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Energieinformatik

H.-Jürgen Appelrath, Christoph Mayer, Ulrike Steffens
2012 Informatik-Spektrum  
Energieinformatik Das Energiesystem befindet sich weltweit in einem Transitionsprozess. Annähernd alle Volkswirtschaften steuern in ihrem Energiemix einen Ausbau erneuerbarer oder dezentraler Energieträger an. Man erhofft sich dadurch, dem drohenden Klimawandel entgegenzuwirken, die Abhängigkeit von Importen fossiler Energieträger zu reduzieren und -hauptsächlich in Entwicklungs-und Schwellenländern -Energie ohne die Installation einer weiträumigen Infrastruktur lokal erzeugen zu können. Schon
more » ... rüh wurde erkannt, dass dieser Wandel in der Erzeugerstruktur zahlreiche weitere Änderungen nach sich zieht. Besonders zwei Effekte sind hier ausschlaggebend: Dezentralität, also die Einspeisung von Strom auf den unteren Spannungsebenen, und Volatilität, also eine stochastische Einspeisung. Für die nun deutlich anspruchsvollere Aufgabe der Koordination von Erzeugung, Verbrauch, Verteilung und Transport wird in großem Umfang Informationstechnologie eingesetzt werden müssen. Zusätzlich sorgt die Marktliberalisierung, die den Endkunden in den Mittelpunkt rücken möchte, mit mehr Akteuren und erhöhtem Informationsaustausch für steigende Komplexität. Das IKT-gestützte Stromversorgungssystem bezeichnet man als Smart Grid. Dessen konkrete Ausgestaltung hängt hochgradig von den nationalen Märkten, regulatorischen Rahmenbedingungen und -oft regional geprägtentechnologischen Gegebenheiten ab. Ein Smart Grid zeichnet sich dadurch aus, dass wo sinnvoll alle Komponenten der Stromversorgung, also Erzeuger, Verbraucher, Betriebskomponenten des Stromnetzes und auch Speicher, kommunikativ verbunden sind, die jeweiligen Systemzustände in Realzeit abgerufen und die Komponenten, soweit sie steuerbar sind, über diese Kommunikation angesteuert werden können. Dies ermöglicht neue Geschäftsmodelle und erfordert neue Märkte, birgt aber auch das Risiko zu großer Komplexität und der Marktferne bei fehlerhafter Umsetzung. Die Informatik wird hier unverzichtbare Beiträge bei der Bewältigung kurzer Innovationszyklen, Beherrschung komplexer Infrastrukturen und endkundenorientierter Produkte leisten. Die junge Querschnittsdisziplin, die sich mit diesen Fragestellungen beschäftigt, heißt Energieinformatik. Sehr verschiedene Teildisziplinen leisten hier Beiträge: Informationssysteme, Agententechnologien, Softwaretechnik, Sicherheitsforschung, um nur einige zu nennen. Sowohl in der Wirtschaft als auch in der Wissenschaft sind die forschenden und entwickelnden Arbeitsgruppen jedoch häufig technologieorientiert aufgestellt. Um die Bildung einer Energieinformatik-Community aus Wissenschaft und Wirtschaft zunächst im deutschsprachigen Raum voranzubringen, wurde im Rahmen einer D-A-CH-Initiative unterstützt von den verantwortlichen Ministerien Deutschlands, Österreichs und der Schweiz eine Konferenzreihe ins Leben gerufen. Die erste dieser Konferenzen, die Energieinformatik 2012, fand am 5./6. Juli 2012 in Oldenburg mit etwa 90 Teilnehmern statt. In den in diesem Heft zusammengetragenen Konferenzbeiträgen wird das weite Themenspektrum der Energieinformatik sichtbar, das wir Ihnen als Informatikinteressierten nahebringen möchten. Die Beiträge reichen von der Untersuchung zukünftiger dezentraler Märkte über Fragestellungen der IKT-Integration dezentraler Anlagen bis zur Netzstabilitätssicherung. In einigen dieser Beiträge wird eine Besonderheit der Energieinformatik sichtbar: Aufgrund der besonderen Anforderungen an die Ausfallsicherheit des Stromversorgungssystems und der Echtzeitwechselwirkun-Informatik_Spektrum_36_1_2013 1 { EDITORIAL gen aller Erzeuger und Verbraucher untereinander haben Marktgeschehnisse in der Regel einen direkten Einfluss auf das physikalische Geschehen, während technische Randbedingungen die Freiheitsgrade des Marktes einschränken. Dieser Zusammenhang wird, wie viele der hier vorgestellten Beiträge darlegen, in einem zukünftigen Energiesystem nur mit neuen IKT-Systemen zu beherrschen sein. Wir wünschen Ihnen eine anregende Lektüre und interessante Einblicke in die Energieinformatik und möchten Sie an dieser Stelle schon einmal auf die Folgekonferenz Energieinformatik 2013 in Wien hinweisen, die vom 12. bis 14. November 2013 stattfinden und von der Österreichischen Computergesellschaft ausgerichtet werden wird. Die Vorstandsperspektive Der erweiterte Vorstand der GI zeichnet regelmäßig im Informatik-Spektrum für eine Kolumne verantwortlich, in der aktuelle Themen der Informatik zur Diskussion gestellt werden. Die Texte eröffnen Perspektiven auf aktuelle Fragen, die Informatiker und Informatikerinnen betreffen. Im vorliegenden Heft betrachtet Christof Leng den schmalen Grat zwischen militärischer und ziviler Forschung, der gerade in der Informatik oft sehr schwer zu bestimmen ist. Neben der militärischen Nutzung gibt es noch eine Reihe weiterer sensibler oder missbräuchlicher Einsatzmöglichkeiten von IT-Technologien, wie etwa in Diktaturen oder für kriminelle Zwecke. Das Schlagwort für dieses Problem lautet "Dual-Use Technologien". Dual-Use-Technologien Die dunkle Seite der Informatik Eine der schönsten Aufgaben, die ich in der GI wahrnehmen darf, ist die Mitarbeit an unserer Posterserie "Persönlichkeiten der Informatik". Im letzten Heft fanden Sie als krönenden Abschluss des ersten Jahres Konrad Zuse, und auch in diesem Jahr werden spannende Personen aus der Informatik folgen. Die Poster sind zwar keine "Informatik Hall of Fame" als die sie manchmal missverstanden werden, sondern eine Auswahl von interessanten Lebensläufen und Errungenschaften, die junge Menschen für unser Fach begeistern sollen, aber sie sollen auch einen Querschnitt über das Schaffen der Informatik darstellen. Ein Aspekt hat mich im Rückblick auf die ersten Poster nachdenklich gestimmt. Drei der sechs Persönlichkeiten, Turing, Hopper und Zuse, sind auf die eine oder andere Weise in militärische Projekte involviert gewesen, Grace Hopper sogar mit einer militärischen Karriere bis zum Rang eines Admirals. Das erscheint zunächst überraschend, lässt sich aber in vielen Bereichen der Informatik beobachten. Die Kryptografie zum Beispiel ist seit jeher ein militärisch hoch interessantes Thema. Auch die Entwicklung von immer leistungsfähigeren Supercomputern wurde zur Simulation von Atombombenexplosionen vorangetrieben. Selbst das heute allgegenwärtige Internet hat seine Wurzeln in einem militärischen Forschungsprojekt. Diese Liste ließe sich beliebig fortsetzen. Das unterscheidet uns wahrscheinlich nicht von anderen Disziplinen im MINT-Spektrum, ist aber -wie ich befürchte -vielen Informatikerinnen und Informatikern nicht wirklich bewusst. Ob und unter welchen Umständen eine militärische Forschung verwerflich ist, darüber lässt sich vortrefflich streiten. Diese Diskussion möchte ich an dieser Stelle nicht führen. Stattdessen möchte ich mich auf den schmalen Grat zwischen militärischer und ziviler Forschung konzentrieren, der gerade in der Informatik oft extrem schwer zu bestimmen ist. Neben der militärischen Nutzung gibt es noch eine Reihe weiterer sensibler oder missbräuchlicher Einsatzmöglichkeiten von IT-Technologien, wie z. B. in Diktaturen oder für kriminelle Zwecke. Das Schlagwort für dieses Problem lautet "Dual-Use Technologien". Viele IT-Produkte lassen sich gleichermaßen für militärische wie für zivile Zwecke nutzen, und genauso auch zum Aufbau einer freiheitlichen Gesellschaft oder zur Durchsetzung eines totalitären Systems. Dies zeigt sich deutlich bei Exportkontrollen: Während die USA lange Zeit den Export von Kryptografie -die heute unter anderem die Grundlage für den sichern elektronischen Geschäftsverkehr bildet -aus militärischen Gründen
doi:10.1007/s00287-012-0671-y fatcat:vyxcstnulfbxtm2lghuasan3jy

