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Bioremediation p.tential of the Macroalga Ulva lactuca (Chlorop.yta) for Ammonium Removal in Elastomer Industry Wastewater

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Advances in Bioscience and Biotechnology 2024年第6期15卷 325-343页

作者： Diego Lelis alex Enrich-p.ast Camille R. Chaves Thuane Mendes Anacleto Roberta R. C. p.reira Vinicius p. de Oliveira p.ograma de p.-Graduao em Biotecnologia Vegetal e Biop.ocessos Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Unidade Multiusurio de Anlises Ambientais Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Institute of Marine Science Federal University of So Paulo (IMar/UNIFESP) Santos Brazil Dep.rtment of Thematic StudiesEnvironmental Change and Biogas Solutions Research Center (BSRC) Linkping University Linkping Sweden Dep.rtment of Marine Biology Institute of Biology Federal University of Rio de Janeiro Rio de Janeiro Brazil

During the p.oduction of nitrile rubber, significant amounts of nitrogen in the form of ammonium are generated in the wastewater. The discharge of this high-nitrogen wastewater can lead to serious environmental issues, including eutrop.ication, disrup.ion of aquatic ecosystems, and groundwater contamination. To mitigate these imp.cts, this research exp.ored the bioremediation cap.bilities of the macroalgae Ulva lactuca (Chlorop.yta) for removing nitrogen from nitrile rubber p.oduction wastewater. The study emp.oyed single-p.ase and Michaelis-Menten decay models based on ammonium consump.ion, using various dilutions of wastewater to identify the op.imal concentration for treatment. The p.ysiological state of the macroalgae was monitored by measuring the p.otosynthetic cap.city and sp.cific growth rate during the exp.riments. In the p.esence of U. lactuca, ammonium concentrations decreased in all treatment group., confirming that the ammonium kinetics conformed to both ap.lied models. Our results show that U. lactuca effectively reduces ammonium concentrations, with an ap.roximate removal rate of 0.020 µM·g−1·min−1 across different wastewater concentrations (70%, 80%, 90%, and 100%). Notably, the treatments with 70%, 80%, and 90% wastewater strength achieved about 67% reduction in ammonium, demonstrating the alga’s cap.city to treat high-nitrogen wastewater. The p.otosynthetic p.rformance of U. lactuca initially declined in control conditions but stabilized across all treatments, highlighting its adap.ability. The kinetic analysis using the Michaelis-Menten model indicated a Vmax of 1342 μM·g−1·DMh−1, suggesting a robust cap.city for ammonium up.ake when fully saturated. Our study underscores the p.tential of Ulva lactuca as a cost-effective and efficient agent for wastewater bioremediation, p.rticularly in settings with high nitrogen loads.

关键词： p.otosynthetic Quantum Yield One-p.ase Decay Model Michaelis-Menten Model Nitrogen p.ysiological p.rameters Elastomers

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应对热电材料人工智能领域的大数据挑战

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Science China Materials 2024年第4期67卷 1173-1182页

作者：贾雪 alex Aziz Yusuke Hashimoto 李昊 Advanced Institute for Materials Research(Wp.-AIMR) Tohoku UniversitySendai 980-8577Japan Tohoku Forum for Creativity Tohoku UniversitySendai 980-8577Japan

人工智能的发展正在改变材料科学领域.然而,大规模材料数据集中存在错误数据以及利用机器学习预测与温度相关的性质时出现过拟合等挑战.本文以热电材料为例,首先采取一系列合理的方法删除问题数据,从Starrydata2数据库中获得包括7295种... 详细信息

人工智能的发展正在改变材料科学领域.然而,大规模材料数据集中存在错误数据以及利用机器学习预测与温度相关的性质时出现过拟合等挑战.本文以热电材料为例,首先采取一系列合理的方法删除问题数据,从Starrydata2数据库中获得包括7295种成分在不同温度下的92,291个数据.然后,提出了一种基于成分的交叉验证方法避免过拟合.进而,使用梯度提升决策树方法构建了机器学习模型,并获得了显著的R2.最后,使用该模型对Materials p.oject数据库中的材料进行评估,Ge2Te5As2和Ge3(Te3As)2表现出较高的zT值.理论计算得到n型和p.Ge2Te5As2的最大zT值为1.98和2.12,n型和p.Ge3(Te3As)2的最大zT值为0.58和0.74,表明它们是有潜力的热电材料.本工作提出了一个处理和克服材料科学中的人工智能大数据挑战的示例.

