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Diversity of wing patterns and abdomen-generated substrate sounds in 3 European scorpionfly species

Insect Science 2015年第4期22卷 521-531页

作者： manfred Hartbauer Johannes Gepp Karin Hinteregger Stephan Koblmuller Institute of Zoology KarI-Franzens-University Graz Universitatsplatz 2 8010 Graz Institute for Nature Conservation Herdergasse 3 8010 Graz Austria

In the genus Panorpa （Insecta： Mecoptera）, also known as scorpionflies, pre- mating behavior includes repeated sequences of slow wing movements （waving, fanning, flagging） which are accompanied by rapid abdomen vibrations that generate substantial substrate-borne sound. It is still unknown whether wing patterns or vibratory signals contain information about species identity, sex and/or the quality of potential mating part- ners. Besides species-specific pheromones, these multimodal signals may be of particular importance for the maintenance of reproductive isolation in sympatrically occurring scor- pionfly species. Here, we analyzed phyologenetic relationships among, and the pattern of forewings as well as substrate-borne sound in 3 different sympatric Central-European scorpionfly species （P communis, P germanica, and P alpina）. Divergence time estimates, based on 879 bp of the mitochondrial COI gene, indicate longstanding separate evolu- tionary histories for the studied Panorpa species. Morphological analysis revealed that wing length as an indicator of body size increased in the following order： P alpina 〈 P. germanica 〈 P. communis. Individuals can be assigned to the correct species and sex with high accuracy just by evaluation of the number of dark spots and the proportion of wing pigmentation. Despite high variability of interpulse period at an individual level, across species analysis revealed a positive correlation of average interpulse period as well as mean signal amplitude with forewing length. These results suggest wing patterns, but less likely vibratory signals, to contain information about species identity. Furthermore, receivers may be able to estimate the body size of a signaler solely on the basis of substrate-borne sound.

关键词： courtship signals laser vibrometry phylogeny species recognition substrate-borne sound wing pattern

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Selective Suspension in Aqueous Sodium Dodecyl Sulfate According to Electronic Structure Type Allows Simple Separation of Metallic from Semiconducting Single-Walled Carbon Nanotubes

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Nano Research 2009年第8期2卷 599-606页

作者： Kai Moshammer Frank Hennrich manfred M.Kappes Forschungszentrum Karlsruhe Institut für NanotechnologieD-76021 KarlsruheGermany Institut für Physikalische Chemie Universität KarlsruheD-76128 KarlsruheGermany

Both density gradient centrifugation and gel electrophoresis have been reported to allow high throughput separation of metallic from semiconducting single-walled carbon nanotubes(SWNTs)when using aqueous sodium dodecyl sulphate(SDS)*** show here that both methods rely on an initial dispersion-by-sonication step,which is already selective with respect to electronic structure *** corresponding aqueous SDS“starting”suspensions obtained after sonication and purifi cation by simple centrifugation(70,000 g,1 h)contain semiconducting SWNTs primarily in the form of small bundles whereas metallic SWNTs are predominantly suspended as individual *** gradient centrifugation then separates the bundles from the individual tubes on the basis of differences in their overall buoyant *** electrophoresis separates the longer bundles from the shorter individual tubes on the basis of their different *** also demonstrate that such starting suspensions can be fractionated according to electronic structure type by even simpler techniques such as size exclusion chromatography or gel fi ltration,thus opening the way for simple scale-up.

关键词： Single-walled carbon nanotubes metallic–semiconducting separation electrophoresis density gradient centrifugation size exclusion chromatography

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Role of glycosylation in TGF-β signaling and epithelial-to-mesenchymal transition in cancer

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Protein & Cell 2021年第2期12卷 89-106页

作者： Jing Zhang Peter ten Dijke manfred Wuhrer Tao Zhang Oncode Institute and Cell Chemical Biology Leiden University Medical Center2300 RC LeidenThe Netherlands Center for Proteomics and Metabolomics Leiden University Medical CenterLeidenThe Netherlands

