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Sexual dimorphism in water and nitrogen use strategies in Honckenya peploides: timing matters

Journal of Plant Ecology 2017年第4期10卷 702-712页

作者： julia.Sánchez Vilas Rubén Retuerto Organisms and Environment Division Sir Martin Evans BuildingCardiff School of BiosciencesMuseum AvenueCardiff UniversityCardiff CF103AXUK Departamento de Biología Celular y Ecología Área de EcologíaFacultad de BiologíaUniversidade Santiago de CompostelaCampus VidaRúa de Lope Gómez de Marzoas/n15782 Santiago de CompostelaA CoruñaSpain

Aims Sexes of dimorphic species often differ in ecophysiological traits and display spatial *** differences have been interpreted as an evolved response of the sexes to meet the specific resource demands associated with *** may differ not only in the amount of resources allocated to reproduction but also in the tim-ing of allocation to *** this study,we hypothesize that as a consequence of their specific resource demands for reproduction,the sexes of the dune plant Honckenya peploides differ in terms of tempo-ral patterns of water use efficiency and nitrogen use and *** Water use efficiency,as inferred from leaf carbon isotope discrimi-nation(Δ^(13)C),nitrogen use,estimated by leaf nitrogen isotope com-position(δ^(15)N),and the foliar carbon and nitrogen contents were measured in males and females at three different points in *** Findings Females had greater water use efficiency than males,regardless of *** ratio of N^(15) to N^(14) did not change with time in males,but significantly decreased in August for *** total N content in the leaf tissues of females decreased as the season progressed,while in males a decrease was only found from April to June and then it remained constant from June to August.A similar pattern,but reversed,was followed by the foliar C/N ***,nega-tive relationships between leafΔ^(13)C and N content were found at all times for males and only at the end of the season for ***,our hypothesis that sex-specific patterns of nitrogen and water use efficiency will depend on time was ***,our results highlight the importance of including time in studies of sex-ual dimorphism,and also the role that physiological specialization plays in meeting the specific demands associated with reproduction.

关键词： cost of reproduction Honckenya peploides leaf nitrogen content sexual dimorphism stable isotopes water use efficiency

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Outcompeted by an invader?interference and exploitative competition between tropical house gecko(Hemidactylus mabouia)and Barbados leaf-toed gecko(Phyllodactylus pulcher)for diurnal refuges in anthropogenic coastal habitats

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integrative Zoology 2016年第3期11卷 229-238页

作者： Robert WiLLiAMS Angelo P.PERNETTA julia.A.HORROCKS Ecology and Conservation Research Group School of Pharmacy and Biomolecular SciencesUniversity of BrightonBrightonUK Ecology and Conservation Research Group University of BrightonHastingsUK Department of Biological and Chemical Sciences University of the West IndiesBarbadosWest Indies

House geckos in the genus Hemidactylus are highly successful colonizers of regions beyond their native range,with colonization often resulting in displacement of native gecko species through competitive interactions for daytime refuge(crevices)and prey *** report on data collected from nighttime surveys undertaken in April-may 2014 on Barbados,West indies,that focused on the distribution and abundance of the endemic Barbados leaf-toed gecko(Phyllodactylus pulcher)and the introduced tropical house gecko(Hemidactylus mabouia)along unlit coastal walls and among boulders in the grounds of a hotel *** contrast to patterns of displacement of native species by *** seen elsewhere,*** was more abundant than *** on coastal walls,whereas the latter was found in greater numbers using boulders at this *** and boulders differed with regard to availability of diurnal refugia suitable for geckos,with the walls having high frequency of small crevices with openingsing very little cover other than the underside of the boulder *** investigate whether this niche separation was a result of differences in diurnal refuge use between the species,we conducted experimental trials in which geckos were allowed to select between refugia with different *** species selected for narrower and warmer refugia,and refugia that had been previously occupied by the other *** shared preferences for refugia type suggest that other factors underlie the niche separation observed in the *** supporting high densities of ***,coastal walls could offer important secondary habitat by augmenting the natural cliff side habitat of this endemic gecko,a finding that could be exploited for the conservation of this candidate species for Critically Endangered classification.

