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Colorful facial markings are associated with foraging rates and affiliative relationships in a wild group-living cichlid fish

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Current Zoology 2024年第1期70卷 70-78页

作者： brett M.Culbert James B.Barnett Isaac Y.ligocki Matthew G.Salena Marian Y.l.Wong Ian M.Hamilton Sigal Balshine Department of Integrative Biology University of GuelphGuelphOntarioCanada Department of Psychology Neuroscience&BehaviourMcMaster UniversityHamiltonOntarioCanada Department of Evolution Ecologyand Organismal BiologyThe Ohio State UniversityColumbusOHUSA Department of Biology Millersville UniversityMillersvillePAUSA School of Earth Atmospheric and Life SciencesUniversity of WollongongWollongongNew South WalesAustralia Department of Mathematics The Ohio State UniversityColumbusOHUSA

Many animals use color to signal their quality and/or behavioral *** signals have been well studied in the contexts of competi-tion and mate choice;however,the role of these signals in nonsexual,affiliative relationships is not as well ***,we used wild social groups of the cichlid fish Neolamprologus pulcher to investigate whether the size of a brightly colored facial patch was related to 1)individual quality,2)social dominance,and/or 3)affiliative *** with larger patches spent more time foraging and tended to perform more aggressive acts against conspecific territory *** did not find any evidence that the size of these yellow patches was related to social rank or body size,but dominant males tended to have larger patches than dominant ***,patch size had a rank-specific relationship with the number of affiliative interactions that individuals engaged *** males with large patches received fewer affiliative acts from their groupmates compared to dominant males with small ***,subordinates with large patches tended to receive more affiliative acts from their groupmates while performing fewer affiliative acts *** together,our results suggest that patch size reflects interindividual variation in foraging effort in this cichlid fish and offer some of the first evidence that colorful signals may shape affiliative relationships withinwildsocialgroups.

关键词： affiliation foraging lake Tanganyika Neolamprologus pulcher visual signals

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Hepatic pseudotumor associated with Strongyloides infection:A case report

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World Journal of Hepatology 2023年第12期15卷 1338-1343页

作者： Jessica P Gialanella Tyler Steidl Kokkola Korpela Miral S Grandhi Russell C langan H Richard Alexander Rachel M Hudacko brett l.ecker Department of Surgical Oncology Rutgers Cancer Institute of New JerseyNew BrunswickNJ 08901United States Rutgers New Jersey Medical School NewarkNJ 07103United States Department of Infectious Disease Cooperman Barnabas Medical CenterLivingstonNJ 07039United States Department of Pathology and labratory Medicine Rutgers Robert Wood Johnson Medical SchoolNew BrunswickNJ 08901United States

BACKGROUND Strongyloides sterocoralis is a parasitic infection caused by a roundworm that is transmitted through soil contaminated with *** can infrequently cause hepatic abscesses in immunocompromised patients and is rarely reported to form hepatic lesions in immunocompetent *** SUMMARY We present a case study of a 45-year-old female who presented with right upper quadrant abdominal pain and constitutional symptoms for several *** imaging identified several malignant-appearing liver *** investigation,including serological testing and histopathologic examination,revealed the presence of serum Strongyloides antibodies and hepatic granulomas with extensive *** treatment with ivermectin for 2 wk,there was complete resolution of the liver lesions and associated *** This case highlights the importance of considering parasitic infections,such as Strongyloides,in the differential diagnosis of hepatic *** recognition and appropriate treatment can lead to a favorable outcome and prevent unnecessary invasive *** awareness among clinicians is crucial to ensure the timely diagnosis and management of such cases.