Glycosylation is a common posttranslational modification on membrane-associated and secreted proteins that is of pivotal importance for regulating cell *** glycosylation can lead to uncontrolled cell proliferation,cell-matrix interactions,migration and differentiation,and has been shown to be involved in cancer and other *** epithelial-to-mesenchymal transition is a key step in the metastatic process by which cancer cells gain the ability to invade tissues and extravasate into the *** cellular transformation process,which is associated by morphological change,loss of epithelial traits and gain of mesenchymal markers,is triggered by the secreted cytokine transforming growth factor-β(TGF-β).TGF-βbioactivity is carefully regulated,and its effects on cells are mediated by its receptors on the cell *** this review,we first provide a brief overview of major types of glycans,namely,N-glycans,O-glycans,glycosphingolipids and glycosaminoglycans that are involved in cancer ***,we summarize studies on how the glycosylation of TGF-βsignaling components regulates TGF-βsecretion,bioavailability and TGF-βreceptor ***,we review glycosylation changes associated with TGF-β-induced epithelial-to-mesenchymal transition in *** and understanding the mechanisms by which glycosylation affects TGF-βsignaling and downstream biological responses will facilitate the identification of glycans as biomarkers and enable novel therapeutic approaches.

关键词： cancer epithelial-to-mesenchymal transition glycosphingolipids N-glycosylation Oglycosylation transforming growth factor-β

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Monitoring dynamics of defects and single Fe atoms in N-functionalized few-layer graphene by in situ temperature programmed scanning transmission electron microscopy

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Journal of Energy Chemistry 2022年第1期31卷 520-530,I0014页

作者： Rosa Arrigo Takeo Sasaki June Callison Diego Gianolio manfred Erwin Schuster School of Science Engineering and EnvironmentUniversity of SalfordManchester M54WTUK Diamond Light Source Harwell Science and Innovation CampusDidcot 0X1/ODEUK JEOL UK Ltd.JEOL House 1-2 Silver CourtWatchmeadWelwyn Garden CityHerts AL71LTUK Department of Chemistry University College London20 Gordon StreetLondon WC1H OAJUK UK Catalysis Hub Research Complex at Harwell(RCaH)Rutherford Appleton LaboratoryHarwell Oxon 0X11 OFAUK Johnson Matthey Technology Centre Reading RG49NH.UK

In this study,we aim to contribute an understanding of the pathway of formation of Fe species during top-down synthesis of dispersed Fe on N-functionalized few layer graphene,widely used in *** use X-ray absorption spectroscopy to determine the electronic structure and coordination geometry of the Fe species and in situ high angle annular dark field scanning transmission electron microscopy combined with atomic resolved electron energy loss spectroscopy to localize these,identify their chemical configuration and monitor their dynamics during thermal *** show the high mobility of peripheral Fe atoms,first diffusing rapidly at the trims of the graphene layers and at temperatures as high as 573 K,diffusing from the edge planes towards in-plane locations of the graphene layers forming three-,four-coordinated metal sites and more complexes polynuclear Fe *** process occurs via bond C-C breaking which partially reduces the extension of the graphene ***,the vast majority of Fe is segregated as a metal *** dynamic interconversion depends on the structural details of the surrounding graphitic environment in which these are formed as well as the Fe loading.N species appear stabilizing isolated and polynuclear Fe species even at temperatures as high as 873 *** significance of our results lies on the fact that single Fe atoms in graphene are highly mobile and therefore a structural description of the electroactive sites as such is insufficient and more complex species might be more relevant,especially in the case of multielectron transfer *** we provide the experimental evidence of the formation of these polynuclear Fe-N sites and their structural characteristics.

关键词： HAADF-STEM Single Fe atom sites N-doped Few-layer graphene Dinuclear Fe species

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Parametric Influence on Thermal Performance of Flat Plate Closed Loop Pulsating Heat Pipes

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Journal of Donghua University(English Edition) 2006年第3期23卷 8-13页

作者：杨洪海 KHANDEKAR Sameer GROLL manfred College of Environmental Science and Engineering Donghua University Shanghai 201620 Institute of Nuclear Technology and Energy System University of Stuttgart 70569 Stuttgart Germany