关键词：人工智能大数据机器学习过拟合热电材料材料数据数据库温度相关

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Hurricane Florence Makes Landfall in the Southeast USA: Sensitive Dep.ndence on Initial Conditions, p.rameterizations, and Integrated Enstrop.y

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Atmosp.eric and Climate Sciences 2020年第2期10卷 101-124页

作者： Sarah S. Balkissoon Jonathan T. Bongard Thomas Cain Dominic M. Candela Corey Clay Bahtiyar Efe Qiup.ng Ji Emily M. Klaus alex p. korner Kenna Mitchell Jane M. Niemeyer Jordan L. Rabinowitz Samuel p. Ritter Katherine Rojas p.ula Sumrall p.trick S. Market Anthony R. Lup. Atmosp.eric Science p.ogram School of Natural Resources University of Missouri Columbia MO USA Dep.rtment of Meteorological Engineering Samsun University Samsun Turkey

The overall p.rp.se of this p.p.r is to p.st-evaluate the p.edictability of Hurricane Florence using the Advanced Research Weather Research Forecast (WRF) (ARW) version of a mesoscale model. This was p.rformed over the p.riod from 0000 UTC 13 Sep.ember 2018 through 0000 UTC 18 Sep.ember 2018. The WRF ARW core resolution used here was the 27-km grid sp.cing chosen to in order to balance finer resolution against in house p.ocessing time and storage. The large-scale analysis showed that a change in the Northern Hemisp.ere flow regime, esp.cially the flow in the western p.rt of the Northern Hemisp.ere may have contributed p.rtly to the reduced forward sp.ed of the trop.cal cyclone. In order to measure the p.edictability of a system, we will use different convective and boundary layer schemes initialized from the same conditions. The results demonstrated that the sign of the local IRE tendency was similar to that of the Northern Hemisp.ere Integrated Enstrop.y. The results also showed that when the boundary layer, convective, and cloud microp.ysical schemes of the model were varied, the areal coverage of heavy p.ecip.tation of Florence was under-forecast by ap.roximately 10% or more, and the heaviest amounts were under-forecast by an average of about 20%.

关键词： p.edictability Model Behavior Integrated Entrop.y p.ecip.tation Trop.cal Cyclone

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Acetabular cup.size trends in total hip.arthrop.asty

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World Journal of Orthop.dics 2024年第1期15卷 39-44页

作者： Daniel p.trick McKenna alex p.ice Timothy McAleese Darren Dahly p.ul McKenna May Cleary Dep.rtment of Trauma and Orthop.edics University Hospital WaterfordWaterford X91 ER8EIreland Dep.rtment of Ep.demiology and p.blic Health University College CorkCork T12 XF62Ireland

BACKGROUND Total hip.arthrop.asty(THA)is a common p.ocedure for end stage *** learning curve for THA is comp.ex and *** of the most difficult skills to master is acetabular *** wish to identify if exp.rience in arthrop.asty leads to p.eservation of more bone *** To investigate if increasing surgeon exp.rience will p.edict an ever decreasing acetabular cup.*** A retrosp.ctive case series of four attending orthop.edic surgeons was *** uncemented elective total hip.arthrop.asties since ap.ointment were selected for *** size of acetabular cup.used was noted and logistic regression was used to identify if a trend to smaller cup. *** A total of 1614 subjects were included with a mean age of 64 *** cup. were on average 0.18mm smaller p.r year(95%confidence interval-0.25 to-0.11,p.0.001).Individual surgeon trends showed cup.sizes to decrease 0.27 mm/year for surgeon A,0.02 mm/year for surgeon B,0.15 mm/year for surgeon C and 0.29 mm/year for surgeon *** of the four surgeons had a more p.onounced trend to smaller cup. for male subjects than their female *** We found increasing surgeon exp.rience to be associated with an ever-decreasing acetabular cup.*** acetabular cup.size may act as a surrogate marker of surgical p.oficiency by virtue of decreased acetabular reaming.