关键词： Hepatic tumor liver mass Strongyloides sterocoralis Parasitology Case report

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Strategic comparison of membrane-assisted and membrane-less water electrolyzers and their potential application in direct seawater splitting(DSS)

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Green Energy & Environment 2023年第4期8卷 989-1005页

作者： Abdul Malek Xu lu Paul R.Shearing Dan J.l.brett Guanjie He Clean Combustion Research Center(CCRC) Physical Science and Engineering Division(PSE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Kingdom of Saudi Arabia KAUST Solar Center(KSC) Physical Science and Engineering Division(PSE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Kingdom of Saudi Arabia School of Engineering and Materials Science Queen Mary University of LondonMile End RoadLondon E14NSUK Department of Chemical Engineering University College London(UCL)Gower StLondon WC1E 6BTUnited Kingdom

Electrocatalytic splitting of water by means of renewable energy as the electricity supply is one of the most promising methods for storing green renewable energy as hydrogen. Although two-thirds of the earth’s surface is covered with water, there is inadequacy of freshwater in most parts of the world. Hence, splitting seawater instead of freshwater could be a truly sustainable alternative. However, direct seawater splitting faces challenges because of the complex composition of seawater. The composition, and hence, the local chemistry of seawater may vary depending on its origin, and in most cases, tracking of the side reactions and standardizing and customizing the catalytic process will be an extra challenge. The corrosion of catalysts and competitive side reactions due to the presence of various inorganic and organic pollutants create challenges for developing stable electro-catalysts. Hence, seawater splitting generally involves a two-step process, i.e., purification of seawater using reverse osmosis and then subsequent fresh water splitting. However, this demands two separate chambers and larger space, and increases complexity of the reactor design. Recently, there have been efforts to directly split seawater without the reverse osmosis step. Herein, we represent the most recent innovative approaches to avoid the two-step process, and compare the potential application of membrane-assisted and membrane-less electrolyzers in direct seawater splitting(DSS). We particularly discuss the device engineering, and propose a novel electrolyzer design strategies for concentration gradient based membrane-less microfluidic electrolyzer.

关键词： Electrocatalytic seawater splitting Direct seawater splitting Osmosis Concentration cells Membrane-less electrolyzer Microfluidic electrolyzer

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Characteristics of a gold-doped electrode for application in high-performance lithium-sulfur battery

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Journal of Energy Chemistry 2022年第1期31卷 116-128,I0004页

作者： Vittorio Marangon Daniele Di lecce Dan J.l.brett Paul R.Shearing Jusef Hassoun University of Ferrara Department of Chemical and Pharmaceutical SciencesVia Fossato di Mortara 17Ferrara44121Italy Electrochemical Innovation lab Department of Chemical EngineeringUCLLondon WC1E 7JEUnited Kingdom The Faraday Institution Quad OneBecquerel AveHarwell CampusDidcot OX11 ORAUnited Kingdom National Interuniversity Consortium of Materials Science and Technology(INSTM) University of Ferrara Research UnitUniversity of FerraraVia Fossato di Mortara17Ferrara 44121Italy

Bulk sulfur incorporating 3 wt% gold nano-powder is investigated as possible candidate to maximize the fraction of active material in the li-S battery *** material is prepared via simple mixing of gold with molten sulfur at 120℃,quenching at room temperature,and *** comprehensive study reports relevant electrochemical data,advanced X-ray computed tomography(CT)imaging of the positive and negative electrodes,and a thorough structural and morphological characterization of the S:Au 97:3 w/w *** cathode exhibits high rate capability within the range from C/10 to 1C,a maximum capacity above 1300 mAh gs^(-1),and capacity retention between 85%and 91%after 100 cycles at 1C and C/3 *** novel formulation enables a sulfur fraction in the composite cathode film as high as 78 wt%,an active material loading of 5.7 mg cm^(-2),and an electrolyte/sulfur(E/S)ratio of 5μl mg^(-1),which lead to a maximum areal capacity of 5.4 mAh cm^(-2).X-ray CT at the micro-and nanoscale reveals the microstructural features of the positive electrode that favor fast conversion kinetics in the *** analysis of sulfur distribution in the porous cathode displays that electrodeposition during the initial cycle may trigger an activation process in the cell leading to improved ***,the tomography study reveals the characteristics of the lithium anode and the cell separator upon a galvanostatic test prolonged over 300 cycles at a 2C rate.

