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Growth,phenology and N-utilization by invasive populations of Gunnera tinctoria

Journal of Plant Ecology 2020年第5期13卷 589-600页

作者： maurício cruz mantoani Alberto Benavent González Leopoldo García Sancho Bruce Arthur Osborne UCD School of Biology and Environmental Science and UCD Earth Institute University College DublinBelfieldDublin 4Ireland Departamento de Farmacología Farmacognosia y BotánicaFacultad de FarmaciaUniversidad Complutense de Madrid28040 MadridSpain

Aims Gunnera tinctoria is an unusual N-fixing plant species that has become invasive worldwide,generally in environments with a low evaporative demand and/or high *** the many mechanisms that may explain its success as an introduced species,a contrasting phenology could be important but this may depend on an ability to grow and utilize nutrients under sub-optimal *** examined whether *** has an advantage in terms of a contrasting phenology and N-fixing capability,in comparisons with Juncus effusus,the native species most impacted by *** *** We made phenological assessments on a weekly or bi-weekly basis on long-established populations on Achill Island,Ireland,during *** on leaf and inflorescence number,total leaf area,light interception and above-ground biomass were collected alongside measurements of soil temperature,moisture and oxidation-reduction *** significance of N-fixing ability for supporting seasonal growth was assessed usingδ15N isotopic assessments,together with in situ acetylene reduction *** Findings The timing of the initiation of growth of *** and *** varied between 2016 and 2017,with the earlier emergence and expansion of leaves of ***,and the largest above-ground biomass associated with higher water *** early growth of *** was dependent on preformed structures,with maximum canopy development occurring in late May,prior to that of *** N-fixation was observed in March,this made a more significant contribution to growth during the later stages of canopy *** onδ15N isotopic analyses,early growth was predominantly associated with N-remobilization from the rhizomes,whilst seedlings were largely reliant on *** emphasizes the importance of nutrient mobilization for early growth and shows that the importance of an N-fixing capability may vary developmentally,as well as during different

关键词： growth invasive species Gunnera tinctoria Juncus effusus nitrogen fixation

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STIR, SPIR and SPAIR techniques in magnetic resonance of the breast: A comparative study

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Journal of Biomedical Science and Engineering 2013年第3期6卷 395-402页

作者： M. Margarida Ribeiro Liliana Rumor Marta Oliveira J. Goiry O’Neill J. cruz maurício Department of Physics Centre of Physics and Technological Research Sciences and Technology Faculty Caparica Portugal Department of Sciences and Radiation Technologies Scientific Area of Radiology from Polytechnic Institute Lisbon Portugal EUROMEDIC—Medical Imaging Tomar Portugal Faculty of Medicine in Pilsen Charles University Prague Czech Republic

The amount of fat is a component that complicates the clinical evaluation and the differential diagnostic between benign and malign lesions in the breast MRI examinations. To overcome this problem, an effective erasing of the fat signal over the images acquisition process, is essentials. This study aims to compare three fat suppression techniques (STIR, SPIR, SPAIR) in the MR images of the breast and to evaluate the best image quality regarding its clinical usefulness. To mimic breast women, a breast phantom was constructed. First the exterior contour and, in second time, its content which was selected based on 7 samples with different components. Finally it was undergone to a MRI breast protocol with the three different fat saturation techniques. The examinations were performed on a 1.5 T MRI system (Philips?). A group of 5 experts evaluated 9 sequences, 3 of each with fat suppression techniques, in which the frequency offset and TI (Inversion Time) were the variables changed. This qualitative image analysis was performed according 4 parameters (saturation uniformity, saturation efficacy, detail of the anatomical structures and differentiation between the fibroglandular and adipose tissue), using a five-point Likert scale. The statistics analysis showed that anyone of the fat suppression techniques demonstrated significant differences compared to the others with (p > 0.05) and regarding each parameter independently. By Fleiss’ kappa coefficient there was a good agreement among observers P(e) = 0.68. When comparing STIR, SPIR and SPAIR techniques it was confirmed that all of them have advantages in the study of the breast MRI. For the studied parameters, the results through the Friedman Test showed that there are similar advantages applying anyone of these techniques.

