@article{Kollodzeiski2019,
author = {Kollodzeiski, Ulrike},
title = {Religion(en) im Mittelalter und der Fr{\"u}hen Neuzeit},
series = {Zeitschrift f{\"u}r junge Religionswissenschaft},
volume = {13},
journal = {Zeitschrift f{\"u}r junge Religionswissenschaft},
number = {2018},
publisher = {Univ., Seminar f{\"u}r Religionswiss.},
address = {Hannover},
issn = {1862-5886},
doi = {10.4000/zjr.1071},
pages = {1 -- 16},
year = {2019},
abstract = {Wer Religion im mittelalterlichen und fr{\"u}hneuzeitlichen Europa untersuchen will, ist mit {\"a}hnlichen Schwierigkeiten konfrontiert wie bei der Anwendung des Begriffs in außereurop{\"a}ischen Kontexten. Die Menschen damals verf{\"u}gten allenfalls {\"u}ber vergleichbare, nicht aber identische Konzepte. In meinem Artikel werde ich drei dieser m{\"o}glichen {\"a}quivalenten Religionskonzepte vorstellen und auf ihre Anschlussf{\"a}higkeit diskutieren: fides, lex und natio. Um diese Begriffe besser einordnen zu k{\"o}nnen, wird es zun{\"a}chst darum gehen, einige grunds{\"a}tzliche Unterschiede der Rolle von Religion im sp{\"a}ten Mittelalter und der Fr{\"u}hen Neuzeit im Gegensatz zur Moderne in den Blick zu nehmen.},
language = {de}
}
@article{MuehlenbruchZhuoBardenheieretal.2019,
author = {M{\"u}hlenbruch, Kristin and Zhuo, Xiaohui and Bardenheier, Barbara and Shao, Hui and Laxy, Michael and Icks, Andrea and Zhang, Ping and Gregg, Edward W. and Schulze, Matthias Bernd},
title = {Selecting the optimal risk threshold of diabetes risk scores to identify high-risk individuals for diabetes prevention},
series = {Acta Diabetologica},
volume = {57},
journal = {Acta Diabetologica},
number = {4},
publisher = {Springer},
address = {Mailand},
issn = {1432-5233},
doi = {10.1007/s00592-019-01451-1},
pages = {447 -- 454},
year = {2019},
abstract = {Aims: Although risk scores to predict type 2 diabetes exist, cost-effectiveness of risk thresholds to target prevention interventions are unknown. We applied cost-effectiveness analysis to identify optimal thresholds of predicted risk to target a low-cost community-based intervention in the USA. Methods: We used a validated Markov-based type 2 diabetes simulation model to evaluate the lifetime cost-effectiveness of alternative thresholds of diabetes risk. Population characteristics for the model were obtained from NHANES 2001-2004 and incidence rates and performance of two noninvasive diabetes risk scores (German diabetes risk score, GDRS, and ARIC 2009 score) were determined in the ARIC and Cardiovascular Health Study (CHS). Incremental cost-effectiveness ratios (ICERs) were calculated for increasing risk score thresholds. Two scenarios were assumed: 1-stage (risk score only) and 2-stage (risk score plus fasting plasma glucose (FPG) test (threshold 100 mg/dl) in the high-risk group). Results: In ARIC and CHS combined, the area under the receiver operating characteristic curve for the GDRS and the ARIC 2009 score were 0.691 (0.677-0.704) and 0.720 (0.707-0.732), respectively. The optimal threshold of predicted diabetes risk (ICER < \$50,000/QALY gained in case of intervention in those above the threshold) was 7\% for the GDRS and 9\% for the ARIC 2009 score. In the 2-stage scenario, ICERs for all cutoffs >= 5\% were below \$50,000/QALY gained. Conclusions: Intervening in those with >= 7\% diabetes risk based on the GDRS or >= 9\% on the ARIC 2009 score would be cost-effective. A risk score threshold >= 5\% together with elevated FPG would also allow targeting interventions cost-effectively.},
language = {en}
}
@article{DolcosKatsumiMooreetal.2019,
author = {Dolcos, Florin and Katsumi, Yuta and Moore, Matthew and Berggren, Nick and de Gelder, Beatrice and Derakshan, Nazanin and Hamm, Alfons O. and Koster, Ernst H. W. and Ladouceur, Cecile D. and Okon-Singer, Hadas and Ventura-Bort, Carlos and Weymar, Mathias},
title = {Neural correlates of emotion-attention interactions},
series = {Neuroscience and Biobehavioral Reviews},
volume = {108},
journal = {Neuroscience and Biobehavioral Reviews},
publisher = {Elsevier},
address = {Oxford},
issn = {0149-7634},
doi = {10.1016/j.neubiorev.2019.08.017},
pages = {559 -- 601},
year = {2019},
abstract = {Due to their ability to capture attention, emotional stimuli tend to benefit from enhanced perceptual processing, which can be helpful when such stimuli are task-relevant but hindering when they are task-irrelevant. Altered emotion-attention interactions have been associated with symptoms of affective disturbances, and emerging research focuses on improving emotion-attention interactions to prevent or treat affective disorders. In line with the Human Affectome Project's emphasis on linguistic components, we also analyzed the language used to describe attention-related aspects of emotion, and highlighted terms related to domains such as conscious awareness, motivational effects of attention, social attention, and emotion regulation. These terms were discussed within a broader review of available evidence regarding the neural correlates of (1) Emotion-Attention Interactions in Perception, (2) Emotion-Attention Interactions in Learning and Memory, (3) Individual Differences in Emotion-Attention Interactions, and (4) Training and Interventions to Optimize Emotion-Attention Interactions. This comprehensive approach enabled an integrative overview of the current knowledge regarding the mechanisms of emotion-attention interactions at multiple levels of analysis, and identification of emerging directions for future investigations.},
language = {en}
}
@article{MatheisKellerKronborgetal.2019,
author = {Matheis, Svenja and Keller, Lena and Kronborg, Leonie and Schmitt, Manfred and Preckel, Franzis},
title = {Do stereotypes strike twice?},
series = {Asia-Pacific journal of teacher education},
volume = {48},
journal = {Asia-Pacific journal of teacher education},
number = {2},
publisher = {Routledge Journals, Taylor \& Francis},
address = {Abingdon},
issn = {1469-2945},
doi = {10.1080/1359866X.2019.1576029},
pages = {213 -- 232},
year = {2019},
abstract = {Stereotypes influence teachers' perception of and behaviour towards students, thus shaping students' learning opportunities. The present study investigated how 315 Australian pre-service teachers' stereotypes about giftedness and gender are related to their perception of students' intellectual ability, adjustment, and social-emotional ability, using an experimental vignette approach and controlling for social desirability in pre-service teachers' responses. Repeated-measures ANOVA showed that pre-service teachers associated giftedness with higher intellectual ability, but with less adjustment compared to average-ability students. Furthermore, pre-service teachers perceived male students as less socially and emotionally competent and less adjusted than female students. Additionally, pre-service teachers seemed to perceive female average-ability students' adjustment as most favourable compared to male average-ability students and gifted students. Findings point to discrepancies between actual characteristics of gifted female and male students and stereotypes in teachers' beliefs. Consequences of stereotyping and implications for teacher education are discussed.},
language = {en}
}
@article{RubergRothweilerVerissimoetal.2019,
author = {Ruberg, Tobias and Rothweiler, Monika and Ver{\´i}ssimo, Jo{\~a}o Marques and Clahsen, Harald},
title = {Childhood bilingualism and Specific Language Impairment},
series = {Bilingualism: Language and Cognition},
volume = {23},
journal = {Bilingualism: Language and Cognition},
number = {3},
publisher = {Cambridge Univ. Press},
address = {Cambridge},
issn = {1366-7289},
doi = {10.1017/S1366728919000580},
pages = {668 -- 680},
year = {2019},
abstract = {This study addresses the question of whether and how growing up with more than one language shapes a child's language impairment. Our focus is on Specific Language Impairment (SLI) in bilingual (Turkish-German) children. We specifically investigated a range of phenomena related to the so-called CP (Complementizer Phrase) in German, the hierarchically highest layer of syntactic clause structure, which has been argued to be particularly affected in children with SLI. Spontaneous speech data were examined from bilingual children with SLI in comparison to two comparison groups: (i) typically-developing bilingual children, (ii) monolingual children with SLI. We found that despite persistent difficulty with subject-verb agreement, the two groups of children with SLI did not show any impairment of the CP-domain. We conclude that while subject-verb agreement is a suitable linguistic marker of SLI in German-speaking children, for both monolingual and bilingual ones, 'vulnerability of the CP-domain' is not.},
language = {en}
}
@article{SchornSalmanCarvalhoLittmannetal.2019,
author = {Schorn, Sina and Salman-Carvalho, Verena and Littmann, Sten and Ionescu, Danny and Grossart, Hans-Peter and Cypionka, Heribert},
title = {Cell architecture of the giant sulfur bacterium achromatium oxaliferum},
series = {FEMS Microbiology Ecology},
volume = {96},
journal = {FEMS Microbiology Ecology},
number = {2},
publisher = {Oxford University Press},
address = {Oxford},
issn = {1574-6941},
doi = {10.1093/femsec/fiz200},
pages = {1 -- 8},
year = {2019},
