检索结果-南通市图书馆

Giving maize an excited start-Effects of dopamine on maize germination

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2020年第11期19卷 2690-2698页

作者： CHENG Hang-yuan WANG xing FENG Tian-yu peng Chuan-xi WANG Wei YANG Mu-yu ZHOU Yu-yi College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193P.R.China Engineering Research Center of Plant Growth Regulator Ministry of EducationBeijing 100193P.R.China

Dopamine(DA)is a neurotransmitter which takes charge of brain activities about memory and self-stimulation behavior in ***,our results suggest that DA could also give maize an“excited state”.The results showed that 1 mmol L–1 DA promoted maize germination by 23.2%significantly,and accelerated the growth rate of roots and shoots by 21.4 and 24.7%,*** we all known,abscisic acid(ABA)is the key hormone involved in seed *** our research,ABA levels in roots and shoots dramatically decreased by 16.45 and 57.57%,*** further investigate how DA reduces the ABA level in budding seed,we studied ABA synthesis and catabolism *** expression of key ABA-synthesis genes,such as ZmNCED1,ZmNCED3 and ZmZEP were down-regulated by ***,the expression levels of ABA8OX1a and ABA8OX1b which are major transcripts of ABA 8´-hydroxylase in ABA catabolism were up-regulated at least 1.5-and 4.6-fold,*** results enriched the functions of animal hormones in plants.

关键词： dopamine(DA) maize germination ABA synthesis ABA catabolism

Phase-Dislocation-Mediated High-Dimensional Fractional Acoustic-Vortex Communication

在线全文

学校读者我要写书评

暂无评论

Research 2024年第3期2023卷 575-584页

作者： Ruijie Cao Gepu Guo Wei Yue Yang Huang xinpeng Li Chengzhi Kai Yuzhi Li Juan Tu Dong Zhang peng xi Qingyu Ma School of Computer and Electronic Information Nanjing Normal UniversityNanjing 210023China Department of Biomedical Engineering College of Future TechnologyPeking UniversityBeijing 100871China nstitute of Acoustics Nanjing UniversityNanjng 210093China National Biomedical Imaging Center Peking UniversityBeijing 100871China

With unlimited topological modes in mathematics,the fractional orbital angular momentum(FOAM)demonstrates the potential to infinitely increase the channel capacity in acoustic-vortex(AV)***,the accuracy and stability of FOAM recognition are still limited by the nonorthogonality and poor anti-interference of fractional AV *** popular machine learning,widely used in optics based on large datasets of images,does not work in acoustics because of the huge engineering of the 2-dimensional point-by-point ***,we report a strategy of phase-dislocation-mediated high-dimensional fractional AV communication based on pair-FOAM multiplexing,circular sparse sampling,and machine *** unique phase dislocation corresponding to the topological charge provides important physical guidance to recognize FOAMs and reduce sampling points from theory to practice.A straightforward convolutional neural network considering turbulence and misalignment is further constructed to achieve the stable and accurate communication without involving experimental *** experimentally present that the 32-point dual-ring sampling can realize the 10-bit information transmission in a limited topological charge scope from±0.6 to±2.4 with the FOAM resolution of 0.2,which greatly reduce the divergence in AV *** infinitely expanded channel capacity is further verified by the improved FOAM resolution of *** with other milestone works,our strategy reaches 3-fold OAM utilization,4-fold information level,and 5-fold OAM *** of the extra advantages of high dimension,high speed,and low divergence,this technology may shed light on the next-generation AV communication.

关键词： infinitely topological fractional

Report of Informal Housing Policy in India

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Finance Research 2018年第3期2卷 108-111页

作者： xi peng The University of Sheffield SheffieldEnglandS10 2TN

Informal housing can be broadly defined into two types:first,those in which occupants illegally occupy a certain area of a residential location and build a dwelling on the land;second,housing or residential areas which do not meet the master plan or building *** report describes and evaluates the infomal housing policies in India,introducing the improvement of the living standards brought on by these policies to the low-income residents of Chennai,while the case of Kannagi Nagar will be used to analyse the adverse effects of said policies.