关键词： lithium-sulfur battery Sulfur loading Electrolyte/sulfur ratio Gold nanoparticles X-ray tomography

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Structure-guided Capacitance Relationships in Oxidized Graphene Porous Materials Based Supercapacitors

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Energy & Environmental Materials 2023年第4期6卷 58-69页

作者： Srinivas Gadipelli Hanieh Akbari Juntao li Christopher A.Howard Hong Zhang Paul R.Shearing Dan J.l.brett College of Physics Sichuan UniversityChengdu 610064China Electrochemical Innovation lab Department of Chemical EngineeringUniversity College LondonLondonWC1E 7JEUK Department of Physics and Astronomy University College LondonLondonWC1E 6BTUK

Supercapacitors formed from porous carbon and graphene-oxide(GO)materials are usually dominated by either electric double-layer capacitance,pseudo-capacitance,or *** to these combined features,reduced GO materials have been shown to offer superior capacitance over typical nanoporous carbon materials;however,there is a significant variation in reported values,ranging between 25 and 350 F g^(−1).This undermines the structure(e.g.,oxygen functionality and/or surface area)-performance relationships for optimization of cost and scalable *** work demonstrates important structure-controlled charge storage *** this,a series of exfoliated graphene(EG)derivatives are produced via thermal-shock exfoliation of GO precursors and following controlled graphitization of EG(GEG)generates materials with varied amounts of porosity,redox-active oxygen groups and graphitic *** results show significantly varied capacitance values between 30 and 250 F g^(−1)at 1.0 A g^(−1)in GEG structures;this suggests that for a given specific surface area the redox-active and hydrophilic oxygen content can boost the capacitance to 250–300%higher compared to typical mesoporous carbon *** with identical oxygen functionality show a surface area governed *** allows to establish direct structure-performance relationships between 1)redox-active oxygen functional concentration and capacitance and 2)surface area and capacitance.

关键词： electric double-layer capacitance graphene-oxide pseudocapacitance structure-performance relationships supercapacitors

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Scalable, Green Chain Transfer Agent for Cationic RAFT Polymerizations

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Chinese Journal of Chemistry 2023年第4期41卷 399-404页

作者： Scott W.Spring Chloe S.Cerione Jesse H.Hsu Shelby l.Shankel brett P.Fors Department of Chemistry and Chemical Biology Cornell UniversityIthacaNew York14853 United States

Cationic polymerizations of vinyl ethers have gained recent attention due to their ability to produce robust,biorenewable *** developments have been largely enabled by the advent of cationic reversible addition−fragmentation chain-transfer(RAFT)polymerization;however,the scalability and sustainability of this method are hindered by current chain-transfer agents(CTAs),which exist as viscous,colored oils requiring complex syntheses and solvent-intensive ***,we produce a solid,colorless CTA through a green synthetic route in 83%yield on a 50-gram *** investigate the utility of this CTA in chemical,electrochemical,photochemical,and acid-initiated methods,revealing that it achieves efficient polymerization with excellent control over molecular weight,low dispersity values,high chain end fidelity,and temporal control in cationic RAFT polymerizations.

关键词： Vinyl ethers CTA Cationic polymerization Green RAFT

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Hybrid Ni_(2)P/CoP Nanosheets as Efficient and Robust Electrocatalysts for Domestic Wastewater Splitting

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Energy & Environmental Materials 2023年第5期6卷 330-339页

作者： Yeshu Tan Jianrui Feng liqun Kang longxiang liu Fangjia Zhao Siyu Zhao Dan J.l.brett Paul R.Shearing Guanjie He Ivan P.Parkin Christopher Ingold laboratory Department of ChemistryUniversity College LondonLondon WC1H 0AJUK Materials and Catalysis laboratory Department of Chemical EngineeringUniversity College LondonLondon WC1E 7JEUK Electrochemical Innovation laboratory Department of Chemical EngineeringUniversity College LondonLondon WC1E 7JEUK School of Chemistry University of LincolnJoseph Banks LaboratoriesLincolnLN67DLUK

