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Positive intercropping effects on biomass production are species-specific and involve rhizosphere enzyme activities: Evidence from a field study

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Soil Ecology Letters 2022年第4期4卷 444-453页

作者： Amit Kumar Evgenia Blagodaskaya michaela a.dippold Vicky M.Temperton Institute of Ecology Faculty of SustainabilityLeuphana University Lüneburg21335LuneburgGermany Department of Soil Ecology Helmholtz Center for Environmental Research-UFZ Halle06120Halle(Saale)Germany Agro-Technology Institute RUDN University117198MoscowRussia Biogeochemistry of Agroecosystems University of GoettingenBuesgenweg 237077GoettingenGermany

Less attention has been given to soil enzymes that contribute to beneficial rhizosphere interactions in intercropping ***,we performed a field experiment by growing faba bean,lupine,and maize in mono and mixed cultures in a moderately fertile *** measured shoot biomass and the kinetic parameters(maximal velocity(V max)and Michaelis-constant(K m))of three key enzymes in the rhizosphere:Leucine-aminopeptidase(LAP),β-1,4-N-acetylglucosaminidase(NAG),and phosphomonoesterase(PHO).Faba bean benefitted in mixed cultures by greater shoot biomass production with both maize and lupine compared to its expected biomass in ***,LAP and NAG kinetic parameters were less responsive to mono and mixed cultures across the crop *** contrast,both the V max and K m values of PHO increased in the faba bean rhizosphere when grown in mixed cultures with maize and lupine.A positive relative interaction index for shoot P and N uptake for faba bean showed its net facilitative interactions in the mixed ***,these results suggest that over-productivity in intercropping is crop-specific and the positive intercropping effects could be modulated by P *** argue that the enzyme activities involved in nutrient cycling should be incorporated in further research.

关键词： Enzyme kinetic parameters Phosphorus mobilization Nitrogen fixation Niche complementarity Biomass increase Relative interaction index

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Compositional variations of active autotrophic bacteria in paddy soils with elevated CO_(2) and temperature

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Soil Ecology Letters 2020年第4期2卷 295-307页

作者： Chen Zhu Ning Ling Ling Li Xiaoyu Liu michaela a.dippold Xuhui Zhang Shiwei Guo Yakov Kuzyakov Qirong Shen Jiangsu Provincial Key Lab for Organic Solid Waste Utilization Nanjing Agricultural UniversityNanjing 210095China College of Resources and Environmental Sciences Nanjing Agricultural UniversityNanjing 210095China Department of Soil Science of Temperate Ecosystems Department of Agricultural Soil ScienceUniversity of Goettingen37073 GöttingenGermany Institute of Environmental Sciences Kazan Federal University420049 KazanRussia Agro-Technology Institute RUDN University117198 MoscowRussia

Global warming is an increasingly serious ecological problem,we examined how the active autotrophic microbes in paddy soils respond to the elevated CO_(2) and *** we employed stable isotope probing(SIP)to label the active bacteria using the soil samples from a fully factorial Simulated Climate Change(SCC)field experiment where soils were exposed to ambient CO_(2) and temperature,elevated temperature,elevated CO_(2),and both elevated CO_(2) and *** 28.9% of active OTUs belonged to ammonia-oxidizing bacteria(AOB)and nitrite-oxidizing bacteria(NOB).Nitrosospira taxa was dominant in all soils and 80.4% of carbon-fixing bacteria under elevated temperature were classified as Nitrosomonas *** no labeled NOBs were detected when temperature or CO_(2) were elevated independently,diverse NOBs were detected in the ambient *** found that elevated CO_(2) and temperature had contrasting effects on microbial community composition,while relatively small changes were observed when CO_(2) and temperature were elevated *** these results suggest that carbon-fixing bacteria can respond positively to elevated CO_(2) concentrations,but when it’s accompanied with increase in the temperature this positive response could be *** abiotic factors thus need to be considered when predicting how microbial communities will respond to multiple climatic factors.

