Open Access

Letzte Einträge:
2018-12-14
08:43
OpenAccess [FZJ-2018-07372] Journal Article
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Characterization of Sigma Factor Genes in Streptomyces lividans TK24 Using a Genomic Library-Based Approach for Multiple Gene Deletions
Alternative sigma factors control numerous aspects of bacterial life, including adaptation to physiological stresses, morphological development, persistence states and virulence. This is especially true for the physiologically complex actinobacteria. [...]
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2018-12-13
16:50
OpenAccess [FZJ-2018-07368] Journal Article
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Routes for increasing endurance and retention in HfO 2 -based resistive switching memories
We investigate metastable and thermodynamically stable phases that can be expected to occur in electroformed filaments in resistively switching hafnia, and discuss their relevance for the switching process. To this end, we conduct a study, based on density functional theory combined with an evolutionary algorithm determining the composition-dependent (meta)stable phases in HfOx, focusing on the region 0<x<2. [...]
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2018-12-13
14:32
OpenAccess [FZJ-2018-07360] Journal Article
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Der Open Access Monitor Deutschland
O-bib 2018/4, 84-100 ()
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2018-12-13
13:34
OpenAccess [FZJ-2018-07359] Journal Article
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Chaetolines A and B, Pyrano[3,2- f ]isoquinoline Alkaloids from Cultivation of Chaetomium sp. in the Presence of Autoclaved Pseudomonas aeruginosa
The first members of a new alkaloid class, chaetolines A (1) and B (2), which feature a pyrano[3,2-f]isoquinoline core structure, were obtained from a crude extract of the fungal endophyte Chaetomium sp. after cultivation in the presence of autoclaved Pseudomonas aeruginosa. [...]
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2018-12-13
13:27
OpenAccess [FZJ-2018-07358] Journal Article
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Substituted l -tryptophan- l -phenyllactic acid conjugates produced by an endophytic fungus Aspergillus aculeatus using an OSMAC approach
RSC Advances 8(14), 7863 - 7872 () [10.1039/C8RA00200B]
The endophytic fungus Aspergillus aculeatus isolated from leaves of the papaya plant Carica papaya was fermented on solid rice medium, yielding a new L-tryptophan-L-phenyllactic acid conjugate (1) and thirteen known compounds (11, 14–25). In addition, an OSMAC approach was employed by adding eight different sodium or ammonium salts to the rice medium. [...]
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2018-12-13
09:23
OpenAccess [FZJ-2018-07337] Journal Article
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The emergence of macroscopic interactions between intersecting pedestrian streams511
The interactions between individual pedestrians can lead to emergent effects, such as the formation of lanes in bidirectional flows. Here, we expose properties of an emergent effect at a macroscopic level, namely interactions between pedestrian streams that arise when pedestrians walk into and through four-way intersections from different directions. [...]
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2018-12-12
13:28
OpenAccess [FZJ-2018-07321] Journal Article
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The effect of secondary ice production parameterization on the simulation of a cold frontal rainband
Secondary ice production via processes like rime splintering, frozen droplet shattering, and breakup upon ice hydrometeor collision have been proposed to explain discrepancies between in-cloud ice crystal and ice-nucleating particle numbers. To understand the impact of this additional ice crystal generation on surface precipitation, we present one of the first studies to implement frozen droplet shattering and ice–ice collisional breakup parameterizations in a mesoscale model. [...]
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2018-12-12
08:03
OpenAccess [FZJ-2018-07296] Contribution to a book
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SIMULATING THE REGIONAL AGRICULTURAL IRRIGATION DEMAND IN A NORTH-WESTERN GERMAN LANDSCAPEМоделирование регионального спроса на сельскохозяйственное орошение в северо-западной части ландшафта Германии
Novel methods and results of landscape research in Europe, Central Asia and Siberia Moskau : Publishing House FSBSI "Pryansihnikov Institute of Agrochemistry" 5, 120-123 () [10.25680/3438.2018.69.18.371]
Intensive agricultural production in the northwestern German region North Rhine-Westphalia demands water for irrigation. Future climate change is expected to impact the agricultural production conditions and to increase the regional irrigation demand. [...]
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2018-12-11
17:45
OpenAccess [FZJ-2018-07294] Book/Dissertation / PhD Thesis

Land-atmosphere interactions in multiscale regional climate change simulations over Europe
Bonn : Meteorologisches Institut der Universität Bonn, Bonner Meteorologische Abhandlungen 86, viii, 147 p. () = Dissertation, Rheinische Friedrich-Wilhelms-Universität Bonn, 2018
Interactions between the heterogenous land surface and the atmosphere play a fundamental role in the weather and climate system through their influence on the energy and water cycles. Global climate models (GCMs) currently have coarse horizontal grid resolutions in the order of 100 km. [...]
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2018-12-11
14:31
OpenAccess [FZJ-2018-07288] Journal Article
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Transcriptome-wide analysis uncovers the targets of the RNA-binding protein MSI2 and effects of MSI2's RNA-binding activity on IL-6 signaling
The RNA-binding protein Musashi 2 (MSI2) has emerged as an important regulator in cancer initiation, progression, and drug resistance. Translocations and deregulation of the MSI2 gene are diagnostic of certain cancers, including chronic myeloid leukemia (CML) with translocation t(7;17), acute myeloid leukemia (AML) with translocation t(10;17), and some cases of B-precursor acute lymphoblastic leukemia (pB-ALL). [...]
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