@article{LandmannBreilHuesteggeetal.2024,
  author    = {Landmann, Eva and Breil, Christina and Huestegge, Lynn and B{\"o}ckler, Anne},
  title     = {The semantics of gaze in person perception: a novel qualitative-quantitative approach},
  series = {Scientific Reports},
  volume    = {14},
  journal   = {Scientific Reports},
  number    = {1},
  issn      = {2045-2322},
  doi       = {10.1038/s41598-024-51331-0},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-361413},
  year      = {2024},
  abstract  = {Interpreting gaze behavior is essential in evaluating interaction partners, yet the 'semantics of gaze' in dynamic interactions are still poorly understood. We aimed to comprehensively investigate effects of gaze behavior patterns in different conversation contexts, using a two-step, qualitative-quantitative procedure. Participants watched video clips of single persons listening to autobiographic narrations by another (invisible) person. The listener's gaze behavior was manipulated in terms of gaze direction, frequency and direction of gaze shifts, and blink frequency; emotional context was manipulated through the valence of the narration (neutral/negative). In Experiment 1 (qualitative-exploratory), participants freely described which states and traits they attributed to the listener in each condition, allowing us to identify relevant aspects of person perception and to construct distinct rating scales that were implemented in Experiment 2 (quantitative-confirmatory). Results revealed systematic and differential meanings ascribed to the listener's gaze behavior. For example, rapid blinking and fast gaze shifts were rated more negatively (e.g., restless and unnatural) than slower gaze behavior; downward gaze was evaluated more favorably (e.g., empathetic) than other gaze aversion types, especially in the emotionally negative context. Overall, our study contributes to a more systematic understanding of flexible gaze semantics in social interaction.},
  language  = {en}
}
@article{DenkSchmidtSchurretal.2021,
  author    = {Denk, S. and Schmidt, S. and Schurr, Y. and Schwarz, G. and Schote, F. and Diefenbacher, M. and Armendariz, C. and Dejure, F. and Eilers, M. and Wiegering, Armin},
  title     = {CIP2A regulates MYC translation (via its 5′UTR) in colorectal cancer},
  series = {International Journal of Colorectal Disease},
  volume    = {36},
  journal   = {International Journal of Colorectal Disease},
  number    = {5},
  doi       = {10.1007/s00384-020-03772-y},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-280092},
  pages     = {911-918},
  year      = {2021},
  abstract  = {Background Deregulated expression of MYC is a driver of colorectal carcinogenesis, suggesting that decreasing MYC expression may have significant therapeutic value. CIP2A is an oncogenic factor that regulates MYC expression. CIP2A is overexpressed in colorectal cancer (CRC), and its expression levels are an independent marker for long-term outcome of CRC. Previous studies suggested that CIP2A controls MYC protein expression on a post-transcriptional level. Methods To determine the mechanism by which CIP2A regulates MYC in CRC, we dissected MYC translation and stability dependent on CIP2A in CRC cell lines. Results Knockdown of CIP2A reduced MYC protein levels without influencing MYC stability in CRC cell lines. Interfering with proteasomal degradation of MYC by usage of FBXW7-deficient cells or treatment with the proteasome inhibitor MG132 did not rescue the effect of CIP2A depletion on MYC protein levels. Whereas CIP2A knockdown had marginal influence on global protein synthesis, we could demonstrate that, by using different reporter constructs and cells expressing MYC mRNA with or without flanking UTR, CIP2A regulates MYC translation. This interaction is mainly conducted by the MYC 5′UTR. Conclusions Thus, instead of targeting MYC protein stability as reported for other tissue types before, CIP2A specifically regulates MYC mRNA translation in CRC but has only slight effects on global mRNA translation. In conclusion, we propose as novel mechanism that CIP2A regulates MYC on a translational level rather than affecting MYC protein stability in CRC.},
  language  = {en}
}
@article{ReddersenGuellmarTonndorfMartinietal.2021,
  author    = {Reddersen, Kirsten and G{\"u}llmar, Andr{\´e} and Tonndorf-Martini, Silke and Sigusch, Bernd W. and Ewald, Andrea and Dauben, Thomas J. and Martin, Karin and Wiegand, Cornelia},
  title     = {Critical parameters in cultivation of experimental biofilms using the example of Pseudomonas fluorescens},
  series = {Journal of Materials Science: Materials in Medicine},
  volume    = {32},
  journal   = {Journal of Materials Science: Materials in Medicine},
  number    = {9},
  issn      = {0957-4530},
  doi       = {10.1007/s10856-021-06568-w},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-309911},
  year      = {2021},