Decoupling Models and Visualisations for Practical EA Tooling [chapter]

Steffen Kruse, Jan Stefan Addicks, Matthias Postina, Ulrike Steffens
2010 Lecture Notes in Computer Science  
Rigorous modelling techniques and specialised analysis methods support enterprise architects when embarking on enterprise architecture management (EAM). Yet, while customised modelling solutions provide scalability, adaptability and flexibility they are often in conflict with generic or reusable visualisations. We present an approach to augment customised modelling with the techniques of model transformations and higher-order transformations to provide flexible and adaptable visualisations with
more » ... a minimum of requirements for the underlying enterprise models. We detail our approach with a proof-of-concept implementation and show how a decoupling can ease EAM approaches and provide appropriate tooling in practice.
doi:10.1007/978-3-642-16132-2_6 fatcat:brwgs5kdwzfr3pyyy2hber225i

Qualitative Field Study

Dana Abdel-Fatah, Steffen Schödwell, Jana Kiralj, Alakyaz Assadorian, Jason Tucker, Dean Ajduković, Ulrike Kluge
2021 Zenodo  
The FOCUS project is undertaking a range of research and piloting tasks which aim to improve understanding of dynamic integration and to assist the implementation of effective practices. As part of this work a detailed programme of qualitative research has been undertaken in four countries. This report presents the country-specific findings of this research, which will be further consolidated in a cross-site analysis to be completed in the coming months. The purpose of the qualitative research
more » ... ithin FOCUS is: "to provide a deeper understanding of the current sentiments and relations among and between members of the arriving and receiving communities; explore both opportunities for and barriers to integration from both perspectives as well as to generate hypotheses that guide future interventions for dynamic integration." The work was based on guidelines developed following an extensive review of the current state of research in this area and key knowledge gaps which require further exploration (consolidated in D3.1 Research design and methodology). Focus group discussions (FGDs) were held with members of the receiving communities and with members of the arriving communities in a total of 10 site in four countries which have different experiences of migration from Syria in recent years (Sweden, Germany, Jordan, Croatia). The FGDs were recorded and their transcripts were translated and analysed using Thematic Analysis. Several virtual coding workshops among the research partners ensured the development of a coding frame that captured and structured significant information at all sites. The core of this report involves the presentation of the findings for each of the four countries (Sections 4-7). Each of these sections is presented with a similar format while the analyses reflect the findings in those sites alone. As a background to these findings, Section 2 presents a brief introduction of the research questions and the sensitizing concepts, while Section 3 recaps of the methods of data collection and analysis. A [...]
doi:10.5281/zenodo.4697414 fatcat:6tainczkgzdvvhwxhkv26ljnoe