The development of low-cost,robust and efficient non-noble metal electrocatalysts is still a pursuit for the hydrogen evolution reaction(HER).Herein,a self-standing electrocatalyst,Ni_(2)P/CoP nanosheet,was fabricated directly on three-dimensional Ni foams by two facile steps,which illustrated both high activity and stability for HER in different *** from the porous structures of nanosheets with large specific surface area and the hybrid Ni_(2)P/CoP,the as-prepared electrocatalyst presented remarkable HER with overpotentials of 65.2 and 87.8 mV to reach a current density of-10 mA cm^(-2)in neutral and alkaline media,*** function theory calculations revealed a lower activation energy of water dissociation and efficient HER steps of hybrid Ni_(2)P/CoP nanosheets compared with mono *** self-standing electrocatalyst maintained excellent chemical ***,the HER process in domestic wastewater was realized with more impressive performance by using Ni_(2)P/CoP nanosheets compared with commercial Pt/*** was continuously generated for 20 h in mildly alkaline dishwashing *** work provides a feasible way to fabricate non-noble metal and self-standing hybrid bimetallic phosphides for HER in neutral and alkaline media,showing great potential for efficient hydrogen production by re-utilizing wastewater resources.

关键词： hybrid hydrogen evolution reaction Ni_(2)P/CoP nanosheet self-standing wastewater splitting

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Reversible lithium storage in sp^(2) hydrocarbon frameworks

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Journal of Energy Chemistry 2022年第3期31卷 161-167,I0006页

作者： Zhangxiang Hao Junrun Feng Yiyun liu liqun Kang Bolun Wang Junwen Gu lin Sheng Ruoyu Xu Sushila Marlow Dan J.l.brett Yunhui Huang Feng Ryan Wang Materials and Catalysis laboratory Department of Chemical EngineeringUniversity College LondonLondon WC1E 7JEUnited Kingdom School of Materials Science and Engineering Huazhong University of Science and TechnologyWuhan 430074HubeiChina Electrochemical Innovation lab Department of Chemical EngineeringUniversity College LondonLondon WC1E 7JEUnited Kingdom Department of Chemistry University College LondonLondon WC1H 0AJUnited Kingdom

Polymer materials offer controllable structure-dependent performances in separation,catalysis and drug *** molecular structures can be precisely tailored to accept li^(+)for energy storage *** the design of sp^(2)carbon-based polyphenylene(PPH)with high lithium-ion uptakes and long-term stability is ***-PPH(l-PPH)exceeds the performance of crosslink-PPH(C-PPH),due to the fact that it has an ordered lamellar structure,promoting the li^(+)intercalation/deintercalation *** l-PPH cell shows a clear charge and discharge plateau at 0.35 and 0.15 V ***^(+)/li,respectively,which is absent in the C-PPH *** li^(+)storage capacity of l-PPH is five times that of the *** reversible storage capacity is further improved to 261 m Ah g;by functionalizing the l-PPH with the–SO_(3)H *** addition,the li-intercalated structures of C-PPH and l-PPH are investigated via near-edge X-ray absorption fine structure(NEXAFS),suggesting the high reversible li^(+)–C=C bond interaction at *** strategy,based on new insight into sp^(2)functional groups,is the first step toward a molecular understanding of the structure storage-capacity relationship in sp^(2)carbon-based polymer.

