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Untersuchung eines breitbandigen Koaxial-Hohlleiterübergangs für einen Schottky-Strahldiagnosedetektor

CERN Document Server

Ehret, M; Wendt, M

In der vorliegenden Arbeit wurde ein Koaxial-Hohlleiterübergang im Mikrowellenbereich (4.8 GHz) untersucht und verbessert. Diese Kopplung ist eine der Schlüsselstellen des sogenannten „Schottky-Detektors“. Dieser Detektor befindet sich innerhalb des Teilchenbeschleunigers des Large Hadron Colliders am CERN. Während der Arbeit wurden verschiedene Untersuchungen am Detektor durchgeführt und anhand der ermittelten Ergebnisse eine veränderte Kopplerstruktur entwickelt. Diese Struktur wurde zuerst anhand von verschiedenen Modellen in einer elektromagnetischen Feldsimulation überprüft und mit Hilfe verschiedener Algorithmen verifiziert. Im nächsten Schritt wurde ein Testaufbau entwickelt, mit dem eine Überprüfung und eine abschließende Betrachtung der Ergebnisse möglich war. Es konnte gezeigt werden, dass mit der neu entwickelten Struktur die Kopplereigenschaften wesentlich verbessert und die Zielvorgaben sogar deutlich übertroffen wurden.
Percutaneous therapy of inoperable biliary stenoses and occlusions with a new self-expanding nitinol stent (SMART); Perkutane Therapie inoperabler maligner Stenosen und Verschluesse der Gallenwege mit einem neu entwickelten selbstexpandierbaren Nitinolstent (SMART)

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Zorger, N.; Lenhart, M.; Strotzer, M.; Paetzel, C.; Hamer, O.; Feuerbach, S.; Link, J. [Regensburg Univ. (Germany). Inst. fuer Roentgendiagnostik

2002-10-01

Objective: To evaluate the treatment of malignant biliary stenoses and occlusions using a new stent. Methods: In a prospective study, 25 patients with malignant obstructive jaundice were treated with SMART stents. The handling and the quality of stent expansion were documented. Stent function was assessed 2-4 days after intervention by cholangiography and laboratory tests. A follow-up was performed three months, after stent placement. Results: All lesions were treated successfully, with a total of 35 stents implanted. In 14 patients a further balloon dilatation was performed after stent placement (8-10 mm diameter/40-80 mm length). The mean serum bilirubin level decreased significantly from 11.6 mg/dl to 4.6 mg/dl after intervention (p<0.05). The follow-up showed a mean serum bilirubin level at 4.0 mg/dl. In 4 cases (16%) a further intervention (PTCD or stent) was performed. Six patients died due to tumor progression. The stents proved to be patent in 79% (n=15) of patients alive at the time of follow-up. Conclusions: Placement of the SMART stent for the therapy of malignant biliary lesions yields good technical and clinical results. (orig.) [German] Zielsetzung: Evaluation der technischen Handhabung und Effizienz eines neu entwickelten Stents zur Therapie maligner Gallenwegsstenosen und Verschluesse. Material und Methodik: In einer prospektiven Studie wurden 25 Patienten mit Verschlussikterus bei maligner Gallengangsstenose palliativ mit dem SMART {sup trademark} -Stent behandelt. Evaluiert wurden die Handhabung des Stents und die Qualitaet der Stententfaltung. Die Stentfunktion wurde nach 2-4 Tagen ueber eine liegende interne/externe Drainage cholangiographisch sowie anhand des Verlaufs der Laborparameter kontrolliert. Eine zusaetzliche Kontrolle der Stentfunktion erfolgte nach drei Monaten. Dabei wurden das subjektive Wohlbefinden des Patienten, der aktuelle Gesamtbilirubinspiegel im Serum und die Anzahl weiterer, im Nachsorgezeitraum durchgefuehrter
Ein kombinierter Operationsansatz zur Therapie der rektovaginalen Endometriose auf der Basis histologischer Befunde

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Köhler C

2008-01-01

Full Text Available Einleitung: Eine Endometriose des Septum rectovaginale kann oberflächlich dem Darm aufliegen oder die Darmwand infiltrieren. Durch bildgebende Verfahren kann jedoch präoperativ eine Infiltration des Darms weder hinreichend bestätigt noch ausgeschlossen werden, was zu einem therapeutischen Dilemma führt, da nur die Darmwand eindeutig infiltrierende Endometrioseprozesse durch eine Darmresektion behandelt werden sollten. Wir möchten ein neues Operationsverfahren vorstellen, das eine intraoperative Differenzierung zwischen einer oberflächlichen und einer infiltrativen Darmendometriose erlaubt. Patienten und Methodik: 70 Patientinnen mit rektovaginaler Endometriose wurden nach einem neu entwickelten kombinierten vaginal-laparoskopisch-abdominalen Verfahren operiert. Diese Operationsmethode wird Schritt für Schritt vorgestellt. Die Entscheidung zur Darmresektion wurde dabei allein aufgrund der intraoperativen Befunde und nicht aufgrund der präoperativen bildgebenden Diagnostik getroffen. Alle Resektate wurden standardisiert histologisch aufgearbeitet. Ergebnisse: Ob eine Darmresektion notwendig war, ließ sich intraoperativ anhand der Präparation des rektovaginalen Septums entscheiden. Daher wurden nur bei Patientinnen mit gesichertem infiltrativem Darmbefall Darmresektionen unter Erhalt des Mesointestinums durchgeführt. Weder intraoperative noch postoperative Komplikationen wie Anastomoseninsuffizienzen oder Restharnmengen traten auf. Diskussion: Die vorgestellte Operationsmethode zur Therapie der rektovaginalen Endometriose erlaubt eine exakte Diagnosestellung und präzise Therapieentscheidung bei minimaler Morbidität. Die Resektion des Darmschlauches ohne Mesoresektion ist ausreichend, da sich die Endometrioseknoten wie histologisch bewiesen wurde nur im ventralen Darmbereich befinden. Durch die Mesoerhaltung werden die vegetativen Funktionen des kleinen Beckens nicht beeinträchtigt.
IK-Veranstaltungen neu gestalten: Aufbau eines IK-Konzeptes an einer neu gegründeten Hochschule – Chancen, Möglichkeiten und Grenzen

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Guido Kippelt

2017-10-01

Full Text Available Veranstaltungen zur Informationskompetenz sind ein fester Bestandteil an wissenschaftlichen Bibliotheken und spielen eine wichtige Rolle für eine erfolgreiche Hochschulausbildung. Durch die Neugründung der staatlichen Hochschule Hamm-Lippstadt konnten in den dortigen Bibliotheken Informationskompetenz-Veranstaltungen grundlegend neu konzipiert und umgesetzt werden. Bei der Neugestaltung mussten unterschiedliche Kriterien zu Inhalten, Formaten, Zielgruppen etc. berücksichtigt werden. Hierbei spielten auch Überlegungen eine Rolle, wie Informationskompetenz an der HSHL definiert werden soll. Im vorliegenden Artikel werden die zu berücksichtigenden Kriterien für die Umsetzung von Informationskompetenz-Veranstaltungen an der HSHL erläutert. Des Weiteren wird ein Ausblick gewagt, wie diese Veranstaltungen weiter ausgebaut werden können. Lectures on information literacy are an important part of the work of a scientific library and are crucial for a successful university education. The founding of the state University of Applied Sciences Hamm-Lippstadt created the opportunity to develop a completely new series of information literacy lectures. During the creation of this lecture series, different criteria such as content, format, target groups and others had to be considered. It was also a part of this process to specify how the term information literacy should be defined for the University of Applied Sciences Hamm Lippstadt. This article discusses the criteria applied to the implementation and also gives an outlook on possible further developments.
Wässrige Nanosuspensionen zur pulmonalen Applikation

OpenAIRE

Scherließ, Holger

2008-01-01

Im Rahmen der vorliegenden Arbeit wurde die Entwicklung einer Nanosuspensionsformulierung zur inhalativen Anwendung mit dem schwerlöslichen Antimykotikum Itraconazol untersucht. Viele der neu entwickelten pharmazeutischen Wirkstoffe sind nach der Arzneibuchdefinition als schwerlöslich, sehr schwer löslich oder gar praktisch unlöslich einzuteilen. Das bedingt in der Praxis häufig Probleme in der Bioverfügbarkeit und stellt eine große Herausforderung für die Galenik dar. Die Herstellung der Nan...
Ein praxisorientierter empirischer Ansatz zur Bestimmung des Ausfallverhaltens konventioneller Bremssysteme in Personenkraftwagen

OpenAIRE

Althaus, Dirk

2009-01-01

Der Funktionsumfang im Kraftfahrzeug nimmt bekanntlich stetig zu. Neben vollständig neu entwickelten Systemen werden aber auch bestehende durch zusätzliche Funktionen erweitert. Besonders für Sicherheitssysteme kann dies weitreichende Folgen haben, da solche Mehrbelastungen nicht nur zur Minderung der Zuverlässigkeit beitragen können, sondern evtl. auch die Sicherheit herabsetzen. Durch die steigende Vernetzung der Systeme und Komponenten untereinander ist es darüber hinaus nicht mehr aus...
Analyse und Verbesserung der Simulationsmethode des Bremsenquietschens

OpenAIRE

Gräbner, Nils

2016-01-01

Bremsenquietschen ist ein Phänomen, bei dem das gesamte Bremssystem innerhalb des hörbaren Frequenzbereichs von 1 kHz – 16 kHz schwingt. Aus Sicht von Kunden stellt das Quietschen von Kfz-Bremsen einen erheblichen Qualitätsmangel dar und berechtigt unter bestimmten Voraussetzungen sogar zur Rückgabe des Fahrzeuges. Die Entwicklung geräuscharmer Bremsen ist im Allgemeinen keine triviale Aufgabe. Häufig kann das Quietschverhalten von neu entwickelten Kfz-Scheibenbremsen erst an Prototypen in au...
Publikationsservices im Dienstleistungsportfolio von Hochschulbibliotheken. Eine (Neu-Verortung in der wissenschaftlichen Publikationskette

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Ralf Depping

2014-12-01

Full Text Available Nahezu alle Hochschulbibliotheken haben inzwischen ihre klassische Grundaufgabe der Informations- und Literaturversorgung um Dienstleistungen rund um die Publikationstätigkeit der eigenen Hochschule erweitert. Hochschulschriftenserver sind seit langem Standard, andere Dienstleistungen wie Hochschulbibliographien, Universitätsverlage, Forschungsdatenmanagement und Bibliometrie sind hingegen noch nicht sehr verbreitet. Auffallend ist jedoch, dass die meisten Hochschulbibliotheken ihre Publikationsdienstleistungen weder als wichtiges Standbein im Dienstleistungsportfolio offensiv vermarkten noch als zusammengehöriges Dienstleistungspaket verstehen, in dem einzelne Bausteine aufeinander aufbauen können. Eine strategische (Neu-Verortung könnte wesentlich dazu beitragen, dass die Wissenschaftlerinnen und Wissenschaftler die Hochschulbibliothek (wieder als wichtige Dienstleistungseinrichtung wahrnehmen. Almost all university libraries have by now expanded their conventional field of activity – provision with literature and information – and provide a number of services in the context of the university's publication processes. Institutional repositories have become standard while other services such as university bibliographies, university presses, research data management and bibliometrics are less widespread. Nevertheless, it is remarkable that most university libraries neither actively market their publication services nor consider them an important portfolio in its own right, with complementary modules. A new strategic orientation could help to make scholars recognize the university libraries as important service providers (again.
Entwurf, Herstellung und Charakterisierung eines mikromechanischen Quecksilbersensors

OpenAIRE

Schambach, Kwan

2003-01-01

In dieser Arbeit wird ein neuartiger Quecksilbersensor vorgestellt, mit dem die Quecksilberkonzentration in der Umgebungsluft gemessen werden kann. Das Meßverfahren dieses Sensors basiert auf der Adsorption von elementarem Quecksilberdampf auf dünnen Goldschichten. Bei der Begasung der Goldschicht mit Quecksilberdampf bildet sich an der Goldoberfläche Goldamalgam. Dieser Vorgang hat eine Widerstandsänderung der Goldschicht zur Folge. Der Sensor ist in Silizium-Mikromechanik aufgebaut. Neu an ...
Medienkompetenz multiplizieren? Entwicklung eines Multiplikator/-innenkonzepts im Lehramtsstudium

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Antje Müller

2017-02-01

Full Text Available Zur Förderung von Medienkompetenz und medienpädagogischer Kompetenz in der universitären Lehramtsausbildung wurde an der Justus-Liebig-Universität Gießen ein Lehrprojekt initiiert, das an der aktuellen technologischen Ausstattung von deutschen Schulen ansetzt. Als Zugang wurde die Technologie der interaktiven Whitebords gewählt, um gegenwärtige Entwicklungen der Digitalisierung von Unterrichtsräumen zu thematisieren und dabei ausgewählte Aspekte von Medienkompetenz zu fördern. In dem Projekt haben verschiedene Einrichtungen der Universität und der Lehrerbildung kooperiert, um eine Multiplikator/-innenschulung für Studierende zu erarbeiten und zu etablieren. Es wurde eine 28-stündige Qualifizierungsreihe entwickelt, die sich aus modularisierten Workshops zur medientechnischen und -didaktischen Auseinandersetzung mit interaktiven Whiteboards, Elementen der Tutor/-innenausbildung sowie der Erarbeitung eines eigenen Unterrichtsentwurfes zusammensetzt. In dem Artikel werden die entwickelten Module vorgestellt und bewertet, inwieweit sie den von Herzig, Aßmann und Klar (2014 formulierten Zielvorstellungen zur Medienkompetenzförderung für das Lehramtsstudium entsprechen. Im Abgleich mit diesen Zielvorstellungen werden Entwicklungspotentiale des Konzepts identifiziert. Darüber hinaus fliessen Ergebnisse der praktischen Durchführung in Optimierungsvorschläge zur Steigerung der Nachhaltigkeit und Qualität der didaktischen Kompetenzen zum Einsatz von interaktiven Whiteboards in der Lehramtsausbildung – und darüber vermittelt im Schulunterricht – ein.
Lebenswelt Polizei. Ein ethnografischer Zugang zur Berufsidentität von Polizeibeamten

OpenAIRE

Behr, Rafael

2002-01-01

In meinem Beitrag stelle ich einige Besonderheiten und Probleme des Konzepts einer "ethnografischen Polizeiforschung" dar. Empirische Referenz ist eine ethnografische Untersuchung mehrerer Hessischer Polizeidienststellen im Jahr 1995. Die "teilnehmende Beobachtung des Gewaltmonopols" ist zwar nicht neu, nach wie vor aber in mehrfacher Hinsicht spannend, weil es sich um den Blick auf ein exklusives Gewaltverhältnis handelt, das zwar durch individuelle Akteure vollzogen wird, das aber strukture...
Medienethik: Werte neu denken. – Gibt es Massstäbe im Informationszeitalter?

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Claudia de Witt

2001-05-01

Full Text Available Im Übergang von der Informations- zur Wissensgesellschaft erweist sich die Frage nach pädagogischen Massstäben als besonders relevant. Zwar entstehen mit der Entwicklung zur Globalisierung durch die neuen Medien neue Handlungsmöglichkeiten, zugleich aber auch Pluralität und Unübersichtlichkeit bei den Wertorientierungen. Eine Auseinandersetzung mit medienethischen Fragen muss deshalb auf Überlegungen zielen, Werte neu zu denken. Die fogenden Beiträge sind auf dem Hintergrund der Frühjahrstagung der Kommission Medienpädagogik 2001 in Mainz entstanden. In Form von Thesen haben sich die Autoren aus unterschiedlichen Perspektiven mit den ethischen Herausforderungen durch die alten und neuen Medien auseinandergesetzt. Auf diesem Hintergrund ist ein facettenreicher Beitrag zur Medienethik entstanden.
Comparison of dignity determination of mammographic microcalcification with two systems for digital full-field mammography with different detector resolution. A retrospective clinical study; Vergleich der Dignitaetsbestimmung von mammographischem Mikrokalk mit zwei Systemen zur digitalen Vollfeldmammographie unterschiedlicher Detektoraufloesung. Eine retrospektive klinische Studie

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Schulz-Wendtland, R.; Adamietz, B.; Meier-Meitinger, M.; Wenkel, E.; Lell, M.; Anders, K.; Uder, M. [Universitaetsklinikum Erlangen, Abteilung Gynaekologische Radiologie, Radiologisches Institut, Erlangen (Germany); Hermann, K.P. [Universitaetsmedizin Goettingen, Abteilung Diagnostische Radiologie, Goettingen (Germany)

2011-02-15

Ziel dieser retrospektiven klinischen Studie war der Vergleich der diagnostischen Treffsicherheit eines neu entwickelten Detektors mit einer Aufloesung von 50 {mu}m (digitale Vollfeldmammographie, FFDM) mit einem herkoemmlichen Detektor mit einer Aufloesung von 70 {mu}m zur Differenzialdiagnose benigner und maligner Mikrokalzifikationen (BI-RADS trademark -Klassifikation 4/5; n=50) und Bestimmung der Spezifitaet des 50-{mu}m-Detektors. Von 03 bis 09/2009 untersuchten wir 50 Patientinnen mit der digitalen Vollfeldmammographie (FFDM; Detektoraufloesung 70 {mu}m; Novation, Siemens, Erlangen, Germany) und nach der Diagnosestellung ''suspekte Mikrokalzifikationen'' (klassifiziert mit BI-RADS trademark 4/5), sowie praeoperativer Drahtmarkierung mit digitaler Vollfeldmammographie (Detektoraufloesung 50 {mu}m; Amulet, FujiFilm, Tokyo, Japan) bei gleichen Aufnahmeparametern. Fuenf Untersucher mit unterschiedlicher Erfahrung in der mammographischen Diagnostik stellten retrospektiv nach der Operation anhand der zufallsverteilten Aufnahmen (Monitorbefundung, mediolaterale Ebene) die Diagnosen, die mit der endgueltigen Histologie korreliert wurden. Histopathologisch wurden 19 benigne und 31 maligne Laesionen bei den 50 Patientinnen postoperativ diagnostiziert. Die Ergebnisse der 5 Untersucher ergaben eine hoehere Sensitivitaet fuer das neue FFDM-System (80,0%) bei der Erkennbarkeit maligner Mikrokalzifikationen im Vergleich mit dem herkoemmlichen System (74,8%). Die Spezifitaet (75,8 vs. 71,6%) war ebenfalls geringfuegig hoeher fuer das neue System. Diese Ergebnisse waren jedoch nicht signifikant (p <0,001). Die diagnostische Treffsicherheit fuer das neue System (Detektoraufloesung 50 {mu}m) lag gleichfalls geringfuegig hoeher im Vergleich zum herkoemmlichen System (Detektoraufloesung 70 {mu}m; 80,1 vs. 76,4%). Die Ergebnisse zeigen mindestens eine Aequivalenz des neu entwickelten digitalen Vollfeldmammographiesystems im Vergleich zum herkoemmlichen FFDM
Philosophisch und theologisch denken (lernen. Fachdidaktische Skizzierungen zu einer ReligionslehrerInnenbildung NEU

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Philipp Klutz

2013-10-01

Full Text Available ENGLISH: It is an essential challenge for (religious teachers to initiate successful learning at school. How teachers act in their instruction is a key factor for successful learning at school. So teacher education has to focus on the process of professionalization of teachers. The faculty of Catholic Theology at the University of Vienna realigns the courses of subject didactic. According to the course ‘Philosophisch und theologisch denken’ this paper illustrates the students’ process of professionalization. The aim of this process is to form a ‘habitus’ in which religious education at schools and subject didactic (didactic of RE is visible under a theological approach. GERMAN: Wie gelingendes Lernen an der Schule initiiert werden kann, ist eine zentrale Herausforderung von (Religions LehrerInnen. Dabei kommt der Qualität des unterrichtlichen Handelns von Lehrpersonen eine entscheidende Rolle zu. In der Ausbildungsphase von ReligionslehrerInnen gilt es, sich dem Prozess der Professionalisierung zu widmen. An der Katholisch-Theologischen Fakultät der Universität Wien wird die fachdidaktische Lehre neu ausgerichtet, die sich so den Herausforderungen des Religionslehrberufs stellt. Anhand des fachdidaktischen Seminars ‚Philosophisch und theologisch denken‘ wird der Professionalisierungsprozess von Studierenden aufgezeigt. Durch diesen soll eine Haltung (Habitus ausgebildet werden, der eine theologisch begründete Sichtweise religiöser Bildung an der Schule und somit von Fachdidaktik (Religionsdidaktik sichtbar werden lässt.
Design, construction and experimental investigation of a Stirling refrigerator for freezing in supermarkets. Final report; Auslegung, Bau und experimentelle Untersuchung einer Stirling-Kaeltemaschine fuer die Tiefkuehlung in Supermaerkten. Schlussbericht

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Steimle, F.; Schikora, H.; Mai, M.; Siegel, A.

2000-10-01

Several theoretical investigations have shown that Stirling refrigerators could be a promising alternative for refrigeration at 'near-ambient' temperatures (above -40 C). These theoretical statements shall be validated in an actual research project by measurements taken from a Stirling refrigerator that is optimised for this range of temperature. In this paper first measurement results of this new developed Solo 161 Stirling refrigerator will be presented. Problems are investigated by detailed measurements. Possible improvements are described. (orig.) [German] Verschiedene theoretische Untersuchungen haben gezeigt, dass Stirling-Kaeltemaschinen eine interessante Alternative fuer die Kaelteerzeugung im sog. 'umgebungsnahen' Temperaturbereich (oberhalb von -40 C) darstellen koennten. In einem derzeit laufenden Forschungsvorhaben sollen diese theoretischen Untersuchungen durch Messungen an einer fuer diesen Temperaturbereich optimierten Stirling-Kaeltemaschine ueberprueft werden. In diesem Aufsatz werden erste Messergebnisse dieser neu entwickelten Solo 161 Stirling-Kaeltemaschine praesentiert. Anhand detaillierter Messergebnisse werden Schwachstellen lokalisiert und moegliche Verbesserungsmassnahmen beschrieben. (orig.)
Analysis of the flow in the exit of propfans; Analyse der raeumlichen Stroemung im Austritt eines Propfans

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Maass, M [Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V. (DLR), Koeln (Germany). Inst. fuer Antriebstechnik

1997-12-31

In this work the first rotor of a counterrotating shrouded propfan has been investigated to enable an overview of the complex rotor exit flow, basing on unsteady measurements. For this purpose the accuracy of the high speed probe technique has been improved. In combination with the 3D-Laser-2-Fokus system measurements were carried out in order to show the turbulent behaviour of the rotor exit flow. Though the turbulence models are presently not sufficiently developed, comparisons with results of numerical flow simulations support to interpret some wake details. A further focal point of this work is to determine the local losses for quantifying the isentropic efficiency and the pressure loss distribution. These investigations on the compressor`s exit flow can be used as a base for code validation and as design data for the next stage. (orig.). 95 figs., 2 tabs., 60 refs. [Deutsch] In dieser Arbeit wurde der erste Rotor eines gegenlaeufigen ummantelten Propfans experimentell untersucht. Damit soll ein Einblick in die komplexe Verdichtungsaustrittsstroemung ermoeglicht werden, basierend auf instationaeren Messungen im Nachlaufbereich. Hierzu wurde die Messgenauigkeit der instationaeren Totaldruckmesstechnik verbessert und zusammen mit dem 3D-Laser-2-Fokus-System im Verdichteraustritt angewendet. Mit diesen Messungen wird das turbulente Verhalten der Nachlaufstroemung aufgezeigt. Vergleiche mit Ergebnissen aus Rechnungen helfen trotz der derzeit noch nicht weit genug entwickelten Turbulenzmodelle, Stroemungsphaenomene im Nachlauf zu erklaeren. Ein weiterer Schwerpunkt der Arbeit liegt in der Bestimmung der lokalen Verlustleistung, um den lokalen Wirkungsgrad und damit die lokalen Verluste im Verdichteraustritt quantifizieren zu koennen. Diese Untersuchungen im Verdichteraustritt koennen als Datenbasis fuer Codevalidierung dienen und fuer die Auslegung als Eintrittsgroessen eines nachgeschalteten zweiten Rotors verwendet werden. (orig.)
New catalysts for photocatalytic cleaning of waste water; Neue Katalysatoren zur photokatalytischen Abwasserreinigung

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Lindner, M [Inst. for Solarenergieforschung GmbH, Hannover (Germany); Bahnemann, D [Inst. for Solarenergieforschung GmbH, Hannover (Germany); Hirthe, B [Sachtleben Chemie, Duisburg (Germany); Griebler, W D [Sachtleben Chemie, Duisburg (Germany)

1994-11-01

Cleaning of polluted ground and waste water meets with particular problems where the group of halogenated hydrocarbons is concerned, which are not, or not readily, to be biologically degraded by conventional techniques. As an alternative technique to waste water cleaning, a method known as photocatalysis was proposed some years ago, which removes the organic pollutants by oxidation at semiconductor particles exposed to a light source. The article reports on a newly developed photocatalyst with distinctly enhanced pollutant degradation efficiency. (orig./EF) [Deutsch] Besondere Schwierigkeiten bei der Reinigung verschmutzter Grund- und Abwaesser bereitet die Gruppe der halogenierten Kohlenwasserstoffe, die sich nicht oder nur schwer auf herkoemmliche Weise biologisch abbauen lassen. Als alternative Technik zur Abwasserreinigung wurde vor einigen Jahren die sogenannte Photokatalyse vorgeschlagen, bei der die organischen Schadstoffe durch Oxidation an belichteten Halbleiterteilchen entfernt werden. Nachfolgend wird ueber einen neu entwickelten Photokatalysator berichtet, mit dessen Hilfe eine deutliche Steigerung der Effektivitaet des photokatalytischen Schadstoffabbaus gelingt. (orig./EF)
Implementierung und Erprobung eines Lernziel-basierten Evaluationssystems im Studium der Humanmedizin [Piloting an outcome-based programme evaluation tool in undergraduate medical education

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Raupach, Tobias

2012-05-01

leistungsorientierten Mittelvergabe (LOM in der Lehre diskutiert. Die Umsetzung scheitert mitunter am Mangel valider Messkriterien zur Beurteilung der Lehrqualität. Neben der Struktur und den Prozessen der Lehre sollte das Ergebnis der Lehre im Mittelpunkt der Qualitätsbewertung stehen. Ziele dieser Arbeit waren die Erprobung eines neuen, lernzielbezogenen Evaluationssystems im klinischen Abschnitt des Studiums der Humanmedizin und der Vergleich der Ergebnisse mit den Daten eines traditionellen Evaluationsverfahrens.Methodik: Aus studentischen Selbsteinschätzungen zu Beginn und Ende eines jeden Lehrmoduls wurde nach einer neu entwickelten Formel der lernzielbezogene, prozentuale Lernerfolg berechnet. Die Lernerfolgs-Mittelwerte pro Modul wurden mit traditionellen Evaluationsparametern, insbesondere mit Globalbewertungen, ins Verhältnis gesetzt.Ergebnisse: Der mittels vergleichender Selbsteinschätzungen berechnete Lernerfolg und die Globalbewertungen produzierten deutlich unterschiedliche Rangfolgen der 21 klinischen Module. Zwischen dem Lernerfolg und den Globalbewertungen fand sich keine statistisch signifikante Korrelation. Allerdings korrelierten die Globalbewertungen stark mit den studentischen Erwartungen vor Modulbeginn und mit strukturellen und prozeduralen Parametern der Lehre (Pearson’s r zwischen 0,7 und 0,9. Schlussfolgerung: Die Messung des Lernzuwachses mittels vergleichender studentischer Selbsteinschätzungen kann die traditionelle Evaluation um eine wichtige Dimension erweitern. Im Unterschied zu studentischen Globalbewertungen ist das neue Instrument lernzielbezogen und unabhängiger vom Einfluss Konstrukt-irrelevanter Parameter. Hinsichtlich der Entwicklung eines LOM-Algorithmus eignet sich das neue Instrument gut zur Beurteilung der Lehrqualität.
Control and load management of a fuel cell based hybrid system; Steuerung und Lademanagement eines brennstoffzellen-basierten Hybridsystems

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Klausmann, Andreas

2011-07-01

. Emphasis is here mainly on the software structure. The introduction of a hardware abstraction layer (HAL) enables the implementation of portable control code and hardware-specific drivers without decreasing performance significantly or influencing real-time capabilities. (orig.) [German] Ziel dieser Arbeit ist die Erarbeitung der Steuerung eines hybriden elektrischen Antriebsstrangs. Ausgangspunkt ist ein elektrischer Antrieb, der von einem Akku gespeist wird. Dieser Akku soll waehrend des Betriebs mit einer Methanol-betriebenen Brennstoffzelle nachgeladen werden. Hier soll keine Direktmethanol-Brennstoffzelle zum Einsatz kommen, sondern eine Kombination aus Methanol-Reformer, der ein wasserstoffreiches Gas generiert, und einer Hochtemperatur-Brennstoffzelle (HTPEM-FC). Die Arbeit umfasst dabei die allgemeine Betriebsstrategie wie Ladezyklen, Standby-Phasen etc, die Steuerung des Reformers und den Betrieb der Brennstoffzelle in einem neu entwickelten Ladekonzept. Waehrend die Grundlagenentwicklung auf einem Rapid-Prototyping-System stattfindet, soll als Ziel der Arbeit die Steuerung auf ein Embedded-System uebertragen werden. Hierbei steht insbesondere die HW-Unabhaengigkeit der Steuerung im Vordergrund. Die Entwicklung der Reformer-Steuerung umfasst die Strategie zum Aufheizen des Systems mit minimalem elektrischen Energieverbrauch, da diese Energie im Start von der Batterie entnommen wird und daher grundsaetzlich als Restladung zur Verfuegung stehen muss. Im Gegensatz zu den ueblichen Systemen wird in diesem System der Reformer im Betrieb nach der Last moduliert und nicht umgekehrt. Dabei dient die Brennstoffzelle als Lastsensor. Die Steuerung der Brennstoffzelle beinhaltet neben An- und Abfahrstrategien insbesondere die Lastregelung. Dabei wird die Last als unbekannt, nicht beeinflussbar und unstetig angenommen. Die Ladeschaltung regelt die Ladung der Batterie unter bestmoeglicher Ausnutzung des zur Verfuegung stehenden Wasserstoffs und verhindert gleichzeitig eine
TALGO BT - a variable gauge diesel driving unit for TALGO trains; TALGO BT - ein Diesel-Triebkopf mit variabler Spurweite fuer TALGO-Zuege

Energy Technology Data Exchange (ETDEWEB)

Zander, C.P. [Siemens Krauss-Maffei Lokomotiven GmbH, Muenchen (Germany)

2000-03-01

An adjustable driving unit was developed for the variable gauge TALGO trains which have been in use for decades. The unit also has a novel type of carriage and a novel braking system. [German] Fuer die seit Jahrzehnten im Einsatz befindlichen, spurwechselfaehigen TALGO-Zuege wurde ein umspurbarer Triebkopf entwickelt. Dieses Fahrzeug ist in mehrfacher Hinsicht ohne Vorbild. Neu sind neben dem spurveraenderlichen Drehgestell die Fahrwerksanordnung und das Bremssystem. (orig.)

