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Revisiting taxonomy,morphological evolution,and fossil calibration strategies in Chloranthaceae

Journal of Systematics and Evolution 2011年第4期49卷 315-329页

作者： Alexandre ANTONELLI taylor S.FEILD Gothenburg Botanical Garden and Department of Plant and Environmental Sciences University of Gothenburg Department of Ecology and Evolutionary Biology University of Tennessee

Chloranthaceae is one of the earliest diverging angiosperm families and is comprised of approximately 75 species in four genera (Chloranthus,Sarcandra,Ascarina,and Hedyosmum).This family has received considerable attention because of its seemingly primitive morphology,disjunct tropical distribution in Asia and America,and extensive fossil record from the Early *** the present study,we reconstructed the phylogeny of Chloran- thaceae based on a combined dataset of three plastid DNA regions and 56 *** then estimated divergence times in the family using two relaxed molecular clock methods (BEAST and penalized likelihood).We focused on testing the influence of fossil taxa in calibrating the molecular phylogeny,and on assessing the current taxonomy of the family in light of the phylogenetic *** results indicate that most intrageneric divisions within Asca-rina and Hedyosmum are not *** results from the dating analysis suggest that the Hedyosmum-like fossil Asteropollis represents a stem lineage of Hedyosmum,as has been suggested previously from morphological *** contrast,our results indicate that the Chloranthus-like fossil Chloranthistemon,previously suggested on morphological grounds to be a stem relative of Chloranthus,may,instead,belong to the branch leading to the clade Chloranthus + *** median crown ages of Chloranthus,Sarcandra,Ascarina,and Hedyosmum estimated in the BEAST analysis were 26.3,9.5,31.0 and 45.8 million years ago (Ma),respectively,whereas the divergence between Chloranthus and Sarcandra,the splitting of Ascarina with the former two genera,and Hedyos- mum separating from the three genera were estimated to 63.8,95.7 and 111.1 *** present study sheds further light on the temporal evolution of Chloranthaceae and exemplifies how molecular dating analyses may be used to explore alternative phylogenetic placements of fossil taxa.

关键词： angiosperm evolution Asteropollis Chloranthaceae Chloranthistemon molecular dating phylogeny.

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Host RNA circles and the origin of hepatitis delta virus

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World Journal of Gastroenterology 2014年第11期20卷 2971-2978页

作者： John M taylor Fox Chase Cancer Center PhiladelphiaPA 19111United States

Recent reports show that many cellular RNAs are processed to form circular species that are relatively abundant and resistant to host *** some cases,such circles actually bind host *** depletion of available microRNAs appears to have biological roles;for instance,in homeostasis and *** findings regarding host RNA circles support a speculative reappraisal of the origin and mode of replication of hepatitis delta virus,hepatitis delta virus(HDV),an agent with a small circular RNA genome;specifically,it is proposed that in hepatocytes infected with hepatitis B virus(HBV),some viral RNA species are processed to circular forms,which by a series of chance events lead to an RNA that can be both replicated by host enzymes and assembled,using HBV envelope proteins,to form particles some of which are *** a model also may provide some new insights into the potential pathogenic potential of HDV *** return,new insights into HDV might provide information leading to a better understanding of the roles of the host RNA circles.

关键词： Hepatitis B virus Hepatitis delta virus Circular RNA Ribozymes MicroRNA

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Continuous flow synthesis of plasmonic gold patches and nearly-complete nanoshells on polystyrene core particles

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Particuology 2023年第4期75卷 137-150页

作者： Thomas Meincke Robin N.Klupp taylor Institute of Particle Technology Friedrich-Alexander University Erlangen-NürnbergCauerstrasse 491058ErlangenGermany Collaborative Research Center 1411-Design of Particulate Products Friedrich-Alexander University Erlangen-Nürnberg Cauerstrasse 391058 Erlangen Germany

