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外国中小学教育 2004年第12期 34-37页

作者： Art Garner ed.d.dave S.Knowlton.M.S. 周俏纨上海师范大学教育科学院

对于中学生来说,课外活动能带给他们放松和娱乐的机会.学生经常把这些活动只看作一种消遣娱乐的方式.然而,更深层次的隐性课程应该最大限度地得到普及.这就是,研究表明参与艺术教育和体育运动能够促进良好公民品质和显著个性的形成.

关键词：隐性课程课外活动动能艺术教育中学生娱乐体育运动公民参与限度

A multi-shot target wheel assembly for high-repetition-rate, laser-driven proton acceleration

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High Power Laser Science and Engineering 2024年第2期12卷 87-94页

作者： J.Penas A.Bembibre d.Cortina-Gil L.Martin A.Reija C.Ruiz M.Seimetz A.Alejo J.Benlliure Instituto Galego de Fisica de Altas Enerxias Universidade de Santiago de CompostelaSantiago de CompostelaSpain Laboratorio Laser de Aceleracion y Aplicaciones RIAIDTUniversidade de Santiago de CompostelaSantiago de CompostelaSpain Instituto Universitario de Física Fundamental y Matematicas y dpto.de didactica de la Matematica y de las Ciencias Experimentales Universidad de SalamancaSalamancaSpain Instituto de Instrumentación para Imagen Molecular(I3M) CSIC-Universitat Politecnica de ValenciaValenciaSpain

A multi-shot target assembly and automatic alignment procedure for laser–plasma proton acceleration at high repetition rate are *** assembly is based on a multi-target rotating wheel capable of hosting more than 5000 targets,mounted on a 3d motorized stage to allow rapid replenishment and alignment of the target material between laser *** automatic alignment procedure consists of a detailed mapping of the impact positions at the target surface prior to the irradiation that ensures stable operation of the target,which alongside the purpose-built design of the target wheel,enables operation at rates up to 10 *** and continuous laser-driven proton acceleration at 10 Hz is demonstrated,with observed cut-off energy stability about 15%.

关键词： high repetition rate laser-plasma acceleration multi-shot operation proton source target assembly

direct evidence of microbiological water quality changes on bacterial quantity and community caused by plumbing system

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Journal of Environmental Sciences 2022年第6期34卷 175-183页

作者： Jun Li Anran Ren ed van der Mark Gang Liu Key Laboratory of drinking Water Science and Technology Research Centre for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China dunea Water Company Plaza of the United Nations 11-15Zoetermeer 2700 ATthe Netherlands Sanitary engineering Department of Water managementFaculty of Civil Engineering and GeosciencesDelft University of TechnologyDelft 2600 GAthe Netherlands

drinking water quality deteriorates from treatment plant to customer taps, especially in the plumbing system. There is no direct evidence about what the differences are contributed by plumbing system. This study compared the water quality in the water main and at customer tap by preparing a sampling tap on the water main. The biomass was quantified by adenosine triphosphate(ATP) and the microbial community was profiled by 454 *** results showed that in distribution pipes, biofilm contributed >94% of the total biomass,while loose deposits showed little contribution(deposits. The distribution of biological stable water had minor effects on the microbiocidal water quality regarding both quantity(ATP 1 ng/L vs. 1.7 ng/L) and community of the bacteria. Whereas the plumbing system has significant contribution to the increase of active biomass(1.7 ng/L vs. 2.9 ng/L) and the changes of bacterial community. The relative abundance of Sphingomonas spp. at tap(22%) was higher than that at water main(2%), while the relative abundance of Pseudomonas spp. in tap water(15%) was lower than that in the water from street water main(29%). Though only one location was prepared and studied, the present study showed that the protocol of making sampling tap on water main offered directly evidences about the impacts of plumbing system on tap water quality, which makes it possible to distinguish and study the processes in distribution system and plumbing system separately.