At least two Fc Neu5Gc residues of monoclonal antibodies are required for binding to anti-Neu5Gc antibody.

Science.gov (United States)

Yu, Chuanfei; Gao, Kai; Zhu, Lei; Wang, Wenbo; Wang, Lan; Zhang, Feng; Liu, Chunyu; Li, Meng; Wormald, Mark R; Rudd, Pauline M; Wang, Junzhi

2016-01-29

Two non-human glycan epitopes, galactose-α-1,3-galactose (α-gal) and Neu5Gc-α-2-6-galactose (Neu5Gc) have been shown to be antigenic when attached to Fab oligosaccharides of monoclonal antibodies (mAbs) , while α-gal attached to Fc glycans was not. However, the antigenicity of Neu5Gc on the Fc glycans remains unclear in the context that most mAbs carry only Fc glycans. After studying two clinical mAbs carrying significant amounts of Fc Neu5Gc, we show that their binding activity with anti-Neu5Gc antibody resided in a small subset of mAbs carrying two or more Fc Neu5Gc, while mAbs harboring only one Neu5Gc showed no reactivity. Since most Neu5Gc epitopes were distributed singly on the Fc of mAbs, our results suggest that the potential antigenicity of Fc Neu5Gc is low. Our study could be referenced in the process design and optimization of mAb production in murine myeloma cells and in the quality control of mAbs for industries and regulatory authorities.
Development of a dynamic short-term test method for installed thermal solar systems; Entwicklung eines dynamischen Kurzzeittestverfahrens fuer installierte thermische Solaranlagen

Energy Technology Data Exchange (ETDEWEB)

Beikircher, T.; Gut, M.; Kronthaler, P.; Oberdorf, C.; Schoelkopf, W. [Bayerisches Zentrum fuer Angewandte Energieforschung, Muenchen (Germany). Abt. Solarthermie und Biomasse

1998-12-31

A short-term test method for in-situ measurement of the collector field, pipelines and heat exchanger of large-surface solar systems was developed at ZAE Bayern, together with the necessary technical systems (mobile acquisition of meteorological data via telemetering, non-invasive surface temperature sensors and ultrasonic volume flow measuring instruments). Dynamic measurements were made for 11 days in a large-surface solar system of the ``Solarthermie 2000`` programme using the new measuring system. In order to optimize the evaluation procedure, the plant was simulated, and the influence of different models and operating conditions during the measurements on the prediction quality was investigated in detail. On this basis, it was possible to predict the long-term collector yield of the ZfS Hilden, which was measured for a period of 7 months, with an error of less than 5%. The method will be validated in two further industrial-scale systems. [Deutsch] Am ZAE Bayern wurde ein Kurzzeittestverfahren zur insitu-Vermessung des Kollektorkreises (Kollektorfeld, Rohrleitungen, Waermetauscher) grosser Solaranlagen entwickelt. Hierzu wurde eine der Aufgabenstellung angepasste Messtechnik entwickelt (Mobile meteorologische Datenerfassung mit Funkbetrieb, nicht-invasive Oberflaechen-Temperaturfuehler und Ultraschall-Volumenstrommessgeraete). Der Kollektorkreis einer grossen Solaranlage aus dem Programm Solarthermie 2000 wurde dynamisch ueber 11 Tage (29.10.-8.11.1997) mit der neuen Messtechnik vermessen. Zur Entwicklung eines geeigneten Auswerteverfahrens wurde die Anlage simulatorisch abgebildet und der Einfluss verschiedener Modellansaetze und der Betriebsbedingungen waehrend des Mess- und Vorhersagezeitraums auf die Vorhersageguete im Detail untersucht. Mit dem entwickelten Verfahren konnte aus der dynamischen Kurzzeitvermessung der in einer Langzeitmessung der ZfS Hilden ueber 7 Monate ermittelte Kollektorertrag nach dem solaren Waermetauscher auf deutlich besser als 5
Expression of Her-2/neu in extrahepatic cholangiocarcinoma

Directory of Open Access Journals (Sweden)

Shamekh R

2017-02-01

Full Text Available Rania Shamekh,1,* Marilin Rosa,2,* Zena Sayegh,2 Masoumeh Ghayouri,2 Richard Kim,3 Mokenge P Malafa,3 Domenico Coppola2 1Department of Pathology, University of South Florida, 2Department of Anatomic Pathology, 3Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA *These authors contributed equally to this work Background: Receptor tyrosine-protein kinase erbB-2, which is also frequently called human epidermal growth factor receptor-2 (Her-2 or Her-2/neu, has been found to be overexpressed in various human cancers.Hypothesis: The aim of this pilot study was to explore the frequency of Her-2/neu gene amplification and protein expression in extrahepatic cholangiocarcinoma (EHBC. We used the World Health Organization classification criteria for EHBC.Materials and methods: This was a retrospective study using 88 tissue samples, including 45 samples from non-neoplastic biliary tissue (NNB and 43 samples of extrahepatic cholangiocarcinoma (EHBC. A tissue microarray including NNB and EHBC was constructed and analyzed by immunohistochemistry (IHC and dual in situ hybridization for Her-2/neu protein expression and amplification, respectively. The Her-2/neu expression was scored following the guidelines used for the ToGA study.Results: All NNB samples and all but one EHBC samples showed no expression of Her-2/neu by IHC. The one EHBC case immunohistochemically positive for Her-2/neu had an IHC score of 3+. Her-2/neu gene amplification was present in two EHBC samples only and included the case found to be positive by IHC.Conclusion: Our findings are similar to those reported in the literature. Although Her-2/neu overexpression has been documented in many types of cancer, Her-2/neu protein overexpression tends to have no role in the development and/or progression of EHBC. Keywords: extrahepatic, cholangiocarcinoma, Her-2/neu, ToGA, immunohistochemistry
Silencing of the HER2/neu Gene by siRNA Inhibits Proliferation and Induces Apoptosis in HER2/neu-Overexpressing Breast Cancer Cells

Directory of Open Access Journals (Sweden)

Timo Faltus

2004-11-01

Full Text Available In eukaryotes, double-stranded (ds RNA induces sequence-specific inhibition of gene expression referred to as RNA interference (RNAi. We exploited RNAi to define the role of HER2/neu in the neoplastic proliferation of human breast cancer cells. We transfected SK-BR-3, BT-474, MCF-7, and MDA-MB-468 breast cancer cells with short interfering RNA (siRNA targeted against human HER2/neu and analyzed the specific inhibition of HER2/neu expression by Northern and Western blots. Transfection with HER2/neu-specific siRNA resulted in a sequence-specific decrease in HER2/neu mRNA and protein levels. Moreover, transfection with HER2/neu siRNA caused cell cycle arrest at G0/G1 in the breast cancer cell lines SKBR-3 and BT-474, consistent with a powerful RNA silencing effect. siRNA treatment resulted in an antiproliferative and apoptotic response in cells overexpressing HER2/neu, but had no influence in cells with almost no expression of HER2/neu proteins like MDA-MB-468 cells. These data indicate that HER2/neu function is essential for the proliferation of HER2/neuoverexpressing breast cancer cells. Our observations suggest that siRNA targeted against human HER2/neu may be valuable tools as anti proliferative agents that display activity against neoplastic cells at very low doses.
Rezension zu: Vera Cuntz-Leng: Harry Potter Que(er. Eine Filmsaga im Spannungsfeld von Queer-Reading, Slash-Fandom und Fantasyfilmgenre. Bielefeld: transcript Verlag 2015.

Directory of Open Access Journals (Sweden)

Marcus Felix

2016-12-01

Full Text Available Vera Cuntz-Leng brilliert mit einer queertheoretischen Untersuchung der Romanreihe um den Zauberlehrling Harry Potter und ihrer Verfilmung, die beide durch eine Form der Fanfiction, dem Slash, einer queeren Auswertung ausgesetzt sind. Mit der Verzahnung von queertheoretischer Relektüre und der Analyse queerer Fanpraxis gelingt es der Autorin herauszustellen, weshalb sich die Septalogie herausragender Beliebtheit bei queerer Harry-Potter-Fan-Art erfreut. Sie erweitert dadurch nicht nur den Blickwinkel auf das Phänomen Harry Potter, das durch das inflationäre Neu- und Weiterschreiben durch Fans ein Eigenleben entwickelt hat. Sie trägt damit auch zur Verwissenschaftlichung des Subgenres Fantasy bei und dem mangelnden Interesse der Queer Theory am popkulturellen Phänomen des Fandom Rechnung.
Environmental pollution: Measurable quantity or a problem of general risk acceptance?; Die stoffliche Belastung der Umwelt. Eine Systemgroesse oder eine Frage der allgemeinen Risikoakzeptanz?

Energy Technology Data Exchange (ETDEWEB)

Ballschmiter, K.

2001-08-01

Having different disciplines give different meanings to one same word is not unusual; using the word 'risk' in an environmental context has its specific importance. The classical definitions of 'risk' as the possibility of an adverse incident have been projected in the environmental and human health study areas. Risk-acceptance and risk-preference are general factors of the everyday life and even find a role in economics. However, their use as parameters in the field of environmental hazards should be avoided, or at least be defined as to their meaning. The environment is a complex system of mass fluxes and interdependencies that can be observed and described but not regulated in its global dimension. Technology assessment has here a specific task in defining precaution as the prevention of hazards as well as the 'repair in advance' of potential environmental risks of global dimensions. The globe as a whole and many of its parts cannot be subjected to 'end of the pipe' repair strategies. (orig.) [German] Das Phaenomen der unterschiedlichen Fuellung eines Begriffs in unterschiedlichen Disziplinen ist nicht neu; es wird aber besonders deutlich bei der Verwendung des Begriffes Risiko, wenn es um reale oder nur als moeglich angesehene Gefaehrdungen im Umweltbereich geht. Es werden die klassischen Definitionen eines Risikos, d.h. des moeglichen Eintritts eines Schadensereignisses, in ihrer Anwendung auf moegliche Schadensereignisse fuer Umwelt und Gesundheit gegenueber gestellt. Es wird die These vertreten, dass spezifische Formen der Risikoakzeptanz und Risikopraeferenz sehr wohl Faktoren der persoenlichen Lebensgestaltung sein koennen und auch in wirtschaftlichen Unternehmungen definierbare Groessen sind, dass sie aber fuer vom Menschen angestossene Veraenderungen in der Umwelt und hier insbesondere im Bereich der stofflichen Vorgaenge in den globalen Dimensionen nicht eingebracht werden koennen oder wenigstens eine sehr eigene
Rezension von: Mechthild Koreuber (Hg.: Geschlechterforschung in Mathematik und Informatik. Eine (interdisziplinäre Herausforderung. Baden-Baden: Nomos Verlag 2010.

Directory of Open Access Journals (Sweden)

Andrea Blunck

2010-05-01

Full Text Available Im vorliegenden Sammelband wird gezeigt, dass die Genderforschung zu Mathematik und Informatik vielfältige Beiträge leisten kann. Es werden Forschungsergebnisse präsentiert, die aus ganz unterschiedlichen (inter-disziplinären Perspektiven an das Thema herangehen. Dabei geht es nicht nur um Frauen (und Männer in Mathematik bzw. Informatik. Es wird z. B. auch eine mathematische Theorie, die Lehre von Gerade und Ungerade, aus feministischer Sicht neu interpretiert, indem sie mit der Weberei im antiken Griechenland in Verbindung gebracht wird.
Ein realer Lernort mit digitalem Mehrwert. Die Bibliothek der Universität Konstanz nach der Sanierung

Directory of Open Access Journals (Sweden)

Oliver Kohl-Frey

2014-12-01

Full Text Available Die Sanierung der Bibliothek der Universität Konstanz erforderte eine Überprüfung des bibliothekarischen Konzepts aus den sechziger Jahren, das in einem Gebäude der siebziger Jahre umgesetzt wurde. Insgesamt betrachtet bewährt sich das Konzept der Konstanzer Bibliothek bis heute, und es werden lediglich Anpassungen an die Bedürfnisse des 21. Jahrhunderts nötig. Durch aktive Pflege des gedruckten Bestands inklusive Aussonderung konnte Raum für die notwendige Ausweitung der Funktionen als Lernort und als sozialer Ort geschaffen werden. Das neu konzipierte Hybrid Bookshelf erlaubt eine neuartige Präsentation des digitalen Bestands am Ort Bibliothek. Durch die so angepasste Konzeption kann eine signifikante Aufwertung des realen Lernorts samt digitalem Mehrwert erreicht werden. The redevelopment process of the University of Konstanz Library required a proof of the sixties library concept that was realized within a seventies building. Generally the concept has proved itself; small adaptions have to be realized for the needs of the 21.century. The libraries functions as learning space and as social space are strengthened. Through the newly developed Hybrid Bookshelf the digital collection will be visible within the library space. That leads to a significant appreciation of the real learning space and a digital additional value.
At least two Fc Neu5Gc residues of monoclonal antibodies are required for binding to anti-Neu5Gc antibody

OpenAIRE

Yu, Chuanfei; Gao, Kai; Zhu, Lei; Wang, Wenbo; Wang, Lan; Zhang, Feng; Liu, Chunyu; Li, Meng; Wormald, Mark R.; Rudd, Pauline M.; Wang, Junzhi

2016-01-01

Two non-human glycan epitopes, galactose-Į-1,3-galactose (Į-gal) and Neu5Gc-Į-2-6-galactose (Neu5Gc) have been shown to be antigenic when attached to Fab oligosaccharides of monoclonal antibodies (mAbs) , while Į-gal attached to Fc glycans were not. However, the antigenicity of Neu5Gc on the Fc glycans remains unclear in the context that most mAbs carry only Fc glycans. After studying two clinical mAbs carrying significant amounts of Fc Neu5Gc, we show that their binding activity with anti-Ne...
HER 2/neu protein expression in colorectal cancer

International Nuclear Information System (INIS)

Schuell, B; Gruenberger, T; Scheithauer, W; Zielinski, Ch; Wrba, F

2006-01-01

Conflicting data exist about the prevalence of HER-2/neu overexpression in colorectal cancer ranging from 0 to 83 %. In our study we tried to clarify the extent of expression and its relationship to clinicopathological parameters. This study involved 77 specimens of malignant colorectal cancer lesions of surgically resected patients. HER-2/neu immunohistochemistry was performed using the Hercep-Test Kit. Out of 77 specimens, 56 were Her-2/neu negative (70%), 20 (26%) showed a barely immunostaining (1+), only 1 (1%) was moderately (2+) and 2 (3%) were strongly positive (3+). Her-2/neu staining (moderately and strongly positive) was only detected in primary tumours of patients with confirmed metastases. No relationship was found between membranous HER-2 expression and patients' gender or differentiation. The median survival time of patients with positive HER-2/neu immunostaining was 21 versus 39 months in patients without HER-2/neu expression (p = 0.088). The c-erbB protein expression was observed in colorectal cancer but rarely in the therapeutic range (2+ and 3+). There was no significant association with tumour grade, gender, localization of the primary tumour or survival. These data indicate that c-erbB-2 is unlikely to play a major role in the therapeutic management of colorectal cancer
ETA-BEMS - Development of testing procedures for inspection of building energy management systems; ETA-BEMS - Entwicklung von Testprozeduren zur Abnahme von Building-Energy-Management-Systemen. Endbericht

Energy Technology Data Exchange (ETDEWEB)

Bach, H.; Grob, R.F.

2000-07-01

Based on the investigations of project VITE-BEMS, a computer-assisted method for commissioning and acceptance testing of complex digital building control systems is presented. Tests are classified as either open-loop or closed-loop tests. A test stand was constructed in which the control systems to be tested were connected to a building and facility simulation system in order to model the behaviour of the real facility for which the control system is intended. The models were adapted and optimized with a view to simplicity and easy convertibility. [German] Aufbauend auf dem bereits bestehenden Lebenszyklusansatz fuer die Simulation und den Arbeiten, die im Projekt VITE-BEMS /6/ durchgefuehrt wurden, wird eine computergestuetzte Vorgehensweise fuer die Inbetriebnahme und die Abnahme von komplexen digitalen Regelsystemen im Bereich der Gebaeude- und RLT-Technik vorgestellt. Nach einer kritischen Betrachtung der Abnahmeprozesse in der gaengigen Praxis, werden hierfuer zunaechst Testprozeduren entwickelt. Diese Testprozeduren fuer die Inbetriebnahme und Abnahme von digitalen Regelungssysteme koennen unterteilt werden in Tests, bei denen das jeweilige Regelungssystem mit einer virtuellen heiz- und raumlufttechnischen Anlage in Wechselwirkung steht (Closed-Loop-Tests) und solchen, bei denen Regelfunktionen ohne eine direkte Rueckkopplung zur zu regelnden Anlage ueberprueft werden (Open-Loop-Tests). Durch diese unterschiedlichen Prozeduren wird eine systematische Ueberpruefung der Regelfunktionen, die vom Planer der jeweiligen Anlage spezifiziert und gefordert werden, ermoeglicht. Entsprechend den Anforderungen dieser Testprozeduren wird auf einem ebenfalls neu entwickelten Emulationsversuchsstand eine virtuelle Testumgebung aufgebaut, auf der die Prozeduren an den zu testenden Regelgeraeten ablaufen. In dieser Testumgebung wird das zu pruefende Regelungssystem an eine Anlagen- und Gebaeudesimulation angeschlossen. Mit der Simulation wird das Verhalten der realen Anlage
Study of HER2/neu status in Qatari women with breast carcinoma

International Nuclear Information System (INIS)

Rasul, Kaki I.; Abdalla, Awidi S.; Mohammed, Kelta; Ahmad, Mubarak A.; Al-Homsi, Mohammed U.; Al-Hassan, Asma M.; Al-Alosi, Ahmad S.; Bener, A.

2003-01-01

The study is aimed at determining the prevalence of HER2/neu overexpression in Qatari women with breast cancer and to acess the survival in patients with HER2/neu positive tumors. This is a retropspective study of clinical data of 70 Qatari female patients diagonosed with breast cancer during the priod 1991through to 2001,at Hamad Medical Corporation, Doha, Qatar. We also performed a retrospective review of breast tissue for those patients using paraffin sections and applying immunohistochemistry staining -[Hercep test (DAKO Inc)] to determine the HER/neu status. Out of all the eighteen patients (26%) were HER2/neu positive(2+ and 3+) wih a mean age at diagonosis of 49.3 years, and 52 (74%) were negative (0and 1+)with mean age at diagonosis of 46.6 years.Of patients with positive HER2/neu, 5(28%) had a relapse of disease and 4 (22%) died of disease during followup. Of the patients with HER2/neu, negative test 9(17%) had a relapse of disease and10(19%) died of the disease . The median survival function at mean of covaritesfor HER2/neu positve patients was 26 months, and for HER2/neu negative patients was 28 months. The prevalence of HER2/neu and overexpression in Qatari female with breast cancer in study is 26%, but due to small sample size it may not reflect really the prevalence. Patients with HER/neu positive were older at diagonosis than ptients with HER2/neu negative also they had higher relapse rate and mortality. Median survival function was better for HER2/neu negative patients. (author)
Simulator to evaluate and optimise driver assistance systems; Ein Simulator zur Bewertung und Optimierung von Fahrerassistenzsystemen

Energy Technology Data Exchange (ETDEWEB)

Locher, J. [Hella KG Hueck and Co., Paderborn (Germany); Kleinkes, M. [Hella KG Hueck and Co., Lippstadt (Germany)

2003-07-01

Verfuegung, der es erlaubt, Fahrerassistenzsysteme zu bewerten und Mensch-Maschine-Schnittstellen zu optimieren. Es handelt sich dabei um einen interaktiven Nachtfahrsimulator, mit dem beliebige Scheinwerfer-Lichtverteilungen originalgetreu visualisiert werden koennen. Als Versuchsfahrzeug dient ein Smart; die Bildgebung erfolgt ueber ein 3-Kanal-Hochleistungsbeamer-Projektionssystem auf Grossbildleinwaende. Neben synthetischen Fahrstrecken steht ein ca. 10 km langer digitalisierter Parcours zur Verfuegung, der im Original als Hella-Teststrecke genutzt wird. Indikatoren zur Verkehrssicherheit koennen auf direktem und indirektem Wege erfasst werden. Z. B. zwingen ploetzlich auftauchende Hindernisse den Fahrer zum Bremsen, wobei die Anhaltewege berechnet werden koennen. Ueber ein Eye-Tracking-System werden ueberdies die Augenbewegungen der Probanden erfasst. Die digitalisierte Teststrecke erlaubt durch vergleichende Untersuchungen in der Realitaet eine Validierung des Simulators. In diesem Jahr wird eine umfassende Studie zur Optimierung der Mensch-Maschine-Schnittstelle im Zusammenhang mit Infrarot-Nachtsicht-Systemen im Kraftfahrzeug erstellt. Die Vorteile der Simulation liegen nicht nur in der Durchfuehrungsoekonomie und der Variablenkontrolle, sondern auch darin, dass Eigenschaften von Fahrerassistenzsystemen bewertet werden koennen, die in der Realitaet technisch derzeit noch gar nicht realisierbar sind. Die Anwendung des hier entwickelten Simulators ist nicht auf Versuche im Zusammenhang mit der Sicherheit etwaiger Hindernisse beschraenkt. Vielmehr laesst sich eine grosse Bandbreite moeglicher Fahrerassistenzsysteme untersuchen und bewerten. (orig.)
Immunohistochemical detection of Her-2/neu overexpression in ...

African Journals Online (AJOL)

Materials and Methods: Immunohistochemical staining for Her-2/neu was performed on 10% formalin-fixed, paraffinembedded primary carcinoma of the breast from 83 patients, between 2003 and 2007 using anti-Her-2/neu rabbit polyclonal antibody (DakoCytomation, CA, USA) and reactivity detected by an avidin-biotin ...
NeuLAND prototype: response to fast neutrons

Energy Technology Data Exchange (ETDEWEB)

Jaehrling, Simon; Scheit, Heiko [Technische Universitaet Darmstadt (Germany); Aumann, Thomas [Technische Universitaet Darmstadt (Germany); GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Darmstadt (Germany); Boretzky, Konstanze; Heil, Michael; Kresan, Dmytro; Simon, Haik [GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Darmstadt (Germany); Gasparic, Igor [Technische Universitaet Darmstadt (Germany); Rudjer Boskovic Institute, Zagreb (Croatia); Collaboration: R3B-Collaboration

2014-07-01

Within the R3B collaboration (Reactions with Relativistic Radioactive Beams), a new neutron detector NeuLAND (New Large Area Neutron Detector) is being developed. It will be a fully active scintillation detector consisting of 3000 scintillator bars, arranged in 30 double layers. Within a double layer 50 bars are horizontal and 50 vertical orientated. The whole detector measures 2.5 x 2.5 x 3 m{sup 3}. A prototype with 150 NeuLAND bars was tested at GSI using quasi-mono-energetic neutrons with different energies from 200 to 1500 MeV stemming from quasi-free deuteron breakup reactions on a CH{sub 2} target. The experimental setup is described, and preliminary results for the time resolution and efficiency of the NeuLAND prototype detector are presented.
Comics Intermedial Von Christian A. Bachmann, Véronique Sina und Lars Banhold (Hg.

Directory of Open Access Journals (Sweden)

Paul Winkler

2013-09-01

Full Text Available Als ein fruchtbares Feld der Intermedialitätsforschung wird der Comic im vorliegenden Sammelband neu abgesteckt. Beiträge von insgesamt zwölf Autoren nähern sich der Forschungsthematik dabei anhand von Aspekten wie Kunst, Fotografie, Kino, Rundfunk, Merchandising, Computerspiele oder Internet. Mediale und disziplinäre Übergänge werden veranschaulicht und gleichzeitig ein eigenständiges "Forschungsfeld Comic" neu verhandelt.
Radiation therapy for angiosarcoma of the scalp. Treatment outcomes of total scalp irradiation with X-rays and electrons

Energy Technology Data Exchange (ETDEWEB)

Hata, Masaharu; Koike, Izumi; Kasuya, Takeo; Inoue, Tomio [Yokohama City University Graduate School of Medicine, Department of Radiology, Yokohama, Kanagawa (Japan); Wada, Hidefumi [Yokohama City University Graduate School of Medicine, Department of Dermatology, Yokohama, Kanagawa (Japan); Ogino, Ichiro [Yokohama City University Medical Center, Department of Radiation Oncology, Yokohama, Kanagawa (Japan); Omura, Motoko [Yokohama City University Graduate School of Medicine, Department of Radiology, Yokohama, Kanagawa (Japan); Shonankamakura General Hospital, Department of Radiation Oncology, Kamakura, Kanagawa (Japan); Tayama, Yoshibumi [Yokohama Minami Kyousai Hospital, Department of Radiology, Yokohama, Kanagawa (Japan); Odagiri, Kazumasa [Yokohama City University Graduate School of Medicine, Department of Radiology, Yokohama, Kanagawa (Japan); Yokohama Municipal Citizen' s Hospital, Department of Radiation Oncology, Yokohama, Kanagawa (Japan)

2014-10-15

wurde mit einer durchschnittlichen Ausgangsdosis von 50 Gy in 25 Fraktionen bestrahlt. Eine anschliessende lokale Zusatzbestrahlung am Tumorort in 35 Fraktionen erreichte eine Gesamtdosis von 70 Gy. Waehrend der durchschnittlichen Beobachtungszeit von 14 Monaten nach der Strahlenbehandlung entwickelten 14 der 17 Patienten Rezidive; 7 davon hatten Rezidive in der Kopfhaut, einschliesslich Progression des Primaertumors bei 2 Patienten und neu aufgetretene Krankheiten bei 5 Patienten, waehrend sich bei 12 Patienten Fernmetastasen entwickelten. Die primaere progressionsfreie, rueckfallfreie und fernmetastasenfreie Ueberlebensrate betrug jeweils nach 1 Jahr 86, 67 und 38 % und nach 3 Jahren 86 %, 38 % und 16 %. Insgesamt 13 Patienten verstarben. Sowohl die Gesamt- als auch ursachenspezifische Ueberlebensrate betrug nach einem Jahr 73 % und nach 3 Jahren jeweils 23 und 44 %. Die durchschnittliche Ueberlebenszeit betrug 16 Monate. Es gab keine therapiebezogenen drittgradigen oder staerkeren toxischen Reaktionen. Die Bestrahlung der gesamten Kopfhaut ist zur lokalen Tumorkontrolle sicher und effektiv, jedoch kann eine Dosis von ≤ 50 Gy in konventionellen Fraktionen unzureichend sein, um mikroskopische Tumore zu beseitigen. Fuer massive Tumore wird eine Gesamtdosis von 70 Gy, und fuer tief invasive Tumore von > 70 Gy empfohlen. (orig.)
Nietzsche ein Immanentist?