abstract = {Achromatium oxaliferum is a large sulfur bacterium easily recognized by large intracellular calcium carbonate bodies. Although these bodies often fill major parts of the cells' volume, their role and specific intracellular location are unclear. In this study, we used various microscopy and staining techniques to identify the cell compartment harboring the calcium carbonate bodies. We observed that Achromatium cells often lost their calcium carbonate bodies, either naturally or induced by treatments with diluted acids, ethanol, sodium bicarbonate and UV radiation which did not visibly affect the overall shape and motility of the cells (except for UV radiation). The water-soluble fluorescent dye fluorescein easily diffused into empty cavities remaining after calcium carbonate loss. Membranes (stained with Nile Red) formed a network stretching throughout the cell and surrounding empty or filled calcium carbonate cavities. The cytoplasm (stained with FITC and SYBR Green for nucleic acids) appeared highly condensed and showed spots of dissolved Ca2+ (stained with Fura-2). From our observations, we conclude that the calcium carbonate bodies are located in the periplasm, in extra-cytoplasmic pockets of the cytoplasmic membrane and are thus kept separate from the cell's cytoplasm. This periplasmic localization of the carbonate bodies might explain their dynamic formation and release upon environmental changes.},
language = {en}
}
@article{KaempfPlessenLauterbachetal.2019,
author = {K{\"a}mpf, Lucas and Plessen, Birgit and Lauterbach, Stefan and Nantke, Carla and Meyer, Hanno and Chapligin, Bernhard and Brauer, Achim},
title = {Stable oxygen and carbon isotopes of carbonates in lake sediments as a paleoflood proxy},
series = {Geology / the Geological Society of America},
volume = {48},
journal = {Geology / the Geological Society of America},
number = {1},
publisher = {American Institute of Physics},
address = {Melville, NY},
issn = {1943-2682},
doi = {10.1130/G46593.1},
pages = {3 -- 7},
year = {2019},
abstract = {Lake sediments are increasingly explored as reliable paleoflood archives. In addition to established flood proxies including detrital layer thickness, chemical composition, and grain size, we explore stable oxygen and carbon isotope data as paleoflood proxies for lakes in catchments with carbonate bedrock geology. In a case study from Lake Mondsee (Austria), we integrate high-resolution sediment trapping at a proximal and a distal location and stable isotope analyses of varved lake sediments to investigate flood-triggered detrital sediment flux. First, we demonstrate a relation between runoff, detrital sediment flux, and isotope values in the sediment trap record covering the period 2011-2013 CE including 22 events with daily (hourly) peak runoff ranging from 10 (24) m(3) s(-1) to 79 (110) m(3) s(-1). The three- to ten-fold lower flood-triggered detrital sediment deposition in the distal trap is well reflected by attenuated peaks in the stable isotope values of trapped sediments. Next, we show that all nine flood-triggered detrital layers deposited in a sediment record from 1988 to 2013 have elevated isotope values compared with endogenic calcite. In addition, even two runoff events that did not cause the deposition of visible detrital layers are distinguished by higher isotope values. Empirical thresholds in the isotope data allow estimation of magnitudes of the majority of floods, although in some cases flood magnitudes are overestimated because local effects can result in too-high isotope values. Hence we present a proof of concept for stable isotopes as reliable tool for reconstructing flood frequency and, although with some limitations, even for flood magnitudes.},
language = {en}
}
@article{HarmsScalbertZamoraRosetal.2019,
author = {Harms, Laura M. and Scalbert, Augustin and Zamora-Ros, Raul and Rinaldi, Sabina and Jenab, Mazda and Murphy, Neil and Achaintre, David and Tj{\o}nneland, Anne and Olsen, Anja and Overvad, Kim and Aleksandrova, Krasimira},
title = {Plasma polyphenols associated with lower high-sensitivity C-reactive protein concentrations},
series = {British Journal of Nutrition},
volume = {123},
journal = {British Journal of Nutrition},
number = {2},
publisher = {Cambridge University Press},
address = {Cambridge},
issn = {0007-1145},
doi = {10.1017/S0007114519002538},
pages = {198 -- 208},
year = {2019},
abstract = {Experimental studies have reported on the anti-inflammatory properties of polyphenols. However, results from epidemiological investigations have been inconsistent and especially studies using biomarkers for assessment of polyphenol intake have been scant. We aimed to characterise the association between plasma concentrations of thirty-five polyphenol compounds and low-grade systemic inflammation state as measured by high-sensitivity C-reactive protein (hsCRP). A cross-sectional data analysis was performed based on 315 participants in the European Prospective Investigation into Cancer and Nutrition cohort with available measurements of plasma polyphenols and hsCRP. In logistic regression analysis, the OR and 95 \% CI of elevated serum hsCRP (>3 mg/l) were calculated within quartiles and per standard deviation higher level of plasma polyphenol concentrations. In a multivariable-adjusted model, the sum of plasma concentrations of all polyphenols measured (per standard deviation) was associated with 29 (95 \% CI 50, 1) \% lower odds of elevated hsCRP. In the class of flavonoids, daidzein was inversely associated with elevated hsCRP (OR 0 center dot 66, 95 \% CI 0 center dot 46, 0 center dot 96). Among phenolic acids, statistically significant associations were observed for 3,5-dihydroxyphenylpropionic acid (OR 0 center dot 58, 95 \% CI 0 center dot 39, 0 center dot 86), 3,4-dihydroxyphenylpropionic acid (OR 0 center dot 63, 95 \% CI 0 center dot 46, 0 center dot 87), ferulic acid (OR 0 center dot 65, 95 \% CI 0 center dot 44, 0 center dot 96) and caffeic acid (OR 0 center dot 69, 95 \% CI 0 center dot 51, 0 center dot 93). The odds of elevated hsCRP were significantly reduced for hydroxytyrosol (OR 0 center dot 67, 95 \% CI 0 center dot 48, 0 center dot 93). The present study showed that polyphenol biomarkers are associated with lower odds of elevated hsCRP. Whether diet rich in bioactive polyphenol compounds could be an effective strategy to prevent or modulate deleterious health effects of inflammation should be addressed by further well-powered longitudinal studies.},
language = {en}
}
@article{BalderjahnLeeSeegebarthetal.2019,
author = {Balderjahn, Ingo and Lee, Michael S. W. and Seegebarth, Barbara and Peyer, Mathias},
title = {A sustainable pathway to consumer wellbeing},
series = {The Journal of consumer affairs},
volume = {54},
journal = {The Journal of consumer affairs},
number = {2},
publisher = {Wiley},
address = {Malden, Mass.},
issn = {0022-0078},
doi = {10.1111/joca.12278},
pages = {456 -- 488},
year = {2019},
abstract = {This study investigates the effect of different anticonsumption constructs on consumer wellbeing. The study assumes that people will only lower their level of consumption if doing so does not also lower personal wellbeing. More precisely, this research investigates how specific subtypes of sustainable anticonsumption (e.g., voluntary simplicity, collaborative consumption, and debt-free living) relate to different states of consumer's wellbeing (e.g., financial, psychosocial, and subjective wellbeing). This work also examines whether consumer empowerment can improve personal wellbeing and strengthen the anticonsumption wellbeing relationship. The results show that voluntarily foregoing consumption does not reduce wellbeing and consumer empowerment plays a significant role in supporting sustainable pathways to consumer wellbeing. This study reasons that empowerment improves consumer sovereignty, but may be detrimental for consumers heavily concerned about debt-free living. The present investigation concludes by proposing implications for public and consumer policymakers wishing to promote appropriate sustainable (anticonsumption) pathways to consumer wellbeing.},
language = {en}
}
@article{GuRisseLuetal.2019,
author = {Gu, Sasa and Risse, Sebastian and Lu, Yan and Ballauff, Matthias},
title = {Mechanism of the oxidation of 3,3′,5,5′-tetramethylbenzidine catalyzed by peroxidase-like Pt nanoparticles immobilized in spherical polyelectrolyte brushes},
series = {ChemPhysChem},
volume = {21},
journal = {ChemPhysChem},
number = {5},
publisher = {Wiley-VCH},
address = {Weinheim},
issn = {1439-4235},
doi = {10.1002/cphc.201901087},
pages = {450 -- 458},
year = {2019},
abstract = {Experimental and kinetic modelling studies are presented to investigate the mechanism of 3,3 ',5,5 '-tetramethylbenzidine (TMB) oxidation by hydrogen peroxide (H2O2) catalyzed by peroxidase-like Pt nanoparticles immobilized in spherical polyelectrolyte brushes (SPB-Pt). Due to the high stability of SPB-Pt colloidal, this reaction can be monitored precisely in situ by UV/VIS spectroscopy. The time-dependent concentration of the blue-colored oxidation product of TMB expressed by different kinetic models was used to simulate the experimental data by a genetic fitting algorithm. After falsifying the models with abundant experimental data, it is found that both H2O2 and TMB adsorb on the surface of Pt nanoparticles to react, indicating that the reaction follows the Langmuir-Hinshelwood mechanism. A true rate constant k, characterizing the rate-determining step of the reaction and which is independent on the amount of catalysts used, is obtained for the first time. Furthermore, it is found that the product adsorbes strongly on the surface of nanoparticles, thus inhibiting the reaction. The entire analysis provides a new perspective to study the catalytic mechanism and evaluate the catalytic activity of the peroxidase-like nanoparticles.},
language = {en}
}
@article{KieferKrahlHirtetal.2019,
author = {Kiefer, Thomas and Krahl, Dorothea and Hirt, Carsten and V{\"o}ller, Heinz and Voelkel, Lorenz and Daeschlein, Georg},
title = {Influence of treatment caused impairments on anxiety and depression in patients with cancer of the Esophagus or the Esophagogastric junction},
