TY  - JOUR
A1  - Warrington, Nicole
A1  - Beaumont, Robin
A1  - Horikoshi, Momoko
A1  - Day, Felix R.
A1  - Helgeland, Øyvind
A1  - Laurin, Charles
A1  - Bacelis, Jonas
A1  - Peng, Shouneng
A1  - Hao, Ke
A1  - Feenstra, Bjarke
A1  - Wood, Andrew R.
A1  - Mahajan, Anubha
A1  - Tyrrell, Jessica
A1  - Robertson, Neil R.
A1  - Rayner, N. William
A1  - Qiao, Zhen
A1  - Moen, Gunn-Helen
A1  - Vaudel, Marc
A1  - Marsit, Carmen
A1  - Chen, Jia
A1  - Nodzenski, Michael
A1  - Schnurr, Theresia M.
A1  - Zafarmand, Mohammad Hadi
A1  - Bradfield, Jonathan P.
A1  - Grarup, Niels
A1  - Kooijman, Marjolein N.
A1  - Li-Gao, Ruifang
A1  - Geller, Frank
A1  - Ahluwalia, Tarunveer Singh
A1  - Paternoster, Lavinia
A1  - Rueedi, Rico
A1  - Huikari, Ville
A1  - Hottenga, Jouke-Jan
A1  - Lyytikäinen, Leo-Pekka
A1  - Cavadino, Alana
A1  - Metrustry, Sarah
A1  - Cousminer, Diana L.
A1  - Wu, Ying
A1  - Thiering, Elisabeth Paula
A1  - Wang, Carol A.
A1  - Have, Christian Theil
A1  - Vilor-Tejedor, Natalia
A1  - Joshi, Peter K.
A1  - Painter, Jodie N.
A1  - Ntalla, Ioanna
A1  - Myhre, Ronny
A1  - Pitkänen, Niina
A1  - van Leeuwen, Elisabeth M.
A1  - Joro, Raimo
A1  - Lagou, Vasiliki
A1  - Richmond, Rebecca C.
A1  - Espinosa, Ana
A1  - Barton, Sheila J.
A1  - Inskip, Hazel M.
A1  - Holloway, John W.
A1  - Santa-Marina, Loreto
A1  - Estivill, Xavier
A1  - Ang, Wei
A1  - Marsh, Julie A.
A1  - Reichetzeder, Christoph
A1  - Marullo, Letizia
A1  - Hocher, Berthold
A1  - Lunetta, Kathryn L.
A1  - Murabito, Joanne M.
A1  - Relton, Caroline L.
A1  - Kogevinas, Manolis
A1  - Chatzi, Leda
A1  - Allard, Catherine
A1  - Bouchard, Luigi
A1  - Hivert, Marie-France
A1  - Zhang, Ge
A1  - Muglia, Louis J.
A1  - Heikkinen, Jani
A1  - Morgen, Camilla S.
A1  - van Kampen, Antoine H. C.
A1  - van Schaik, Barbera D. C.
A1  - Mentch, Frank D.
A1  - Langenberg, Claudia
A1  - Scott, Robert A.
A1  - Zhao, Jing Hua
A1  - Hemani, Gibran
A1  - Ring, Susan M.
A1  - Bennett, Amanda J.
A1  - Gaulton, Kyle J.
A1  - Fernandez-Tajes, Juan
A1  - van Zuydam, Natalie R.
A1  - Medina-Gomez, Carolina
A1  - de Haan, Hugoline G.
A1  - Rosendaal, Frits R.
A1  - Kutalik, Zoltán
A1  - Marques-Vidal, Pedro
A1  - Das, Shikta
A1  - Willemsen, Gonneke
A1  - Mbarek, Hamdi
A1  - Müller-Nurasyid, Martina
A1  - Standl, Marie
A1  - Appel, Emil V. R.
A1  - Fonvig, Cilius Esmann
A1  - Trier, Caecilie
A1  - van Beijsterveldt, Catharina E. M.