Gestaltlines

Ulrik Brandes, Bobo Nick, Brigitte Rockstroh, Astrid Steffen
2013 Computer graphics forum (Print)  
We gratefully acknowledge financial support from the Stiftung der Deutschen Wirtschaft (stipend to Astrid Steffen) and the University of Konstanz (grants FP 626/08 and FP 665/10).  ... 
doi:10.1111/cgf.12104 fatcat:xopumlvcebgnriw4mq37m23rna

Visual Navigation with Schematic Maps [chapter]

Steffen Bogen, Ulrik Brandes, Hendrik Ziezold
2009 Visual Information Communication  
A prototypical example of the operational dimensions of visual information communication is the use of schematic maps for visual navigation. The implementation of maps on location-sensitive or handheld devices has changed the preliminaries of common mapping techniques. By an analysis of selected examples, both historic and current, we want to open up the space for innovative map design options. Our approach blends art history and computer science, and is based on a systematic, operational
more » ... ctive. It may be unexpected, though, that it starts from the way that graphic design supports imaginative navigation on the map, rather than considering its utility for navigation in the physical space directly.
doi:10.1007/978-1-4419-0312-9_4 dblp:conf/vinci/BogenBZ09 fatcat:kq4n7tn2ffes5i2ewipakzdfje

Prunus trees in Germany—a hideout of unknown fungi?