关键词： Barbados leaf-toed gecko Hemidactylus island endemic Phyllodactylus tropical house gecko

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A user perspective on future cloud-based services for Big Earth data

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international Journal of Digital Earth 2021年第12期14卷 1758-1774页

作者： julia.Wagemann Stephan Siemen Bernhard Seeger Jörg Bendix Laboratory of Climatology and Remote Sensing(LCRS) Faculty of GeographyUniversity of Marburg Forecast Department European Centre for Medium-Range Weather Forecasts(ECMWF) Department of mathematics and Computer Science University of Marburg

Cloud-based services introduce a paradigm shift in how users access,process and analyse Big Earth data.A key challenge is to align the current state of how users access,process and analyse the data with trends and roadmaps large data organisations *** addition,due to the increased availability of open data,a more diverse user base wants to take advantage of Earth science data leading to new user *** run a web-based survey among Big Earth data users to better understand the motivation to migrate to cloud-based services as well as the challenges and opportunities that might *** show an overall interest in moving to cloud-based services but air an insufficient literacy in cloud systems and a lack of trust due to security concerns and opacity of emerging *** gaps demand efforts on three ***,cloud services shall be targeted at intermediate users instead of policy-and decision-makers and over-engineered systems with a high level of abstraction should be ***,more substantial capacity-building efforts are required to decrease the existing gap in cloud skills and ***,a cloud certification mechanism could help in building up overall trust in cloud-based services.

关键词： User requirements cloudbased services Big Earth data open data

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Calcium phosphate coatings enhance biocompatibility and degradation resistance of magnesium alloy:Correlating in vitro and in vivo studies

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Bioactive materials 2021年第5期6卷 1223-1229页

作者： julia.Gao Yingchao Su Yi-Xian Qin Department of Biomedical Engineering Stony Brook UniversityStony BrookNY11794United States

magnesium(Mg)and its alloys are promising biodegradable materials for orthopedic ***,one of the major problems is their rapid degradation rate with quick evolution of hydrogen *** overcome this problem,calcium phosphate(CaP)coatings have been used to improve the degradation resistance and the biocompatibility of Mg *** study focuses on the comparison and correlation of the in vitro and in vivo degradation and biocompatibility behaviors of these materials.A CaP coating consisting of dicalcium phosphate dihydrate(DCPD)was deposited on an AZ60 Mg alloy by the chemical conversion ***,the in vitro degradation testing including electrochemical and immersion tests,and in vivo implantation of the CaP coated Mg alloy were conducted to compare the degradation ***,the in vitro cell behavior and in vivo bone tissue response were also compared on both uncoated and CaP-coated Mg *** showed that the CaP coating provided the Mg alloy with significantly better biodegradation behavior and *** in vitro and in vivo biocompatibility tests exhibited good consistency while not the case for *** showed that the in vitro electrochemical test could be a quick screening tool for the biodegradation rate,while the in vitro immersion degradation rate was often 2-4 folds faster than the in vivo degradation rate.

关键词： magnesium implants Calcium phosphate Biodegradation Cytocompatibility Bone regeneration

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Repression of the Arabidopsis thaliana Jasmonic Acid/Ethylene-induced Defense Pathway by TGA-interacting Glutaredoxins Depends on Their C-Terminal ALWL Motif

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Molecular Plant 2012年第4期5卷 831-840页

作者： mark Zander Shuxia Chen julia.imkampe Corinna Thurow Christiane Gatz Albrecht-von-Hailer-institute for Plant Sciences Georg-August-University Gottingen Julia-Lermontowa-Weg 3 D-37077 Gottingen Germany College of Horticulture Northwest A&F University Taicheng Road 3 Yangling Shaanxi 712100 PR China

Glutaredoxins are small heat-stable oxidoreductases that transfer electrons from glutathione （GSH） to oxi- dized cysteine residues, thereby contributing to protein integrity and regulation. in Arabidopsis thaliana, floral glutare- doxins ROXY1 and ROXY2 and pathogen-induced ROXY19/GRX480 interact with bZiP transcription factors of the TGACG （TGA） motif-binding family. ROXY1, ROXY2, and TGA factors PERiANTHiA, TGA9, and TGA10 play essential roles in floral development. in contrast, ectopically expressed ROXY19/GRX480 negatively regulates expression of jasmonic acid （JA）/ ethylene （ET）-induced defense genes through an unknown mechanism that requires clade ii transcription factors TGA2, TGA5, and/or TGA6. Here, we report that at least 17 of the 21 land plant-specific glutaredoxins encoded in the Arabidopsis genome interact with TGA2 in a yeast-two-hybrid system. To investigate their capacity to interfere with the expression of JA/ET-induced genes, we developed a transient expression system. Activation of the ORA59 （OCTADECANOiD-RESPONSiVE ARABiDOPSiS AP2/ERF-domain protein 59） promoter by transcription factor EiN3 （ETHYLENE iNSENSiTVE 3） was sup- pressed by co-expressed ROXY19/GRX480. Suppression depended on the L＊＊LL motif in the C-terminus of ROXY19/ GRX480. This putative protein interaction domain was recently described as being essential for the TGA/ROXY interaction. Ten of the 17 tested ROXY proteins suppressed ORA59 promoter activity, which correlated with the presence of the C-terminal ALWL motif, which is essential for ROXY1 function in flower development. ROXY19/GRX480-mediated repres- sion depended on the GSH binding site, suggesting that redox modification of either TGA factors or as yet unknown target proteins is important for the suppression of ORA59 promoter activity.