We describe the development of a T-mixer based continuous flow process for the coating of 86-500 nm diameter spherical polystyrene particles with thin gold patches by heterogeneous nucleation and *** establishing a suitable flow rate for good mixing and sufficiently uniform product morphology we systematically investigate the main reaction *** reveals a considerable tunability of the patch morphology and,by virtue of the localized surface plasmon resonance of gold,the optical properties of the product *** order to further widen the range of nanostructures accessible by our process,a second T-mixer was *** introduced new gold precursor,leading to further growth of the patches that were formed after the first *** this approach,nearly-complete gold nanoshells could be produced in high yield on both small and large core particles,without the unwanted production of free-standing gold *** to the pronounced optical properties of nearly-complete gold nanoshells on small core particles,we could estimate from electrodynamic sim-ulations the equivalent shell thickness to be as low as 8.6 *** is significantly thinner than can be routinely achieved using the standard seeded growth approach to synthesise gold *** results are therefore highly promising for the gram-scale synthesis of plasmon resonant nanostructures with designed optical properties.

关键词： Continuous flow Core-shell particles Patchy particles Nucleation Diffusion limited growth

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Methodology of Single Crystal Growth and Microstructure Analysis of CoTi(Zr) Intermetallic Compounds

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Journal of Materials Science & Technology 2005年第6期21卷 817-821页

作者： Mike L.JENKINS Glyn taylor Department of Materials University of Oxford Parks Road Oxford OX1 3PH UK

The effects of preparation and crystal growth methods on the microstructure, composition, and oxidation of CoTi（Zr） intermetallics were dealt with . A group of methods has been used to produce CoTi and CoTi（Zr） crystals to prevent the formation of titanium oxide particles during melting and crystal growth. The results show that more oxides formed when using powdered starting materials even though the metals handled were and melted under an inert gas atmosphere; using bulk starting materials produced alloys showed less oxidation than powders, but adding a small amount of AI to getter the oxygen was not sufficient to prevent TiO2 formation. However, using a slightly reducing atmosphere during initial melting was highly effective in reducing the formation of oxide. Crystal growth carried out in Ar did not reduce the amount of oxide but only redistributed the particles. TiO2 particles were found only in the grain boundaries after crystal growing, where they obstructed grain growth. Crystal growth in a vacuum was found to be essential in producing oxide free crystals. A seed selection technique was developed and used in growing CoTi single crystals. The microstructures of the samples were determined using optical microscopy, scanning electron microscopy and transmission electron microscopy, including the morphologies, grain sizes, oxide distributions and crystal structure confirmation.

关键词： CoTi CoTi(Zr) Intermetallics Crystal growth Nicrostructure

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妊娠母猪分阶段饲养

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国外畜牧学（猪与禽） 2013年第3期33卷 39-41页

作者：傅强 William H.Close Jules a.taylor-Pickard Close咨询公司奥特奇公司

母猪妊娠期中的每一天均是不一样的。每一天都标志着未出生仔猪的生长进一步加快—理论上,每一天都需要一套新的营养方案。通过将妊娠期分为三个阶段,母猪的营养需求能够被更清楚地详细定义:它们需要什么?

关键词：妊娠母猪分阶段饲养营养方案营养需求妊娠期仔猪

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Short-term Forecasting of Individual Residential Load Based on Deep Learning and K-means Clustering

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CSEE Journal of Power and Energy Systems 2021年第2期7卷 261-269页

作者： Fujia Han Tianjiao Pu Maozhen Li Gareth taylor Artificial Intelligence Application Department China Electric Power Research InstituteBeijing 100192China Department of Electronic and Computer Engineering Brunei University LondonUxbridgeUKUB83PH Brunei Institute of Power Systems Brunei University LondonUxbridgeUKUB83PH

In order to currently motivate a wide range of various interactions between power network operators and electricity customers,residential load forecasting plays an increasingly important role in demand side response(DSR).Due to high volatility and uncertainty of residential load,it is significantly challenging to forecast it ***,this paper presents a short-term individual residential load forecasting method based on a combination of deep learning and k-means clustering,which is capable of effectively extracting the similarity of residential load and performing residential load forecasting accurately at the individual *** first makes full use of k-means clustering to extract similarity among residential load and then employs deep learning to extract complicated patterns of residential *** presented method is tested and validated on a real-life Irish residential load dataset,and the experimental results suggest that it can achieve a much higher prediction accuracy,in comparison with a published benchmark method.