Directory of Open Access Journals (Sweden)

Andreas Urs Sommer

2017-12-01

Full Text Available Mein Artikel besteht aus drei Abschnitten: Der erste Teil beschäftigt sich mit Nietzsches Gebrauch des Begriffs der „Immanenz“; ich werde diesen Gebrauch nachzeichnen. Mein zweiter Punkt ist ein allgemeinerer: Ich möchte den Fokus auf die Frage legen, ob es für Nietzsche möglich ist, ein starkes Konzept von Immanenz zu vertreten, insbesondere wenn wir uns in Erinnerung rufen, dass Nietzsche eine deutliche Opposition zu allen Vorstellungen von Transzendenz formuliert. Soll hier irgendeine Art von Immanenz bewahrt werden? Der dritte Abschnitt beinhaltet eine eingehendere Untersuchung von zwei Passagen aus Jenseits von Gut und Böse (Abschnitte 2 und 6. Ich denke, dass sich in diesen Passagen wichtige Aspekte aufzeigen lassen, insbesondere mit Hinblick auf die Frage, ob Nietzsche irgendeine Art von Vorstellung oder ein Konzept der Immanenz vertritt.
NeuLand submodules exposed to fast neutrons

Energy Technology Data Exchange (ETDEWEB)

Gasparic, Igor [Technische Univ. Darmstadt (Germany); Rudjer Boskovic Institute, Zagreb (Croatia); Aumann, Thomas [Technische Univ. Darmstadt (Germany); GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Darmstadt (Germany); Boretzky, Konstanze; Heil, Michael; Simon, Haik [GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Darmstadt (Germany); Jaehrling, Simon [Technische Univ. Darmstadt (Germany); Collaboration: R3B-Collaboration

2013-07-01

Within the R{sup 3}B collaboration (Reactions with Relativistic Radioactive Beams), a new neutron detector NeuLAND (New Large Area Neutron Detector) is being developed. The technical design was finalized in November 2011, a fully active scintillator concept was chosen. It will be a box-shaped 2.5 x 2.5 x 3 m{sup 3} detector consisting of 3000 scintillator bars arranged in 60 planes with mutually orthogonal orientation. An array of 150 NeuLAND bars was exposed to fast ''mono-energetic'' neutrons stemming from quasi-free deuteron breakup reactions on a CH{sub 2} target (250 to 1500 AMeV). The experiment carried out at GSI in Nov. 2012 aims for determination of both time resolution and efficiency of NeuLAND submodules. Preliminary results of the analysis are presented.
Knieendoprothetik - Update

Directory of Open Access Journals (Sweden)

Dorn U

2008-01-01

Full Text Available Weltweit hat in den letzten 10 Jahren die Zahl der Knieendoprothesen-Implantationen stark zugenommen. Nach relativ kurzer Zeit wird durch die Operation eine erhebliche Verbesserung bezogen auf Schmerzbelastung, Gelenksfunktion und Lebensqualität erzielt. Minimal-invasive Zugänge in Kombination mit dazu neu entwickelten Instrumenten beeinträchtigen die Muskelfunktion weniger als der mediale parapatellare Standardzugang und verkürzen die frühe Rehabilitationsphase. Der Einsatz der Navigation erleichtert die präzise Positionierung der Implantate. Sowohl für die minimal-invasive Implantationstechnik als auch für die navigationsunterstützte Technik fehlen noch Ergebnisse, die gegenüber konventioneller Technik bessere Funktion und längere Standzeit dokumentieren. Moderne Prothesen ermöglichen eine Rotation des Unterschenkels entweder durch asymmetrische Formgebung der Femurkondylen oder durch die Rotation der Polyethylenplattform auf der Tibiakomponente bei Prothesen mit konformer Kondylengestaltung. Femur- und Tibiakomponenten mit rotierender Plattform sind aus CoCr-Stahl, Tibiakomponenten mit fest montiertem Polyethylenteil sind meist aus Titanlegierungen gefertigt. In den letzten Jahren werden bei Patienten mit bekannter Metallallergie (insbesondere Nickelallergie spezielle Implantate aus oberflächenbeschichtetem Titan oder Zirkonium eingesetzt. Cross-linked Polyethylen hat noch nicht die gleiche Verbreitung gefunden wie bei Hüftimplantaten. Prothesen mit erhöhter Flexionsmöglichkeit gewannen in letzter Zeit an Bedeutung. Der Einsatz von Halbschlitten-Prothesen ist durch minimal-invasive Zugänge und verbesserte Instrumente wieder populärer geworden. Die Vielfalt modularer Endoprothesensysteme verschiedener Hersteller hat insbesondere Revisionsoperationen leichter gemacht. Dadurch sind auch nach Wechseloperationen ähnliche Ergebnisse zu erzielen wie nach primärer Implantation.

A preliminary study on the application of Friction Welding in structural repairs

Energy Technology Data Exchange (ETDEWEB)

Pauly, D.; Santos, J.F. dos [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Materialforschung; Blakemore, G.R. [Pressure Products Group, Aberdeen (United Kingdom); Gibson, D. [National Hyperbaric Centre, Aberdeen (United Kingdom)

1998-11-01

Friction Welding is characterised by the absence of a fusion zone associated with comparatively low temperatures in the weld. These features allow the application of this welding process in joining and repair of most engineering structures, especially in hazardous environments. This work presents a preliminary study on different friction welding processes, including the recently developed Friction Hydro-Pillar Processing (FHPP) and Friction Stitch Welding, as joining technologies for thick-walled structures. The use of these welding processes in different industrial applications, compared with the commonly used arc welding counterparts, as well as the influence of welding parameters on the weldment integrity are discussed. A brief description of a portable friction welding equipment and its possible implementation for FHPP are presented. Stud welds produced in the commissioning phase of this equipment have been analysed and tested to assess their quality. (orig.) [Deutsch] Da die Schweisszonentemperatur waehrend des Reibschweissvorganges vergleichsweise niedrig ist, bildet sich kein Schmelzbad aus. Anwendbar ist dieses Schweissverfahren zur Verbindung oder Reparatur der meisten Metallkonstruktionen, speziell in risikobehafteter Umgebung. Diese Arbeit enthaelt eine Vorstudie zu verschiedenen Reibschweissprozessen, einschliesslich der neu entwickelten Friction Hydro-Pillar Processing (FHPP)- und Friction Stitch Welding-Verfahren, als Fuegetechniken fuer dickwandige Strukturen. Die Anwendbarkeit dieser Schweissprozesse in verschiedenen Industrien, verglichen mit herkoemmlich verwendeten Lichtbogenschweissverfahren, sowie der Einfluss von Schweissparametern auf die Guete der Verbindung werden diskutiert. Praesentiert wird ausserdem eine tragbare Reibschweissmaschine und ihre moegliche Verwendung zum FHPP-Schweissen. Bolzenschweissungen, die waehrend der Inbetriebnahmephase dieser Maschine hergestellt wurden, sind zur Charakterisierung ihrer Qualitaet analysiert und
Status of the neutron detector NeuLAND in 2014

Energy Technology Data Exchange (ETDEWEB)

Miki, Kenjiro; Caesar, Christoph; Scheit, Heiko [IKP, TU-Darmstadt, Darmstadt (Germany); Aumann, Thomas [IKP, TU-Darmstadt, Darmstadt (Germany); GSI, Darmstadt (Germany); Boretzky, Konstanze; Heil, Michael; Simon, Haik [GSI, Darmstadt (Germany); Gasparic, Igor [RBI, Zagreb (Croatia); Collaboration: R3B-Collaboration

2015-07-01

We report on the present status of the new neutron detector NeuLAND designed for the R3B facility at FAIR. The NeuLAND is a segmented large-volume plastic scintillation detector with a designed volume of 2.5(width) x 2.5(height) x 30 (depth) m{sup 3}, which will provide high efficiency, good timing resolution and high multi-neutron resolving power. Ten planes of scintillator walls, corresponding to the depth of 0.5 m, have been constructed and tested so far. The performance of this NeuLAND demonstrator was studied with fast neutrons from heavy-ion beams in GSI. The {sup 48}Ca, {sup 58}Ni and {sup 236,238}U beams with incident energies from 400 to 800 MeV/u were impinged on C, Pb, or U target, and neutrons produced around 0 degrees were detected by the NeuLAND. Neutron hit distributions were obtained for one and multiple neutron events, allowing us for detailed response studies. An excellent timing resolution of typically 150 psec (σ) was determined online. The presentation includes the detailed explanation of the experimental setups and obtained results. The outlook comprises further NeuLAND construction and data taking during the next year.
NeuCode Proteomics Reveals Bap1 Regulation of Metabolism

Directory of Open Access Journals (Sweden)

Joshua M. Baughman

2016-07-01

Full Text Available We introduce neutron-encoded (NeuCode amino acid labeling of mice as a strategy for multiplexed proteomic analysis in vivo. Using NeuCode, we characterize an inducible knockout mouse model of Bap1, a tumor suppressor and deubiquitinase whose in vivo roles outside of cancer are not well established. NeuCode proteomics revealed altered metabolic pathways following Bap1 deletion, including profound elevation of cholesterol biosynthetic machinery coincident with reduced expression of gluconeogenic and lipid homeostasis proteins in liver. Bap1 loss increased pancreatitis biomarkers and reduced expression of mitochondrial proteins. These alterations accompany a metabolic remodeling with hypoglycemia, hypercholesterolemia, hepatic lipid loss, and acinar cell degeneration. Liver-specific Bap1 null mice present with fully penetrant perinatal lethality, severe hypoglycemia, and hepatic lipid deficiency. This work reveals Bap1 as a metabolic regulator in liver and pancreas, and it establishes NeuCode as a reliable proteomic method for deciphering in vivo biology.
Prenatal diagnosis of Neu-Laxova syndrome: a case report

Directory of Open Access Journals (Sweden)

Polat Ibrahim

2002-02-01

Full Text Available Abstract Background Neu-Laxova syndrome is a rare congenital abnormality involving multiple systems. We report a case of Neu-Laxova syndrome (NLS diagnosed prenatally by ultrasound examination. Case presentation A 29-year-old gravida 3, para 2 woman was first seen in our antenatal clinic at 38 weeks' pregnancy. Except for the consanguinity and two previous abnormal stillborn babies her medical history was unremarkable. On ultrasound examination microcephaly, flat forehead, micrognathia, intrauterine growth restriction, generalized edema of the skin, hypoplastic chest, excessive soft tissue deposition of hands and feet, joint contractures and a penis without scrotal sacs were detected. She delivered a 2000 g male fetus. He died five minutes after delivery. Postmortem examination confirmed the diagnosis of Neu-Laxova syndrome. Conclusion Because of the autosomal recessive inheritance of Neu-Laxova syndrome genetic counseling and early-serial ultrasound examination should be performed at risk families. Early diagnosis of the disease may offer termination of the pregnancy as an option.
Development of an analysis method for determining chlorinated hydrocarbons in marine sediments and suspended matter giving particular consideration to supercritical fluid extraction; Entwicklung eines Analysenverfahrens zur Bestimmung von chlorierten Kohlenwasserstoffen in marinen Sedimenten und Schwebstoffen unter besonderer Beruecksichtigung der ueberkritischen Fluidextraktion

Energy Technology Data Exchange (ETDEWEB)

Sterzenbach, D.

1997-11-01

diesem Grund soll das gesamte Verfahren und dessen Einzelschritte unter diesem Gesichtspunkt ueberprueft und gegebenenfalls verbessert werden. Fuer die Probennahme von marinen Schwebstoffen soll ein Verfahren erarbeitet werden, das eine effiziente Abtrennung moeglichst kleiner suspendierter Partikel aus Seewasser ermoeglicht. Mit dem entwickelten Analysenverfahren sollen aktuelle Aspekte der Meereschemie zu Quellen, Transport, Verteilung und Verbleib von chlorierten Kohlenwasserstoffen in der marinen Umwelt behandelt werden. (orig.)
Gratis Online Lernen – 100 Empfehlungen und mehr von Lehrenden für Lehrendea

Directory of Open Access Journals (Sweden)

Angelika Güttl-Strahlhofer

2015-09-01

Full Text Available Im Rahmen der Lehrveranstaltungsreihe "Open Air" lud die Arbeitsgemeinschaft Güttl/Krisper/Röthler im WS 14/15 LehrerInnen zum Besuch des MOOCs "Gratis Online Lernen" der steirischen Plattform iMooX ein. Elf TeilnehmerInnen waren bereit, im Anschluss an die Teilnahme am Kurs ihre Erkenntnisse in ein Gemeinschaftswerk einfließen zu lassen, dessen Entstehung in der digitalen Werkstatt koordiniert wurde (Adobe Connect und Moodle. Aus der Überzeugung heraus, dass das gemeinsame Besuchen eines solchen Online-Kurses nur ein Teil eines Lernerlebnisses sein kann und das gemeinsame Erarbeiten für die Teilnehmerinnen und Teilnehmer ein zusätzlicher Schritt zum Überblicken der schier unendlichen Angebotslandschaft darstellt. Diese diskutierten, entwickelten, verwarfen und evaluierten interessante Lernangebote. Vorbild war sowohl für den Entstehungsprozess als auch für das Ergebnis der Schummelzettel "Urheberrecht und OER". http://www.virtuelle-ph.at/mod/page/view.php?id=32645.
Processing and characterisation of novel metal-reinforced Al{sub 2}O{sub 3}-composites; Herstellung und Charakterisierung neuartiger metallverstaerkter Al{sub 2}O{sub 3}-Verbundwerkstoffe

Energy Technology Data Exchange (ETDEWEB)

Guenther, R. [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Werkstofforschung

1999-07-01

Using a new processing route, Al{sub 2}O{sub 3}-based ceramic composites have been prepared, that consist of 3-d networks of the ceramic and different metallic phases. The damage tolerance of these composites could be significantly improved over monolithic Al{sub 2}O{sub 3}: fracture strength and fracture toughness were increased by a factor of 4 up to 1393 MPa and 11.8 MPa {radical}(m), respectively. Similarly, resistance against abrasive wear was successfully improved by a factor of two over monolithic Al{sub 2}O{sub 3}. In combination with the good electrical and thermal conductivity, these superior mechanical properties are of great interest for automotive and biomedical industries. (orig.) [German] Mit einem neu entwickelten Verfahren werden keramische Al{sub 2}O{sub 3}-Verbundwerkstoffe hergestellt, die sich durch eine dreidimensionale Vernetzung der (inter)metallischen und der keramischen Phase auszeichnen. Die Schadenstoleranz derartiger Verbundwerkstoffe konnte im Vergleich zu monolithischer Al{sub 2}O{sub 3}-Keramik deutlich gesteigert werden: Die Bruchfestigkeit und die Bruchzaehigkeit wurden jeweils um einen Faktor 4 auf 1393 MPa bzw. 11,8 MPa {radical}(m) erhoeht, die Abriebfestigkeit um einen Faktor 2 verbessert. In Kombination mit der elektrischen und thermischen Leitfaehigkeit sind diese aussergewoehnlichen mechanischen Eigenschaften in Automobilbau und in der Medizintechnik von grossem Interesse. (orig.)
Die drei Vorführungen eines geheimen Dokumentarfilms. Eine kritische Revision von Theresienstadt

Directory of Open Access Journals (Sweden)

Natascha Drubek

2017-04-01

Full Text Available Dieser Artikel liefert auf der Grundlage einer gründlichen Lektüre von tschechischen, deutschen und französischen Quellen eine neue Perspektive auf das Filmmaterial, das im Ghetto von Theresienstadt gedreht wurde und unter den Titeln Ghetto Theresienstadt, Theresienstadt 1942 und Theresienstadt. Ein Dokumentarfilm aus dem jüdischen Siedlungsgebiet bzw. auch als Der Führer schenkt den Juden eine Stadt bekannt ist. In einer Revision des allgemeinen Konsensus der letzten zwei Jahrzehnte argumentiert der Artikel, dass die verschiedenen Filmaufnahmen zwischen 1942 und 1945 ein zusammenhängendes Filmprojekt bilden. Die Autorin schlägt Korrekturen der filmographischen Daten vor, wie etwa die Einbindung des letzten „Jewish Elder“ des Ghettos, Benjamin Murmelstein, als Ko-Autor des Scripts. Eine Rekonstruktion des Datums, des Zeitpunkts und des Orts der ersten offiziellen Vorführung des Films für Delegierte des Komitees des Internationalen Roten Kreuzes wird durch eine komparative Untersuchung von verschiedenen Quellen und auf Textanalyse basierenden Ausschlussverfahren möglich. Bisherige Auffassungen des beabsichtigten Effekts und der Zielgruppe des Films revidierend, lenkt der Artikel die Aufmerksamkeit auf den Fakt, dass der Film vom Reichssicherheitshauptamt (RSHA 1942 initiiert und zum Kriegsende drei sorgfältig ausgewählten Gruppen vorgeführt wurde. Eine Untersuchung des Publikums der Premiere am 6. April 1945 lässt eine Neubewertung der Frage zu, ob der Film als Propagandafilm eingestuft werden kann oder eher als Strategem des deutschen Geheimdienstes.
Clinicopathological and prognostic significance of HER-2/neu and VEGF expression in colon carcinomas

Directory of Open Access Journals (Sweden)

Li Jing

2011-06-01

Full Text Available Abstract Background HER-2/neu and VEGF expression is correlated with disease behaviors in various cancers. However, evidence for their expression in colon cancer is rather contradictory both for the protein expression status and prognostic value. HER-2/neu is found to participate in VEGF regulation, and has known correlation with VEGF expression in some tumors. In this study, we investigated HER-2/neu and VEGF expression in Chinese colon patients and explored whether there was any correlation between their expression patterns. Methods HER-2/neu and VEGF were investigated immunohistochemically using tumor samples obtained from 317 colon cancer patients with all tumor stages. Correlation of the degree of staining with clinicopathological parameters and survival was investigated. Results Positive expression rates of HER-2/neu and VEGF in colon cancer were 15.5% and 55.5% respectively. HER-2/neu expression was significantly correlated with tumor size and distant metastases (P (P > 0.05. Expression of VEGF was significantly correlated with tumor size, tumor stage, lymph node metastases, and distant metastases (P (P = 0.146. No correlation between HER-2/neu and VEGF expression was detected (P = 0.151. Conclusions HER-2/neu and VEGF are not important prognostic markers of colon cancer. The present results do not support any association between HER2/neu and VEGF expression in this setting.
Alphavirus replicon particles containing the gene for HER2/neu inhibit breast cancer growth and tumorigenesis

International Nuclear Information System (INIS)

Wang, Xiaoyan; Wang, Jian-Ping; Maughan, Maureen F; Lachman, Lawrence B

2005-01-01

Overexpression of the HER2/neu gene in breast cancer is associated with an increased incidence of metastatic disease and with a poor prognosis. Although passive immunotherapy with the humanized monoclonal antibody trastuzumab (Herceptin) has shown some effect, a vaccine capable of inducing T-cell and humoral immunity could be more effective. Virus-like replicon particles (VRP) of Venezuelan equine encephalitis virus containing the gene for HER2/neu (VRP-neu) were tested by an active immunotherapeutic approach in tumor prevention models and in a metastasis prevention model. VRP-neu prevented or significantly inhibited the growth of HER2/neu-expressing murine breast cancer cells injected either into mammary tissue or intravenously. Vaccination with VRP-neu completely prevented tumor formation in and death of MMTV-c-neu transgenic mice, and resulted in high levels of neu-specific CD8 + T lymphocytes and serum IgG. On the basis of these findings, clinical testing of this vaccine in patients with HER2/neu + breast cancer is warranted
Neu/Now tuleb varsti

Index Scriptorium Estoniae

2011-01-01

Neu/Now festivalil saab 17.-20. novembril Tallinna vanalinnas näha 35 kunstiprojekti 17 riigist. Cian McKenna (Iirimaa) disainiprojektist "Digitaalne teraapia", Richard Schwarzi (Austria) visuaalse kunsti projektist "Pikslitest" ja Maartje Meijeri (Holland) muusikaprojektist "Kuidas kirjutada fuugat?", mida tõstsid esile festivali kunstilised juhid Anthony Dean ja Paula Crabtree
Impact of postoperative radiotherapy and HER2/new overexpression in salivary duct carcinoma. A monocentric clinicopathologic analysis

Energy Technology Data Exchange (ETDEWEB)

Haderlein, Marlen; Semrau, Sabine; Lettmaier, Sebastian; Hecht, Markus; Fietkau, Rainer [University Hospital of Erlangen, Department of Radiation Oncology, Erlangen (Germany); Scherl, Claudia; Iro, Heinrich [University Hospital of Erlangen, Department of Otorhinolaryngology, Erlangen (Germany); Erber, Ramona; Agaimy, Abbas [University Hospital of Erlangen, Institute of Pathology, Erlangen (Germany)

2017-11-15

Speichelgangkarzinomen (SDC) untersucht. Von einem erfahrenen Pathologen wurden 67 Patienten mit De-novo-SDC bzw. aus einem pleomorphen Adenom entstandenem SDC (SDC ex-PA) erneut befundet. Die paraffinfixierten Tumorschnitte wurden immunhistochemisch auf die Expression von HER2/neu, Androgen(AR)-, Progesteron(PR)-, Oestrogen(ER)-, ''epidermal growth factor''(EGFR)- und ''programmed death ligand 1''(PD-L1-R)-Rezeptoren untersucht. Bei 45 Patienten ohne Fernmetastasen mit Follow-up-Daten wurden Ueberlebenskurven mit der Kaplan-Meier-Methode bestimmt. Der Log-rank-Test wurde fuer die univariate, die Cox-Regressionsanalyse fuer die multivariate Analyse der prognostischen Variablen eingesetzt. HER2/neu, AR, ER, PR, EGFR, PD-L1-R waren (ueber)exprimiert bei 25,4 %, 84 %, 0 %, 0 %, 17,9 %, 16,4 % der Patienten. Das mediane Follow-up betrug 26 Monate. Das Gesamt- (OS), das krankheitsfreie (DFS) und das fernmetastasenfreie (DMFS) Ueberleben bzw. die lokoregionaere Kontrolle (LRC) betrugen 92,3/72,4/56,9 %, 78,2/58,1/58,1 %, 85,4/65,2/65,2 % und 89,7/81,9/81,9 % nach 1/3/5 Jahren. In der univariaten Analyse korrelierten positive Resektionsraender (p = 0,008) und keine postoperative Strahlentherapie (p = 0,001) mit einer erhoehten Lokalrezidivrate, in der multivariaten Analyse zeigte sich lediglich bei der postoperativen Strahlentherapie eine statistische Signifikanz (p = 0,004). Vorhandene Lymphknotenmetastasen, eine Lymphknoten-Ratio >4 und eine HER2/neu-Ueberexpression gingen mit einem verringerten DFS und DMFS einher. In der multivariaten Analyse ist ein positiver HER2/neu-Expressionsstatus der einzige prognostische Faktor fuer ein verringertes DFS (p = 0,04) und DMFS (p = 0,02). Die postoperative Bestrahlung ist der einzige signifikante Praediktor fuer eine verbesserte LRC. Die HER2/neu-Rezeptorueberexpression ist ein unabhaengiger prognostischer Faktor fuer ein verringertes DFS und DMFS bei SDC. Zukuenftig sollte fuer SDC-Patienten zusaetzlich zur
Marketing : eine fallstudienbasierte Einführung

NARCIS (Netherlands)

Griese, K.M.; Bröring, S.

2011-01-01

Studenten sowie Praktiker erhalten eine praxisorientierte Einführung in die zentralen Grundlagen des Marketing. Ausgangspunkt jedes Kapitels ist eine Fallstudie, die eine konkrete praktische Rahmenbedingung eines Unternehmens vorstellt. Diese Situation wird in den Ausführungen dann mit den
Efficiency measurement of the NeuLAND detector

Energy Technology Data Exchange (ETDEWEB)

Toernqvist, Hans; Atar, Leyla; Aumann, Thomas; Holl, Matthias; Horvat, Andrea; Kahlbow, Julian; Miki, Kenjiro; Rossi, Dominic; Scheit, Heiko; Schindler, Fabia [Institut fuer Kernphysik, Technische Universitaet Darmstadt, Darmstadt (Germany); Boretzky, Konstanze; Caesar, Christoph; Simon, Haik [GSI Gesellschaft fuer Schwerionenforschung GmbH, Darmstadt (Germany); Gasparic, Igor [Ruder Boskovic Institute, Zagreb (Croatia); Collaboration: R3B-Collaboration

2016-07-01

NeuLAND is the next-generation high-energy and high-efficiency neutron detector currently under construction at GSI/FAIR by the R{sup 3}B collaboration. This detector will be used in a wide variety of experiments, ranging from nuclear-structure measurements of neutron-rich species to the investigation of the equation-of-state of asymmetric nuclear matter. The design goals of the full NeuLAND detector are a >95% detection efficiency for single neutrons, a time resolution of σ{sub t} ≤ 150 ps and a position resolution of σ{sub x,y,z} ≤ 1.5 cm, with a detection volume of 250 x 250 x 300 cm{sup 3}. While still under construction, a set of 4 of the 30 planned NeuLAND double-planes were used for a series of experiments at the SAMURAI setup at RIKEN. In particular, the time resolution and one-neutron efficiency were measured using neutrons from the {sup 7}Li(p,n){sup 7}Be reaction. The test setup at RIKEN are described, and the resolution and efficiency results are discussed.
THYDE-NEU: Nuclear reactor system analysis code

International Nuclear Information System (INIS)

Asahi, Yoshiro

2002-03-01

THYDE-NEU is applicable not only to transient analyses, but also to steady state analyses of nuclear reactor systems (NRSs). In a steady state analysis, the code generates a solution satisfying the transient equations without external disturbances. In a transient analysis, the code calculates temporal NRS behaviors in response to various external disturbances in such a way that mass and energy of the coolant as well as the number of neutrons conserve. The first half of the report is the description of the methods and models for use in the THYDE-NEU code, i.e., (1) the thermal-hydraulic network model, (2) the spatial kinetics model, (3) the heat sources in fuel, (4) the heat transfer correlations, (5) the mechanical behavior of clad and fuel, and (6) the steady state adjustment. The second half of the report is the users' mannual containing the items; (1) the program control, (2) the input requirements, (3) the execution of THYDE-NEU jobs, (4) the output specifications and (5) the sample calculation. (author)
File list: Unc.Neu.10.AllAg.Hypothalamus [Chip-atlas[Archive

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Zeit ein Sachcomic

CERN Document Server

Callender, Craig

2016-01-01

Die Zeit ist ein großer Lehrmeister! Das Dumme ist nur, dass sie auf Dauer alle ihre Schüler tötet. (nach Hector Berlioz) „Solange mich niemand fragt, weiß ich, was Zeit ist“, hat der Heilige Augustus gesagt. Damit ist er fast modern, denn die Quantenphysiker behaupten sogar, „Zeit, das gibt es gar nicht!“ Je genauer man es wissen will, desto komplizierter wird das mit der Zeit: Ist die Zeit wirklich eine vierte Dimension, ähnlich wie ein Raum oder „fließt“ sie sozusagen nur dahin? Und wenn sie fließt, kann man dann sagen, wie schnell? Gibt es die Zukunft? Sind Zeitreisen möglich? Und warum scheint die Zeit sich nur in eine Richtung zu bewegen. Schwierige Probleme: aber hier, wie immer in dieser Reihe, seriös, leicht und locker erklärt.
Expression of HER2/Neu in B-Cell Acute Lymphoblastic Leukemia.

Science.gov (United States)

Rodriguez-Rodriguez, Sergio; Pomerantz, Alan; Demichelis-Gomez, Roberta; Barrera-Lumbreras, Georgina; Barrales-Benitez, Olga; Aguayo-Gonzalez, Alvaro

2016-01-01

The expression of HER2/neu in B-cell acute lymphoblastic leukemia has been reported in previous studies. The objective of this research was to study the expression of HER2/neu on the blasts of patients with acute leukemia from the Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran. From June 2015 to February 2016, a HER2/neu monoclonal antibody was added to the panel of antibodies that we routinely use in patients with acute leukemia. An expression of ≥ 30% was considered positive. We studied 33 patients: 19 had de novo leukemia (57.6%), three (9.1%) were in relapse, and in 11 (33.3%) their status could not be specified. Seventeen patients (51.5%) were classified as B-cell acute lymphoblastic leukemia with a median expression of HER2/neu of 0.3% (range 0-90.2). Three patients with B-cell acute lymphoblastic leukemia were positive for HER2/neu: 89.4%, 90.9%, and 62.4%. The first and third patient had de novo B-cell acute lymphoblastic leukemia. The second patient was in second relapse after allogeneic stem cell transplant. All three patients were categorized as high-risk at the time of diagnosis. In the studied Mexican population, we found a positive expression of HER2/neu in 17% of the B-cell acute lymphoblastic leukemia patients, similar to previous studies in which the expression was found in 15-50%.
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Development of a photovoltaic-experimental system for the instruction at schools as a portable complete system. Final report; Entwicklung eines Photovoltaik-Experimentiersystems fuer den Unterricht in Schulen als portables Komplettsystem. Abschlussbericht

Energy Technology Data Exchange (ETDEWEB)

Kunsch, H.

1999-07-14

wurden die didaktischen Unterlagen erarbeitet und das Gesamtsystem im praktischen Einsatz erprobt. Das Ergebnis ist ein in Serie herstellbares Photovoltaik-Experimentiersystem gemaess der Zielsetzung. Mit dem entwickelten Produkt lassen sich schnell und einfach die Grundlagen der Photovotaik darstellen und vermitteln. (orig.)

Error-tolerant pedal for a brake-by-wire system; Fehlertolerante Pedaleinheit fuer ein elektromechanisches Bremssystem (Brake-by-Wire)

Energy Technology Data Exchange (ETDEWEB)

Stoelzl, S.

2000-07-01

The author describes the development of an error-tolerant brake-by-wire system with pedal consolidation, including the development of a monitoring and safety concept. [German] Die zunehmende Entwicklung aktiver Fahrerassistenzsysteme im Automobilbereich (z.B. ABS, ESP) zur Erhoehung der Fahrsicherheit erfordert ein staendig wachsendes Funktionspotential. Die Bremsanlagen werden dadurch immer komplexer. Parallel steigen die Anforderungen an den Bremspedalkomfort. Einen Ausweg aus dieser Problematik verspricht die Elektromechanische Bremsanlage (EMB) mit rueckwirkungsfreier Entkopplung des Fahrers von den Radbremsen (Brake-by-Wire). Das Bremskommando des Fahrers wird bei Betaetigung des Bremspedals rein sensorisch erfasst. Da es keine mechanische Rueckfallebene mehr gibt, muessen Fehler der Pedaleinheit erkannt und toleriert werden. Neu an dieser Arbeit ist die Entwicklung der fehlertoleranten elektromechanischen Pedaleinheit der EMB mit Pedalsensorkonsolidierung und Erstellung des dazu notwendigen Sicherheits- und Ueberwachungskonzepts. (orig.)
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Materials and energy balance of a university - development of an environmental management concept for universities based on the example of Osnabrueck university. Final report; Stoff- und Energieflussanalyse einer Universitaet - Erstellung eines Umweltmanagementkonzepts fuer Hochschulen am Beispiel der Universitaet Osnabrueck. Abschlussbericht

Energy Technology Data Exchange (ETDEWEB)

Matthies, M.; Viebahn, P.

