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Synergistic effect of Si and K in improving the growth,ion distribution and partitioning of Lolium perenne *** saline-alkali stress

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Journal of Integrative Agriculture 2021年第6期20卷 1660-1673页

作者： FAN Yuan SHEN Wu-yan Pino vanessa CHENG Fang-qin Institute of Resources and Environmental Engineering Shanxi University/State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste ResourcesTaiyuan 030006P.R.China Sydney Institute of Agriculture School of Life and Environmental SciencesThe University of SydneyNSW 2006Australia

The application of Si or K has proven to be beneficial for the growth of plants under saline-alkali stress. However, the synergistic effect of Si and K in improving the growth, ion distribution, and partitioning in Lolium perenne L. under saline-alkali stress remains unclear. In this study, the growth characteristics and ion-selective absorption of ryegrass(Lolium perenne L.) exposed to different levels of saline-alkali stress were evaluated. The growth parameters of ryegrass were significantly improved when Si was applied by itself or coupled with K under low saline-alkali stress. Under a high saline-alkali level, only simultaneous application of Si and K could significantly improve the growth of ryegrass. When Si and K were applied together, the K^(+)/Na^(+) and Ca^(2+)/Na^(+) ratios in root, stem, and leaf of ryegrass were maximally improved as compared to the individual treatments and control. The K^(+) and Ca^(2+) concentrations in the vacuole, cell wall, and organelle of leaf were increased dramatically. This improvement was due to the ability of applied ions to compete with Na^(+), allowing the plant to maintain osmotic potential and leaf water content. The concentration of Na^(+) was significantly reduced when Si and K were applied and mainly concentrated in the soluble fraction and cell wall. The Si concentration in ryegrass increased markedly by the combined application of Si and K, and most of it was accumulated in the cell wall and soluble fraction, which could help in chlorophyll synthesis, reduce membrane injury, and increase water absorption under saline-alkali stress. This study emphasized the advantage of Si and/or K on the growth of plants under different saline-alkaline levels and provided a guide for the production of Si-K fertilizer and its application in saline-alkali soil.

关键词： saline-alkali stress Si K ryegrass plants K+/Na+ compartmentation

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Feeding ecology of a highly aerial bird during its long breeding season

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Avian Research 2023年第1期14卷 62-69页

作者： Sandra Fernandes vanessa A.Mata Luis P.da Silva CIBIO Centro de Investigacão em Biodiversidade e Recursos GenéticosInBIO Laboratório AssociadoCampus de VairãoUniversidade do Porto4485-661Vairão Portugal Departamento de Biologia Faculdade de CiênciasUniversidade do Porto4099-002PortoPortugal BIOPOLIS Program in Genomics Biodiversity and Land PlanningCIBIOCampus de Vairão4485-661VairãaoPortugal

Pallid Swifts(Apus pallidus),as other swifts,are birds extremely adapted to an aerial lifestyle,showing unique adaptations that allow them to fly almost *** diet of these non-stopping high-altitudinal aerial birds has been mostly studied through techniques that fail to produce highly resolved prey identifications,and for that have been replaced by molecular techniques,such as DNA *** samples of Pallid Swifts were monthly collected from a colony in the north of Portugal during the breeding *** from the faecal samples was used to sex the birds and to identify the arthropods present in the diet through DNA *** the detected prey items,74 families were identified belonging to 16 orders,with Hymenoptera and Hemiptera being the most frequently *** were seasonal variations in diet richness,composition and prey *** the diet of males and females,although no differences were found between the diet of males and females in terms of composition and richness,there were differences in the size of arthropods preyed by the different sexes,with males feeding on larger *** large seasonal variation in Pallid Swifts’diet during the breeding season is probably a result of spatiotemporal variation in aerial prey,of which swifts likely predate *** no significant differences were detected in diet richness and composition between sexes,the fact that males consumed larger prey may suggest the existence of sexual dietary segregation in this group of *** last,several pest species were found in these swifts’diet,which,if studied through DNA metabarcoding,can be used to monitor small arthropods,including airborne pests.

关键词： AMerial foraging Apus plius Dietary s-ssonal variation FReeding omlogy Metahercoding Opimel foraging theoary

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Central nervous system manifestations due to iatrogenic adrenal insuffi ciency in a Ewing sarcoma patient

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World Journal of Emergency Medicine 2019年第2期10卷 119-121页

作者： Coralie Galland-Decker vanessa Kraege Claudio Sartori Internal Medicine University HospitalLausanne-CHUV

Dear editor,Several types of tumors affect *** being rare,the Ewing sarcoma fami ly of tumors represents the second most common primary bone malignancy in children and *** Cushing syndrome i s a wel l-known condi t ion characterized by an ectopic secretion of ACTH(or CRH),and in turn of cortisol by tumor *** Cushing syndrome is however very rare in Ewing sarcoma,and to our knowledge,it was only described once.