关键词： Deep learning demand side response(DSR) interactions k-means clustering residential load forecasting similarity

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Verifiable Badging System for scientific data reproducibility

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Blockchain(Research and Applications) 2021年第2期2卷 68-81页

作者： Swapna Krishnakumar Radha ian taylor Jarek Nabrzyski Iain Barclay Center for Research Computing University of Notre DameIN46556USA School of Computer Science and Informatics Cardiff UniversityCardiffWalesCF103ATUK

Reproducibility can be considered as one of the basic requirements to ensure that a given research finding is accurate and *** paper presents a new layered approach that allows scientific researchers to provide a)data to fellow researchers to validate research and b)proofs of research quality to funding agencies,without revealing sensitive details associated with the *** conclude that by integrating smart contracts,blockchain technology,and self-sovereign identity into an automated system,it is possible to assert the quality of scientific materials and validate the peer review process without the need of a central authority.

关键词： Blockchain technology Self-sovereign identity Decentralized identifiers Verifiable credentials Smart contracts

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Non-contact method to reduce contact problems between sample and electrode in dielectric measurements

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High Voltage 2020年第6期5卷 753-761页

作者： Jing Hao Xiangdong Xu Nathaniel taylor Electromagnetic Engineering KTH Royal Institute of Technology10044 StockholmSweden Electric Power Engineering Chalmers University of Technology41296 GothenburgSweden

Dielectric response measurement is a widely used technique for characterising dielectric materials in terms of their capacitance and dielectric loss. However, the widely used approach with contact between samples and electrodes can in some cases limit the accuracy of the measurement. The authors introduce an easily realised electrode arrangement for non-contact measurements, which avoids these contact problems. The performance of the electrode arrangement in terms of the edge effect is assessed. The non-contact and contact methods are compared based on error-sensitivity analysis and experimental results. Differences are studied further, with attention to contact pressure. The non-contact method is also compared experimentally with the one-sided non-contact method. Air-reference measurements, comparing the sample to an air-gap for improved calibration, are used for all measurements. The results show that the non-contact method can be an alternative to reduce contact problems between the sample and electrodes, although error sensitivity can be higher when the non-contact method is used. The non- contact method can decrease the influence of the pressure applied to the sample compared to the contact method, and can also reduce the problem of poor contact that can arise from the absence of pressure in the one-sided non-contact method.

关键词： method. dielectric electrode

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Wrapping up the role of pericytes in Parkinson's disease

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Neural Regeneration Research 2023年第11期18卷 2395-2396页

作者： taylor John Stevenson Birger Victor Dieriks Department of Pharmacology University of AucklandAucklandNew Zealand Centre for Brain Research University of AucklandAucklandNew Zealand Department of Anatomy and Medical Imaging University of AucklandAucklandNew Zealand

Pericytes are classically defined as contra ctile cells within the central nervous system that regulate blood flow and permeability of the blood-brain barrier(BBB).This one-sided view is gradually changing,and pericytes are now considered versatile cells that can switch their function in response to different stimuli(Uemura et al.,2020).In addition to their role as gatekeepers of the BBB and maintaining homeostasis of the brain’s microenvironment through adj usting the vascular intraluminal dia meter,pericytes are both sensors and initiators of inflammation.

关键词： homeostasis pericyte

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低温抽气──工艺和应用

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真空 1985年第3期 59-62页

作者： Leon E.Mc Crary ,Kenneth a.taylor ,慈风云

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