series = {Journal of gastrointestinal cancer},
volume = {51},
journal = {Journal of gastrointestinal cancer},
number = {1},
publisher = {Springer},
address = {New York},
issn = {1941-6628},
doi = {10.1007/s12029-018-00193-7},
pages = {30 -- 34},
year = {2019},
abstract = {Purpose After therapy of cancer of the esophagus or the esophagogastric junction, patients often suffer from anxiety and depression. Some risk factors for elevated anxiety and depression are reported, but the influence of steatorrhea, the frequency of which has only recently been reported, has not yet been investigated. Method Using the Hospital Anxiety and Depression Scale (HADS), we analyzed the correlation of anxiety and depression with steatorrhea, appetite, and weight loss in 72 patients with cancer of the esophagus or of the esophagogastric junction, who were treated at our rehabilitation clinic between January 2011 and December 2014. In addition, effectiveness of psychological interviews was analyzed. Results We have evaluable anxiety questionnaires from 51 patients showing a median anxiety value of 5 (range 0-13). As for the depression, results from evaluable questionnaires of 54 patients also showed a median value of 5 (range 0-15). Increased anxiety and depression values (> 7) were observed in 25.4\% and 37.0\% of the patients respectively. Patients who were admitted with steatorrhea for rehabilitation showed a statistically higher anxiety value (median 6.3 vs. 4.7, p < 0.05), reduced appetite, and a weight loss above 15 kg depicting a correlation to anxiety and depression. Psychological conversations helped lowering the depression but had no influence on anxiety. Conclusions Impairments after cancer treatment, such as steatorrhea, appetite loss, and weight loss, should be interpreted as an alarm signal and should necessitate screening for increased anxiety and depression. Psychological therapy can help improving the extent of the depression.},
language = {en}
}
@article{TarazonaMachatschekLendlein2019,
author = {Tarazona, Natalia A. and Machatschek, Rainhard Gabriel and Lendlein, Andreas},
title = {Unraveling the interplay between abiotic hydrolytic degradation and crystallization of bacterial polyesters comprising short and medium side-chain-length Polyhydroxyalkanoates},
series = {Biomacromolecules : an interdisciplinary journal focused at the interface of polymer science and the biological sciences},
volume = {21},
journal = {Biomacromolecules : an interdisciplinary journal focused at the interface of polymer science and the biological sciences},
number = {2},
publisher = {American Chemical Society},
address = {Washington},
issn = {1525-7797},
doi = {10.1021/acs.biomac.9b01458},
pages = {761 -- 771},
year = {2019},
abstract = {Polyhydroxyalkanoates (PHAs) have attracted attention as degradable (co)polyesters which can be produced by microorganisms with variations in the side chain. This structural variation influences not only the thermomechanical properties of the material but also its degradation behavior. Here, we used Langmuir monolayers at the air-water (A-W) interface as suitable models for evaluating the abiotic degradation of two PHAs with different side-chain lengths and crystallinity. By controlling the polymer state (semi crystalline, amorphous), the packing density, the pH, and the degradation mechanism, we could draw several significant conclusions. (i) The maximum degree of crystallinity for a PHA film to be efficiently degraded up to pH = 12.3 is 40\%. (ii) PHA made of repeating units with shorter side-chain length are more easily hydrolyzed under alkaline conditions. The efficiency of alkaline hydrolysis decreased by about 65\% when the polymer was 40\% crystalline. (iii) In PHA films with a relatively high initial crystallinity, abiotic degradation initiated a chemicrystallization phenomenon, detected as an increase in the storage modulus (E'). This could translate into an increase in brittleness and reduction in the material degradability. Finally, we demonstrate the stability of the measurement system for long-term experiments, which allows degradation conditions for polymers that could closely simulate real-time degradation.},
language = {en}
}
@article{EiblHainzlVeselyetal.2019,
author = {Eibl, Eva P. S. and Hainzl, Sebastian and Vesely, Nele I. K. and Walter, Thomas R. and Jousset, Philippe and Hersir, Gylfi Pall and Dahm, Torsten},
title = {Eruption interval monitoring at strokkur Geyser, Iceland},
series = {Geophysical research letters},
volume = {47},
journal = {Geophysical research letters},
number = {1},
publisher = {American Geophysical Union},
address = {Washington},
issn = {0094-8276},
doi = {10.1029/2019GL085266},
pages = {10},
year = {2019},
abstract = {Geysers are hot springs whose frequency of water eruptions remain poorly understood. We set up a local broadband seismic network for 1 year at Strokkur geyser, Iceland, and developed an unprecedented catalog of 73,466 eruptions. We detected 50,135 single eruptions but find that the geyser is also characterized by sets of up to six eruptions in quick succession. The number of single to sextuple eruptions exponentially decreased, while the mean waiting time after an eruption linearly increased (3.7 to 16.4 min). While secondary eruptions within double to sextuple eruptions have a smaller mean seismic amplitude, the amplitude of the first eruption is comparable for all eruption types. We statistically model the eruption frequency assuming discharges proportional to the eruption multiplicity and a constant probability for subsequent events within a multituple eruption. The waiting time after an eruption is predictable but not the type or amplitude of the next one.
Plain Language Summary Geysers are springs that often erupt in hot water fountains. They erupt more often than volcanoes but are quite similar. Nevertheless, it is poorly understood how often volcanoes and also geysers erupt. We created a list of 73,466 eruption times of Strokkur geyser, Iceland, from 1 year of seismic data. The geyser erupted one to six times in quick succession. We found 50,135 single eruptions but only 1 sextuple eruption, while the mean waiting time increased from 3.7 min after single eruptions to 16.4 min after sextuple eruptions. Mean amplitudes of each eruption type were higher for single eruptions, but all first eruptions in a succession were similar in height. Assuming a constant heat inflow at depth, we can predict the waiting time after an eruption but not the type or amplitude of the next one.},
language = {en}
}
@article{MalinovaKoesslerOrawetzetal.2019,
author = {Malinova, Irina and K{\"o}ssler, Stella and Orawetz, Tom and Matthes, Ulrike and Orzechowski, Slawomir and Koch, Anke and Fettke, J{\"o}rg},
title = {Identification of two Arabidopsis thaliana plasma membrane transporters able to transport glucose 1-phosphate},
series = {Plant \& cell physiology},
volume = {61},
journal = {Plant \& cell physiology},
number = {2},
publisher = {Oxford University Press},
address = {Oxford},
issn = {0032-0781},
doi = {10.1093/pcp/pcz206},
pages = {381 -- 392},
year = {2019},
abstract = {Primary carbohydrate metabolism in plants includes several sugar and sugar-derivative transport processes. Over recent years, evidences have shown that in starch-related transport processes, in addition to glucose 6-phosphate, maltose, glucose and triose-phosphates, glucose 1-phosphate also plays a role and thereby increases the possible fluxes of sugar metabolites in planta. In this study, we report the characterization of two highly similar transporters, At1g34020 and At4g09810, in Arabidopsis thaliana, which allow the import of glucose 1-phosphate through the plasma membrane. Both transporters were expressed in yeast and were biochemically analyzed to reveal an antiport of glucose 1-phosphate/phosphate. Furthermore, we showed that the apoplast of Arabidopsis leaves contained glucose 1-phosphate and that the corresponding mutant of these transporters had higher glucose 1-phosphate amounts in the apoplast and alterations in starch and starch-related metabolism.},
language = {en}
}
@article{MachatschekLendlein2019,
author = {Machatschek, Rainhard Gabriel and Lendlein, Andreas},
title = {Fundamental insights in PLGA degradation from thin film studies},
series = {Journal of controlled release : official journal of the Controlled Release Society and of the Japanese Society of Drug Delivery Systems},
volume = {319},
journal = {Journal of controlled release : official journal of the Controlled Release Society and of the Japanese Society of Drug Delivery Systems},
publisher = {Elsevier},
address = {New York},
issn = {0168-3659},
doi = {10.1016/j.jconrel.2019.12.044},
pages = {276 -- 284},
year = {2019},
abstract = {Poly(lactide-co-glycolide)s are commercially available degradable implant materials, which are typically selected based on specifications given by the manufacturer, one of which is their molecular weight. Here, we address the question whether variations in the chain length and their distribution affect the degradation behavior of Poly[(rac-lactide)-co-glycolide]s (PDLLGA). The hydrolysis was studied in ultrathin films at the air-water interface in order to rule out any morphological effects. We found that both for purely hydrolytic degradation as well as under enzymatic catalysis, the molecular weight has very little effect on the overall degradation kinetics of PDLLGAs. The quantitative analysis suggested a random scission mechanism. The monolayer experiments showed that an acidic micro-pH does not accelerate the degradation of PDLLGAs, in contrast to alkaline conditions. The degradation experiments were combined with interfacial rheology measurements, which showed a drastic decrease of the viscosity at little mass loss. The extrapolated molecular weight behaved similar to the viscosity, dropping to a value near to the solubility limit of PDLLGA oligomers before mass loss set in. This observation suggests a solubility controlled degradation of PDLLGA. Conclusively, the molecular weight affects the degradation of PDLLGA devices mostly in indirect ways, e.g. by determining their morphology and porosity during fabrication. Our study demonstrates the relevance of the presented Langmuir degradation method for the design of controlled release systems.},
