cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Extension of formability of the magnesium wrought alloy AZ31B-O at room temperature by pulse magnetic forming
Creators: name: Uhlmann, E.
name: Prasol, L.
name: Kawalla, R.
name: Schmidt, C.
name: Becker, T.
Publisher: name: Technische Universität Dortmund
Year: 2014
Subjects: subject: pulse magnetic forming
subject: plane strain formability
subject: magnesium AZ31
subject: 620
subject: 670

description: For having the lowest density of all metal construction materials of 1.75 kg/dm3, magnesium wrought alloys are outstanding lightweight materials. The low formability at room temperature limits the industrial use of magnesium AZ31B-O. In this paper the influence of high strain rates was investigated with the aim to improve the formability of the alloy AZ31B-O at room temperature. The negative strain rate sensitivity of quasi-static strain rates causes an early loss of material stability due to formation of local deformation zones on the work piece surface. This leads to a low formability in the forming state of plane strain, in which the forming limit (FLC) of magnesium alloy AZ31B-O has a critical minimum. For process illustration of multi-axial stress states - which appear in conventional forming processes - the pulse magnetic forming process is used. To create plane strain formability a flat coil is used. The applied die is used to control the free formability. Hereby, a change of the maximum loads on the power transfer zone to areas of plane strain formability occurs. The results that have been achieved show that high strain rates at room temperature increase the permitted loads of the material with plane strain formability significantly. High speed forming is linked to a rising strain rate sensitivity which increases the flow resistance in critical forming areas, in favor of a rising material stability. This fact is represented by equally reduction of the sheet thickness on the power transfer area. The homogeneous work piece stress clearly increases the formability of AZ31B-O at room temperature compared to quasi-static forming process.
Influence of high- and low-fermentable dietary fibres in sows' diet on the colostrum potential against Clostridioides difficile toxin-induced effects in IPEC-J2 cells
Creators: name: Grześkowiak, Łukasz
name: Vahjen, Wilfried
name: Zentek, Jürgen
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: lignocellulose
subject: piglet
subject: sugar beet pulp
subject: TEER
subject: viability
subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft::630 Landwirtschaft und verwandte Bereiche

description: Sow colostrum has been reported to protect the IPEC-J2 cells and piglet colon tissues from detrimental effect of Clostridioides difficile toxins. Since dietary fibre can influence the colostrum composition in sows, we hypothesised that it can also differentially affect the colostrum potential against C. difficile toxin-induced effects in IPEC-J2. IPEC-J2 were incubated with colostrum from sows fed either high-fermentable sugar beet pulp (SBP) or low-fermentable lignocellulose (LNC) fibres and in combination with the toxins and analysed by trans-epithelial electrical resistance (TEER) and cell viability using propidium iodide in flow cytometry. Toxins drastically decreased the integrity of IPEC-J2. Colostrum from the sows fed either SBP or LNC exerted protective effect against toxins on IPEC-J2 integrity and this effect was numerically superior in the SBP group. Differences in the percentages of TEER between different treatments were noted after 2 h (p = 0.043), 3 h (p = 0.017) and 4 h (p = 0.017) of incubation and a tendency for differences was noted after 5 h of incubation (p = 0.071). Colostrum from either SBP- or LNC-fed sows did not protect the IPEC-J2 from toxin-induced death. Colostrum of the sows fed either high-fermentable or low-fermentable fibres has a potential to protect IPEC-J2 from the loss of integrity, which may be important in protection from C. difficile-infection development in neonatal piglets.
title: Erbsenanbaupotentiale für erbsenbasierte Fleischalternativen in Deutschland
Creators: name: Kezeya, Bruno
name: Stauss, Wolfgang
name: Mergenthaler, Marcus
Publisher: name: Fachhochschule Südwestfalen
Year: 2019
Subjects: subject: 630

description: Forschungsnotizen des Fachbereichs Agrarwirtschaft Soest, vol. 28
title: Weiterbildung zur Schadnagerbekämpfung in rinderhaltenden Betrieben in NRW
Creators: name: Bongard, Helene
name: Beringhoff, Hanna
name: Boelhauve, Marc
name: Hecker, Odile
name: Mergenthaler, Marcus
Publisher: name: Fachhochschule Südwestfalen
Year: 2019
Subjects: subject: 630