关键词： lithium-ions battery Organic anode Topological structure sp^(2)hydrocarbon

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Battery state-of-charge estimation using machine learning analysis of ultrasonic signatures

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能源与人工智能(英文) 2022年第4期10卷 60-72页

作者： Elias Galiounas Tom G.Tranter Rhodri E.Owen James B.Robinson Paul R.Shearing Dan J.l.brett Electrochemical Innovation lab Department of Chemical EngineeringUniversity College LondonLondonWC1E 7JEUK The Faraday Institution Quad OneBecquerel AvenueHarwell CampusDidcotOX11 The Alan Turing Institute British Library96 Euston RoadLondon NW12DB

The potential of acoustic signatures to be used for State-of-Charge(SoC)estimation is demonstrated using artificial neural network regression *** approach represents a streamlined method of processing the entire acoustic waveform instead of performing manual,and often arbitrary,waveform peak *** applications where computational economy is prioritised,simple metrics of statistical significance are used to formally identify the most informative waveform *** alone can be exploited for SoC *** is further shown that signal portions representing both early and late interfacial reflections can correlate highly with the SoC and be of predictive value,challenging the more common peak selection methods which focus on the *** later echoes represent greater through-thickness coverage,and are intuitively more information-rich,their presence is not *** waveform treatment offers a more robust approach to correlating acoustic signatures to electrochemical *** is further demonstrated that transformation into the frequency domain can reduce the dimensionality of the problem significantly,while also improving the estimation *** importantly,it is shown that acoustic signatures can be used as sole model inputs to produce highly accurate SoC estimates,without any complementary voltage *** makes the method suitable for applications where redundancy and diversification of SoC estimation approaches is *** is obtained experimentally from a 210 mAh liCoO2/graphite pouch *** estimation errors as low as 0.75%are achieved on a SoC scale of 0-100%.

关键词： Battery diagnostics Ultrasonic battery monitoring Acoustic battery inspection Mechanical-electrochemical correlation Machine learning Artificial neural networks

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自组装杂原子掺杂碳纳米带作为超快充电锌离子混合超级电容器阴极

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Science China Materials 2022年第6期65卷 1495-1502页

作者：李钰莹黄佳佳亢立群田志红赖飞立 Dan J.l.brett 刘天西何冠杰 School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China Department of Chemical Engineering University College LondonLondon WC1E 7JEUK Engineering Research Center for Nanomaterials Henan UniversityKaifeng 475001China Department of Chemistry KU LeuvenCelestijnenlaan 200FLeuven 3001Belgium Key laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringInternational Joint Research Laboratory for Nano Energy CompositesJiangnan UniversityWuxi 214122China School of Chemistry University of LincolnJoseph Banks LaboratoriesGreen LaneLincolnLN67DLUK

锌离子混合超级电容器(ZHSs)由于其具有较高安全性,较低成本和超长寿命等优点,适合应用于大型储能设备.然而,目前阴极材料的倍率性能较差,严重阻碍了ZHSs的发展.基于此,本文设计合成了一系列自组装杂原子掺杂(B,N,O)碳纳米带CPTHB-Bx,作... 详细信息

锌离子混合超级电容器(ZHSs)由于其具有较高安全性,较低成本和超长寿命等优点,适合应用于大型储能设备.然而,目前阴极材料的倍率性能较差,严重阻碍了ZHSs的发展.基于此,本文设计合成了一系列自组装杂原子掺杂(B,N,O)碳纳米带CPTHB-Bx,作为ZHSs的阴极材料.杂原子掺杂可以显著改善碳骨架的化学特性,产生更多的活性位点,并加速电荷传输.除此之外,本文还证明了B–N基团是快速吸附和脱附锌离子的主要活性位点.以CPTHB-B2作为阴极的ZHSs表现出最优异的电化学性能,在0.5 A g^(−1)电流密度下,比电容高达415.3 F g^(−1),当电流密度从0.5增大到100 A g^(−1)时,比电容保留率高达81%,能量密度为131.9 W h kg^(−1),功率密度为42.1 kW kg^(−1).此研究为超快速锌离子存储材料提供了新的设计思路.

关键词： carbon nanoribbons self-assembled heteroatom doping ultrafast charging Zn-ion storage

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