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Decoupled drought responses of fine-root versus leaf acquisitive traits among six Prunus hybrids

Journal of Plant Ecology 2020年第3期13卷 304-312页

作者： Shuang-Xi Zhou rob R.Walker Everard Edwards CSIRO Agriculture and Food Glen OsmondSA 5064Australia The New Zealand Institute for Plant and Food Research Ltd Hawke’s BayNew Zealand

Aims Predicting drought consequences on forests and fruit crop plantings requires improved understanding of drought responses of both leaf and fine-root resource acquisitive traits(specific leaf area—SLA,specific root surface area—SRA and specific root length—SRL).We hypothesize their responses are coordinated towards integrated plant resource conservation under severe *** We tested the hypothesis with a greenhouse-based drought experiment on saplings of six Prunus hybrids with a priori known contrasting drought *** were subjected to either control(100%field capacity)or severe drought stress treatment(33%evapotranspiration of hybrid-specific control plants).Sample collections were carried out at 30 and at 60 days after the start of treatments,for both control and stressed *** Findings No hybrid showed concurrent significant decrease of SLA and SRA(or SRL)under severe *** fine-root traits of the six hybrids showed two major drought-response scenarios,in particular:(i)increased root tissue density(RTD)and decreased average root diameter without significant change of SRL and(ii)increased RTD and decreased SRL without significant change of average root *** responses of leaf gas exchange,SRA,SRL and RTD were closely correlated along a gradient towards resource conservation from control to drought-stressed plants in all hybrids,which was orthogonal to another gradient characterized by a hybrid-dependent decrease of *** findings highlight(i)the multi-dimensionality of root-trait drought responses,(ii)the decoupling between leaf economics and leaf hydraulics and(iii)the covariation of leaf and root hydraulics in terms of trait drought *** study contributes to identifying the origin of the multi-dimensionality of root-trait drought response at intraspecific scale,and highlights differential drought–response combinations of leaf and fine-root traits among hybrids to survive under severe soil drou

关键词： multi-dimensional drought response soil water stress specific leaf area specific root length specific root surface area

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An Investigation of Freezing of Supercooled Water on Anti-Freeze Protein Modified Surfaces

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Journal of Bionic Engineering 2013年第2期10卷 139-147页

作者： Thibaut V J Charpentier Anne Neville Paul Millner rob Hewson Ardian Morina Institute of Engineering Thermofluids Surfaces and Interfaces (iETSI) Mechanical Engineering University of Leeds LS2 9JT Leeds UK

This work investigates how functionalization of aluminium surfaces with natural type III Anti-Freeze Protein （AFP） affects the mechanism of heterogeneous ice nucleation. First the bulk ice nucleation properties of distilled water and aqueous solution of AFP were evaluated by differential scanning calorimetry. Then the modified surface was characterized by Secondary Ions Mass Spectroscopy （SIMS）, Fourier Transform InfraRed （FTIR） spectroscopy and contact angle measurement. Freezing experiments were then conducted in which water droplets underwent a slow controlled cooling. This study shows that compared to uncoated aluminium, the anti-freeze proteins functionalized surfaces exhibit a higher and narrower range of freezing temperature. It was found that these proteins that keep living organisms from freezing in cold environment act in the opposite way once immobilized on surfaces by promoting ice nucleation. Some suggestions regarding the mechanism of action of the observed phenomena were proposed based on the Classical Nucleation Theory （CNT）.

关键词： anti-freeze protein surface functionalization ice nucleation temperature ice-like monolayer

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Computer systems architecture : a networking approach /

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2001年

作者： Williams rob

Includes bibliographical references (p. [645]-646) and index.

ISBN: (纸本)0201648598

Includes bibliographical references (p. [645]-646) and index.

关键词： Computer architecture. Computer network architectures.

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Presenting patterns of dermatology conditions to an Australian emergency department

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World Journal of Emergency Medicine 2020年第2期11卷 74-78页

作者： Emily Shao Chantelle Judge Erin McMeniman Tina Bazianas rob Eley Emergency Department Princess Alexandra HospitalBrisbaneAustralia Faculty of Medicine University of QueenslandBrisbaneAustralia Dermatology Department Princess Alexandra HospitalBrisbaneAustralia

BACKGROUND: Approximately 5%–8% of emergency department(ED) presentations are due to a dermatological *** study aimed to identify and characterise patients with skin conditions presenting to a busy ***: A 5-year retrospective study on patients with dermatological conditions presenting to the Princess Alexandra Hospital ED in Brisbane, Australia was *** medical records were used to compare demographics and admission status of the dermatology group and the total ED group presentations.A prospective survey was conducted on low priority triage(triage 4 and 5) patients identifying reasons presenting to the ***: Of a total 281,718 ED presentations, 11,748 dermatology presentations were identified between January 2012 to December *** the dermatology presentations, 41.5% were female and had an average age of *** most common dermatology presentations were cellulitis, abscess, rash unspecified, and *** those admitted, 36% were female, average age was 53, mean length of stay of 294 minutes and 83.1% had an infectious *** triage 4 and 5 presentations, 66% patients we approached had been seen by a health practitioner prior to coming to the ***: Within the population presenting with a skin related condition to the Princess Alexandra Hospital ED, characteristics associated with admission include male sex, older age, and an infectious *** data may help ED clinicians decide on the discharge disposition of these *** may be a role for streamlined admissions for skin related infections, or improved hospital in the home services to support this group.