language = {en}
}
@article{SolgerKunzFinketal.2019,
author = {Solger, Franziska and Kunz, Tobias C. and Fink, Julian and Paprotka, Kerstin and Pfister, Pauline and Hagen, Franziska and Schumacher, Fabian and Kleuser, Burkhard and Seibel, J{\"u}rgen and Rudel, Thomas},
title = {A role of sphingosine in the intracellular survival of Neisseria gonorrhoeae},
series = {Frontiers in Cellular and Infection Microbiology},
volume = {10},
journal = {Frontiers in Cellular and Infection Microbiology},
publisher = {Frontiers Media},
address = {Lausanne},
issn = {2235-2988},
doi = {10.3389/fcimb.2020.00215},
pages = {12},
year = {2019},
abstract = {Obligate human pathogenic Neisseria gonorrhoeae are the second most frequent bacterial cause of sexually transmitted diseases. These bacteria invade different mucosal tissues and occasionally disseminate into the bloodstream. Invasion into epithelial cells requires the activation of host cell receptors by the formation of ceramide-rich platforms. Here, we investigated the role of sphingosine in the invasion and intracellular survival of gonococci. Sphingosine exhibited an anti-gonococcal activity in vitro. We used specific sphingosine analogs and click chemistry to visualize sphingosine in infected cells. Sphingosine localized to the membrane of intracellular gonococci. Inhibitor studies and the application of a sphingosine derivative indicated that increased sphingosine levels reduced the intracellular survival of gonococci. We demonstrate here, that sphingosine can target intracellular bacteria and may therefore exert a direct bactericidal effect inside cells.},
language = {en}
}
@article{Huebener2019,
author = {H{\"u}bener, Kristina},
title = {Vollstreckungsrechtlicher Erziehungsauftrag in der DDR 1949 bis 1989/90},
series = {Schwert der Justiz : das Gerichtsvollzieherwesen in Deutschland von 1800 bis zur Gegenwart},
journal = {Schwert der Justiz : das Gerichtsvollzieherwesen in Deutschland von 1800 bis zur Gegenwart},
publisher = {be.bra wissenschafts Verlag},
address = {Berlin},
isbn = {978-3-95410-242-6},
pages = {129 -- 141},
year = {2019},
language = {de}
}
@article{Weigle2019,
author = {Weigle, Jeremias},
title = {Die Organisation des Gerichtsvolzieherwesen 1945-1949},
series = {Schwert der Justiz : das Gerichtsvollzieherwesen in Deutschland von 1800 bis zur Gegenwart},
journal = {Schwert der Justiz : das Gerichtsvollzieherwesen in Deutschland von 1800 bis zur Gegenwart},
publisher = {be.bra wissenschafts Verlag},
address = {Berlin},
isbn = {978-3-95410-242-6},
pages = {101 -- 127},
year = {2019},
language = {de}
}
@article{ZareHamedani2019,
author = {Zare-Hamedani, Naghme},
title = {Gerichtsvollzieher im "Dritten Reich"},
series = {Schwert der Justiz : das Gerichtsvollzieherwesen in Deutschland von 1800 bis zur Gegenwart},
journal = {Schwert der Justiz : das Gerichtsvollzieherwesen in Deutschland von 1800 bis zur Gegenwart},
publisher = {be.bra wissenschafts Verlag},
address = {Berlin},
isbn = {978-3-95410-242-6},
year = {2019},
language = {de}
}
@article{Goertemaker2019,
author = {G{\"o}rtemaker, Manfred},
title = {Vorwort},
series = {Schwert der Justiz : das Gerichtsvollzieherwesen in Deutschland von 1800 bis zur Gegenwart},
journal = {Schwert der Justiz : das Gerichtsvollzieherwesen in Deutschland von 1800 bis zur Gegenwart},
publisher = {be.bra wissenschafts Verlag},
address = {Berlin},
isbn = {978-3-95410-242-6},
pages = {7 -- 9},
year = {2019},
language = {de}
}
@article{HeisselPietrekRappetal.2019,
author = {Heissel, Andreas and Pietrek, Anou F. and Rapp, Michael A. and Heinzel, Stephan and Williams, Geoffrey},
title = {Perceived health care climate of older people attending an exercise program},
series = {Journal of aging and physical activity : JAPA ; the official journal of the International Society for Aging and Physical Activity},
volume = {28},
journal = {Journal of aging and physical activity : JAPA ; the official journal of the International Society for Aging and Physical Activity},
number = {2},
publisher = {Human Kinetics Publ.},
address = {Champaign},
issn = {1063-8652},
doi = {10.1123/japa.2018-0350},
pages = {276 -- 286},
year = {2019},
abstract = {The role of perceived need support from exercise professionals in improving mental health was examined in a sample of older adults, thereby validating the short Health Care Climate Questionnaire. A total of 491 older people (M = 72.68 years; SD = 5.47) attending a health exercise program participated in this study. Cronbach's alpha was found to be high (alpha = .90). Satisfaction with the exercise professional correlated moderately with the short Health Care Climate Questionnaire mean value (r = .38; p < .01). The mediator analyses yielded support for the self-determination theory process model in older adults by showing both basic need satisfaction and frustration as mediating variables between perceived autonomy support and depressive symptoms. The short Health Care Climate Questionnaire is an economical instrument for assessing basic need satisfaction provided by the exercise therapist from the participant's perspective. Furthermore, this cross-sectional study supported the link from coaching style to the satisfaction/frustration of basic psychological needs, which in turn, predicted mental health. Analyses of criterion validity suggest a revision of the construct by integrating need frustration.},
language = {en}
}
@article{HoehleBijeljacBabicNazzi2019,
author = {H{\"o}hle, Barbara and Bijeljac-Babic, Ranka and Nazzi, Thierry},
title = {Variability and stability in early language acquisition},
series = {Bilingualism : language and cognition},
volume = {23},
journal = {Bilingualism : language and cognition},
number = {1},
publisher = {Cambridge Univ. Press},
address = {New York},
issn = {1366-7289},
doi = {10.1017/S1366728919000348},
pages = {56 -- 71},
year = {2019},
abstract = {Many human infants grow up learning more than one language simultaneously but only recently has research started to study early language acquisition in this population more systematically. The paper gives an overview on findings on early language acquisition in bilingual infants during the first two years of life and compares these findings to current knowledge on early language acquisition in monolingual infants. Given the state of the research, the overview focuses on research on phonological and early lexical development in the first two years of life. We will show that the developmental trajectory of early language acquisition in these areas is very similar in mono- and bilingual infants suggesting that these early steps into language are guided by mechanisms that are rather robust against the differences in the conditions of language exposure that mono- and bilingual infants typically experience.},
language = {en}
}
@article{CervantesVillaShpritsAseevetal.2019,
author = {Cervantes Villa, Juan Sebastian and Shprits, Yuri and Aseev, Nikita and Drozdov, Alexander and Castillo Tibocha, Angelica Maria and Stolle, Claudia},
title = {Identifying radiation belt electron source and loss processes by assimilating spacecraft data in a three-dimensional diffusion model},
series = {Journal of geophysical research : Space physics},
volume = {125},
journal = {Journal of geophysical research : Space physics},
number = {1},
publisher = {American Geophysical Union},
address = {Washington},
issn = {2169-9380},
doi = {10.1029/2019JA027514},
pages = {16},
year = {2019},
abstract = {Data assimilation aims to blend incomplete and inaccurate data with physics-based dynamical models. In the Earth's radiation belts, it is used to reconstruct electron phase space density, and it has become an increasingly important tool in validating our current understanding of radiation belt dynamics, identifying new physical processes, and predicting the near-Earth hazardous radiation environment. In this study, we perform reanalysis of the sparse measurements from four spacecraft using the three-dimensional Versatile Electron Radiation Belt diffusion model and a split-operator Kalman filter over a 6-month period from 1 October 2012 to 1 April 2013. In comparison to previous works, our 3-D model accounts for more physical processes, namely, mixed pitch angle-energy diffusion, scattering by Electromagnetic Ion Cyclotron waves, and magnetopause shadowing. We describe how data assimilation, by means of the innovation vector, can be used to account for missing physics in the model. We use this method to identify the radial distances from the Earth and the geomagnetic conditions where our model is inconsistent with the measured phase space density for different values of the invariants mu and K. As a result, the Kalman filter adjusts the predictions in order to match the observations, and we interpret this as evidence of where and when additional source or loss processes are active. The current work demonstrates that 3-D data assimilation provides a comprehensive picture of the radiation belt electrons and is a crucial step toward performing reanalysis using measurements from ongoing and future missions.},
language = {en}
}
@article{BlasiusRudolfWeithoffetal.2019,
author = {Blasius, Bernd and Rudolf, Lars and Weithoff, Guntram and Gaedke, Ursula and Fussmann, Gregor F.},