description: Forschungsnotizen des Fachbereichs Agrarwirtschaft Soest, vol. 25
title: Bekanntheit eingesetzter Wirkstoffe und Präparate der Schadnagerbekämpfung in Abhängigkeit von der Weiterbildung von Rinderhaltern in NRW
Creators: name: Bongard, Helene
name: Beringhoff, Hanna
name: Boelhauve, Marc
name: Hecker, Odile
name: Mergenthaler, Marcus
Publisher: name: Fachhochschule Südwestfalen
Year: 2019
Subjects: subject: 630

description: Forschungsnotizen des Fachbereichs Agrarwirtschaft Soest, vol. 26
Experimental Study on Electromagnetic Forming of High Strength Steel Sheets with Different Dimensions of Aluminum Driver Plate
Creators: name: Park, Hyeon Il
name: Kim, Daeyong
name: Lee, Jinwoo
name: Kim, Ji Hoon
name: Lee, Myoung-Gyu
name: Lee, Youngseon
name: Song, Jung Han
Publisher: name: Technische Universität Dortmund
Year: 2014
Subjects: subject: reinforcement rib
subject: aluminum driver plate
subject: electromagnetic forming
subject: flat spiral coil
subject: high strength steel sheet
subject: 620
subject: 670

description: Recently, the potential of the electromagnetic forming process has been introduced to form the shallow longitudinal reinforcement ribs in the lateral walls of roll formed parts, made of high strength steel sheets of 340MPa tensile stress grade [1]. However, it seems that the application may not be easy for high strength steel sheet because of its high tensile strength and low electric conductivity. In order to overcome this difficulty, aluminum driver plate could be considered to enhance the formability of high strength steel sheets in the electromagnetic forming process. In this paper, in order to investigate the effect of aluminum driver plate on forming height of high strength steel sheet in electromagnetic forming process, DP780 workpiece sheets were formed into a hemi elliptical protrusion shape with Al1050 driver plate of various thicknesses and sizes. Experiments were performed with a flat spiral coil actuator connected to an electromagnetic forming system. The results, the aluminum driver plate helps to increase the forming height of high strength steel sheets. In addition, the forming height of high strength steel sheet increases as the thickness and size of a driver plate increases.
Sonnenfleckenzeichnung Nr. 319.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 25.12.2003, 09:30, erstellt von Elena Altoni
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2003

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
0035 New information on the 19th century provenance of Albertinelli's Old Testament cycle
Creators: name: Dulibić, Ljerka
name: Pasini Tržec, Ina
Publisher: name: RIHA Journal
Year: 2019

description: Analysis of the correspondence of Bishop J. J. Strossmayer and his agents, and of W. Buchanan and his agents, has provided new evidence of the 19th century provenance of Mariotto Albertinelli's paintings The Expulsion from Paradise in the Strossmayer Gallery in Zagreb, and The Creation and Fall of Man in the Courtauld Institute of Art Gallery in London. The material analysed provides an insight into the then common practice of fragmenting artworks, sometimes very violently, and enables a revision of some assumptions and claims concerning the fate of the two paintings by Albertinelli, ultimately suggesting some guidelines for conclusions as to the original appearance of his Old Testament cycle.
description: RIHA Journal, 2012: Riha Journal: Articles 0033-0062
Sonnenfleckenzeichnung Nr. 96.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 10.04.2003, 15:45, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2003

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Hydrodynamic modeling of ephemeral flow in the Iishana channel systems of the Cuvelai Basin—Northern Namibia
Creators: name: Arendt, Robert
name: Reinhardt-Imjela, Christian
name: Faulstich, Leona
name: Schulte, Achim
name: Assmann, André
name: Jüpner, Robert
name: Johannes, Petrina T.
name: Mashauri, Damas Alfred
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: flood
subject: FloodArea11
subject: SCS-CN
subject: TanDEM-X
subject: TRMM
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften

description: The transboundary region of the Iishana system in the western Cuvelai Basin, between southern Angola and northern Namibia, is frequently affected by floods at irregular intervals. As a result, the predominantly rural, subsistence farming population has experienced crop failures, human, and economic losses. To date, very little is known about the generation of floods, flood concentration, and stormwater drainage dynamics in this region. In this study, 2D-hydrodynamic modeling was applied to reconstruct one of the latest major flood events during the rainy season from November 2008 to March 2009 in order to study the runoff behavior and interconnectivity of the Iishana system. The model focused on the eastern part of the Iishana system, which was most affected by floods and flood damage due to the high population density in and around Oshakati, the regional capital. Two main streams were identified noteworthy because they merge and subsequently affect Oshakati. Regarding the simulated flood event water depths vary from 0.1 m to 14 m, with an average of 0.2 m, while water depths above 5 m were attributed to borrow pits. The inundation area ranged up to 1860 km2 and the amount of water left after the rainy season on March 25th, 2009, was determined between 0.116 and 0.547 km3, depending on the amount of evapotranspiration considered in the model. Thus, in the Angolan part of the Iishana system, significantly larger quantities of water are available for longer periods of time during the subsequent dry season, whereas the system in Namibia stores less water, resulting in a shorter water retention period.
title: Partnerschaften in der Schadnagerbekämpfung bei rinderhaltenden Betrieben in NRW
Creators: name: Bongard, Helene
name: Beringhoff, Hanna
name: Boelhauve, Marc
name: Hecker, Odile
name: Mergenthaler, Marcus
Publisher: name: Fachhochschule Südwestfalen
Year: 2019
Subjects: subject: 630

