@article{AaRebmannLeopold2021, author = {Aa, Han van der and Rebmann, Adrian and Leopold, Henrik}, title = {Natural language-based detection of semantic execution anomalies in event logs}, series = {Information systems : IS ; an international journal ; data bases}, volume = {102}, journal = {Information systems : IS ; an international journal ; data bases}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0306-4379}, doi = {10.1016/j.is.2021.101824}, pages = {13}, year = {2021}, abstract = {Anomaly detection in process mining aims to recognize outlying or unexpected behavior in event logs for purposes such as the removal of noise and identification of conformance violations. Existing techniques for this task are primarily frequency-based, arguing that behavior is anomalous because it is uncommon. However, such techniques ignore the semantics of recorded events and, therefore, do not take the meaning of potential anomalies into consideration. In this work, we overcome this caveat and focus on the detection of anomalies from a semantic perspective, arguing that anomalies can be recognized when process behavior does not make sense. To achieve this, we propose an approach that exploits the natural language associated with events. Our key idea is to detect anomalous process behavior by identifying semantically inconsistent execution patterns. To detect such patterns, we first automatically extract business objects and actions from the textual labels of events. We then compare these against a process-independent knowledge base. By populating this knowledge base with patterns from various kinds of resources, our approach can be used in a range of contexts and domains. We demonstrate the capability of our approach to successfully detect semantic execution anomalies through an evaluation based on a set of real-world and synthetic event logs and show the complementary nature of semantics-based anomaly detection to existing frequency-based techniques.}, language = {en} } @article{AbuJarourAjjanFedorowiczetal.2021, author = {AbuJarour, Safa'a and Ajjan, Haya and Fedorowicz, Jane and K{\"o}ster, Antonia}, title = {ICT support for refugees and undocumented immigrants}, series = {Communications of the Association for Information Systems : CAIS}, volume = {48}, journal = {Communications of the Association for Information Systems : CAIS}, publisher = {Association for Information Systems}, address = {New York, NY}, issn = {1529-3181}, doi = {10.17705/1CAIS.04840}, pages = {456 -- 475}, year = {2021}, abstract = {Immigrant integration has become a primary political concern for leaders in Germany and the United States. The information systems (IS) community has begun to research how information and communications technologies can assist immigrants and refugees, such as by examining how countries can facilitate social-inclusion processes. Migrants face the challenge of joining closed communities that cannot integrate or fear doing so. We conducted a panel discussion at the 2019 Americas Conference on Information Systems (AMCIS) in Cancun, Mexico, to introduce multiple viewpoints on immigration. In particular, the panel discussed how technology can both support and prevent immigrants from succeeding in their quest. We conducted the panel to stimulate a thoughtful and dynamic discussion on best practices and recommendations to enhance the discipline's impact on alleviating the challenges that occur for immigrants in their host countries. In this panel report, we introduce the topic of using ICT to help immigrants integrate and identify differences between North/Central America and Europe. We also discuss how immigrants (particularly refugees) use ICT to connect with others, feel that they belong, and maintain their identity. We also uncover the dark and bright sides of how governments use ICT to deter illegal immigration. Finally, we present recommendations for researchers and practitioners on how to best use ICT to assist with immigration.