关键词： Climate change Paddy soil Ammonia-oxidizing bacteria Nitrite-oxidizing bacteria Stable isotope probing Microbial community

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Excess non-COVID-19-related mortality among inflammatory bowel disease decedents during the COVID-19 pandemic

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World Journal of Gastroenterology 2024年第20期30卷 2677-2688页

作者： Sarah Rotondo-Trivette Xin-Yuan He Jamil S Samaan Fan Lv Emily Truong michaela Juels Anthony Nguyen Xu Gao Jian Zu Yee Hui Yeo Fan-Pu Ji Gil Y Melmed Department of Medicine Cedars-Sinai Medical CenterLos AngelesCA 90048United States Department of Infectious Disease The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004Shaanxi ProvinceChina Karsh Division of Gastroenterology and Hepatology Department of Medicine Cedars-Sinai Medical CenterLos AngelesCA 90048United States School of Mathematics and Statistics Xi’an Jiaotong UniversityXi’an 710049Shaanxi ProvinceChina David Geffen School of Medicine University of CaliforniaLos AngelesLos AngelesCA 90095United States Division of Gastroenterology The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004Shaanxi ProvinceChina National and Local Joint Engineering Research Center of Biodiagnosis and Biotherapy The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004Shaanxi ProvinceChina Key Laboratory of Surgical Critical Care and Life Support(Xi’an Jiaotong University) Ministry of EducationXi’an 710004Shaanxi ProvinceChina

BACKGROUND The coronavirus disease 2019(COVID-19)pandemic disrupted healthcare in the United *** To investigate COVID-19-related and non-COVID-19-related death and characteristics associated with excess death among inflammatory bowel disease(IBD)*** We performed a register-based study using data from the National Vital Statistics System,which reports death data from over 99%of the United States population,from January 1,2006 through December 31,***-related deaths among adults 25 years and older were stratified by age,sex,race/ethnicity,place of death,and primary cause of *** and actual age-standardized mortality rates(ASMRs)per 100000 persons were *** 49782 IBD-related deaths occurred during the study ***-COVID-19-related deaths increased by 13.14%in 2020 and 18.12%in 2021[2020 ASMR:1.55 actual vs 1.37 predicted,95%confidence interval(CI):1.26-1.49;2021 ASMR:1.63 actual vs 1.38 predicted,95%CI:1.26-1.49].In 2020,non-COVID-19-related mortality increased by 17.65%in ulcerative colitis(UC)patients between the ages of 25 and 65 and 36.36%in non-Hispanic black(NHB)Crohn’s disease(CD)*** the pandemic,deaths at home or on arrival and at medical facilities as well as deaths due to neoplasms also *** IBD patients suffered excess non-COVID-19-related death during the *** death was associated with younger age among UC patients,and with NHB race among CD *** death at home or on arrival and due to neoplasms suggests that delayed presentation and difficulty accessing healthcare may have led to increased IBD mortality.

关键词： Inflammatory bowel disease Ulcerative colitis Crohn’s disease COVID-19 Excess death Race Sex Disparities

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用于先进光刻的混金属钛锆氧簇光刻胶（英文）

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Science China Materials 2024年

作者：乔洋史广月张鸥李尤 michaela Vockenhuber Yasin Ekinci 罗锋张磊 School of Materials Science and Engineering Nankai University Paul Scherrer Institute Laboratory for Micro and Nanotechnology Institute of Modern Optics College of Electronic Information and Optical Engineering Nankai University

极紫外光刻（EUVL）和电子束光刻（EBL）被认为是制造纳米级半导体器件的关键光刻技术.然而,随着业界对分辨率、灵敏度和粗糙度等方面的要求日益提升,开发符合产业界需要的极紫外光刻胶仍面临着挑战.近年来,金属氧簇光刻胶因其对极紫外...

极紫外光刻（EUVL）和电子束光刻（EBL）被认为是制造纳米级半导体器件的关键光刻技术.然而,随着业界对分辨率、灵敏度和粗糙度等方面的要求日益提升,开发符合产业界需要的极紫外光刻胶仍面临着挑战.近年来,金属氧簇光刻胶因其对极紫外光的高吸收截面和纳米级均一尺寸,在EUV光刻领域引起了广泛关注.在本研究中,我们采用混金属策略合成了四种钛锆氧簇光刻胶,并详细研究了它们的溶解性、显影剂的选择、电子束和极紫外光刻性能、复杂图案转移能力以及相比硅的蚀刻选择性.研究结果表明, R-4光刻胶在低剂量电子束下可实现25 nm的特征尺寸,而在EUV光刻测试中, 19.7 mJ cm-2的灵敏度即可获得50 nm的分辨率.本研究提出了一种通过混金属策略优化金属氧簇光刻胶性能的方法,为下一代商用EUV光刻胶的开发提供了新的思路.