关键词： Several types adolescents primary bone

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Coronavirus disease 2019 severity in obesity:Metabolic dysfunctionassociated fatty liver disease in the spotlight

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World Journal of Gastroenterology 2021年第16期27卷 1738-1750页

作者： Isabela Macedo Lopes Vasques-Monteiro vanessa Souza-Mello Anatomy Rio de Janeiro State UniversityRio de Janeiro 20551030Brazil Food Science and Technology Federal University of the State of Rio de JaneiroRio de Janeiro 22290250Brazil Laboratory of Morphometry Metabolismand Cardiovascular DiseasesBiomedical CenterInstitute of BiologyAnatomy DepartmentRio de Janeiro State UniversityRio de Janeiro 20551030Brazil

The coronavirus disease 2019(COVID-19)outbreak has drawn the scientific community's attention to pre-existing metabolic conditions that could aggravate the infection,causing extended viral shedding,prolonged hospitalization,and high death *** dysfunction-associated fatty liver disease(MAFLD)emerges as a surrogate for COVID-19 severity due to the constellation of metabolic alterations it *** review outlines the impact MAFLD exerts on COVID-19 severity in obese subjects,besides the possible mechanistic links to the poor *** data collected showed that MAFLD patients had poorer COVID-19 outcomes than non-MAFLD obese *** is generally accompanied by impaired glycemic control and systemic arterial hypertension,both of which can decompensate during the COVID-19 clinical ***,MAFLD subjects had higher plasma inflammatory marker concentrations than non-MAFLD subjects,which might be related to an intensified cytokine storm syndrome frequently associated with the need for mechanical ventilation and *** conclusion,MAFLD represents a higher risk than obesity for COVID-19 severity,resulting in poor outcomes and even progression to non-alcoholic *** should include MAFLD subjects in the high-risk group,intensify preventive measurements,and prioritize their vaccination.

关键词： Metabolic dysfunction-associated fatty liver disease Obesity COVID-19 Severity Cytokine storm syndrome

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The Impact of a Youth Development Approach on Academic Performance: a Case Study of Primary School5th Grade Students in an After-school Program in Suriname

The Impact of a Youth Development Approach on Academic Perfo...

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作者： vanessa Lieveld 东北师范大学

学位级别：硕士

对于所有的受教育的学生来说,进入高质量的学校是一个必要的构成部分,仅仅好学校也不足以确保普遍性的高水平学术成就。以上论述是基于Ringeling(1996)的一项研究,该研究中指出苏里南小学生的学术表现远没有达到人们的满意。尽管参加正... 详细信息

对于所有的受教育的学生来说,进入高质量的学校是一个必要的构成部分,仅仅好学校也不足以确保普遍性的高水平学术成就。以上论述是基于Ringeling(1996)的一项研究,该研究中指出苏里南小学生的学术表现远没有达到人们的满意。尽管参加正规学校的日程安排,小学生在他们的学术工作中也表现得不好。由于上面提到的问题,政策制定者和教育部联合起来寻找帮助提高学生在校成就的方法。一个有效的解决这个问题的方式是通过课后项目的使用。这些项目是以社区为基础的,他们的目的是提高学生的学术表现。通过这些项目,学生的学术表现获得提高。可惜的是,这个项目被认为是“美好的”而不是必要的。尽管他们可能不会被认为是这样的,他们是一个低杠杆率的资源,应该有一个和苏里南政府合作的策略伙伴以确保每一个孩子都是做好准备的。因此,当希望学生更好的学术表现时,以社区为基础项目的影响不应该被忽视。本研究旨在探索苏里南帕拉马里博地区这个项目对五年级学生学术表现的影响。本研究以以下三个问题为导向：1.加入课后项目前后,学生在期末数学／阅读国家考试的表现如何?2.教师对学生参加课后项目后的课堂表现的理解是怎样的?3.学生对于课后项目对他们学术表现的影响的理解是怎样的?本研究涉及有目的选择的36名参与者。参与者通过访谈和焦点小组讨论做出回应。学生参加课后项目前后的期末数学／阅读国家考试记录文件也得到评估。研究问题1的数据是数量上的,通过excel对频率、平均数、方差和百分比这些基本的数据描述来进行数据的呈现。通过访谈和焦点小组讨论获得的质化数据是基于访谈和焦点小组讨论的提问进行的主题分析。引用了重要的回答以帮助加强定量与定性的发现。定量数据结果显示此项目对学生的学术表现有积极的影响。对学生学术的影响是源于家庭教师采用了以学生为中心的教学方式。在课堂教学中,这种教学方式并不明显。并且,此项目中对学生的一对一的帮助也促进了学生学术表现的提高。尽管具体观注的是项目中家庭教师对学生学术能力的指导,定性数据的结果惊奇的显示了学生社会技巧和能力的提升。本研究也说明家庭教师在此项目中占据重要角色,因此建议如果期待足够的改变和进步,政府和项目协调人应该联合起来是为教师装备必要的工具和知识,因此,我们的孩子能够在学术上得到很好的发展。依据他们的专业知识,这些项目的协调者已清晰地解析了不足之处,包括所缺少的可以由教育部分配的工具、需要以及资金。