A1  - Murcia, Mario
A1  - Bustamante, Mariona
A1  - Bonàs-Guarch, Sílvia
A1  - Hougaard, David M.
A1  - Mercader, Josep M.
A1  - Linneberg, Allan
A1  - Schraut, Katharina E.
A1  - Lind, Penelope A.
A1  - Medland, Sarah Elizabeth
A1  - Shields, Beverley M.
A1  - Knight, Bridget A.
A1  - Chai, Jin-Fang
A1  - Panoutsopoulou, Kalliope
A1  - Bartels, Meike
A1  - Sánchez, Friman
A1  - Stokholm, Jakob
A1  - Torrents, David
A1  - Vinding, Rebecca K.
A1  - Willems, Sara M.
A1  - Atalay, Mustafa
A1  - Chawes, Bo L.
A1  - Kovacs, Peter
A1  - Prokopenko, Inga
A1  - Tuke, Marcus A.
A1  - Yaghootkar, Hanieh
A1  - Ruth, Katherine S.
A1  - Jones, Samuel E.
A1  - Loh, Po-Ru
A1  - Murray, Anna
A1  - Weedon, Michael N.
A1  - Tönjes, Anke
A1  - Stumvoll, Michael
A1  - Michaelsen, Kim Fleischer
A1  - Eloranta, Aino-Maija
A1  - Lakka, Timo A.
A1  - van Duijn, Cornelia M.
A1  - Kiess, Wieland
A1  - Koerner, Antje
A1  - Niinikoski, Harri
A1  - Pahkala, Katja
A1  - Raitakari, Olli T.
A1  - Jacobsson, Bo
A1  - Zeggini, Eleftheria
A1  - Dedoussis, George V.
A1  - Teo, Yik-Ying
A1  - Saw, Seang-Mei
A1  - Montgomery, Grant W.
A1  - Campbell, Harry
A1  - Wilson, James F.
A1  - Vrijkotte, Tanja G. M.
A1  - Vrijheid, Martine
A1  - de Geus, Eco J. C. N.
A1  - Hayes, M. Geoffrey
A1  - Kadarmideen, Haja N.
A1  - Holm, Jens-Christian
A1  - Beilin, Lawrence J.
A1  - Pennell, Craig E.
A1  - Heinrich, Joachim
A1  - Adair, Linda S.
A1  - Borja, Judith B.
A1  - Mohlke, Karen L.
A1  - Eriksson, Johan G.
A1  - Widen, Elisabeth E.
A1  - Hattersley, Andrew T.
A1  - Spector, Tim D.
A1  - Kaehoenen, Mika
A1  - Viikari, Jorma S.
A1  - Lehtimaeki, Terho
A1  - Boomsma, Dorret I.
A1  - Sebert, Sylvain
A1  - Vollenweider, Peter
A1  - Sorensen, Thorkild I. A.
A1  - Bisgaard, Hans
A1  - Bonnelykke, Klaus
A1  - Murray, Jeffrey C.
A1  - Melbye, Mads
A1  - Nohr, Ellen A.
A1  - Mook-Kanamori, Dennis O.
A1  - Rivadeneira, Fernando
A1  - Hofman, Albert
A1  - Felix, Janine F.
A1  - Jaddoe, Vincent W. V.
A1  - Hansen, Torben
A1  - Pisinger, Charlotta
A1  - Vaag, Allan A.
A1  - Pedersen, Oluf
A1  - Uitterlinden, Andre G.
A1  - Jarvelin, Marjo-Riitta
A1  - Power, Christine
A1  - Hypponen, Elina
A1  - Scholtens, Denise M.
A1  - Lowe, William L.
A1  - Smith, George Davey
A1  - Timpson, Nicholas J.
A1  - Morris, Andrew P.
A1  - Wareham, Nicholas J.
A1  - Hakonarson, Hakon
A1  - Grant, Struan F. A.
A1  - Frayling, Timothy M.
A1  - Lawlor, Debbie A.
A1  - Njolstad, Pal R.
A1  - Johansson, Stefan
A1  - Ong, Ken K.