  abstract  = {Formation and treatment of biofilms present a great challenge for health care and industry. About 80\% of human infections are associated with biofilms including biomaterial centered infections, like infections of prosthetic heart valves, central venous catheters, or urinary catheters. Additionally, biofilms can cause food and drinking water contamination. Biofilm research focusses on application of experimental biofilm models to study initial adherence processes, to optimize physico-chemical properties of medical materials for reducing interactions between materials and bacteria, and to investigate biofilm treatment under controlled conditions. Exploring new antimicrobial strategies plays a key role in a variety of scientific disciplines, like medical material research, anti-infectious research, plant engineering, or wastewater treatment. Although a variety of biofilm models exist, there is a lack of standardization for experimental protocols, and designing experimental setups remains a challenge. In this study, a number of experimental parameters critical for material research have been tested that influence formation and stability of an experimental biofilm using the non-pathogenic model strain of Pseudomonas fluorescens. These parameters include experimental time frame, nutrient supply, inoculum concentration, static and dynamic cultivation conditions, material properties, and sample treatment during staining for visualization of the biofilm. It was shown, that all tested parameters critically influence the experimental biofilm formation process. The results obtained in this study shall support material researchers in designing experimental biofilm setups.},
  language  = {en}
}
@article{GlinzŠleichrtKytyřetal.2021,
  author    = {Glinz, Jonathan and Šleichrt, Jan and Kyt{\´y}ř, Daniel and Ayalur-Karunakaran, Santhosh and Zabler, Simon and Kastner, Johann and Senck, Sascha},
  title     = {Phase-contrast and dark-field imaging for the inspection of resin-rich areas and fiber orientation in non-crimp vacuum infusion carbon-fiber-reinforced polymers},
  series = {Journal of Materials Science},
  volume    = {56},
  journal   = {Journal of Materials Science},
  number    = {16},
  doi       = {10.1007/s10853-021-05907-0},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-351581},
  pages     = {9712-9727},
  year      = {2021},
  abstract  = {In this work, we present a multimodal approach to three-dimensionally quantify and visualize fiber orientation and resin-rich areas in carbon-fiber-reinforced polymers manufactured by vacuum infusion. Three complementary image modalities were acquired by Talbot-Lau grating interferometer (TLGI) X-ray microcomputed tomography (XCT). Compared to absorption contrast (AC), TLGI-XCT provides enhanced contrast between polymer matrix and carbon fibers at lower spatial resolutions in the form of differential phase contrast (DPC) and dark-field contrast (DFC). Consequently, relatively thin layers of resin, effectively indiscernible from image noise in AC data, are distinguishable. In addition to the assessment of fiber orientation, the combination of DPC and DFC facilitates the quantification of resin-rich areas, e.g., in gaps between fiber layers or at binder yarn collimation sites. We found that resin-rich areas between fiber layers are predominantly developed in regions characterized by a pronounced curvature. In contrast, in-layer resin-rich areas are mainly caused by the collimation of fibers by binder yarn. Furthermore, void volume around two adjacent 90°-oriented fiber layers is increased by roughly 20\% compared to a random distribution over the whole specimen.},
  language  = {en}
}
@article{GreefrathSillerKlocketal.2022,
  author    = {Greefrath, Gilbert and Siller, Hans-Stefan and Klock, Heiner and Wess, Raphael},
  title     = {Pre-service secondary teachers' pedagogical content knowledge for the teaching of mathematical modelling},
  series = {Educational Studies in Mathematics},
  volume    = {109},
  journal   = {Educational Studies in Mathematics},
  number    = {2},
  issn      = {0013-1954},
  doi       = {10.1007/s10649-021-10038-z},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-308259},
  pages     = {383-407},
  year      = {2022},
  abstract  = {The article deals with the pedagogical content knowledge of mathematical modelling as part of the professional competence of pre-service teachers. With the help of a test developed for this purpose from a conceptual model, we examine whether this pedagogical content knowledge can be promoted in its different facets—especially knowledge about modelling tasks and about interventions—by suitable university seminars. For this purpose, the test was administered to three groups in a seminar for the teaching of mathematical modelling: (1) to those respondents who created their own modelling tasks for use with students, (2) to those trained to intervene in mathematical modelling processes, and (3) participating students who are not required to address mathematical modelling. The findings of the study—based on variance analysis—indicate that certain facets (knowledge of modelling tasks, modelling processes, and interventions) have increased significantly in both experimental groups but to varying degrees. By contrast, pre-service teachers in the control group demonstrated no significant change to their level of pedagogical content knowledge.},
  language  = {en}
}
@article{KanzowLechner2021,
  author    = {Kanzow, Christian and Lechner, Theresa},