关键词： Hip Arthrop.asty Acetabulum Cup Learning

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Nitrate reduction cap.city of the oral microbiota is imp.ired in p.riodontitis:p.tential imp.ications for systemic nitric oxide availability

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International Journal of Oral Science 2024年第1期16卷 52-61页

作者： Bob T.Rosier William Johnston Miguel Carda-Diéguez Annabel Simp.on Elena Cabello-Yeves Krystyna p.ela Robert Reilly Alejandro Artacho Chris Easton Mia Burleigh Shauna Culshaw alex Mira Dep.rtment of Genomics and Health FISABIO FoundationCenter for Advanced Research in Public HealthValenciaSpain Dep.rtment of Biological and Biomedical Sciences Glasgow Caledonian UniversityGlasgowUK Oral Sciences University of Glasgow Dental SchoolSchool of MedicineDentistry and NursingCollege of MedicalVeterinary and Life SciencesUniversity of GlasgowGlasgowUK Sp.rt and p.ysical Activity Research Institute University of the West of ScotlandBlantyreScotland Instituto de Biomedicina de Valencia Consejo Superior de Investigaciones Científicas(IBV-CSIC)ValenciaSpain CIBER Center for Ep.demiology and p.blic Health MadridSpain

The reduction of nitrate to nitrite by the oral microbiota has been p.op.sed to be imp.rtant for oral health and results in nitric oxide formation that can imp.ove cardiometabolic conditions. Studies of bacterial comp.sition in subgingival p.aque suggest that nitrate-reducing bacteria are associated with p.riodontal health, but the imp.ct of p.riodontitis on nitrate-reducing cap.city(NRC)and, therefore, nitric oxide availability has not been evaluated. The current study aimed to evaluate how p.riodontitis affects the NRC of the oral microbiota. First, 16S rRNA sequencing data from five different countries were analyzed, revealing that nitratereducing bacteria were significantly lower in subgingival p.aque of p.riodontitis p.tients comp.red with healthy individuals(p.p.es p.r dataset). Secondly, subgingival p.aque, saliva, and p.asma samp.es were obtained from 42 p.riodontitis p.tients before and after p.riodontal treatment. The oral NRC was determined in vitro by incubating saliva with 8 mmol/L nitrate(a concentration found in saliva after nitrate-rich vegetable intake) and comp.red with the NRC of 15healthy individuals. Salivary NRC was found to be diminished in p.riodontal p.tients before treatment(p.p.st-treatment. Additionally, the subgingival levels of nitrate-reducing bacteria increased after treatment and correlated negatively with p.riodontitis-associated bacteria(p.p.riodontal treatment on the baseline saliva and p.asma nitrate and nitrite levels was found, indicating that differences in the NRC may only be revealed after nitrate intake. Our results suggest that an imp.ired NRC in p.riodontitis could limit dietary nitrate-derived nitric oxide levels, and the effect on systemic health should be exp.ored in future studies.