Steffen Bien, Ulrike Damm
2020 Mycological progress  
Prunus belongs to the economically most important genera of fruit crops in Germany. Although wood pathogens possess the capability to damage the host substantially, the knowledge of the fungal pathogenic community and the mycobiome of Prunus wood in general is low. During a survey in important fruit production areas in Germany, branches with symptoms of fungal infection were sampled in Prunus avium, P. cerasus and P. domestica orchards, and 1018 fungal isolates were obtained primarily from the
more » ... ransition zone of symptomatic to non-symptomatic wood. By a combination of blastn searches and phylogenetic analyses based on ITS and LSU sequences with a strong focus on reliable reference data, a diversity of 172 fungal taxa belonging to Ascomycota, Basidiomycota and Mucoromycota were differentiated. The majority of the strains belonged to three classes of Ascomycota, namely Sordariomycetes, Leotiomycetes and Dothideomycetes. The dominant species were Aposphaeria corallinolutea (Dothideomycetes) and Pallidophorina paarla (Leotiomycetes) that were isolated more than a hundred times each, while all other taxa were isolated ≤ 30 times. Only part of them could be identified to species level. Because of the high plasticity of species boundaries, the identification certainty was divided into categories based on nucleotide differences to reference sequences. In total, 82 species were identified with high and 20 species with low (cf.) certainty. Moreover, about 70 species could not be assigned to a known species, which reveals Prunus wood to represent a habitat harbouring high numbers of potentially new species, even in a well-explored region like Germany. Mycological Progress Diaporthales Calosphaeriales Xylariaceae sp. 1 GLMC 1660 (1) Rosellinia sp. SO1_T24 L1A Rosellinia sp. SO1_T34_L4A Fungal sp. V-I7 Xylariaceae sp. 2 GLMC 1594 (1) Fungal sp. V-E9 Rosellinia aquila MUCL 51703 # Rosellinia australiensis CBS 142160 T Rosellinia mearnsii MFLU 16-1382 T Nemania diffusa GZ AT-F006 Nemania sp. 3 GLMC 1799 (4) Nemania diffusa FR AT-113 Nemania serpens BHI-F650a # Nemania sp. 1 GLMC 413 (4) Nemania serpens CBS 679.86 # Nemania sp. 2 GLMC 1515 (1) Xylaria longipes GLMC 1499 (5) Xylaria longipes CBS 347.37 Xylaria hypoxylon CBS 120.16 # Xylaria hypoxylon CBS 126417 # Anthostomella proteae CBS 110127 T Clypeosphaeria sp. GLMC 463 (1) Clypeosphaeria mamillana CBS 140735 T # Sordariomycetes sp. 11262 Sordariomycetes sp. 11280 Xylariaceae sp. 3 GLMC 848 (2) Anthostomella pinea CBS 128205 T Anthostomella cf. pinea GLMC 451 (2) Barrmaelia moravica CBS 142769 T Barrmaelia rhamnicola CBS 142772 T # Entosordaria perfidiosa CBS 142773 T # Entosordaria quercina CBS 142774 T Biscogniauxia marginata MFLUCC 12.0740 Biscogniauxia repanda ATCC 62606 Biscogniauxia nummularia GLMC 829 (3) Biscogniauxia nummularia MUCL 51395 T # Jackrogersella cf. cohaerens GLMC 652 (7) Jackrogersella cohaerens CBS 119126 Jackrogersella minutella CBS 336.70 Jackrogersella multiformis CBS 119016 T # Jackrogersella sp. GLMC 1516 (1) Annulohypoxylon truncatum CBS 140778 T # Hypoxylon fuscum CBS 113049 T Hypoxylon fuscum GLMC 1823 (1) Hypoxylon rubiginosum MUCL 52887 T Pyrenomyxa morganii CBS 118186 T Hypoxylon sp. 1 GLMC 1456 (15) Hypoxylon perforatum CBS 115281 Hypoxylon sp. 2 GLMC 1657 (2) Hypoxylon sp. 3 GLMC 1725 (1) Hypoxylon fragiforme MUCL 51264 T # Hypoxylon cf. fragiforme GLMC 1653 (5) Hypoxylon howeanum MUCL 47599 Hypoxylon howeanum GLMC 394 (5) Seimatosporium cornii MFLUCC 14-0467 T Seimatosporium sp. GLMC 1722 (10) Seimatosporium physocarpi CBS 139968 T Seimatosporium pistaciae CBS 138865 T Seimatosporium rosae CBS 139823 T Truncatella angustata CBS 144025 T # Truncatella angustata GLMC 253 (3) Truncatella hartigii CBS 118148 Lepteutypa sp. 1 GLMC 1319 (18) Lepteutypa sp. 2 GLMC 1557 (5) Lepteutypa uniseptata HKUCC 6349 Lepteutypa fuckelii CBS 140409 T Lepteutypa sambuci CBS 131707 T Arthrinium arundinis CBS 114316 Arthrinium arundinis CBS 124788 Arthrinium cf. arundinis GLMC 230 (1) Arthrinium malaysianum CBS 102053 T Arthrinium thailandicum MFLUCC 15-0202 T Eutypa lata CBS 208.87 T # Eutypa lata GLMC 427 (13) Eutypa petrakii var. hederae CBS 285.87 T Eutypa petrakii var. hederae GLMC 631 (1) Eutypa sp. GLMC 1758 (2) Eutypa petrakii var. petrakii CBS 244.87 Eutypa petrakii var. petrakii GLMC 1645 (6) Xylaria cubensis CBS 116.85 Eutypella virescens CBS 205.36 T Eutypella cf. spp. GLMC 625 (1) Eutypa tetragona CBS 284.87 Lopadostoma cf. turgidum A GLMC 757 (4) Lopadostoma cf. turgidum B GLMC 1768 (1) Lopadostoma turgidum CBS 133207 T # Lopadostoma dryophilum GLMC 1682 (9) Lopadostoma dryophilum CBS 133213 T Lopadostoma lechatii CBS 133694 T Ascotricha chartarum GLMC 453 (1) Ascotricha chartarum CBS 104.25 # Ascotricha lusitanica CBS 462.70 T Ascotricha pusilla CBS 132.60 Diaporthe cotoneastri CBS 439.82 T Diaporthe eres CBS 138594 T # Diaporthe cf. eres GLMC 532 (6) Diaporthe celeris CBS 143349 T Diaporthe sp. GLMC 309 (16) Diaporthe celastrina CBS 139.27 Diaporthe rudis CBS 113201 T Diaporthe rudis GLMC 1427 (7) Diaporthe mahothocarpus CGMCC 3.15181 T Diaporthe cf. mahothocarpus GLMC 260 (3) Leucostoma persoonii CBS 129.22 Leucostoma persoonii CBS 260.34 Leucostoma cf. spp. GLMC 1521 (28) Leucostoma cinctum CBS 254.34 Valseutypella multicollis CBS 105.89 T Valsaceae sp. GLMC 412 (17) Valsa sordida CBS 197.50 Valsa ambiens CBS 423.52 # Jattaea sp. 1 GLMC 503 (1) Jattaea taediosa MR 3669 T Jattaea discreta CBS 127681 T Jattaea sp. 2 GLMC 853 (4) Jattaea algeriensis STE-U 6201 # Calosphaeria pulchella CBS 115999 Calosphaeria pulchella GLMC 1629 (30) Calosphaeria africana CBS 120870 T Capnodiales Dothideales Botryosphaeriales Epicoccum layuense CGMCC 3.18362 T Epicoccum cf. spp. GLMC 369 (7) Epicoccum nigrum CBS 173.73 T # Epicoccum dendrobii CGMCC 3.18359 T Nothophoma cf. quercina GLMC 432 (18) Nothophoma quercina CBS 633.92 Nothophoma anigozanthi CBS 381.91 T Nothophoma infossa CBS 123395 T # Didymella macrostoma GLMC 1392 (8) Didymella macrostoma CBS 839.84 Didymella rumicicola CBS 683.79 T Didymella exigua CBS 183.55 T # Didymella heteroderae CBS 630.97 T Phoma laundoniae ICMP 10843 Phoma laundoniae GLMC 1459 (1) Coniothyrium ferrarisianum GLMC 380 (24) Coniothyrium ferrarisianum CBS 285.74 Sclerostagonospora cycadis CBS 123538 T Sclerostagonospora ericae CBS 141318 T Jeremyomyces labinae CBS 144617 T Jeremyomyces cf. labinae GLMC 327 (3) Alternaria conjuncta CBS 196.86 T Alternaria conjuncta GLMC 1338 (3) Alternaria arbusti CBS 596.93 T Alternaria rosae CBS 121341 T Alternaria rosae GLMC 636 (1) Alternaria angustiovoidea CBS 195.86 T Alternaria destruens ATCC 204363 T Alternaria destruens GLMC 1234 (24) Bipolaris drechsleri CBS 136207 T Bipolaris cf. spp. GLMC 248 (1) Bipolaris