  title     = {Globalized inexact proximal Newton-type methods for nonconvex composite functions},
  series = {Computational Optimization and Applications},
  volume    = {78},
  journal   = {Computational Optimization and Applications},
  number    = {2},
  doi       = {10.1007/s10589-020-00243-6},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-283715},
  pages     = {377-410},
  year      = {2021},
  abstract  = {Optimization problems with composite functions consist of an objective function which is the sum of a smooth and a (convex) nonsmooth term. This particular structure is exploited by the class of proximal gradient methods and some of their generalizations like proximal Newton and quasi-Newton methods. The current literature on these classes of methods almost exclusively considers the case where also the smooth term is convex. Here we present a globalized proximal Newton-type method which allows the smooth term to be nonconvex. The method is shown to have nice global and local convergence properties, and some numerical results indicate that this method is very promising also from a practical point of view.},
  language  = {en}
}
@article{KosmalaGruschwitzVeldhoenetal.2020,
  author    = {Kosmala, Aleksander and Gruschwitz, Philipp and Veldhoen, Simon and Weng, Andreas Max and Krauss, Bernhard and Bley, Thorsten Alexander and Petritsch, Bernhard},
  title     = {Dual-energy CT angiography in suspected pulmonary embolism: influence of injection protocols on image quality and perfused blood volume},
  series = {The International Journal of Cardiovascular Imaging},
  volume    = {36},
  journal   = {The International Journal of Cardiovascular Imaging},
  number    = {10},
  issn      = {1569-5794},
  doi       = {10.1007/s10554-020-01911-8},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-314739},
  pages     = {2051-2059},
  year      = {2020},
  abstract  = {Abstract To compare intravenous contrast material (CM) injection protocols for dual-energy CT pulmonary angiography (CTPA) in patients with suspected acute pulmonary embolism with regard to image quality and pulmonary perfused blood volume (PBV) values. A total of 198 studies performed with four CM injection protocols varying in CM volume and iodine delivery rates (IDR) were retrospectively included: (A) 60 ml at 5 ml/s (IDR = 1.75gI/s), (B) 50 ml at 5 ml/s (IDR = 1.75gI/s), (C) 50 ml at 4 ml/s (IDR = 1.40gI/s), (D) 40 ml at 3 ml/s (IDR = 1.05gI/s). Image quality and PBV values at different resolution settings were compared. Pulmonary arterial tract attenuation was highest for protocol A (397 ± 110 HU; p vs. B = 0.13; vs. C = 0.02; vs. D < 0.001). CTPA image quality of protocol A was rated superior compared to protocols B and D by reader 1 (p = 0.01; < 0.001), and superior to protocols B, C and D by reader 2 (p < 0.001; 0.02; < 0.001). Otherwise, there were no significant differences in CTPA quality ratings. Subjective iodine map ratings did not vary significantly between protocols A, B, and C. Both readers rated protocol D inferior to all other protocols (p < 0.05). PBV values did not vary significantly between protocols A and B at resolution settings of 1, 4 and 10 (p = 0.10; 0.10; 0.09), while otherwise PBV values displayed a decreasing trend from protocol A to D (p < 0.05). Higher CM volume and IDR are associated with superior CTPA and iodine map quality and higher absolute PBV values.},
  language  = {en}
}
@article{MerzenichBaakenSchmidtetal.2022,
  author    = {Merzenich, Hiltrud and Baaken, Dan and Schmidt, Marcus and Bekes, Inga and Schwentner, Lukas and Janni, Wolfgang and Woeckel, Achim and Bartkowiak, Detlef and Wiegel, Thomas and Blettner, Maria and Wollschl{\"a}ger, Daniel and Schmidberger, Heinz},
  title     = {Cardiac late effects after modern 3D-conformal radiotherapy in breast cancer patients: a retrospective cohort study in Germany (ESCaRa)},
  series = {Breast Cancer Research and Treatment},
  volume    = {191},
  journal   = {Breast Cancer Research and Treatment},
  number    = {1},
  issn      = {0167-6806},
  doi       = {10.1007/s10549-021-06412-3},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-308606},
  pages     = {147-157},
  year      = {2022},
  abstract  = {Purpose Radiotherapy (RT) was identified as a risk factor for long-term cardiac effects in breast cancer patients treated until the 1990s. However, modern techniques reduce radiation exposure of the heart, but some exposure remains unavoidable. In a retrospective cohort study, we investigated cardiac mortality and morbidity of breast cancer survivors treated with recent RT in Germany. Methods A total of 11,982 breast cancer patients treated between 1998 and 2008 were included. A mortality follow-up was conducted until 06/2018. In order to assess cardiac morbidity occurring after breast cancer treatment, a questionnaire was sent out in 2014 and 2019. The effect of breast cancer laterality on cardiac mortality and morbidity was investigated as a proxy for radiation exposure. We used Cox Proportional Hazards regression analysis, taking potential confounders into account. Results After a median follow-up time of 11.1 years, there was no significant association of tumor laterality with cardiac mortality in irradiated patients (hazard ratio (HR) for left-sided versus right-sided tumor 1.09; 95\% confidence interval (CI) 0.85-1.41). Furthermore, tumor laterality was not identified as a significant risk factor for cardiac morbidity (HR = 1.05; 95\%CI 0.88-1.25). Conclusions Even though RT for left-sided breast cancer on average incurs higher radiation dose to the heart than RT for right-sided tumors, we found no evidence that laterality is a strong risk factor for cardiac disease after contemporary RT. However, larger sample sizes, longer follow-up, detailed information on individual risk factors and heart dose are needed to assess clinically manifest late effects of current cancer therapy.},