1999-04-01

Teilbilanzen zur Sachbilanz der Universitaet sowie ihre Wirkungsabschaetzung. In Abschnitt IV werden die weiteren Teile des Umweltmanagement-Modells vorgestellt. In Kapitel 18 werden die im Projekt entwickelten Umweltziele und das vorgeschlagene Umweltprogramm der Universitaet (Bausteine 5 und 6) beschrieben. Kapitel 19 geht kurz auf Umweltberichte ein. Kapitel 20 enthaelt einen Ueberblick ueber das Konzept eines Umweltinformationssystems der Universitaet (Baustein UM 8). Ein weiterer Schwerpunkt des Projektes war die Entwicklung von Instrumenten zur Umsetzung von Umweltschutzmassnahmen. In Kapitel 21 werden Motivations- und Informationsmassnahmen beschrieben, die zur Umsetzung eines neuen Abfallkonzeptes entwickelt wurden (Bausteine 9 und 10). In Kapitel 22 werden weitere Instrumente aus dem Energie- und dem Verkehrsbereich vorgestellt, die jedoch noch nicht umgesetzt werden konnten. Ausgehend von diesem Projekt wurde ein neues Projekt entwickelt, das 'Netzwerk fuer eine umweltgerechte Entwicklung der Hochschulen', eco-campus.net, auf das in Kapitel 23 eingegangen wird. In Kapitel 24 erfolgt ein Resumee ueber die drei Jahre Projektarbeit. Kapitel 25 fasst schliesslich die gesamte Literatur zusammen, die vorher getrennt nach den einzelnen Kapiteln angegeben wurde. (orig.)
Messung der Respirationsverschiebung intraabdominaler Organe am Beispiel der Leber unter maschineller Ventilation

OpenAIRE

Olbrich, Bernhard

2008-01-01

Ziel dieser Arbeit ist es, die Bewegung intraabominaler Organe am Beispiel der Leber unter den Bedingungen maschineller Beatmung zu quantifizieren. Ein Messverfahren mit Hilfe eines elektromagnetischen Trackingsystems, wurde hierzu im Tierversuch neu entwickelt. Im Anschluss wurden die Messdaten mit Hilfe einer Explorativen Datenanalyse, validiert und ein einfaches Modell entwickelt, das die virtuelle Kompensation der Atemverschiebung ermöglicht. Zusätzlich wird eine praktische Anwendungsmögl...
Eine Zeit der Stille

OpenAIRE

Leibfried, Peter

2013-01-01

Rechtzeitig zu Weihnachten hat das IASB am 18. Dezember 2012 die Ergebnisse seines Agenda-Consultation-Projekts vorgestellt. Für aufmerksame Beobachter waren die Resultate kaum überraschend: Angestrebt werden unter anderem eine "period of calm to let the dust settle" anstatt neuer Regelungen, eine stärker prinzipienorientierte Ausrichtung auf das Rahmenkonzept und eine frühzeitigere Abstimmung mit den Betroffenen mit Blick auf Kosten-Nutzen-Überlegungen. Das 40-seitige Dokument ist die erste ...
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Eine Homepage erstellen

OpenAIRE

Plieninger, Jürgen

2005-01-01

Wie man für eine kleine Bibliothek eine Homepage plant, konzipiert, gestaltet, erstellt, inhaltlich füllt, pflegt und evaluiert, wird hier in knappen Stichpunkten erläutert. This tutorial deals with how to plan, concept, create, fill with informations and services a homepage for a small library.
A virosomal formulated Her-2/neu multi-peptide vaccine induces Her-2/neu-specific immune responses in patients with metastatic breast cancer: a phase I study.

Science.gov (United States)

Wiedermann, Ursula; Wiltschke, C; Jasinska, J; Kundi, M; Zurbriggen, R; Garner-Spitzer, E; Bartsch, R; Steger, G; Pehamberger, H; Scheiner, O; Zielinski, C C

2010-02-01

We have previously shown in mice that vaccination with three Her-2-peptides representing B-cell epitopes of the extracellular domain of Her-2/neu induces Her-2/neu-specific IgG antibodies with strong anti-tumor activity in vitro and in vivo. We have now finalized a phase I clinical trial with an anti-Her-2/neu vaccine-construct of immunopotentiating reconstituted influenza virosomes with the three peptides in patients with metastatic breast cancer (MBC). Ten MBC patients with low protein overexpression of Her-2/neu of MBC (+ or ++ upon immunohistochemistry, FISH negative) and positive hormone receptor status were enrolled in a single center phase I study. The virosomal formulated vaccine, consisting of 10 microg/peptide, was intramuscularly applied three times on days 1, 28, and 56. The primary endpoint of the study, which lasted 12 weeks, was safety, the secondary endpoint immunogenicity. Local erythema at the injection site was the only vaccine-related side effect occurring in four patients. In 8 of 10 patients an increase in peptide-specific antibody titer measured by ELISA was found. Importantly, the induced antibodies were also directed against the native Her-2/neu protein. Cellular immune responses, as measured by in vitro production of IL-2, IFN-c, and TNF-a of PBMCs showed a marked increase after vaccination in the majority of vaccinees. Notably, the number of CD4+CD25+Foxp3+T regulatory cells, which were significantly increased compared to healthy controls prior to vaccination, was markedly reduced following vaccination. In all, the immunological responses after vaccination indicated that the patients in stage IV of disease were immunocompetent and susceptible to vaccination. The Her-2/neu multipeptide vaccine was safe, well tolerated and effective in overcoming immunological tolerance to Her-2/neu. The induction of anti-Her-2-specific antibodies could result in clinical benefit comparable to passive anti-Her-2 antibody therapy.
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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Scintillator concept of NeuLAND at R3B

Energy Technology Data Exchange (ETDEWEB)

Aumann, Thomas; Ignatov, Alexander [Technische Universitaet Darmstadt (Germany); Boretzky, Konstanze; Heil, Michael; Simon, Haik [GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt (Germany); Maroussov, Vassili [Institut fuer Kernphysik, Universitaet zu Koeln (Germany); GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt (Germany); Zilges, Andreas [Institut fuer Kernphysik, Universitaet zu Koeln (Germany); Collaboration: R3B-Collaboration

2011-07-01

For the R3B experiment at FAIR a detection system for fast neutrons, NeuLAND (new Large Area Neutron Detector), is foreseen. Besides a time resolution of {sigma}{sub t}{approx_equal} 100 ps, spatial resolutions of {sigma}{sub x,y,z}{approx_equal} 1 cm, the detection efficiency of above 90% for neutrons of 0.2-1 GeV and a dedicated multi-neutron recognition capability are demanded. Using the FLUKA Monte Carlo code we studied a NeuLAND detector concept relying entirely on bars of a plastic scintillator (BC408). With a detector depth of 2 m the required efficiency is reached and the fraction of incident neutrons detected within resolution requirements varies from {proportional_to}70% to 80% in the desired energy range. Simulations have verified that the introduction of an inactive converter like iron deteriorates the timing performance. Due to the low density of the scintillator secondary protons typically cross several modules, thus allowing the tracking of secondaries. The status of the multi-hit recognition algorithm using the tracking information is presented along with the latest results for the scintillator prototypes for NeuLAND. Using the same framework a competing concept for NeuLAND based on MRPCs was studied as well and is contrasted to the scintillator concept.
Neu/Now testib talenti kontekstis / Mart Niineste

Index Scriptorium Estoniae

Niineste, Mart, 1983-

2011-01-01

17.-20. novembrini toimuvast rahvusvahelisest kunstifestivalist Neu/Now. Kahetasandilise festivali raames toimuvast online-festivalist ja live-festivalist. Festivali Eesti poolne kuraator Marje Lohuaru
Sarcosine induces increase in HER2/neu expression in androgen-dependent prostate cancer cells

DEFF Research Database (Denmark)

Dahl, Malin; Bouchelouche, Pierre; Kramer-Marek, Gabriela

2011-01-01

Increasing evidence suggests that Human epidermal growth factor receptor 2 (HER2/neu) is involved in progression of prostate cancer. Recently, sarcosine was reported to be highly increased during prostate cancer progression, and exogenous sarcosine induces an invasive phenotype in benign prostate...... epithelial cells. The aim of this work was to investigate the effect of sarcosine on HER2/neu expression in prostate cancer cell lines LNCaP (androgen dependent), PC-3 and DU145 (both androgen independent). Relative amounts of HER2/neu and androgen receptor (AR) transcripts were determined using RT...... that sarcosine is involved in the regulation of the oncoprotein HER2/neu. Thus, sarcosine may induce prostate cancer progression by increased HER2/neu expression. However, detailed information on cellular mechanisms remains to be elucidated....
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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Berechnung verkehrlicher Substitutionseffekte im Personenverkehr bei Online-Shopping

Science.gov (United States)

Nerlich, Mark R.; Schiffner, Felix; Vogt, Walter; Rauh, Jürgen; Breidenbach, Petra

Für Güter des täglichen, mittelfristigen und langfristigen Bedarfs sowie für das Beispiel Baumarktartikel wird das Potenzial für Personenverkehrsaufwand von Einkaufsaktivtäten quantitativ abgeschätzt. Die entwickelten Algorithmen behandeln die einkaufsvorbereitende Information und den eigentlichen Einkauf, d.h. den Erwerb eines Gutes, separat. Informationsaktivitäten haben insbesondere bei höherwertigen Gütern einen hohen Stellenwert und damit auch verkehrliche Relevanz. Wie Berechnungen zeigen, spart Online-Shopping Informations- und Einkaufsverkehrsaufwand im Pkw-Verkehr ein. Die notwendigen Eingangsdaten wie differenzierte Informations- und Einkaufshäufigkeiten sowie verkehrliche Parameter zu Verkehrsmittelwahl, Entfernungen und Wegekopplungen wurden aus eigenen Erhebungen gewonnen.
A simple method for assessment of human anti-Neu5Gc antibodies applied to Kawasaki disease.

Directory of Open Access Journals (Sweden)

Vered Padler-Karavani

Full Text Available N-glycolylneuraminic acid (Neu5Gc is an immunogenic sugar of dietary origin that metabolically incorporates into diverse native glycoconjugates in humans. Anti-Neu5Gc antibodies are detected in all human sera, though with variable levels and epitope-recognition profiles. These antibodies likely play a role in several inflammation-mediated pathologies including cardiovascular diseases and cancer. In cancer, they have dualistic and opposing roles, either stimulating or repressing disease, as a function of their dose, and some of these antibodies serve as carcinoma biomarkers. Thus, anti-Neu5Gc antibodies may signify risk of inflammation-mediated diseases, and changes in their levels could potentially be used to monitor disease progression and/or response to therapy. Currently, it is difficult to determine levels of anti-Neu5Gc antibodies in individual human samples because these antibodies recognize multiple Neu5Gc-epitopes. Here we describe a simple and specific method for detection and overall estimation of human anti-Neu5Gc antibodies. We exploit the difference between two mouse models that differ only by Neu5Gc-presence (wild-type or Neu5Gc-absence (Cmah(-/- knockout. We characterize mouse serum from both strains by HPLC, lectin and mass-spectrometry analysis and show the target Neu5Gc-epitopes. We then use Cmah(-/- knockout sera to inhibit all non-Neu5Gc-reactivity followed by binding to wild-type sera to detect overall anti-Neu5Gc response in a single assay. We applied this methodology to characterize and quantify anti-Neu5Gc IgG and IgA in sera of patients with Kawasaki disease (KD at various stages compared to controls. KD is an acute childhood febrile disease characterized by inflammation of coronary arteries that untreated may lead to coronary artery aneurysms with risk of thrombosis and myocardial infarction. This estimated response is comparable to the average of detailed anti-Neu5Gc IgG profile analyzed by a sialoglycan microarray
File list: ALL.Neu.50.AllAg.Brain [Chip-atlas[Archive

Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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File list: DNS.Neu.05.AllAg.Adult_brains [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: DNS.Neu.10.AllAg.Adult_brains [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: ALL.Neu.50.AllAg.Fetal_brain [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: DNS.Neu.50.AllAg.Adult_brains [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: DNS.Neu.20.AllAg.Adult_brains [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: ALL.Neu.05.AllAg.Fetal_brain [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: ALL.Neu.20.AllAg.Fetal_brain [Chip-atlas[Archive

Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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File list: His.Neu.20.AllAg.White_Matter [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: His.Neu.05.AllAg.White_Matter [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: His.Neu.50.AllAg.White_Matter [Chip-atlas[Archive

Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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File list: Oth.Neu.20.AllAg.Cortical_neuron [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Oth.Neu.20.AllAg.Cortical_neuron mm9 TFs and others Neural Cortical neuron SRX67167...3,SRX1057051 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Oth.Neu.20.AllAg.Cortical_neuron.bed ...
File list: Oth.Neu.50.AllAg.Cortical_neuron [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: Oth.Neu.05.AllAg.Cortical_neuron [Chip-atlas[Archive

Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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File list: ALL.Neu.10.AllAg.Thalamic_Nuclei [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: ALL.Neu.50.AllAg.Adult_brains [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available ALL.Neu.50.AllAg.Adult_brains hg19 All antigens Neural Adult brains SRX643470,SRX11...189408,SRX189413 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/ALL.Neu.50.AllAg.Adult_brains.bed ...
File list: ALL.Neu.10.AllAg.Adult_brains [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available ALL.Neu.10.AllAg.Adult_brains hg19 All antigens Neural Adult brains SRX643470,SRX11...643463,SRX189413 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/ALL.Neu.10.AllAg.Adult_brains.bed ...
File list: ALL.Neu.20.AllAg.Adult_brains [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available ALL.Neu.20.AllAg.Adult_brains hg19 All antigens Neural Adult brains SRX643470,SRX11...189408,SRX189413 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/ALL.Neu.20.AllAg.Adult_brains.bed ...
File list: DNS.Neu.50.AllAg.Fetal_brain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available DNS.Neu.50.AllAg.Fetal_brain hg19 DNase-seq Neural Fetal brain SRX040380,SRX040395,...6,SRX121278 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/DNS.Neu.50.AllAg.Fetal_brain.bed ...
File list: DNS.Neu.20.AllAg.Fetal_brain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available DNS.Neu.20.AllAg.Fetal_brain hg19 DNase-seq Neural Fetal brain SRX040380,SRX040395,...6,SRX121278 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/DNS.Neu.20.AllAg.Fetal_brain.bed ...
File list: ALL.Neu.05.AllAg.Adult_brains [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available ALL.Neu.05.AllAg.Adult_brains hg19 All antigens Neural Adult brains SRX643470,SRX01...189408,SRX189413 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/ALL.Neu.05.AllAg.Adult_brains.bed ...
File list: DNS.Neu.10.AllAg.Fetal_brain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available DNS.Neu.10.AllAg.Fetal_brain hg19 DNase-seq Neural Fetal brain SRX040380,SRX040395,...6,SRX121278 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/DNS.Neu.10.AllAg.Fetal_brain.bed ...
File list: ALL.Neu.20.AllAg.Thalamic_Nuclei [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available ALL.Neu.20.AllAg.Thalamic_Nuclei hg19 All antigens Neural Thalamic Nuclei SRX998288...,SRX998287,SRX998286 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/ALL.Neu.20.AllAg.Thalamic_Nuclei.bed ...
File list: His.Neu.10.AllAg.Thalamic_Nuclei [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.10.AllAg.Thalamic_Nuclei hg19 Histone Neural Thalamic Nuclei SRX998288,SRX9...98287,SRX998286 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/His.Neu.10.AllAg.Thalamic_Nuclei.bed ...
File list: ALL.Neu.05.AllAg.Thalamic_Nuclei [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available ALL.Neu.05.AllAg.Thalamic_Nuclei hg19 All antigens Neural Thalamic Nuclei SRX998288...,SRX998287,SRX998286 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/ALL.Neu.05.AllAg.Thalamic_Nuclei.bed ...
File list: ALL.Neu.50.AllAg.Thalamic_Nuclei [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available ALL.Neu.50.AllAg.Thalamic_Nuclei hg19 All antigens Neural Thalamic Nuclei SRX998288...,SRX998287,SRX998286 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/ALL.Neu.50.AllAg.Thalamic_Nuclei.bed ...
File list: His.Neu.50.AllAg.Thalamic_Nuclei [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.50.AllAg.Thalamic_Nuclei hg19 Histone Neural Thalamic Nuclei SRX998288,SRX9...98287,SRX998286 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/His.Neu.50.AllAg.Thalamic_Nuclei.bed ...
File list: His.Neu.20.AllAg.Thalamic_Nuclei [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.20.AllAg.Thalamic_Nuclei hg19 Histone Neural Thalamic Nuclei SRX998288,SRX9...98287,SRX998286 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/His.Neu.20.AllAg.Thalamic_Nuclei.bed ...
NeuN Expression Alterations in the Hippocampus Following Ecstasy Treatment

Directory of Open Access Journals (Sweden)

Ghasemi Moravej

2016-05-01

Full Text Available Background The administration of 3-4-methylenedioxymethamphetamine (MDMA leads to learning and memory impairment. Objectives Due to the effect of neurogenesis on memory and learning, in this study, we investigated the effects of MDMA on NeuN expression (a marker of neurogenesis in the hippocampus. Methods Adult male Wistar rats (weighing 200 - 250 g received a single intraperitoneal dose of 10 mg/kg of MDMA or were left undisrupted. The expression of NeuN was assessed using the immunohistochemistry method 7, 14, 28, and 60 days following MDMA administration. Results Our results showed that MDMA administration caused a decrease in NeuN expression in the experimental group compared with the control group. Conclusions These results suggest a negative correlation between MDMA administration and adult hippocampal neurogenesis.

NEU3 Sialidase Protein Interactors in the Plasma Membrane and in the Endosomes*

Science.gov (United States)

Cirillo, Federica; Ghiroldi, Andrea; Fania, Chiara; Piccoli, Marco; Torretta, Enrica; Tettamanti, Guido; Gelfi, Cecilia; Anastasia, Luigi

2016-01-01

NEU3 sialidase has been shown to be a key player in many physio- and pathological processes, including cell differentiation, cellular response to hypoxic stress, and carcinogenesis. The enzyme, peculiarly localized on the outer leaflet of the plasma membrane, has been shown to be able to remove sialic acid residues from the gangliosides present on adjacent cells, thus creating cell to cell interactions. Nonetheless, herein we report that the enzyme localization is dynamically regulated between the plasma membrane and the endosomes, where a substantial amount of NEU3 is stored with low enzymatic activity. However, under opportune stimuli, NEU3 is shifted from the endosomes to the plasma membrane, where it greatly increases the sialidase activity. Finally, we found that NEU3 possesses also the ability to interact with specific proteins, many of which are different in each cell compartment. They were identified by mass spectrometry, and some selected ones were also confirmed by cross-immunoprecipitation with the enzyme, supporting NEU3 involvement in the cell stress response, protein folding, and intracellular trafficking. PMID:26987901
File list: Unc.Neu.20.AllAg.Brain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.20.AllAg.Brain mm9 Unclassified Neural Brain SRX218191,SRX1125792,SRX112579...3,SRX1125795,SRX1125794,SRX218193,SRX218192,SRX017294,SRX218195,SRX218194,SRX1125797,SRX1125796 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.20.AllAg.Brain.bed ...
File list: Unc.Neu.10.AllAg.Brain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.10.AllAg.Brain mm9 Unclassified Neural Brain SRX218191,SRX1125792,SRX112579...3,SRX218193,SRX017294,SRX218195,SRX1125795,SRX1125794,SRX218192,SRX1125797,SRX1125796,SRX218194 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.10.AllAg.Brain.bed ...
File list: Unc.Neu.05.AllAg.Brain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.05.AllAg.Brain mm9 Unclassified Neural Brain SRX1125793,SRX1125792,SRX21819...5,SRX218191,SRX218193,SRX218194,SRX017294,SRX1125795,SRX1125794,SRX1125796,SRX1125797,SRX218192 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.05.AllAg.Brain.bed ...
File list: Unc.Neu.50.AllAg.Brain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.50.AllAg.Brain mm9 Unclassified Neural Brain SRX218191,SRX1125793,SRX112579...2,SRX218193,SRX218192,SRX017294,SRX1125795,SRX1125794,SRX218195,SRX218194,SRX1125796,SRX1125797 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.50.AllAg.Brain.bed ...
Clinical significance of serum and urinary HER2/neu protein levels in primary non-muscle invasive bladder cancer

Directory of Open Access Journals (Sweden)

Ozgur Arikan

2015-12-01

Full Text Available Objective: We aimed to compare serum and urinary HER2/neu levels between healthy control group and patients with non-muscle invasive bladder cancer. Additionally, we evaluated relationship of HER2/neu levels with tumor stage, grade, recurrence and progression. Materials and Methods: Fourty-four patients with primary non-muscle invasive bladder tumors (Group 2 and 40 healthy control group (Group 1 were included the study. Blood and urinary samples were collected from all patients and HER2/neu levels were measured by ELISA method. Blood and urinary HER2/neu levels and additionally, ratio of urinary HER2/neu levels to urinary creatinine levels were recorded. Demographic data and tumor characteristics were recorded. Results: Mean serum HER2/neu levels were similar between two groups and statistically significant difference wasn't observed. Urinary HER2/neu levels were significantly higher in group 2 than group 1. Ratio of urinary HER2/neu to urinary creatinine was significantly higher in group 2 than group 1, (p=0,021. Serum and urinary HER2/ neu levels were not associated with tumor stage, grade, recurrence and progression while ratio of urinary HER2/neu to urinary creatinin levels were significantly higher in high-grade tumors. HER2/neu, the sensitivity of the test was found to be 20.5%, and the specificity was 97.5%, also for the urinary HER2/neu/urinary creatinine ratio, the sensitivity and specificity of the test were found to be 31.8% and 87.5%, respectively. Conclusions: Urinary HER2/neu and ratio of urinary creatinine urine were significantly higher in patients with bladder cancer compared to healthy subjects. Large series and controlled studies are needed for use as a tumor marker.
In vivo tracking of genetically engineered, anti-HER2/neu directed natural killer cells to HER2/neu positive mammary tumors with magnetic resonance imaging

International Nuclear Information System (INIS)

Daldrup-Link, Heike E.; Meier, Reinhardt; Metz, Stephan; Settles, Marcus; Rummeny, Ernst J.; Rudelius, Martina; Piontek, Guido; Schlegel, Juergen; Piert, Morand; Uherek, Christoph; Wels, Winfried

2005-01-01

The purpose of this study is to optimize labeling of the human natural killer (NK) cell line NK-92 with iron-oxide-based contrast agents and to monitor the in vivo distribution of genetically engineered NK-92 cells, which are directed against HER2/neu receptors, to HER2/neu positive mammary tumors with magnetic resonance (MR) imaging. Parental NK-92 cells and genetically modified HER2/neu specific NK-92-scFv(FRP5)-zeta cells, expressing a chimeric antigen receptor specific to the tumor-associated ErbB2 (HER2/neu) antigen, were labeled with ferumoxides and ferucarbotran using simple incubation, lipofection and electroporation techniques. Labeling efficiency was evaluated by MR imaging, Prussian blue stains and spectrometry. Subsequently, ferucarbotran-labeled NK-92-scFv(FRP5)-zeta (n=3) or parental NK-92 cells were intravenously injected into the tail vein of six mice with HER2/neu-positive NIH 3T3 mammary tumors, implanted in the mammary fat pad. The accumulation of the cells in the tumors was monitored by MR imaging before and 12 and 24 h after cell injection (p.i.). MR data were correlated with histopathology. Both the parental NK-92 and the genetically modified NK-92-scFv(FRP5)-zeta cells could be labeled with ferucarbotran and ferumoxides by lipofection and electroporation, but not by simple incubation. The intracellular cytoplasmatic iron-oxide uptake was significantly higher after labeling with ferucarbotran than ferumoxides (P 6 NK-92-scFv(FRP5)-zeta cells into tumor-bearing mice, MR showed a progressive signal decline in HER2/neu-positive mammary tumors at 12 and 24 h (p.i.). Conversely, injection of 5 x 10 6 parental NK-92 control cells, not directed against HER2/neu receptors, did not cause significant signal intensity changes of the tumors. Histopathology confirmed an accumulation of the former, but not the latter cells in tumor tissue. The human natural killer cell line NK-92 can be efficiently labeled with clinically applicable iron-oxide contrast
In vivo tracking of genetically engineered, anti-HER2/neu directed natural killer cells to HER2/neu positive mammary tumors with magnetic resonance imaging

Energy Technology Data Exchange (ETDEWEB)

Daldrup-Link, Heike E. [UCSF Medical Center, Department of Radiology, San Francisco, CA (United States); Meier, Reinhardt; Metz, Stephan; Settles, Marcus; Rummeny, Ernst J. [Technical University Munich, Department of Radiology, Munich (Germany); Rudelius, Martina; Piontek, Guido; Schlegel, Juergen [Technical University Munich, Institute of Pathology, Division of Neuropathology, Munich (Germany); Piert, Morand [Technical University Munich, Department of Nuclear Medicine, Munich (Germany); Uherek, Christoph; Wels, Winfried [University of Frankfurt, Georg Speyer House, Frankfurt (Germany)

2005-01-01

The purpose of this study is to optimize labeling of the human natural killer (NK) cell line NK-92 with iron-oxide-based contrast agents and to monitor the in vivo distribution of genetically engineered NK-92 cells, which are directed against HER2/neu receptors, to HER2/neu positive mammary tumors with magnetic resonance (MR) imaging. Parental NK-92 cells and genetically modified HER2/neu specific NK-92-scFv(FRP5)-zeta cells, expressing a chimeric antigen receptor specific to the tumor-associated ErbB2 (HER2/neu) antigen, were labeled with ferumoxides and ferucarbotran using simple incubation, lipofection and electroporation techniques. Labeling efficiency was evaluated by MR imaging, Prussian blue stains and spectrometry. Subsequently, ferucarbotran-labeled NK-92-scFv(FRP5)-zeta (n=3) or parental NK-92 cells were intravenously injected into the tail vein of six mice with HER2/neu-positive NIH 3T3 mammary tumors, implanted in the mammary fat pad. The accumulation of the cells in the tumors was monitored by MR imaging before and 12 and 24 h after cell injection (p.i.). MR data were correlated with histopathology. Both the parental NK-92 and the genetically modified NK-92-scFv(FRP5)-zeta cells could be labeled with ferucarbotran and ferumoxides by lipofection and electroporation, but not by simple incubation. The intracellular cytoplasmatic iron-oxide uptake was significantly higher after labeling with ferucarbotran than ferumoxides (P<0.05). After intravenous injection of 5 x 10{sup 6} NK-92-scFv(FRP5)-zeta cells into tumor-bearing mice, MR showed a progressive signal decline in HER2/neu-positive mammary tumors at 12 and 24 h (p.i.). Conversely, injection of 5 x 10{sup 6} parental NK-92 control cells, not directed against HER2/neu receptors, did not cause significant signal intensity changes of the tumors. Histopathology confirmed an accumulation of the former, but not the latter cells in tumor tissue. The human natural killer cell line NK-92 can be efficiently
Numerical model experiments on the variation of the ocean-atmosphere carbon cycle during the last 2100 years: The impact of variations of the thermahaline oceanic circulation; Numerische Modellexperimente zur Veraenderung des Ozean-Atmosphaere-Kohlenstoffkreislaufes waehrend der letzten 21000 Jahre: Der Einfluss von Variationen der thermohalinen Ozeanzirkulation

Energy Technology Data Exchange (ETDEWEB)

Schulz, M

1998-03-01

In order to quantify the variability of the ocean-atmosphere carbon-cycle on glacial-interglacial time scales numerical biogeochemical models are required. In this work, a modeling approach consisting of a coupling between a newly developed biogeochemical box model (16 oceanic boxes) and a three-dimensional (3D) ocean general circulation model (OGCM) was pursued. The simulation of biogeochemical processes by the box model is almost identical to state of the art 3D-models. The global OGCM (4 x 6 , 12 layers) is forced by temperature and salinity fields obtained from paleoceanographic time-slice reconstructions, and model-derived wind fields. This model setup offers several advantages: (1) The box model is driven by waterfluxes that are diagnosed from the OGCM-fields. This approach results in hydrodynamically consistent water-fluxes for the box model. (2) The OGCM results guide the selection of appropriate box-configurations for time-slices having water-mass distributions that differ from the present-day situation. (3) The high numerical efficiency of the biogeochemical model component allows for a sufficient number of sensitivity experiments. (4) Based on paleoceanographic information, the boundary conditions of the box model can be combined as a function of time in order to conduct time-dependent experiments with the box model. (orig.) [Deutsch] Die globale Quantifizierung von Veraenderungen des Ozean-Atmosphaere-Kohlenstoffkreislaufes auf glazial-interglazialen Zeitskalen erfordert den Einsatz numerischer biogeochemischer Modelle. Im Rahmen dieser Arbeit wurde hierzu ein Modellansatz gewaehlt, der aus der Kopplung eines neu entwickelten biogeochemischen Boxmodells (16 ozeanische Boxen) an ein dreidimensionales (3D) allgemeines Ozean-Zirkulationsmodell (OGCM) besteht. Die Simulation biogeochemischer Prozesse erfolgt im Boxmodell analog zu hochentwickelten 3D-Modellen. Das globale (4 x 6 , 12 Schichten) Ozeanmodell wird mit Temperatur- und Salzgehaltsfeldern, die
Entwicklung eines kontinuierlichen Verfahrens zur enzymkatalysierten Synthese eines strukturierten Triglycerides

OpenAIRE

Stadler, Hans-Gerhard

2005-01-01

Ausgangspunkt für die in der vorliegenden Arbeit durchgeführten Entwicklung eines kontinuierlichen Verfahrens zur Synthese des strukturierten Triglycerides 1,3-Oleyl-2-palmitoylglycerin war die von Schmid [Schmid 1999] entwickelte lipase-katalysierte Zwei-Schritt-Synthese für strukturierte Triglyceride vom Typ ABA [European Patent Application; EP 0 882 797 A2]. In der ersten Reaktionsstufe dieser zweistufigen Umesterung wird in einer Folgereaktion das Substrat Tripalmitin mit Hilfe ein...
File list: Oth.Neu.10.BMI1.AllCell [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: Oth.Neu.05.BMI1.AllCell [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: Oth.Neu.50.BMI1.AllCell [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: Oth.Neu.20.BMI1.AllCell [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Oth.Neu.20.BMI1.AllCell hg19 TFs and others BMI1 Neural SRX109477,SRX109480,SRX1094...82,SRX109479 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/Oth.Neu.20.BMI1.AllCell.bed ...
File list: NoD.Neu.10.AllAg.Midbrain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available NoD.Neu.10.AllAg.Midbrain mm9 No description Neural Midbrain SRX002662,ERX102458,ER...X102459,ERX102460,ERX102461 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/NoD.Neu.10.AllAg.Midbrain.bed ...
File list: NoD.Neu.20.AllAg.Midbrain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available NoD.Neu.20.AllAg.Midbrain mm9 No description Neural Midbrain ERX102458,ERX102459,ER...X102460,ERX102461,SRX002662 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/NoD.Neu.20.AllAg.Midbrain.bed ...
File list: NoD.Neu.50.AllAg.Midbrain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available NoD.Neu.50.AllAg.Midbrain mm9 No description Neural Midbrain ERX102458,ERX102459,ER...X102460,ERX102461,SRX002662 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/NoD.Neu.50.AllAg.Midbrain.bed ...
Unique nuclear localization of Nile tilapia (Oreochromis niloticus) Neu4 sialidase is regulated by nuclear transport receptor importin α/β.

