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Mafic Archean continental crust prohibited exhumation of orogenic UHP eclogite

Geoscience Frontiers 2021年第5期12卷 411-420页

作者： Richard M.Palin James D.P.moore Zeming Zhang Guangyu Huang Jon Wade Brendan Dyck Department of earth Sciences University of OxfordOxford OX13ANUnited Kingdom earth Observatory of Singapore Nanyang Technological UniversitySingapore Institute of Geophysics SGEESVictoria University of WellingtonWellingtonNew Zealand Institute of Geology Chinese Academy of Geological SciencesBeijing 100037China State Key Laboratory of Lithospheric evolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Department of earth Environmental and Geographical SciencesUniversity of British ColumbiaKelowna V1V 1V7Canada

The absence of ultrahigh pressure(UHP)orogenic eclogite in the geological record older than c.0.6 Ga is problematic for evidence of subduction having begun on earth during the Archean(4.0-2.5 Ga).Many eclogites in Phanerozoic and Proterozoic terranes occur as mafic boudins encased within low-density felsic crust,which provides positive buoyancy during subduction;however,recent geochemical proxy analysis shows that Archean continental crust was more mafic than previously thought,having greater proportions of basalt and komatiite than modern-day ***,we show via petrological modelling that secular change in the petrology and bulk composition of upper continental crust would make Archean continental terranes negatively buoyant in the mantle before reaching UHP *** or delaminated Archean continental crust passes a point of no return during metamorphism in the mantle prior to the stabilization of coesite,while Proterozoic and Phanerozoic terranes remain positively buoyant at these *** orogenic eclogite may thus readily have formed on the Archean earth,but could not have been exhumed,weakening arguments for a Neoproterozoic onset of subduction and plate ***,isostatic balance calculations for more mafic Archean continents indicate that the early earth was covered by a global ocean over 1 km deep,corroborating independent isotopic evidence for large-scale emergence of the continents no earlier than c.3 *** findings thus weaken arguments that early life on earth likely emerged in shallow subaerial ponds,and instead support hypotheses involving development at hydrothermal vents in the deep ocean.

关键词： Archean eclogite exhumation Secular change Geodynamics Density

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evolutionary Lineages and Functional Diversification of Plant Hexokinases

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Molecular Plant 2010年第2期3卷 334-346页

作者： Rucha Karve Michael Lauria Annie Virnig Xiaoxia Xia Bradley L. Rauh Brandon d. moore Department of Genetics and Biochemistry Clemson University Clemson SC 29634 USA

Sequencing data from 10 species show that a plant hexokinase （HXK） family contains 5-11 genes. Functionally, a given family can include metabolic catalysts, glucose signaling proteins, and non-catalytic, apparent regulatory enzyme homologs. This study has two goals. The first aim is to develop a predictive method to determine which HXK proteins within a species have which type of function. The second aim is to determine whether HXK-dependent glucose signaling proteins occur among more primitive plants, as well as among angiosperms. Using a molecular phylogeny ap- proach, combined with selective experimental testing, we found that non-catalytic HXK homologs might occur in all plants, including the relatively primitive Selaginella moellendorffi. We also found that different lineages of angiosperm HXKs have apparent conserved features for catalytic activity and for sub-cellular targeting. Most higher-plant HXKs are expressed predominantly at mitochondria, with HXKs of one lineage occurring in the plastid, and HXKs of one monocot lineage occurring in the cytosol. Using protoplast transient expression assays, we found that HXK glucose signaling pro- teins occur likely in all higher plants and in S. moellendorffi as well. Thus, the use of glucose by plant HXK isoforms in metabolism and/or as a regulatory metabolite occurs as widespread, conserved processes.

关键词： Hexokinase molecular phylogeny moonlighting proteins plant glucose signaling Selaginella.