title = {Long-term cyclic persistence in an experimental predator-prey system},
series = {Nature : the international weekly journal of science},
volume = {577},
journal = {Nature : the international weekly journal of science},
number = {7789},
publisher = {Nature Publ. Group},
address = {London},
issn = {0028-0836},
doi = {10.1038/s41586-019-1857-0},
pages = {226 -- 230},
year = {2019},
abstract = {Predator-prey cycles rank among the most fundamental concepts in ecology, are predicted by the simplest ecological models and enable, theoretically, the indefinite persistence of predator and prey(1-4). However, it remains an open question for how long cyclic dynamics can be self-sustained in real communities. Field observations have been restricted to a few cycle periods(5-8) and experimental studies indicate that oscillations may be short-lived without external stabilizing factors(9-19). Here we performed microcosm experiments with a planktonic predator-prey system and repeatedly observed oscillatory time series of unprecedented length that persisted for up to around 50 cycles or approximately 300 predator generations. The dominant type of dynamics was characterized by regular, coherent oscillations with a nearly constant predator-prey phase difference. Despite constant experimental conditions, we also observed shorter episodes of irregular, non-coherent oscillations without any significant phase relationship. However, the predator-prey system showed a strong tendency to return to the dominant dynamical regime with a defined phase relationship. A mathematical model suggests that stochasticity is probably responsible for the reversible shift from coherent to non-coherent oscillations, a notion that was supported by experiments with external forcing by pulsed nutrient supply. Our findings empirically demonstrate the potential for infinite persistence of predator and prey populations in a cyclic dynamic regime that shows resilience in the presence of stochastic events.},
language = {en}
}
@article{HehnMendezUebernickeletal.2019,
author = {Hehn, Jennifer and Mendez, Daniel and Uebernickel, Falk and Brenner, Walter and Broy, Manfred},
title = {On integrating design thinking for human-centered requirements engineering},
series = {IEEE software},
volume = {37},
journal = {IEEE software},
number = {2},
publisher = {Inst. of Electr. and Electronics Engineers},
address = {Los Alamitos},
issn = {0740-7459},
doi = {10.1109/MS.2019.2957715},
pages = {25 -- 31},
year = {2019},
abstract = {We elaborate on the possibilities and needs to integrate design thinking into requirements engineering, drawing from our research and project experiences. We suggest three approaches for tailoring and integrating design thinking and requirements engineering with complementary synergies and point at open challenges for research and practice.},
language = {en}
}
@article{LiChenQiuetal.2019,
author = {Li, Changsheng and Chen, Gangjin and Qiu, Xunlin and Gao, Meng and Gerhard, Reimund},
title = {Modified polytetrafluoroethylene},
series = {Applied physics express : APEX},
volume = {13},
journal = {Applied physics express : APEX},
number = {1},
publisher = {IOP Publ. Ltd.},
address = {Bristol},
issn = {1882-0778},
doi = {10.7567/1882-0786/ab5b23},
pages = {5},
year = {2019},
abstract = {Three poly(tetrafluoroethylene-hexafluoropropylene-vinylidenefluoride) (TFE-HFP-VDF or THV) terpolymers (Dyneon (R)) with different monomer ratios are investigated to demonstrate the concept of "modified" PTFE for space-charge electrets. HFP and VDF monomers distort the highly ordered PTFE molecules, which effectively enhances processability and adversely affects space-charge storage. Particularly, VDF component renders the material polar and probably also more conductive, partially undermining the space-charge-storage capabilities of PTFE. Nevertheless, the terpolymer THV815 with a TFE/HFP/VDF wt\% ratio of 76.1/10.9/13 combines easy processability and relatively good space-charge stability. Our results shed light on novel concepts for space-charge electret materials with enhanced processing properties and reasonable charge-storage capabilities.},
language = {en}
}
@article{ChenLiuLiuetal.2019,
author = {Chen, Jun and Liu, Rui and Liu, Kai and Awasthi, Arun Kumar and Zhang, Peijin and Wang, Yuming and Kliem, Bernhard},
title = {Extreme-ultraviolet late phase of solar flares},
series = {The astrophysical journal : an international review of spectroscopy and astronomical physics},
volume = {890},
journal = {The astrophysical journal : an international review of spectroscopy and astronomical physics},
number = {2},
publisher = {Institute of Physics Publ.},
address = {London},
issn = {0004-637X},
doi = {10.3847/1538-4357/ab6def},
pages = {10},
year = {2019},
abstract = {A second peak in the extreme ultraviolet sometimes appears during the gradual phase of solar flares, which is known as the EUV late phase (ELP). Stereotypically ELP is associated with two separated sets of flaring loops with distinct sizes, and it has been debated whether ELP is caused by additional heating or extended plasma cooling in the longer loop system. Here we carry out a survey of 55 M-and-above GOES-class flares with ELP during 2010-2014. Based on the flare-ribbon morphology, these flares are categorized as circular-ribbon (19 events), two-ribbon (23 events), and complex-ribbon (13 events) flares. Among them, 22 events (40\%) are associated with coronal mass ejections, while the rest are confined. An extreme ELP, with the late-phase peak exceeding the main-phase peak, is found in 48\% of two-ribbon flares, 37\% of circular-ribbon flares, and 31\% of complex-ribbon flares, suggesting that additional heating is more likely present during ELP in two-ribbon than in circular-ribbon flares. Overall, cooling may be the dominant factor causing the delay of the ELP peak relative to the main-phase peak, because the loop system responsible for the ELP emission is generally larger than, and well separated from, that responsible for the main-phase emission. All but one of the circular-ribbon flares can be well explained by a composite "dome-plate" quasi-separatrix layer (QSL). Only half of these show a magnetic null point, with its fan and spine embedded in the dome and plate, respectively. The dome-plate QSL, therefore, is a general and robust structure characterizing circular-ribbon flares.},
language = {en}
}
@article{BaerGrossmannHeidenreichetal.2019,
author = {B{\"a}r, Markus and Großmann, Robert and Heidenreich, Sebastian and Peruani, Fernando},
title = {Self-propelled rods},
series = {Annual review of condensed matter physics},
volume = {11},
journal = {Annual review of condensed matter physics},
publisher = {Annual Reviews},
address = {Palo Alto},
issn = {1947-5454},
doi = {10.1146/annurev-conmatphys-031119-050611},
pages = {441 -- 466},
year = {2019},
abstract = {A wide range of experimental systems including gliding, swarming and swimming bacteria, in vitro motility assays, and shaken granular media are commonly described as self-propelled rods. Large ensembles of those entities display a large variety of self-organized, collective phenomena, including the formation of moving polar clusters, polar and nematic dynamic bands, mobility-induced phase separation, topological defects, and mesoscale turbulence, among others. Here, we give a brief survey of experimental observations and review the theoretical description of self-propelled rods. Our focus is on the emergent pattern formation of ensembles of dry self-propelled rods governed by short-ranged, contact mediated interactions and their wet counterparts that are also subject to long-ranged hydrodynamic flows. Altogether, self-propelled rods provide an overarching theme covering many aspects of active matter containing well-explored limiting cases. Their collective behavior not only bridges the well-studied regimes of polar selfpropelled particles and active nematics, and includes active phase separation, but also reveals a rich variety of new patterns.},
language = {en}
}
@article{CaliendoTuebbicke2019,
author = {Caliendo, Marco and T{\"u}bbicke, Stefan},
title = {New evidence on long-term effects of start-up subsidies},
series = {Empirical economics},
volume = {59},
journal = {Empirical economics},
number = {4},
publisher = {Physica-Verlag},
address = {Heidelberg},
issn = {0377-7332},
doi = {10.1007/s00181-019-01701-9},
pages = {1605 -- 1631},
year = {2019},
abstract = {The German start-up subsidy (SUS) program for the unemployed has recently undergone a major makeover, altering its institutional setup, adding an additional layer of selection and leading to ambiguous predictions of the program's effectiveness. Using propensity score matching (PSM) as our main empirical approach, we provide estimates of long-term effects of the post-reform subsidy on individual employment prospects and labor market earnings up to 40 months after entering the program. Our results suggest large and persistent long-term effects of the subsidy on employment probabilities and net earned income. These effects are larger than what was estimated for the pre-reform program. Extensive sensitivity analyses within the standard PSM framework reveal that the results are robust to different choices regarding the implementation of the weighting procedure and also with respect to deviations from the conditional independence assumption. As a further assessment of the results' sensitivity, we go beyond the standard selection-on-observables approach and employ an instrumental variable setup using regional variation in the likelihood of receiving treatment. Here, we exploit the fact that the reform increased the discretionary power of local employment agencies in allocating active labor market policy funds, allowing us to obtain a measure of local preferences for SUS as the program of choice. The results based on this approach give rise to similar estimates. Thus, our results indicating that SUS are still an effective active labor market program after the reform do not appear to be driven by "hidden bias."},