关键词： drinking water distribution system Plumbing system Microbiological water quality Sampling program 454 pyrosequencing

Any alternatives to rice? Ethnobotanical insights into the dietary use of edible plants by the Higaonon tribe in Bukidnon Province, the Philippines

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Regional Sustainability 2022年第2期3卷 95-109页

作者： dave Paladin BUENAVISTA Eefke Maria MOLLEE Morag MCdONALd department of Biology Central Mindanao UniversityUniversity TownMaramag8714the Philippines School of Natural Sciences Bangor UniversityBangorLL572DGUnited Kingdom

Though considered an agricultural country,the Philippines is the world’s largest importer of *** persistent problem of insufficient rice supply,however,has been exacerbated by economic crises and natural ***,for the Higaonon tribe in Bukidnon Province,the Philippines,the rich agrobiodiversity and wild edible plants are vital for food security and resilience since the mountainous terrain in this province presents a challenge for rice *** gain insight from the indigenous edible plant knowledge of the Higaonon tribe,we conducted an ethnobotanical research to document the diversity,utilization,and biocultural refugia of both cultivated and wild edible plants.A total of 76 edible plant species belonging to 62 genera and 36 botanical families were *** most represented botanical families included the Fabaceae,Solanaceae,and *** terms of dietary usage,3 species were categorized as cereals;8 species were white roots,tubers,and plantains;3 species were vitamin A-rich vegetables and tubers;16 species were green leafy vegetables;12 species were categorized as other vegetables;2 species were vitamin A-rich fruits;27 species were classified as other fruits;7 species were legumes,nuts,and seeds;and 8 species were used as spices,condiments,and *** the statistical software R with ethnobotanyR package,we further calculated the ethnobotanical indices(use-report(UR),use-value(UV),number of use(NU),and fidelity level(FL))from 1254 URs in all 9 food *** species with the highest UV and UR were from a variety of nutrient-rich edible plants such as Ipomoea batatas(L.)Lam.,Musa species,Colocasia esculenta(L.)Schott,Zea mays L.,and Manihot esculenta *** extensive utilization of root and tuber crops along with corn and plantain that contain a higher amount of energy and protein,carbohydrates,minerals,and vitamins were shown to be an important nutrient-rich alternatives to *** males appeared to be more

关键词： Sustainable development Goals(SdGs) Food security Neglected and underutilized species Indigenous peoples Ethnobotany Nutrition The Philippines

Fluidization and bubbling behavior of potash particles in a deep fluidized bed

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Particuology 2023年第9期80卷 103-114页

作者： Mojtaba Nabipoor Hassankiadeh Jingsi Yang Mark Berrey dave Jordison Lifeng Zhang donald Bergstrom Raymond J.Spiteri department of Chemical and Biological Engineering University of SaskatchewanSKS7N 5A9SaskatoonCanada The Mosaic Company Belle PlaineSKCanada department of Mechanical Engineering University of SaskatchewanSaskatoonCanada department of Computer Science University of SaskatchewanSaskatoonSKCanada

Most existing models for predicting bubble size and bubble frequency have been developed for freely bubbling fluidized *** prediction of bubbling behavior in deep fluidized beds,however,has been a challenge due to the higher degree of bubble coalescence and break up,high probability of the slugging regime,partial fluidization,and chaotic behavior in the bubbling *** this work,the bubbling and fluidization behavior of potash particles was investigated in a deep fluidized bed employing a twin-plane electrical capacitance tomography(ECT)*** volume fraction,average bubble velocity,average bubble diameter,and bubble frequency in both bubbling and slugging regimes were measured at two different bed height ratios(H/d=3.5 and H/d=3.78).This work is the first to illustrate a sequential view of bubbles at different superficial gas velocities in a fluidized *** results show that both the bubble diameter and rising velocity increased with increasing the superficial gas velocity for the two bed heights,with larger values observed in the deeper bed compared to the shallower *** values for bubble diameter,bubble rise velocity and bubble frequency from different models are compared with the experimental data obtained from the ECT system in this *** agreement has been achieved between the values predicted by the previous models and the experimental data for the bubble diameter and bubble rise velocity with an average absolute deviation of 16%and 15%for the bed height of 49 cm and 13%and 8%for the bed height of 53 cm,respectively.