description: Forschungsnotizen des Fachbereichs Agrarwirtschaft Soest, vol. 24
Sonnenfleckenzeichnung Nr. 176.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.07.2003, 07:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2003

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Linear decrease of critical temperature with increasing Zn substitution in the iron-based superconductor BaFe1.89-2xZn2xCo0.11As2
Creators: name: Li, Jun
name: Guo, Yanfeng
name: Zhang, Shoubao
name: Yu, Shan
name: Tsujimoto, Yoshihiro
name: Kontani, Hiroshi
name: Yamaura, Kazunari
name: Takayama-Muromachi, Eiji
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The nonmagnetic impurity effect is studied on the Fe-based BaFe1.89Co0.11As2 superconductor (Tc = 25 K) with Zn substitution for Fe up to 8 at. %, which is achieved by means of high-pressure and high-temperature heating. Tc decreases almost linearly with increasing the Zn content and disappears at ~8 atomic %, being different in the shared phenomenology of the early Zn doping studies, where Tc decreases little. The Tc decreasing rate, however, remains much lower (3.63 K/%) than what is expected for the s(+-)-wave model, implying the model is unlikely. Another symmetry model such as the non-sign reversal s-wave model may better account for the result.
description: Accepted for publication as a Rapid Communication in Physical Review B
Sonnenfleckenzeichnung Nr. 94.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 08.04.2003, 07:45, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2003

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 175.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 03.07.2003, 07:15, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2003

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Comparative analysis of adipokinetic hormones and their receptors in Blattodea reveals novel patterns of gene evolution
Creators: name: Jiang, Shixiong
name: Marco, Heather G.
name: Scheich, Nina
name: He, Shulin
name: Wang, Zongqing
name: Gäde, Gerd
name: McMahon, Dino P.
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: adipokinetic hormone
subject: adipokinetic hormone receptor
subject: ‘green’ pesticide
subject: neuropeptide
subject: termite
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Adipokinetic hormone (AKH) is a neuropeptide produced in the insect corpora cardiaca that plays an essential role in mobilising carbohydrates and lipids from the fat body to the haemolymph. AKH acts by binding to a rhodopsin-like G protein-coupled receptor (GPCR), the adipokinetic hormone receptor (AKHR). In this study, we tackle AKH ligand and receptor gene evolution as well as the evolutionary origins of AKH gene paralogues from the order Blattodea (termites and cockroaches). Phylogenetic analyses of AKH precursor sequences point to an ancient AKH gene duplication event in the common ancestor of Blaberoidea, yielding a new group of putative decapeptides. In total, 16 different AKH peptides from 90 species were obtained. Two octapeptides and seven putatively novel decapeptides are predicted for the first time. AKH receptor sequences from 18 species, spanning solitary cockroaches and subsocial wood roaches as well as lower and higher termites, were subsequently acquired using classical molecular methods and in silico approaches employing transcriptomic data. Aligned AKHR open reading frames revealed 7 highly conserved transmembrane regions, a typical arrangement for GPCRs. Phylogenetic analyses based on AKHR sequences support accepted relationships among termite, subsocial (Cryptocercus spp.) and solitary cockroach lineages to a large extent, while putative post-translational modification sites do not greatly differ between solitary and subsocial roaches and social termites. Our study provides important information not only for AKH and AKHR functional research but also for further analyses interested in their development as potential candidates for biorational pest control agents against invasive termites and cockroaches.
Sonnenfleckenzeichnung Nr. 192.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 21.07.2003, 08:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2003