A1  - McCarthy, Mark I.
A1  - Perry, John R. B.
A1  - Evans, David M.
A1  - Freathy, Rachel M.
T1  - Maternal and fetal genetic effects on birth weight and their relevance to cardio-metabolic risk factors
JF  - Nature genetics
N2  - Birth weight variation is influenced by fetal and maternal genetic and non-genetic factors, and has been reproducibly associated with future cardio-metabolic health outcomes. In expanded genome-wide association analyses of own birth weight (n = 321,223) and offspring birth weight (n = 230,069 mothers), we identified 190 independent association signals (129 of which are novel). We used structural equation modeling to decompose the contributions of direct fetal and indirect maternal genetic effects, then applied Mendelian randomization to illuminate causal pathways. For example, both indirect maternal and direct fetal genetic effects drive the observational relationship between lower birth weight and higher later blood pressure: maternal blood pressure-raising alleles reduce offspring birth weight, but only direct fetal effects of these alleles, once inherited, increase later offspring blood pressure. Using maternal birth weight-lowering genotypes to proxy for an adverse intrauterine environment provided no evidence that it causally raises offspring blood pressure, indicating that the inverse birth weight-blood pressure association is attributable to genetic effects, and not to intrauterine programming.
Y1  - 2019
SN  - 1061-4036
SN  - 1546-1718
VL  - 51
IS  - 5
SP  - 804
EP  - +
PB  - Nature Publ. Group
CY  - New York
ER  - 
TY  - JOUR
A1  - Szymanski, Kolja V.
A1  - Tönnies, Mario
A1  - Becher, Anne
A1  - Fatykhova, Diana
A1  - N'Guessan, Philippe D.
A1  - Gutbier, Birgitt
A1  - Klauschen, Frederick
A1  - Neuschäfer-Rube, Frank
A1  - Schneider, Paul
A1  - Rückert, Jens
A1  - Neudecker, Jens
A1  - Bauer, Torsten T.
A1  - Dalhoff, Klaus
A1  - Droemann, Daniel
A1  - Gruber, Achim D.
A1  - Kershaw, Olivia
A1  - Temmesfeld-Wollbrueck, Bettina
A1  - Suttorp, Norbert
A1  - Hippenstiel, Stefan
A1  - Hocke, Andreas C.
T1  - Streptococcus pneumoniae-induced regulation of cyclooxygenase-2 in human lung tissue
JF  - The European respiratory journal : official journal of the European Society for Clinical Respiratory Physiology
N2  - The majority of cases of community-acquired pneumonia are caused by Streptococcus pneumoniae and most studies on pneumococcal host interaction are based on cell culture or animal experiments. Thus, little is known about infections in human lung tissue.
 Cyclooxygenase-2 and its metabolites play an important regulatory role in lung inflammation. Therefore, we established a pneumococcal infection model on human lung tissue demonstrating mitogen-activated protein kinase (MAPK)-dependent induction of cyclooxygenase-2 and its related metabolites.
 In addition to alveolar macrophages and the vascular endothelium, cyclooxygenase-2 was upregulated in alveolar type II but not type I epithelial cells, which was confirmed in lungs of patients suffering from acute pneumonia. Moreover, we demonstrated the expression profile of all four E prostanoid receptors at the mRNA level and showed functionality of the E prostanoid(4) receptor by cyclic adenosine monophosphate production. Additionally, in comparison to previous studies, cyclooxygenase-2/prostaglandin E-2 related pro- and anti-inflammatory mediator regulation was partly confirmed in human lung tissue after pneumococcal infection.
 Overall, cell type-specific and MAPK-dependent cyclooxygenase-2 expression and prostaglandin E-2 formation in human lung tissue may play an important role in the early phase of pneumococcal infections.