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Epigenetic therapeutics in dental pulp treatment: Hopes, challenges and concerns for the development of next-generation biomaterials

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Bioactive Materials 2023年第9期27卷 574-593页

作者： Henry F.Duncan Yoshifumi Kobayashi michaela Kearney Emi Shimizu Division of Restorative Dentistry&Periodontology Dublin Dental University HospitalTrinity College DublinUniversity of DublinLincoln PlaceDublinIreland Department of Oral Biology Rutgers School of Dental MedicineNewarkNJUSA

This opinion-led review paper highlights the need for novel translational research in vital-pulp-treatment(VPT),but also discusses the challenges in translating evidence to *** dentistry is expensive,invasive and relies on an outmoded mechanical understanding of dental disease,rather than employing a biological perspective that harnesses cell activity and the *** research has focussed on developing minimally-invasive biologically-based‘fillings’that preserve the dental pulp;research that is shifting the paradigm from expensive high-technology dentistry,with high failure rates,to smart restorations targeted at biological *** VPTs promote repair by recruiting odontoblast-like cells in a material-dependent ***,exciting opportunities exist for development of next-generation biomaterials targeted at regenerative processes in the dentin-pulp *** article analyses recent research using pharmacological-inhibitors to therapeutically-target histone-deacetylase(HDAC)enzymes in dental-pulp-cells(DPCs)that stimulate pro-regenerative effects with limited loss of ***,HDAC-inhibitors have the potential to enhance biomaterial-driven tissue responses at low concentration by influencing the cellular processes with minimal side-effects,providing an opportunity to develop a topically-placed,inexpensive bio-inductive pulp-capping *** positive results,clinical translation of these innovations requires enterprise to counteract regulatory obstacles,dental-industry priorities and to develop strong academic/industry *** aim of this opinion-led review paper is to discuss the potential role of therapeutically-targeting epigenetic modifications as part of a topical VPT strategy in the treatment of the damaged dental pulp,while considering the next steps,material considerations,challenges and future for the clinical development of epigenetic therapeutics or other‘smart’restora

关键词： Epigenetics Vital pulp treatment Histone deacetylase inhibitors Regenerative endodontics Pulp capping

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Fuel cell development for New Energy Vehicles (NEVs) and clean air in China

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Progress in Natural Science:Materials International 2018年第2期28卷 113-120页

作者： michaela Kendall Midlands Fuel Cell and Hydrogen Network (MFCHN) and Business Forum Birmingham City University

This paper reviews the background to New Energy Vehicles(NEV) policies in China, and the key scientific and market challenges that need to be addressed to accelerate fuel cells(FCs) in the rapidly developing NEV *** global significance of the Chinese market, key players, core FC technologies and future research priorities are discussed.

关键词： New energy vehicle(NEV) Electric vehicle(EV) Hybrid vehicle(HV) Battery electric vehicle(BEV) Fuel cell vehicle(FCV) Fuel cell bus Range extender Polymer electrolyte membrane fuel cell(PEM FC) Solid oxide fuel cell(SOFC) Hydrogen Clean air in China

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Virtual reality for immersive multi-user firefighter-training scenarios

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Virtual Reality & Intelligent Hardware 2022年第5期4卷 406-417页

作者： Philipp BRAUN michaela GRAFELMANN Felix GILL Hauke STOLZ Johannes HINCKELDEYN Ann-Kathrin LANGE Hamburg University of Technology Hamburg 21073Germany

Background Virtual reality(VR)applications can be used to provide comprehensive training scenarios that are difficult or impossible to represent in physical *** includes team training for emergency services such as *** a high level of immersion is essential for achieving effective virtual *** this respect,motion-capture systems offer the possibility of creating highly immersive multi-user training experiences,including full-body *** This study presents a preliminary prototype that helps extin-guish a virtual fire on a container ship as a VR training *** prototype provides a full-body and multi-user VR experience based on the synthesis of position data provided by the motion-capture system and orientation data from the VR ***,the prototype facilitates an initial evaluation of the *** The results confirm the value of using VR for training procedures that are difficult to implement in the real ***,the results show that motion-capture-based VR technologies are particularly useful for firefighting training,in which participants can collaborate in difficult-to-access ***,this study also indicates that increasing the immersion in such training remains a *** This study presents a prototypical VR application that enables the multi-user training of maritime *** research should evaluate the initial results,provide more extensive training scenarios,and measure the training progress.