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The importance of non-carbonate mineral weathering as a soil formation mechanism within a karst weathering profile in the SPeCTRA Critical Zone Observatory, Guizhou Province,China

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Acta Geochimica 2017年第3期36卷 566-571页

作者： Oliver W.moore Heather L.Buss Sophie M.Green Man Liu Zhaoliang Song School of earth Sciences University of Bristol Geography College of Life and Environmental SciencesUniversity of Exeter School of Water Resources and environment China University of Geosciences (Beijing) Institute of the Surface-earth System Science Research Tianjin University

Soil degradation, including rocky desertification,of the karst regions in China is severe. Karst landscapes are especially sensitive to soil degradation as carbonate rocks are nutrient-poor and easily eroded. Understanding the balance between soil formation and soil erosion is critical for long-term soil sustainability, yet little is known about the initial soil forming processes on karst terrain. Herein we examine the initial weathering processes of several types of carbonate bedrock containing varying amounts of non-carbonate minerals in the SPeCTRA Critical Zone Observatory, Guizhou Province, Southwest China. We compared the weathering mechanisms of the bedrock to the mass transfer of mineral nutrients in a soil profile developed on these rocks and found that soil formation and nutrient contents are strongly dependent upon the weathering of interbedded layers of more silicate-rich bedrock(marls). Atmospheric inputs from dust were also detected.

关键词： Critical zone Chemical weathering Karst Desertification Guizhou Province

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Quality assessment of OpenStreetMap data using trajectory mining

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Geo-Spatial Information Science 2016年第1期19卷 56-68页

作者： Anahid Basiri Mike Jackson Pouria Amirian Amir Pourabdollah Monika Sester Adam Winstanley Terry moore Lijuan Zhang The Nottingham Geospatial Institute The University of NottinghamNottinghamUK Ordnance Survey SouthamptonUK The School of Computer Science The University of NottinghamNottinghamUK Institute of Cartography and Geoinformatics(IKG) Leibniz UniversitätHannoverGermany e Department of Computer Science Maynooth UniversityMaynoothIreland Faculty of Civil and environmental engineering The Technion-Israel Institute of TechnologyHaifaIsrael

OpenStreetMap(OSM)data are widely used but their reliability is still *** contributors to OSM have not been trained in geography or surveying and consequently their contributions,including geometry and attribute data inserts,deletions,and updates,can be inaccurate,incomplete,inconsistent,or *** are some mechanisms and applications dedicated to discovering bugs and errors in OSM *** systems can remove errors through user-checks and applying predefined rules but they need an extra control process to check the real-world validity of suspected errors and *** paper focuses on finding bugs and errors based on patterns and rules extracted from the tracking data of *** underlying idea is that certain characteristics of user trajectories are directly linked to the type of *** such rules,some sets of potential bugs and errors can be identified and stored for further investigations.

关键词： Spatial data quality OpenStreetMap(OSM) trajectory data mining

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Ascovirus and its evolution

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中国病毒学 2007年第2期22卷 137-147页

作者： Xiao-Wen Cheng Xiu-Feng Wan Jianli Xue Richard C. moore Department of Microbiology Department of Botany Miami University Oxford Ohio 45056 USA

Ascoviruses, iridoviruses, asfarviruses and poxviruses are all cytoplasmic DNA viruses. The evolutionary origins of cytoplasmic DNA viruses have never been fully addressed. Morphological, genetic and molecular data were used to test if all four cytoplasmic virus families (Ascoviridae, Iridoviridae, Asfarviridae, and Poxvirirdae) evolved from nuclear replicating baculoviruses and how the four virus groups are related. Molecular phylogenetic analyses using DNA polymerase predicted that cytoplasmic DNA viruses might have evolved from nuclear replicating baculoviruses, and that poxviruses and asfarviruses share a common ancestor with iridoviruses. These three cytoplasmic viruses again shared a common ancestor with ascoviruses. Morphological and genetic data predicted the same evolutionary trend as molecular data predicted. A genome sequence comparison showed that ascoviruses have more baculovirus protein homologues than do iridoviruses, which suggested that ascoviruses have evolved from baculoviruses and iridoviruses evolved from ascoviruses. Poxviruses showed genetic and morphological similarity to other cytoplamic viruses, such as ascoviruses, suggesting it has undergone reticulate evolution via hybridization, recombination and lateral gene transfer with other viruses. Within the ascovirus family, we tested if molecular phylogenetic analyses agree with biological inference; that is, ascovirus had an evolutionary trend of increasing genome size, expanding host range and widening tissue tropism for these viruses. Both molecular and biological data predicted this evolutionary trend. The phylogenetic relationship among the four species of ascovirus was predicted to be that TnAV-2 and HvAV-3 shared a common ancestor with SfAV-1 and the three virus species again shared a common ancestor with DpAV-4.