关键词： Informal Housing Policy Low-income residents Chennai India Report

Bioinspired Self-assembly Nanochaperone Inhibits Tau-Derived PHF6 Peptide Aggregation in Alzheimer’s Disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2022年第9期40卷 1062-1070页

作者： Lin Zhu Ming-Qing Zhang Hao-Ren Jing xi-peng Zhang Lin-Lin Xu Ru-Jiang Ma Fan Huang Lin-Qi Shi State Key Laboratory of Medicinal Chemical Biology Key Laboratory of Functional Polymer Materials of Ministry of EducationCollege of ChemistryNankai UniversityTianjin 300071China Key Laboratory of Radiopharmacokinetics for Innovative Drugs Chinese Academy of Medical Sciencesand Institute of Radiation MedicineChinese Academy of Medical Sciences&Peking Union Medical CollegeTianjin300192China Nankai University School ofMedicine Nankai UniversityTianjinChina Department of Colorectal SurgeryTianjin Union Medical CenterTianjin 300074 China Department of Colorectal Surgery Tianjin Union Medical CenterTianjin 300121China

After repeated frustrations with amyloid beta(Aβ)-targeted clinical trials for Alzheimer’s disease(AD)in recent years,the therapeutic focus of AD has gradually shifted from Aβto tau *** misfolding and aggregation of tau protein into neurofibrillary tangles(NFTs)cause neuron death and synaptic dysfunction,and the deposition of NFTs is more closely related to the severity of AD than Aβ***,it has great potential to target tau protein aggregation for AD *** hexapeptide VQIVYK(known as PHF6)in tau protein has been found to play a dominant role for tau aggregation and was widely used as a model to design tau protein aggregation ***,inspired by natural heat shock protein(HSPs),we fabricated a self-assembly nanochaperone based on mixed-shell polymeric micelle(MSPM)as a novel tau-targeted AD *** tunable phase-separated microdomains on the surface,the nanochaperone could effectively bind with PHF6 aggregates,inhibit PHF6 aggregation,block neuronal internalization of PHF6 species,thus significantly alleviating PHF6 mediated ***,the as-prepared nanochaperone could work with proteinase to facilitate the degradation of PHF6 *** bioinspired nanochaperone demonstrated a new way to target tau protein and provided a promising strategy for AD treatment.

关键词： Alzheimer’s disease Tau protein PHF6 Nanochaperone Inhibition

Spatial Green Belt Development Report in China

在线全文

学校读者我要写书评

暂无评论

Frontiers Research of Architecture and Engineering 2018年第4期1卷 98-102页

作者： xi peng The University of Sheffield SheffieldEnglandS102TNUK

The green belt, located on the outskirts of a metropolis, has many characteristics such as good location, better landscape environment than urban areas, high availability in an original environment, low development costs and large and concentrated open spaces. With the huge population in China, this has led to a shortage of green space per capita and the shortage of recreational space. In view of such conditions, the recreational function of the green belt is very important, and can compensate for the shortcomings of tight urban recreation space. However,there has always been an important question about the scientific aspects and rationality of green belt use and control measures. In this paper, some outcomes of the Chinese green belt policy will be introduced. Then, three advantages and two disadvantages will be shown. Finally, reasons analyse and comparisons between China's main cities and cities with a successfiil green belt will be given.

关键词： Green belt development Advantages and disadvantages Report China

Preparation and Luminescence Properties of Nylon 6 Composite Nanofibers

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Donghua University(English Edition) 2020年第1期37卷 1-9页

作者： ZHANG Man xi peng WANG Yan SHU Dengkun School of Materials Science and Engineering Tiangong UniversityTianjin 300387China State Key Laborary of Separation Membranes&Membrane Process Tianjin 300387China Tianjin Key Laboratory of Advanced Fibers and Energy Storage Tianjin 300387China

The luminescent fibers have a good application *** feature of this paper is that efficient luminescent nylon 6(PA6)composite nanofibers are successfully prepared by *** luminescent PA6 composite nanofibers composed of PA6,Eu(BA)3Phen and Tb(BAO)3Phen(BA=P-methylbenzoic acid,BAO=P-methoxybenzoic acid,and Phen=1,10-phenanthroline).The structure and properties were characterized by scanning electron microscopy(SEM),Fourier transform infrared spectroscopy(FT-IR),fluorescence spectroscopy,and thermogravimetriy(TG)*** correspondence between polymer matrix and as-prepared composite nanofibers properties has also been studied in *** using hexafluoroisopropanol(HFIP)as solvent,Eu(BA)3Phen/PA6 and Tb(BAO)3Phen/PA6 composite nanofibers exhibit good luminescence *** is noted that only 5%rare earth luminescent materials are added to Tb(BAO)3Phen/PA6 composite nanofibers,and the luminescence intensity of the as-prepared nanofibers reaches half that of the pure rare earth luminescent ***,uniform dispersion of pure rare earth luminescent materials in the as-prepared nanofibers gives the composite nanofibers good mechanical properties and thermal *** results provide an important basis for the preparation and wide application of new PA6 luminescent fibers.