}, language = {en} } @article{AbuJarourAjjanFedorowiczetal.2021, author = {AbuJarour, Safa'a and Ajjan, Haya and Fedorowicz, Jane and Owens, Dawn}, title = {How working from home during COVID-19 affects academic productivity}, series = {Communications of the Association for Information Systems : CAIS}, volume = {48}, journal = {Communications of the Association for Information Systems : CAIS}, publisher = {Association for Information Systems}, address = {New York, NY}, issn = {1529-3181}, doi = {10.17705/1CAIS.04808}, pages = {55 -- 64}, year = {2021}, abstract = {The coronavirus disease of 2019 (COVID-19) pandemic has forced most academics to work from home. This sudden venue change can affect academics' productivity and exacerbate the challenges that confront universities as they face an uncertain future. In this paper, we identify factors that influence academics' productivity while working from home during the mandate to self-isolate. From analyzing results from a global survey we conducted, we found that both personal and technology-related factors affect an individual's attitude toward working from home and productivity. Our results should prove valuable to university administrators to better address the work-life challenges that academics face.}, language = {en} } @article{AckfeldRohloffRzepka2021, author = {Ackfeld, Viola and Rohloff, Tobias and Rzepka, Sylvi}, title = {Increasing personal data contributions for the greater public good}, series = {Behavioural public policy}, journal = {Behavioural public policy}, publisher = {Cambridge University Press}, address = {Cambridge}, issn = {2398-063X}, doi = {10.1017/bpp.2021.39}, pages = {1 -- 27}, year = {2021}, abstract = {Personal data increasingly serve as inputs to public goods. Like other types of contributions to public goods, personal data are likely to be underprovided. We investigate whether classical remedies to underprovision are also applicable to personal data and whether the privacy-sensitive nature of personal data must be additionally accounted for. In a randomized field experiment on a public online education platform, we prompt users to complete their profiles with personal information. Compared to a control message, we find that making public benefits salient increases the number of personal data contributions significantly. This effect is even stronger when additionally emphasizing privacy protection, especially for sensitive information. Our results further suggest that emphasis on both public benefits and privacy protection attracts personal data from a more diverse set of contributors.}, language = {en} } @article{AdamHahnHoelscheretal.2021, author = {Adam, Jan P. and Hahn, Michelle and H{\"o}lscher, Ines and H{\"o}schel, Heike and Janzen, Stella and K{\"o}gel, Lukas}, title = {Automatisierung von Routinet{\"a}tigkeiten im {\"o}ffentlichen Dienst}, series = {Verwaltung \& Management}, volume = {27}, journal = {Verwaltung \& Management}, number = {1}, publisher = {Nomos}, address = {Baden-Baden}, issn = {0947-9856}, doi = {10.5771/0947-9856-2021-1-39}, pages = {39 -- 48}, year = {2021}, abstract = {Auf Basis einer Umfrage unter 300 Besch{\"a}ftigten im {\"o}ffentlichen Dienst untersucht dieser Beitrag, welche m{\"o}glichen Auswirkungen die Digitale Transformation auf das T{\"a}tigkeitsprofil von Mitarbeiterinnen und Mitarbeitern im {\"o}ffentlichen Sektor haben kann. Zum einen finden sich erste Hinweise auf signifikante Effizienzpotenziale durch Automatisierung im {\"o}ffentlichen Sektor. Zum anderen wird deutlich, dass die Mitarbeiterinnen und Mitarbeiter dieser Entwicklung mehrheitlich positiv gegen{\"u}berstehen und sie aktiv an der Verbesserung von Dienstleistungen mitwirken wollen. Aus diesen Erkenntnissen k{\"o}nnen zahlreiche Handlungsimplikationen f{\"u}r Ver{\"a}nderungsprojekte in der Praxis abgeleitet werden. Gleichzeitig ruft dieser Beitrag dazu auf, die Folgen der Digitalen Transformation f{\"u}r Mitarbeiterinnen und Mitarbeiter noch besser zu erforschen.}, language = {de} } @article{AdamGumbschButzetal.2021, author = {Adam, Maurits and Gumbsch, Christian and Butz, Martin V. and Elsner, Birgit}, title = {The impact of action effects on infants' predictive gaze shifts for a non-human grasping action at 7, 11, and 18 months}, series = {Frontiers in psychology}, volume = {12}, journal = {Frontiers in psychology}, publisher = {Frontiers Research Foundation}, address = {Lausanne}, issn = {1664-1078}, doi = {10.3389/fpsyg.2021.695550}, pages = {10}, year = {2021}, abstract = {During the observation of goal-directed actions, infants usually predict the goal at an earlier age when the agent is familiar (e.g., human hand) compared to unfamiliar (e.g., mechanical claw). These findings implicate a crucial role of the developing agentive self for infants' processing of others' action goals. Recent theoretical accounts suggest that predictive gaze behavior relies on an interplay between infants' agentive experience (top-down processes) and perceptual information about the agent and the action-event (bottom-up information; e.g., agency cues). The present study examined 7-, 11-, and 18-month-old infants' predictive gaze behavior for a grasping action performed by an unfamiliar