关键词： Pcellulitis Skin Dermatology Emergency department

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Listening /

Listening /

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1987年

作者： Nolasco rob

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Current Injection Provokes Rapid Expansion of the Guard Cell Cytosolic Volume and Triggers Ca^2＋ Signals

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Molecular Plant 2016年第3期9卷 471-480页

作者： Lena J. Voss Rainer Hedrich M. rob G. Roelfsema Molecular Plant Physiology and Biophysics Julius-von-Sachs Institute for Biosciences Biocenter Werzburg University Julius-von-Sachs-Platz 2 97082 Werzburg Germany

High-resolution microscopy opens the door for detailed single-cell studies with fluorescent reporter dyes and proteins. We used a confocal spinning disc microscope to monitor fluorescent dyes and the fluorescent protein Venus in tobacco and Arabidopsis guard cells. Multi-barreled microelectrodes were used to inject dyes and apply voltage pulses, which provoke transient rises in the cytosolic Ca^2＋ level. Voltage pulses also caused changes in the distribution of Lucifer Yellow and Venus, which pointed to a reversible increase of guard cell cytosolic volume. The dynamic cytosolic volume changes turned out to be provoked by current injection of ions. A reduction of the clamp current, by blocking K^＋ uptake channels with Cs^＋, strongly suppressed the cytosolic volume changes. Cs^＋ not only inhibited the expansion of the cytosol, but also inhibited hyperpolarization-induced elevations of the cytosolic Ca^2＋ concentration. A complete loss of voltage-induced Ca^2＋ signals occurred when Ca^2＋-permeable plasma membrane channels were simultaneously blocked with La^3＋. This shows that two mechanisms cause hyperpolarization-induced elevation of the cytosolic Ca^2＋-concentration：（i） activation of voltage-dependent Ca^2＋-permeable channels, （ii） osmotically induced expansion of the cytosol, which leads to a release of Ca^2＋ from intracellular stores.

关键词： guard cell cytosolic Ca^2+ cytosolic volume voltage clamp current injection ion channel

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Bayesian modeling of dynamic behavioral change during an epidemic

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Infectious Disease Modelling 2023年第4期8卷 947-963页

作者： Caitlin Ward rob Deardon Alexandra M.Schmidt Division of Biostatistics University of MinnesotaMinneapolisMNUSA Faculty of Veterinary Medicine University of CalgaryCalgaryABCanada Department of Mathematics and Statistics University of CalgaryCalgaryABCanada Department of Epidemiology Biostatisticsand Occupational HealthMontrealQCCanada

For many infectious disease outbreaks,the at-risk population changes their behavior in response to the outbreak severity,causing the transmission dynamics to change in *** change is often ignored in epidemic modeling efforts,making these models less useful than they could *** address this by introducing a novel class of datadriven epidemic models which characterize and accurately estimate behavioral *** proposed model allows time-varying transmission to be captured by the level of“alarm”in the population,with alarm specified as a function of the past epidemic *** investigate the estimability of the population alarm across a wide range of scenarios,applying both parametric functions and non-parametric functions using splines and Gaussian *** model is set in the data-augmented Bayesian framework to allow estimation on partially observed epidemic *** benefit and utility of the proposed approach is illustrated through applications to data from real epidemics.

关键词： Bayesian inference Compartmental model SIR SEIR Transmission modeling

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How China Could Contribute to a Benign Global Rebalancing?

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China & World Economy 2008年第5期16卷 35-50页

作者： Pingfan Hong rob Vos Keping Yao Chief of Global Economic Monitoring Department of Economic and Social Affairs the United Nations Director for Development Policy and Analysis the United Nations Statistician Department of Economic and Social Affairs the United Nations

Our study shows that China could contribute to an orderly global rebalancing using a package of policies to stimulate its domestic consumption. These policies include a progressive appreciation of the RMB, fiscal stimulation by increasing expenditure on education, health care, social safety nets and poverty reduction, income policies to reduce inequality and to strengthen wage income, and reforms of the financial system to improve financial efficiency and to mitigate financial constraints. By implementing such policies, China＇ s external surplus could be narrowed and its domestic imbalances improved. The excessively high savings rate could be lowered and the share of household consumption increased, even though GDP growth would moderate slightly.

关键词： consumption exchange rate global imbalances savings social spending

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Climate change criminology

Climate change criminology

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作者： rob White.

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The USP7 protein interaction network and its roles in tumorigenesis

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Genes & Diseases 2022年第1期9卷 41-50页

作者： Ahood Al-Eidan Yihua Wang Paul Skipp rob M.Ewing School of Biological Sciences B85 Life SciencesUniversity of SouthamptonSouthamptonSO171BJUK Department of Biology College of SciencesImam Abdulrahman Bin Faisal UniversityP.O.Box 1982DammamSaudi Arabia

Ubiquitin-specific protease(USP7),also known as Herpesvirus-associated ubiquitin-specific protease(HAUSP),is a *** has been significant recent attention on USP7 following the discovery that USP7 is a key regulator of the p53-MDM2 *** USP7 protein is 130 kDa in size and has multiple domains which bind to a diverse set of *** interactions mediate key developmental and homeostatic processes including the cell cycle,immune response,and modulation of transcription factor and epigenetic regulator activity and ***7 also promotes carcinogenesis through aberrant activation of the Wnt signalling pathway and stabilization of HIF-1α.These findings have shown that USP7 may induce tumour progression and be a therapeutic *** with interest in developing USP7 as a target,several studies have defined new protein interactions and the regulatory networks within which USP7 *** this review,we focus on the protein interactions of USP7 that are most important for its cancer-associated roles.

关键词： Cancer Deubiquitinase Protein network Protein-protein interaction Proteomics USP7

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