Science.gov (United States)

Honda, Akinobu; Chigwechokha, Petros Kingstone; Kamada-Futagami, Yuko; Komatsu, Masaharu; Shiozaki, Kazuhiro

2018-06-01

Sialidase catalyzes the removal of sialic acids from glycoconjugates. Different from Neu1 and Neu3 sialidases, Neu4 enzymatic properties such as substrate specificity and subcellular localization are not well-conserved among vertebrates. In fish only zebrafish and medaka neu4 genes have been cloned and their polypeptides have been characterized so far. Thus, characterization of Neu4 from other fish species is necessary to evaluate Neu4 physiological functions. Here, Nile tilapia was chosen for the characterization of Neu4 polypeptide considering that it is one of the major cultured fish all over the world and that its genomic sequences are now available. Coding DNA sequence of tilapia Neu4 was identified as 1,497 bp and its recombinant protein showed broad substrate specificity and optimal sialidase enzyme activity pH at 4.0. Neu4 activity was sustained even in neutral and alkali pH. Interestingly, immunofluorescence analysis revealed that major subcellular localization of tilapia Neu4 was nuclear, quite distinct from zebrafish (ER) and medaka Neu4 (lysosome). Bioinformatic analysis showed the existence of putative nuclear localization signal (NLS) in tilapia Neu4. In general, it is known that importin families bind to several proteins via NLS and transfer them into nucleus. Therefore, to determine the involvement of putative NLS in Neu4 nuclear localization, Neu4 mutant deleting NLS was constructed and expressed in cultured cells. As a result, NLS deletion significantly diminished the nuclear localization. Furthermore, treatment of importazole, interrupter of binding importin β and RanGTP, significantly suppressed Neu4 nuclear localization. In summary, tilapia Neu4 is a unique sialidase localized at nucleus and its transport system into nucleus is regulated by importin. Copyright © 2018 Elsevier B.V. and Société Française de Biochimie et Biologie Moléculaire (SFBBM). All rights reserved.
NeuRad detector prototype pulse shape study

Science.gov (United States)

Muzalevsky, I.; Chudoba, V.; Belogurov, S.; Kiselev, O.; Bezbakh, A.; Fomichev, A.; Krupko, S.; Slepnev, R.; Kostyleva, D.; Gorshkov, A.; Ovcharenko, E.; Schetinin, V.

2018-04-01

The EXPERT setup located at the Super-FRS facility, the part of the FAIR complex in Darmstadt, Germany, is intended for investigation of properties of light exotic nuclei. One of its modules, the high granularity neutron detector NeuRad assembled from a large number of the scintillating fiber is intended for registration of neutrons emitted by investigated nuclei in low-energy decays. Feasibility of the detector strongly depends on its timing properties defined by the spatial distribution of ionization, light propagation inside the fibers, light emission kinetics and transition time jitter in the multi-anode photomultiplier tube. The first attempt of understanding the pulse formation in the prototype of the NeuRad detector by comparing experimental results and Monte Carlo (MC) simulations is reported in this paper.
File list: ALL.Neu.05.AllAg.Induced_neural_progenitors [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available ALL.Neu.05.AllAg.Induced_neural_progenitors mm9 All antigens Neural Induced neural progeni....biosciencedbc.jp/kyushu-u/mm9/assembled/ALL.Neu.05.AllAg.Induced_neural_progenitors.bed ...

File list: ALL.Neu.10.AllAg.Induced_neural_progenitors [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available ALL.Neu.10.AllAg.Induced_neural_progenitors mm9 All antigens Neural Induced neural progeni....biosciencedbc.jp/kyushu-u/mm9/assembled/ALL.Neu.10.AllAg.Induced_neural_progenitors.bed ...
File list: InP.Neu.10.AllAg.Neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.Neu.10.AllAg.Neurons mm9 Input control Neural Neurons SRX798995,SRX798994,SRX79...9006,SRX798993,SRX799007,SRX799005 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Neu.10.AllAg.Neurons.bed ...
File list: InP.Neu.50.AllAg.Neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.Neu.50.AllAg.Neurons mm9 Input control Neural Neurons SRX799007,SRX798994,SRX79...9006,SRX798993,SRX798995,SRX799005 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Neu.50.AllAg.Neurons.bed ...
File list: InP.Neu.20.AllAg.Neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.Neu.20.AllAg.Neurons mm9 Input control Neural Neurons SRX799007,SRX798994,SRX79...9006,SRX799005,SRX798995,SRX798993 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Neu.20.AllAg.Neurons.bed ...
File list: InP.Neu.20.AllAg.Forebrain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.Neu.20.AllAg.Forebrain mm9 Input control Neural Forebrain SRX377677,SRX377675,S...RX377679,SRX377673,SRX669236,SRX377671 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Neu.20.AllAg.Forebrain.bed ...
File list: Pol.Neu.10.AllAg.Cortical_neuron [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Pol.Neu.10.AllAg.Cortical_neuron mm9 RNA polymerase Neural Cortical neuron SRX21773...5,SRX759296,SRX217736,SRX759295,SRX759293,SRX759294 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Pol.Neu.10.AllAg.Cortical_neuron.bed ...
File list: Pol.Neu.20.AllAg.Cortical_neuron [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Pol.Neu.20.AllAg.Cortical_neuron mm9 RNA polymerase Neural Cortical neuron SRX75929...5,SRX759296,SRX217735,SRX759294,SRX759293,SRX217736 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Pol.Neu.20.AllAg.Cortical_neuron.bed ...
File list: Pol.Neu.05.AllAg.Cortical_neuron [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Pol.Neu.05.AllAg.Cortical_neuron mm9 RNA polymerase Neural Cortical neuron SRX21773...5,SRX217736,SRX759296,SRX759293,SRX759294,SRX759295 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Pol.Neu.05.AllAg.Cortical_neuron.bed ...
File list: Pol.Neu.50.AllAg.Cortical_neuron [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Pol.Neu.50.AllAg.Cortical_neuron mm9 RNA polymerase Neural Cortical neuron SRX75929...5,SRX759296,SRX759293,SRX759294,SRX217735,SRX217736 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Pol.Neu.50.AllAg.Cortical_neuron.bed ...
File list: InP.Neu.10.AllAg.Forebrain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.Neu.10.AllAg.Forebrain mm9 Input control Neural Forebrain SRX377679,SRX669236,S...RX377677,SRX377675,SRX377673,SRX377671 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Neu.10.AllAg.Forebrain.bed ...
File list: InP.Neu.50.AllAg.Forebrain [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.Neu.50.AllAg.Forebrain mm9 Input control Neural Forebrain SRX377679,SRX377675,S...RX377677,SRX377673,SRX669236,SRX377671 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Neu.50.AllAg.Forebrain.bed ...
File list: InP.Neu.05.AllAg.Hippocampus [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.Neu.05.AllAg.Hippocampus mm9 Input control Neural Hippocampus SRX769389,SRX2484...70,SRX216313,SRX517457,SRX248471,SRX517454 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Neu.05.AllAg.Hippocampus.bed ...
File list: InP.Neu.10.AllAg.Hippocampus [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.Neu.10.AllAg.Hippocampus mm9 Input control Neural Hippocampus SRX248470,SRX7693...89,SRX216313,SRX517457,SRX517454,SRX248471 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Neu.10.AllAg.Hippocampus.bed ...
File list: InP.Neu.20.AllAg.Hippocampus [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.Neu.20.AllAg.Hippocampus mm9 Input control Neural Hippocampus SRX248470,SRX7693...89,SRX517454,SRX517457,SRX216313,SRX248471 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Neu.20.AllAg.Hippocampus.bed ...
File list: InP.Neu.50.AllAg.Hippocampus [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.Neu.50.AllAg.Hippocampus mm9 Input control Neural Hippocampus SRX248470,SRX7693...89,SRX517454,SRX517457,SRX216313,SRX248471 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Neu.50.AllAg.Hippocampus.bed ...
The mannosylated extracellular domain of Her2/neu produced in P. pastoris induces protective antitumor immunity

International Nuclear Information System (INIS)

Dimitriadis, Alexios; Gontinou, Chrysanthi; Baxevanis, Constantin N; Mamalaki, Avgi

2009-01-01

Her2/neu is overexpressed in various human cancers of epithelial origin and is associated with increased metastatic potential and poor prognosis. Several attempts have been made using the extracellular domain of Her2/neu (ECD/Her2) as a prophylactic vaccine in mice with no success in tumor prevention. The extracellular domain of Her2/neu (ECD/Her2) was expressed in yeast P. pastoris, in a soluble highly mannosylated form. The immune response of the immunization with this recombinant ECD/Her2 was analyzed using immunoprecipitation and western blot analysis, proliferation and cytotoxicity assays as well as specific tumor growth assays. Mannosylated ECD/Her2 elicited a humoral response with HER2/neu specific antibodies in vaccinated mice, which were able to reduce the proliferation rate of cancer cells in vitro. Moreover, it elicited a cellular response with Her2/neu-specific CTL capable of lysing tumor cells, in vitro. When immunized Balb/c and HHD mice were challenged with Her2/neu-overexpressing cells, tumor growth was inhibited. Here we report on the efficacy of the extracellular domain of human Her2/neu produced in yeast P. pastoris, which confers mannosylation of the protein, to act as a potent anti-tumor vaccine against Her2/neu overexpressing tumors. Specific cellular and humoral responses were observed as well as efficacy
File list: Unc.Neu.05.AllAg.Neural_progenitor_cells [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.05.AllAg.Neural_progenitor_cells mm9 Unclassified Neural Neural progenitor ...cells http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.05.AllAg.Neural_progenitor_cells.bed ...
File list: Unc.Neu.20.AllAg.Neural_progenitor_cells [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.20.AllAg.Neural_progenitor_cells mm9 Unclassified Neural Neural progenitor ...cells http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.20.AllAg.Neural_progenitor_cells.bed ...
File list: His.Neu.05.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.05.AllAg.Superior_Cervical_Ganglion mm9 Histone Neural Superior Cervical Ganglion... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/His.Neu.05.AllAg.Superior_Cervical_Ganglion.bed ...
File list: His.Neu.20.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.20.AllAg.Superior_Cervical_Ganglion mm9 Histone Neural Superior Cervical Ganglion... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/His.Neu.20.AllAg.Superior_Cervical_Ganglion.bed ...

File list: Unc.Neu.20.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.20.AllAg.Superior_Cervical_Ganglion mm9 Unclassified Neural Superior Cervical Ganglion... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.20.AllAg.Superior_Cervical_Ganglion.bed ...
File list: Unc.Neu.50.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.50.AllAg.Superior_Cervical_Ganglion mm9 Unclassified Neural Superior Cervical Ganglion... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.50.AllAg.Superior_Cervical_Ganglion.bed ...
File list: Unc.Neu.05.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.05.AllAg.Superior_Cervical_Ganglion mm9 Unclassified Neural Superior Cervical Ganglion... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.05.AllAg.Superior_Cervical_Ganglion.bed ...
File list: Unc.Neu.50.AllAg.Induced_neural_progenitors [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.50.AllAg.Induced_neural_progenitors mm9 Unclassified Neural Induced neural ...progenitors http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.50.AllAg.Induced_neural_progenitors.bed ...
File list: Unc.Neu.10.AllAg.Induced_neural_progenitors [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.10.AllAg.Induced_neural_progenitors mm9 Unclassified Neural Induced neural ...progenitors http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.10.AllAg.Induced_neural_progenitors.bed ...
File list: Unc.Neu.05.AllAg.Induced_neural_progenitors [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.05.AllAg.Induced_neural_progenitors mm9 Unclassified Neural Induced neural ...progenitors http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.05.AllAg.Induced_neural_progenitors.bed ...
File list: Unc.Neu.50.AllAg.Cerebellar_granule_neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.50.AllAg.Cerebellar_granule_neurons mm9 Unclassified Neural Cerebellar granule neurons... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.50.AllAg.Cerebellar_granule_neurons.bed ...
File list: His.Neu.05.AllAg.Cerebellar_granule_neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.05.AllAg.Cerebellar_granule_neurons mm9 Histone Neural Cerebellar granule neurons... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/His.Neu.05.AllAg.Cerebellar_granule_neurons.bed ...
File list: His.Neu.50.AllAg.Cerebellar_granule_neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.50.AllAg.Cerebellar_granule_neurons mm9 Histone Neural Cerebellar granule neurons... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/His.Neu.50.AllAg.Cerebellar_granule_neurons.bed ...
File list: His.Neu.10.AllAg.Cerebellar_granule_neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.10.AllAg.Cerebellar_granule_neurons mm9 Histone Neural Cerebellar granule neurons... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/His.Neu.10.AllAg.Cerebellar_granule_neurons.bed ...
File list: Unc.Neu.20.AllAg.Cerebellar_granule_neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.20.AllAg.Cerebellar_granule_neurons mm9 Unclassified Neural Cerebellar granule neurons... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.20.AllAg.Cerebellar_granule_neurons.bed ...
File list: Unc.Neu.10.AllAg.Cerebellar_granule_neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.10.AllAg.Cerebellar_granule_neurons mm9 Unclassified Neural Cerebellar granule neurons... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.10.AllAg.Cerebellar_granule_neurons.bed ...
File list: His.Neu.20.AllAg.Cerebellar_granule_neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.20.AllAg.Cerebellar_granule_neurons mm9 Histone Neural Cerebellar granule neurons... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/His.Neu.20.AllAg.Cerebellar_granule_neurons.bed ...
File list: Pol.Neu.50.RNA_Polymerase_III.AllCell [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Pol.Neu.50.RNA_Polymerase_III.AllCell mm9 RNA polymerase RNA Polymerase III Neural ...http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Pol.Neu.50.RNA_Polymerase_III.AllCell.bed ...
File list: Unc.Neu.20.AllAg.Induced_neural_progenitors [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.20.AllAg.Induced_neural_progenitors mm9 Unclassified Neural Induced neural progeni...tors http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.20.AllAg.Induced_neural_progenitors.bed ...
File list: DNS.Neu.50.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available DNS.Neu.50.AllAg.Superior_Cervical_Ganglion mm9 DNase-seq Neural Superior Cervical Ganglion... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/DNS.Neu.50.AllAg.Superior_Cervical_Ganglion.bed ...
File list: DNS.Neu.05.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available DNS.Neu.05.AllAg.Superior_Cervical_Ganglion mm9 DNase-seq Neural Superior Cervical Ganglion... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/DNS.Neu.05.AllAg.Superior_Cervical_Ganglion.bed ...
File list: Pol.Neu.05.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Pol.Neu.05.AllAg.Superior_Cervical_Ganglion mm9 RNA polymerase Neural Superior Cervical Ganglion... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Pol.Neu.05.AllAg.Superior_Cervical_Ganglion.bed ...
File list: Pol.Neu.20.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Pol.Neu.20.AllAg.Superior_Cervical_Ganglion mm9 RNA polymerase Neural Superior Cervical Ganglion... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Pol.Neu.20.AllAg.Superior_Cervical_Ganglion.bed ...
File list: DNS.Neu.10.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available DNS.Neu.10.AllAg.Superior_Cervical_Ganglion mm9 DNase-seq Neural Superior Cervical Ganglion... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/DNS.Neu.10.AllAg.Superior_Cervical_Ganglion.bed ...

File list: Pol.Neu.10.AllAg.Superior_Cervical_Ganglion [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Pol.Neu.10.AllAg.Superior_Cervical_Ganglion mm9 RNA polymerase Neural Superior Cervical Ganglion... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Pol.Neu.10.AllAg.Superior_Cervical_Ganglion.bed ...
File list: His.Neu.50.AllAg.Nerve_Sheath_Neoplasms [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.50.AllAg.Nerve_Sheath_Neoplasms mm9 Histone Neural Nerve Sheath Neoplasms h...ttp://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/His.Neu.50.AllAg.Nerve_Sheath_Neoplasms.bed ...
File list: His.Neu.05.AllAg.Nerve_Sheath_Neoplasms [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.05.AllAg.Nerve_Sheath_Neoplasms mm9 Histone Neural Nerve Sheath Neoplasms h...ttp://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/His.Neu.05.AllAg.Nerve_Sheath_Neoplasms.bed ...
File list: DNS.Neu.10.AllAg.Nerve_Sheath_Neoplasms [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available DNS.Neu.10.AllAg.Nerve_Sheath_Neoplasms mm9 DNase-seq Neural Nerve Sheath Neoplasms... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/DNS.Neu.10.AllAg.Nerve_Sheath_Neoplasms.bed ...
File list: Unc.Neu.50.AllAg.Nerve_Sheath_Neoplasms [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.50.AllAg.Nerve_Sheath_Neoplasms mm9 Unclassified Neural Nerve Sheath Neopla...sms http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.50.AllAg.Nerve_Sheath_Neoplasms.bed ...
File list: DNS.Neu.05.AllAg.Nerve_Sheath_Neoplasms [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available DNS.Neu.05.AllAg.Nerve_Sheath_Neoplasms mm9 DNase-seq Neural Nerve Sheath Neoplasms... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/DNS.Neu.05.AllAg.Nerve_Sheath_Neoplasms.bed ...
File list: Unc.Neu.05.AllAg.Nerve_Sheath_Neoplasms [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Unc.Neu.05.AllAg.Nerve_Sheath_Neoplasms mm9 Unclassified Neural Nerve Sheath Neopla...sms http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Unc.Neu.05.AllAg.Nerve_Sheath_Neoplasms.bed ...
File list: DNS.Neu.50.AllAg.Nerve_Sheath_Neoplasms [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available DNS.Neu.50.AllAg.Nerve_Sheath_Neoplasms mm9 DNase-seq Neural Nerve Sheath Neoplasms... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/DNS.Neu.50.AllAg.Nerve_Sheath_Neoplasms.bed ...
File list: DNS.Neu.20.AllAg.Nerve_Sheath_Neoplasms [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available DNS.Neu.20.AllAg.Nerve_Sheath_Neoplasms mm9 DNase-seq Neural Nerve Sheath Neoplasms... http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/DNS.Neu.20.AllAg.Nerve_Sheath_Neoplasms.bed ...
File list: His.Neu.20.AllAg.Nerve_Sheath_Neoplasms [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.20.AllAg.Nerve_Sheath_Neoplasms mm9 Histone Neural Nerve Sheath Neoplasms h...ttp://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/His.Neu.20.AllAg.Nerve_Sheath_Neoplasms.bed ...
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Fallbericht: Seltene Raumforderungen der Leiste in der klinischen Erscheinung inguinaler Hernien: eine seminomatöse Lymphknotenmetastase und ein Liposarkom des Samenstranges

Directory of Open Access Journals (Sweden)

Burger M

2005-01-01

Full Text Available Einleitung: Wir berichten über eine seminomatöse inguinale Lymphknotenmetastase und ein Liposarkom des Samenstranges, die sich klinisch als eine inguinale Hernie präsentierten. Kasuistik: Fall 1: Ein 53jähriger Patient wurde unter der Annahme einer inguinalen Hernie links in einer chirurgischen Abteilung operiert. Es fand sich eine Raumforderung, welche in der Schnellschnittuntersuchung den Befund einer seminomatösen Lymphknotenmetastase ergab. In der folgenden Abklärung ergab sich ein linksseitiges pT2-Seminom. Anamnestisch wurde vor 26 Jahren eine inguinale Varikozelektomie links vorgenommen. Fall 2: Ein 61jähriger Patient stellte sich mit einer schmerzlosen Raumforderung der rechten Leiste vor, die klinisch als inguinale Hernie imponierte und seit drei Jahren größenprogredient war. Die Ultraschall- und MRT-Befunde wurden als eine inguinale Hernie mit einem Peritonealfett enthaltenden Bruchsack gedeutet. Intraoperativ fand sich ein Liposarkom des Samenstranges. Schlußfolgerung: Trotz der Häufigkeit inguinaler Herniotomien sind überraschende maligne Raumforderungen selten. Man sollte diese Möglichkeit aber bei transskrotalen Eingriffen in der Anamnese und bei nicht eindeutig einzuordnenden Befunden differentialdiagnostisch bedenken. Inguinale Lymphknotenmetastasen testikulärer Neoplasien sind selten, in der Literatur ist ein eindeutiger Zusammenhang mit Eingriffen im Skrotal- und Leistenbereich beschrieben. Die klinische Erscheinung einer solchen als Leistenhernie ist bisher noch nicht beschrieben worden. Liposarkome des Samenstranges sind ebenfalls selten. Therapeutisch sollte eine radikale chirurgische Exzision und in Fällen unklarer Absetzungsränder eine Radiatio erfolgen. Lokalrezidive treten häufig und eventuell auch spät auf.
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Entwicklung von Cysteinproteaseinhibitoren - ein klassischer und ein kombinatorischer Ansatz zur Inhibitoroptimierung

OpenAIRE

Machon, Uwe Rainer

2009-01-01

Ziel der Dissertation „Entwicklung von Cysteinproteaseinhibitoren – ein klassischer und ein kombinatorischer Ansatz zur Inhibitoroptimierung“ war die Optimierung von neuen Inhibitoren von Falcipain-2 und Rhodesain als neue potentielle Wirkstoffe gegen Malaria bzw. die Schlafkrankheit über zwei verschiedene Methoden. Es handelt sich hierbei um einen klassischen und einen kombinatorischen Ansatz. Der klassische Ansatz basiert auf einer Struktur, deren Aktivität per Zufall entdeckt wurde. In Scr...
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Entwicklung von Antikörper-Mikroarray : von Biophysik der Mikrospot-Reaktion bis zur Hochdurchsatzanalyse der Proteine

OpenAIRE

Kusnezow, Wlad

2007-01-01

Obwohl Protein-Mikroarrays ursprünglich aus dem gut entwickelten und fest etablierten DNA-Pendant entstanden sind, repräsentierte jedoch die Umstellung der Mikroarray-Technik von der DNA- auf die Proteinanalyse aufgrund der enormen physikalisch-chemischen Variabilität der Proteine, deren relativ niedrigen Stabilität und der komplexen Mikrospot-Kinetik eine große technologische Herausforderung. Deshalb setzt das Vorhaben, die Technik der Antikörper–Mikroarrays von ihrem konzeptuellen Zustand a...
File list: InP.Neu.20.AllAg.Cerebellum [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: InP.Neu.05.AllAg.Cerebellum [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: InP.Neu.10.AllAg.Cerebellum [Chip-atlas[Archive

Lifescience Database Archive (English)

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File list: InP.Neu.50.AllAg.Cerebellum [Chip-atlas[Archive

Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Palmitate-induced ER stress increases trastuzumab sensitivity in HER2/neu-positive breast cancer cells

International Nuclear Information System (INIS)

Baumann, Jan; Wong, Jason; Sun, Yan; Conklin, Douglas S.

2016-01-01

HER2/neu-positive breast cancer cells have recently been shown to use a unique Warburg-like metabolism for survival and aggressive behavior. These cells exhibit increased fatty acid synthesis and storage compared to normal breast cells or other tumor cells. Disruption of this synthetic process results in apoptosis. Since the addition of physiological doses of exogenous palmitate induces cell death in HER2/neu-positive breast cancer cells, the pathway is likely operating at its limits in these cells. We have studied the response of HER2/neu-positive breast cancer cells to physiological concentrations of exogenous palmitate to identify lipotoxicity-associated consequences of this physiology. Since epidemiological data show that a diet rich in saturated fatty acids is negatively associated with the development of HER2/neu-positive cancer, this cellular physiology may be relevant to the etiology and treatment of the disease. We sought to identify signaling pathways that are regulated by physiological concentrations of exogenous palmitate specifically in HER2/neu-positive breast cancer cells and gain insights into the molecular mechanism and its relevance to disease prevention and treatment. Transcriptional profiling was performed to assess programs that are regulated in HER2-normal MCF7 and HER2/neu-positive SKBR3 breast cancer cells in response to exogenous palmitate. Computational analyses were used to define and predict functional relationships and identify networks that are differentially regulated in the two cell lines. These predictions were tested using reporter assays, fluorescence-based high content microscopy, flow cytometry and immunoblotting. Physiological effects were confirmed in HER2/neu-positive BT474 and HCC1569 breast cancer cell lines. Exogenous palmitate induces functionally distinct transcriptional programs in HER2/neu-positive breast cancer cells. In the lipogenic HER2/neu-positive SKBR3 cell line, palmitate induces a G2 phase cell cycle delay and
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File list: His.Neu.05.AllAg.Fetal_brain [Chip-atlas[Archive

Lifescience Database Archive (English)

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If science does create more than knowledge. A congress is asking for 'education by science'; Wenn Wissenschaft mehr als Wissen schafft. Ein Kongress fragt nach 'Bildung durch Wissenschaft'

Energy Technology Data Exchange (ETDEWEB)

Nuissl, E. (ed.)

2002-07-01

The role of science in the development of the so-called 'knowledge society' was investigated at this interdisciplinary congress. Three problem areas were identified: 1. Science itself must constantly review its own ethical fundamentals and investigate and extend its ability to keep a dialogue running. 2. Society is asked to provide an ethical and moral orientation for dealing with newly acquired knowledge and to define the social standing of science. 3. Each and every individual must work on maintaining and extending his or her level of knowledge in order to cope with everyday life and perform social functions. [German] Ziel des Kongresses ''Bildung durch Wissenschaft'' war es, im interdisziplinaeren Austausch die Rolle der Wissenschaft bei der Entwicklung der so genannten ''Wissensgesellschaft'' zu eroertern. Der enorme Wissenszuwachs des vergangenen Jahrhunderts bedeutet eine Zunahme des ''Machbaren'', von dessen positiven wie negativen Folgen die Gesellschaft und der Einzelne gleichermassen betroffen ist. Das gilt gerade fuer diejenigen Technologien und Wissensbestaende, die im Alltag von Bedeutung sind. Der Kongress beschaeftigte sich mit diesen Entwicklungen und mit den Problemen, die sich daraus ergeben. Der erste Problemkreis betrifft die Wissenschaft selbst: Sie muss sich ihrer eigenen ethischen Grundlagen wieder neu vergewissern, ihre Dialogfaehigkeit ueberpruefen und erweitern. Ein zweiter Problemkreis ist auf Seiten der Oeffentlichkeit auszumachen: Die Gesellschaft wird ethische und moralische Orientierungen fuer den Umgang mit dem neu erworbenen Wissen schaffen und grundsaetzlich den gesellschaftlichen Stellenwert der Wissenschaft bestimmen muessen. Der dritte Problemkreis stellt sich dem Einzelnen: Jeder ist gefordert, kontinuierlich sein Wissensniveau zu erhalten und zu erweitern, um den Alltag bewaeltigen und gesellschaftliche Aufgaben wahrnehmen zu koennen. (orig.)
Problembasiertes kollaboratives Lernen mit virtuellen Patienten in der Kinderheilkunde: ein Beispiel aus der Ausbildungspraxis

Directory of Open Access Journals (Sweden)

Sostmann, Kai

2009-02-01

Full Text Available Der studentische Unterricht in der Kinderheilkunde an der Charité hat seit 1999 mehrere Umstrukturierungen durchlaufen. Mit der Einführung der neuen ärztlichen Approbationsordnung 2004 im Regelstudiengang (RSG und dem Modellcurriculum Reformstudiengang Medizin (RSM 1999 müssen zwei Curricula parallel neu konzipiert und gepflegt werden. Durch den Schwerpunkt Unterricht am Krankenbett (UaK im RSG ergaben sich neue didaktische, pädagogische und infrastrukturelle Anforderungen. Die technische und inhaltliche Weiterentwicklung der Einsatzmöglichkeiten elektronischer Lernszenarien durch e-Learning im Rahmen des BMBF-geförderten Projektes ELWIS-MED, ermöglichte die Erprobung der curricularen Implementierung von e-Learning-Modulen im Pflichtunterricht. Der UaK wurde durch die Bearbeitung kinderheilkundlicher elektronischer Lernfälle online ergänzt. Die Studierenden sollten tutoriell betreute Diskussionen zu fachlichen Aufgabenstellungen online führen. In der ersten Erprobungsstufe wurde der Einsatz der Diskussionsforen in Verbindung mit den Lernfällen von den Studierenden und Lehrenden als sinnvolle Ergänzung betrachtet. In zukünftigen Einsatzszenarien sollte eine Messung des studentischen Lernerfolgs mit dieser Methode erfolgen.
Immunohistochemical expression of HER-2/neu in patients with lung carcinoma and its prognostic significance

International Nuclear Information System (INIS)

Petrusevska, G.; Banev, S.; Ilievska-Poposka, B.; Smickova, S.; Spirovski, Z.