关键词： Virtual reality Multi-user Motion capture Training Firefighting

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Treatment of colonic varices and gastrointestinal bleeding by recanalization and stenting of splenic-vein-thrombosis:A case report and literature review

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World Journal of Gastroenterology 2023年第24期29卷 3922-3931页

作者： Lisa-michaela Füssel Rene Müller-Wille Patrick Dinkhauser Walter Schauer Harald Hofer Department of Internal Medicine Ⅰ Gastroenterology and HepatologyKlinikum Wels-GrieskirchenWels 4600Austria Department of Radiology Klinikum Wels-GrieskirchenWels 4600Austria Department of Abdominal Surgery Klinikum Wels-GrieskirchenWels 4600Austria

BACKGROUND Splenic vein thrombosis is a known complication of *** can lead to increased blood flow through mesenteric *** segmental hypertension may result in the development of colonic varices(CV)with a high risk of severe gastrointestinal *** clear guidelines for treatment are lacking,splenectomy or splenic artery embolization are often used to treat *** vein stenting has been shown to be a safe *** SUMMARY A 45-year-old female patient was admitted due to recurrent gastrointestinal *** was anemic with a hemoglobin of 8.0 g/*** a source of bleeding,CV were *** tomography scans revealed thrombotic occlusion of the splenic vein,presumably as a result of a severe acute pancreatitis 8 years *** a selective angiography,a dilated mesenterial collateral leading from the spleen to enlarged vessels in the right colonic flexure and draining into the superior mesenteric vein could be *** hepatic venous pressure gradient was within normal *** an interdisciplinary board,transhepatic recanalization of the splenic vein via balloon dilatation and consecutive stenting,as well as coiling of the aberrant veins was discussed and successfully *** evaluation revealed complete regression of CV and splenomegaly as well as normalization of the red blood cell count during *** Recanalization and stenting of splenic vein thrombosis might be considered in patients with gastrointestinal bleeding due to ***,a multidisciplinary approach with a thorough workup and discussion of individualized therapeutic strategies is crucial in these difficult to treat patients.

关键词： Pancreatitis-induced splenic vein thrombosis Gastrointestinal hemorrhage Colonic varices Splenic vein stenting Segmental/sinistral hypertension Case report

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Topological Transformation during Normal Grain Growth

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Journal of Materials Science & Technology 2004年第5期20卷 601-604页

作者： ChaogangLOU michaela.PLayer SchoolofElectronicEngineering SoutheastUniversitvNanjing210018China DepartmentofEngineering UniversityofAberdeenAberdeen-AB243UEUK

This paper investigates topological transformation during normal grain growth by carrying out a computer vertex simulation. Results show that topological correlation agrees with the models proposed by Blanc et al. and Weaire. Topological transformation occurs more often on grains with some topological classes instead of equal probability on each boundary. This can be qualitatively explained by topological correlation.

关键词： Topological transformation Normal grain growth Simulation

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A numerical study of prestressed high strength steel tubular members

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Frontiers of Structural and Civil Engineering 2020年第1期14卷 10-22页

作者： michaela GKANTOU Marios THEOFANOUS Charalampos BANIOTOPOULOS Department of Civil Engineering Liverpool John Moores UniversityLiverpool L33AFUK Department of Civil Engineering University of BirminghamBirmingham B152TTUK

The structural behavior of prestressed high strength steel(HSS)tubular members is investigated through the execution of advanced finite element *** models are developed and validated against published experimental data on HSS tubular members subjected to different levels of initial prestress and loaded either in tension or *** effect of the presence or absence of grouting on the strength and ductility of the members is also *** numerically replicate the structural response recorded in the tests,some key modeling features including the employed numerical solver,the adopted material models and the element types warrant careful *** developing of the finite element models,the numerically generated ultimate loads,the corresponding failure modes and the full load-deformation curves are compared to the experimental ones,indicating a successful *** anticipated,prestressing enhances the load-bearing capacity for the tensile members,whereas it is detrimental for the compressive ones.A series of parametric studies is performed to assess the influence of key factors on the structural response of prestressed HSS members and the obtained results are *** guidance for tensile and compressive prestressed tubular members is also provided.

关键词： finite element prestressing tubular members grout high strength steel

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