variabilis CBS 127716 T Bipolaris maydis CBS 136.29 T # Leptosphaeria sp. LQ122417 Leptosphaeria sp. LCC1-2 Pleosporales sp. GLMC 1316 (1) Leptosphaeria cichorium MFLUCC 14-1063 Leptosphaeria doliolum MFLU 15-1875 Leptosphaeria slovacica CBS 389.80 Neoleptosphaeria rubefaciens GLMC 337 (1) Neoleptosphaeria rubefaciens CBS 387.80 Neoleptosphaeria jonesii MFLUCC 16-1442 T Coniothyrium glycines CBS 124455 Coniothyrium dolichi CBS 124140 Coniothyrium telephii CBS 188.71 Parapyrenochaeta protearum GLMC 301 (2) Parapyrenochaeta protearum CBS 131315 T # Parapyrenochaeta acaciae CBS 141291 T Neocucurbitaria populi GLMC 348 (1) Neocucurbitaria populi CBS 142393 T Neocucurbitaria cava CBS 257.68 T Neocucurbitaria unguis-hominis CBS 378.92 # Kalmusia cf. ebuli GLMC 767 (4) Kalmusia ebuli CBS 123120 T # Paraconiothyrium fuscomaculans CBS 116.16 T Kalmusia longispora CBS 582.83 T Kalmusia variispora GLMC 1347 (4) Kalmusia variispora CBS 121517 T Paraphaeosphaeria neglecta GLMC 857 (2) Paraphaeosphaeria neglecta CBS 124078 T Paraphaeosphaeria michotii MFLUCC-13-0349 T # Paraconiothyrium brasiliense CBS 100299 T Paraconiothyrium archidendri CBS 168.77 T Paraconiothyrium estuarinum CBS 109850 T # Lentitheciaceae sp. GLMC 1563 (1) Sclerostagonospora cycadis CBS 291.76 Murilentithecium clematidis MFLUCC 14-0562 T # Murilentithecium rosae MFLUCC 15-0044 T Preussia flanaganii CBS 112.73 T Preussia funiculata CBS 659.74 # Preussia cf. spp. GLMC 1754 (1) Preussia persica CBS 117680 T Preussia persica GLMC 447 (2) Angustimassarina italica MFLUCC 15-0082 T Angustimassarina lonicerae MFLUCC 15-0087 T Angustimassarina populi MFLUCC 13-0034 T # Angustimassarina cf. spp. GLMC 891 (8) Aposphaeria corallinolutea CBS 131287 T Aposphaeria corallinolutea GLMC 1355 (138) Aposphaeria populina CBS 350.82 Roussoella euonymi GLMC 1544 (1) Roussoella euonymi CBS 143426 T Roussoella mukdahanensis MFLUCC 11-0201 T Roussoella nitidula MFLUCC 11-0634 # Constantinomyces sp. GLMC 1767 (1) Constantinomyces patonensis CBS 117950 T Constantinomyces oldenburgensis CBS 144642 T Constantinomyces virgultus CBS 117930 T # Devriesia shelburniensis (Devriesia s. str.) CBS 115876 Devriesia staurophora (Devriesia s. str.) CBS 375.81 # Devriesia pseudoamericana GLMC 819 (1) Devriesia pseudoamericana (Devriesia s. lat.) CBS 126270 T Devriesia americana (Devriesia s. lat.) CBS 117726 Cladosporium acalyphae CBS 125982 T Cladosporium needhamense CBS 143359 T Cladosporium cf. spp. 1 GLMC 1289 (10) Cladosporium xylophilum CBS 125997 T Cladosporium herbarum CBS 121621 T # Cladosporium macrocarpum CBS 121623 T Cladosporium cf. spp. 2 GLMC 711 (2) Cladosporium variabile CBS 121636 T Aureobasidium pullulans GLMC 1460 (15) Aureobasidium pullulans CBS 584.75 T # Aureobasidium melanogenum CBS 105.22 T Aureobasidium namibiae CBS 147.97 T Diplodia mutila GLMC 1759 (1) Diplodia mutila CBS 136014 T # Diplodia neojuniperi CPC 22753 T Diplodia seriata CBS 112555 T Diplodia seriata GLMC 1527 (1) Diplodia intermedia CBS 124462 T Penicillium resticulosum CBS 609.94 T Polyporales Russulales Agaricales Boletales Hymenochaetales Cantharellales Auriculariales Tremellomycetes Cystobasidiomycetes Pezizomycetes Lecanoromycetes Saccharomycetes Mucoromycota Ascomycota Agaricomycetes Basidiomycota Trametes versicolor GLMC 1717 (2) Trametes versicolor CBS 296.33 Trametes suaveolens CBS 279.28 # Trametes hirsuta GLMC 467 (1) Trametes hirsuta CBS 282.73 Coriolopsis gallica GLMC 1308 (1) Coriolopsis gallica CBS 429.34 Coriolopsis gallica CBS 428.34 Coriolopsis trogii RLG4286sp Mycoacia nothofagi CBS 125847 Mycoacia fuscoatra CBS 125883 # Mycoacia fuscoatra KHL13275 # Mycoacia fuscoatra GLMC 1268 (1) Mycoacia uda CBS 224.56 Geotrichopsis mycoparasitica CBS 687.93 T # Bjerkandera adusta CBS 371.52 # Bjerkandera cf. adusta GLMC 431 (5) Bjerkandera fumosa CBS 152.79 Peniophora cinerea CBS 261.37 Peniophora cinerea GLMC 947 (13) Peniophora pilatiana CBS 269.56 Peniophora quercina GLMC 1640 (2) Peniophora quercina CBS 409.50 # Peniophora simulans CBS 875.84 Heterobasidion annosum GLMC 1320 (1) Heterobasidion annosum CBS 567.67 # Heterobasidion annosum CBS 169.28 # Heterobasidion araucariae CBS 743.94 T Stereum armeniacum CBS 944.96 Stereum hirsutum CBS 930.70 # Stereum cf. spp. GLMC 475 (3) Stereum ostrea CBS 361.36 Coprinellus radians SZMC-NL-3986 Coprinellus xanthothrix SZMC-NL-3417 Coprinellus cf. spp. GLMC 737 (1) Coprinellus curtus SZMC-NL-1490 Coprinellus heptemerus SZMC-NL-2144 Coprinellus deliquescens Wat27209 # Coniophora puteana GLMC 420 (1) Coniophora puteana CBS 148.32 # Coniophora arida CBS 109.40 Coniophora merulioides CBS 152.35 aut Phellinus tuberculosus A GLMC 396 (4) Phellinus tuberculosus CBS 383.72 Phellinus tuberculosus B GLMC 1755 (3) Phellinus igniarius CBS 380.72 # Phellinus laevigatus CBS 256.30 Sistotrema eximum CBS 531.91 Sistotrema octosporum CBS 126038 Sistotrema hypogaeum CBS 393.63 Sistotrema brinkmannii CBS 402.54 Sistotrema sp. GLMC 1593 (2) Exidia glandulosa GLMC 374 (1) Exidia glandulosa CBS 126.24 # Exidia nigricans MW 313 Exidia thuretiana CBS 215.63 Udeniomyces sp. GLMC 1365 (1) Udeniomyces pyricola CBS 6754 T # Udeniomyces pseudopyricola CBS 10076 T Udeniomyces megalosporus CBS 7236 T Cystobasidium pinicola CBS 9130 T Cystobasidium pinicola GLMC 1603 (3) Cystobasidium laryngis CBS 2221 T Cystobasidium benthicum CBS 9124 T Trichophaeopsis bicuspis GLMC 1596 (1) Trichophaeopsis bicuspis NSW 8316 # Trichophaeopsis tetraspora C F-47525 Trichophaeopsis sp. DHP-AR-19 Trichophaeopsis sp. DHP-CH-58 Melastiza contorta KH 01.06 Pseudaleuria quinaultiana p712L Chaetothiersia vernalis BAP 492 T # Melastiza cornubiensis KH 03.43 Orbicula parietina CBS 238.32 Lecanoromycetes sp. GLMC 1733 (2) Uncultured Ascomycota agrFF142 Uncultured Ascomycota SMOTU80 Anthopsis catenata CBS 492.81 T Anthopsis deltoidea CBS 263.77 T # Cyanodermella oleoligni CBS 140345 T Umbilicaria esculenta A6 Nakazawaea ernobii CBS 1737 T Nakazawaea holstii CBS 4140 T # Nakazawaea cf. holstii GLMC 1309 (1) Nakazawaea populi CBS 7351 T Nakazawaea pomicola CBS 4242 T Wickerhamomyces silvicola CBS 1705 T Wickerhamomyces silvicola GLMC 1708 (1) Candida peoriensis CBS 8800 T Wickerhamomyces rabaulensis CBS 6797 T Wickerhamomyces canadensis CBS 5676 # Umbelopsis isabellina CBS 560.63 Umbelopsis isabellina GLMC 521 (5) Umbelopsis ovata CBS 499.82 T Umbelopsis versiformis CBS 150.81 T # Mucor bainieri CBS 293.63 T Mucor circinelloides f. lusitanicus CBS 108.17 T Ellisomyces anomalus CBS 243.57 T # Mucor sp. GLMC 656 (1) Mucor circinelloides GLMC 1405 (1) Mucor circinelloides f. circinelloides CBS 195.68 T Mucor hiemalis GLMC 1395 (1) Mucor hiemalis f. hiemalis CBS 201.65 Mucor mucedo CBS 640.67 T # Entomophthora sphaerosperma CBS 530.75
doi:10.1007/s11557-020-01586-4 fatcat:tx4p6hu3qbanjerx6lp3ggg4vi