2004-01-01

Background. The HER-2 protein or p185her2 is a membrane receptor with tyrosine kinase activity encoded by HER-2/neu gene. Overexpression of HER-2/neu has been observed in many human cancers, including lung cancer. In the study, the expression of HER-2 protein is determined in the spectrum of lung cancer (adenocarcinoma, squamous cell carcinoma and small cell carcinoma). Patients and methods. The study population consisted of two groups: 19 patients that had undergone surgical treatment and 10 patients that had undergone fiber-optic bronchoscopy and biopsy for primary diagnosis only. Tissue specimens were neutral formaldehyde-fixed and paraffin-embedded. Standard histochemical and immunohistochemical staining were used for diagnosis. Expression of HER-2/neu protein was determined by immunohistochemical staining with Hercep Test (DAKO). The results were graded 0-1 as negative and 2-3 as positive. Results. Overall incidence of HER-2/neu overexpression was 34.4% (10 of 29). Higher incidence was found in the patients with adenocarcinoma 45.4% (5 of 11). In squamous cell carcinoma and small cell carcinoma, the overexpression incidence was 30.7% (4 of 13) and 20% (1 of 5), respectively. No statistically significant difference was seen given the age and gender. HER-2/neu overexpression was more pronounced in the patients with advanced tumour: all patients with squamous cell carcinoma and HER-2/neu overexpression had stage IIIB and stage IV disease, while 80 % of adenocarcinoma patients with HER-2/neu overexpression had stage IIIA and IIIB disease. Conclusions. These results are satisfactory and encourage us to continue this work in the follow-up study to evaluate HER-2/neu role as predictive and prognostic factor for the patients with lung cancer. (author)
Neu-Laxova syndrome in an appropriate for gestational age newborn

Directory of Open Access Journals (Sweden)

Dilli Dilek

2008-01-01

Full Text Available Neu-Laxova syndrome is a rare lethal congenital disorder involving multiple systems. Intrauterine growth retardation, ichthyosis, microcephaly, abnormal facial findings, and limb contractures are its key features. We present a case of Neu-Laxova syndrome in a male appropriate for gestational age (AGA newborn with characteristic features including ichthyosis, microcephaly, severe ectropion, rudimentary ears, eclabion, limb contractures, and hypoplastic genitalia. The patient was born at 38 weeks of gestation to consanguinous Turkish parents. The mother was a 20-year-old primi gravida with lack of prenatal follow-up. Therefore, the case was diagnosed postnatally, and he died 5 days later. Because of the autosomal recessive inheritance of Neu-Laxova syndrome, in countries with high rates of consanguineous marriage, such as Turkey, physicians have to know this syndrome, and serial prenatal ultrasound examinations with genetic counseling should be performed on pregnant women at high risk. To the best of our knowledge, this is the first case described in an AGA newborn.

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Une lecture de Eine Übertragung de Wolfgang Hilbig à la lumière de Paul Ricœur.

Directory of Open Access Journals (Sweden)

Bénédicte Terrisse

2009-12-01

Full Text Available L’objet de cette étude est de comprendre le roman de Wolfgang Hilbig (1941-2007 Eine Übertragung (1989 à partir de La Métaphore vive de Ricœur et de l’analyse des différents sens du titre du roman (métaphore, transfert, transposition. L’esthétique métaphorique, qui rappelle en de nombreux points l’esthétique mallarméenne, permet à l’auteur de réinterpréter et redécrire la réalité est-allemande en même temps que sa propre biographie. Par le recours au mythe et à l’intertextualité, ces dernières sont assimilées à la modernité esthétique, si bien que la RDA devient le territoire de la littérature moderne. Par la métaphore, Hilbig se réapproprie une réalité définie jusqu’alors par un pouvoir discrétionnaire.Ziel dieses Textes ist es, den Roman Eine Übertragung (1989 von Wolfgang Hilbig (1941-2007 mit Hilfe von Ricœurs La Métaphore vive sowie der Analyse der verschiedenen Titelbedeutungen (als Metapher, Übertragung oder Übersetzung zu verstehen. Diese Ästhetik der Metapher, die in mancher Hinsicht an die Mallarmésche erinnert, ermöglicht es dem Autor, zugleich die Realität der DDR und seine eigene Biographie neu zu interpretieren und zu beschreiben. Durch Rekurs auf Mythos und Intertextualität werden sie der ästhetischen Moderne gleichgesetzt, sodass die DDR zum Ort der Literatur der Moderne wird. Auf diese Weise gelingt es Hilbig, sich eine bis dahin von der politischen Macht dekretierte Wirklichkeit wieder anzueignen.
Deciphering the assembly of multi-segment genome complexes in influenza A virus

OpenAIRE

Prisner, Simon

2017-01-01

Influenza A besitzt ein segmentiertes, achtsträngiges Genom in negativer Orientierung. Die einzelnen Segmente sind in virale Ribonukleoproteinkomplexe (vRNPs) verpackt. Genomische Segmentierung erlaubt es Influenza, zwischen verschiedenen Stämmen Reassortierung zu betreiben, was zur Entstehung von hochgradig virulenten und potentiell pandemischen neuen Stämmen führen kann. Die Existenz eines Packungsmechanismus wird vermutet, der sicherstellt dass exakt ein Segment jeden Typs in neu knospe...
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Lifescience Database Archive (English)

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File list: ALL.Neu.10.AllAg.Cerebellar_granule_neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

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Lifescience Database Archive (English)

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Theoretische Grundlagen qualitativer Marktforschung – ein Überblick und eine integrative Perspektive

OpenAIRE

Frank, Dirk; Riedl, Peter

2004-01-01

Die ökonomische Bedeutung qualitativer Forschung nahm in den vergangenen Jahrzehnten kontinuierlich zu. Als eine der Hauptströmungen in der "Forschungsindustrie" stellt sie nicht nur ein wertvolles Erhebungs- und Analyseinstrumentarium zur Generierung grundlegender Einsichten in das Erleben und Verhalten von Verbrauchern dar, sondern bildet zugleich einen essentiellen Teil der jährlich generierten Umsätze von Forschungsinstituten. Hieraus folgt, dass es für die Anbieter qualitativer Forschung...
Ein Kredit für Weihnachtsbaumkugeln

Science.gov (United States)

Tutsch, Sina

Eine Mathematikerin aus dem DFG-Forschungszentrum Matheon arbeitet an Methoden zur dreidimensionalen Visualisierung. Sie hat die Geschäftsidee, Weihnachtsbaumkugeln mit bewegten Hologrammen herzustellen, die sich individuell gestalten lassen, und plant eine Existenzgründung. Aus einem öffentlichen Förderprogramm erhält sie ein günstiges Darlehen in Höhe von 50 000 Euro. Für die Startphase ihres Unternehmens benötigt sie jedoch den vierfachen Betrag.
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Lifescience Database Archive (English)

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Effects of HSP90 inhibitor 17-allylamino-17-demethoxygeldanamycin (17-AAG) on NEU/HER2 overexpressing mammary tumours in MMTV-NEU-NT mice monitored by Magnetic Resonance Spectroscopy.

Science.gov (United States)

Rodrigues, Loreta M; Chung, Yuen-Li; Al Saffar, Nada M S; Sharp, Swee Y; Jackson, Laura E; Banerji, Udai; Stubbs, Marion; Leach, Martin O; Griffiths, John R; Workman, Paul

2012-05-23

The importance of ERBB2/NEU/HER2 in the response of breast tumours to the heat shock protein 90 (HSP90) inhibitor 17-allylamino-17-demethoxygeldanamycin (17-AAG; tanespimycin) has been demonstrated in the clinic. ERBB2 is an oncoprotein client that is highly dependent on HSP90. This and other oncogenic client proteins (e.g. B-RAF, C-RAF, ALK and CDK4) are depleted by 17-AAG in both animal tumours and patients. Here we investigate by Magnetic Resonance Spectroscopy (MRS) the metabolic response of 17-AAG in spontaneous, NEU/HER2 driven mammary tumours in transgenic MMTV-NEU-NT mice and in cells isolated and cultured from these tumours. Mammary tumours were monitored by 31P MRS in vivo and in tumour extracts, comparing control and 17-AAG treated mice. A cell line derived from NEU/HER2 mammary tumours was also cultured and the effect of 17-AAG was measured by 31P MRS in cell extracts. Molecular biomarkers were assessed by immunoblotting in extracts from cells and tumours. For comparison of tumour volume, metabolite concentrations and Western blot band intensities, two-tailed unpaired t-tests were used. The NEU/HER2 mammary tumours were very sensitive to 17-AAG and responded in a dose-dependent manner to 3 daily doses of 20, 40 and 80mg/kg of 17-AAG, all of which caused significant regression. At the higher doses, 31P MRS of tumour extracts showed significant decreases in phosphocholine (PC) and phosphoethanolamine (PE) whereas no significant changes were seen at the 20mg/kg dose. Extracts of isolated cells cultured from the mammary carcinomas showed a significant decrease in viable cell number and total PME after 17-AAG treatment. Western blots confirmed the expected action of 17-AAG in inducing HSP72 and significantly depleting HSP90 client proteins, including NEU/HER2 both in tumours and in isolated cells. The data demonstrate the high degree of sensitivity of this clinically relevant NEU/HER2-driven tumour model to HSP90 inhibition by 17-AAG, consistent with the
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The transport control system. Development of a process of measurement for the continuous loading analysis of Diesel engines for underground transport vehicles. Final report; Transportleitsystem. Entwicklung eines Messverfahrens zur kontinuierlichen Belastungsanalyse von Dieselmotoren untertaegiger Transportfahrzeuge. Schlussbericht

Energy Technology Data Exchange (ETDEWEB)

Kartenberg, H.J.; Pressburger, W.

1994-08-01

For the operation of mines, a complete transport control system approved for mining is to be built up. For economic reasons, high availability must be aimed at for the associated equipment. Transport vehicles should therefore be subjected to continuous diagnosis. By remedying faults in time and preventive maintenance, the frequency of failure of the transport vehicles should be reduced and their service life increased. Other aims are: Complete temporal local monitoring and control related to the work in transport, the existing radio system should transmit speech and data equally, timely and appropriate supply of the operating points by a newly created organisation connected with the transport control room. (orig.) [Deutsch] Fuer die Materialwirtschaft von Bergwerken soll ein komplettes bergbauzugelassenes Transportleitsystem aufgebaut werden. Aus wirtschaftlichen Gruenden ist fuer die dazugehoerenden Betriebsmittel eine hohe Verfuegbarkeit anzustreben. Daher sollen insbesondere Transportfahrzeuge einer kontinuierlichen Diagnose unterworfen werden. Durch fruehzeitige Fehlerbeseitigung und vorbeugende Wartungsmassnahmen soll die Ausfallhaeufigkeit der Transportfahrzeuge verringert und ihre Lebensdauer erhoeht werden. Weitere Zielvorgaben sind: lueckenlose zeitliche, oertliche und auftragsbezogene Ueberwachung und Steuerung bei der Transportabwicklung; das vorhandene Lokfunksystem soll Sprache und Daten gleichermassen uebertragen; zeit- und bedarfsgerechte Belieferung der Betriebspunkte durch eine neu zu schaffende Ablauforganisation im Verbund mit der Transportleitwarte. (orig.)

Epidermal growth factor-induced mobilization of a ganglioside-specific sialidase (NEU3) to membrane ruffles

International Nuclear Information System (INIS)

Yamaguchi, Kazunori; Hata, Keiko; Wada, Tadashi; Moriya, Setsuko; Miyagi, Taeko

2006-01-01

Human ganglioside-specific sialidase, NEU3, localized at cell membranes is thought to regulate various biological processes at cell surfaces. We here explored functional subcellular localization of the sialidase by immunofluorescence and found accumulation at leading edges of cell membranes in the presence of serum in culture. In response to EGF, the sialidase redistributed rapidly to ruffling cell membranes of squamous carcinoma A431 cells and co-localized with Rac-1. NEU3 overexpression enhanced Rac-1 activation and cell migration as compared with controls in HeLa cells as well as in A431 cells. Consistent with co-localization with Rac-1 by immunofluorescence, NEU3 was found to co-precipitate with activated Rac bound to GST-PAK-1 fusion protein. NEU3 silencing by siRNA, in contrast, resulted in inhibition of Rac-1 activation. These results indicate that NEU3 is able to mobilize to membrane ruffles in response to growth stimuli and activate the Rac-1 signaling by co-localization with Rac-1, leading to increased cell motility
Verfahren zur genbasierten Diagnose eines Legasthenierisikos

OpenAIRE

Wilcke, Arndt; Ahnert, Peter; Kirsten, Holger; Ligges, Carolin; Boltze, Johannes

2016-01-01

Die vorliegende Erfindung betrifft ein Verfahren zur Diagnose eines Legasthenierisikos, umfassend die Schritte: a) Bereitstellung einer Nukleinsäure beinhaltenden Probe von einem zu diagnostizierenden Menschen, b) Bestimmung des Genotyps der Nukleinsäure der Probe für mindestens eine chromosomale Region, ausgewählt aus der Gruppe bestehend aus der Region von Nukleotid 12091000 bis 12200000 des Chromosoms 1, der Region von Nukleotid 89066000 bis 89088000 des Chromosoms 15, der Region von Nukle...
Shareholder Kapitalismus und das Casino Spiel an den Börsen

OpenAIRE

Young, Brigitte; Hegelich, Simon

2003-01-01

'Das Konzept des Shareholder Value ist durch die jüngsten Entwicklungen im Unternehmenssektor, vor allem durch die Bilanz- und Betrugsskandale von TNC's und die damit verbundene Vernichtung von Arbeitsplätzen in die Kritik geraten. In den politischen Debatten über Shareholder Value wird ein Systemunterschied zwischen dem 'Stakeholder-Ansatz' (wie im rheinischen Kapitalismus) und dem mit der Liberalisierung der Finanzmärkte Ende der 70er Jahre in den USA entwickelten Begriff Shareholder Value ...
Clinical significance of assessing Her2/neu expression in gastric cancer with dual tumor tissue paraffin blocks.

Science.gov (United States)

Ge, Xiaowen; Wang, Haixing; Zeng, Haiying; Jin, Xuejuan; Sujie, Akesu; Xu, Chen; Liu, Yalan; Huang, Jie; Ji, Yuan; Tan, Yunshan; Liu, Tianshu; Hou, Yingyong; Qin, Jing; Sun, Yihong; Qin, Xinyu

2015-06-01

One paraffin block is routinely used for human epidermal growth factor receptor 2 (Her2/neu) immunohistochemistry (IHC) assessment. Here, we investigated if picking 2 paraffin blocks for Her2/neu evaluation on 1 slide is an economical, efficient, and practical method, which may reduce false negativity of Her2/neu IHC assessment due to intratumoral heterogeneity. A total of 251 gastric cancer (GC) patients were divided into a cohort using 1 tumor tissue paraffin block (single-block group, n = 132) and a cohort using dual tumor tissue paraffin blocks (dual-block group, n = 119) when evaluating Her2/neu expression status by IHC. In dual-block group, we combined the results from 2 different paraffin blocks and used the higher one as the final score. The number of IHC 1+, 2+, and 3+ specimens in the single-block group was 31 (23.5%), 40 (30.3%), and 19 (14.4%), respectively. The combined final IHC score in the dual-block group of 1+, 2+, and 3+ was 26 (21.8%), 34 (28.6%), and 23 (19.3%), respectively. Inconsistent Her2/neu expression between blocks was found in 36 (30.3%) cases in the dual-block group. The pooled data in the single-block group and the dual-block group indicated that, when using dual blocks, the Her2/neu-positive (3+) rate of GC was higher compared to that in the single-block group. Our results implied that using dual paraffin blocks to assess Her2/neu expression of GC may help identify more patients with Her2/neu-positive GC who could benefit from targeted therapy, by reducing false-negative rate of Her2 status assessment. This is an efficient, economical, and practical method for Her2/neu evaluation of GC. Copyright © 2015 Elsevier Inc. All rights reserved.
File list: NoD.Neu.20.AllAg.Neural_progenitor_cells [Chip-atlas[Archive

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Refinement of immunohistologic parameters for Her2/neu scoring validation by FISH and CISH.

Science.gov (United States)

Leong, Anthony S-Y; Formby, Mark; Haffajee, Zenobia; Clarke, Megan; Morey, Adrienne

2006-12-01

The conventional method of scoring Her2/neu immunostaining is recognized to result in a high false-positive rate among 2+ cases when compared with results obtained with fluorescence in situ hybridization (FISH); however, costs and convenience dictates that immunohistochemistry remains the screening test for Her2/neu status in patients with breast cancer. We describe refined criteria for scoring of Her2/neu on the basis of anatomic localization rather than the subjective assessment of intensity. The presence of a circumferential tram track pattern that results from the staining of apposing cell membranes in >25% of the tumor cells was necessary for a 3+ score (Her2/neu overexpressed) and the presence of the tram track pattern in CISH testing in selected cases from the other categories validated the revised scoring method. These criteria reduced the numbers of equivocal staining cases that required FISH testing.
Numerical design and simulation of gas turbines; Numerische Auslegung und Simulation von Gasturbinen

Energy Technology Data Exchange (ETDEWEB)

Schaber, R.W.

2000-12-14

Purpose of this thesis is the development of a universal tool for the conceptual design phase of gas turbine engines. The software concept for the tool especially for tasks in industry will be provided and examples will be shown. The Gas Turbine Simulation and Design Program GTSDP given, developed in this theses, will augment the quality of work and reduce the calculation time. In parameter studies, gas turbine designs can be easily compared with respect to component efficiencies, mass, cost, and life. [German] Ziel der Arbeit ist, unter besonderer Beachtung industrieller Aufgabenstellungen ein neues universelles Auslegungsverfahren fuer die Vorauslegung von Gasturbinen zu entwickeln, die Voraussetzungen fuer ein derartiges Programmsystem bereitzustellen und die Einsatzmoeglichkeiten an ersten Beispielen aufzuzeigen. Mit dem entwickelten Gasturbinen-Vorauslegungsprogramm GTSDP wird ein Werkzeug vorgestellt, das die Arbeitsqualitaet bei gleichzeitiger Reduzierung der Durchlaufzeiten, insbesondere durch die schnelle Vergleichbarkeit von Triebwerken hinsichtlich Wirkungsgraden, Gewicht, Kosten und Lebensdauer verbessert.
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Interspinöse Implantate in der Wirbelsäulenchirurgie - eine Frage der Indikation: Ein Fallbericht

Directory of Open Access Journals (Sweden)

Decristoforo I

2009-01-01

Full Text Available Ein 77-jähriger Patient war wegen manifester neurogener Claudicatio spinalis bei bekannter lumbaler Spinalkanalstenose in 3 Segmenten an einer auswärtigen Institution mit perkutanen interspinösen Implantaten versorgt worden, wonach sich die klinische Symptomatik nicht änderte. Erst die mikrochirurgische Dekompression und die Entfernung der Platzhalter führten zu einer deutlichen Besserung der Beschwerden und Verlängerung der schmerzfreien Gehstrecke. Anhand dieses Falles wird die Verwendung von interspinösen Platzhaltern beleuchtet. In der bisherigen klinischen Anwendung fehlen noch die Langzeitergebnisse. Eine korrekte Indikationsstellung zur Intervention bei Spinalkanalstenose ist Voraussetzung für ein zufriedenstellendes postoperatives Ergebnis.
Power pack; Power Pack

Energy Technology Data Exchange (ETDEWEB)

Lueckert, P.; Waltner, A.; Rau, E.; Vent, G. [DaimlerChrysler (Germany)

2004-04-01

The new SLK will be available with two strong gasoline engines: A mechanically supercharged 4-cylinder gasoline engine with Lanchester harmonic balancer and an entirely new 6-cylinder naturally-aspirated 4-valve engine in 90 V configuration and a volume of 3.5 Liters. Both are available with manual or automatic transmission. (orig.) [German] Den neuen SLK gibt es zunaechst mit zwei kraeftigen Ottomotoren: einem aufgeladenen Vierzylinder-Kompressormotor (M 271) sowie einem voellig neu entwickelten 3,5-l-Sechszylinder-V-Motor mit vier Ventilen pro Brennraum (M 272). Beide Motor-Varianten sind, je nach Kundenwunsch mit einem Schalt- oder Automatikgetriebe lieferbar. (orig.)
Eine selbstkonsistente Carleman Linearisierung zur Analyse von Oszillatoren

Directory of Open Access Journals (Sweden)

H. Weber

2017-09-01

Full Text Available Die Analyse nichtlinearer dynamischer Schaltungen ist bis heute eine herausfordernde Aufgabe, da nur selten analytische Lösungen angegeben werden können. Daher wurden eine Vielzahl von Methoden entwickelt, um eine qualitative oder quantitative Näherung für die Lösungen der Netzwerkgleichung zu erhalten. Oftmals wird beispielsweise eine Kleinsignalanalyse mit Hilfe einer Taylorreihe in einem Arbeitspunkt durchgeführt, die nach den Gliedern erster Ordnung abgebrochen wird. Allerdings ist diese Linearisierung nur in der Nähe des stabilen Arbeitspunktes für hyperbolische Systeme gültig. Besonders für die Analyse des dynamischen Verhaltens von Oszillatoren treten jedoch nicht-hyperbolische Systeme auf, sodass diese Methode nicht angewendet werden kann Mathis(2000. Carleman hat gezeigt, dass nichtlineare Differentialgleichungen mit polynomiellen Nichtlinearitäten in ein unendliches System von linearen Differentialgleichungen transformiert werden können Carleman(1932. Wird das unendlichdimensionale Gleichungssystem für numerische Zwecke abgebrochen, kann bei Oszillatoren der Übergang in eine stationäre Schwingung (Grenzzyklus nicht wiedergegeben werden.In diesem Beitrag wird eine selbstkonsistente Carleman Linearisierung zur Untersuchung von Oszillatoren vorgestellt, die auch dann anwendbar ist, wenn die Nichtlinearitäten keinen Polynomen entsprechen. Anstelle einer linearen Näherung um einen Arbeitspunkt, erfolgt mit Hilfe der Carleman Linearisierung eine Approximation auf einem vorgegebenen Gebiet. Da es jedoch mit der selbstkonsistenten Technik nicht möglich ist, das stationäre Verhalten von Oszillatoren zu beschreiben, wird die Berechnung einer Poincaré-Abbildung durchgeführt. Mit dieser ist eine anschließende Analyse des Oszillators möglich.
Eine selbstkonsistente Carleman Linearisierung zur Analyse von Oszillatoren

Science.gov (United States)

Weber, Harry; Mathis, Wolfgang

2017-09-01

Die Analyse nichtlinearer dynamischer Schaltungen ist bis heute eine herausfordernde Aufgabe, da nur selten analytische Lösungen angegeben werden können. Daher wurden eine Vielzahl von Methoden entwickelt, um eine qualitative oder quantitative Näherung für die Lösungen der Netzwerkgleichung zu erhalten. Oftmals wird beispielsweise eine Kleinsignalanalyse mit Hilfe einer Taylorreihe in einem Arbeitspunkt durchgeführt, die nach den Gliedern erster Ordnung abgebrochen wird. Allerdings ist diese Linearisierung nur in der Nähe des stabilen Arbeitspunktes für hyperbolische Systeme gültig. Besonders für die Analyse des dynamischen Verhaltens von Oszillatoren treten jedoch nicht-hyperbolische Systeme auf, sodass diese Methode nicht angewendet werden kann Mathis (2000). Carleman hat gezeigt, dass nichtlineare Differentialgleichungen mit polynomiellen Nichtlinearitäten in ein unendliches System von linearen Differentialgleichungen transformiert werden können Carleman (1932). Wird das unendlichdimensionale Gleichungssystem für numerische Zwecke abgebrochen, kann bei Oszillatoren der Übergang in eine stationäre Schwingung (Grenzzyklus) nicht wiedergegeben werden. In diesem Beitrag wird eine selbstkonsistente Carleman Linearisierung zur Untersuchung von Oszillatoren vorgestellt, die auch dann anwendbar ist, wenn die Nichtlinearitäten keinen Polynomen entsprechen. Anstelle einer linearen Näherung um einen Arbeitspunkt, erfolgt mit Hilfe der Carleman Linearisierung eine Approximation auf einem vorgegebenen Gebiet. Da es jedoch mit der selbstkonsistenten Technik nicht möglich ist, das stationäre Verhalten von Oszillatoren zu beschreiben, wird die Berechnung einer Poincaré-Abbildung durchgeführt. Mit dieser ist eine anschließende Analyse des Oszillators möglich.
Donnerwetter - Physik!

CERN Document Server

Peter Häussler

2001-01-01

Auf einer Geburtstagsparty werden Jugendlichen sieben Zauberkunststücke vorgeführt. Sieben erstaunliche Phänomene, die Anne und ihre Freunde zunächst vor Rätsel stellen. Doch so nach und nach kommen sie den Tricks auf die Spur. Mit der Unterstützung eines Nachbarn, einem pensionierten Physiker, entwickeln sie dazu physikalische Ideen: Anhand des Gewichts von Schokolade wird die Einheit für die Kraft diskutiert, "Schau mir in die Augen" leitet ein Gespräch über die Bildentstehung ein. Das Beobachten von Zugvögeln ist Aufhänger für den Magnetismus, und ein heftiges Gewitter gibt Anlass zum Nachdenken über die Elektrizität. Auch die von Physikern entwickelten Vorstellungen zu Quarks, Weißen Zwergen und Schwarzen Löchern kommen zur Sprache. Peter Häußler ist Professor für die Didaktik der Physik an der Universität Kiel und versteht es, lebendig und spannend zu schreiben. Über die Grundlagen der Physik hinaus erfährt der Leser auch etwas über ihre Erkenntnismethoden und den Unterschied zwisc...
Alanud on Neu/Now online-festival

Index Scriptorium Estoniae

2011-01-01

4. okt.-l avatud Neu/Now festivali online-keskonnas esitletakse 23 riigi 135 noore kunstiprojekte. Nimetatud Eestist festivalile pääsenud 9 tööd. 17.-20. nov.-ni toimuval live-festivail esitletakse Tallinnas 17 riigi 35 kunstiprojekti (Eestist 5). Kandideerida said lõpetavad või äsja lõpetanud kunsti- ja muusikaerialade tudengid ELIA võrgustikku kuuluvatest ülikoolidest
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Elevated expression of NEU1 sialidase in idiopathic pulmonary fibrosis provokes pulmonary collagen deposition, lymphocytosis, and fibrosis.

Science.gov (United States)

Luzina, Irina G; Lockatell, Virginia; Hyun, Sang W; Kopach, Pavel; Kang, Phillip H; Noor, Zahid; Liu, Anguo; Lillehoj, Erik P; Lee, Chunsik; Miranda-Ribera, Alba; Todd, Nevins W; Goldblum, Simeon E; Atamas, Sergei P

2016-05-15

Idiopathic pulmonary fibrosis (IPF) poses challenges to understanding its underlying cellular and molecular mechanisms and the development of better therapies. Previous studies suggest a pathophysiological role for neuraminidase 1 (NEU1), an enzyme that removes terminal sialic acid from glycoproteins. We observed increased NEU1 expression in epithelial and endothelial cells, as well as fibroblasts, in the lungs of patients with IPF compared with healthy control lungs. Recombinant adenovirus-mediated gene delivery of NEU1 to cultured primary human cells elicited profound changes in cellular phenotypes. Small airway epithelial cell migration was impaired in wounding assays, whereas, in pulmonary microvascular endothelial cells, NEU1 overexpression strongly impacted global gene expression, increased T cell adhesion to endothelial monolayers, and disrupted endothelial capillary-like tube formation. NEU1 overexpression in fibroblasts provoked increased levels of collagen types I and III, substantial changes in global gene expression, and accelerated degradation of matrix metalloproteinase-14. Intratracheal instillation of NEU1 encoding, but not control adenovirus, induced lymphocyte accumulation in bronchoalveolar lavage samples and lung tissues and elevations of pulmonary transforming growth factor-β and collagen. The lymphocytes were predominantly T cells, with CD8(+) cells exceeding CD4(+) cells by nearly twofold. These combined data indicate that elevated NEU1 expression alters functional activities of distinct lung cell types in vitro and recapitulates lymphocytic infiltration and collagen accumulation in vivo, consistent with mechanisms implicated in lung fibrosis.
Wege zur Entdeckung von Communities in Folksonomies

OpenAIRE

Jäschke, Robert; Hotho, Andreas; Schmitz, Christoph; Stumme, Gerd

2006-01-01

Ein wichtiger Baustein des neu entdeckten World Wide Web - des "Web 2.0" - stellen Folksonomies dar. In diesen Systemen können Benutzer gemeinsam Ressourcen verwalten und mit Schlagwörtern versehen. Die dadurch entstehenden begrifflichen Strukturen stellen ein interessantes Forschungsfeld dar. Dieser Artikel untersucht Ansätze und Wege zur Entdeckung und Strukturierung von Nutzergruppen ("Communities") in Folksonomies.
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Norrie-Syndrom

OpenAIRE

Flügel, T; Pflug, C; Niessen, A

2016-01-01

Hintergrund: Vorgestellt wurde in unserer Klinik ein 17-jähriger Junge mit angeborener Blindheit. Er leidet zusätzlich seit dem 14. Lebensjahr unter einer schubweise progredienten Schwerhörigkeit. Aktuell zeigte sich eine mittelgradige Schwerhörigkeit beidseits. Eine humangenetische Abklärung der Augenveränderungen hatte in der frühen Kindheit keine Auffälligkeiten ergeben. Die Familienanamnese ist bezogen auf Hörstörungen oder Blindheit leer. Wegen der neu aufgetretenen progredienten Schwer...
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A Comprehensive Evaluation Of HER-2/NEU In Human Breast Cancer By Immunohistochemistry And Fluorescence In Situ Hybridization

International Nuclear Information System (INIS)

Abdel Fattah, H.I.; Seif, A.A.; El Hadidi, E.S.; Mohamed, A.A.; El Shinawi, M.E.; Shabaan, M.A.M.

2012-01-01

Background: Accurate diagnostic assessment of human epidermal growth factor receptor-2 (HER2/neu) is essential and a prerequisite for appropriate application of the humanized anti-HER-2 monoclonal antibody trastuzumab (Herceptin) to the treatment of patients with breast cancer. The food drug administration (FDA) approved immunohistochemistry (IHC) and Fluorescence in situ hybridization (FISH) for HER2/neu evaluation. IHC is the most widely applicable diagnostic modality in studying HER-2 status. FISH is used for HER2/neu assessment in cases with an equivocal IHC status (score 2+). Objectives: The aim of this study was to detect the amplification and/or expression of HER2/neu in breast cancer using FISH and IHC techniques and to evaluate these applied techniques for their potential and clinical application, with special consideration of equivocal cases by IHC (2+). Subjects and Methods: Assessment of HER2/neu gene expression was made by FISH analysis using the HER2/CEP dual color probe (Vysis) in paraffin-embedded tissue sections of 32 breast cancer patients who were grouped into stages 1+, 2+ or 3+ based on IHC (CBII monoclonal antibody), 4 were classified as IHC 0, 4 were classified as IHC 1 +, 22 were classified as the borderline group; IHC 2+, and 2 were classified as IHC 3+. ER, PR, CEA and CA15-3 were performed to all cases. Survival data was obtained from 25 patients only. Results: The cut-off suggested for HER2/neu amplification by FISH ratio was > 1.3. No statistical significance was found between HER2/neu -by either FISH or IHC- and the different prognostic parameters. The overall survival for the studied patients -in average 3 years- was 16/25 (64%). A significant statistical association was revealed between breast cancer patients’ survival outcome and HER2/neu amplification (p < 0.05) using chi square test. Conclusion: All breast cancer patients should be assessed for HER2/neu status. IHC is a well established method for assessing HER2/neu status in
Age related association of her-2/neu with prognostic markers in female breast carcinoma

International Nuclear Information System (INIS)

Sharif, M.A.; Mamoon, N.; Mushtaq, S.; Khadim, M.T.

