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Acta geochimica 2021年第6期40卷 1023-1049页

作者： Bruna Saar de Almeida Mauro César geraldes Carlos Augusto sommer Felipe Corrales Antonio Joāo Paes de Barros Universidade do Estado do Rio de Janeiro Rio de JaneiroBrazil University of geneva GenevaSwitzerland Universidade Federal do Rio grande do Sul Rio Grande do SulBrazil METAMAT(Mato grosso State geological Survey) CuiabaBrazil

The volcanic rocks of the Colíder and Roosevelt formations are extensively exposed in the south-central portion of the Amazonian Craton where effusive and pyroclastic rocks have been *** units,topped by chemical sediments and oceanic facies as rhyolite and andesite lavas,rhyodacite,and porphyritic dacite,with frequent intercalations of pyroclastic and epiclastic ***-rock geochemistry for 55 samples of rhyolitic to andesitic composition suggests the involvement of fertile mantle-derived components with E-MORB to OIB *** analyzed rocks display calc-alkaline to shoshonitic affinity consistent with generation related to an active continental *** whole-rock Sm-Nd isotope data from selected felsic volcanic rocks of the Colíder and Roosevelt formations yield negative initial eNd values between–3 and–9,indicating the predominantly crustal nature of the parental magmas with early Archean to late Paleoproterozoic(ca.2.5–2.0 ga)depleted mantle model ages.

关键词： Amazonian craton geochemistry Sm-Nd isotopes Paleoproterozoic Volcanism

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Horizontal and vertical fluxes of particulate matter during wind erosion on arable land in the province La Pampa, Argentina

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International Journal of Sediment Research 2022年第5期37卷 539-552页

作者： Nicole Siegmund Roger Funk Michael sommer Fernando Avecilla Juan Esteban Panebianco Laura Antonela Iturri Daniel Eduardo Buschiazzo Leibniz Centre for Agricultural Landscape Research (ZALF) Working Group Landscape Pedology Institute of Environmental Science and geography University of Potsdam Institute of Earth and Environmental Sciences of La Pampa (INCITAP) 4. National University of La Pampa Faculty of Agronomy (UNLPam)

A detailed analysis of horizontal and vertical particulate matter(PM) fluxes during wind erosion has been done, based on measurements of PM smaller than 10, 2.5, and 1.0 μm, at windward and leeward positions on a measuring field. The three fractions of PM measurement are differently influenced by the increasing wind and shear velocities of the wind. The measured concentrations of the coarser fractions of the fine dust, PM10, and PM2.5, increase with wind and shear velocity, whereas the PM1.0concentrations show no clear correlation to the shear velocity. The share of PM2.5on PM10depends on the measurement height and wind speed and varies between 4 and 12 m/s at the 1 m height ranging from 25% to 7%(average 10%),and at the 4 m height from 39% to 23%(average 30%). Although general relationships between wind speed, PM concentration, and horizontal and vertical fluxes could be found, the contribution of the measuring field was very low, as balances of incoming and outgoing fluxes show. Consequently, the measured PM concentrations are determined from a variety of sources, such as traffic on unpaved roads,cattle drives, tillage operations, and wind erosion, and thus, represent all components of land use and landscape structure in the near and far surroundings of the measuring field. The current results may reflect factors from the landscape scale rather than the influence of field-related variables. The measuring devices used to monitor PM concentrations showed differences of up to 20%, which led to considerable deviations when determining total balances. Differences up to 67% between the calculated fluxes prove the necessity of a previous calibration of the devices used.

关键词： PM 10 , PM 2.5 , and PM 1.0 concentrations Field measurements Horizontal flux Vertical flux PM balances

Predator-induced changes of male and female mating preferences: innate and learned components

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Current Zoology 2019年第3期65卷 305-316页

作者： Martin PLATH Kai LIU Diane UMUTONI guilherme gOMES-SILVA Jie-Fei WEI Eric CYUBAHIRO Bo-Jian CHEN Carolin sommer-TREMBO Department of Basic and Applied Zoology College of Animal Science and Technology Northwest A&F University Yangling China Shaanxi Key Laboratory for Molecular Biology in Agriculture Northwest A&F University Yangling China Sino-Canadian Center for Environment & Sustainable Development Department of Geography ("Saude Ambiental") Universidade Federal de Uberlandia Minas Gerais Brazil College of Environmental Science and Engineering Tongji University Shanghai China Department of Environmental Sciences Institute of Zoology University of Basel Switzerland

