TY - JOUR A1 - Cisek, Richard A1 - Tokarz, Danielle A1 - Kontenis, Lukas A1 - Barzda, Virginijus A1 - Steup, Martin T1 - Polarimetric second harmonic generation microscopy BT - an analytical tool for starch bioengineering JF - Starch-Starke N2 - Second harmonic generation (SHG) is a nonlinear optical process that inherently generates signal in non-centrosymmetric materials, such as starch granules, and therefore can be used for label-free imaging. Both intensity and polarization of SHG are determined by material properties that are characterized by the nonlinear susceptibility tensor, ((2)). Examination of the tensor is performed for each focal volume of the image by measuring the outgoing polarization state of the SHG signal for a set of incoming laser beam polarizations. Mapping of nonlinear properties expressed as the susceptibility ratio reveals structural features including the organization of crystalline material within a single starch granule, and the distribution of structural properties in a population of granules. Isolated granules, as well as in situ starch, can be analyzed using polarimetric SHG microscopy. Due to the fast sample preparation and short imaging times, polarimetric SHG microscopy allows for a quick assessment of starch structure and permits rapid feedback for bioengineering applications. This article presents the basics of SHG theory and microscopy applications for starch-containing materials. Quantification of ultrastructural features within individual starch granules is described. New results obtained by polarization resolved SHG microscopy of starch granules are presented for various maize genotypes revealing heterogeneity within a single starch particle and between various granules. KW - Determination of crystallinity KW - Determination of hydration KW - Label-free imaging KW - Nonlinear optical microscopy KW - Structural determination Y1 - 2017 U6 - https://doi.org/10.1002/star.201700031 SN - 0038-9056 SN - 1521-379X VL - 70 IS - 1-2 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Gao, Yongbo A1 - Merz, Christoph A1 - Lischeid, Gunnar A1 - Schneider, Michael T1 - A review on missing hydrological data processing JF - Environmental earth sciences N2 - Like almost all fields of science, hydrology has benefited to a large extent from the tremendous improvements in scientific instruments that are able to collect long-time data series and an increase in available computational power and storage capabilities over the last decades. Many model applications and statistical analyses (e.g., extreme value analysis) are based on these time series. Consequently, the quality and the completeness of these time series are essential. Preprocessing of raw data sets by filling data gaps is thus a necessary procedure. Several interpolation techniques with different complexity are available ranging from rather simple to extremely challenging approaches. In this paper, various imputation methods available to the hydrological researchers are reviewed with regard to their suitability for filling gaps in the context of solving hydrological questions. The methodological approaches include arithmetic mean imputation, principal component analysis, regression-based methods and multiple imputation methods. In particular, autoregressive conditional heteroscedasticity (ARCH) models which originate from finance and econometrics will be discussed regarding their applicability to data series characterized by non-constant volatility and heteroscedasticity in hydrological contexts. The review shows that methodological advances driven by other fields of research bear relevance for a more intensive use of these methods in hydrology. Up to now, the hydrological community has paid little attention to the imputation ability of time series models in general and ARCH models in particular. KW - Missing data KW - Imputation KW - Hydrological time series analysis KW - ARCH KW - ARIMA KW - Heteroscedasticity Y1 - 2018 U6 - https://doi.org/10.1007/s12665-018-7228-6 SN - 1866-6280 SN - 1866-6299 VL - 77 IS - 2 PB - Springer CY - New York ER - TY - JOUR A1 - Stockhorst, Stefanie T1 - so wollen wir singen und loben deine Macht BT - Literatur- und sprachwissenschaftliche Untersuchungen zur religiösen Lyrik in der Frühen Neuzeit JF - Daphnis : Zeitschrift für mittlere deutsche Literatur Y1 - 2018 U6 - https://doi.org/10.1163/18796583-04601007 SN - 0300-693X SN - 1879-6583 VL - 46 IS - 1-2 SP - 335 EP - 338 PB - Brill Rodopi CY - Amsterdam ER - TY - JOUR A1 - Hassler, Gerda T1 - Rezension zu: Bertrand, Aliènor: Condillac, philosopher of language? - Lyon: ENS Éditions, 2016. - ISBN 978-2-84788-811-9 JF - Historiographia Linguistica Y1 - 2018 U6 - https://doi.org/10.1075/hl.00022.has SN - 0302-5160 SN - 1569-9781 VL - 45 IS - 1-2 SP - 225 EP - 234 PB - John Benjamins Publishing Co. CY - Amsterdam ER - TY - JOUR A1 - Homolka, Walter T1 - Jewish theology and Jewish studies in Germany BT - Reflections in relation to the development of the research field in Norway JF - Nordisk judaistik/Scandinavian Jewish Studies N2 - This article presents some insights into the German developments of studying Judaism and the Jewish tradition and relates them to the ongoing development of the subject at universities in the Nordic countries