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
title: Vorträge und Forschungen: Sonderbände, Bd. 60 (2019): Běla Marani-Moravová: Peter von Zittau. Abt, Diplomat und Chronist der Luxemburger
title: Běla Marani-Moravová: Peter von Zittau. Abt, Diplomat und Chronist der Luxemburger
titleType: AlternativeTitle
Creators: name: Vorträge Und Forschungen: Sonderbände
Publisher: name: Vorträge und Forschungen: Sonderbände
Year: 2020

description: 1278, 1306 und 1310 – die drei Jahreszahlen stehen für den Tod Přemysl Otakars II. am Marchfeld, die Ermordung Wenzels III. in Olmütz und die Erhebung Johanns von Luxemburg zum König von Böhmen. Diese Ereignisse waren wegweisend für die Geschicke Böhmens zu Beginn des 14. Jahrhunderts und wurden von Peter von Zittau, dem Abt von Königsaal und Verfasser der gleichnamigen Chronik, ausführlich beschrieben. Die vorliegende Publikation stellt das in der Historiographie als Königsaaler Chronik bekannte Werk und dessen Autor in den Mittelpunkt und analysiert das darin festgehaltene Bild der Herrscher, Adligen, Geistlichen und Bürger. Besonders Peters von Zittau moralische – oft in Versform verfasste – Unterweisungen an den Herrscher, seine Quellen, Netzwerke und Beobachtungen zeugen von einem außerordentlich gebildeten Chronisten. (vorerst nur Titelei)
description: Titelei
title: GVO-freie Fütterung in einer Milcherzeugergemeinschaft im Westmünsterland: Gründe für die Umstellung und Probleme aus Sicht von Betriebsleitenden
Creators: name: Solomun, Tesfazgi
name: Forstreuter, Thomas
name: Mergenthaler, Marcus
Publisher: name: Fachhochschule Südwestfalen
Year: 2018
Subjects: subject: 630

description: Forschungsnotizen des Fachbereichs Agrarwirtschaft Soest, vol. 47
Was Nazi Germany an “Accommodating Dictatorship”? A Comparative Perspective on Taxation of the Rich in World War II
Creators: name: Buggeln, Marc
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: accommodating dictatorship
subject: Nazi tax policy
subject: World War II
subject: 900 Geschichte und Geografie::940 Geschichte Europas::943 Geschichte Mitteleuropas; Deutschlands

description: Götz Aly's book Hitler's Beneficiaries considers the Nazi regime an “accommodating dictatorship.” According to Aly, the majority of the population benefited from the Nazis’ war. He sums up Nazi tax policy under the headings “Tax Breaks for the Masses” and “Tax Rigor for the Bourgeoisie.” This perspective represented progress in that, until then, tax policy had not featured in any of the major historical overviews of National Socialism. For a more in-depth assessment of Nazi tax policy, however, it must be compared against the tax policies of Germany's wartime enemies. I compare tax policies in Germany, Britain, and the United States and show that Aly's theories do not hold. They are neither consistent with the declared intentions of those who imposed these policies nor with the results as reflected in the relevant statistics.
Easy Approach to Graphene Growth on Ir(111) and Ru(0001) from Liquid Ethanol
Creators: name: Dedkov, Yuriy
name: Zhou, Junhao
name: Guo, Yefei
name: Voloshina, Elena
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: angular-resolved photoelectron spectroscopy
subject: density functional theory
subject: graphene
subject: low-energy electron diffraction
subject: metals
subject: scanning tunnelling microscopy
subject: X-ray photoelectron spectroscopy
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: The growth of a high-quality complete graphene layer is successfully achieved for Ir(111) and Ru(0001) substrates using liquid ethanol as a precursor. Metallic substrates, which are cleaned in ultra-high vacuum conditions, were ex-situ immersed in liquid ethanol followed by the controlled in situ thermal annealing. The process of graphene formation and its quality are carefully monitored using X-ray photoelectron spectroscopy, low-energy electron diffraction, and scanning tunneling microscopy methods. It is found that graphene formation starts at 400 °C via ethanol decomposition and desorption of oxygen from the surface leading to the formation of the high-quality complete graphene layer at 1000 °C. The results of the systematic angular-resolved photoelectron spectroscopy experiments confirm the high quality of the obtained graphene layer, and it concludes that such an approach offers an easy, quick, and reproducible method to synthesize large-scale graphene on different metallic substrates.
Response of protists to nitrogen addition, arbuscular mycorrhizal fungi manipulation, and mesofauna reduction in a tropical montane rainforest in southern Ecuador
Creators: name: Schulz, Garvin
name: Camenzind, Tessa
name: Sánchez-Galindo, Laura M.
name: Schneider, Dominik
name: Scheu, Stefan
name: Krashevska, Valentyna
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: environmental changes
subject: environmental DNA
subject: high-throughput sequencing
subject: nutrient cycling
subject: protist community
subject: trophic groups
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: The tropical Andes are a species-rich and nitrogen-limited system, susceptible to increased nitrogen (N) inputs from the atmosphere. However, our understanding of the impacts of increased N input on belowground systems, in particular on protists and their role in nutrient cycling, remains limited. We explored how increased N affects protists in tropical montane rainforests in Ecuador using high-throughput sequencing (HTS) of environmental DNA from two litter layers. In addition, we manipulated the amount of arbuscular mycorrhizal fungi (AMF) and mesofauna, both playing a significant role in N cycling and interacting in complex ways with protist communities. We found that N strongly affected protist community composition in both layers, while mesofauna reduction had a stronger effect on the lower layer. Changes in concentration of the AMF marker lipid had little effect on protists. In both layers, the addition of N increased phagotrophs and animal parasites and decreased plant parasites, while mixotrophs decreased in the upper layer but increased in the lower layer. In the upper layer with higher AMF concentration, mixotrophs decreased, while in the lower layer, photoautotrophs increased and plant parasites decreased. With reduced mesofauna, phagotrophs increased and animal parasites decreased in both layers, while plant parasites increased only in the upper layer. The findings indicate that to understand the intricate response of protist communities to environmental changes, it is critical to thoroughly analyze these communities across litter and soil layers, and to include HTS.
title: Ist allein die deutsche Sauenhaltung rückläufig?: Heterogene Entwicklungen in der EU
Creators: name: Mergenthaler, Marcus
Publisher: name: Fachhochschule Südwestfalen
Year: 2018
Subjects: subject: 630

