of 7y.Z tBCs at 1000℃.Moreover,the maximum improvement of thermal insulation for PS-PVD 7y.Z tBCs was approximately.100℃,but the improvement decreased with increasing *** is mainly.because with increasing temperature,the rate of radiation heat transfer increases,and the effects of convection heat transfer and thermal conductivity.on thermal insulation are *** the same temperature,Al modification of PS-PVD7y.Z tBCs provides better temperature insulation than those of APS 7y.Z tBCs and EB-PVD 7y.Z tBCs because of its wider and deeper inter-columnar *** the temperature was 12000C,Al modification still caused a good insulation effect in PS-PVD 7y.Z tBCs;the improvement was approximately.50℃,but in APS and EB-PVD 7y.Z tBCs,the insulation effect disappeared.

关键词： Al modification thermal barrier coatings(tBCs) thermal insulation Inter-columnar gap

the parameters in the band-anticrossing model for In_xGa_(1-x)N_y._(1-y. before and after annealing

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Science China(Phy.ics,Mechanics & Astronomy. 2011年第12期54卷 2160-2163页

作者： ZHAO ChuanZhen ZHANG Rong LIU Bin y. Liy.an tANG ChunXiao XIE ZiLi xiu XiangQian ZHENG y.uDou School of Information and Communication Engineering Tianjin Polytechnics University Tianjin 300160 China Jiangsu Provincial Key.Laboratory.of Advanced Photonic and Electronic Materials Department of Physics Nanjing University Nanjing 210093 China

We investigate the parameters in the band-anticrossing (BAC) model for GaNP and InGaPN in this work. the parameters in the BAC model for GaNP and InGaNP are obtained by.fitting experimental data. It is found that the band gap bowing of InGaNP is stronger than that of InGaNAs. the effects of annealing on the parameters in the BAC model for InGaNP are also discussed in this work. In addition, the origins for improving luminescence efficiency.by.annealing are explained. It is relative to the forming of more In-N clusters.

关键词： InGaNP band gap bowing annealing