This paper presents an experimental study on a flat plate closed loop pulsating heat pipes. It consisted of total 40 channels with square cross section （2 × 2 mm^2, 165 mm long） machined directly on an aluminum plate（180×120×3 nm^2）, which was covered by a transparent plate. The working fluid employed was ethanol. As the results, the influence parameters of thermal performance were investigated, such as filling ratio, heat load and operational orientations etc. Filling ratio was found to be a critical parameter, and its effect was rather complicated. According to its values the PHP plate could have four distinct working zones with different operational characteristics and heat transfer performance. The effect of heat load on thermal performance was found to be positive, and in general, iucrcasing the heat load would improve heat transfer performance. In order to analyze the effect of gravity on thermal performance, three different heat modes and total seven tilt angles were tested and compared. Successful operation at all orientations with respect to gravity was also achieved.

关键词： flat plate closed loop pulsating heat pipes parametric influences heat transfer characteristics.

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Histological remission of eosinophilic esophagitis under asthma therapy with IL-5 receptor monoclonal antibody:A case report

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World Journal of Clinical Cases 2022年第14期10卷 4502-4508页

作者： Marc Huguenot Anne-Catherine Bruhm manfred Essig Department of Gastroenterology and Internal Medicine Tiefenau HospitalBern 3004Switzerland

BACKGROUND Benralizumab is a monoclonal antibody targeting the IL-5 receptor used in the treatment of *** use of benralizumab in other conditions is only emerging and could represent a therapeutic option for other eosinophil-associated ***,we report the case of a patient suffering from eosinophilic esophagitis and asthma who achieved histological remission of eosinophilic esophagitis(EoE)under benralizumab treatment for his *** SUMMARY Our patient was a 56-year-old white male with a history of eosinophilic esophagitis and severe *** years of usual treatments,including topical steroids,biological treatment with mepolizumab,and standard asthma treatment,only poor control of both conditions was obtained.A control gastroscopy after the initiation of benralizumab showed complete histological remission of his *** Our case shows the effects of therapy with a novel agent not yet approved for this condition but for other diseases,with histological resolution of EoE after *** clinical remission was not observed,which exemplifies the complex nature of EoE,its associated psychosomatic burden,and the chronification of the ***,monoclonal antibodies targeting the Th2 response and,in our case,an IL5 receptor antagonist,achieved complete histological remission,which was not the case with an antibody against IL-5,which was also initiated to treat asthma.

关键词： Eosinophilic esophagitis Benralizumab,Eosinophilic asthma Case report

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Measures for Logistic Development at Hamburg Port

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上海海事大学学报 2004年第2期25卷 109-110页

作者： manfred Reuter Port of Hamburg

Ladies and Gentlemen,a trip to Shanghai is something very special for anyone from Hamburg and I am delighted to have received your invitation. Thank you very *** cities of Shanghai and Hamburg have long standing ties,... 详细信息

关键词： Measures for Logistic Development at Hamburg Port than

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Social and Ecological Constraints on Decision Making by Transhumant Pastoralists: A Case Study from the Moroccan Atlas Mountains

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Journal of Mountain Science 2012年第3期9卷 307-321页

作者： Zakia AKASBI Jens OLDELAND Jürgen DENGLER manfred FINCKH Biodiversity Evolution and Ecology of PlantsBiocentre Klein Flottbek and Botanical GardenUniversity of HamburgOhnhorststr.1822609 HamburgGermany Institut Agronomique et Vétérinaire Hassan II B.P.6202 les instituts10000-RabatMorocco

Transhumant pastoralism is an important activity in southern Morocco. Migration pattern of transhumant pastoralists can be affected by physical factors (e.g. droughts and diseases) or socioeconomic factors (e.g. schooling options for children and migration costs). We studied the spatio-temporal rangeland usage of the three tribes Ait Mgoun, Ait Zekri, and Ait Toumert in the south-central Atlas region with a two-fold approach. First, we tracked the migration movements of one representative transhumant herd using the Advanced Research and Global Observation Satellite (ARGOS) collars, which record coordinates from satellite signals. Second, we interviewed herders to obtain information about general grazing practices of the respective tribe and to gain more direct information on motivations underlying decisions. For each tribe we observed small-, medium- and large-scale movements. We found that the most important drivers of migration decisions were seasonal fodder availability and weather conditions in combination with herd-specific risk and cost assessment, as well as personal factors. In conclusion, general migration patterns vary in time, both between and within the tribes, but according to a regulatory framework. Moreover, it appears that both the customary rules and its flexible adaptation to physical constraints are generally beneficial in terms of conservation of the arid and semiarid rangeland resources.