description: Forschungsnotizen des Fachbereichs Agrarwirtschaft Soest, vol. 48
Sonnenfleckenzeichnung Nr. 278.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 22.10.2003, 07:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2003

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Cooperation and confusion in public goods games: confusion cannot explain contribution patterns
Creators: name: Granulo, Armin
name: Kerschreiter, Rudolf
name: Kocher, Martin G.
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Public goods game
subject: Cooperation
subject: Experiment
subject: Confusion
subject: 300 Sozialwissenschaften::330 Wirtschaft::330 Wirtschaft

description: People behave much more cooperatively than predicted by the self-interest hypothesis in social dilemmas such as public goods games. Some studies have suggested that many decision makers cooperate not because of genuine cooperative preferences but because they are confused about the incentive structure of the game—and therefore might not be aware of the dominant strategy. In this research, we experimentally manipulate whether decision makers receive explicit information about which strategies maximize individual income and group income or not. Our data reveal no statistically significant effects of the treatment variation, neither on elicited contribution preferences nor on unconditional contributions and beliefs in a repeated linear public goods game. We conclude that it is unlikely that confusion about optimal strategies explains the widely observed cooperation patterns in social dilemmas such as public goods games.
Properz und Vergil: Was sich liebt, das neckt sich!
Creators: name: Stachon, Markus
Publisher: name: Würzburger Jahrbücher für die Altertumswissenschaft
Year: 2019

description: -
description: Würzburger Jahrbücher für die Altertumswissenschaft, [N.F.] Bd. 38 (2014): Würzburger Jahrbücher für die Altertumswissenschaft
title: Mikrobiologische Untersuchungen verschiedener Reinigungsverfahren von Anfütterungsschalen in der Ferkelaufzucht
Creators: name: Dünninghaus, Britta
name: Freitag, Henrike
name: Linnemann, Sabrina
name: Boelhauve, Marc
Publisher: name: Fachhochschule Südwestfalen
Year: 2018
Subjects: subject: 630

description: Forschungsnotizen des Fachbereichs Agrarwirtschaft Soest, vol. 49
SPADES: a Stellar PArameters DEtermination Software
Creators: name: Posbic, Helene
name: Katz, David
name: Caffau, Elisabetta
name: Bonifacio, Piercarlo
name: Sbordone, Luca
name: Gomez, Ana
name: Arenou, Frederic
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: With the large amounts of spectroscopic data available today and the very large surveys to come (e.g. Gaia), the need for automatic data analysis software is unquestionable. We thus developed an automatic spectra analysis program for the determination of stellar parameters: radial velocity, effective temperature, surface gravity, micro-turbulence, metallicity and the elemental abundances of the elements present in the spectral range. Target stars for this software should include all types of stars. The analysis method relies on a line by line comparison of the spectrum of a target star to a library of synthetic spectra. The idea is built on the experience acquired in developing the TGMET (Katz et al. 1998 and Soubiran et al. 2003) ETOILE (Katz 2001) and Abbo (Bonifacio & Caffau 2003) softwares. The method is presented and the performances are illustrated with GIRAFFE-like simulated spectra with high resolution (R = 25000), with high and low signal to noise ratios (down to SNR= 30). These spectra should be close to what could be targeted by the Gaia-ESO Survey (GCDS).
description: 5 pages, SF2A 2011 Poster Proceedings
Bestock, L. (2017). Violence and Power in Ancient Egypt: Image and Ideology before the New Kingdom
Creators: name: Matić, Uroš
Publisher: name: Archäologische Informationen
Year: 2020