2010-01-01

To determine age-related association of Her-2/neu expression with histological and immunohistochemical prognostic markers in female breast carcinoma. Study Design: Cross sectional, observational study. Place and Duration of Study: Department of Histopathology, Armed Forces Institute of Pathology, Rawalpindi, from January 2004 to December 2007. Methodology: Patients of primary operable female breast carcinoma were categorised as 50 years (post-menopausal) age groups. Histological type, tumour size, tumour grade and lymph node status were determined while estrogen receptor (ER), progesterone receptor (PR) and Her-2/neu expression were evaluated immunohistochemically. Association of Her-2/neu with histological and immunohistochemical prognostic markers was determined in pre-menopausal, peri-menopausal and post- menopausal age groups using the x2 test for uni- and multivariate analysis. Results: Out of the 722 patients, 230 (31.9%) were in pre-menopuasal, 221 (30.6%) in peri-menopausal and 271 (37.5%) in post-menopausal age group. Infiltrating ductal carcinoma was the pre-dominant subtype in all the age groups. Mean tumour size was 4.3 +- 2.3 cm (range 0.4-17 cm) and lymph node metastasis was seen in 310 (70.8%) cases. Her-2/neu showed association with ER in the all the age groups while PR only showed association in the peri-menopausal and postmenopausal women. Her-2/neu showed no association with tumour size, tumor grade and lymph node metastases in pre-menopausal and peri-menopausal women while it showed positive association with tumour size and lymph node metastasis in the post-menopausal women (p < 0.05). Conclusion: Majority (62%) patients were under 50 years as against the Western epidemiology. Association of Her-2/neu with ER, PR, tumour size and lymph node metastasis was age related as pre-menopausal, peri-menopausal and postmenopausal had variable expression of these prognostic markers with therapeutic and prognostic implications. (author)

Aspekte zur Tempelarchitektur in Myanmar : eine Beurteilung des räumlichen Aufbaus

OpenAIRE

Thaw, Tar Aung

2012-01-01

Das hohe Wirtschaftswachstum vieler asiatischer Länder findet seine Entsprechung in der gebauten Umwelt. Allerdings werden viele Gebäude in diesen Ländern unter Missachtung der kulturellen Wahrzeichen und des traditionellem Soziallebens gebaut. Das eigene traditionelle Erbe sollte besser verstanden und integriert werden in die sich entwickelten Wertesysteme. Traditionelle Werte können dabei einen festen Halt bieten und Identität stiften oder den Entwicklungsprozess und die Akzeptanz der damit...
Overexpression of membrane sialic acid-specific sialidase Neu3 inhibits matrix metalloproteinase-9 expression in vascular smooth muscle cells

International Nuclear Information System (INIS)

Moon, Sung-Kwon; Cho, Seung-Hak; Kim, Kyung-Woon; Jeon, Jae Heung; Ko, Jeong-Heon; Kim, Bo Yeon; Kim, Cheorl-Ho

2007-01-01

The ganglioside-specific sialidase Neu3 has been suggested to participate in cell growth, migration, and differentiation. Recent reports suggest that sialidase may be involved in intimal thickening, an early stage in the development of atherosclerosis. However, the role of the Neu3 gene in vascular smooth muscle cells (VSMC) responses has not yet been elucidated. To determine whether a Neu3 is able to modulate VSMC growth, the effect of overexpression of the Neu3 gene on cell proliferation was examined. However, the results show that the overexpression of this gene has no effect on DNA synthesis and ERK phosphorylation in cultured VSMC in the presence of TNF-α. Because atherogenic effects need not be limited to proliferation, we decided to examine whether Neu3 exerted inhibitory effects on matrix metalloproteinase-9 (MMP-9) activity in TNF-α-induced VSMC. The expression of the Neu3 gene led to the inhibition of TNF-α-induced matrix metalloproteinase-9 (MMP-9) expression in VSMC as determined by zymography and immunoblot. Furthermore, Neu3 gene expression strongly decreased MMP-9 promoter activity in response to TNF-α. This inhibition was characterized by the down-regulation of MMP-9, which was transcriptionally regulated at NF-κB and activation protein-1 (AP-1) sites in the MMP-9 promoter. These findings suggest that the Neu3 gene represents a physiological modulator of VSMC responses that may contribute to plaque instability in atherosclerosis
Application of the inter-line PCR for the analyse of genomic rearrangements in radiation-transformed mammalian cell lines; Anwendung der Inter-Line PCR zur Analyse von genomischen Veraenderungen in strahlentransformierten Saeugerzellinien

Energy Technology Data Exchange (ETDEWEB)

Leibhard, S.; Smida, J. [Muenchen Univ. (Germany). Strahlenbiologisches Inst.; Eckardt-Schupp, F.; Hieber, L. [GSF-Inst. fuer Strahlenbiologie, Oberschleissheim (Germany)

1996-12-31

Repetitive DNA sequences of the LINE-family (long interspersed elements) that are widely distributed among the mammalian genome can be activated or altered by the exposure to ionizing radiation [1]. By the integration at new sites in the genome alterations in the expression of genes that are involved in cell transformation and/or carcinogenesis may occur [2, 3]. A new technique - the inter-LINE PCR - has been developed in order to detect and analyse such genomic rearrangements in radiation-transformed cell lines. From the sites of transformation- or tumour-specific changes in the genome it might be possible to develop new tumour markers for diagnostic purpose. (orig.) [Deutsch] Repetitive DNA-Sequenzen der LINE-Familie, die weit verbreitet im Genom von Saeugerzellen vorkommen, koennen durch Exposition mit ionisierender Strahlung aktiviert und veraendert werden [1]. Durch eine Neu- bzw. Reintegration an anderen Positionen im Genom kann es zu bedeutenden Veraenderungen im Genom der Zelle kommen. Die Expression von Genen, die bei den Prozessen der Zelltransformation bzw. der Karzinogenese beteiligt sind, kann dadurch veraendert werden [2, 3]. Mithilfe der von uns entwickelten Inter-LINE PCR und der anschliessenden Analyse der veraenderten Produktmuster nach gelelektrophoretischer Auftrennung koennen solche `genomic rearrangements` unter Beteiligung von LINE-Elementen untersucht und naeher charakterisiert werden. Durch Klonierung und Sequenzierung transformations- bzw. tumorspezifischer PCR-Produkte sollte es moeglich sein Tumormarker fuer diagnostische Zwecke zu entwickeln. Die Methode wurde fuer die Analyse von Zellen des Syrischen Hamster aufgebaut, sie ist jedoch universell fuer alle Saeuger anwendbar. (orig.)
Identical location transmission electron microscopy in combination with rotating disc electrode measurements. The activity of fuel cell catalysts and their degradation

Energy Technology Data Exchange (ETDEWEB)

Schloegl, Katrin G.

2011-07-13

As an alternative to conventional combustion engines, the Proton Exchange Membrane Fuel Cell (PEMFC) using hydrogen as a fuel is a promising concept owing to its potential independence from fossil fuels, high efficiency and zero emissions. Concerning its commercial viability, the fundamental problem of high system cost per power output and lifetime is closely related to finding more active and stable catalysts for the oxygen reduction reaction. In the presented work, several methods are combined to examine the parameters and processes responsible for both activity and degradation of platinum-based catalysts. Degradation mechanisms are scrutinized by means of electrochemical measurements with the rotating disc electrode in combination with a recently developed TEM technique, which allows for the comparison of identical locations before and after accelerated stress tests. (orig.) [German] Die mit Wasserstoff betriebene Proton Exchange Membrane Brennstoffzelle (PEMFC) stellt aufgrund ihrer potentiellen Unabhaengigkeit von fossilen Energietraegern, ihrem hohen Wirkungsgrad und fehlendem Schadstoffausstoss eine vielversprechende Alternative zum konventionellen Verbrennungsmotor dar. Das grundlegende Problem der zu hohen Systemkosten und zu geringen Lebensdauer fuer kommerzielle Anwendungen ist eng mit der Entwicklung aktiverer und stabiler Elektrokatalysatoren fuer die Sauerstoffreduktion verknuepft. In der vorliegenden Arbeit werden verschiedene Methoden kombiniert, um die Parameter und Prozesse zu untersuchen, welche fuer die Aktivitaet und Degradation platinbasierter Katalysatoren verantwortlich sind. Zur Aufklaerung vorliegender Degradationsmechanismen werden elektrochemische Messungen mit der rotierenden Scheibenelektrode in Kombination mit einer neu entwickelten TEM Methode eingesetzt, welche es ermoeglicht, identische Stellen vor und nach beschleunigten Degradationstests zu untersuchen.
Imaging and biodistribution of Her2/neu expression in non-small cell lung cancer xenografts with 64Cu-labeled trastuzumab PET

International Nuclear Information System (INIS)

Paudyal, P.; Paudyal, B.; Hanaoka, Hirofumi

2010-01-01

Non-small cell lung carcinomas (NSCLC) overexpress the Her2/neu gene in approximately 59% of cases. Trastuzumab, a humanized monoclonal antibody, interferes with Her2 signaling and is approved for the treatment of Her2/neu overexpressing breast cancer. However, its therapeutic use in Her2/neu overexpressing NSCLC remains obscure. The present study aimed to determine the role of 64 Cu-labeled trastuzumab positron emission tomography (PET) for non-invasive imaging of Her2/neu expression in NSCLC. Trastuzumab was conjugated with the bifunctional chelator 1, 4, 7, 10-tetraazacyclododecane-1, 4, 7, 10-tetraacetic acid (DOTA) and radiolabeled with 64 Cu. The molecular specificity of DOTA-trastuzumab was determined in NSCLC cell lines with Her2/neu overexpression (NCI-H2170) and negative expression (NCI-H520). Imaging of Her2/neu expression was performed in NCI-H2170 tumor-bearing mice with 64 Cu-DOTA-trastuzumab PET and 64 Cu-DOTA-immunoglobulin G (IgG). In vitro studies revealed specific binding of DOTA-trastuzumab in the Her2/neu positive NCI-H2170 cells, while no binding was seen in the Her2/neu negative NCI-H520 cell line. Biodistribution and PET studies revealed a significantly high accumulation of 64 Cu-DOTA-trastuzumab in the Her2/neu overexpressing NCI-H2170 tumor at 24 and 48 h post-injection (21.4±1.4% and 23.2±5.1% injection dose/gram (% ID/g), respectively). PET imaging of Her2/neu negative NCI-H520 tumors showed much less uptake of 64 Cu-DOTA-trastuzumab (4.0% ID/g). The NCI-H2170 tumor uptake of 64 Cu-DOTA-trastuzumab was significantly higher than that of 64 Cu-DOTA-IgG (P 64 Cu-DOTA-trastuzumab showed a very clear image of a Her2/neu positive tumor and appeared to be effective as a PET tracer for imaging of Her2/neu gene expression in NSCLC, suggesting its potential clinical use for identifying patients that might benefit from trastuzumab-based therapy. (author)
Applicability of geostatistical procedures for the evaluation of hydrogeological parameters of a fractured aquifer in the Ronneburg mine district; Anwendbarkeit geostatistischer Verfahren zur Beurteilung hydrogeologischer Parameter eines heterogenen Kluftaquifers im Ronneburger Bergbaurevier

Energy Technology Data Exchange (ETDEWEB)

Grasshoff, C.; Schetelig, K. [RWTH Aachen, Lehrstuhl fuer Ingenieurgeologie und Hydrogeologie (Germany); Tomschi, H. [Harress Pickel Consult GmbH, Huerth (Germany)

1998-12-31

The following paper demonstrates, how a geostatistical approach can help interpolating hydrogeological parameters over a certain area. The basic elements developed by G. Matheron in the sixties are represented as the preconditions and assumptions, which provide the best results of the estimation. The variogram as the most important tool in geostatistics offers the opportunity to describe the correlating behaviour of a regionalized variable. Some kriging procedures are briefly introduced, which provide under varying circumstances estimating of non-measured values with the theoretical variogram-model. In the Ronneburg mine district 108 screened drill-holes could provide coefficients of hydraulic conductivity. These were interpolated with ordinary kriging over the whole investigation area. An error calculation was performed, which could prove the accuracy of the estimation. Short prospects point out some difficulties handling with geostatistic procedures and make suggestions for further investigations. (orig.) [Deutsch] Der folgende Artikel soll aufzeigen, inwiefern ein geostatistischer Ansatz hilfreich ist, um hydrogeologische Parameter flaechenhaft zu interpolieren. Dabei werden die von Matheron in den sechziger Jahren entwickelten Grundlagen vorgestellt und die Voraussetzungen definiert, unter denen die geostatistischen Schaetzmethoden die besten Ergebnisse liefern. Das Variogramm, als wichtigstes Werkzeug, bietet die Moeglichkeit, die raeumliche Korrelation der untersuchten Variable zu belegen. Mehrere Kriging-Verfahren werden skizzenhaft vorgestellt, die es unter unterschiedlichen Voraussetzungen ermoeglichen, an den Stellen des Untersuchungsgebietes, wo keine Messungen vorliegen, Schaetzungen aus dem Variogramm-Modell zu errechnen. Im Ronneburger Bergbaugebiet wurden aus 108 verfilterten Bohrungen k{sub f}-Werte gewonnen, die mittels Ordinary Kriging flaechenhaft ueber das gesamte Untersuchungsgebiet interpoliert wurden. Eine Fehlerabschaetzung gibt ueber die
Tracking of [18F]FDG-labeled natural killer cells to HER2/neu-positive tumors

International Nuclear Information System (INIS)

Meier, Reinhard; Piert, Morand; Piontek, Guido; Rudelius, Martina; Oostendorp, Robert A.; Senekowitsch-Schmidtke, Reingard; Henning, Tobias D.; Wels, Winfried S.; Uherek, Christoph; Rummeny, Ernst J.; Daldrup-Link, Heike E.

2008-01-01

Introduction: The objective of this study was to label the human natural killer (NK) cell line NK-92 with [ 18 F]fluoro-deoxy-glucose (FDG) for subsequent in vivo tracking to HER2/neu-positive tumors. Methods: NK-92 cells were genetically modified to NK-92-scFv(FRP5)-zeta cells, which express a chimeric antigen receptor that is specific to the tumor-associated ErbB2 (HER2/neu) antigen. NK-92 and NK-92-scFv(FRP5)-zeta cells were labeled with [ 18 F]FDG by simple incubation at different settings. Labeling efficiency was evaluated by a gamma counter. Subsequently, [ 18 F]FDG-labeled parental NK-92 or NK-92-scFv(FRP5)-zeta cells were intravenously injected into mice with implanted HER2/neu-positive NIH/3T3 tumors. Radioactivity in tumors was quantified by digital autoradiography and correlated with histopathology. Results: The NK-92 and NK-92-scFv(FRP5)-zeta cells could be efficiently labeled with [ 18 F]FDG by simple incubation. Optimal labeling efficiencies (80%) were achieved using an incubation period of 60 min and additional insulin (10 IU/ml). After injection of 5x10 6 [ 18 F]FDG-labeled NK-92-scFv(FRP5)-zeta cells into tumor-bearing mice, digital autoradiography showed an increased uptake of radioactivity in HER2/neu-positive tumors at 60 min postinjection. Conversely, injection of 5x10 6 NK-92 cells not directed against HER2/neu receptors did not result in increased uptake of radioactivity in the tumors. Histopathology confirmed an accumulation of the NK-92-scFv(FRP5)-zeta cells, but not the parental NK cells, in tumor tissues. Conclusion: The human NK cell line NK-92 can be directed against HER2/neu antigens by genetic modification. The genetically modified NK cells can be efficiently labeled with [ 18 F]FDG, and the accumulation of these labeled NK cells in HER2/neu-positive tumors can be monitored with autoradiography
PEM-fuel cells for mobile application. Sub task: development of electrocatalysts. Final report; PEM-Brennstoffzelle fuer mobile Anwendung. Teilprojekt: Katalysatorenentwicklung. Abschlussbericht

Energy Technology Data Exchange (ETDEWEB)

Starz, K A

1999-01-01

} wurde das Projektziel von 0,8 mgPt/cm{sup 2} deutlich uebertroffen, auch die geforderten Leistungsdichten von >0,4 W/cm{sup 2} im Luft- und Reformatbetrieb wurden bei Degussa erreicht. Ein neuer CO-toleranter Anodenkatalysator mit einer CO-Toleranz bis zu 100 ppm CO ermoeglicht den Betrieb des PEM-Brennstoffzellenstacks mit Methanol-Reformatgas. Die Eigenschaften der neu entwickelten Elektrokatalysatoren wurden von DaimlerChrysler in einem PEM-Demonstrations-Stack nachgewiesen. Damit leistet das Foerdervorhaben einen wichtigen Beitrag zur Weiterentwicklung der PEM-Brennstoffzellentechnologie fuer den Einsatz im mobilen Bereich. (orig.)
Prognostic value of HER-2/neu expression in epithelial ovarian cancer: a systematic review and meta-analysis.

Science.gov (United States)

Wang, Kai; Guan, Chenan; Yu, Junhui; Jin, Xiaoxiao; Sun, Ling; Zheng, Lingzhi; Xia, Liang; Zhang, Yuquan

2017-09-26

This study aimed to conduct a meta-analysis to investigate the association between human epidermal growth factor receptor 2 (HER-2/neu) expression and survival in patients with epithelial ovarian cancer (EOC). HER-2/neu is one of the most frequently studied molecular biological parameters in EOC, but its prognostic impact has not been fully assessed. PubMed and Embase were searched for studies that reported HER-2/neu expression and survival in patients with EOC. The primary outcome was overall survival (OS), and the secondary outcome was progression-free survival (PFS). Hazard ratios (HRs) with 95% confidence interval (CI) were determined using Mantel-Haenszel random-effects model. Publication bias was investigated using funnel plots and Egger's test. A total of 56 studies (N=7212) were included in the analysis. The results showed that patients possessing HER-2/neu expression had significant disadvantages in OS (HR = 1.41; 95%CI, 1.31 to 1.51; P present study findings provided further indication that HER-2/neu expression in patients with EOC has an adverse impact on OS and PFS.
File list: His.Neu.20.AllAg.Cerebellum [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Neu.20.AllAg.Cerebellum mm9 Histone Neural Cerebellum SRX545939,SRX026427,SRX062951,SRX085450,SRX026429,SRX545929,SRX026428,SRX026430,SRX545934,SRX545933,SRX545924,SRX545923,SRX545926,SRX545940,SRX545936,SRX545935,SRX545938,SRX545937,SRX545928,SRX112921,SRX185818,SRX026433,SRX545930,SRX545925,SRX545927,SRX022870,SRX022871,SRX998311,SRX026434,SRX026432,SRX026431,SRX185811,SRX085441,SRX062950,SRX022869,SRX022868 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/His.Neu.20.AllAg.Cerebellum.bed ...
Studies of the HER-2/neu proto-oncogene in human breast and ovarian cancer.

Science.gov (United States)

Slamon, D J; Godolphin, W; Jones, L A; Holt, J A; Wong, S G; Keith, D E; Levin, W J; Stuart, S G; Udove, J; Ullrich, A

1989-05-12

Carcinoma of the breast and ovary account for one-third of all cancers occurring in women and together are responsible for approximately one-quarter of cancer-related deaths in females. The HER-2/neu proto-oncogene is amplified in 25 to 30 percent of human primary breast cancers and this alteration is associated with disease behavior. In this report, several similarities were found in the biology of HER-2/neu in breast and ovarian cancer, including a similar incidence of amplification, a direct correlation between amplification and over-expression, evidence of tumors in which overexpression occurs without amplification, and the association between gene alteration and clinical outcome. A comprehensive study of the gene and its products (RNA and protein) was simultaneously performed on a large number of both tumor types. This analysis identified several potential shortcomings of the various methods used to evaluate HER-2/neu in these diseases (Southern, Northern, and Western blots, and immunohistochemistry) and provided information regarding considerations that should be addressed when studying a gene or gene product in human tissue. The data presented further support the concept that the HER-2/neu gene may be involved in the pathogenesis of some human cancers.
Rezension zu: Isabelle Stauffer: Weibliche Dandys, blickmächtige Femmes fragiles. Köln u.a.: Böhlau Verlag 2008

Directory of Open Access Journals (Sweden)

Jens F. Heiderich

2009-07-01

Full Text Available Stauffer legt eine hervorragende Studie zu ironischen Inszenierungen geschlechtsspezifischer Topoi vor. Literaturgeschichtlich präzise werden die Geschlechterverwirrungen im Fin de Siècle unter besonderer Berücksichtigung der Werke Annette Kolbs und Franziska zu Reventlows kontextualisiert und mit Hilfe eines eigens entwickelten methodologischen Ansatzes analysiert. Überzeugend kann Stauffer darlegen, dass den Ironisierungen der Femme fragile und der Femme fatale, des Décadents und des Dandy die Funktion zukommt, Geschlecht als Konstruktion zu enthüllen. Avant la lettre werde dadurch Judith Butlers Theorie der subversiven Performativität bestätigt. Für die Beschreibung der damit verbundenen Konstruktionsverfahren hält Stauffer allerdings den Begriff der Ironie für treffender als den von Butler u. a. favorisierten Begriff der Parodie.
Intelligent heat management in cooling modules; Intelligentes Thermomanagement in Kuehlmodulen

Energy Technology Data Exchange (ETDEWEB)

Wilken, H. [Sueddeutsche Kuehlerfabrik Julius F. Behr GmbH und Co. KG, Stuttgart (Germany); Loehle, M. [Sueddeutsche Kuehlerfabrik Julius F. Behr GmbH und Co. KG, Stuttgart (Germany); Bauer, D. [Sueddeutsche Kuehlerfabrik Julius F. Behr GmbH und Co. KG, Stuttgart (Germany)

1995-12-31

The combination of numerous components which transfer heat, transport and conduct air and the corresponding control devices into a single module enables the realisation of additional functions, the increase of quality and the minimisation of weight, volume and cost. The integration of further components provides the opportunity to develop an intelligent thermo-management system. The advantages and capabilities of such a system which has been developed by only one responsible purveyor are explained. (orig.) [Deutsch] Die Zusammenfassung einer Vielzahl waermeuebertragender, luftfoerdernder, luftleitender Komponenten und Regeleinrichtungen in einem einzigen Modul ermoeglicht die Wahrnehmung zusaetzlicher Funktionen, die Steigerung der Qualitaet sowie Minimierung von Gewicht, Volumen und Kosten. Die Integration weiterer Komponenten bietet die Chance der Weiterentwicklung hin zu einem intelligenten Thermomanagementsystem. Vorteile und Moeglichkeiten eines derartigen, in der Hand eines systemverantwortlichen Zulieferers entwickelten Systemes werden aufgezeigt. (orig.)
Evaluation of HER-2/neu status in breast cancer specimens using immunohistochemistry (IHC) & fluorescence in-situ hybridization (FISH) assay.

Science.gov (United States)

Goud, Kalal Iravathy; Dayakar, Seetha; Vijayalaxmi, Kolanupaka; Babu, Saidam Jangu; Reddy, P Vijay Anand

2012-03-01

Fluorescence in situ hybridization (FISH) is increasingly being recognized as the most accurate and predictive test for HER 2/neu gene amplification and response to therapy in breast cancer. In the present study we investigated HER-2/neu gene amplification by FISH in breast carcinoma tissue specimens and compared the results with that of immunohistochemical (IHC) analysis. A total of 90 breast carcinoma tissue samples were used for immunohistochemical (IHC) and FISH analysis. IHC was performed by using mouse monoclonal antibody to the intracellular domain of HER-2/neu protein. Each slide was scored in a blinded fashion by two pathologists according to the manufacturer's recommended criteria. FISH analysis was performed on paraffin embedded breast tumour tissue sections. The polysomy for centromere 17 (Spec green signal) was read as green signals less than 4 as moderate polysomy, and more than 4 as highly polysomy. Thirty of the 90 patients had negative results by IHC and FISH. Of the 28 patients with the score of 2+ by IHC, 20 were FISH positive for HER-2/neu gene amplification, three were FISH negative and five patients showed equivocal (1.8-2.2) results by FISH. These five cases were retested for IHC and FISH on different paraffin embedded tissue blocks, and all five were found positive for HER-2/neu gene amplification. Twenty five patients with the score of 3+ by IHC were FISH positive for HER-2/neu gene amplification (>2.2). Seven cases with the score of 3+ by IHC were FISH negative for HER-2/neu gene amplification (>2.2), and showed polysomy of chromosome number 17 high polysomy > 4. Our results indicated that HER-2/neu status by FISH should be performed in all cases of breast tumour with a 2+ score by IHC. Cases demonstrating a 3+ score by IHC may be subjected to FISH to rule out polysomy of chromosome 17 which could be falsely interpreted as HER-2/neu overexpression by IHC analysis. There is also a need for establishing a clinically validated cut-off value
Energiemessungen bei Aspergillus niger mit Hilfe eines automatischen Mikro-Kompensations-Calorimeters

NARCIS (Netherlands)

Algera, Leendert

1932-01-01

Beschrieben wurde ein Calorimeter. Das Prinzip der Warmemessung besteht darin, dasz die entwickelte Wärme, sobald sie entsteht, durch eine entsprechende Kältemenge kompensiert wird. Sobald die Temperatur des Kulturgefaszes ein wenig ansteigt, wird trockne Luft gepumpt durch ein mit Wasser gefulltes
Murine Sialidase Neu3 facilitates GM2 degradation and bypass in mouse model of Tay-Sachs disease.

Science.gov (United States)

Seyrantepe, Volkan; Demir, Secil Akyildiz; Timur, Zehra Kevser; Von Gerichten, Johanna; Marsching, Christian; Erdemli, Esra; Oztas, Emin; Takahashi, Kohta; Yamaguchi, Kazunori; Ates, Nurselin; Dönmez Demir, Buket; Dalkara, Turgay; Erich, Katrin; Hopf, Carsten; Sandhoff, Roger; Miyagi, Taeko

2018-01-01

Tay-Sachs disease is a severe lysosomal storage disorder caused by mutations in Hexa, the gene that encodes for the α subunit of lysosomal β-hexosaminidase A (HEXA), which converts GM2 to GM3 ganglioside. Unexpectedly, Hexa -/- mice have a normal lifespan and show no obvious neurological impairment until at least one year of age. These mice catabolize stored GM2 ganglioside using sialidase(s) to remove sialic acid and form the glycolipid GA2, which is further processed by β-hexosaminidase B. Therefore, the presence of the sialidase (s) allows the consequences of the Hexa defect to be bypassed. To determine if the sialidase NEU3 contributes to GM2 ganglioside degradation, we generated a mouse model with combined deficiencies of HEXA and NEU3. The Hexa -/- Neu3 -/- mice were healthy at birth, but died at 1.5 to 4.5months of age. Thin-layer chromatography and mass spectrometric analysis of the brains of Hexa -/- Neu3 -/- mice revealed the abnormal accumulation of GM2 ganglioside. Histological and immunohistochemical analysis demonstrated cytoplasmic vacuolation in the neurons. Electron microscopic examination of the brain, kidneys and testes revealed pleomorphic inclusions of many small vesicles and complex lamellar structures. The Hexa -/- Neu3 -/- mice exhibited progressive neurodegeneration with neuronal loss, Purkinje cell depletion, and astrogliosis. Slow movement, ataxia, and tremors were the prominent neurological abnormalities observed in these mice. Furthermore, radiographs revealed abnormalities in the skeletal bones of the Hexa -/- Neu3 -/- mice. Thus, the Hexa -/- Neu3 -/- mice mimic the neuropathological and clinical abnormalities of the classical early-onset Tay-Sachs patients, and provide a suitable model for the future pre-clinical testing of potential treatments for this condition. Copyright © 2017 Elsevier Inc. All rights reserved.
Ueber eine Anomalie von Acromitus flagellatus (Stiasny)

NARCIS (Netherlands)

Stiasny, G.