KW  - Alveolar epithelial cells
KW  - cytokines
KW  - inflammation
KW  - lung infection
KW  - pneumonia
KW  - prostaglandins
Y1  - 2012
U6  - https://doi.org/10.1183/09031936.00186911
SN  - 0903-1936
VL  - 40
IS  - 6
SP  - 1458
EP  - 1467
PB  - European Respiratory Society
CY  - Sheffield
ER  - 
TY  - JOUR
A1  - Semenyshyn, Rostyslav
A1  - Hentschel, Mario
A1  - Stanglmair, Christoph
A1  - Teutsch, Tanja
A1  - Tarin, Cristina
A1  - Pacholski, Claudia
A1  - Giessen, Harald
A1  - Neubrech, Frank
T1  - In vitro monitoring conformational changes of polypeptide monolayers using infrared plasmonic nanoantennas
JF  - Nano letters : a journal dedicated to nanoscience and nanotechnology
N2  - Proteins and peptides play a predominant role in biochemical reactions of living cells. In these complex environments, not only the constitution of the molecules but also their three-dimensional configuration defines their functionality. This so-called secondary structure of proteins is crucial for understanding their function in living matter. Misfolding, for example, is suspected as the cause of neurodegenerative diseases such as Alzheimer’s and Parkinson’s disease. Ultimately, it is necessary to study a single protein and its folding dynamics. Here, we report a first step in this direction, namely ultrasensitive detection and discrimination of in vitro polypeptide folding and unfolding processes using resonant plasmonic nanoantennas for surface-enhanced vibrational spectroscopy. We utilize poly-l-lysine as a model system which has been functionalized on the gold surface. By in vitro infrared spectroscopy of a single molecular monolayer at the amide I vibrations we directly monitor the reversible conformational changes between α-helix and β-sheet states induced by controlled external chemical stimuli. Our scheme in combination with advanced positioning of the peptides and proteins and more brilliant light sources is highly promising for ultrasensitive in vitro studies down to the single protein level.
KW  - Plasmonics
KW  - surface-enhanced infrared absorption spectroscopy
KW  - proteins
KW  - conformational changes
KW  - biosensing
Y1  - 2019
U6  - https://doi.org/10.1021/acs.nanolett.8b02372
SN  - 1530-6984
SN  - 1530-6992
VL  - 19
IS  - 1
SP  - 1
EP  - 7
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - JOUR
A1  - Schellhorn, Sebastian
A1  - Frank, Mario
A1  - Kreitz, Christoph
T1  - Brückenkurse für mathematische und informatiknahe Studiengänge
JF  - Alles auf Anfang! Befunde und Perspektiven zum Studieneingang
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-428538
SN  - 978-3-86956-452-4
SN  - 2192-1075
SN  - 2192-1083
SP  - 257
EP  - 271
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  - 
TY  - BOOK
A1  - Rana, Kaushik
A1  - Mohapatra, Durga Prasad
A1  - Sidorova, Julia
A1  - Lundberg, Lars
A1  - Sköld, Lars
A1  - Lopes Grim, Luís Fernando
A1  - Sampaio Gradvohl, André Leon
A1  - Cremerius, Jonas
A1  - Siegert, Simon
A1  - Weltzien, Anton von
A1  - Baldi, Annika
A1  - Klessascheck, Finn
A1  - Kalancha, Svitlana
A1  - Lichtenstein, Tom
A1  - Shaabani, Nuhad
A1  - Meinel, Christoph
A1  - Friedrich, Tobias
A1  - Lenzner, Pascal
A1  - Schumann, David
A1  - Wiese, Ingmar
A1  - Sarna, Nicole
A1  - Wiese, Lena
A1  - Tashkandi, Araek Sami
A1  - van der Walt, Estée
A1  - Eloff, Jan H. P.