tool, depending on infants' age-related action knowledge about tool-use and the display of the agency cue of producing a salient action effect. The results are in line with the notion of a systematic interplay between experience-based top-down processes and cue-based bottom-up information: Regardless of the salient action effect, predictive gaze shifts did not occur in the 7-month-olds (least experienced age group), but did occur in the 18-month-olds (most experienced age group). In the 11-month-olds, however, predictive gaze shifts occurred only when a salient action effect was presented. This sheds new light on how the developing agentive self, in interplay with available agency cues, supports infants' action-goal prediction also for observed tool-use actions.}, language = {en} } @article{Adamik2021, author = {Adamik, Verena}, title = {From Utopian Island to global empire}, series = {Utopian Studies}, volume = {31}, journal = {Utopian Studies}, number = {3}, publisher = {Penn State University Press}, address = {University Park, Pa}, doi = {doi: 10.5325/utopianstudies.31.3.0457}, pages = {457 -- 474}, year = {2021}, abstract = {This article discusses how Alex Garland's The Beach (1996) engages with conceptions of utopian islands, nation, and colonialism in modernity and how it, from this basis, develops a different spatiality that reflects on a more deterritorialized form of imperial domination within late twentieth-century globalization, as exercised by the United States. The novel is shown to subvert, but not to abolish, two spatial formations that originated in early modernity: nation and utopia. Building on Jean Baudrillard's elaborations regarding simulation and simulacra, the article argues that The Beach creates a hyperreal narrative that does away with the idea of isolated, bounded spaces and that in form and content corresponds with the worldwide dominance of the United States at the end of the twentieth century.}, language = {en} } @article{Adamik2021, author = {Adamik, Verena}, title = {Making worlds from literature}, series = {Thesis eleven : critical theory and historical sociology}, volume = {162}, journal = {Thesis eleven : critical theory and historical sociology}, number = {1}, publisher = {Sage}, address = {London}, issn = {0725-5136}, doi = {https://doi.org/10.1177/0725513621993308}, pages = {105 -- 120}, year = {2021}, abstract = {While W.E.B. Du Bois's first novel, The Quest of the Silver Fleece (1911), is set squarely in the USA, his second work of fiction, Dark Princess: A Romance (1928), abandons this national framework, depicting the treatment of African Americans in the USA as embedded into an international system of economic exploitation based on racial categories. Ultimately, the political visions offered in the novels differ starkly, but both employ a Western literary canon - so-called 'classics' from Greek, German, English, French, and US American literature. With this, Du Bois attempts to create a new space for African Americans in the world (literature) of the 20th century. Weary of the traditions of this 'world literature', the novels complicate and begin to decenter the canon that they draw on. This reading traces what I interpret as subtle signs of frustration over the limits set by the literature that underlies Dark Princess, while its predecessor had been more optimistic in its appropriation of Eurocentric fiction for its propagandist aims.}, language = {en} } @article{AhmadiHeratAlizadehetal.2021, author = {Ahmadi, Hamid and Herat, Nehara and Alizadeh, Shahab and Button, Duane C. and Granacher, Urs and Behm, David G.}, title = {Effect of an inverted seated position with upper arm blood flow restriction on measures of elbow flexors neuromuscular performance}, series = {PLOS ONE / Public Library of Science}, volume = {16}, journal = {PLOS ONE / Public Library of Science}, number = {5}, publisher = {PLoS}, address = {San Fransisco}, issn = {1932-6203}, doi = {10.1371/journal.pone.0245311}, pages = {19}, year = {2021}, abstract = {Purpose The objective of the investigation was to determine the concomitant effects of upper arm blood flow restriction (BFR) and inversion on elbow flexors neuromuscular responses. Methods Randomly allocated, 13 volunteers performed four conditions in a within-subject design: rest (control, 1-min upright position without BFR), control (1-min upright with BFR), 1-min inverted (without BFR), and 1-min inverted with BFR. Evoked and voluntary contractile properties, before, during and after a 30-s maximum voluntary contraction (MVC) exercise intervention were examined as well as pain