language = {en}
}
@article{MinkMcHardyBresseletal.2019,
author = {Mink, Albert and McHardy, Christopher and Bressel, Lena and Rauh, Cornelia and Krause, Mathias J.},
title = {Radiative transfer lattice Boltzmann methods},
series = {Journal of quantitative spectroscopy \& radiative transfer},
volume = {243},
journal = {Journal of quantitative spectroscopy \& radiative transfer},
publisher = {Pergamon Press},
address = {Oxford},
issn = {0022-4073},
doi = {10.1016/j.jqsrt.2019.106810},
year = {2019},
abstract = {The numerical prediction of radiative transport is a challenging task due to the complexity of the radiative transport equation. We apply the lattice Boltzmann method (LBM), originally developed for fluid flow problems, to solve the radiative transport in volume. One model (meso RTLBM) is derived directly from a discretization of the radiative transport equation, yielding in a precise but numerical costly scheme. The second model (macro RTLBM) solves the Helmholtz equation, which is a proper approximation for highly scattering volumes. Both numerical algorithms are validated against Monte-Carlo data for a set of 35 optical parameters, which correspond to radiative transport ranging from ballistic to diffuse regimes. Together with a set of four benchmark simulations, the comprehensive validation concludes the overall quality and detects asymptotic trends for radiative transport LBM. Furthermore, an accuracy map is presented, which summarizes the error for all parameters. This graph allows to determine the validity range for both radiative transport LBM at a glance. Finally, comprehensive guidelines are formulated to facilitate the choice of the radiative transport LBM model.},
language = {en}
}
@article{VoethHerbstHaggenmuelleretal.2019,
author = {Voeth, Markus and Herbst, Uta and Haggenm{\"u}ller, Sandra and Weber, Marie-Christin},
title = {Wie verhandeln deutsche Manager?},
series = {Zeitschrift f{\"u}r Konfliktmanagement},
volume = {23},
journal = {Zeitschrift f{\"u}r Konfliktmanagement},
number = {1},
publisher = {Dr. Otto Schmidt},
address = {K{\"o}ln},
doi = {10.9785/zkm-2020-230107},
pages = {21 -- 24},
year = {2019},
language = {de}
}
@article{PereraBoeckmann2019,
author = {Perera, Upeksha and B{\"o}ckmann, Christine},
title = {Solutions of Direct and Inverse Even-Order Sturm-Liouville Problems Using Magnus Expansion},
series = {Mathematics},
volume = {7},
journal = {Mathematics},
number = {6},
publisher = {MDPI},
address = {Basel, Schweiz},
issn = {2227-7390},
doi = {10.3390/math7060544},
pages = {24},
year = {2019},
abstract = {In this paper Lie group method in combination with Magnus expansion is utilized to develop a universal method applicable to solving a Sturm-Liouville problem (SLP) of any order with arbitrary boundary conditions. It is shown that the method has ability to solve direct regular (and some singular) SLPs of even orders (tested for up to eight), with a mix of (including non-separable and finite singular endpoints) boundary conditions, accurately and efficiently. The present technique is successfully applied to overcome the difficulties in finding suitable sets of eigenvalues so that the inverse SLP problem can be effectively solved. The inverse SLP algorithm proposed by Barcilon (1974) is utilized in combination with the Magnus method so that a direct SLP of any (even) order and an inverse SLP of order two can be solved effectively.},
language = {en}
}
@article{PornsawadSapsakulBoeckmann2019,
author = {Pornsawad, Pornsarp and Sapsakul, Nantawan and B{\"o}ckmann, Christine},
title = {A modified asymptotical regularization of nonlinear ill-posed problems},
series = {Mathematics},
volume = {7},
journal = {Mathematics},
edition = {5},
publisher = {MDPI},
address = {Basel, Schweiz},
issn = {2227-7390},
doi = {10.3390/math7050419},
pages = {19},
year = {2019},
abstract = {In this paper, we investigate the continuous version of modified iterative Runge-Kutta-type methods for nonlinear inverse ill-posed problems proposed in a previous work. The convergence analysis is proved under the tangential cone condition, a modified discrepancy principle, i.e., the stopping time T is a solution of ∥𝐹(𝑥𝛿(𝑇))-𝑦𝛿∥=𝜏𝛿+ for some 𝛿+>𝛿, and an appropriate source condition. We yield the optimal rate of convergence.},
language = {en}
}
@article{KellerPinchoverPogorzelski2019,
author = {Keller, Matthias and Pinchover, Yehuda and Pogorzelski, Felix},
title = {Criticality theory for Schr{\"o}dinger operators on graphs},
series = {Journal of spectral theory},
volume = {10},
journal = {Journal of spectral theory},
number = {1},
publisher = {European Mathematical Society},
address = {Z{\"u}rich},
issn = {1664-039X},
doi = {10.4171/JST/286},
pages = {73 -- 114},
year = {2019},
abstract = {We study Schrodinger operators given by positive quadratic forms on infinite graphs. From there, we develop a criticality theory for Schrodinger operators on general weighted graphs.},
language = {en}
}
@article{SobczykSobelGeorgieva2019,
author = {Sobczyk, Artur and Sobel, Edward and Georgieva, Viktoria},
title = {Meso-Cenozoic cooling and exhumation history of the Orlica-snie(z) over dotnik Dome (Sudetes, NE Bohemian Massif, Central Europe)},
series = {Terra nova},
volume = {32},
journal = {Terra nova},
number = {2},
publisher = {Wiley},
address = {Hoboken},
issn = {0954-4879},
doi = {10.1111/ter.12449},
pages = {122 -- 133},
year = {2019},
abstract = {This study presents the first suite of apatite fission-track (AFT) ages from the SE part of the Western Sudetes. AFT cooling ages from the Orlica-snie(z) over dotnik Dome and the Upper Nysa Klodzka Graben range from Late Cretaceous (84 Ma) to Early Palaeocene-Middle Eocene (64-45 Ma). The first stage of basin evolution (similar to 100-90 Ma) was marked by the formation of a local extensional depocentre and disruption of the Mesozoic planation surface. Subsequent far-field convergence of European microplates resulted in Coniacian-Santonian (similar to 89-83 Ma) thrust faulting. AFT data from both metamorphic basement and Mesozoic sedimentary cover indicate homogenous Late Cretaceous burial of the entire Western Sudetes. Thermal history modeling suggests that the onset of cooling could be constrained between 89 and 63 Ma with a climax during the Palaeocene-Middle Eocene basin inversion phase.},
language = {en}
}
@article{LorenzMatthiasPieperetal.2019,
author = {Lorenz, Robert C. and Matthias, Katja and Pieper, Dawid and Wegewitz, Uta and Morche, Johannes and Nocon, Marc and Rissling, Olesja and Schirm, Jacqueline and Freitag, Simone and Jacobs, Anja},
title = {AMSTAR 2 overall confidence rating},
series = {Journal of clinical epidemiology : including pharmacoepidemiology reports},
volume = {119},
journal = {Journal of clinical epidemiology : including pharmacoepidemiology reports},
publisher = {Elsevier},
address = {New York},
issn = {0895-4356},
doi = {10.1016/j.jclinepi.2019.10.006},
pages = {142 -- 144},
year = {2019},
language = {en}
}
@article{WangOswaldGraeffetal.2019,
author = {Wang, Wei-shi and Oswald, Sascha and Gr{\"a}ff, Thomas and Lensing, Hermann Josef and Liu, Tie and Strasser, Daniel and Munz, Matthias},
title = {Impact of river reconstruction on groundwater flow during bank filtration assessed by transient three-dimensional modelling of flow and heat transport},
series = {Hydrogeology journal : official journal of the International Association of Hydrogeologists},
volume = {28},
journal = {Hydrogeology journal : official journal of the International Association of Hydrogeologists},
number = {2},
publisher = {Springer},
address = {Berlin ; Heidelberg [u.a.]},
issn = {1431-2174},
doi = {10.1007/s10040-019-02063-3},
pages = {723 -- 743},
year = {2019},
abstract = {Bank filtration (BF) is an established indirect water-treatment technology. The quality of water gained via BF depends on the subsurface capture zone, the mixing ratio (river water versus ambient groundwater), spatial and temporal distribution of subsurface travel times, and subsurface temperature patterns. Surface-water infiltration into the adjacent aquifer is determined by the local hydraulic gradient and riverbed permeability, which could be altered by natural clogging, scouring and artificial decolmation processes. The seasonal behaviour of a BF system in Germany, and its development during and about 6 months after decolmation (canal reconstruction), was observed with a long-term monitoring programme. To quantify the spatial and temporal variation in the BF system, a transient flow and heat transport model was implemented and two model scenarios, 'with' and 'without' canal reconstruction, were generated. Overall, the simulated water heads and temperatures matched those observed. Increased hydraulic connection between the canal and aquifer caused by the canal reconstruction led to an increase of similar to 23\% in the already high share of BF water abstracted by the nearby waterworks. Subsurface travel-time distribution substantially shifted towards shorter travel times. Flow paths with travel times <200 days increased by similar to 10\% and those with <300 days by 15\%. Generally, the periodic temperature signal, and the summer and winter temperature extrema, increased and penetrated deeper into the aquifer. The joint hydrological and thermal effects caused by the canal reconstruction might increase the potential of biodegradable compounds to further penetrate into the aquifer, also by potentially affecting the redox zonation in the aquifer.},