  language  = {en}
}
@article{LoosKraussLyonsetal.2021,
  author    = {Loos, Jacqueline and Krauss, Jochen and Lyons, Ashley and F{\"o}st, Stephanie and Ohlendorf, Constanze and Racky, Severin and R{\"o}der, Marina and Hudel, Lennart and Herfert, Volker and Tscharntke, Teja},
  title     = {Local and landscape responses of biodiversity in calcareous grasslands},
  series = {Biodiversity and Conservation},
  volume    = {30},
  journal   = {Biodiversity and Conservation},
  number    = {8-9},
  issn      = {0960-3115},
  doi       = {10.1007/s10531-021-02201-y},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-308595},
  pages     = {2415-2432},
  year      = {2021},
  abstract  = {Across Europe, calcareous grasslands become increasingly fragmented and their quality deteriorates through abandonment and land use intensification, both affecting biodiversity. Here, we investigated local and landscape effects on diversity patterns of several taxonomic groups in a landscape of highly fragmented calcareous grassland remnants. We surveyed 31 grassland fragments near G{\"o}ttingen, Germany, in spring and summer 2017 for vascular plants, butterflies and birds, with sampling effort adapted to fragment area. Through regression modelling, we tested relationships between species richness and fragment size (from 314 to 51,395 m\(^2\)), successional stage, habitat connectivity and the per cent cover of arable land in the landscape at several radii. We detected 283 plant species, 53 butterfly species and 70 bird species. Of these, 59 plant species, 19 butterfly species and 9 bird species were grassland specialists. Larger fragments supported twice the species richness of plants than small ones, and hosted more species of butterflies, but not of birds. Larger grassland fragments contained more grassland specialist plants, but not butterfly or bird specialists. Increasing amounts of arable land in the landscape from 20 to 90\% was related to the loss of a third of species of plants, and less so, of butterflies, but not of birds. Per cent cover of arable land negatively correlated to richness of grassland specialist plants and butterflies, but positively to grassland specialist birds. We found no effect by successional stages and habitat connectivity. Our multi-taxa approach highlights the need for conservation management at the local scale, complemented by measures at the landscape scale.},
  language  = {en}
}
@article{HaufNiedingSeger2020,
  author    = {Hauf, Juliane E. K. and Nieding, Gerhild and Seger, Benedikt T.},
  title     = {The development of dynamic perceptual simulations during sentence comprehension},
  series = {Cognitive Processing},
  volume    = {21},
  journal   = {Cognitive Processing},
  number    = {2},
  doi       = {10.1007/s10339-020-00959-7},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-283665},
  pages     = {197-208},
  year      = {2020},
  abstract  = {Based on an embodied account of language comprehension, this study investigated the dynamic characteristics of children and adults' perceptual simulations during sentence comprehension, using a novel paradigm to assess the perceptual simulation of objects moving up and down a vertical axis. The participants comprised adults (N = 40) and 6-, 8-, and 10-year-old children (N = 116). After listening in experimental trials to sentences implying that objects moved upward or downward, the participants were shown pictures and had to decide as quickly as possible whether the objects depicted had been mentioned in the sentences. The target pictures moved either up or down and then stopped in the middle of the screen. All age groups' reaction times were found to be shorter when the objects moved in the directions that the sentences implied. Age exerted no developmental effect on reaction times. The findings suggest that dynamic perceptual simulations are fundamental to language comprehension in text recipients aged 6 and older.},
  language  = {en}
}
@article{DippellEspositoWaldmann2022,
  author    = {Dippell, Marvin and Esposito, Chiara and Waldmann, Stefan},
  title     = {Deformation and Hochschild cohomology of coisotropic algebras},
  series = {Annali di Matematica Pura ed Applicata},
  volume    = {201},
  journal   = {Annali di Matematica Pura ed Applicata},
  number    = {3},
  doi       = {10.1007/s10231-021-01158-7},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-329069},
  pages     = {1295-1323},
  year      = {2022},