A1  - Schmidt, Christopher
A1  - Hügle, Johannes
A1  - Horschig, Siegfried
A1  - Uflacker, Matthias
A1  - Najafi, Pejman
A1  - Sapegin, Andrey
A1  - Cheng, Feng
A1  - Stojanovic, Dragan
A1  - Stojnev Ilić, Aleksandra
A1  - Djordjevic, Igor
A1  - Stojanovic, Natalija
A1  - Predic, Bratislav
A1  - González-Jiménez, Mario
A1  - de Lara, Juan
A1  - Mischkewitz, Sven
A1  - Kainz, Bernhard
A1  - van Hoorn, André
A1  - Ferme, Vincenzo
A1  - Schulz, Henning
A1  - Knigge, Marlene
A1  - Hecht, Sonja
A1  - Prifti, Loina
A1  - Krcmar, Helmut
A1  - Fabian, Benjamin
A1  - Ermakova, Tatiana
A1  - Kelkel, Stefan
A1  - Baumann, Annika
A1  - Morgenstern, Laura
A1  - Plauth, Max
A1  - Eberhard, Felix
A1  - Wolff, Felix
A1  - Polze, Andreas
A1  - Cech, Tim
A1  - Danz, Noel
A1  - Noack, Nele Sina
A1  - Pirl, Lukas
A1  - Beilharz, Jossekin Jakob
A1  - De Oliveira, Roberto C. L.
A1  - Soares, Fábio Mendes
A1  - Juiz, Carlos
A1  - Bermejo, Belen
A1  - Mühle, Alexander
A1  - Grüner, Andreas
A1  - Saxena, Vageesh
A1  - Gayvoronskaya, Tatiana
A1  - Weyand, Christopher
A1  - Krause, Mirko
A1  - Frank, Markus
A1  - Bischoff, Sebastian
A1  - Behrens, Freya
A1  - Rückin, Julius
A1  - Ziegler, Adrian
A1  - Vogel, Thomas
A1  - Tran, Chinh
A1  - Moser, Irene
A1  - Grunske, Lars
A1  - Szárnyas, Gábor
A1  - Marton, József
A1  - Maginecz, János
A1  - Varró, Dániel
A1  - Antal, János Benjamin
ED  - Meinel, Christoph
ED  - Polze, Andreas
ED  - Beins, Karsten
ED  - Strotmann, Rolf
ED  - Seibold, Ulrich
ED  - Rödszus, Kurt
ED  - Müller, Jürgen
T1  - HPI Future SOC Lab – Proceedings 2018
N2  - The “HPI Future SOC Lab” is a cooperation of the Hasso Plattner Institute (HPI) and industry partners. Its mission is to enable and promote exchange and interaction between the research community and the industry partners.
  The HPI Future SOC Lab provides researchers with free of charge access to a complete infrastructure of state of the art hard and software. This infrastructure includes components, which might be too expensive for an ordinary research environment, such as servers with up to 64 cores and 2 TB main memory. The offerings address researchers particularly from but not limited to the areas of computer science and business information systems. Main areas of research include cloud computing, parallelization, and In-Memory technologies.
  This technical report presents results of research projects executed in 2018. Selected projects have presented their results on April 17th and November 14th 2017 at the Future SOC Lab Day events.
N2  - Das Future SOC Lab am HPI ist eine Kooperation des Hasso-Plattner-Instituts mit verschiedenen Industriepartnern. Seine Aufgabe ist die Ermöglichung und Förderung des Austausches zwischen Forschungsgemeinschaft und Industrie.
  Am Lab wird interessierten Wissenschaftler:innen eine Infrastruktur von neuester Hard- und Software kostenfrei für Forschungszwecke zur Verfügung gestellt. Dazu zählen Systeme, die im normalen Hochschulbereich in der Regel nicht zu finanzieren wären, bspw. Server mit bis zu 64 Cores und 2 TB Hauptspeicher. Diese Angebote richten sich insbesondere an Wissenschaftler:innen in den Gebieten Informatik und Wirtschaftsinformatik. Einige der Schwerpunkte sind Cloud Computing, Parallelisierung und In-Memory Technologien. 
  In diesem Technischen Bericht werden die Ergebnisse der Forschungsprojekte des Jahres 2018 vorgestellt.  Ausgewählte Projekte stellten ihre Ergebnisse am 17. April und 14. November 2018 im Rahmen des Future SOC Lab Tags vor.