description: Rezension zu: Bestock, L. (2017). Violence and Power in Ancient Egypt: Image and Ideology before the New Kingdom. London: Routledge. 294 p., incl. 127 figs. ISBN 9781138685055
description: Archäologische Informationen, Bd. 42 (2019): Archäologische Informationen
On curves contained in convex subsets of the plane
Creators: name: Coppersmith, Don
name: Nagy, Gyozo
name: Ravsky, Alex
Publisher: name: arXiv
Year: 2012
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 52A10 (Primary), 52A38 (Secondary)

description: If K' and K are convex bodies of the plane such that K' is a subset of K then the perimeter of K' is not greater than the perimeter of K. We obtain the following generalization of this fact. Let K be a convex compact body of the plane with the perimeter p and the diameter d and r>1 be an integer. Let s be the smallest number such that for any curve of length greater than s contained in K there is a straight line intersecting the curve at least in r+1 different points. Then s=rp/2 if r is even and s=(r-1)p/2+d if r is odd.
description: 4 pages, 1 figure
Sonnenfleckenzeichnung Nr. 290.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.11.2003, 11:00, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2003

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Detection of solidification crack formation in laser beam welding videos of sheet metal using neural networks
Creators: name: Huo, Wenjie
name: Bakir, Nasim
name: Gumenyuk, Andrey
name: Rethmeier, Michael
name: Wolter, Katinka
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Deep neural networks
subject: Laser beam welding
subject: Solidification cracks detection
subject: Spatio-temporal features extraction
subject: Welding quality control system
subject: 000 Informatik, Informationswissenschaft, allgemeine Werke::000 Informatik, Wissen, Systeme::004 Datenverarbeitung; Informatik

description: Laser beam welding has become widely applied in many industrial fields in recent years. Solidification cracks remain one of the most common welding faults that can prevent a safe welded joint. In civil engineering, convolutional neural networks (CNNs) have been successfully used to detect cracks in roads and buildings by analysing images of the constructed objects. These cracks are found in static objects, whereas the generation of a welding crack is a dynamic process. Detecting the formation of cracks as early as possible is greatly important to ensure high welding quality. In this study, two end-to-end models based on long short-term memory and three-dimensional convolutional networks (3D-CNN) are proposed for automatic crack formation detection. To achieve maximum accuracy with minimal computational complexity, we progressively modify the model to find the optimal structure. The controlled tensile weldability test is conducted to generate long videos used for training and testing. The performance of the proposed models is compared with the classical neural network ResNet-18, which has been proven to be a good transfer learning model for crack detection. The results show that our models can detect the start time of crack formation earlier, while ResNet-18 only detects cracks during the propagation stage.
Sonnenfleckenzeichnung Nr. 307.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 12.12.2003, 08:30, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2003

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Behavioral responses of free-flying Drosophila melanogaster to shiny, reflecting surfaces
Creators: name: Mathejczyk, Thomas F.
name: Babo, Édouard J.
name: Schönlein, Erik
name: Grinda, Nikolai V.
name: Greiner, Andreas
name: Okrožnik, Nina
name: Belušič, Gregor
name: Wernet, Mathias F.
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Drosophila
subject: Polarization vision
subject: Behavior
subject: Thirst
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Active locomotion plays an important role in the life of many animals, permitting them to explore the environment, find vital resources, and escape predators. Most insect species rely on a combination of visual cues such as celestial bodies, landmarks, or linearly polarized light to navigate or orient themselves in their surroundings. In nature, linearly polarized light can arise either from atmospheric scattering or from reflections off shiny non-metallic surfaces like water. Multiple reports have described different behavioral responses of various insects to such shiny surfaces. Our goal was to test whether free-flying Drosophila melanogaster, a molecular genetic model organism and behavioral generalist, also manifests specific behavioral responses when confronted with such polarized reflections. Fruit flies were placed in a custom-built arena with controlled environmental parameters (temperature, humidity, and light intensity). Flight detections and landings were quantified for three different stimuli: a diffusely reflecting matt plate, a small patch of shiny acetate film, and real water. We compared hydrated and dehydrated fly populations, since the state of hydration may change the motivation of flies to seek or avoid water. Our analysis reveals for the first time that flying fruit flies indeed use vision to avoid flying over shiny surfaces.
Commercial Bribery and Administrative Vetting
Creators: name: Shi, Xiuyin
Publisher: name: Journal of Self-Regulation and Regulation
Year: 2020