关键词： Ait Mgoun Ait Zekri Ait Toumert ARGOS Goat grazing High Atlas Jebel Saghro Migration pattern Rangeland Small ruminant Transhumance

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Phosphorylated Salicylic Acid as Flame Retardant in Epoxy Resins and Composites

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Journal of Renewable Materials 2022年第7期10卷 1931-1950页

作者： Lara Greiner Philipp Kukla Sebastian Eibl manfred Döring Bundeswehr Research Institute for Materials Fuels and LubricantsErding85435Germany Fraunhofer Institute for Structural Durability and System Reliability LBF Darmstadt64289Germany Schill+Seilacher GmbH Böblingen71032Germany

A novel,versatile flame retardant substructure based on phosphorylated salicylic acid(SCP)is described and used in the synthesis of new flame retardants for HexFlowRTM6,a high-performance epoxy resin used in resin transfer molding processes as composite *** starting material salicylic acid can be obtained from natural *** as reactive phosphorus chloride is converted with a novolak,a novolak containing 9,10-dihydro-9-oxa-10-phospha-phenanthrene-10-oxide(DOPO)substituents or DOPO-hydroquinone to flame retardants with sufficient thermal stability and high char ***,these flame retardants are soluble in the resin as well as react into the epoxy *** determined thermal stability and glass transition temperatures of flame retarded neat resin samples as well as the interlaminar shear strength of corresponding carbon fiber reinforced composite materials showed the applicability of these flame *** resin samples and composites were tested for their flammability by UL94 and/or flame-retardant performance by cone *** tested flame retardants decrease the peak of heat release rate by up to 54%for neat resin samples.A combination of DOPO and SCP in one flame retardant shows synergistic effects in char formation and the mode of action adapts to neat resin or fiber-reinforced samples,so there is efficient flame retardancy in both ***,a tailoring of SCP based flame retardants is ***,these flame retardants efficiently reduce fiber degradation during combustion of carbon fiber-reinforced epoxy resins as observed by scanning electron microscopy and energy dispersive X-ray spectroscopy.

关键词： Epoxy resin composite fiber protection bio-based flame retardant

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A comparative data-fusion analysis of multi-sensor satellite images

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International Journal of Digital Earth 2014年第8期7卷 671-687页

作者： Saygin Abdikan Fusun Balik Sanli Filiz Sunar manfred Ehlers Geomatic Engineering Department Yildiz Technical UniversityIstanbulTurkey Geomatic Engineering Department Istanbul Technical UniversityIstanbulTurkey Institute for Geoinformatics and Remote Sensing University of OsnabruckOsnabruckGermany

Remote-sensing data play an important role in extracting information with the help of various sensors having different spectral,spatial and temporal ***,data fusion,which merges images of different spatial and spectral resolutions,plays an important role in information *** research investigates quality-assessment methods of multisensor(synthetic aperture radar[SAR]and optical)data *** the analysis,three SAR data-sets from different sensors(RADARSAT-1,ALOS-PALSAR and ENVISAT-ASAR)and optical data from SPOT-2 were *** the PALSAR and the RADARSAT-1 images have the same resolutions and polarisations,images are gathered in different frequencies(L and C bands,respectively).The ASAR sensor also has C-band radar,but with lower(25 m)*** the frequency is a key factor for penetration depth,it is thought that the use of different SAR data might give interesting results as an *** study describes a comparative study of multisensor fusion methods,namely the intensity-hue-saturation,Ehlers,and Brovey techniques,by using different statistical analysis techniques,namely the bias of mean,correlation coefficient,standard deviation difference and universal image quality index *** results reveal that Ehlers’method is superior to the others in terms of spectral and statistical fidelity.

关键词： image fusion SAR multisensor image processing accuracy

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