  abstract  = {Coisotropic algebras consist of triples of algebras for which a reduction can be defined and unify in a very algebraic fashion coisotropic reduction in several settings. In this paper, we study the theory of (formal) deformation of coisotropic algebras showing that deformations are governed by suitable coisotropic DGLAs. We define a deformation functor and prove that it commutes with reduction. Finally, we study the obstructions to existence and uniqueness of coisotropic algebras and present some geometric examples.},
  language  = {en}
}
@article{EckertBohnSpaethe2022,
  author    = {Eckert, Johanna and Bohn, Manuel and Spaethe, Johannes},
  title     = {Does quantity matter to a stingless bee?},
  series = {Animal Cognition},
  volume    = {25},
  journal   = {Animal Cognition},
  number    = {3},
  issn      = {1435-9448},
  doi       = {10.1007/s10071-021-01581-6},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-307696},
  pages     = {617-629},
  year      = {2022},
  abstract  = {Quantitative information is omnipresent in the world and a wide range of species has been shown to use quantities to optimize their decisions. While most studies have focused on vertebrates, a growing body of research demonstrates that also insects such as honeybees possess basic quantitative abilities that might aid them in finding profitable flower patches. However, it remains unclear if for insects, quantity is a salient feature relative to other stimulus dimensions, or if it is only used as a "last resort" strategy in case other stimulus dimensions are inconclusive. Here, we tested the stingless bee Trigona fuscipennis, a species representative of a vastly understudied group of tropical pollinators, in a quantity discrimination task. In four experiments, we trained wild, free-flying bees on stimuli that depicted either one or four elements. Subsequently, bees were confronted with a choice between stimuli that matched the training stimulus either in terms of quantity or another stimulus dimension. We found that bees were able to discriminate between the two quantities, but performance differed depending on which quantity was rewarded. Furthermore, quantity was more salient than was shape. However, quantity did not measurably influence the bees' decisions when contrasted with color or surface area. Our results demonstrate that just as honeybees, small-brained stingless bees also possess basic quantitative abilities. Moreover, invertebrate pollinators seem to utilize quantity not only as "last resort" but as a salient stimulus dimension. Our study contributes to the growing body of knowledge on quantitative cognition in invertebrate species and adds to our understanding of the evolution of numerical cognition.},
  language  = {en}
}
@article{OhlmannBoemickeBehnischetal.2022,
  author    = {Ohlmann, Brigitte and B{\"o}micke, Wolfgang and Behnisch, Rouven and Rammelsberg, Peter and Schmitter, Marc},
  title     = {Variability of sleep bruxism — findings from consecutive nights of monitoring},
  series = {Clinical Oral Investigations},
  volume    = {26},
  journal   = {Clinical Oral Investigations},
  number    = {4},
  issn      = {1436-3771},
  doi       = {10.1007/s00784-021-04314-8},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-307645},
  pages     = {3459-3466},
  year      = {2022},
  abstract  = {Objectives To determine sleep bruxism (SB) behavior during five consecutive nights and to identify correlations between SB episodes per hour (SB index) and sleep-time masseter-muscle activity (sMMA). Material and methods Thirty-one participants were included in the study. Of these, 10 were classified as sleep bruxers (group SB-1) and nine as non-sleep bruxers (group non-SB). The bruxism status of these 19 patients was identified by means of questionnaires, an assessment of clinical symptoms, and electromyographic/electrocardiographic data (Bruxoff® device). The remaining 12 participants were also identified as bruxers, but based exclusively on data from the Bruxoff device (group SB-2). Data analysis included descriptive statistics and Spearman's correlation to assess the relationship between the SB index and sMMA. Results Participants in group SB-1 showed an overall mean SB index of 3.1 ± 1.6 and a mean total sMMA per night of 62.9 ± 38.3. Participants in group SB-2 had an overall mean SB index of 2.7 ± 1.5 and a mean total sMMA of 56.0 ± 29.3. In the non-SB group, participants showed an overall mean SB index of 0.8 ± 0.5 and a mean total sMMA of 56.8 ± 30.3. Spearman's correlation yielded values of - 0.27 to 0.71 for the correlation between sMMA and SB index. Conclusions The data revealed variable SB activity and the absence of a reliable correlation between sMMA and the SB index. Clinical relevance The high variation in SB activity and lack of correlation between sMMA and the SB index should be considered when diagnosing SB. Trial registration Clinical Trials [NIH], clinical trial no. NCT03039985.},
  language  = {en}
}
@article{RighessoTerekhovGoetzetal.2021,
  author    = {Righesso, L. A. R. and Terekhov, M. and G{\"o}tz, H. and Ackermann, M. and Emrich, T. and Schreiber, L. M. and M{\"u}ller, W. E. G. and Jung, J. and Rojas, J. P. and Al-Nawas, B.},
