@misc{WrightWachs2019, author = {Wright, Michelle F. and Wachs, Sebastian}, title = {Does Peer Rejection Moderate the Associations among Cyberbullying Victimization, Depression, and Anxiety among Adolescents with Autism Spectrum Disorder?}, series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, doi = {10.25932/publishup-42726}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-427266}, pages = {12}, year = {2019}, abstract = {While the consequences of cyberbullying victimization have received some attention in the literature, to date, little is known about the multiple types of strains in adolescents' lives, such as whether cyberbullying victimization and peer rejection increase their vulnerability to depression and anxiety. Even though some research found that adolescents with disabilities show higher risk for cyberbullying victimization, most research has focused on typically developing adolescents. Thus, the present study focused on examining the moderating effect of peer rejection in the relationships between cyberbullying victimization, depression, and anxiety among adolescents with autism spectrum disorder. There were 128 participants (89\% male; ages ranging from 11-16 years old) with autism spectrum disorder in the sixth, seventh, or eighth grade at 16 middle schools in the United States. Participants completed questionnaires on cyberbullying victimization, peer rejection, depression, and anxiety. Results revealed that cyberbullying victimization was associated positively with peer rejection, anxiety, and depression among adolescents with autism spectrum disorder. Further, peer rejection was linked positively with depression and anxiety. Peer rejection moderated the positive relationship between cyberbullying victimization and depression, but not anxiety. Implications for prevention programs and future research are discussed.}, language = {en} } @article{WrightWachs2019, author = {Wright, Michelle F. and Wachs, Sebastian}, title = {Does Peer Rejection Moderate the Associations among Cyberbullying Victimization, Depression, and Anxiety among Adolescents with Autism Spectrum Disorder?}, series = {Children}, volume = {6}, journal = {Children}, publisher = {MDPI}, address = {Basel}, issn = {2227-9067}, doi = {10.3390/children6030041}, pages = {12}, year = {2019}, abstract = {While the consequences of cyberbullying victimization have received some attention in the literature, to date, little is known about the multiple types of strains in adolescents' lives, such as whether cyberbullying victimization and peer rejection increase their vulnerability to depression and anxiety. Even though some research found that adolescents with disabilities show higher risk for cyberbullying victimization, most research has focused on typically developing adolescents. Thus, the present study focused on examining the moderating effect of peer rejection in the relationships between cyberbullying victimization, depression, and anxiety among adolescents with autism spectrum disorder. There were 128 participants (89\% male; ages ranging from 11-16 years old) with autism spectrum disorder in the sixth, seventh, or eighth grade at 16 middle schools in the United States. Participants completed questionnaires on cyberbullying victimization, peer rejection, depression, and anxiety. Results revealed that cyberbullying victimization was associated positively with peer rejection, anxiety, and depression among adolescents with autism spectrum disorder. Further, peer rejection was linked positively with depression and anxiety. Peer rejection moderated the positive relationship between cyberbullying victimization and depression, but not anxiety. Implications for prevention programs and future research are discussed.}, language = {en} } @misc{KalinowskiGronostajVock2019, author = {Kalinowski, Eva and Gronostaj, Anna and Vock, Miriam}, title = {Effective Professional Development for Teachers to Foster Students' Academic Language Proficiency Across the Curriculum}, series = {Postprints der Universit{\"a}t Potsdam Humanwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Humanwissenschaftliche Reihe}, number = {543}, issn = {1866-8364}, doi = {10.25932/publishup-42721}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-427219}, pages = {23}, year = {2019}, abstract = {This review summarizes features of professional development programs that aim to prepare in-service teachers to improve students' academic language proficiency when teaching subject areas. The 38 studies reviewed suggest that all of the profiled interventions were effective to some extent. The programs share many characteristics considered important in successful teacher professional development across different subject areas. They also include some features that appear to be specific to teacher training in this particular domain. This review supports the idea that professional development helps change teachers' thinking and practice and benefits students, if certain features are taken into consideration in its design and implementation.}, language = {en} } @article{KalinowskiGronostajVock2019, author = {Kalinowski, Eva and Gronostaj, Anna and Vock, Miriam}, title = {Effective Professional Development for Teachers to Foster Students' Academic Language Proficiency Across the Curriculum}, series = {AERA Open}, volume = {5}, journal = {AERA Open}, number = {1}, publisher = {Sage}, address = {Thousand Oaks}, issn = {2332-8584}, doi = {10.1177/2332858419828691}, pages = {1 -- 23}, year = {2019}, abstract = {This review summarizes features of professional development programs that aim to prepare in-service teachers to improve students' academic language proficiency when teaching subject areas. The 38 studies reviewed suggest that all of the profiled interventions were effective to some extent. The programs share many characteristics considered important in successful teacher professional development across different subject areas. They also include some features that appear to be specific to teacher training in this particular domain. This review supports the idea that professional development helps change teachers' thinking and practice and benefits students, if certain features are taken into consideration in its design and implementation.