T3  - Technische Berichte des Hasso-Plattner-Instituts für Digital Engineering an der Universität Potsdam - 151 
KW  - Future SOC Lab
KW  - research projects
KW  - multicore architectures
KW  - in-memory technology
KW  - cloud computing
KW  - machine learning
KW  - artifical intelligence
KW  - Future SOC Lab
KW  - Forschungsprojekte
KW  - Multicore Architekturen
KW  - In-Memory Technologie
KW  - Cloud Computing
KW  - maschinelles Lernen
KW  - künstliche Intelligenz
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-563712
SN  - 978-3-86956-547-7
SN  - 1613-5652
SN  - 2191-1665
IS  - 151
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  - 
TY  - JOUR
A1  - Postberg, Frank
A1  - Grün, Eberhard
A1  - Horanyi, Mihaly
A1  - Kempf, Sascha
A1  - Krueger, Harald
A1  - Schmidt, Jürgen
A1  - Spahn, Frank
A1  - Srama, Ralf
A1  - Sternovsky, Zoltan
A1  - Trieloff, Mario
T1  - Compositional mapping of planetary moons by mass spectrometry of dust ejecta
JF  - Planetary and space science
N2  - Classical methods to analyze the surface composition of atmosphereless planetary objects from an orbiter are IR and gamma ray spectroscopy and neutron backscatter measurements. The idea to analyze surface properties with an in-situ instrument has been proposed by Johnson et al. (1998). There, it was suggested to analyze Europa's thin atmosphere with an ion and neutral gas spectrometer. Since the atmospheric components are released by sputtering of the moon's surface, they provide a link to surface composition. Here we present an improved, complementary method to analyze rocky or icy dust particles as samples of planetary objects from which they were ejected. Such particles, generated by the ambient meteoroid bombardment that erodes the surface, are naturally present on all atmosphereless moons and planets. The planetary bodies are enshrouded in clouds of ballistic dust particles, which are characteristic samples of their surfaces. In situ mass spectroscopic analysis of these dust particles impacting onto a detector of an orbiting spacecraft reveals their composition. Recent instrumental developments and tests allow the chemical characterization of ice and dust particles encountered at speeds as low as 1 km/s and an accurate reconstruction of their trajectories. Depending on the sampling altitude, a dust trajectory sensor can trace back the origin of each analyzed grain with about 10 km accuracy at the surface. Since the detection rates are of the order of thousand per orbit, a spatially resolved mapping of the surface composition can be achieved. Certain bodies (e.g., Europa) with particularly dense dust clouds, could provide impact statistics that allow for compositional mapping even on single flybys. Dust impact velocities are in general sufficiently high at orbiters about planetary objects with a radius > 1000 km and with only a thin or no atmosphere. In this work we focus on the scientific benefit of a dust spectrometer on a spacecraft orbiting Earth's Moon as well as Jupiter's Galilean satellites. This 'dust spectrometer' approach provides key chemical and isotopic constraints for varying provinces or geological formations on the surfaces, leading to better understanding of the body's geological evolution.
KW  - Moon
KW  - Europa
KW  - Ganymede
KW  - Dust
KW  - Surface composition
KW  - Spectrometry
Y1  - 2011
U6  - https://doi.org/10.1016/j.pss.2011.05.001
SN  - 0032-0633
VL  - 59
IS  - 14
SP  - 1815
EP  - 1825
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Kärcher, Oskar
A1  - Filstrup, Christopher T.