关键词： Fat Tissue Magnetic Resonance Breast MRI Fat Suppression

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Isotopic and geochemical constraints for a Paleoproterozoic accretionary orogen in the Borborema Province,NE Brazil:Implications for reconstructing Nuna/Columbia

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Geoscience Frontiers 2022年第5期13卷 267-285页

作者： Lauro Cézar M.de Lira Santos Geysson A.Lages Fabrício A.Caxito Elton L.Dantas Peter A.Cawood Haroldo M.Lima Felipe Jda cruz Lima Departamento de Geologia Universidade Federal de PernambucoAv.da ArquiteturaCidade UniversitáriaRecifePEBrazil Serviço Geológico do Brasil-CPRM Av.SulAfogadosRecifePEBrazil CPMTC Instituto de GeociênciasUniversidade Federal de Minas GeraisAv.Pres.Antônio CarlosPampulhaBelo HorizonteMGBrazil Instituto de Geociências Universidade de BrasíliaCampus Universitário Darcy RibeiroAsa NorteBrasíliaDFBrazil School of Earth Atmosphere and EnvironmentMonash UniversityWellington RdClaytonVIC 3800Australia Departamento de Geologia Universidade Federal do CearáCampus do PiciParquelândiaFortalezaCEBrazil

The Alto MoxotóTerrane of the Borborema Province presents a wide exposure of Paleoproterozoic crust,but unlike other continental blocks of South America,its orogenic history is strongly obliterated by late Neoproterozoic *** isotopic and geochemical studies were conducted in mafic-ultramafic(Fazenda Carmo Suite)and granitic-gneissic rocks(Riacho do Navio Suite)within the *** former present zircon U-Pb crystallization ages at ca.2.13 Ga,whereas Sm-Nd data suggests a juvenile origin via melting of early Paleoproterozoic to Archean peridotitic *** data for these rocks are compatible with tholeiitic magmas with some degree of crustal contamination and trace element distribution points to a continental-arc related setting interpreted as remnants of the early stages of *** contrast,the Riacho do Navio Suite was emplaced at ca.2.08 Ga and has highly negativeεNd(t)values indicating crustal *** suite displays calc-alkali to alkali-calcic and ferroan geochemical signatures compatible with Cordilleran *** addition,trace-element distribution as well as discriminant diagrams suggest that the precursor magmas were generated during the later stages of a continental arc or in a syn-collisional *** on our results,we suggest that the studied units might represent missing pieces of a Paleoproterozoic accretionary orogen that formed the crustal framework of the Alto MoxotóTerrane,and that this represents a block associated with assembly of the Nuna/Columbia supercontinent,which is now largely hidden within the Neoproterozoic orogenic belts of West Gondwana.

关键词： Paleoproterozoic accretionary-collisional event Early orogenic and syn-collisional magmatism Paleoproterozoic inlier within West Gondwana Nuna/Columbia Supercontinent

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Insights on Chemical and Natech Risk Management in Japan and South Korea:A Review of Current Practices

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International Journal of Disaster Risk Science 2022年第3期13卷 359-371页

作者： Hyejeong Park Ana Maria cruz Disaster Prevention Research Institute Kyoto UniversityKyoto611-0011Japan

A growing number of natural hazard-triggered technological accidents(Natech)has been reported by several researchers,and this trend is expected to continue due to climate *** a result,some governments have initiated direct efforts to manage Natech risks,particularly in the United States and ***,two surveys conducted by the Organisation for Economic Co-operation and Development(OECD)in 2009 and 2017 found that there was a lack of proper risk management and risk governance for Natech among OECD member states,including Japan and South *** study aimed to identify relevant regulations and practical considerations for chemical and Natech risk management from government perspectives in Japan and South *** article provides a review of the current state of risk management,emergency response,and risk communication on chemical and Natech risk management in the two countries,and concludes with a discussion of some of the issues that require improvement of the current chemical risk *** practices for chemical risk management in Japan and South Korea point to the possibility of improvements in dealing with the Natech *** practical lessons will be valuable for improving the capacity for dealing with challenges in chemical and Natech risk management.