Immunoproteasomes Preserve Protein Homeostasis upon Interferon-Induced Oxidative Stress

Ulrike Seifert, Lukasz P. Bialy, Frédéric Ebstein, Dawadschargal Bech-Otschir, Antje Voigt, Friederike Schröter, Timour Prozorovski, Nicole Lange, Janos Steffen, Melanie Rieger, Ulrike Kuckelkorn, Orhan Aktas (+2 others)
2010 Cell  
Interferon (IFN)-induced immunoproteasomes (i-proteasomes) have been associated with improved processing of major histocompatibility complex (MHC) class I antigens. Here, we show that i-proteasomes function to protect cell viability under conditions of IFN-induced oxidative stress. IFNs trigger the production of reactive oxygen species, which induce protein oxidation and the formation of nascent, oxidant-damaged proteins. We find that the ubiquitylation machinery is concomitantly upregulated in
more » ... response to IFNs, functioning to target defective ribosomal products (DRiPs) for degradation by i-proteasomes. i-proteasome-deficiency in cells and in murine inflammation models results in the formation of aggresome-like induced structures and increased sensitivity to apoptosis. Efficient clearance of these aggregates by the enhanced proteolytic activity of the i-proteasome is important for the preservation of cell viability upon IFN-induced oxidative stress. Our findings suggest that rather than having a specific role in the production of class I antigens, i-proteasomes increase the peptide supply for antigen presentation as part of a more general role in the maintenance of protein homeostasis.
doi:10.1016/j.cell.2010.07.036 pmid:20723761 fatcat:h6geevdunjbdljuzh5b5ks6yvi