While many mati ng pref ere nces have a genetic basis, the question remai ns as to whether and how learning/experience can modify individual mate choice decisions. We used wild-caught (predator-experienced) and Fi laboratory-reared (predator-naive) invasive Western mosquitofish gambusia affinis from China to test whether mating preferences (assessed in a first mate choice test) would change under immediate predation threat. The same individuals were tested in a second mate choice test during which 1 of 3 types of animated predators was presented: 1) a co-occurring predator, 2) a co-evolved but not currently co-occurring predator, and 3) a non-piscivorous species as control. We compared preference scores derived from both mate choice tests to separate innate from experiential effects of predation. We also asked whether predator-induced changes in mating preferences would differ betwee n sexes or depend on the choosing individual's personality type and/or body size. Wild-caught fish altered their mate choice decisions most when exposed to the co-occurring predator whereas laboratory-reared individuals responded most to the co-evolved predator, suggesting that both innate mechanisms and learning effects are involved. This behavior likely reduces individuals' risk of falling victim to predation by temporarily moving away from high-quality (i.e., conspicuous) mating partners. Accordingly, effects were stronger in bolder than shyer, large- compared with small-bodied, and female compared with male focal individuals, likely because those phenotypes face an increased predation risk overall. Our study adds to the growing body of literature appreciating the complexity of the mate choice process, where an array of intrinsic and extrinsic factors interacts during decision-making.

关键词： female choice male mate choice non-independent mate choice predator recognition sexual selection

In Vivo Function of Tic22, a Protein Import Component of the Intermembrane Space of Chloroplasts

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Molecular Plant 2013年第3期6卷 817-829页

作者： Mareike Rudolf Anu B. Machettira Lucia E. groβ Katrin L. Weber Kathrin Bolte Tihana Bionda Maik S. sommer Uwe g. Maier Andreas RM. Weber Enrico Schleiff Joanna Tripp Department of Biosciences Molecular Cell Biology of Plants Center of Membrane Proteomics and Cluster of Excellence Frankfurt Goethe University Max-von-Laue Str. 9 D-60438 Frankfurt Germany Institute of Plant Biochemistry Heinrich-Heine-University Universitatsstr. 1 D-40225 Dusseldorf Germany Cell Biology Philipps University Marburg Karl-von-Frisch-Str. 8 D-35032 Marburg Germany LOEWE Center for Synthetic Microbiology (SYNMIKRO) Hans-Meerwein-Str. D-35032 Marburg Germany

Preprotein import into chloroplasts depends on macromolecular machineries in the outer and inner chloroplast envelope membrane （TOC and TIC）. It was suggested that both machineries are interconnected by components of the intermembrane space （IMS）. That is, amongst others, Tic22, of which two closely related isoforms exist in Arabidopsis thaliana, namely atTic22-III and atTic22-IV. We investigated the function of Tic22 in vivo by analyzing T-DNA insertion lines of the corresponding genes. While the T-DNA insertion in the individual genes caused only slight defects, a double mutant of both isoforms showed retarded growth, a pale phenotype under high-light conditions, a reduced import rate, and a reduction in the photosynthetic performance of the plants. The latter is supported by changes in the metabolite content of mutant plants when compared to wild-type. Thus, our results support the notion that Tic22 is directly involved in chloroplast preprotein import and might point to a particular importance of Tic22 in chloroplast biogenesis at times of high import rates.

关键词： protein translocation TOC and TIC intermembrane space translocon chloroplast biogenesis metabolitecontent.

Mechanism of Work-hardening for Austenitic Manganese Steel under Non-severe Impact Loading Conditions

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Journal of Materials Science & Technology 1992年第6期8卷 406-410页

作者：谢敬佩姜启川何镇明 hun(罗全顺) K.sommer Luoyang Institute of Technology Luoyang471039China Stuttgart University Germany

The effect of C,Mn and heat-treatment on work-hardening of austenitic Mn steel and the work-hardening mechanism have been investigated under non-severe impact loading *** results show that the ability of work-hardening in- creases with the increase of C and aging tempera- ture but decreases with *** work-hardening with high austenitic stability results mainly from dislocations,and that with low austenitic stability results mainly from combined effects of strain-in- duced martensite and high density of dislocations under non-severe impact loading *** wear resistance of medium manganese steel (Mn7) is 1.64-2.46 times that of Hadfield steel (Mnl3).

关键词： austenitic manganese steel mechanism of work-hardening

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青光眼的早期诊断

眼科学报 1986年第2期2卷 87-89页

作者： Alfred sommer Dana Center for Preventive Ophthalmology Wilmer Ophthalmological Institute Johns Hopkins University U.S.A.

流行病学的研究已经表明仅凭单一的眼压诊断青光眼和着手进行青光眼治疗通常是根据不足的。仅仅具有眼压增高的患者,10年内只有5％有发生可确定的视野缺损的可能性。眼科医生也可寻找青光眼性或极有可能是青光眼性的视神经损害。不幸的... 详细信息