  title     = {Dynamic contrast-enhanced magnetic resonance imaging for monitoring neovascularization during bone regeneration — a randomized in vivo study in rabbits},
  series = {Clinical Oral Investigations},
  volume    = {25},
  journal   = {Clinical Oral Investigations},
  number    = {10},
  issn      = {1432-6981},
  doi       = {10.1007/s00784-021-03889-6},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-307614},
  pages     = {5843-5854},
  year      = {2021},
  abstract  = {Objectives Micro-computed tomography (μ-CT) and histology, the current gold standard methods for assessing the formation of new bone and blood vessels, are invasive and/or destructive. With that in mind, a more conservative tool, dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), was tested for its accuracy and reproducibility in monitoring neovascularization during bone regeneration. Additionally, the suitability of blood perfusion as a surrogate of the efficacy of osteoplastic materials was evaluated. Materials and methods Sixteen rabbits were used and equally divided into four groups, according to the time of euthanasia (2, 3, 4, and 6 weeks after surgery). The animals were submitted to two 8-mm craniotomies that were filled with blood or autogenous bone. Neovascularization was assessed in vivo through DCE-MRI, and bone regeneration, ex vivo, through μ-CT and histology. Results The defects could be consistently identified, and their blood perfusion measured through DCE-MRI, there being statistically significant differences within the blood clot group between 3 and 6 weeks (p = 0.029), and between the former and autogenous bone at six weeks (p = 0.017). Nonetheless, no significant correlations between DCE-MRI findings on neovascularization and μ-CT (r =-0.101, 95\% CI [-0.445; 0.268]) or histology (r = 0.305, 95\% CI [-0.133; 0.644]) findings on bone regeneration were observed. Conclusions These results support the hypothesis that DCE-MRI can be used to monitor neovascularization but contradict the premise that it could predict bone regeneration as well.},
  language  = {en}
}
@article{JockelSchneiderSchlagenhaufPetsosetal.2021,
  author    = {Jockel-Schneider, Yvonne and Schlagenhauf, Ulrich and Petsos, Hari and R{\"u}ttermann, Stefan and Schmidt, Jana and Ziebolz, Dirk and Wehner, Christian and Laky, Markus and Rott, Thea and Noack, Michael and Noack, Barbara and Lorenz, Katrin},
  title     = {Impact of 0.1\% octenidine mouthwash on plaque re-growth in healthy adults: a multi-center phase 3 randomized clinical trial},
  series = {Clinical Oral Investigations},
  volume    = {25},
  journal   = {Clinical Oral Investigations},
  number    = {7},
  issn      = {1432-6981},
  doi       = {10.1007/s00784-021-03781-3},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-307629},
  pages     = {4681-4689},
  year      = {2021},
  abstract  = {Objectives To investigate plaque inhibition of 0.1\% octenidine mouthwash (OCT) vs. placebo over 5 days in the absence of mechanical plaque control. Materials and methods For this randomized, placebo-controlled, double-blind, parallel group, multi-center phase 3 study, 201 healthy adults were recruited. After baseline recording of plaque index (PI) and gingival index (GI), collection of salivary samples, and dental prophylaxis, subjects were randomly assigned to OCT or placebo mouthwash in a 3:1 ratio. Rinsing was performed twice daily for 30 s. Colony forming units in saliva were determined before and after the first rinse. At day 5, PI, GI, and tooth discoloration index (DI) were assessed. Non-parametric van Elteren tests were applied with a significance level of p < 0.05. Results Treatment with OCT inhibited plaque formation more than treatment with placebo (PI: 0.36 vs. 1.29; p < 0.0001). OCT reduced GI (0.04 vs. placebo 0.00; p = 0.003) and salivary bacterial counts (2.73 vs. placebo 0.24 lgCFU/ml; p < 0.0001). Tooth discoloration was slightly higher under OCT (DI: 0.25 vs. placebo 0.00; p = 0.0011). Mild tongue staining and dysgeusia occurred. Conclusions OCT 0.1\% mouthwash inhibits plaque formation over 5 days. It therefore can be recommended when regular oral hygiene is temporarily compromised. Clinical relevance When individual plaque control is compromised, rinsing with octenidine mouthwash is recommended to maintain healthy oral conditions while side effects are limited.},
  language  = {en}
}
@article{CampanaCiaramellaBorzi2021,
  author    = {Campana, Francesca Cal{\`a} and Ciaramella, Gabriele and Borz{\`i}, Alfio},
  title     = {Nash Equilibria and Bargaining Solutions of Differential Bilinear Games},
  series = {Dynamic Games and Applications},
  volume    = {11},
  journal   = {Dynamic Games and Applications},
  number    = {1},
  doi       = {10.1007/s13235-020-00351-2},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-283897},
  pages     = {1-28},
  year      = {2021},