关键词：家庭教师 youth 焦点小组 mathematics classroom schools discussion 联合起来高水平学术 interview

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A Robust and Efficient Adaptive Multigrid Solver for the Optimal Control of Phase Field Formulations of Geometric Evolution Laws

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Communications in Computational Physics 2017年第1期21卷 65-92页

作者： FengWei Yang Chandrasekhar Venkataraman vanessa Styles Anotida Madzvamuse Department of Mathematics University of SussexUK School of Mathematics&Statistics University of St AndrewsUK.

We propose and investigate a novel solution strategy to efficiently and accurately compute approximate solutions to semilinear optimal control problems,focusing on the optimal control of phase field formulations of geometric evolution *** optimal control of geometric evolution laws arises in a number of applications in fields including material science,image processing,tumour growth and cell *** this,many open problems remain in the analysis and approximation of such *** the current work we focus on a phase field formulation of the optimal control problem,hence exploiting the well developed mathematical theory for the optimal control of semilinear parabolic partial differential *** of the resulting optimal control problemis computationally challenging,requiring massive amounts of computational time and memory *** main focus of this work is to propose,derive,implement and test an efficient solution method for such *** solver for the discretised partial differential equations is based upon a geometric multigrid method incorporating advanced techniques to deal with the nonlinearities in the problem and utilising adaptive mesh *** in-house twogrid solution strategy for the forward and adjoint problems,that significantly reduces memory requirements and CPU time,is proposed and investigated ***,parallelisation as well as an adaptive-step gradient update for the control are employed to further improve *** with a detailed description of our proposed solution method together with its implementation we present a number of computational results that demonstrate and evaluate our algorithms with respect to accuracy and efficiency.A highlight of the present work is simulation results on the optimal control of phase field formulations of geometric evolution laws in 3-D which would be computationally infeasible without the solution strategies proposed in the present work.

关键词： Optimal control geometric evolution law phase field multigrid parallel mesh adaptivity two-grid solution strategy

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Isolation and mental health:thinking outside the box

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General Psychiatry 2021年第3期34卷 169-172页

作者： vanessa Brown Tezonia Morgan Andrew Fralick Department of Clinical Psychology Michigan School of PsychologyFarmington HillsMichiganUSA Wings of Virtue Counseling and Research Institute SouthfieldMichiganUSA Ascension Eastwood Behavioral Health Ascension MichiganLivoniaMichiganUSA

Social isolation is a universal human experi-ence,impacting whole communities at times and reminding each individual of our need for *** weaves through life on an intrapersonal,interpersonal and exis-tential level;all individuals experience this phenomenon,to varying degrees,at points in their *** has shown that persistent social isolation is a predictor for cardiovascular problems,mental health disor-ders and increased mortality rates.1 There-fore,it is crucial for healthcare professionals to understand the various forms in which isolation can manifest and ways to foster meaning as a protective *** mental health professionals,we must grow in our understanding and willingness to imagine novel solutions for persistent isolation that aid the long-term health of individuals.

关键词： interpersonal outside meaning

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Modifications produced by selective inhibitors of cyclooxygenase and ultra low dose aspirin on platelet activity in portal hypertension

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World Journal of Gastroenterology 2007年第38期13卷 5065-5070页

作者： Francisco X Eizayaga Omar Aguejouf vanessa Desplat Philippe Belon Christian Doutremepuich CEBBAD Universidad Maimónides Buenos Aires Argentina France Laboratoire d'Hématologie Université Victor Segalen Bordeaux 2 Bordeaux 146 Rue Léo Saignat 33076 Bordeaux Cedex France Laboratoires Boiron Sainte-Foy-les-Lyons France