关键词： Chemical accidents Government perspectives Japan Natech Risk governance Risk management South Korea

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Global stability for multi-species Lotka-Volterra cooperative systems： One hyper-connected mutualistic-species

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International Journal of Biomathematics 2015年第3期8卷 215-223页

作者： cruz Vargas-De-Leon Unidad de Medicina Experimental Hospital General de Mexico"Dr. Eduardo Liceaga" DF 06726 Mexico

We propose two models of one hyper-connected mutualistic-species described by delay differential equations of Lotka-Volterra type. An hyper-connected model comprises a central species interacting with a number of peripheral species around it, that is to say, one animal species （pollinators or dispersers） that interacts with several plant species （flowering plants or fruit trees）, or several animal species that interact with one plant species. We derive a necessary and sufficient condition for the global asymptotic stability of the unique coexisting steady state of hyper-connected systems by means of novel Lyapunov functionals.

关键词： Lotka Volterra cooperative system discrete delays distributed delays Lyapunov functional global stability.

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Utilizing a novel fiber optic technology to capture the axial responses of fully grouted rock bolts

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Journal of Rock Mechanics and Geotechnical Engineering 2018年第2期10卷 222-235页

作者： Nicholas Vlachopoulos Daniel cruz Bradley Forbes Department of Civil Engineering Royal Military College of Canada Department of Geological Sciences and Geological Engineering Queen's UniversityKingston

Rock bolts are one of the primary support systems utilized in underground excavations within the civil and mining engineering industries. Rock bolts support the weakened rock mass adjacent to the opening of an excavation by fastening to the more stable, undisturbed formations further from the excavation. The overall response of such a support element has been determined under varying loading conditions in the laboratory and in situ experiments in the past four decades; however, due to the limitations with conventional monitoring methods of capturing strain, there still exists a gap in knowledge associated with an understanding of the geomechanical responses of rock bolts at the microscale. In this paper, we try to address this current gap in scientific knowledge by utilizing a newly developed distributed optical strain sensing(DOS) technology that provides an exceptional spatial resolution of 0.65 mm to capture the strain along the rock bolt. This DOS technology utilizes Rayleigh optical frequency domain reflectometry(ROFDR) which provides unprecedented insight into various mechanisms associated with axially loaded rebar specimens of different embedment lengths, grouting materials, borehole annulus conditions, and borehole diameters. The embedment length of the specimens was found to be the factor that significantly affected the loading of the rebar. The critical embedment length for the fully grouted rock bolts(FGRBs) was systematically determined to be430 mm. The results herein highlight the effects of the variation of these individual parameters on the geomechanical responses FGRBs.

关键词： Fiber optic technology Fully grouted rock bolts Load transfer Stress distribution

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Extracting Natech Reports from Large Databases: Development of a Semi-Intelligent Natech Identification Framework

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International Journal of Disaster Risk Science 2020年第6期11卷 735-750页

作者： Xiaolong Luo Ana Maria cruz Dimitrios Tzioutzios Department of Urban Management Graduate School of EngineeringKyoto UniversityKyoto 615-8540Japan Disaster Prevention Research Institute Kyoto UniversityKyoto 611-0011Japan

Natural hazard-triggered technological accidents(Natechs)refer to accidents involving releases of hazardous materials(hazmat)triggered by natural *** economic losses,as well as human health and environmental problems are caused by *** this regard,learning from previous Natechs is critical for risk ***,due to data scarcity and high uncertainty concerning such hazards,it becomes a serious challenge for risk managers to detect Natechs from large databases,such as the National Response Center(NRC)*** the largest database of hazmat release incidents,the NRC database receives hazmat release reports from citizens in the United ***,callers often have incomplete details about the incidents they are *** results in many records having incomplete ***,it is quite difficult to identify and extract Natechs accurately and *** this study,we introduce machine learning theory into the Natech retrieving research,and a Semi-Intelligent Natech Identification Framework(SINIF)is proposed in order to solve the *** tested the suitability of two supervised machine learning algorithms,namely the Long ShortTerm Memory(LSTM)and the Convolutional Neural Network(CNN),and selected the former for the development of the *** to the results,the SINIF is efficient(a total number of 826,078 records were analyzed)and accurate(the accuracy is over 0.90),while 32,841 Natech reports between 1990 and 2017 were extracted from the NRC ***,the majority of those Natech reports(97.85%)were related to meteorological phenomena,with hurricanes(24.41%),heavy rains(19.27%),and storms(18.29%)as the main causes of these reported ***,this study suggests that risk managers can benefit immensely from SINIF in analyzing Natech data from large databases efficiently.