language = {en}
}
@article{OPUS4-59450,
title = {Migration, gender and religion},
series = {Populism and the crisis of democracy},
volume = {3},
journal = {Populism and the crisis of democracy},
editor = {Fitzi, Gregor and Mackert, J{\"u}rgen and Turner, Bryan S.},
publisher = {Routledge},
address = {London},
isbn = {978-11-3809-135-1},
pages = {xiv, 190},
year = {2019},
language = {en}
}
@article{KuehneMeisterMaassetal.2019,
author = {K{\"u}hne, Franziska and Meister, Ramona and Maass, Ulrike and Paunov, Tatjana and Weck, Florian},
title = {How reliable are therapeutic competence ratings?},
series = {Cognitive therapy and research},
volume = {44},
journal = {Cognitive therapy and research},
number = {2},
publisher = {Springer},
address = {New York},
issn = {0147-5916},
doi = {10.1007/s10608-019-10056-5},
pages = {241 -- 257},
year = {2019},
abstract = {Assessments of psychotherapeutic competencies play a crucial role in research and training. However, research on the reliability and validity of such assessments is sparse. This study aimed to provide an overview of the current evidence and to provide an average interrater reliability (IRR) of psychotherapeutic competence ratings. A systematic review was conducted, and 20 studies reported in 32 publications were collected. These 20 studies were included in a narrative synthesis, and 20 coefficients were entered into the meta-analysis. Most primary studies referred to cognitive-behavioral therapies and the treatment of depression, used the Cognitive Therapy Scale, based ratings on videos, and trained the raters. Our meta-analysis revealed a pooled ICC of 0.82, but at the same time severe heterogeneity. The evidence map highlighted a variety of variables related to competence assessments. Further aspects influencing the reliability of competence ratings and regarding the considerable heterogeneity are discussed in detail throughout the manuscript.},
language = {en}
}
@article{OPUS4-59133,
title = {Concepts and theory},
series = {Populism and the crisis of democracy},
volume = {1},
journal = {Populism and the crisis of democracy},
editor = {Fitzi, Gregor and Mackert, J{\"u}rgen and Turner, Bryan S.},
publisher = {Routledge},
address = {London},
isbn = {978-1-138-09136-8},
doi = {10.4324/9781315108070},
pages = {xiv, 177},
year = {2019},
abstract = {There is no threat to Western democracies today comparable to the rise of right-wing populism. While it has played an increasing role at least since the 1990s, only the social consequences of the global financial crises in 2008 have given it its break that led to UK's 'Brexit' and the election of Donald Trump as US President in 2016, as well as promoting what has been called left populism in countries that were hit the hardest by both the banking crisis and consequential neo-liberal austerity politics in the EU, such as Greece and Portugal. In 2017, the French Front National (FN) attracted many voters in the French Presidential elections; we have seen the radicalization of the Alternative f{\"u}r Deutschland (AfD) in Germany and the formation of centre-right government in Austria. Further, we have witnessed the consolidation of autocratic regimes, as in the EU member states Poland and Greece. All these manifestations of right-wing populism share a common feature: they attack or even compromise the core elements of democratic societies such as the separation of powers, protection of minorities, or the rule of law. Despite a broad debate on the re-emergence of 'populism' in the transition from the twentieth to the twenty-first century that has brought forth many interesting findings, a lack of sociological reasoning cannot be denied, as sociology itself withdrew from theorising populism decades ago and largely left the field to political sciences and history. In a sense, Populism and the Crisis of Democracy considers itself a contribution to begin filling this lacuna. Written in a direct and clear style, this set of volumes will be an invaluable reference for students and scholars in the field of political theory, political sociology and European Studies. This volume Concepts and Theory offers new and fresh perspectives on the debate on populism. Starting from complaints about the problems of conceptualising populism that in recent years have begun to revolve around themselves, the chapters offer a fundamental critique of the term and concept of populism, theoretically inspired typologies and descriptions of currently dominant concepts, and ways to elaborate on them. With regard to theory, the volume offers approaches that exceed the disciplinary horizon of political science that so far has dominated the debate. As sociological theory so far has been more or less absent in the debate on populism, only few efforts have been made to discuss populism more intensely within different theoretical contexts in order to explain its dynamics and processes. Thus, this volume offers critical views on the debate on populism from the perspectives of political economy and the analysis of critical historical events, the links of analyses of populism with social movement mobilisation, the significance of 'superfluous populations' in the rise of populism and an analysis of the exclusionary character of populism from the perspective of the theory of social closure.},
language = {en}
}
@article{HippKohlerLeumann2019,
author = {Hipp, Lena and Kohler, Ulrich and Leumann, Sandra},
title = {How to implement respondent-driven sampling in practice},
series = {Survey methods : insights from the field},
journal = {Survey methods : insights from the field},
publisher = {Swiss Found. for Research in Social Sciences},
address = {Lausanne},
issn = {2296-4754},
doi = {10.13094/SMIF-2019-00009},
pages = {1 -- 13},
year = {2019},
abstract = {This article draws on the experience from an ongoing research project employing respondent-driven sampling (RDS) to survey (illicit) 24-hour home care workers. We highlight issues around the preparatory work and the fielding of the survey to provide researchers with useful insights on how to implement RDS when surveying populations for which the method has not yet been used. We conclude the article with ethical considerations that occur when employing RDS.},
language = {en}
}
@article{Kohler2019,
author = {Kohler, Ulrich},
title = {Possible uses of nonprobability sampling for the social sciences},
series = {Survey methods : insights from the field},
journal = {Survey methods : insights from the field},
publisher = {Swiss Found. for Research in Social Sciences},
address = {Lausanne},
issn = {2296-4754},
doi = {10.13094/SMIF-2019-00014},
pages = {13},
year = {2019},
abstract = {This paper compares the usability of data stemming from probability sampling with data stemming from nonprobability sampling. It develops six research scenarios that differ in their research goals and assumptions about the data generating process. It is shown that inferences from data stemming from nonprobability sampling implies demanding assumptions on the homogeneity of the units being studied. Researchers who are not willing to pose these assumptions are generally better off using data from probability sampling, regardless of the amount of nonresponse. However, even in cases when data from probability sampling is clearly advertised, data stemming from nonprobability sampling may contribute to the cumulative scientific endeavour of pinpointing a plausible interval for the parameter of interest.},
language = {en}
}
@article{Petersen2019,
author = {Petersen, Jens},
title = {Drittschaden und Drittschadensliquidation},
series = {Jura : juristische Ausbildung},
volume = {42},
journal = {Jura : juristische Ausbildung},
number = {1},
publisher = {De Gruyter},
address = {Berlin},
issn = {0170-1452},
doi = {10.1515/jura-2019-2335},
pages = {17 -- 21},
year = {2019},
abstract = {Eine h{\"a}ufige Fehlerquelle in schuldrechtlichen Klausuren bilden Sch{\"a}den Dritter. Insbesondere auf die Drittschadens- liquidation wird oft viel zu schnell zugegriffen. F{\"u}r die richtige Anwendung in der Fallbearbeitung entscheidend ist das Verst{\"a}ndnis einiger gesetzlicher Basiswertungen.},
language = {de}
}
@article{SanderVinkHamann2019,
author = {Sander, Andreas Alexander Christoph and Vink, Jorick S. and Hamann, Wolf-Rainer},
title = {Driving classical Wolf-Rayet winds},
series = {Monthly notices of the Royal Astronomical Society},
volume = {491},
journal = {Monthly notices of the Royal Astronomical Society},
number = {3},
publisher = {Oxford Univ. Press},
address = {Oxford},
issn = {0035-8711},
doi = {10.1093/mnras/stz3064},
pages = {4406 -- 4425},
year = {2019},
abstract = {Classical Wolf-Rayet (cWR) stars are at a crucial evolutionary stage for constraining the fates of massive stars. The feedback of these hot, hydrogen-depleted stars dominates their surrounding by tremendous injections of ionizing radiation and kinetic energy. The strength of a Wolf-Rayet (WR) wind decides the eventual mass of its remnant, likely a massive black hole. However, despite their major influence and importance for gravitational wave detection statistics, WR winds are particularly poorly understood. In this paper, we introduce the first set of hydrodynamically consistent stellar atmosphere models for cWR stars of both the carbon (C) and the nitrogen (N) sequence, i.e. WC and WN stars, as a function of stellar luminosity-to-mass ratio (or Eddington Gamma) and metallicity. We demonstrate the inapplicability of the CAK wind theory for cWR stars and confirm earlier findings that their winds are launched at the (hot) iron (Fe) opacity peak. For log Z/Z(circle dot) > -2, Fe is also the main accelerator throughout the wind. Contrasting previous claims of a sharp lower mass-loss limit forWR stars, we obtain a smooth transition to optically thin winds. Furthermore, we find a strong dependence of the mass-loss rates on Eddington Gamma, both at solar and subsolar metallicity. Increases inWCcarbon and oxygen abundances turn out to slightly reduce the predicted mass-loss rates. Calculations at subsolar metallicities indicate that below the metallicity of the Small Magellanic Cloud, WR mass-loss rates decrease much faster than previously assumed, potentially allowing for high black hole masses even in the local Universe.},