A1  - Brauns, Mario
A1  - Tasevska, Orhideja
A1  - Patceva, Suzana
A1  - Hellwig, Niels
A1  - Walz, Ariane
A1  - Frank, Karin
A1  - Markovic, Danijela
T1  - Chlorophyll a relationships with nutrients and temperature, and predictions for lakes across perialpine and Balkan mountain regions
JF  - Inland Waters
N2  - Model-derived relationships between chlorophyll a (Chl-a) and nutrients and temperature have fundamental implications for understanding complex interactions among water quality measures used for lake classification, yet accuracy comparisons of different approaches are scarce. Here, we (1) compared Chl-a model performances across linear and nonlinear statistical approaches; (2) evaluated single and combined effects of nutrients, depth, and temperature as lake surface water temperature (LSWT) or altitude on Chl-a; and (3) investigated the reliability of the best water quality model across 13 lakes from perialpine and central Balkan mountain regions. Chl-a was modelled using in situ water quality data from 157 European lakes; elevation data and LSWT in situ data were complemented by remote sensing measurements. Nonlinear approaches performed better, implying complex relationships between Chl-a and the explanatory variables. Boosted regression trees, as the best performing approach, accommodated interactions among predictor variables. Chl-a-nutrient relationships were characterized by sigmoidal curves, with total phosphorus having the largest explanatory power for our study region. In comparison with LSWT, utilization of altitude, the often-used temperature surrogate, led to different influence directions but similar predictive performances. These results support utilizing altitude in models for Chl-a predictions. Compared to Chl-a observations, Chl-a predictions of the best performing approach for mountain lakes (oligotrophic-eutrophic) led to minor differences in trophic state categorizations. Our findings suggest that both models with LSWT and altitude are appropriate for water quality predictions of lakes in mountain regions and emphasize the importance of incorporating interactions among variables when facing lake management challenges.
KW  - chlorophyll a
KW  - nutrients
KW  - Ohrid-Prespa region
KW  - perialpine lakes
KW  - water temperature
Y1  - 2020
U6  - https://doi.org/10.1080/20442041.2019.1689768
SN  - 2044-2041
SN  - 2044-205X
VL  - 10
IS  - 1
SP  - 29
EP  - 41
PB  - Taylor & Francis
CY  - London
ER  - 
TY  - GEN
A1  - Kärcher, Oskar
A1  - Filstrup, Christopher T.
A1  - Brauns, Mario
A1  - Tasevska, Orhideja
A1  - Patceva, Suzana
A1  - Hellwig, Niels
A1  - Walz, Ariane
A1  - Frank, Karin
A1  - Markovic, Danijela
T1  - Chlorophyll a relationships with nutrients and temperature, and predictions for lakes across perialpine and Balkan mountain regions
T2  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - Model-derived relationships between chlorophyll a (Chl-a) and nutrients and temperature have fundamental implications for understanding complex interactions among water quality measures used for lake classification, yet accuracy comparisons of different approaches are scarce. Here, we (1) compared Chl-a model performances across linear and nonlinear statistical approaches; (2) evaluated single and combined effects of nutrients, depth, and temperature as lake surface water temperature (LSWT) or altitude on Chl-a; and (3) investigated the reliability of the best water quality model across 13 lakes from perialpine and central Balkan mountain regions. Chl-a was modelled using in situ water quality data from 157 European lakes; elevation data and LSWT in situ data were complemented by remote sensing measurements. Nonlinear approaches performed better, implying complex relationships between Chl-a and the explanatory variables. Boosted regression trees, as the best performing approach, accommodated interactions among predictor variables. Chl-a-nutrient relationships were characterized by sigmoidal curves, with total phosphorus having the largest explanatory power for our study region. In comparison with LSWT, utilization of altitude, the often-used temperature surrogate, led to different influence directions but similar predictive performances. These results support utilizing altitude in models for Chl-a predictions. Compared to Chl-a observations, Chl-a predictions of the best performing approach for mountain lakes (oligotrophic-eutrophic) led to minor differences in trophic state categorizations. Our findings suggest that both models with LSWT and altitude are appropriate for water quality predictions of lakes in mountain regions and emphasize the importance of incorporating interactions among variables when facing lake management challenges.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1443 
KW  - chlorophyll a
KW  - nutrients
KW  - Ohrid-Prespa region
KW  - perialpine lakes
KW  - water temperature
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-515271
SN  - 1866-8372
IS  - 1
ER  - 
TY  - BOOK
A1  - Fuhrmann, Michaela
A1  - Schubarth, Wilfried
A1  - Schulze-Reichelt, Friederike
A1  - Mauermeister, Sylvi
A1  - Seidel, Andreas
A1  - Hartmann, Nina
A1  - Erdmann, Melinda
A1  - Apostolow, Benjamin
A1  - Wagner, Laura
A1  - Berndt, Sarah
A1  - Wippermann, Melanie
A1  - Ratzlaff, Olaf
A1  - Lumpe, Matthias
A1  - Kirjuchina, Ljuba
A1  - Rost, Sophia
A1  - Zurek, Peter Paul
A1  - Faaß, Marcel
A1  - Schellhorn, Sebastian
A1  - Frank, Mario
A1  - Kreitz, Christoph
A1  - Wagner, Nelli
A1  - Jenneck, Julia
A1  - Kleemann, Katrin
A1  - Vock, Miriam
A1  - Schröder, Christian
A1  - Erdmann, Kathrin
A1  - Koziol, Matthias
A1  - Meißner, Marlen
A1  - Dibiasi, Anna
A1  - Unger, Martin
A1  - Piskunova, Elena V.