  abstract  = {This paper is devoted to a theoretical and numerical investigation of Nash equilibria and Nash bargaining problems governed by bilinear (input-affine) differential models. These systems with a bilinear state-control structure arise in many applications in, e.g., biology, economics, physics, where competition between different species, agents, and forces needs to be modelled. For this purpose, the concept of Nash equilibria (NE) appears appropriate, and the building blocks of the resulting differential Nash games are different control functions associated with different players that pursue different non-cooperative objectives. In this framework, existence of Nash equilibria is proved and computed with a semi-smooth Newton scheme combined with a relaxation method. Further, a related Nash bargaining (NB) problem is discussed. This aims at determining an improvement of all players' objectives with respect to the Nash equilibria. Results of numerical experiments successfully demonstrate the effectiveness of the proposed NE and NB computational framework.},
  language  = {en}
}
@article{RolfesRuckDavidetal.2022,
  author    = {Rolfes, Leoni and Ruck, Tobias and David, Christina and Mencl, Stine and Bock, Stefanie and Schmidt, Mariella and Strecker, Jan-Kolja and Pfeuffer, Steffen and Mecklenbeck, Andreas-Schulte and Gross, Catharina and Gliem, Michael and Minnerup, Jens and Schuhmann, Michael K. and Kleinschnitz, Christoph and Meuth, Sven G.},
  title     = {Natural Killer Cells Are Present in Rag1\(^{-/-}\) Mice and Promote Tissue Damage During the Acute Phase of Ischemic Stroke},
  series = {Translational Stroke Research},
  volume    = {13},
  journal   = {Translational Stroke Research},
  number    = {1},
  issn      = {1868-4483},
  doi       = {10.1007/s12975-021-00923-3},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-308924},
  pages     = {197-211},
  year      = {2022},
  abstract  = {Rag1\(^{-/-}\) mice, lacking functional B and T cells, have been extensively used as an adoptive transfer model to evaluate neuroinflammation in stroke research. However, it remains unknown whether natural killer (NK) cell development and functions are altered in Rag1\(^{-/-}\) mice as well. This connection has been rarely discussed in previous studies but might have important implications for data interpretation. In contrast, the NOD-Rag1\(^{null}\)IL2rg\(^{null}\) (NRG) mouse model is devoid of NK cells and might therefore eliminate this potential shortcoming. Here, we compare immune-cell frequencies as well as phenotype and effector functions of NK cells in Rag1\(^{-/-}\) and wildtype (WT) mice using flow cytometry and functional in vitro assays. Further, we investigate the effect of Rag1\(^{-/-}\) NK cells in the transient middle cerebral artery occlusion (tMCAO) model using antibody-mediated depletion of NK cells and adoptive transfer to NRG mice in vivo. NK cells in Rag1\(^{-/-}\) were comparable in number and function to those in WT mice. Rag1\(^{-/-}\) mice treated with an anti-NK1.1 antibody developed significantly smaller infarctions and improved behavioral scores. Correspondingly, NRG mice supplemented with NK cells were more susceptible to tMCAO, developing infarctions and neurological deficits similar to Rag1-/- controls. Our results indicate that NK cells from Rag1-/- mice are fully functional and should therefore be considered in the interpretation of immune-cell transfer models in experimental stroke. Fortunately, we identified the NRG mice, as a potentially better-suited transfer model to characterize individual cell subset-mediated neuroinflammation in stroke.},
  language  = {en}
}
@article{PotreckMutkeWeylandetal.2021,
  author    = {Potreck, Arne and Mutke, Matthias A. and Weyland, Charlotte S. and Pfaff, Johannes A. R. and Ringleb, Peter A. and Mundiyanapurath, Sibu and M{\"o}hlenbruch, Markus A. and Heiland, Sabine and Pham, Mirko and Bendszus, Martin and Hoffmann, Angelika},
  title     = {Combined Perfusion and Permeability Imaging Reveals Different Pathophysiologic Tissue Responses After Successful Thrombectomy},
  series = {Translational Stroke Research},
  volume    = {12},
  journal   = {Translational Stroke Research},
  number    = {5},
  issn      = {1868-4483},
  doi       = {10.1007/s12975-020-00885-y},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-308946},
  pages     = {799-807},
  year      = {2021},
  abstract  = {Despite successful recanalization of large-vessel occlusions in acute ischemic stroke, individual patients profit to a varying degree. Dynamic susceptibility-weighted perfusion and dynamic T1-weighted contrast-enhanced blood-brain barrier permeability imaging may help to determine secondary stroke injury and predict clinical outcome. We prospectively performed perfusion and permeability imaging in 38 patients within 24 h after successful mechanical thrombectomy of an occlusion of the middle cerebral artery M1 segment. Perfusion alterations were evaluated on cerebral blood flow maps, blood-brain barrier disruption (BBBD) visually and quantitatively on ktrans maps and hemorrhagic transformation on susceptibility-weighted images. Visual BBBD within the DWI lesion corresponded to a median ktrans elevation (IQR) of 0.77 (0.41-1.4) min-1 and was found in all 7 cases of hypoperfusion (100\%), in 10 of 16 cases of hyperperfusion (63\%), and in only three of 13 cases with unaffected perfusion (23\%). BBBD was significantly associated with hemorrhagic transformation (p < 0.001). While BBBD alone was not a predictor of clinical outcome at 3 months (positive predictive value (PPV) = 0.8 [0.56-0.94]), hypoperfusion occurred more often in patients with unfavorable clinical outcome (PPV = 0.43 [0.10-0.82]) compared to hyperperfusion (PPV = 0.93 [0.68-1.0]) or unaffected perfusion (PPV = 1.0 [0.75-1.0]). We show that combined perfusion and permeability imaging reveals distinct infarct signatures after recanalization, indicating the severity of prior ischemic damage. It assists in predicting clinical outcome and may identify patients at risk of stroke progression.},
