检索结果-南通市图书馆

The genome of the recretohalophyte Limonium bicolor provides insights into salt gland development and salinity adaptation during terrestrial evolution

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2022年第6期15卷 1024-1044页

作者： fang Yuan Xi Wang Boqing Zhao Xiaojing Xu Miao Shi Bingying Leng Xinxiu Dong Chaoxia lu Zhongtao Feng Jianrong Guo Guoliang Han Haikuan Zhang Jianwei Huang Min Chen Bao-Shan Wang Shandong Provincial Key Laboratory of Plant Stress College of Life SciencesShandong Normal UniversityJi’nanShandongChina Berry Genomics Corporation BeijingChina

Halophytes have evolved specialized strategies to cope with high *** extreme halophyte sea lavender(Limonium bicolor)lacks trichomes but possesses salt glands on its epidermis that can excrete harmful ions,such as sodium,to avoid salt ***,we report a high-quality,2.92-Gb,chromosome-scale *** genome assembly based on a combination of Illumina short reads,single-molecule,real-time long reads,chromosome conformation capture(Hi-C)data,and Bionano genome maps,greatly enriching the genomic information on recretohalophytes with multicellular salt *** the *** genome contains genes that show similarity to trichome fate genes from Arabidopsis thaliana,it lacks homologs of the decision fate genes GLABRA3,ENHANCER OF GLABRA3,GLABRA2,TRANSPARENT TESTA GLABRA2,and SIAMESE,providing a molecular explanation for the absence of trichomes in this *** identified key genes(LbHLH and LbTTG1)controlling salt gland development among classical trichome homologous genes and confirmed their roles by showing that their mutations markedly disrupted salt gland initiation,salt secretion,and salt tolerance,thus offering genetic support for the long-standing hypothesis that salt glands and trichomes may share a common *** addition,a whole-genome duplication event occurred in the *** genome after its divergence from Tartary buckwheat and may have contributed to its adaptation to high *** *** genome resource and genetic evidence reported in this study provide profound insights into plant salt tolerance mechanisms that may facilitate the engineering of salt-tolerant crops.

关键词： development evolution genome Limonium bicolor salinity adaptation salt gland

Theoretical Model of Transformation Superlastic Diffusion Bonding for Eutectoid Steel

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

厦门大学学报（自然科学版） 2002年第S1期41卷 13-14页

作者： lu Shi-hong, YUN jun-bi (College of Mechanic and Electricial Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China)

Based on current theories of diffusion and creep cavity closure at high temperature, a theoretical analysis of phase transformation diffusion bonding for T8/T8 eutectoid steel is carried out. The diffusion bonding is mainly described as two-stage process: Ⅰ The interfacial cavity with shape change from diamond to cylinder.Ⅱ The radius of the cylindrical cavity are reduced and eliminated gradually. A new theoretical model is established for the process of transformation superplastic diffusion bonding (TSDB) on the basis of a theoretical model for isothermal superplastic diffusion. The model can predict the bonding quality which is affected by technological parameters, such as limit cycling temperature, the compressive stress, the numbers of thermal cycles and temperature cycling through the phase transformation in the thermal cycling and so on. Results show that the maximum temperature, the compressive stress, the numbers of thermal cycles and the rate of temperature changing speed in the thermal cycling have an important influence on TSDB process. Meanwhile, reasonable technological parameters chosen from theoretical analysis is in good agreement with those obtained from experimental results.

关键词： TSDB eutectoid steel phase transformation superplasticity diffusion bonding theoretical model

DNA cleavage mediated by water-soluble manganese corrole

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2011年第1期22卷 101-104页

作者： jun lu Hai Yang Liu Lei Shi Xiang Li Wang Xiao Ying Lei Zhang Liang Nian Ji Lin Quan Zang Chi K. Chang College of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510641 China Department of Applied Physics South China University of Technology Guangzhou 510641 China State Key Laboratory of Optoelectronics Materials and Technologies/MOE Laboratory of Bioinorganic and Synthetic Chemsitry Sun Yat-Sen University Guangzhou 510275 China Departmentt of Pharmacology Guangdong Pharmaceutical University Guangzhou 510006 China Department of Chemistry Michigan State University East Lansing Michigan 48824 USA

The DNA nuclease-like activity of a water soluble manganese corrole 5, 10, 15-tris（N-methyl-4-pyridyl）- corrolatomanga- nese（III）（MnⅢTMPyC） has been investigated. MnⅢMPyC may bind strongly to DNA via outside groove binding mode as indicated by absorption spectra, viscosity measurements and CD spectra. MnInTMPyC exhibited excellent catalytic activity in the DNA oxidative cleavage in the presence of hydroperoxide.