A1  - Bahmutskiy, Andrey E.
A1  - Bessonova, Ekatarina A.
A1  - Borovik, Ludmila K.
ED  - Schubarth, Wilfried
ED  - Mauermeister, Sylvi
ED  - Schulze-Reichelt, Friederike
ED  - Seidel, Andreas
T1  - Alles auf Anfang!
BT  - Befunde und Perspektiven zum Studieneingang
T3  - Potsdamer Beiträge zur Hochschulforschung
N2  - Im Zuge der Bologna-Reform ist an Hochschulen vieles in Bewegung gekommen. Studium und Lehre sind stärker ins Blickfeld gerückt. Dabei kommt der Studieneingangsphase besondere Bedeutung zu, werden doch hier die Weichen für ein erfolgreiches Studium gestellt. Deshalb ist es verständlich, dass die Hauptanstrengungen der Hochschulen auf den Studieneingang gerichtet sind – ganz nach dem Motto: „Auf den Anfang kommt es an!“. Konsens herrscht dahingehend, dass der Studieneingang neu zu gestalten ist, doch beim „Wie?“ gibt es unterschiedliche Antworten. Zugleich wird immer deutlicher, dass eine wirksame Neugestaltung der Eingangsphase nur mit einer umfassenden Reform des Studiums gelingen kann.
Ziel des vierten Bandes der Potsdamer Beiträge zur Hochschulforschung ist es, eine Zwischenbilanz der Debatte zum Studieneingang zu ziehen. Auf der Basis empirischer Studien werden unterschiedliche Perspektiven auf den Studieneingang eingenommen und Empfehlungen zur Optimierung des Studieneingangs abgeleitet. Die zahlreichen Untersuchungsergebnisse Potsdamer Forschergruppen werden durch weitere nationale sowie internationale Perspektiven ergänzt. Der Band richtet sich an alle, die sich für die Entwicklung an Hochschulen interessieren.
T3  - Potsdamer Beiträge zur Hochschulforschung - 4 
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-422965
SN  - 978-3-86956-452-4
SN  - 2192-1075
SN  - 2192-1083
IS  - 4
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  - 
TY  - GEN
A1  - Frank, Mario
A1  - Kreitz, Christoph
T1  - A theorem prover for scientific and educational purposes
T2  - Electronic proceedings in theoretical computer science
N2  - We present a prototype of an integrated reasoning environment for educational purposes. The presented tool is a fragment of a proof assistant and automated theorem prover. We describe the existing and planned functionality of the theorem prover and especially the functionality of the educational fragment. This currently supports working with terms of the untyped lambda calculus and addresses both undergraduate students and researchers. We show how the tool can be used to support the students' understanding of functional programming and discuss general problems related to the process of building theorem proving software that aims at supporting both research and education.
Y1  - 2018
U6  - https://doi.org/10.4204/EPTCS.267.4
SN  - 2075-2180
IS  - 267
SP  - 59
EP  - 69
PB  - Open Publishing Association
CY  - Sydney
ER  -