关键词：细胞病毒分子种系系统识别技术

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Integrity monitoring of fixed ambiguity Precise Point Positioning(PPP)solutions

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Geo-Spatial Information Science 2013年第3期16卷 141-148页

作者： Altti JOKINeN Shaojun FeNG Wolfgang SCHUSTeR Washington OCHIeNG Chris HIDe Terry moore Chris HILL Department of Civil and environmental engineering Imperial College London Centre for Transport StudiesLondon SW72AZUK Nottingham Geospatial Institute(NGI) University of NottinghamNottingham NG72TUUK

Traditional positioning methods,such as conventional Real Time Kinematic(cRTK)rely upon local reference networks to enable users to achieve high-accuracy *** need for such relatively dense networks has significant cost *** Point Positioning(PPP)on the other hand is a positioning method capable of centimeter-level positioning without the need for such local networks,hence providing significant cost benefits especially in remote *** paper presents the state-of-the-art PPP method using both GPS and GLONASS measurements to estimate the float position solution before attempting to resolve GPS integer *** monitoring is carried out using the Imperial College Carrier-phase Receiver Autonomous Integrity Monitoring method.A new method to detect and exclude GPS base-satellite failures is developed.A base-satellite is a satellite whose measurements are differenced from other satellite’s measurements when using between-satellite-differenced measurements to estimate *** failure detection and exclusion methods are tested using static GNSS data recorded by International GNSS Service stations both in static and dynamic processing *** results show that failure detection can be achieved in all cases tested and failure exclusion can be achieved for static *** the kinematic processing cases,failure exclusion is more difficult because the higher noise in the measurement residuals increases the difficulty to distinguish between failures associated with the base-satellite and other satellites.

关键词： Precise Point Positioning(PPP) integrity ambiguity resolution failure exclusion

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epigenetics of gastroenteropancreatic neuroendocrine tumors:A clinicopathologic perspective

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World Journal of Gastrointestinal Oncology 2017年第9期9卷 341-353页

作者： Brendan M Finnerty Katherine D Gray Maureen D moore Rasa Zarnegar Thomas J FaheyⅢ Department of Surgery New York Presbyterian HospitalWeill Cornell MedicineNew YorkNY 10065United States

Gastroenteropancreatic neuroendocrine tumors(GeP-NeTs) are a heterogeneous group of rare tumors whose site-specific tumor incidence and clinical behavior vary widely. Genetic alterations associated with familial inherited syndromes have been well defined; however, the genetic profile of sporadic tumors is less clear as their tumorigenesis does not appear to be controlled by classic oncogenes such as P53, RB, or KRAS. even within GeP-NeTs, there are no common oncogenic drivers; for example, DAXX/ATRX mutations are strongly implicated in the tumorigenesis of pancreatic but not small bowel NeTs. Accordingly, the dysregulation of epigenetic mechanisms has been hypothesized as a potential regulator of GePNeT tumorigenesis and has become a major focus of recent studies. Despite the heterogeneity of tumor cohorts evaluated in these studies, it is obvious that there are methylation patterns, chromatin remodeling alterations, and microR NA and long non-coding RNA(lncR NA) differential expression profiles that are distinctive of GePNeTs, some of which are correlated with significant differences in clinical outcomes. Several translational studies have provided convincing data identifying potential prognostic biomarkers, and some of these have demonstrated preliminary success as serum biomarkers that can be used clinically. Nevertheless, there are many opportunities to further define the mechanisms by which these epigenetic modifications influence tumorigenesis, and this will provide better insight into their prognostic and therapeutic utility. Furthermore, these findings form the foundation for future studies evaluating the clinical efficacy of epigenetic modifications as prognostic biomarkers, as well as potential therapeutic targets.

