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Natural variation in social conditions affects male mate choosiness in the amphipod Gammarus roeselii

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Current Zoology 2022年第4期68卷 459-467页

作者： Konrad Lipkowski Sophie Steigerwald Lisa M Schulte Carolin Sommer-Trembo Jonas jourdan Department of Wildlife/Zoo-Animal-Biology and Systematics Institute for EcologyEvolution and Diversity Goethe University FrankfurtMaxvon-Laue-Straße 13Frankfurt am MainD-60438Germany Department of environmental Science Stockholm UniversitySvante Arrheniusväg 8StockholmSE-11418Sweden Zoological Institute University of BaselVesalgasse 1BaselCH-4051Switzerland Department of Aquatic ecotoxicology Institute for EcologyEvolution and DiversityGoethe University Frankfurt am MainFrankfurt am MainGermany

The extent of male mate choosiness is driven by a trade-off between various environmental factors associated with the costs of mate acquisition,quality assessment and opportunity *** knowledge about natural variation in male mate choosiness across different populations of the same species,however,remains *** this study,we compared male mate choosiness across 10 natural populations of the freshwater amphipod Gammarus roeselii(Gervais 1835),a species with overall high male mating investments,and evaluated the relative influence of population density and sex ratio(both affecting mate availability)on male mate *** investigated amplexus establishment after separating mating pairs and presenting focal males with a novel,size-matched female from the same *** analysis revealed considerable effects of sex ratio and(to a lesser extent)population density on time until amplexus establishment(choosiness).Male amphipods are able to perceive variable social conditions(e.g.,sex ratio)and modify their mating strategy accordingly:We found choosiness to be reduced in increasingly male-biased populations,whereas selectivity increases when sex ratio becomes female *** this,our study expands our limited knowledge on natural variations in male mate choosiness and illustrates the importance of sex ratio(i.e.,level of competition)for male mating decisions in natural *** for variation in sex ratios,therefore,allows envisioning a distinctive variation of choosiness in natural populations and highlights the importance of considering social background information in future behavioral studies.

关键词： amplexus Crustacea local adaptation mate choice population density sex ratio

Very-high-frequency probes for atomic force microscopy with silicon optomechanics

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Microsystems & Nanoengineering 2022年第2期8卷 35-48页

作者： L.Schwab P.e.Allain N.Mauran X.Dollat L.Mazenq D.Lagrange M.Gély S.Hentz G.jourdan I.Favero B.Legrand Laboratoire d'Analyse et d'Architecture des Systemes Universite de ToulouseCNRS UPR 800131031 ToulouseFrance Laboratoire Materiaux et Phenomenes Quantiques Universite de ParisCNRS UMR 716275013 ParisFrance Universite Grenoble Alpes CEALETIMinatec Campus38000 GrenobleFrance

Atomic force microscopy(AFM)has been consistently supporting nanosciences and nanotechnologies for over 30 years and is used in many fields from condensed matter physics to *** enables the measurement of very weak forces at the nanoscale,thus elucidating the interactions at play in fundamental ***,we leverage the combined benefits of micro/nanoelectromechanical systems and cavity optomechanics to fabricate a sensor for dynamic mode AFM at a frequency above 100 *** frequency is two decades above the fastest commercial AFM probes,suggesting an opportunity for measuring forces at timescales unexplored thus *** fabrication is achieved using very-large-scale integration technologies derived from photonic silicon *** probe's optomechanical ring cavity is coupled to a 1.55 pm laser light and features a 130 MHz mechanical resonance mode with a quality factor of 900 in air.A limit of detection in the displacement of 3×10^(-16)m/VHz is obtained,enabling the detection of the Brownian motion of the probe and paving the way for force sensing experiments in the dynamic mode with a working vibration amplitude in the picometer *** inserted in a custom AFM instrument embodiment,this optomechanical sensor demonstrates the capacity to perform force-distance measurements and to maintain a constant interaction strength between the tip and sample,an essential requirement for AFM *** indeed show a stable closed-loop operation with a setpoint of 4 nN/nm for an unprecedented subpicometer vibration amplitude,where the tip-sample interaction is mediated by a stretched water meniscus.