关键词： Arabidopsis thaliana cross-talk defense ethylene jasmonic acid glutaredoxins salicylic acid.

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Can back-calculated lengths based on otoliths measurements provide reliable estimates of Atlantic halibut(Hippoglossus hippoglossus)growth in the Gulf of maine (U.S.A.)?

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Aquaculture and Fisheries 2017年第1期2卷 24-33页

作者： julia.Beaty Yong Chen Mid-Atlantic Fishery management Council DoverDE 19904USA School of marine Sciences University of MaineOronoME 04469USA

Atlantic halibut(Hippoglossus hippoglossus,Linnaeus,1758)are a data-poor stock within the waters of the United *** study evaluated the use of otolith measurements to back-calculate lengths of Atlantic halibut at previous ***-calculations have proven useful for estimating length at age and growth rates of other *** the best knowledge of the authors,this study is the first to document the use of this method for Atlantic *** back-calculations rely on a few key assumptions,such as proportionality of fish length and otolith length,which are not always *** study shows that backcalculations using the Fraser-Lee method can provide reasonable estimates of Atlantic halibut length at previous ages,especially when samples from young halibut are included to improve estimates of the intercept of the linear *** on back-calculated estimates,female and male halibut in the Gulf of maine showed different growth rates after age *** was no evidence of changes in growth rates over an approximately 15 year time *** caught in the Gulf of maine and on the neighboring Scotian Shelf showed some differences in growth rates;however,the results did not support strong conclusions about differences between the two regions as the direction of the differences was not consistent between the sexes and previous tagging studies have shown extensive movement between the two *** finding of reasonably accurate back-calculated lengths at previous ages is important for this data-poor species,as back-calculations increase the amount of information that can be obtained from otoliths.

关键词： Otolith Back-calculation Growth Gulf of maine Hippoglossus hippoglossus

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Disaster Tales as Communication Tool for increasing Risk Resilience

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international Journal of Disaster Risk Science 2021年第3期12卷 341-354页

作者： Paola mazzoglio Stefano macchia Enrico Gallo julia.Winter Pierluigi Claps Department of Environment Land and Infrastructure Engineering(DIATI-Dipartimento di Ingegneria dell’Ambientedel Territorio e delle Infrastrutture)Politecnico di Torino10129 TorinoItaly Comune di Torino 10152 TorinoItaly PwC(PricewaterhouseCoopers)italy 10122 TorinoItaly

Agencies in charge of flood management use disaster reports(DRs)as the preferred source of information on past flooding events.A systematic survey of DRs prepared by italian agencies suggests that DRs could be widely enhanced in view of targeting more effective communication to citizens,reinforcing the communication pillar in civil protection planning and management,and improving the resilience of the population to extreme *** loss of the rigor and details required for all the usual technical uses of DRs,we suggest recompiling them in the form of"disaster tales"(DTs),as tools that offer wider knowledge of the events to improve people’s preparedness and self-protection *** major flooding events have demonstrated the communication potential that videos and pictures taken by citizens have for risk perception and disaster *** watching and listening to what has happened the communication recipient can better understand the feelings of the people experiencing an *** structure of the improved reports,we suggest,will finally integrate data,graphs,and maps with interactive tools and be able to present handier multimedia views of the *** to three case studies of flooding in italy illustrates how to concretely implement the suggested disaster reports to create more readily accessible disaster tales.