关键词： luminescence nanofibers rare earth complex nylon 6(PA6)

We are thrilled to introduce our new column: News and Views

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2018年第1期7卷 1081-1081页

作者： peng xi Department of Biomedical Engineering College of Engineering Peking University No.5 Yiheyuan RoadBeijing 100871China

Science is not only about bold findings;it is also about the scientists in the research *** light of this observation,we are proud to introduce a new column to Light:Science and Applications(LSA):News and *** published in March 2012,Light:Science and Applications has published over 300 high-quality scientific research papers and reviews and achieved an impact factor of 14.098 in 2017(JCR 2016).While we are proud of these achievements,we are constantly looking for new opportunities to better serve our authors and readers—you,the scientists and engineers in the optics ***,we conceived the idea of a brand new column featuring discussions among researchers.

关键词： discussions looking optics

Mega-city Planning Challenges——Taking Beijing as an Example

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers Research of Architecture and Engineering 2019年第1期2卷 12-14页

作者： xi peng The University of Shef..eld Shef..eldEnglandS10 2TNUK

In the past 30 years,China has experienced development at full speed,and the cities have expanded *** have been dozens of megacities with millions of *** to the lack of preparation of various factors,these cities will inevitably also have some urban diseases similar to those in the mega-cities of the *** to develop mega-cities,especially how to ensure the sustainable development of mega-cities,such as Beijing,Shanghai,Guangzhou,etc.,is a question that must be *** paper mainly discusses the challenges faced with city planning,especially for mega-cities,taking Beijing as an example and analyzes from following aspects:institutional challenges,demographic challenges,and environmental challenges,and hopes to provide references for city planners.

关键词： Mega-cities City planning Challenges Beijing

Glutamine mitigates murine burn sepsis by supporting macrophage M2 polarization through repressing the SIRT5-mediated desuccinylation of pyruvate dehydrogenase

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Burns & Trauma 2022年第1期10卷 1-19页

作者： Yuanfeng Zhu xiaoli Chen Yongling Lu Lin xia Shijun Fan Qianying Huang xin Liu xi peng Clinical Medical Research Center Southwest HospitalThird Military Medical University(Army Medical University)Chongqing400038China State Key Laboratory of Trauma Burns and Combined InjurySouthwest HospitalThird Military Medical University(Army Medical University)Chongqing400038China

Background:Alternative(M2)-activated macrophages drive the anti-inflammatory response against sepsis,a leading cause of death in patients suffering from burn *** M2 polarization is intrinsically linked with dominant oxidative phosphorylation(OXPHOS).Glutamine serves as a major anaplerotic source to fuel OXPHOS,but it remains unknown whether glutamine can modulate metabolic checkpoints in OXPHOS that favour M2 *** study aims to explore whether glutamine essentially supports M2 polarization in IL-4-stimulated murine macrophages by sustaining the activity of PDH and whether glutamine augments macrophage M2 polarization and thus alleviates inflammation and organ injury in a murine burn sepsis ***:To understand how glutamine promotes M2 activation in interleukin(IL-4)-treated murine macrophages,we detected glutamine-dependent M2 polarization and its relationship with the pyruvate dehydrogenase(PDH)complex by RT-PCR,flow cytometry and western *** explore how glutamine modulates PDH activity and thus supports M2 polarization,we compared the expression,phosphorylation and succinylation status of PDHA1 and then examined sirtuin SIRT5-dependent desuccinylation of PDHA1 and the effects of SIRT5 overexpression on M2 polarization by RT-PCR,flow cytometry and western *** determine whether glutamine or its metabolites affect M2 polarization,macrophages were cocultured with metabolic inhibitors,and then SIRT5 expression and M2 phenotype markers were examined by RT-PCR,flow cytometry and western ***,to confirm the in vivo effect of glutamine,we established a burn sepsis model by injecting Pseudomonas aeruginosa into burn wounds and observing whether glutamine alleviated proinflammatory injuries by RT-PCR,flow cytometry,western blot,immunofluorescent staining,hematoxylin-eosin staining and enzyme-linked immuno sorbent ***:We showed that consumption of glutamine supported M2 activation in IL-4-treated murine macrophages b

关键词： Glutamine SIRT5 Desuccinylation PDH Macrophages polarization Burn Sepsis