关键词： Corrole Manganese DNA Oxidative cleavage

Anti-inflammatory and Scalp Care Efficacy of a Multi-herb Extraction against Malassezia furfur

在线全文

学校读者我要写书评

暂无评论

China Detergent & Cosmetics 2020年第4期5卷 60-66页

作者： lu Yina jun Tian Wang Guoxun Liu Dong Shanghai JAKA Biotech Co.Ltd ShanghaiChina Suzhou Greenleaf Daily Commodity Co. Ltd.China

Malassezia furfur is a lipophilic and dermatological pathogenic yeast,which normally exists on human skin,and causes tinea versicolor,seborrhoeic dermatitis,and atopic dermatitis,especially on human *** multi-herb extraction VGP which consists of Vitex trifolia fruit,Gentiana scabra,and Polygonum multiflorum root extract was used to study its effect of anti-inflammation,controlling sebum and dandruff on scalp *** showed that on the model of NHEK and THP1 cell inflammation induced by Malassezia furfur,VGP can inhibit the expression of interleukin 6(IL-6),prostaglandin E2(PGE-2),monocyte chemoattractant protein 1(MCP-1)and interleukin 1β(IL-1β)in a dose-dependent manner under 0.01%to 0.125%*** the inflammatory model of 3D reconstructed skin induced by H2O2,VGP significantly improved the cell viability and skin structure,and reduced the production of interleukin 8(IL-8),PGE-2,and leukotriene B4(LTB4).During 4 week’s treatment with test shampoo contained 0.5%VGP thrice a week on 16 subjects met with different symptom,VGP reduced the sebum content and TEWL,improved the redness,itching and dandruff on human scalp ***,as a natural active ingredient VGP can play a role in scalp care and skin care by targeting inflammation.

关键词： a multi-herd extraction VGP anti-inflammation M.furfur scalp care

A Research on the Existing Problems and countermeasures of standard currency settlement in Sino-Russia frontier trade

在线全文

学校读者我要写书评

暂无评论

A Research on the Existing Problems and countermeasures of s...

Nano-silver induced ceramic coloring via control of glaze interface and phase separation

作者： Li Jian-jun Yang fang Harbin University of Commerce

In recent years, the Chinese and Russian trade has yielded the substantial result, especially China and Russia frontier trade, it makes the very big contributions, but with the development of the SinoRussia frontier trade, we need investigate and analyze the question of standard currency settlement between China banks and Russia banks in order to perfect bank settlements between China and Russia. it can promote the development of SinoRussia frontier trade.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Rare Metals 2021年第8期40卷 2292-2300页

作者： Cong-Xu Zhu Han-lu Zhang Wen-jun Fa Feng-Wei Miao Xiang-Qing Kong Chun-Sheng Kong Ming-Hua Feng Yu Wang Wei-Wei Li Zhen-Li Huang Zhi Zheng Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province College of Chemical and Materials EngineeringXuchang UniversityXuchang461000China Xuchang Hydrology and Water Resources Survey Burcau Xuchang461000China Song Dynasty Royal King Co. LtdXuchang461000China Kongjia jun kiln Co. LtdXuchang461000China

As a kind of rare materials,nano-silver has broad application prospects in the fields of catalysis,medical treatment,new energy and so ***,there are few reports on the systematic research of nano-silver in ceramic *** this work,different color ceramic glazes were produced by tuning the nano-silver content and optimizing the firing *** crystalline phase composition,micro-morphology and elemental distribution of fired glazes were analyzed and discussed in *** elemental composition and distribution of the samples were *** surface of the glazes with varying Ag contents fired under the reducing atmosphere exhibited *** the blue color is attributable to Rayleigh scattering that may arise because the phase-separation structures existed in ***,the color of the ceramic glazes with varying Ag contents changed to golden-yellow when the ceramic glazes were fired under the air ***-yellow color of the samples fired under the air atmosphere is mainly attributable to the silver nanoparticles,though Ag^(+) may be existed in the glazes.