}, language = {en} } @article{SarhanKoopmanSchuetzetal.2019, author = {Sarhan, Radwan Mohamed and Koopman, Wouter-Willem Adriaan and Schuetz, Roman and Schmid, Thomas and Liebig, Ferenc and Koetz, Joachim and Bargheer, Matias}, title = {The importance of plasmonic heating for the plasmondriven photodimerization of 4-nitrothiophenol}, series = {Scientific Reports}, volume = {9}, journal = {Scientific Reports}, publisher = {Macmillan Publishers Limited}, address = {London}, issn = {2045-2322}, doi = {10.1038/s41598-019-38627-2}, pages = {8}, year = {2019}, abstract = {Metal nanoparticles form potent nanoreactors, driven by the optical generation of energetic electrons and nanoscale heat. The relative influence of these two factors on nanoscale chemistry is strongly debated. This article discusses the temperature dependence of the dimerization of 4-nitrothiophenol (4-NTP) into 4,4′-dimercaptoazobenzene (DMAB) adsorbed on gold nanoflowers by Surface-Enhanced Raman Scattering (SERS). Raman thermometry shows a significant optical heating of the particles. The ratio of the Stokes and the anti-Stokes Raman signal moreover demonstrates that the molecular temperature during the reaction rises beyond the average crystal lattice temperature of the plasmonic particles. The product bands have an even higher temperature than reactant bands, which suggests that the reaction proceeds preferentially at thermal hot spots. In addition, kinetic measurements of the reaction during external heating of the reaction environment yield a considerable rise of the reaction rate with temperature. Despite this significant heating effects, a comparison of SERS spectra recorded after heating the sample by an external heater to spectra recorded after prolonged illumination shows that the reaction is strictly photo-driven. While in both cases the temperature increase is comparable, the dimerization occurs only in the presence of light. Intensity dependent measurements at fixed temperatures confirm this finding.}, language = {en} } @phdthesis{Raatz2019, author = {Raatz, Michael}, title = {Strategies within predator-prey interactions - from individuals to ecosystems}, doi = {10.25932/publishup-42658}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-426587}, school = {Universit{\"a}t Potsdam}, pages = {175}, year = {2019}, abstract = {Predator-prey interactions provide central links in food webs. These interaction are directly or indirectly impacted by a number of factors. These factors range from physiological characteristics of individual organisms, over specifics of their interaction to impacts of the environment. They may generate the potential for the application of different strategies by predators and prey. Within this thesis, I modelled predator-prey interactions and investigated a broad range of different factors driving the application of certain strategies, that affect the individuals or their populations. In doing so, I focused on phytoplankton-zooplankton systems as established model systems of predator-prey interactions. At the level of predator physiology I proposed, and partly confirmed, adaptations to fluctuating availability of co-limiting nutrients as beneficial strategies. These may allow to store ingested nutrients or to regulate the effort put into nutrient assimilation. We found that these two strategies are beneficial at different fluctuation frequencies of the nutrients, but may positively interact at intermediate frequencies. The corresponding experiments supported our model results. We found that the temporal structure of nutrient fluctuations indeed has strong effects on the juvenile somatic growth rate of {\itshape Daphnia}. Predator colimitation by energy and essential biochemical nutrients gave rise to another physiological strategy. High-quality prey species may render themselves indispensable in a scenario of predator-mediated coexistence by being the only source of essential biochemical nutrients, such as cholesterol. Thereby, the high-quality prey may even compensate for a lacking defense and ensure its persistence in competition with other more defended prey species. We found a similar effect in a model where algae and bacteria compete for nutrients. Now, being the only source of a compound that is required by the competitor (bacteria) prevented the competitive exclusion of the algae. In this case, the essential compounds were the organic carbon provided by the algae. Here again, being indispensable served as a prey strategy that ensured its coexistence. The latter scenario also gave rise to the application of the two metabolic strategies of autotrophy and heterotrophy by algae and bacteria, respectively. We found that their coexistence allowed the recycling of resources in a microbial loop that would otherwise be lost. Instead, these resources were made available to higher trophic levels, increasing the trophic transfer efficiency in food webs. The predation process comprises the next higher level of factors shaping the predator-prey interaction, besides these factors that originated from the functioning or composition of individuals. Here, I focused on defensive mechanisms and investigated multiple scenarios of static or adaptive combinations of prey defense and predator offense. I confirmed and extended earlier reports on the coexistence-promoting effects of partially lower palatability of the prey community. When bacteria and algae are coexisting, a higher palatability of bacteria may increase the average predator biomass, with the side effect of making the population dynamics more regular. This may facilitate experimental investigations and interpretations. If defense and offense are adaptive, this allows organisms to maximize their growth rate. Besides this fitness-enhancing effect, I found that co-adaptation may provide the predator-prey system with the flexibility to buffer external perturbations. On top of these rather internal factors, environmental drivers also affect predator-prey interactions. I showed that environmental nutrient fluctuations may create a spatio-temporal resource heterogeneity that selects for different predator strategies. I hypothesized that this might favour either storage or acclimation specialists, depending on the frequency of the environmental fluctuations. We found that many of these factors promote the coexistence of different strategies and may therefore support and sustain biodiversity. Thus, they might be relevant for the maintenance of crucial ecosystem functions that also affect us humans. Besides this, the richness of factors that impact predator-prey interactions might explain why so many species, especially in the planktonic regime, are able to coexist.