scale. Results Inversion induced significant pre-exercise intervention decreases in elbow flexors MVC (21.1\%, Z2p = 0.48, p = 0.02) and resting evoked twitch forces (29.4\%, Z2p = 0.34, p = 0.03). The 30-s MVC induced significantly greater pre- to post-test decreases in potentiated twitch force (Z2p = 0.61, p = 0.0009) during inversion (75\%) than upright (65.3\%) conditions. Overall, BFR decreased MVC force 4.8\% (Z2p = 0.37, p = 0.05). For upright position, BFR induced 21.0\% reductions in M-wave amplitude (Z2p = 0.44, p = 0.04). There were no significant differences for electromyographic activity or voluntary activation as measured with the interpolated twitch technique. For all conditions, there was a significant increase in pain scale between the 40-60 s intervals and post-30-s MVC (upright< inversion, and without BFR< BFR). Conclusion The concomitant application of inversion with elbow flexors BFR only amplified neuromuscular performance impairments to a small degree. Individuals who execute forceful contractions when inverted or with BFR should be cognizant that force output may be impaired.}, language = {en} } @article{AkarsuGrobeNowaczyketal.2021, author = {Akarsu, Pinar and Grobe, Richard and Nowaczyk, Julius and Hartlieb, Matthias and Reinicke, Stefan and B{\"o}ker, Alexander and Sperling, Marcel and Reifarth, Martin}, title = {Solid-phase microcontact printing for precise patterning of rough surfaces}, series = {ACS applied polymer materials}, volume = {3}, journal = {ACS applied polymer materials}, number = {5}, publisher = {American Chemical Society}, address = {Washington}, issn = {2637-6105}, doi = {10.1021/acsapm.1c00024}, pages = {2420 -- 2431}, year = {2021}, abstract = {We present a microcontact printing (mu CP) routine suitable to introduce defined (sub-) microscale patterns on surface substrates exhibiting a high capillary activity and receptive to a silane-based chemistry. This is achieved by transferring functional trivalent alkoxysilanes, such as (3-aminopropyl)-triethoxysilane (APTES) as a low-molecular weight ink via reversible covalent attachment to polymer brushes grafted from elastomeric polydimethylsiloxane (PDMS) stamps. The brushes consist of poly{N-[tris(hydroxymethyl)-methyl]acrylamide} (PTrisAAm) synthesized by reversible addition-fragmentation chain-transfer (RAFT)-polymerization and used for immobilization of the alkoxysilane-based ink by substituting the alkoxy moieties with polymer-bound hydroxyl groups. Upon physical contact of the silane-carrying polymers with surfaces, the conjugated silane transfers to the substrate, thus completely suppressing ink-flow and, in turn, maximizing printing accuracy even for otherwise not addressable substrate topographies. We provide a concisely conducted investigation on polymer brush formation using atomic force microscopy (AFM) and ellipsometry as well as ink immobilization utilizing two-dimensional proton nuclear Overhauser enhancement spectroscopy (H-1-H-1-NOESY-NMR). We analyze the mu CP process by printing onto Si-wafers and show how even distinctively rough surfaces can be addressed, which otherwise represent particularly challenging substrates.}, language = {en} } @article{AlbertoSchenck2021, author = {Alberto, Ibraimo and Schenck, Marcia C.}, title = {Paths Are Made by Walking}, series = {Navigating Socialist Encounters}, journal = {Navigating Socialist Encounters}, publisher = {de Gruyter}, address = {Oldenburg}, isbn = {978-3-11-062354-3}, doi = {10.1515/9783110623543-010}, pages = {247 -- 262}, year = {2021}, language = {en} } @article{AltenbergerCisternaGuenteretal.2021, author = {Altenberger, Uwe and Cisterna, Clara and G{\"u}nter, Christina and Guti{\´e}rrez, Adolfo Antonio and Rosales, J.}, title = {Tectono-metamorphic evolution of the proto-Andean margin of Gondwana}, series = {Journal of South American earth sciences}, volume = {110}, journal = {Journal of South American earth sciences}, publisher = {Elsevier}, address = {Oxford}, issn = {0895-9811}, doi = {10.1016/j.jsames.2021.103305}, pages = {23}, year = {2021}, abstract = {The present work gives a detailed analysis of the metamorphic and structural evolution of the back-arc portion of the Famatinian Orogen exposed in the southern Sierra de Aconquija (Cuesta de La Chilca segment) in the Sierras Pampeanas Orientales (Eastern Pampean Sierras). The Pampeanas Orientales include from north to south the Aconquija, Ambato and Ancasti mountains. They are mainly composed of middle to high grade metasedimentary units and magmatic rocks. At the south end of the Sierra de Aconquija, along an east to west