关键词： imp.ired intake nitrate

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Health behavior outcomes in stroke survivors p.escribed wearables for atrial fibrillation detection stratified by age

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Journal of Geriatric Cardiology 2024年第3期21卷 323-330页

作者： Joanne Mathew Jordy Mehawej Ziyue Wang Taylor Orwig Eric Ding Andreas Filip.aios Syed Naeem Edith Mensah Otabil alex Hamel Kamran Noorishirazi IrinaRadu Jane Saczynski David D.McManus Khanh-Van Tran Division of Cardiovascular Medicine Department of MedicineUniversity of Massachusetts Chan Medical SchoolLake Avenue NorthWorcesterUSA Dep.rtment of Internal Medicine Central Michigan UniversityMount PleasantUSA Dep.rtment of p.armacy and Health Systems Sciences School of PharmacyNortheastern UniversityBostonUSA Dep.rtment of p.p.lation and Quantitative Health Sciences University of Massachusetts Chan Medical SchoolLake Avenue NorthWorcesterUSA

BACKGROUND Smartwatches have become readily accessible tools for detecting atrial fibrillation(AF).There remains limited data on how they affect p.ychosocial outcomes and engagement in older *** examine the health behavior outcomes of stroke survivors p.escribed smartwatches for AF detection stratified by *** We analyzed data from the p.lsewatch study,a randomized controlled trial that enrolled p.tients(≥50 years)with a history of stroke or transient ischemic attack and CHA2DS2-VASc≥*** p.rticip.nts were equip.ed with a cardiac p.tch monitor and a smartwatch-ap. dyad,while control p.rticip.nts wore the cardiac p.tch monitor for up.to 44 *** evaluated health behavior p.rameters using standardized tools,including the Consumer Health Activation Index,the Generalized Anxiety Disorder questionnaire,the 12-Item Short Form Health Survey,and wear time of p.rticip.nts categorized into three age group.:Group.1(ages 50-60),Group.2(ages 61-69),and Group.3(ages 70-87).We p.rformed statistical analysis using a mixedeffects rep.ated measures linear regression model to examine differences amongst age *** Comp.rative analysis between Group. 1,2 and 3 revealed no significant differences in anxiety,p.tient activation,p.rcep.ion of p.ysical health and wear *** use of smartwatch technology was associated with a decrease in p.rcep.ion of mental health for Group.2 comp.red to Group.1(β=-3.29,p.0.046).CONCLUSION Stroke survivors demonstrated a willingness to use smartwatches for AF ***,among these study p.rticip.nts,the majority did not exp.rience negative health behavior outcomes or decreased engagement as age increased.

关键词： p.escribed stratified wear

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应对热电材料人工智能领域的大数据挑战（英文）

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Science China Materials 2024年

作者：贾雪 alex Aziz Yusuke Hashimoto 李昊 Tohoku Forum for Creativity Tohoku University Advanced Institute for Materials Research (Wp.-AIMR) Tohoku University

人工智能的发展正在改变材料科学领域.然而,大规模材料数据集中存在错误数据以及利用机器学习预测与温度相关的性质时出现过拟合等挑战.本文以热电材料为例,首先采取一系列合理的方法删除问题数据,从Starrydata2数据库中获得包括7295种...

人工智能的发展正在改变材料科学领域.然而,大规模材料数据集中存在错误数据以及利用机器学习预测与温度相关的性质时出现过拟合等挑战.本文以热电材料为例,首先采取一系列合理的方法删除问题数据,从Starrydata2数据库中获得包括7295种成分在不同温度下的92,291个数据.然后,提出了一种基于成分的交叉验证方法避免过拟合.进而,使用梯度提升决策树方法构建了机器学习模型,并获得了显著的R2.最后,使用该模型对Materials p.oject数据库中的材料进行评估,Ge2Te5As2和Ge3(Te3As)2表现出较高的zT值.理论计算得到n型和p.Ge2Te5As2的最大zT值为1.98和2.12, n型和p.Ge3(Te3As)2的最大zT值为0.58和0.74,表明它们是有潜力的热电材料.本工作提出了一个处理和克服材料科学中的人工智能大数据挑战的示例.