}, language = {en} } @phdthesis{PerlazaJimenez2019, author = {Perlaza-Jimenez, Laura}, title = {Discerning functional associations and relationships between molecules in Arabidopsis thaliana using genome-wide correlated mutations}, school = {Universit{\"a}t Potsdam}, pages = {118}, year = {2019}, language = {en} } @phdthesis{Cecchini2019, author = {Cecchini, Gloria}, title = {Improving network inference by overcoming statistical limitations}, doi = {10.25932/publishup-42670}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-426705}, school = {Universit{\"a}t Potsdam}, pages = {124}, year = {2019}, abstract = {A reliable inference of networks from data is of key interest in many scientific fields. Several methods have been suggested in the literature to reliably determine links in a network. These techniques rely on statistical methods, typically controlling the number of false positive links, but not considering false negative links. In this thesis new methodologies to improve network inference are suggested. Initial analyses demonstrate the impact of falsepositive and false negative conclusions about the presence or absence of links on the resulting inferred network. Consequently, revealing the importance of making well-considered choices leads to suggest new approaches to enhance existing network reconstruction methods. A simulation study, presented in Chapter 3, shows that different values to balance false positive and false negative conclusions about links should be used in order to reliably estimate network characteristics. The existence of type I and type II errors in the reconstructed network, also called biased network, is accepted. Consequently, an analytic method that describes the influence of these two errors on the network structure is explored. As a result of this analysis, an analytic formula of the density of the biased vertex degree distribution is found (Chapter 4). In the inverse problem, the vertex degree distribution of the true underlying network is analytically reconstructed, assuming the probabilities of type I and type II errors. Chapters 4-5 show that the method is robust to incorrect estimates of α and β within reasonable limits. In Chapter 6, an iterative procedure to enhance this method is presented in the case of large errors on the estimates of α and β. The investigations presented so far focus on the influence of false positive and false negative links on the network characteristics. In Chapter 7, the analysis is reversed - the study focuses on the influence of network characteristics on the probability of type I and type II errors, in the case of networks of coupled oscillators. The probabilities of α and β are influenced by the shortest path length and the detour degree, respectively. These results have been used to improve the network reconstruction, when the true underlying network is not known a priori, introducing a novel and advanced concept of threshold.}, language = {en} } @techreport{Krieger2019, type = {Working Paper}, author = {Krieger, Heike}, title = {Populist governments and international law}, series = {KFG Working Paper Series}, journal = {KFG Working Paper Series}, number = {29}, doi = {10.25932/publishup-42686}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-426863}, pages = {29}, year = {2019}, abstract = {The worldwide populist wave has contributed to a perception that international law is currently in a state of crisis. This article examines in how far populist governments have challenged prevailing interpretations of international law. The article links structural features of populism with an analysis of populist governmental strategies and argumentative practices. It demonstrates that, in their rhetoric, populist governments promote an understanding of international law as a mere law of coordination. This is, however, not entirely reflected in their legal practices where an instrumental, cherry-picking approach prevails. The article concludes that policies of populist governments affect the current state of international law on two different levels: In the political sphere their practices alter the general environment in which legal rules are interpreted. In the legal sphere populist governments push for changes in the interpretation of established international legal rules. The article substantiates these propositions by focusing on the principle of nonintervention and foreign funding for NGOs.}, language = {en} } @techreport{McLachlan2019, type = {Working Paper}, author = {McLachlan, Campbell}, title = {The assault on international adjudication and the limits of withdrawal}, series = {KFG Working Paper Series}, journal = {KFG Working Paper Series}, number = {28}, doi = {10.25932/publishup-42685}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-426855}, pages = {38}, year = {2019}, abstract = {International adjudication is currently under assault, encouraging a number of States to withdraw, or to consider withdrawing, from treaties providing for international dispute settlement. This Working Paper argues that the act of treaty withdrawal is not merely as the unilateral executive exercise of the individual sovereign prerogative of a State. International law places checks upon the exercise of withdrawal, recognising that it is an act that of its nature affects the interests of other States parties, which have a collective interest in constraining withdrawal. National courts have a complementary function in restraining unilateral withdrawal in order to support the domestic constitution. The arguments advanced against international adjudication in the name of popular democracy at the national level can serve as a cloak for the exercise of executive power unrestrained by law. The submission by States of their disputes to peaceful settlement through international adjudication is central, not incidental, to the successful operation of the international legal system.}, language = {en} }