Hexose Transporters of a Hemibiotrophic Plant Pathogen

Ulrike Lingner, Steffen Münch, Holger B. Deising, Norbert Sauer
2011 Journal of Biological Chemistry  
Plant pathogenic fungi use a wide range of different strategies to gain access to the carbon sources of their host plants. The hemibiotrophic maize pathogen Colletotrichum graminicola (teleomorph Glomerella graminicola) colonizes its host plants, and, after a short biotrophic phase, switches to destructive, necrotrophic development. Here we present the identification of five hexose transporter genes from C. graminicola, CgHXT1 to CgHXT5, the functional characterization of the encoded proteins,
more » ... nd detailed expression studies for these genes during vegetative and pathogenic development. Whereas CgHXT4 is expressed under all conditions analyzed, transcript abundances of CgHXT1 and CgHXT3 are transiently up-regulated during the biotrophic phase, and CgHXT2 and CgHXT5 are expressed exclusively during necrotrophic development. Analyses of the encoded proteins characterized CgHXT5 as a low-affinity/highcapacity hexose transporter with a narrow substrate specificity for glucose and mannose. In contrast, CgHXT1 to CgHXT3 are high affinity/low capacity transporters that also accept other substrates, including fructose, galactose, or xylose. CgHXT4, the largest of the identified proteins, has only little transport activity and may function as a sugar sensor. Phylogenetic studies revealed hexose transporters closely related to the five CgHXT proteins also in other pathogenic fungi suggesting conserved functions of these proteins during fungal pathogenesis.
doi:10.1074/jbc.m110.213678 pmid:21502323 pmcid:PMC3121522 fatcat:qs7fyvep2jaf3mv7p47fmgsdty

MACC1 is post-transcriptionally regulated by miR-218 in colorectal cancer

Katharina Ilm, Steffen Fuchs, Giridhar Mudduluru, Ulrike Stein
2016 OncoTarget  
Metastasis is a multistep molecular network process, which is lethal for more than 90% of the cancer patients. Understanding the regulatory functions of metastasisinducing molecules is in high demand for improved therapeutic cancer approaches. Thus, we studied the post-transcriptional regulation of the crucial carcinogenic and metastasis-mediating molecule metastasis associated in colon cancer 1 (MACC1). In silico analysis revealed MACC1 as a potential target of miR-218, a tumor suppressor
more » ... . Expression of these two molecules inversely correlated in colorectal cancer (CRC) cell lines. In a cohort of CRC patient tissues (n = 59), miR-218 is significantly downregulated and MACC1 is upregulated compared with normal mucosa. Luciferase reporter assays with a construct of the MACC1-3ʹ-UTR harboring either the wild type or the mutated miR-218 seed sequence confirmed the specificity of the targeting. miR-218 inhibited significantly MACC1 protein expression, and consistently, MACC1mediated migration, invasion and colony formation in CRC cells. Anti-miR-218 enhanced the MACC1-mediated migration, invasion and colony formation. Similar findings were observed in the gastric cancer cell line MKN-45. Further, we performed methylation-specific PCR of the SLIT2 and SLIT3 promoter, where miR-218 is encoded in intronic regions. The SLIT2 and SLIT3 promoters are hypermethylated in CRC cell lines. miR-218 and SLIT2 expressions correlated positively. Methyltransferase inhibitor 5-Azacytidine induced miR-218 expression and inhibited the expression of its target MACC1. We also determined that MACC1 has alternative polyadenylation (APA) sites, which results in different lengths of 3ʹ-UTR variants in a CRC cell line. Taken together, miR-218 is post-transcriptionally inhibiting the MACC1 expression and its metastasis-inducing abilities.
doi:10.18632/oncotarget.10803 pmid:27462788 pmcid:PMC5288198 fatcat:zqauswnwfngxhktzry3jyqopkq

How Autoantibodies Regulate Osteoclast Induced Bone Loss in Rheumatoid Arthritis

Ulrike Steffen, Georg Schett, Aline Bozec
2019 Frontiers in Immunology  
Copyright © 2019 Steffen, Schett and Bozec. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).  ... 
doi:10.3389/fimmu.2019.01483 pmid:31333647 pmcid:PMC6619397 fatcat:j6lu56jkazhidl3xytj7f4ovdy

Definition, Extraction, and Validation of Pore Structures in Porous Materials [chapter]

Ulrike Homberg, Daniel Baum, Alexander Wiebel, Steffen Prohaska, Hans-Christian Hege
2014 Mathematics and Visualization  
An intuitive and sparse representation of the void space of porous materials supports the efficient analysis and visualization of interesting qualitative and quantitative parameters of such materials. We introduce definitions of the elements of this void space, here called pore space, based on its distance function, and present methods to extract these elements using the extremal structures of the distance function. The presented methods are implemented by an image processing pipeline that
more » ... mines pore centers, pore paths and pore constrictions. These pore space elements build a graph that represents the topology of the pore space in a compact way. The representations we derive from µCT image data of realistic soil specimens enable the computation of many statistical parameters and, thus, provide a basis for further visual analysis and application-specific developments. We introduced parts of our pipeline in previous work. In this chapter, we present additional details and compare our results with the analytic computation of the pore space elements for a sphere packing in order to show the correctness of our graph computation.
doi:10.1007/978-3-319-04099-8_15 fatcat:jtys4cdlqvhs7cqlp57zgkbta4