关键词： deep fluidized bed Potash particle Electrical capacitance tomography Image reconstruction Bubbling and slugging regime

Analytically depicting the calcium diffusion for Alzheimer's affected cell

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International Journal of Biomathematics 2018年第7期11卷 109-121页

作者： devanshi d.dave Brajesh Kumar Jha department of Mathematics School of Technology Pandit Deendayal Petroleum UniversityRaisan GandhinagarGujarat 382007India

Brain is the most complex structure of the human *** processes going inside the brain and the mechanisms behind it have been unrevealed up to certain extent *** of the various physiological phenomena carried out by the brain,calcium signalling can be considered as one of the most *** being a second messenger plays an important role in transformation of various *** view of above,an attempt has been made here to study calcium signalling in presence of buffers,*** kind of proteins and endoplasmic reticulum (ER),which is also known as store house of the *** the store house of the cell,it has very high amount of calcium,whereas buffers decrease the level of free calcium ions by binding calcium ions to it.A two-dimensional mathematical model has been developed to see the impact of these parameters on cytosolic calcium *** mathematical model is solved analytically using Laplace transforms and similarity *** simulations are carried out using *** is observed that the impact of buffer and ER is significant on calcium *** obtained results are interpreted with the Alzheimeric condition of the nerve cells.

关键词： Calcium buffers endoplasmic reticulum Alzheimer's disease Laplace transforms

Thirteen-year growth response of ponderosa pine plantations to dominant shrubs(Arctostaphylos and Ceanothus)

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Journal of Forestry Research 2020年第4期31卷 1445-1451页

作者： Jianwei Zhang Matt d.Busse Gary O.Fiddler ed Fredrickson USdA Forest Service Pacific Southwest Research Station3644 Avtech ParkwayReddingCA 96002USA USdA Forest Service Pacific Southwest Region3644 Avtech ParkwayReddingCA 96002USA Thunder Road Resources 21169 Falling Leaf RdReddingCA 96003USA

Thirteen-year growth response of ponderosa pine to various manipulations of understory vegetation was studied to determine if a threshold of understory cover can be established for plantation productivity and whether nitrogen-fixing Ceanothus species benefit plantation growth compared to non N-fixing Arctostaphylos species,given their ability to improve site *** showed that completely controlling competing vegetation increased plantation growth,as was universally expected,but the effects of partial shrub control on plantation performance was *** did not find a benefit of nitrogenfixing shrubs on tree growth,as young plantation growth was slightly better in the non N-fixing plots compared to the N-fixing plots due to differences in shrub *** understory cover threshold for tree growth was not *** to the overriding effect of shrub competition,controlling herbaceous species had little effect on plantation growth even though it benefited tree seedling survival.A long-term value of N-fixing shrubs at these sites,if there is one,must be balanced by successful plantation establishment and rapid early growth.

关键词： Competing vegetation control Manzanita Nitrogen-fixing Ceanothus Pinus ponderosa growth Shrub cover

A multi-shot target wheel assembly for high-repetition-rate, laser-driven proton acceleration

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High Power Laser Science and Engineering 2024年第2期 91-98页

作者： J.Pe?as A.Bembibre d.Cortina-Gil L.Martín A.Reija C.Ruiz M.Seimetz A.Alejo J.Benlliure Instituto Galego de Física de Altas Enerxías Universidade de Santiago de Compostela Laboratorio Láser de Aceleración y Aplicaciones RIAIDT Universidade de Santiago de Compostela Instituto Universitario de Física Fundamental y Matemáticas y dpto.de didáctica de la Matemática y de las Ciencias Experimentales Universidad de Salamanca Instituto de Instrumentación para Imagen Molecular (I3M) CSIC-Universitat Politècnica de València

A multi-shot target assembly and automatic alignment procedure for laser–plasma proton acceleration at high repetition rate are introduced. The assembly is based on a multi-target rotating wheel capable of hosting more than 5000 targets,mounted on a 3d motorized stage to allow rapid replenishment and alignment of the target material between laser irradiations. The automatic alignment procedure consists of a detailed mapping of the impact positions at the target surface prior to the irradiation that ensures stable operation of the target, which alongside the purpose-built design of the target wheel, enables operation at rates up to 10 Hz. Stable and continuous laser-driven proton acceleration at 10 Hz is demonstrated, with observed cut-off energy stability about 15%.