description: This article analyzes guanxi-based bribery by using a case of CFDA, China‘s food and drug safety regulator. Guanxi-based bribery is a prominent feature of commercial bribery in oriental societi es. Guanxi is an amalgam of both emoti on and interest. Emotion and interest intermingle with each other and jointly take effect. Interest serves as the vehicle of emotion; emotion serves to rubricate exchanges of interest. To counter guanxi-based bribery, on the one hand, there must be a clear demarcation between public affairs and private connections; on the other hand, increased rationalization of the institutions is urgently needed.
description: Journal of Self-Regulation and Regulation, Vol 5 (2019): Special Issue Organisierte Regelverletzungen – Jenseits der Moral
The Promise of Participation: European Reconstruction Work in Early Weimar Germany’s Political Culture
Creators: name: Karla, Anna
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: European Reconstruction Work
subject: Weimar Republic
subject: Participation
subject: 900 Geschichte und Geografie::940 Geschichte Europas::943 Geschichte Mitteleuropas; Deutschlands

description: Material reconstruction after the First World War was closely linked to German reparations, yet it is curiously underrepresented in the historiography of the Treaty of Versailles as well as in studies on interwar Germany. In the Weimar Republic, political leaders, economic actors and large parts of the population supported the idea of sending building material and even labourers to neighbouring countries. This far-reaching planning process began before and continued after the signing of the peace treaty, as the Allies remained hesitant but not fully hostile to the German proposals. Material reparation potentially mobilized a wide range of goods and labour, and it was thus particularly prone to expectation, but also to disappointment in a broad segment of the population. Against the backdrop of war destruction and the international peace negotiations in 1919, this article investigates the way in which European reconstruction was discussed formally and informally in Weimar Germany. By focusing on the communicative channels and media that promoted German participation in building work abroad, it discusses how expectations were raised, managed and disappointed at the intersection of foreign and domestic policies. While there had only been minor destruction in German territory between 1914 and 1918, the republic’s political culture proved to be deeply affected by the material reconstruction on the European continent, even though most of the far-reaching plans did not result in building sites on the ground.
Gabe des Geschichtsvereins für Göttingen und Umgebung
Creators: name: Potratz, Hanns A.
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Gabe des Geschichtsvereins für Göttingen und Umgebung. Zur Fünfzig-Jahrfeier des Städtischen Museums Göttingen. Veröffentlichungen des Geschichtsveriens für Göttingen und Umgebung Nr. 3 Göttingen 1940
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 14 (1940): Nachrichten aus Niedersachsens Urgeschichte
Examining charge transport networks in organic bulk heterojunction photovoltaic diodes using 1/f noise spectroscopy (data files)
Creators: name: Kaku, K.
name: Williams, A.T.
name: Mendis, B.
name: Groves, C.
Publisher: name: Durham University
Year: 2016
Subjects: organic photovoltaic diodes
1/f noise
organic electronics
charge transport
percolation networks

description: This study investigates the application of 1/f noise spectroscopy to determine the morphology of organic photovoltaic diodes. Our experiments indicate that 1/f noise spectroscopy can provide detailed information about charge transport networks in such complex, bulk heterojunction devices, even when bipolar charge transport is present. This indicates that 1/f noise spectroscopy could be used to investigate morphology in a wide range blended organic electronic devices. Methodologies and descriptions of the data are described in full in the paper which is available open-access from the publisher DOI: 10.1039/C5TC00348B URL: http://pubs.rsc.org/en/content/articlelanding/2015/tc/c5tc00348b#divAbstract
title: Mikrobiologische Untersuchung zur Effektivität verschiedener Reinigungsverfahren in Anfütterungsschalen
Creators: name: Dünninghaus, Britta
name: Freitag, Henrike
name: Linnemann, Sabrina
name: Boelhauve, Marc
Publisher: name: Fachhochschule Südwestfalen
Year: 2018
Subjects: subject: 630