关键词： epigenetics Carcinoid Neuroendocrine MicroRNA Methylation Histone modifications Chromatin remodeling LncRNA

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effect of glaucoma on identification of bottle cap color in ophthalmic medications

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International Journal of Ophthalmology(english edition) 2019年第1期12卷 169-171页

作者： Jonathan Paul Jon David Hammer Roozbeh Akhtari Brede Skillings Daniel B.moore Department of Ophthalmology University of Kentucky Northwell Health Department of Ophthalmology Krieger eye Institute

A prospective, nonrandomized, observational trial of 60 glaucoma patients to correlate visual acuity and visual field with ability to distinguish bottle cap color of commonly used ophthalmic medications was conducted. A total of 103 eyes from 60 patients(30 women) were evaluated. The mean logMAR acuity was 0.34±0.54(approximately 20/45 Snellen acuity), average Humphrey Visual Field(HVF) mean deviation was-8.58±8.69 dB, mean Ishihara plates(out of 14) were 11.78±4.15, and bottle cap color score(out of 10) was 8.56±2.51. Multiple linear regression analysis revealed an independent correlation of visual acuity(P=0.0137) and Ishihara score(Pe, but no significant effect with visual field mean deviation(P>0.05). Glaucoma patients with poor visual acuity, but not necessarily advanced visual field loss, are likely to have difficultly identifying the color of their bottle caps. Physicians should be cognizant of this potential issue when reviewing medications with patients.

关键词： glaucoma color vision compliance medication patient communication

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NMR double resonance study of azide binding to cytochrome c

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Chinese Journal of Chemistry 1992年第1期10卷 40-44页

作者： CONCAR D. moore G.R. WILLIAMS R.J.P. Inorganic Chemistry Laboratory University of OxfordUK

equilibrium constants for the binding of azide to ferri-cytochrome c at temperature range of 305—325 K were determined at pH=7 by using ~1H double resonance *** values(⊿H^o=-34.5 kJ/mol,⊿S^o=-100 J/mol)were obtained from van't Hoff's relation and were compared with those for azide binding to other ferric *** reason of lower affinity of cytochrome c for azide was discussed.

关键词： NMR double resonance study of azide binding to cytochrome c

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Reconstructing landscapes of ungulate parturition and predation using vegetation phenology

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Current Zoology 2022年第3期68卷 275-283页

作者： Paige VAN De VUURST Seth A.moore edmund J.ISAAC Yvette CHeNAUX-IBRAHIM Tiffany M.WOLF Luis e.eSCOBAR Department of Fish and Wildlife Conservation Virginia TechBlacksburgVA 24061USA Department of Biology and environment Grand Portage Band of Lake Superior ChippewaGrand PortageMN 55605USA Veterinary Population Medicine University of MinnesotaSt PaulMN 55108USA

enhanced vegetation index(eVI)data can be used to identify and define the space in which ungulates practice parturition and encounter *** study explores the use of eVI data to identify landscapes linked to ungulate parturition and predation events across space,time,and environmental *** a case study,we used the moose population(Alces alces)of northern Minnesota in the *** remotely sensed eVI data rasters and global positioning system collar data,we quantified how vegetation phenology and moose movement shaped the births and predation of 52 moose calves from 2013 to 2020 on or adjacent to the Grand Portage Indian *** known sources of predation were American black bears(Ursus americanus,n=22)and gray wolves(Canis lupus,n=28).Satellite-derived data summarizing seasonal landscape features at the local level revealed that landscape heterogeneity use by moose can help to quantitatively identify landscapes of parturition and predation in space and time across large *** phenology proved to be differentiable between adult moose ranges,sites of cow parturition,and sites of calf *** characteristics of each moose group were consistent and tractable based on environment,suggesting that sites of parturition and predation of moose are predictable in space and *** is possible that moose selected specific landscapes for parturition despite risk of increased predation of their calves,which could be an example of an"ecological trap."This analytical framework can be employed to identify areas for future ungulate research on the impacts of landscape on parturition and predation dynamics.

关键词： bear eVI moose parturition predation prey vegetation phenology

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