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Allelic functional variation of FimH among Salmonella enterica subspecies

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Animal diseases 2023年第4期3卷 265-274页

作者： Xiamei Kang Jiaqi Chen Xiao Zhou Abdelaziz ed-dra Min Yue Instituteof Preventive Veterinary Sciences&department of Veterinary Medicine Zhejiang University College of Animal SciencesHangzhou 310058China Laboratory of Engineering and Applied Technologies Higher School of TechnologySultan Moulay Slimane UniversityPB:591Mghila University Campus23000Beni MellalMorocco Hainan Institute of Zhejiang University SanyaChina Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine Hangzhou 310058China

Salmonella enterica has a wide diversity,with numerous serovars belonging to six different subspecies with dynamic animal-host *** FimH protein is the adhesin mediating binding to various cells,and slight amino acid discrepancy significantly affects the adherence *** date,the general function of FimH variability across dif-ferent subspecies of Salmonella enterica has not been *** investigate the biological functions of FimH among the six Salmonella enterica subspecies,the present study performed several assays to determine biofilm for-mation,Caenorhabditis elegans killing,and intestinal porcine enterocyte cell IPEC-J2 adhesion by using various FimH allele *** general,allelic mutations in both the lectin and pilin domains of FimH could cause changes in bind-ing affnity,such as the N79S *** also observed that the N79S variation in Salmonella dublin increased the adhesive ability of IPEC-J2 ***,a new amino acid substitution,T260M,within the pilin domain in one subspecies llb strain beneficial to binding to cells was highlighted in this study,even though the biofilm-forming and Caenorhabditis elegans-killing abilities exhibited no significant differences in *** with point muta-tions being a natural tendency due to positive selection in harsh environments,we speculate that allelic variation T26oM probably contributes to pathoadaptive evolution in Salmonella enterica subspecies llb.

关键词： Salmonella subspecies FimH Amino acid substitution Binding Allelic variation

Challenges and opportunities in improving left ventricular remodelling and clinical outcome following surgical and trans-catheter aortic valve replacement

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Frontiers of Medicine 2021年第3期15卷 416-437页

作者： Xu Yu Jin Mario Petrou Jiang Ting Hu ed d Nicol John R Pepper Surgical Echo-Cardiology Services Oxford Heart CentreJohn Radcliffe HospitalOxford University Hospitals NHS Foundation TrustOxford OX39DUUK Cardiac Surgical Physiology and Genomics Group Nuffield Division of Clinical Laboratory SciencesRadcliffe Department of MedicineUniversity of OxfordOxford OX39DUUK department of Cardiac Surgery Royal Brompton HospitalLondon SW36NPUK National Heart and Lung Institute Imperial College LondonLondon SW36LYUK NIHR Imperial Biomedical Research Centre London W21NYUK department of Cardiology Royal Brompton HospitalLondon SW36NPUK

Over the last half century,surgical aortic valve replacement(SAVR)has evolved to offer a durable and efficient valve haemodynamically,with low procedural complications that allows favourable remodelling of left ventricular(LV)structure and *** latter has become more challenging among elderly patients,particularly following trans-catheter aortic valve implantation(TAVI).Precise understanding of myocardial adaptation to pressure and volume overloading and its responses to valve surgery requires comprehensive assessments from aortic valve energy loss,valvular-vascular impedance to myocardial activation,force-velocity relationship,and myocardial *** hypertrophy and myocardial fibrosis remains as the structural and morphological focus in this *** intervention in asymptomatic aortic stenosis or regurgitation along with individualised management of hypertension and atrial fibrillation is likely to improve patient *** pacing via the His-Purkinje system for conduction abnormalities,further reduction in para-valvular aortic regurgitation along with therapy of angiotensin receptor blockade will improve patient outcome by facilitating hypertrophy regression,LV coordinate contraction,and global vascular *** leaflet thromboses require anticoagulation while impaired access to coronary ostia risks future TAVI-in-TAVI or coronary *** comparable long-term durability and the resolution of TAVI related complications become available,SAVR remains the first choice for lower risk younger patients.

关键词： surgical aortic valve replacement trans-catheter aortic valve implantation left ventricular hypertrophy and fibrosis myocardial force-velocity relationship His-Purkinje pacing renin-angiotensin system inhibitors coronary access impairment