关键词： Ceramic glazes Nanosized silver Microscopic analysis Coloring Phase separation

Oral delivery of dsHvlwr is a feasible method for managing the pest Henosepilachna vigintioctopunctata(Coleoptera:Coccinellidae)

在线全文

学校读者我要写书评

暂无评论

Insect Science 2021年第2期28卷 509-520页

作者： Jing lu Zhuo-Qi Liu Wei Guo Mu-Juan Guo Shi-Min Chen Chun-Xiao Yang You-jun Zhang Hui-Peng Pan Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province South China Agricultural UniversityGuangzhouChina Ling nan Guangdong Laboratory of Modern Agriculture GuangzhouChina Department of Plant Protection Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijingChina

RNA interference(RNAi)techniques have emerged as powerful tools that facilitate development of novel management strategies for insect pests,such as Henosepilachna vigintioctopunctata(Coleoptera:Coccinellidae),which is a major pest of solanaceous plants in *** this study,the potential of oral delivery of in vvYro-synthesized and bacterially expressed double-stranded *** lesswright(Iwr)gene(dsHvlwr)to manage of *** was *** results showed that the gene Hvlwr had a 480-bp open reading frame and encoded a 160-amino acid *** expression levels were greater in the fat body than other tissue *** silencing led to greater *** mortality rates and appeared to be time-and partially dose-dependent,likely as a result of the number of hemocytes increasing with dsRNA concentration,but decreasing with *** expressed dsHvlwr that was applied to leaf discs caused 88%,66%,and 36%mortality in 1st instars,3rd instars,and adults after 10,10,and 14 d,respectively;when applied to living plants,there was greater mortality in 1 st and 3rd instars,but there was no effect on ***,dsHvlwr led to improved plant protection against *** study shows an effective dietary RNAi response in *** and that Hvlwr is a promising RNAi target gene for control of this pest species.

关键词： bacterially expressed dsRNA hemocytes Henosepilachna vigintioctopunctata lesswright:RNAi

微量La对Mg-8Al-4Sr-1Y合金组织和性能的影响

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

材料热处理学报 2015年第3期36卷 125-129页

作者：范晋平房璐璐许并社太原理工大学材料科学与工程学院山西省新材料工程技术研究中心新材料界面科学与工程教育部重点实验室

以Mg-8Al-4Sr-1Y合金为基础合金,在真空电阻熔炼炉中制备了4组La含量不同的Mg-8Al-4Sr-1Y-x La(x=0,0.01%,0.05%,0.1%)合金。采用光学显微镜(OM)、扫描电镜(SEM)、能谱分析(EDS)、X射线衍射仪(XRD)、WDW-100k N型拉伸试验机、RWS50型高温蠕变试验机研究了少量稀土元素La对合金组织及性能的影响。结果表明,当合金中添加La元素后,合金组织得到进一步细化,合金中出现了另一种针状高温相Al4La,该相主要分布在晶界,适量的La有利于合金室温抗拉强度及屈服强度的提高,且在70 MPa,200℃条件下,Mg-8Al-4Sr-1Y-0.05La合金100 h的总应变为0.13%。

关键词：镁合金 La 微观组织力学性能

Association of fatigue with short-term prognosis in young and middle-aged patients with coronary heart disease

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Psychosomatic Medicine Research 2023年第2期5卷 1-8页

作者： fang-Ying Mao lu Yu Qing Wu Jing Zhang School of Nursing Suzhou Medical College of Soochow UniversitySuzhou 215006China Department of Cardiology First Affiliated Hospital of Soochow UniversitySuzhou 215006China

Background:To investigate the effect of fatigue on the short-term prognosis of young and middle-aged patients with coronary heart disease(CHD).Methods:A cross-sectional,observational survey was distributed at a tertiary hospital in Suzhou,*** were assessed for fatigue and their prognosis was assessed at 3 and 6 months after *** Information Questionnaire,Fatigue Scale and Seattle Angina Questionnaire(SAQ)were used for the *** Cox proportional hazard model was used to analyze the impact of fatigue on the occurrence of major adverse cardiac events(MACEs)at 3 and 6 months after *** linear regression models were used to analyze the effect of fatigue on health-related quality of life(HRQoL)at 3 and 6 months after ***:199 patients were followed up with in the end.43 patients(21.6%)with MACE three months after discharge had a total SAQ score of(399.76±39.61).The overall SAQ score was(425.14±22.66)and 52 patients(26.1%)experienced MACE six months after *** was identified as a risk factor for MACE 6 months after discharge by the Cox proportional hazard model(HR=2.939,95%CI:0.177~0.655,P=0.001)and as an independent risk factor for quality of life 3 and 6 months after discharge by multiple linear regression(Plusions:In individuals who are young or middle-aged and have coronary heart disease,fatigue is a risk factor for the short-term *** is advised that clinical professionals prioritize patient fatigue assessment and improve management of fatigue symptoms.

关键词： coronary heart disease fatigue major adverse cardiovascular events quality of life young and middle-aged