language = {en}
}
@article{GehringDorschDoerfler2019,
author = {Gehring, Thomas and Dorsch, Christian and D{\"o}rfler, Thomas},
title = {Precedent and doctrine in organisational decision-making},
series = {Journal of international relations and development},
volume = {22},
journal = {Journal of international relations and development},
number = {1},
publisher = {Palgrave Macmillan},
address = {Basingstoke},
issn = {1581-1980},
doi = {10.1057/s41268-017-0101-5},
pages = {107 -- 135},
year = {2019},
abstract = {We examine how and under what conditions informal institutional constraints, such as precedent and doctrine, are likely to affect collective choice within international organisations even in the absence of powerful bureaucratic agents. With a particular focus on the United Nations Security Council, we first develop a theoretical account of why such informal constraints might affect collective decisions even of powerful and strategically behaving actors. We show that precedents provide focal points that allow adopting collective decisions in coordination situations despite diverging preferences. Reliance on previous cases creates tacitly evolving doctrine that may develop incrementally. Council decision-making is also likely to be facilitated by an institutional logic of escalation driven by institutional constraints following from the typically staged response to crisis situations. We explore the usefulness of our theoretical argument with evidence from the Council doctrine on terrorism that has evolved since 1985. The key decisions studied include the 1992 sanctions resolution against Libya and the 2001 Council response to the 9/11 attacks. We conclude that, even within intergovernmentally structured international organisations, member states do not operate on a clean slate, but in a highly institutionalised environment that shapes their opportunities for action.},
language = {en}
}
@article{KalinowskiEgertGronostajetal.2019,
author = {Kalinowski, Eva and Egert, Franziska and Gronostaj, Anna and Vock, Miriam},
title = {Professional development on fostering students' academic language proficiency across the curriculum},
series = {Teaching and teacher education},
volume = {88},
journal = {Teaching and teacher education},
publisher = {Elsevier Science},
address = {Amsterdam},
issn = {0742-051X},
doi = {10.1016/j.tate.2019.102971},
pages = {15},
year = {2019},
abstract = {This meta-analysis aggregates effects from 10 studies evaluating professional development interventions aimed at qualifying in-service teachers to support their students in mastering academic language skills while teaching their respective subject areas. The analysis of a subset of studies revealed a small non-significant weighted training effect on teachers' cognition (g' = 0.21, SE = 0.14). An effect aggregation including all studies (with 650 teachers) revealed a medium to large weighted overall effect on teachers' classroom practices (g' = 0.71, SE = 0.16). Methodological variables moderated the effect magnitude. Nevertheless, the results suggest professional development is beneficial for improving teachers' practice.},
language = {en}
}
@article{Albrecht2019,
author = {Albrecht, Anna Helena},
title = {Schweigen ist Silber, Reden ist Gold: Ausgleichs- und R{\"u}gem{\"o}glichkeiten bei belehrungsfehlerbedingtem Unterlassen einer g{\"u}nstigen Beschuldigteneinlassung},
series = {Zeitschrift f{\"u}r die gesamte Strafrechtswissenschaft},
volume = {131},
journal = {Zeitschrift f{\"u}r die gesamte Strafrechtswissenschaft},
number = {1},
publisher = {De Gruyter},
issn = {0084-5310},
doi = {10.1515/zstw-2019-0004},
pages = {97 -- 130},
year = {2019},
language = {de}
}
@article{DraisbachChristenNaumann2019,
author = {Draisbach, Uwe and Christen, Peter and Naumann, Felix},
title = {Transforming pairwise duplicates to entity clusters for high-quality duplicate detection},
series = {ACM Journal of Data and Information Quality},
volume = {12},
journal = {ACM Journal of Data and Information Quality},
number = {1},
publisher = {Association for Computing Machinery},
address = {New York},
issn = {1936-1955},
doi = {10.1145/3352591},
pages = {1 -- 30},
year = {2019},
abstract = {Duplicate detection algorithms produce clusters of database records, each cluster representing a single real-world entity. As most of these algorithms use pairwise comparisons, the resulting (transitive) clusters can be inconsistent: Not all records within a cluster are sufficiently similar to be classified as duplicate. Thus, one of many subsequent clustering algorithms can further improve the result.
We explain in detail, compare, and evaluate many of these algorithms and introduce three new clustering algorithms in the specific context of duplicate detection. Two of our three new algorithms use the structure of the input graph to create consistent clusters. Our third algorithm, and many other clustering algorithms, focus on the edge weights, instead. For evaluation, in contrast to related work, we experiment on true real-world datasets, and in addition examine in great detail various pair-selection strategies used in practice. While no overall winner emerges, we are able to identify best approaches for different situations. In scenarios with larger clusters, our proposed algorithm, Extended Maximum Clique Clustering (EMCC), and Markov Clustering show the best results. EMCC especially outperforms Markov Clustering regarding the precision of the results and additionally has the advantage that it can also be used in scenarios where edge weights are not available.},
language = {en}
}
@article{SchuefflerThimHaaseetal.2019,
author = {Sch{\"u}ffler, Arnulf and Thim, Christof and Haase, Jennifer and Gronau, Norbert and Kluge, Annette},
title = {Information processing in work environment 4.0 and the beneficial impact of intentional forgetting on change management},
series = {Zeitschrift f{\"u}r Arbeits- und Organisationspsychologie : german journal of work and organizational psychology},
volume = {64},
journal = {Zeitschrift f{\"u}r Arbeits- und Organisationspsychologie : german journal of work and organizational psychology},
number = {1},
publisher = {Hogrefe},
address = {G{\"o}ttingen},
issn = {0932-4089},
doi = {10.1026/0932-4089/a000307},
pages = {17 -- 29},
year = {2019},
abstract = {Industry 4.0, based on increasingly progressive digitalization, is a global phenomenon that affects every part of our work. The Internet of Things (IoT) is pushing the process of automation, culminating in the total autonomy of cyber-physical systems. This process is accompanied by a massive amount of data, information, and new dimensions of flexibility. As the amount of available data increases, their specific timeliness decreases. Mastering Industry 4.0 requires humans to master the new dimensions of information and to adapt to relevant ongoing changes. Intentional forgetting can make a difference in this context, as it discards nonprevailing information and actions in favor of prevailing ones. Intentional forgetting is the basis of any adaptation to change, as it ensures that nonprevailing memory items are not retrieved while prevailing ones are retained. This study presents a novel experimental approach that was introduced in a learning factory (the Research and Application Center Industry 4.0) to investigate intentional forgetting as it applies to production routines. In the first experiment (N = 18), in which the participants collectively performed 3046 routine related actions (t1 = 1402, t2 = 1644), the results showed that highly proceduralized actions were more difficult to forget than actions that were less well-learned. Additionally, we found that the quality of cues that trigger the execution of routine actions had no effect on the extent of intentional forgetting.},
language = {en}
}
@article{BiloLenzner2019,
author = {Bil{\`o}, Davide and Lenzner, Pascal},
title = {On the tree conjecture for the network creation game},
series = {Theory of computing systems},
volume = {64},
journal = {Theory of computing systems},
number = {3},
publisher = {Springer},
address = {New York},
issn = {1432-4350},
doi = {10.1007/s00224-019-09945-9},
pages = {422 -- 443},
year = {2019},
abstract = {Selfish Network Creation focuses on modeling real world networks from a game-theoretic point of view. One of the classic models by Fabrikant et al. (2003) is the network creation game, where agents correspond to nodes in a network which buy incident edges for the price of alpha per edge to minimize their total distance to all other nodes. The model is well-studied but still has intriguing open problems. The most famous conjectures state that the price of anarchy is constant for all alpha and that for alpha >= n all equilibrium networks are trees. We introduce a novel technique for analyzing stable networks for high edge-price alpha and employ it to improve on the best known bound for the latter conjecture. In particular we show that for alpha > 4n - 13 all equilibrium networks must be trees, which implies a constant price of anarchy for this range of alpha. Moreover, we also improve the constant upper bound on the price of anarchy for equilibrium trees.},
language = {en}
}