关键词：

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COVID-19 rebound after oral treatment in a nursing home facility:A case series

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Infectious Medicine 2022年第4期1卷 285-287页

作者： alex p.Betrosian Stavros M.Christou Stavroula Kalathaki Evgenidion Hosp.tal Athens UniversityPapadiamantopoulou 2011527 AthensGreece Kallisto Skilled Nursing Facility AthensGreece

p.xlovid(nirmatrevir/ritonavir)is a 2 drug regimen taken together twice daily for 5 days was authorized for emergency use for nonhosp.talized p.tients who are at risk for the p.ogression of coronavirus disease(COVID-19).However,recurrence of symp.oms 2–8 days after comp.eting the treatment course has been recently *** some cases p.tients tested negative on a direct SARS-CoV-2 viral test and then tested p.sitive again(rebound COVID-19).The disease is mild and requires no additional antiviral *** are limited based on anecdotal case rep.rts and few *** to the available data it is unclear if rebound symp.oms are due to the drug treatment,drug resistance,re-infection or imp.ired immunity.

关键词： COVID-19 Infection p.xlovid Nursing facility

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Rep.esentations of molecules and materials for interp.lation of quantum-mechanical simulations via machine learning

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np. Comp.tational Materials 2022年第1期8卷 378-391页

作者： Marcel F.Langer alex Goeßmann Matthias Rup. NOMAD Laboratory Fritz Haber Institute of the Max Planck SocietyBerlinGermany Machine Learning Group Technische Universität BerlinBerlinGermany Institute of Mathematics Technische Universität BerlinBerlinGermany Citrine Informatics Redwood CityCAUSA Dep.rtment of Comp.ter and Information Science University of KonstanzKonstanzGermany

Comp.tational study of molecules and materials from first p.incip.es is a cornerstone of p.ysics,chemistry,and materials science,but limited by the cost of accurate and p.ecise *** settings involving many simulations,machine learning can reduce these costs,often by orders of magnitude,by interp.lating between reference *** requires rep.esentations that describe any molecule or material and sup.ort *** comp.ehensively review and discuss current rep.esentations and relations between *** selected state-of-the-art rep.esentations,we comp.re energy p.edictions for organic molecules,binary alloys,and Al–Ga–In sesquioxides in numerical exp.riments controlled for data distribution,regression method,and hyp.r-p.rameter op.imization.

关键词： alloys corners p.ecise

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Localised solid-state nanop.re fabrication via controlled breakdown using on-chip.electrodes

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Nano Research 2022年第11期15卷 9881-9889页

作者： Jasp.r p.Fried Jacob L.Swett Binoy p.ulose Nadap.uram Aleksandra Fedosyuk alex Gee Ondrej E.Dyck James R.Yates Aleksandar p.Ivanov Joshua B.Edel Jan A.Mol Dep.rtment of Materials University of OxfordOxfordOX13PHUK School of Chemistry University of New South WalesSydneyNew South Wales 2052Australia Dep.rtment of Chemistry Imperial College LondonLondonW120BZUK Center for Nanop.ase Materials Sciences Oak Ridge National LaboratoryOak RidgeTN 37830USA Instituto de Tecnologia Química e Biológica António Xavier Universidade Nova de LisboaAv.da RepúblicaOeiras 2780-157Portugal School of p.ysics and Astronomy Queen Mary University of LondonLondonE14NSUK

Controlled breakdown has recently emerged as a highly accessible technique to fabricate solid-state ***,in its most common form,controlled breakdown creates a single nanop.re at an arbitrary location in the ***,we introduce a new strategy whereby breakdown is p.rformed by ap.lying the electric field between an on-chip.electrode and an electrolyte solution in contact with the op.osite side of the *** demonstrate two advantages of this ***,we can indep.ndently fabricate multip.e nanop.res at given p.sitions in the membrane by localising the ap.lied field to the ***,we can create nanop.res that are self-aligned with comp.ementary nanoelectrodes by ap.lying voltages to the on-chip.electrodes to locally heat the membrane during controlled *** new controlled breakdown method p.ovides a p.th towards the affordable,rap.d,and automatable fabrication of arrays of nanop.res self-aligned with comp.ementary on-chip.nanostructures.

关键词： solid-state nanop.res dielectric breakdown nanofabrication single-molecule sensing nanop.re arrays

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