关键词： Data extraction method Machine learning Natechs Natural hazards NRC database

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Regulation and functions of integrin a2 in cell adhesion and disease

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Genes & Diseases 2019年第1期6卷 16-24页

作者： Valery Adorno-cruz Huiping Liu Department of Pharmacology Feinberg School of MedicineNorthwestern UniversityChicagoIL 60611USA Department of Pharmacology Graduate Program Case Western Reserve University School of MedicineClevelandOH 44106USA Department of Medicine Hematology/Oncology DivisionNorthwestern UniversityChicagoIL 60611USA Robert H.Lurie Comprehensive Cancer Center Feinberg School of MedicineNorthwestern UniversityChicagoIL 60611USA Department of Pathology Case Western Reserve University School of MedicineClevelandOH 44106USA

Integrins are cell adhesion molecules that are composed of an alpha(a)subunit and a beta(b)subunit with affinity for different extracellular membrane *** integrin family includes 24 known members that actively regulate cellular growth,differentiation,and *** integrin heterodimer has a particular function in defined contexts as well as some partially overlapping features with other members in the *** many reviews have covered the general integrin family in molecular and cellular studies in life science,this review will focus on the specific regulation,function,and signaling of integrin a2 subunit(CD49b,VLA-2;encoded by the gene ITGA2)in partnership with b1(CD29)subunit in normal and cancer *** roles in cell adhesion,cell motility,angiogenesis,stemness,and immune/blood cell regulations are *** pivotal role of integrin a2 in many diseases such as cancer suggests its potential to be used as a novel therapeutic target.

关键词： Integrin a2 CD49b Molecular mechanisms Regulation Signaling

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Pneumomediastinum after acute lymphoblastic leukemia and chemotherapy?

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World Journal of Clinical Cases 2014年第5期2卷 170-171页

作者： Alain cruz-Portelles Critical Care Medicine Department V I Lenin University General HospitalHolguin 80100Cuba

Pneumomediastinum,pneumorachis and subcutaneous emphysema are frequently benign and most commonly result from air escaping from the upper respiratory tract,intrathoracic airways,or gastrointestinal *** can also be generated by certain infections or reach the mediastinal space from outside air after trauma or *** the article presented by Showkat et al a 14-year-old male patient with acute lymphoblastic leukemia(ALL) under chemotherapy developed pneumomediastinum,pneumorachis and subcutaneous *** the author's opinion,these complications were caused by ALL or chemotherapy that progressed to severe respiratory failure until the patient finally died in the intensive care unit.I would like to underline some important points,which have been raised following a paper published in the October issue of World Journal of Clinical Cases.

关键词： Acute lymphoblastic leukemia Pneumomediastinum Pneumorachis Chemotherapy Case report

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Tuberculosis and Cysticercosis in Brazil: A Review

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Food and Nutrition Sciences 2018年第6期9卷 642-662页

作者： Ludmilla Santana Soares e Barros Jana Kelly dos Santos maurício Mascarenhas Pedreira Sanmily Santos Damacena Adriana dos Santos Silva Universidade Federal do Recô ncavo da Bahia (UFRB) Cruz das Almas Brazil

Tuberculosis and the taeniasis-cysticercosis complex, typical cases of zoonosis, have great importance for public health, since they cause economic liabilities to the Brazilian beef production chain. They are actually a synonym of technical inadequateness in Good Production Practices. Both diseases have existed since ancient times and their occurrence should be controlled by basic sanitary measures. However, there is a significant neglect attitude by authorities of countries with high occurrence rates, or rather, tropical underdeveloped nations, to focus on public policies for the control and decrease of the prevalence and the occurrence of these diseases. Current review elucidates the epidemiological profile of the diseases and contributes towards the elucidation and establishment of measures ensuring control.

关键词： Cysticercosis Health Tuberculosis Medicine Zoonosis

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