Role mining with ORCA

Jürgen Schlegelmilch, Ulrike Steffens
2005 Proceedings of the tenth ACM symposium on Access control models and technologies - SACMAT '05  
With continuously growing numbers of applications, enterprises face the problem of efficiently managing the assignment of access permissions to their users. On the one hand, security demands a tight regime on permissions; on the other hand, users need permissions to perform their tasks. Rolebased access control (RBAC) has proven to be a solution to this problem but relies on a well-defined set of role definitions, a role concept for the enterprise in question. The definition of a role concept
more » ... ole engineering) is a difficult task traditionally performed via interviews and workshops. However, often users already have the permissions that they need to do their jobs, and roles can be derived from these permission assignments using data mining technology, thus giving the process of role concept definition a head-start. In this paper, we present the ORCA role mining tool and its algorithm. The algorithm performs a cluster analysis on permission assignments to build a hierarchy of permission clusters and presents the results to the user in graphical form. It allows the user to interactively add expert knowledge to guide the clustering algorithm. The tool provides valuable insights into the permission structures of an enterprise and delivers an initial role hierarchy for the definition of an enterprise role concept using a bottom-up approach.
doi:10.1145/1063979.1064008 dblp:conf/sacmat/SchlegelmilchS05 fatcat:awap4fhcurgyhkn5p3wc5x44jy

Identifying Anode and Cathode Contributions in Li-Ion Full-Cell Impedance Spectra

Marco Heinrich, Nicolas Wolff, Steffen Seitz, Ulrike Krewer
2022 Batteries  
Measured impedance spectra of Li-ion battery cells are often reproduced with equivalent circuits or physical models to determine losses due to charge transfer processes at the electrodes. The identified model parameters can usually not readily or unambiguously be assigned to the anode and the cathode. A new measurement method is presented that enables the assignment of features of impedance spectra of full cells to single electrodes. To this end, temperature gradients are imprinted
more » ... to the electrode layers of a single-layered Li-ion battery cell while impedance spectra are measured. The method exploits different dependences of the charge transfer processes at the electrodes on temperature. An equivalent circuit model of RC-elements and the effect of temperature on the related electrode properties is discussed to demonstrate the feasibility of the method. A reliable assignment of the change of impedance spectra to the electrode processes is shown to be possible. The assignment can be used to identify if changes in an impedance spectrum originate from the anode or the cathode.
doi:10.3390/batteries8050040 fatcat:yz6nd4o3lnh5xgqbg6hnqjq6cq

The hemibiotrophic lifestyle of Colletotrichum species

Steffen Münch, Ulrike Lingner, Daniela S. Floss, Nancy Ludwig, Norbert Sauer, Holger B. Deising
2008 Journal of plant physiology  
Colletotrichum species infect several economically important crop plants. To establish a compatible parasitic interaction, a specialized infection cell, the melanized appressorium, is differentiated on the cuticle of the host. After penetration, an infection vesicle and primary hyphae are formed. These structures do not kill the host cell and show some similarities with haustoria formed by powdery mildews and rust fungi. Therefore, this stage of infection is called biotrophic. Later in the
more » ... tion process, necrotrophic secondary hyphae spread within and kill the host tissue. The lifestyle of Colletotrichum species is called hemibiotrophic, as biotrophic and necrotrophic developmental stages are sequentially established. As most Colletotrichum species are accessible to molecular techniques, genes can be identified and functionally characterized. Here we demonstrate that Agrobacterium tumefaciens-mediated transformation is a well-suited method for tagging of genes mediating compatibility in the Colletotrichum graminicola-maize interaction.
doi:10.1016/j.jplph.2007.06.008 pmid:17765357 fatcat:qejc6xgy6fcg7l7lrhxsdh6bda

Three-dimensional friction measurement during hip simulation

Robert Sonntag, Steffen Braun, Loay Al-Salehi, Joern Reinders, Ulrike Mueller, J. Philippe Kretzer, John Leicester Williams
2017 PLoS ONE  
Objectives Wear of total hip replacements has been the focus of many studies. However, frictional effects, such as high loading on intramodular connections or the interface to the bone, as well as friction associated squeaking have recently increased interest about the amount of friction that is generated during daily activities. The aim of this study was thus to establish and validate a three-dimensional friction setup under standardized conditions. Materials and methods A standard hip
more » ... r was modified to allow for high precision measurements of small frictional effects in the hip during three-dimensional hip articulation. The setup was verified by an ideal hydrostatic bearing and validated with a static-load physical pendulum and an extension-flexion rotation with a dynamic load profile. Additionally, a pendulum model was proposed for screening measurement of frictional effects based on the damping behavior of the angular oscillation without the need for any force/moment transducer. Finally, threedimensional friction measurements have been realized for ceramic-on-polyethylene bearings of three different sizes (28, 36 and 40 mm). Results A precision of less than 0.2 Nm during three-dimensional friction measurements was reported, while increased frictional torque (resultant as well as taper torque) was measured for larger head diameters. These effects have been confirmed by simple pendulum tests and the theoretical model. A comparison with current literature about friction measurements is presented. Conclusions This investigation of friction is able to provide more information about a field that has been dominated by the reduction of wear. It should be considered in future pre-clinical testing protocols given by international organizations of standardization.
doi:10.1371/journal.pone.0184043 pmid:28886102 pmcid:PMC5590873 fatcat:fbpfxylrmjcwfnf7ygxjofzgb4
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