in general and Norway in particular. It also aims to present some conclusions concerning why it might be interesting for Norwegian society to intensify the study of Judaism at its universities. KW - Jewish studies KW - Jews in Norway KW - Jewish Studies in Germany Y1 - 2018 U6 - https://doi.org/10.30752/nj.70966 SN - 0348-1646 SN - 2343-4929 VL - 29 IS - 2 SP - 26 EP - 35 PB - Donner Institute CY - Åbo ER - TY - JOUR A1 - Ebke, Thomas T1 - Rezension zu: Kelm, Holden: Hegel und Foucault. Die Geschichtlichkeit des Wissens als Entwicklung und Transformation. - Berlin: de Gruyter, 2015. - VIII, 455 S. - ISBN: 978-3-11-040092-2 JF - Hegel-Studien Y1 - 2018 SN - 978-3-7873-3470-4 U6 - https://doi.org/10.28937/978-3-7873-3470-4 SN - 0073-1587 VL - 51 SP - 242 EP - 247 PB - Felix Meiner Verlag CY - Hamburg ER - TY - JOUR A1 - Yarman, Aysu A1 - Kurbanoglu, Sevinc A1 - Jetzschmann, Katharina J. A1 - Ozkan, Sibel A. A1 - Wollenberger, Ulla A1 - Scheller, Frieder W. T1 - Electrochemical MIP-Sensors for Drugs JF - Current Medicinal Chemistry N2 - In order to replace bio-macromolecules by stable synthetic materials in separation techniques and bioanalysis biomimetic receptors and catalysts have been developed: Functional monomers are polymerized together with the target analyte and after template removal cavities are formed in the "molecularly imprinted polymer" (MIP) which resemble the active sites of antibodies and enzymes. Starting almost 80 years ago, around 1,100 papers on MIPs were published in 2016. Electropolymerization allows to deposit MIPs directly on voltammetric electrodes or chips for quartz crystal microbalance (QCM) and surface plasmon resonance (SPR). For the readout of MIPs for drugs amperometry, differential pulse voltammetry (DPV) and impedance spectroscopy (EIS) offer higher sensitivity as compared with QCM or SPR. Application of simple electrochemical devices allows both the reproducible preparation of MIP sensors, but also the sensitive signal generation. Electrochemical MIP-sensors for the whole arsenal of drugs, e.g. the most frequently used analgesics, antibiotics and anticancer drugs have been presented in literature and tested under laboratory conditions. These biomimetic sensors typically have measuring ranges covering the lower nano-up to millimolar concentration range and they are stable under extreme pH and in organic solvents like nonaqueous extracts. KW - Biomimetic sensors KW - molecularly imprinted polymers KW - drug sensors KW - drug imprinting KW - electropolymerization KW - electrochemical sensors Y1 - 2018 U6 - https://doi.org/10.2174/0929867324666171005103712 SN - 0929-8673 SN - 1875-533X VL - 25 IS - 33 SP - 4007 EP - 4019 PB - Bentham Science Publishers LTD CY - Sharjah ER - TY - JOUR A1 - Puppe, Daniel A1 - Sommer, Michael T1 - Experiments, uptake mechanisms, and functioning of silicon foliar fertilization BT - a review focusing on Maize, Rice, and Wheat JF - Advances in Agronomy ; 152 N2 - Silicon (Si) is considered as a quasiessential element for higher plants as its uptake increases plant growth and resistance against abiotic as well as biotic stresses. Foliar application of fertilizers generally is assumed to be a comparably environment-friendly form of fertilization because only small quantities are needed. The interest in foliar fertilization and the use of Si as a fertilizer in general increased significantly within the last decades, but there are only few publications dealing with the foliar application of Si at all. In the present review, the effects of Si foliar fertilization, including nano-Si fertilizers, on the three most important crops on a global scale, that is, maize, rice, and wheat, are summarized. Additionally, different pathways (i.e., cuticular pathways, stomata, and trichomes) of foliar uptake and functioning of Si foliar fertilizers against biotic (i.e., fungal diseases and harmful insects), as well as abiotic (i.e., water stress, macronutrient imbalance, and heavy metal toxicity) stressors are discussed. Future research should especially focus on (1) the gathering of empirical data from field and greenhouse experiments, (2) the intensification of co-operations between practitioners and scientists, (3) interdisciplinary research, and (4) the analysis of results from multiple studies (meta-analysis, big data) to fully understand effects, uptake, and functioning of Si foliar fertilizers and to evaluate their potential in modern sustainable agriculture concepts. Y1 - 2018 SN - 978-0-12-815171-6 U6 - https://doi.org/10.1016/bs.agron.2018.07.003 SN - 0065-2113 VL - 152 SP - 1 EP - 49 PB - Elsevier CY - San Diego ER - TY - JOUR A1 - Degen, Andreas T1 - Rezension zu: Führmann, Franz ; Förster, Wieland: Nun lesen Sie mal schön! Briefwechsel 1968-1984, Eine Auswahl. - Rostock: Hinstorff, 2016. - 320 S. - ISBN 978-3-35602-022-9 JF - Zeitschrift für Germanistik Y1 - 2018 SN - 0323-7982 VL - 28 IS - 1 SP - 197 EP - 199 PB - Lang CY - Bern ER - TY - JOUR A1 - Turner, Bryan S. T1 - Islam, gender, and democracy in comparative perspective JF - Journal of Religious and Political Practice Y1 - 2018 U6 - https://doi.org/10.1080/20566093.2018.1439439 SN - 2056-6093 SN - 2056-6107 VL - 4 IS - 2 SP - 195 EP - 201 PB - Routledge, Taylor & Francis Group CY - Abingdon ER -