description: Forschungsnotizen des Fachbereichs Agrarwirtschaft Soest, vol. 50
Transparency Material for Why and How Does a Machine Learning Algorithm Co-Exist with Alternative Methods for Identifying Social Welfare Blind Spots?
Creators: name: Lee, Gwanhoo
name: Lee, Woo Sik
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Business
subject: Management Information Systems
subject: artificial intelligence
subject: complementarity
subject: government
subject: machine learning
subject: multi-methods
subject: social inclusion
subject: social welfare

description: The Social Security Information Service, a central government agency of South Korea, has implemented an information system using ML algorithms to identify social welfare blind spots. Social welfare blind spots refer to cases where individuals are eligible for social welfare benefits but are not current recipients for various reasons. Even though the ML-based model was performing well, the Korean government developed two additional methods, including a rule-based model and a human-driven heuristic method championed by local governments. Using a multi-method approach, this case study investigates why the ML-based method co-exists with the other two methods and how they complement one another. We found that policy makers’ lack of understanding of ML, local government employees’ perception, and accountability concerns contributed to their co-existence. The three methods had different strengths and weaknesses. The government agencies orchestrated these methods to increase complementarities by leveraging and strengthening different problem-solving approaches.
Infrared Eclipses of the Strongly Irradiated Planet WASP-33b, and Oscillations of its Host Star
Creators: name: Deming, Drake
name: Fraine, Jonathan D.
name: Sada, Pedro V.
name: Madhusudhan, Nikku
name: Knutson, Heather A.
name: Harrington, Joseph
name: Blecic, Jasmina
name: Nymeyer, Sarah
name: Smith, Alexis M. S.
name: Jackson, Brian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We observe two secondary eclipses of the strongly irradiated transiting planet WASP-33b in the Ks band, and one secondary eclipse each at 3.6- and 4.5 microns using Warm Spitzer. This planet orbits an A5V delta-Scuti star that is known to exhibit low amplitude non-radial p-mode oscillations at about 0.1-percent semi-amplitude. We detect stellar oscillations in all of our infrared eclipse data, and also in one night of observations at J-band out of eclipse. The oscillation amplitude, in all infrared bands except Ks, is about the same as in the optical. However, the stellar oscillations in Ks band have about twice the amplitude as seen in the optical, possibly because the Brackett-gamma line falls in this bandpass. We use our best-fit values for the eclipse depth, as well as the 0.9 micron eclipse observed by Smith et al., to explore possible states of the exoplanetary atmosphere, based on the method of Madhusudhan and Seager. On this basis we find two possible states for the atmospheric structure of WASP-33b. One possibility is a non-inverted temperature structure in spite of the strong irradiance, but this model requires an enhanced carbon abundance (C/O>1). The alternative model has solar composition, but an inverted temperature structure. Spectroscopy of the planet at secondary eclipse, using a spectral resolution that can resolve the water vapor band structure, should be able to break the degeneracy between these very different possible states of the exoplanetary atmosphere. However, both of those model atmospheres absorb nearly all of the stellar irradiance with minimal longitudinal re-distribution of energy, strengthening the hypothesis of Cowan et al. that the most strongly irradiated planets circulate energy poorly. Our measurement of the central phase of the eclipse yields e*cos(omega)=0.0003 +/-0.00013, which we regard as being consistent with a circular orbit.
description: 23 pages, 9 figures, 3 tables, accepted for the Astrophysical Journal
Structure and Electronic Properties of SrTiO3–TiO2 Eutectic for Water Splitting Applications
Creators: name: Guo, Yefei
name: Zeeshan, Hafiz Muhammad
name: Yan, Mouhui
name: Qin, Weimin
name: Yang, Wanting
name: Cao, Shixun
name: Dedkov, Yuriy
name: Voloshina, Elena
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: electronic properties
subject: eutectic
subject: interface structures
subject: SrTiO3–TiO2
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Semiconductors with bandgaps and edges corresponding to the solar energy spectrum are found to be suitable for the water splitting applications using photoelectrochemical reactions. However, many present-day materials used in these applications do not have high stability and/or high effectiveness over the complete sunlight spectral range. The recently proposed eutectic compounds, which combine two or more semiconducting materials, can overcome many present difficulties and extend the light absorbance spectrum improving the effectiveness of the water splitting cells. Herein, structural and electronic properties studies of the SrTiO3–TiO2 eutectic material, which is a representative example of this family, are presented. It is found that structural properties of this material, particularly the phase separation and formation of the sharp interface between two phases, can be significantly improved up on the thermal annealing, which is very important for their application in the water splitting reactors. The findings present the deep understanding of the interface structure and electronic properties of the SrTiO3–TiO2 eutectic, which can help to improve the functionality of these class of materials in different applications.