关键词： cavity maintain instrument

Probing the subcellular nanostructure of engineered human cardiomyocytes in 3D tissue

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Microsystems & Nanoengineering 2021年第1期7卷 133-140页

作者： Josh Javor jourdan K.ewoldt Paige e.Cloonan Anant Chopra Rebeccah J.Luu Guillaume Freychet Mikhail Zhernenkov Karl Ludwig Jonathan G.Seidman Christine e.Seidman Christopher S.Chen David J.Bishop Department of Mechanical engineering Boston UniversityBostonMA 02215USA Department of Biomedical engineering Boston UniversityBostonMA 02215USA SMI Beamline 12-ID Brookhaven National LaboratoryUptonNY 11973USA Department of Physics Boston UniversityBostonMA 02215USA Division of Materials Science Boston UniversityBostonMassachusetts 02215USA Department of Genetics Harvard Medical SchoolBostonMA 02215USA Department of electrical engineering Boston UniversityBostonMA 02215USA

The structural and functional maturation of human induced pluripotent stem cell-derived cardiomyocytes(hiPSC-CMs)is essential for pharmaceutical testing,disease modeling,and ultimately therapeutic *** 3D-tissue platforms have improved the functional maturation of hiPSC-CMs,but probing cardiac contractile properties in a 3D environment remains challenging,especially at depth and in live *** small-angle X-ray scattering(SAXS)imaging,we show that hiPSC-CMs matured and examined in a 3D environment exhibit a periodic spatial arrangement of the myofilament lattice,which has not been previously detected in *** contractile force is found to correlate with both the scattering intensity(R^(2)=0.44)and lattice spacing(R^(2)=0.46).The scattering intensity also correlates with lattice spacing(R^(2)=0.81),suggestive of lower noise in our structural measurement than in the functional ***,we observed decreased myofilament ordering in tissues with a myofilament mutation known to lead to hypertrophic cardiomyopathy(HCM).Our results highlight the progress of human cardiac tissue engineering and enable unprecedented study of structural maturation in hiPSC-CMs.

关键词： cardiac cardiomyocytes spacing

When will it end? Long-lived intracontinental reactivation in central Australia

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Geoscience Frontiers 2019年第1期10卷 149-164页

作者： Raphael Quentin de Gromard Christopher L.Kirkland Heather M.Howard Michael T.D.Wingate Fred jourdan Brent I.A.Mc Innes Martin Danisik Noreen J.evans Bradley J.McDonald R.Hugh Smithies Geological Survey of Western Australia Department of Mines Industry Regulation and Safety School of earth and Planetary Science/John de Laeter Centre/TIGeR Curtin University

The post-Mesoproterozoic tectonometamorphic history of the Musgrave Province, central Australia, has previously been solely attributed to intracontinental compressional deformation during the 580 -520 Ma Petermann Orogeny. However, our new structurally controlled multi-mineral geochronology results,from two north-trending transects, indicate protracted reactivation of the Australian continental interior over ca. 715 million years. The earliest events are identified in the hinterland of the orogen along the western transect. The first tectonothermal event, at ca. 715 Ma, is indicated by40 Ar/39 Ar muscovite and U e Pb titanite ages. Another previously unrecognised tectonometamorphic event is dated at ca. 630 Ma by Ue Pb analyses of metamorphic zircon rims. This event was followed by continuous cooling and exhumation of the hinterland and core of the orogen along numerous faults, including the Woodroffe Thrust,from ca. 625 Ma to 565 Ma as indicated by muscovite, biotite, and hornblende40 Ar/39 Ar cooling ages. We therefore propose that the Petermann Orogeny commenced as early as ca. 630 Ma. Along the eastern transect,40 Ar/39 Ar muscovite and zircon(Ue Th)/He data indicate exhumation of the foreland fold and thrust system to shallow crustal levels between ca. 550 Ma and 520 Ma, while the core of the orogen was undergoing exhumation to mid-crustal levels and cooling below 600-660℃. Subsequent cooling to 150 -220℃ of the core of the orogen occurred between ca. 480 Ma and 400 Ma(zircon [Ue Th]/He data)during reactivation of the Woodroffe Thrust, coincident with the 450 -300 Ma Alice Springs *** of the footwall of the Woodroffe Thrust to shallow depths occurred at ca. 200 Ma. More recent tectonic activity is also evident as on the 21 May, 2016(Sydney date), a magnitude 6.1 earthquake occurred, and the resolved focal mechanism indicates that compressive stress and exhumation along the Woodroffe Thrust is continuing to the present day. Overall, these results