流行病学的研究已经表明仅凭单一的眼压诊断青光眼和着手进行青光眼治疗通常是根据不足的。仅仅具有眼压增高的患者,10年内只有5％有发生可确定的视野缺损的可能性。眼科医生也可寻找青光眼性或极有可能是青光眼性的视神经损害。不幸的是,到此时往往已有一半或一半以上的视神经可能已经毁损了。因此,眼科医生必须小心地权衡和调整自已密切追踪(青光眼)病人的决断力。对于一个是边远农村地区村民的患者和一个是发达城市的、很容易得到定期眼科随访和医疗的居民,医师因随访病人的难易而要小心权衡和修正自已的决定。在要进行青光眼治疗前,主要的单项标准或联合判断标准一般包括:1)眼压明显增高。眼压越高,视神经损害的危险性越大,如果眼压持续是35mmHg 或更高,则不管有无其他青光眼体征,应立即进行治疗;2)很大的视杯。特别是不对称视杯或视盘几乎没有什么神经—视网膜盘檐;3)两眼不对称的视杯,尤其是眼压较高的一眼其杯盘比又较大;4)用直接检眼镜或无赤光、高分辨率的眼底照相观察到的弥散性视网膜神经纤维层损害;5)当充分了解与认识了手动视野计和自动视野计各自的敏感性和特异性的关系,用手动视野计和自动视野计查出的典型视野缺损;6)照相等记录的视杯面积增加。本文将详细讨论上述标准的优点、缺陷、局限,同时也讨论了近来发表的有关视网膜神经纤维层分析的资料及解释自动阈值视野检查的选择法。

关键词：自动视野计不对称眼压青光眼视神经损害视网膜神经纤维层视杯眼科医生

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Marcel Breuer

Marcel Breuer

Corrigendum to“Antibiotic Treatment Drives the Diversification of the Human gut Resistome”[genomics Proteomics Bioinformatics 17(1)(2019)39-51]

作者： Arnt Cobbers translation Maureen Roycroft sommer Bergisch gladbach.

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genomics, Proteomics & Bioinformatics 2020年第5期18卷 624-625页

作者： Jun Li Elizabeth A.Rettedal Eric van der Helm Mostafa Ellabaan gianni Panagiotou Morten O.A.sommer Department of Infectious Diseases and Public Health Colleague of Veterinary Medicine and Life SciencesCity University of Hong KongHong Kong Special Administrative RegionChina School of Data Science City University of Hong KongHong Kong Special Administrative RegionChina Novo Nordisk Foundation Center for Biosustainability DK-2900 HørsholmDenmark Systems Biology and Bioinformatics Unit Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute07745 JenaGermany Systems Biology and Bioinformatics group School of Biological SciencesFaculty of SciencesThe University of Hong KongHong Kong Special Administrative RegionChina Department of Microbiology Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong Special Administrative RegionChina

The editors regret there was an error in“Shotgun metagenome library construction and sequencing”section.“The raw sequences can be found in BgID(CRA000815)”should be corrected to“The raw metagenome sequencing data have been deposited in the genome Sequence Archive at Beijing Institute of genomics,Chinese Academy of Sciences(gSA:CRA000815),and are publicly accessible at https://***/gsa/”.The correct section is shown *** editors would like to apologize for any inconvenience caused.

关键词： (1) Antibiotic genome

ADAM10 sheddase activation is controlled by cell membrane asymmetry

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Journal of Molecular Cell Biology 2019年第11期11卷 979-993页

作者： Florian Bleibaum Anselm sommer Martin Veit Bjorn Rabe Jorg Andra Karl Kunzelmann Christian Nehls Wilmar Correa Thomas gutsmann Joachim grotzinger Sucharit Bhakdi Karina Reiss Department of Dermatology University of Kiel24105 KielGermany Institute of Biochemistry University of KielOlshausenstraBe 4024098 KielGermany Hamburg University of Applied Science Ulmenliet 2021033 HamburgGermany Physiological Institute University of RegensburgUniversitatsstraBe 3193053 RegensburgGermany Forschungszentrum Borstel Leibniz-Zentrum fur Medizin und BiowissenschaftenParkallee 1023845 BorstelGermany

Dysregulation of the disintegrin-metalloproteinase ADAM10 may contribute to the development of diseases including tumorigenesis and Alzheimer's *** mechanisms underlying ADAM10 sheddase activation are incompletely ***,we show that transient exposure of the negatively charged phospholipid phosphatidylserine(PS)is necessarily *** soluble PS headgroup was found to act as competitive inhibitor of substrate *** of the Ca2+-dependent phospholipid scramblase Anoctamin-6(AN06)led to increased PS externalization and substrate *** with a constitutively active form of AN06 resulted in maximum sheddase activity in the absence of any ***-dependent ADAM10 activation could not be induced in lymphocytes of patients with Scott syndrome harbouring a missense mutation in AN06.A putative PS-binding motif was identified in the conserved stalk *** of this motif resulted in strong reduction of sheddase *** conjunction with the recently described 3D structure of the ADAM10 extracellular domain,a model is advanced to explain how surface-exposed PS triggers ADAM 10 sheddase function.

关键词： ADAM10 activation shedding Anoctamin-6 phosphatidylserine cell membrane asymmetry

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行动研究与绿色计划

建筑学报 2009年第7期 23-25页

作者： Robert sommer 刘宁美国加州大学戴维斯分校同济大学建筑与城市规划学院上海200092

介绍针对改善医院、学校及公共建筑等不同的建筑类型的研究,讨论行动研究、基础研究、应用研究这三种研究者与组织机构之间合作的例子,以促进负责任的环境实践。

关键词：行动研究基础研究应用研究

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