关键词： Disaster communication Disaster narratives Flood risk perception italy Storytelling

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julia.烃合成法在天然产物全合成中的应用新进展

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有机化学 2010年第11期30卷 1615-1623页

作者：马俊海王帆王进欣尤启冬中国药科大学药学院药物化学教研室南京210009 江苏省肿瘤发生与干预重点实验室南京210009

julia.烃合成法可通过使用不同芳杂基砜和控制反应条件等方法改变反应活性,提高反应立体选择性,从而使其在天然产物的全合成中得到重要的应用.综述了近年来julia.烃合成法(包括julia.Lythgoe反应;Modified-julia.应;julia.kocieńsk... 详细信息

julia.烃合成法可通过使用不同芳杂基砜和控制反应条件等方法改变反应活性,提高反应立体选择性,从而使其在天然产物的全合成中得到重要的应用.综述了近年来julia.烃合成法(包括julia.Lythgoe反应;Modified-julia.应;julia.kocieński反应)在天然产物全合成中的应用进展.

关键词： julia.应天然产物全合成成烯反应立体选择性

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Rheological and stability analysis of cement pastes incorporating silica-based wastes

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Particuology 2024年第6期89卷 144-152页

作者： julia.da Rosa martins Janaíde Cavalcante Rocha Dachamir Hotza Luciano Senff Graduate Program in materials Science and Engineering(PPGmaT) Federal University of Santa Catarina(UFSC)Florianópolis88040-900SCBrazil Graduate Program in Civil Engineering(PPGEC) Federal University of Santa Catarina(UFSC)Florianópolis88040-900SCBrazil Graduate Program in Chemical Engineering(POSENQ) Federal University of Santa Catarina(UFSC)Florianópolis88040-900SCBrazil Department of Mobility Engineering Federal University of Santa Catarina(UFSC)Joinville89219-600SCBrazil

This study investigates the influence of waste characteristics,especially zeta potential,on the properties of cement pastes and *** focus is to evaluate the impact of the zeta potential of cement particles and waste materials on the sedimentation speed,rheology,and hardening time of stabilized cement *** Cement ii F 40,retarder additive,silica,and fly ash were used in the *** pastes were prepared,and during the stabilization period,their rheological properties and pH were *** zeta potential and sedimentation speed of the cement and waste particles were measured at the pH that the pastes presented during the entire stabilization *** the stabilization period,the pastes were subjected to the hardening time *** zeta potential analyses revealed diverse values for the different powder types,with the cement particles exhibiting a zeta potential of−3.0 mV,the silica particles exhibiting−10.5 mV,and the fly ash particles exhibiting−20.3 *** influence of the high zeta potential modulus was observed on the sedimentation speed,with the solution containing fly ash exhibiting a speed of 40.01μm/s,whereas the solution containing only cement exhibited a speed of 99.38μm/*** the pastes,the results indicate that the presence of fly ash particles with a significantly negative zeta potential led to a 16%reduction in hardening time compared to particles with a lower modulus of zeta *** tests showed that the inclusion of fly ash particles prevented the formation of *** the zeta potential influenced agglomerate formation and hardening time,it was found to have no effect on yield stress or viscosity.

关键词： Wastes Zeta potential Setting time Rheometry

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Simulation of four respiratory viruses and inference of epidemiological parameters

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infectious Disease Modelling 2018年第1期3卷 23-34页

作者： julia.Reis Jeffrey Shaman a Biological Systems Engineering Virginia TechBlacksburgVAUSA Department of Environmental Health Sciences Mailman School of Public HealthColumbia UniversityNew YorkNYUSA

While influenza has been simulated extensively to better understand its behavior and predict future outbreaks,most other respiratory viruses have seldom been *** this study,we provide an overview of four common respiratory viral infections:respiratory syncytial virus(RSV),respiratory adenovirus,rhinovirus and parainfluenza,present specimen data collected 2004e2014,and simulate outbreaks in 19 overlapping regions in the United *** a compartmental model and data assimilation methods,we infer key epidemiological parameters governing transmission:the basic reproductive number R0 and length of infection *** had been previously simulated,and our mean estimate of D and R0 of 5.2 days and 2.8,respectively,are within published clinical and modeling *** the four virus groupings,mean estimates of R0 range from 2.3 to 3.0,with a lower and upper quartile range of 2.0e2.8 and 2.6e3.2,*** rapid PCR testing becomes more common,estimates of the observed virulence and duration of infection for these viruses could inform decision making by clinicians and officials for managing patient treatment and response.

关键词： respiratory parameters estimates

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