关键词： Intracontinental deformation Thermochronology Petermann orogen Musgrave Province Plate tectonics Cratonization

华夏板块东南部中——新生代构造热事件的热年代学记录

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华夏板块东南部中——新生代构造热事件的热年代学记录

肺动脉高压中骨桥蛋白是衰老肺血管细胞表达的重要介质

2016中国地球科学联合学术年会

作者：陶霓 Zheng-Xiang Li Martin Dani?ík Noreen J.evans Geoffrey e.Batt 李武显厐崇进徐义刚 Fred jourdan 长安大学地球科学与资源学院澳大利亚科廷大学澳大利亚西澳大利亚大学中国科学院广州地球化学研究所桂林理工大学

以磷灰石、锆石(U-Th)/He分析为代表的低温热年代学已成为揭示区域岩石冷却历史、恢复构造抬升过程的重要方法。重建赣南-粤北地区中生代砂岩地层和花岗岩体的中—新生代剥露、冷却历史,对于进一步探索华夏板块东南部中—新生代的构造... 详细信息

以磷灰石、锆石(U-Th)/He分析为代表的低温热年代学已成为揭示区域岩石冷却历史、恢复构造抬升过程的重要方法。重建赣南-粤北地区中生代砂岩地层和花岗岩体的中—新生代剥露、冷却历史,对于进一步探索华夏板块东南部中—新生代的构造热演化过程具有重要意义。大席地区区域上位于华夏板块东南部,保存有较为完好的晚三叠纪到早侏罗纪砂岩地层,并内分布有三叠纪-侏罗纪花岗岩(Tao,2014)。沉积学和古地理记录表明,大席地区在中-新生代经历过较

关键词：热年代学磷灰石三叠纪冷却历史砂岩地层

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中华高血压杂志 2016年第9期24卷 862-862页

作者：刘莉叶鹏 Saker M Lipskaia L Marcos e Abid S Parpaleix A Houssaini A Validire P Girard P Noureddine H Boyer L Vienney N Amsellem V Marguerit L Maitre B Derumeaux G Dubois-Rande JL jourdan-Lesaux C Delcroix M Quarck R Adnot S

衰老的肺动脉平滑肌细胞（pulmonaryarterysmoothmusclecells，PA-SMC）可通过产生分泌因子促进肺高血压的发病。该研究的目的是探讨由衰老的PA-SMC释放的细胞外基质蛋白在肺高血压中的作用。方法：对正进行复制的衰老的人类PA-SMC进行... 详细信息

衰老的肺动脉平滑肌细胞（pulmonaryarterysmoothmusclecells，PA-SMC）可通过产生分泌因子促进肺高血压的发病。该研究的目的是探讨由衰老的PA-SMC释放的细胞外基质蛋白在肺高血压中的作用。方法：对正进行复制的衰老的人类PA-SMC进行聚合酶链反应阵列分析，发现骨桥蛋白上调，其介导了衰老PA-SMC介质和基质的刺激作用，以及对PA-SMC生长和迁移的作用。

关键词：骨桥蛋白肺血管肺动脉高压衰老细胞表达介质细胞外基质蛋白肺动脉平滑肌细胞

动脉间走行的冠状动脉异常病人CT血管成像的恶性解剖标准

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国际医学放射学杂志 2015年第3期 291-291页

作者： G.Ashrafpoor N.Danchin L.Houyel R.Ramadan e.Belli J.F.Paul 钟垚莹 Department of Radiology Institut Mutualiste Montsouris42 Boulevard Jourdan75014 Paris France

目的尝试确定动脉间走行的冠状动脉异常(ACAIAC)病人主要不良心脏事件(MACe)和冠状动脉CT成像(CCTA)评估的解剖标准之间的关系。材料与方法从一

关键词：冠状动脉异常 MACe 病人 CCTA CT