  language  = {en}
}
@article{LiPamporakiFliedneretal.2021,
  author    = {Li, Minghao and Pamporaki, Christina and Fliedner, Stephanie M. J. and Timmers, Henri J. L. M. and N{\"o}lting, Svenja and Beuschlein, Felix and Prejbisz, Aleksander and Remde, Hanna and Robledo, Mercedes and Bornstein, Stefan R. and Lenders, Jacques W. M. and Eisenhofer, Graeme and Bechmann, Nicole},
  title     = {Metastatic pheochromocytoma and paraganglioma: signs and symptoms related to catecholamine secretion},
  series = {Discover Oncology},
  volume    = {12},
  journal   = {Discover Oncology},
  issn      = {2730-6011},
  doi       = {10.1007/s12672-021-00404-x},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-309901},
  year      = {2021},
  abstract  = {Background The presence or future development of metastatic pheochromocytomas or paragangliomas (mPPGLs) can be difficult to diagnose or predict at initial presentation. Since production of catecholamines from mPPGLs is different from non-metastatic tumors (non-mPPGLs), this study aimed to clarify whether presenting catecholamine-related signs and symptoms (cSS) might also differ. Methods The study included 249 patients, 43 with mPPGL and 206 with non-mPPGL. Clinical data at the time of biochemical diagnosis (i.e. at entry into the study) were used to generate a cumulative score of cSS for each patient. Results Patients with mPPGL were significantly younger (43.3 ± 14 vs. 48.9 ± 16.1 years) and included a lower proportion of females (39.5\% vs. 60.7\%) than patients with non-mPPGLs. Frequencies of signs and symptoms did not differ between the two groups. Patients with mPPGLs had lower (P < 0.001) urinary excretion of epinephrine (3.5 (IQR, 1.9—6.5) µg/day) than those with non-mPPGLs (19.1 (IQR, 4.3—70.2) µg/day). There was no difference in urinary excretion of norepinephrine. In patients with mPPGLs a high cSS score was associated with high urinary excretion of norepinephrine and normetanephrine. In contrast, in patients with non-mPPGLs, a high cSS was associated with high urinary excretion of epinephrine and metanephrine. Conclusion Although presenting signs and symptoms were associated with production of norepinephrine in patients with mPPGLs and of epinephrine in patients with non-mPPGLs, there were no differences in signs and symptoms between the two groups. Therefore, consideration of signs and symptoms does not appear helpful for distinguishing patients with and without mPPGLs.},
  language  = {en}
}
@article{FleuchausBlumWildeetal.2021,
  author    = {Fleuchaus, Paul and Blum, Philipp and Wilde, Martina and Terhorst, Birgit and Butscher, Christoph},
  title     = {Retrospective evaluation of landslide susceptibility maps and review of validation practice},
  series = {Environmental Earth Sciences},
  volume    = {80},
  journal   = {Environmental Earth Sciences},
  issn      = {1866-6280},
  doi       = {10.1007/s12665-021-09770-9},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-308911},
  year      = {2021},
  abstract  = {Despite the widespread application of landslide susceptibility analyses, there is hardly any information about whether or not the occurrence of recent landslide events was correctly predicted by the relevant susceptibility maps. Hence, the objective of this study is to evaluate four landslide susceptibility maps retrospectively in a landslide-prone area of the Swabian Alb (Germany). The predictive performance of each susceptibility map is evaluated based on a landslide event triggered by heavy rainfalls in the year 2013. The retrospective evaluation revealed significant variations in the predictive accuracy of the analyzed studies. Both completely erroneous as well as very precise predictions were observed. These differences are less attributed to the applied statistical method and more to the quality and comprehensiveness of the used input data. Furthermore, a literature review of 50 peer-reviewed articles showed that most landslide susceptibility analyses achieve very high validation scores. 73\% of the analyzed studies achieved an area under curve (AUC) value of at least 80\%. These high validation scores, however, do not reflect the high uncertainty in statistical susceptibility analysis. Thus, the quality assessment of landslide susceptibility maps should not only comprise an index-based, quantitative validation, but also an additional qualitative plausibility check considering local geomorphological characteristics and local landslide mechanisms. Finally, the proposed retrospective evaluation approach cannot only help to assess the quality of susceptibility maps and demonstrate the reliability of such statistical methods, but also identify issues that will enable the susceptibility maps to be improved in the future.},
  language  = {en}
}