1934-01-01

Bei erneuter Durchsicht des reichhaltigen Materiales von Acromitus flagellatus (Stiasny) in der Scyphomedusen-Sammlung des Rijksmuseum van Natuurlijke Historie in Leiden (vergl. meine Mitteilungen daruber, 1920, Uebersichtstabelle III und 1921, p. 131/136) fand ich ein Exemplar, das eine
Tracking of [{sup 18}F]FDG-labeled natural killer cells to HER2/neu-positive tumors

Energy Technology Data Exchange (ETDEWEB)

Meier, Reinhard [Department of Radiology, University of California San Francisco (United States)], E-mail: reinhardt.meier@gmail.com; Piert, Morand [Department of Radiology, Division of Nuclear Medicine, University of Michigan (United States); Piontek, Guido; Rudelius, Martina [Institute of Pathology, Klinikum rechts der Isar, Technische Universitaet Muenchen (Germany); Oostendorp, Robert A. [3rd Department of Internal Medicine, Klinikum rechts der Isar, Technische Universitaet Muenchen (Germany); Senekowitsch-Schmidtke, Reingard [Department of Nuclear Medicine, Klinikum rechts der Isar, Technische Universitaet Muenchen (Germany); Henning, Tobias D. [Department of Radiology, University of California San Francisco (United States); Wels, Winfried S.; Uherek, Christoph [Chemotherapeutisches Forschungsinstitut, Georg-Speyer-Haus, Frankfurt am Main (Germany); Rummeny, Ernst J. [Department of Radiology, Klinikum rechts der Isar, Technische Universitaet Muenchen (Germany); Daldrup-Link, Heike E. [Department of Radiology, University of California San Francisco (United States)

2008-07-15

Introduction: The objective of this study was to label the human natural killer (NK) cell line NK-92 with [{sup 18}F]fluoro-deoxy-glucose (FDG) for subsequent in vivo tracking to HER2/neu-positive tumors. Methods: NK-92 cells were genetically modified to NK-92-scFv(FRP5)-zeta cells, which express a chimeric antigen receptor that is specific to the tumor-associated ErbB2 (HER2/neu) antigen. NK-92 and NK-92-scFv(FRP5)-zeta cells were labeled with [{sup 18}F]FDG by simple incubation at different settings. Labeling efficiency was evaluated by a gamma counter. Subsequently, [{sup 18}F]FDG-labeled parental NK-92 or NK-92-scFv(FRP5)-zeta cells were intravenously injected into mice with implanted HER2/neu-positive NIH/3T3 tumors. Radioactivity in tumors was quantified by digital autoradiography and correlated with histopathology. Results: The NK-92 and NK-92-scFv(FRP5)-zeta cells could be efficiently labeled with [{sup 18}F]FDG by simple incubation. Optimal labeling efficiencies (80%) were achieved using an incubation period of 60 min and additional insulin (10 IU/ml). After injection of 5x10{sup 6} [{sup 18}F]FDG-labeled NK-92-scFv(FRP5)-zeta cells into tumor-bearing mice, digital autoradiography showed an increased uptake of radioactivity in HER2/neu-positive tumors at 60 min postinjection. Conversely, injection of 5x10{sup 6} NK-92 cells not directed against HER2/neu receptors did not result in increased uptake of radioactivity in the tumors. Histopathology confirmed an accumulation of the NK-92-scFv(FRP5)-zeta cells, but not the parental NK cells, in tumor tissues. Conclusion: The human NK cell line NK-92 can be directed against HER2/neu antigens by genetic modification. The genetically modified NK cells can be efficiently labeled with [{sup 18}F]FDG, and the accumulation of these labeled NK cells in HER2/neu-positive tumors can be monitored with autoradiography.
HER-2/neu and CD117 (c-kit overexpression in patients with pesticide exposure and extensive stage small cell lung carcinoma (ESSCLC

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Potti Anil

2005-06-01

Full Text Available Abstract Background The rate of detection of HER-2/neu and CD117 (c-kit overexpression in small cell lung cancer (SCLC has varied widely; between 5–35% and 21–70% respectively. Methods To evaluate the relationship between pesticide exposure and HER-2/neu and CD117 overexpression in extensive stage SCLC (ESSCLC, we identified patients with ESSCLC and assessed pesticide exposure using a predetermined questionnaire. An exposure index (hours/day × days/year × years ≥ 2400 hours was considered as 'exposed.' HER-2/neu overexpression was evaluated on archival tissue using the DAKO Hercep test, and CD117 testing was performed using immunohistochemistry (A4052 polyclonal antibody. Results 193 ESSCLC patients were identified. Pesticide exposure data could be obtained on 174 patients (84 females and 109 males with a mean age of 68.5 years. 53/174 (30.4% revealed HER-2/neu overexpression. 54/174 (31.03% specimens showed CD117 overexpression by IHC. On multivariate analysis, HER-2/neu overexpression was associated with diminished survival (p neu overexpression and 47/121 (38.8% patients without overexpression had exposure to pesticides (odds ratio: 5.38; p Conclusion Pesticide exposure affects HER-2/neu but not CD117 overexpression. Future studies are needed to determine specific pesticide(s/pesticide components that are responsible for HER-2/neu overexpression in ESSCLC, and to validate our findings in other solid tumors that overexpress HER-2/neu.
Inhibition of Cell Growth and Induction of Apoptosis by Antrodia camphorata in HER-2/neu-Overexpressing Breast Cancer Cells through the Induction of ROS, Depletion of HER-2/neu, and Disruption of the PI3K/Akt Signaling Pathway

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Chuan-Chen Lee

2012-01-01

Full Text Available Previously, we demonstrated that a submerged fermentation culture of Antrodia camphorata (AC promotes cell-cycle arrest and apoptosis in human estrogen receptor-positive/negative breast cancer cells. However, whether AC is effective against HER-2/neu-overexpressing breast cancers has not been thoroughly elucidated. In the present study, we showed that AC exhibited a significant cytotoxic effect against HER-2/neu-overexpressing MDA-MB-453 and BT-474 cells. Immunoblot analysis demonstrated that HER-2/neu and their tyrosine phosphorylation were inhibited by AC in a dose-dependent manner. An increase in intracellular reactive oxygen species (ROS was observed in AC-treated cells, whereas antioxidant N-acetylcysteine (NAC significantly prevented AC induced HER-2/neu depletion and cell death, which directly indicates that AC-induced HER-2/neu depletion and cell death was mediated by ROS generation. Also, AC significantly downregulated the expression of cyclin D1, cyclin E, and CDK4 followed by the suppression of PI3K/Akt, and their downstream effectors GSK-3β and β-catenin. Notably, AC-treatment induced apoptotic cell death, which was associated with sub-G1 accumulation, DNA fragmentation, mitochondrial dysfunction, cytochrome c release, caspase-3/-9 activation, PARP degradation, and Bcl-2/Bax dysregulation. Assays for colony formation also confirmed the growth-inhibitory effects of AC. This is the first report confirming the anticancer activity of this potentially beneficial mushroom against human HER-2/neu-overexpressing breast cancers.

Gestaltung und Erforschung eines Mixed Reality Lernsystems.

NARCIS (Netherlands)

Hochberg, Jana; Vogel, Cathrin; Bastiaens, Theo

2018-01-01

In diesem Artikel wird ein Entwurf eines Lernsystems vorgestellt, in welchem Mixed- Reality (MR) Technologien und didaktischen Modelle für den Einsatz in der industriellen Weiterbildung kombiniert werden. Mit diesem System soll das Erlernen von Problemlösekompetenzen über visuelle Einblendung
Deutsches Wortgut in rumänischen Pflanzennamen. Ein Bericht aus ...

African Journals Online (AJOL)

vorgehoben wird (da der einzelne Sprecher Schöpfer der Sprache/Poesie wurde, wann immer er eine Blume nannte). Unserer Meinung nach ist ein botanisches Lexikon einer bestimmten Region, einmal bekannt, nicht nur ein Thesaurus, aber auch ...
Grand Prix Eurovision: Eine Fankultur im Medienzeitalter

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Heinz Moser

2017-06-01

Full Text Available Der Grand Prix Eurovision ist seit Jahrzehnten eine der bekanntesten Unterhaltungssendungen im europäischen Raum. Dennoch erregte es Verwunderung, wenn der Schreibende Bekannten darüber berichtete, daß dies ein Forschungsgegenstand sei. Wurde von Interviews mit Grand Prix-Fans erzählt, so fielen schnell Aussagen wie: „Wie kann man sich nur für so etwas Abseitiges und Triviales wie den Grand Prix interessieren“. Dennoch bin ich der Meinung, daß Fankulturen für die entstehende Mediengesellschaft ein nicht unwichtiges Forschungsthema darstellen. Zwar geht es nicht um eine medienpädagogische Fragestellung im engeren Sinne; die Fans des Grand Prix Eurovision sind dem Jugendalter längst entwachsen. Dennoch handelt es sich bei Fangemeinschaften um Phänomene, die im Rahmen von Jugend- und Kinderkulturen von besonderer Relevanz sind. So meint Winter (1997, daß jugendliche Fanwelten eine bedeutende Rolle als Kristallisationspunkte kultureller Differenzierung spielen: ,Die Zugehörigkeit zu einer Fan weit ist Teil der jugendlichen Lebensbewältigung in der Postmoderne, denn in der Gemeinschaft der Fans können Jugendliche emotionale Allianzen eingehen, außeralltäglichen Beschäftigungen nachgehen, expressive Identitätsmuster gemeinschaftlich realisieren und sich mit ihrer Lebenssituation als Heranwachsende auseinandersetzen“ (Winter 1997, S. 51f..
Gedenken, Geschichte und Versöhnung in Südafrika und Zimbabwe

OpenAIRE

Marx, Christoph

2006-01-01

'Die Gesellschaft Südafrikas hat sich nach der Überwindung der Apartheid mit der Einrichtung einer Wahrheits- und Versöhnungskommission auf eine wichtige öffentliche Debatte über ihre Vergangenheit eingelassen. Der Kontext dieser Debatte und die Vorgabe, dass die Beschäftigung mit der Vergangenheit in die Bildung einer neuen Nation münden solle, führten indes dazu, dass sich neue Formen von Inklusion und Exklusion entwickelten. Da Identität nur über die Betonung von Differenz möglich ist, läs...
Local Dynamic Map als modulares Software Framework für Fahrerassistenzsysteme

Science.gov (United States)

Reisdorf, P.; Auerswald, A.; Wanielik, G.

2015-11-01

Moderne Fahrerassistenzsysteme basieren auf der Verarbeitung von Informationen, welche durch die Umfeldwahrnehmung mit unterschiedlicher Sensorik erfolgt. Neben den Informationen aus dem eigenen Fahrzeug ergeben sich durch unterschiedliche Kommunikationsmöglichkeiten (Car2Car, Car2X,...) erweiterte Umfeldwahrnehmungen (siehe Abb. 1). Diese Daten gilt es aufbereitet und zielorientiert einer Anwendung zur Verfügung zu stellen, was mit Hilfe einer Local Dynamic Map (LDM) erfüllt werden kann. Die vorliegende Veröffentlichung beschreibt den Aufbau, Verwendungszweck und Eigenschaften einer entwickelten LDM und geht auf einige Applikationen ein, die mit Hilfe dieser realisiert wurden.
Review: Anja Weiß (2001). Rassismus wider Willen. Ein anderer Blick auf eine Struktur sozialer Ungleichheit

OpenAIRE

Bremer, Helmut

2002-01-01

Die Arbeit liefert einen Beitrag zur Debatte um Rassismus und Interkulturalität sowie zur Anwendung qualitativer Forschungsverfahren im Rahmen der Theorie BOURDIEUs. Rassismus und Anti-Rassismus werden nicht isoliert betrachtet, sondern als eine Dimension sozialer Ungleichheit, die in eine umfassende Theorie sozialer Ungleichheit eingebunden werden muss. Vorgeschlagen wird BOURDIEUs Konzept von Habitus, Feld und Kapital. Das ermöglicht einen anderen Blick auf das Phänomen. Rassismus reproduzi...
Konstruktion, Analyse und Inbetriebnahme eines Gelenks zur rotatorischen Entkopplung für ein UAV-Helikopter-Landesystem

OpenAIRE

Pham, Viet Duc

2015-01-01

Im Rahmen dieser Bachelorarbeit werden für ein Helikopter-Landesystem mehrere Gelenke entworfen, welche bei geschlossenem Kontakt ein unbemanntes Flugfahrzeug (UAV) und einen Manipulator rotatorisch entkoppeln und nur die translatorischen Freiheitsgrade des UAVs einschränken. Einzelne Komponenten der Konstruktion werden mithilfe von 3D-Druck-Verfahren gefertigt. Anschließend werden die Entwürfe kinematisch untersucht und verglichen. Das im Hinblick auf Arbeitsraum, Leichtgängigkeit, Gewicht u...
Genomic activation of the EGFR and HER2-neu genes in a significant proportion of invasive epithelial ovarian cancers

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Ghislain Vanessa

2008-01-01

Full Text Available Abstract Background The status of the EGFR and HER2-neu genes has not been fully defined in ovarian cancer. An integrated analysis of both genes could help define the proportion of patients that would potentially benefit from targeted therapies. Methods We determined the tumour mutation status of the entire tyrosine kinase (TK domain of the EGFR and HER2-neu genes in a cohort of 52 patients with invasive epithelial ovarian cancer as well as the gene copy number and protein expression of both genes in 31 of these patients by DGGE and direct sequecing, immunohistochemistry and Fluorescent in Situ Hybridisation (FISH. Results The EGFR was expressed in 59% of the cases, with a 2+/3+ staining intensity in 38%. HER2-neu expression was found in 35%, with a 2/3+ staining in 18%. No mutations were found in exons 18–24 of the TK domains of EGFR and HER2-neu. High polysomy of the EGFR gene was observed in 13% of the invasive epthelial cancers and amplification of the HER2-neu gene was found in 10% and correlated with a high expression level by immunohistochemistry. Mutations within the tyrosine kinase domain were not found in the entire TK domain of both genes, but have been found in very rare cases by others. Conclusion Genomic alteration of the HER2-neu and EGFR genes is frequent (25% in ovarian cancer. EGFR/HER2-neu targeted therapies should be investigated prospectively and specifically in that subset of patients.
Relativitätstheorie ein Sachcomic

CERN Document Server

Bassett, Bruce

2012-01-01

E = mc² – so einfach ist eine Revolution! Nichts ist schneller als Licht! Wie lange noch? Was fangen wir mit einer vierten Dimension an und mit krummen Räumen? Einstein gilt als größter Physiker der Neuzeit, das amerikanische Magazin „Time“ machte ihn sogar zum Mann des Jahrhunderts. Einstein ist das Lieblingsgenie vieler Menschen: ein Radikaler im wissenschaftlichen Arbeiten und engagierter sozialistischer Pazifist. Es ist nun gut hundert Jahre her, seit Einsteins Relativitätstheorie unseren Blick auf Raum, Zeit und Materie revolutionierte. Einsteins Gedankenexperimente sind berüchtigt für ihre Komplexität, aber sie bieten fesselnde Beschreibungen der Grundlagen, auf denen die Welt funktioniert. Relativitätstheorie und Quantentheorie sind die zwei Hauptsäulen der modernen Physik. Dieser Sachcomic nimmt Sie mit auf eine unterhaltsame Bildungsreise durch Raum und Zeit vorbei an Schwarzen Löchern und quer durch Gravitationsfelder (Je schneller Sie lesen, desto jünger werden Sie!!). Sie werden ...
Überlegungen zu einer entrepreneur-orientierten Ausbildung an gewerblichen Fachschulen: eine Bestandsaufnahme mit Vorschlägen für eine Ergänzung des Curriculums

OpenAIRE

Hartmann, Falk

2010-01-01

In der Arbeit wird untersucht ob eine Ausbildung zum Entrepreneur, also zur Selbständigkeit möglich ist und es wird ein geeigneter curricularer Ansatz gesucht eine Entrepreneurship Education in die Ausbildung zum staatlich geprüften Techniker Maschinentechnik zu integriereren.
EIN2 mediates direct regulation of histone acetylation in the ethylene response.

Science.gov (United States)

Zhang, Fan; Wang, Likai; Qi, Bin; Zhao, Bo; Ko, Eun Esther; Riggan, Nathaniel D; Chin, Kevin; Qiao, Hong

2017-09-19

Ethylene gas is essential for developmental processes and stress responses in plants. Although the membrane-bound protein EIN2 is critical for ethylene signaling, the mechanism by which the ethylene signal is transduced remains largely unknown. Here we show the levels of H3K14Ac and H3K23Ac are correlated with the levels of EIN2 protein and demonstrate EIN2 C terminus (EIN2-C) is sufficient to rescue the levels of H3K14/23Ac of ein2 -5 at the target loci, using CRISPR/dCas9-EIN2-C. Chromatin immunoprecipitation followed by deep sequencing (ChIP-seq) and ChIP-reChIP-seq analyses revealed that EIN2-C associates with histone partially through an interaction with EIN2 nuclear-associated protein1 (ENAP1), which preferentially binds to the genome regions that are associated with actively expressed genes both with and without ethylene treatments. Specifically, in the presence of ethylene, ENAP1-binding regions are more accessible upon the interaction with EIN2, and more EIN3 proteins bind to the loci where ENAP1 is enriched for a quick response. Together, these results reveal EIN2-C is the key factor regulating H3K14Ac and H3K23Ac in response to ethylene and uncover a unique mechanism by which ENAP1 interacts with chromatin, potentially preserving the open chromatin regions in the absence of ethylene; in the presence of ethylene, EIN2 interacts with ENAP1, elevating the levels of H3K14Ac and H3K23Ac, promoting more EIN3 binding to the targets shared with ENAP1 and resulting in a rapid transcriptional regulation.
Her-2 neu (Cerb-B2) expression in fine needle aspiration samples of breast carcinoma: A pilot study comparing FISH, CISH and immunocytochemistry.

Science.gov (United States)

Kapila, Kusum; Al-Awadhi, S; Francis, Im

2011-04-01

Breast cancers with Her-2 neu gene amplification are recognized as important markers for aggressive disease and targets which respond to therapy with trastuzumab. Her-2 neu testing on histological sections is routinely performed to select patients who may benefit from anti- Her-2 neu therapy. Few reports are available which document Her-2 neu status on fine needle aspirates (FNA). This pilot study is to document expression of Her-2 neu (Cerb-B2) on cytospin smears from FNA of patients with breast carcinoma. Twenty samples of FNA already collected for diagnostic purposes from patients with primary breast carcinoma were studied for demonstration of Her-2 neu expression by immunohistochemistry (IHC), Fluorescent in-situ hybridization (FISH) and chromogenic in-situ hybridization (CISH) on cytospin smears from FNA. Their expression was compared with tissue sections where possible. Good correlation was observed between Her-2 neu protein expression and gene amplification in cytospin smears. Three of five (60%) breast carcinomas cases with 2+ and 3+ staining on IHC showed gene amplification by FISH and CISH. Three of 7 (43%) and 5 of 7 (71%) cases negative/1+ staining on IHC did not show gene amplification by FISH and CISH respectively. Tissue sections from 10 cases with 2+ and 3+ staining for Her2neu by IHC showed gene amplification in 8 cases. Demonstration of Her-2 neu by IHC, FISH or CISH in FNA is possible and may play a role in the management of patients with advanced breast cancer or those cases where surgical resection is not advisable.
Concordance Between FISH Analysis of Her-2/Neu Gene in Breast Duct Carcinoma and Corresponding Axillary Nodal Metastases: Egyptian National Cancer Institute Experience.

Science.gov (United States)

Badawy, Omnia M; Hassan, Hannan; ELBakey, Heba A; Mosaad, Maha

2018-05-10

Breast cancer is a major health problem in Egypt. Her-2/Neu gene is routinely assessed for all breast cancer patients primarily by immunohistochemistry. At National Cancer Institute (NCI), Cairo University, Flourescence In Situ hybridization (FISH) analysis of Her-2/Neu gene is carried out for Her-2/Neu score 2 and for some cases of score 3 (particularly those assessed outside NCI). The test is performed essentially on the primary tumor. However, some situations require testing on corresponding lymph node metastases. There is a debate about the concordance between Her-2/Neu status in the primary tumor and synchronous lymph node metastases in various studies. The aim of this study was to test for the concordance between Her-2/Neu status in the primary breast tumor and corresponding axillary nodal metastases. This is a retrospective study in which FISH analysis of Her-2/Neu was carried out simultaneously on archived material of 50 cases previously diagnosed as invasive duct carcinoma and the corresponding nodal metastases from the Pathology Department, NCI. There was complete concordance between Her-2 status in the primary tumor and the corresponding axillary lymph node metastatic deposits in which Her-2 was amplified in 44% of the studied cohort of Egyptian patients. Her-2/Neu gene assessed by FISH analysis on synchronous lymph node metastases is strongly correlated with the primary tumor. Hence, it is justified to carry out the Her-2/Neu test on synchronous lymph nodes to decide on whether to carry out anti-Her-2/Neu target therapy. Further studies on other metastatic sites is recommended.
Human epidermal growth factor receptor 2/neu overexpression in urothelial carcinoma of the bladder and its prognostic significance: Is it worth hype?

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Santosh Kumar

2015-01-01

Full Text Available Aims: In urothelial tumors of the urinary bladder, human epidermal growth factor receptor 2 (HER-2/neu expression has been reported over 10 years, but there is no clear correlation between prognosis and recurrence rate. The present study evaluates prognostic implication of HER-2/neu expression. Subjects and Methods: In this study, 100 formalin-fixed paraffin-embedded specimens of primary transitional cell carcinoma of the bladder were processed. HER-2/neu monoclonal antibody immunohistochemistry staining procedure used for the study. Results: A total of 70 (70% patients were positive for overexpression of HER-2/neu. HER-2/neu was positive in patients with 42 (70% superficial tumor, 28 (70% muscle invasive tumor, 41 (75.9% high-grade tumor, 29 (63% low grade tumor, 31 (68.9% recurrent tumor, and 6 (66.6% had positive lymph nodes. Conclusions: Human epidermal growth factor receptor 2/neu over expression was not correlated with the tumor stage, lymphnode metastasis or recurrence of the disease. HER-2/neu overexpression was statistically insignificantly correlated with the differentiation grade (P < 0.161 as compared to previous studies. Future studies on HER-2 expression with chemo-sensitivity and efficacy of HER-2-targeted therapies in urothelial carcinomas is needed.
Optimizing biological waste water cleaning by means of modern control systems (fuzzy logic); Optimierung der biologischen Abwasserreinigung durch moderne Regelsysteme (Fuzzy-Logik)

Energy Technology Data Exchange (ETDEWEB)

Lohse, M.; Boening, T.; Hegemann, G. [Fachhochschule Muenster (Germany). Inst. fuer Abfall- und Abwasserwirtschaft e.V.

1999-07-01

Within the framework of a project sponsored by EUREGIO, test series with the biological activation stages of a German and a Dutch sewage treatment plant each are carried out using different process concepts for the control of oxygen supply by fuzzy logic. As the currently available results demonstrate, the developed fuzzy-logic fields of characteristic curves permit establishing a stable and, thus, little energy-consuming process with optimum oxygen supply in comparison with conventional control. (orig.) [German] Im Rahmen eines von der EUREGIO gefoerderten Forschungsprojektes werden Versuchsreihen im Bereich der biologischen Belebungsstufen einer deutschen und einer niederlaendischen Abwasserreinigungsanlage (ARA) mit unterschiedlichen Verfahrenskonzepten hinsichtlich der Regelung der Sauerstoffzufuhr mit Hilfe der Fuzzy-Logik Technik durchgefuehrt. Die bisherigen Versuchsergebnisse zeigen, dass - im Vergleich zur konventionellen Regelung - durch die entwickelten Fuzzy-Logik Kennfelder ein stabiler und damit energiearmer Prozess mit optimaler Sauerstoffzufuhr erzeugt wird. (orig.)
Hin zu Utopia - eine empirische Spekulation

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Wolfgang Frindte

2017-04-01

Full Text Available Hin zu Utopia - eine empirische Spekulation (von Wolfgang Frindte & Nico Dietrich Der vorliegende Text nutzt Befunde, die die Autoren im Rahmen einer Studie zu Einstellungen gegenüber Muslimen und dem Islam erhoben haben (Frindte/Dietrich 2017, um über die Möglichkeit einer kosmopolitischen Utopie zu spekulieren und nach den Akteuren der Zukunft und den künftigen Gestaltern eines friedlichen und menschenfreundlichen europäischen Kontinents zu fahnden. Im Ergebnis ihrer Suche kommen die Autoren zu dem Schluss: Es gibt noch immer gebildete und politisch informierte Menschen, die eine positive Sicht auf ethnische Minderheiten, Flüchtlinge im Allgemeinen und Muslime im Besonderen haben, autoritäre und machtorientierte Gesellschaftsstrukturen ablehnen und sich mit Europa identifizieren. Auf ihren persönlichen Einsatz, ihre Entschlossenheit, ihren Zusammenhalt über die Zeit und ihre Zukunftsorientierung kommt es an.
The vitamin E analog, alpha-tocopheryloxyacetic acid enhances the anti-tumor activity of trastuzumab against HER2/neu-expressing breast cancer

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Penichet Manuel L

2011-11-01

Full Text Available Abstract Background HER2/neu is an oncogene that facilitates neoplastic transformation due to its ability to transduce growth signals in a ligand-independent manner, is over-expressed in 20-30% of human breast cancers correlating with aggressive disease and has been successfully targeted with trastuzumab (Herceptin®. Because trastuzumab alone achieves only a 15-30% response rate, it is now commonly combined with conventional chemotherapeutic drugs. While the combination of trastuzumab plus chemotherapy has greatly improved response rates and increased survival, these conventional chemotherapy drugs are frequently associated with gastrointestinal and cardiac toxicity, bone marrow and immune suppression. These drawbacks necessitate the development of new, less toxic drugs that can be combined with trastuzumab. Recently, we reported that orally administered alpha-tocopheryloxyacetic acid (α-TEA, a novel ether derivative of alpha-tocopherol, dramatically suppressed primary tumor growth and reduced the incidence of lung metastases both in a transplanted and a spontaneous mouse model of breast cancer without discernable toxicity. Methods In this study we examined the effect of α-TEA plus HER2/neu-specific antibody treatment on HER2/neu-expressing breast cancer cells in vitro and in a HER2/neu positive human xenograft tumor model in vivo. Results We show in vitro that α-TEA plus anti-HER2/neu antibody has an increased cytotoxic effect against murine mammary tumor cells and human breast cancer cells and that the anti-tumor effect of α-TEA is independent of HER2/neu status. More importantly, in a human breast cancer xenograft model, the combination of α-TEA plus trastuzumab resulted in faster tumor regression and more tumor-free animals than trastuzumab alone. Conclusion Due to the cancer cell selectivity of α-TEA, and because α-TEA kills both HER2/neu positive and HER2/neu negative breast cancer cells, it has the potential to be effective and
HER2/neu (c-erbB-2) gene amplification and protein expression are rare in uterine cervical neoplasia: a tissue microarray study of 814 archival specimens

DEFF Research Database (Denmark)

Lesnikova, Iana; Lidang, Marianne; Hamilton-Dutoit, Stephen

2009-01-01

intraepithelial neoplasia (CIN)1 (n = 262), CIN2 (n = 230), CIN3 (n = 186) and invasive carcinoma (n = 136), for HER2/neu protein expression by immunohistochemistry (IHC) and for HER2/neu gene amplification by chromogenic in situ hybridization (CISH). We found moderate or strong immunohistochemical positivity...... and invasive cervical carcinoma specimens. When present, Her-2/neu positivity is more commonly seen in higher grades of cervical dysplasia and in carcinoma. However, this large TMA study shows that HER2/neu oncoprotein expression and HER2/neu gene amplification overall are uncommon events in cervical neoplasia....... This provides compelling evidence that HER2/neu plays no major role in the development and progression of cervical neoplasia....
Her-2 neu (Cerb-B2 expression in fine needle aspiration samples of breast carcinoma: A pilot study comparing FISH, CISH and immunocytochemistry

Directory of Open Access Journals (Sweden)

Kusum Kapila

2011-01-01

Full Text Available Background: Breast cancers with Her-2 neu gene amplification are recognized as important markers for aggressive disease and targets which respond to therapy with trastuzumab. Her-2 neu testing on histological sections is routinely performed to select patients who may benefit from anti- Her-2 neu therapy. Few reports are available which document Her-2 neu status on fine needle aspirates (FNA. Aim: This pilot study is to document expression of Her-2 neu (Cerb-B2 on cytospin smears from FNA of patients with breast carcinoma. Materials and Methods: Twenty samples of FNA already collected for diagnostic purposes from patients with primary breast carcinoma were studied for demonstration of Her-2 neu expression by immunohistochemistry (IHC, Fluorescent in-situ hybridization (FISH and chromogenic in-situ hybridization (CISH on cytospin smears from FNA. Their expression was compared with tissue sections where possible. Results: Good correlation was observed between Her-2 neu protein expression and gene amplification in cytospin smears. Three of five (60% breast carcinomas cases with 2+ and 3+ staining on IHC showed gene amplification by FISH and CISH. Three of 7 (43% and 5 of 7 (71% cases negative/1+ staining on IHC did not show gene amplification by FISH and CISH respectively. Tissue sections from 10 cases with 2+ and 3+ staining for Her2neu by IHC showed gene amplification in 8 cases. Conclusion: Demonstration of Her-2 neu by IHC, FISH or CISH in FNA is possible and may play a role in the management of patients with advanced breast cancer or those cases where surgical resection is not advisable.
Neratinib shows efficacy in the treatment of HER2/neu amplified uterine serous carcinoma in vitro and in vivo.

Science.gov (United States)

Schwab, Carlton L; English, Diana P; Roque, Dana M; Bellone, Stefania; Lopez, Salvatore; Cocco, Emiliano; Nicoletti, Roberta; Rutherford, Thomas J; Schwartz, Peter E; Santin, Alessandro D

2014-10-01

Uterine serous carcinoma (USC) represents an aggressive variant of endometrial cancer and accounts for a large proportion of deaths annually. HER2/neu amplification is associated with USC in approximately 30-35% of cases. The objective of this study was to determine the sensitivity of a panel of primary USC cell lines to the small tyrosine kinase inhibitor neratinib, an ErbB1 and HER2 inhibitor, both in vitro and in vivo. HER2/neu amplification was determined by immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH) in 24 USC cell lines. Flow cytometry was used to determine the effects of neratinib on cell viability, cell cycle distribution and signaling in vitro. Mice harboring HER2/neu amplified xenografts were treated with neratinib to assess the efficacy of the drug in vivo. HER2/neu amplification was noted in 8/24 primary cell lines. Data regarding the efficacy of neratinib was determined using 4 HER2 amplified cell lines and 4 non-amplified cell lines with similar growth rates. Data revealed that cell lines with HER2/neu amplification were exquisitely more sensitive to neratinib compared to non-amplified cell lines (mean ± SEM IC50: 0.011μM ± 0.0008 vs. 0.312μM ± 0.0456 pNeratinib caused arrest in the G0/G1 phase of the cell cycle and resulted in decreased autophosphorylation of HER2 and activation of S6. Neratinib treated mice harboring xenografts of HER2/neu amplified USC showed delayed tumor growth and improved overall survival compared to vehicle (p=0.0019). Neratinib may be a potential treatment option for patients harboring HER2/neu amplified USC. Clinical trials for this subset of endometrial cancer patients are warranted. Copyright © 2014 Elsevier Inc. All rights reserved.

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