AIM: To study the mechanism involved in the potentially beneficial effect of ultra low dose aspirin (ULDA) in prehepatic portal hypertension, rats were pretreated with selective COX 1 or 2 inhibitors (SC-560 or NS-398 respectively), and subsequently injected with ULDA or placebo. METHODS: Portal hypertension was induced by portal vein ligation. Platelet activity was investigated with an in-vivo model of laser induced thrombus production in mesenteric circulation and induced hemorrhagic time (IHT). Platelet aggregation induced by ADP and dosing of prostanoid products 6-keto-PGF1α, TXB2, PGE2 and LTB4 were also performed. RESULTS: The portal hypertensive group receiving a placebo showed a decreased in vivo platelet activity with prolonged IHT, an effect that was normalized by ULDA. SC-560 induced a mild antithrombotic effect in the normal rats, and an unmodified effect of ULDA. NS-398 had a mild prothrombotic action in portal hypertensive rats, similar to ULDA, but inhibited a further effect when ULDA was added. An increased 6-keto-PGF1α was observed in portal hypertensive group that was normalised after ULDA administration. TXA2 level after ULDA, remained unchanged. CONCLUSION: These results suggest that the effect of ULDA on platelet activity in portal hypertensive rats, could act through a COX 2 pathway more than the COX 1, predominant for aspirin at higher doses.

关键词： Ultra Low Dose Aspirin Portal hypertension COX 1 COX 2 COX selective inhibition

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Targeting mRNA translation aberrations:A novel approach for therapy in chronic lymphocytic leukemia

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Cancer Communications 2023年第12期43卷 1373-1376页

作者： vanessa Klapp Jerome Paggetti Anne Largeot Etienne Moussay Tumor Stroma Interactions Department of Cancer Research Luxembourg Institute of Health Luxembourg Luxembourg Faculty of Science Technology and Medicine University of Luxembourg Esch-sur-Alzette Luxembourg

1 mRNA TRANSLATION IS AFFECTED IN CHRONIC LYMPHOCYTIC LEUKEMIA(CLL)AT VARIOUS LEVELS mRNA translation dynamics enable tight regulation of protein expression and rapid stress adaptation;however,its contribution to oncogenesis is overlooked compared to genetic and epigenetic *** in mRNA translation are a common feature of cancer and are established as a therapeutic *** is growing evidence of dysregulated protein synthesis in CLL.

关键词： lymphocytic leukemia translation

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Understanding how environmental heterogeneity and elevation drives the distribution of woody communities across vegetation types within the campo rupestre in South America

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Journal of Mountain Science 2021年第5期18卷 1192-1207页

作者： Marcelo Leandro BUENO vanessa Leite REZENDE Luiza Fonseca A.DE PAULA João Augusto Alves MEIRA-NETO JoséRoberto Rodrigues PINTO Andreza Viana NERI vanessa PONTARA State University of Mato Grosso do Sul Laboratory of Macroecology and EvolutionMundo Novo79980-000Mato Grosso do SulBrazil Federal University of Lavras Department of BiologyEcology and Conservation SectorLavras37200-000Minas GeraisBrazil Federal University of Minas Gerais Department of GeneticsEcology and EvolutionBelo Horizonte31270-901PampulhaMinas GeraisBrazil Federal University of Viçosa Department of Plant BiologyLaboratory of Ecology and Evolution of PlantsCampus Universitário36570-900ViçosaMinas GeraisBrazil University of Brasília Department of Forest EngineeringBrasília70910-900Federal DistrictBrazil

The campo rupestre sensu lato is a vegetation type that occurs in South American mountains,supports a distinctive flora characterized by high rates of endemism,high herbaceous species richness and often-neglected but also species-rich of the arboreal *** aimed to investigate how environmental factors and elevation are associated with the distribution and diversity of woody species in different rupestrian vegetation types across South *** a database of 2,049 woody species from 185 sites across four vegetation types within the campo rupestre,we assessed how the vegetation types were grouped according to their floristic composition and number of shared indicator species,as well as by using different beta diversity *** most important variables from a set of 27 variables(***,geo-edaphic and climatic)explaining species distribution were identified using redundancy analysis(RDA)and variation partitioning *** distribution of vegetation types was related to both environmental and spatial fractions,with a set of 17 variables retained(***,grass cover and temperature seasonality as the most important variables).There was an association between the floristic composition of each vegetation type and the elevation *** the identified vegetation types are floristically related,they are distinguished by exclusive and habitat-specialist woody *** uniqueness of vegetation types should be considered in terms of complementarity for the conservation of campos rupestres.

关键词： Beta diversity Campo rupestre Elevational gradient Rupestrian vegetation Tropical mountain Variation partitioning

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