segment extending over nearly 10 km (Cuesta de La Chilca), large volumes of metasedimentary rocks crop out. The eastern metasediments were defined as members of the El Portezuelo Metamorphic-Igneous Complex (EPMIC) or Eastern block and the western ones relate to the Quebrada del Molle Metamorphic Complex (QMMC) or Western block. The two blocks are divided by the La Chilca Shear Zone, which is reactivated as the Rio Chanarito fault. The EPMIC, forming the hanging wall, is composed of schists, gneisses and rare amphibolites, calc- silicate schists, marbles and migmatites. The rocks underwent multiple episodes of deformation and a late high strain-rate episode with gradually increasing mylonitization to the west. Metamorphism progrades from a M-1 phase to the peak M-3, characterized by the reactions: Qtz + Pl + Bt +/- Ms -> Grt + Bt(2) + Pl(2) +/- Sil +/- Kfs, Qtz + Bt + Sil -> Crd + Kfs and Qtz + Grt + Sil -> Crd. The M-3 assemblage is coeval with the dominant foliation related to a third deformational phase (D-3). The QMMC, forming the foot wall, is made up of fine-grained banded quartz - biotite schists with quartz veins and quartz-feldspar-rich pegmatites. To the east, schists are also overprinted by mylonitization. The M-3 peak assemblage is quartz + biotite + plagioclase +/- garnet +/- sillimanite +/- muscovite +/- ilmenite +/- magnetite +/- apatite. The studied segment suffered multiphase deformation and metamorphism. Some of these phases can be correlated between both blocks. D-1 is locally preserved in scarce outcrops in the EPMIC but is the dominant in the QMMC, where S-1 is nearly parallel to S-0. In the EPMIC, D-2 is represented by the S-2 foliation, related to the F-2 folding that overprints S-1, with dominant strike NNW - SSE and high angles dip to the E. D-3 in the EPMIC have F-3 folds with axis oblique to S-2; the S-3 foliation has striking NW - SE dipping steeply to the E or W and develops interference patterns. In the QMMC, S-2 (D-2) is a discontinuous cleavage oblique to S-1 and transposed by S-3 (D-3), subparallel to S-1. Such structures in the QMMC developed at subsolidus conditions and could be correlated to those of the EPMIC, which formed under higher P-T conditions. The penetrative deformation D-2 in the EPMIC occurred during a prograde path with syntectonic growth of garnet reaching P-T conditions of 640 degrees C and 0.54 GPa in the EPMIC. This stage was followed by a penetrative deformation D-3 with syn-kinematic growth of garnet, cordierite and plagioclase. Peak P-T conditions calculated for M-3 are 710 degrees C and 0.60 GPa, preserved in the western part of the EPMIC, west of the unnamed fault. The schists from the QMMC suffered the early low grade M-1 metamorphism with minimum PT conditions of ca 400 degrees C and 0.35 GPa, comparable to the fine schists (M-1) outcropping to the east. The D-2 deformation is associated with the prograde M-2 metamorphism. The penetrative D-3 stage is related to a medium grade metamorphism M-3, with peak conditions at ca 590 degrees C and 0.55 GPa. The superimposed stages of deformation and metamorphism reaching high P-T conditions followed by isothermal decompression, defining a clockwise orogenic P-T path. During the Lower Paleozoic, folds were superimposed and recrystallization as well as partial melting at peak conditions occurred. Similar characteristics were described from the basement from other Famatinian-dominated locations of the Sierra de Aconquija and other ranges of the Sierras Pampeanas Orientales.}, language = {en} } @article{AnderssonSangelandBerggrenetal.2021, author = {Andersson, Edvin K. W. and S{\aa}ngeland, Christofer and Berggren, Elin and Johansson, Fredrik O. L. and K{\"u}hn, Danilo and Lindblad, Andreas and Mindemark, Jonas and Hahlin, Maria}, title = {Early-stage decomposition of solid polymer electrolytes in Li-metal batteries}, series = {Journal of materials chemistry : A, Materials for energy and sustainability}, volume = {9}, journal = {Journal of materials chemistry : A, Materials for energy and sustainability}, number = {39}, publisher = {Royal Society of Chemistry}, address = {Cambridge}, issn = {2050-7488}, doi = {10.1039/d1ta05015j}, pages = {22462 -- 22471}, year = {2021}, abstract = {Development of functional and stable solid polymer electrolytes (SPEs) for battery applications is an important step towards both safer batteries and for the realization of lithium-based or anode-less batteries. The interface between the lithium and the solid polymer electrolyte is one of the bottlenecks, where severe degradation is expected. Here, the stability of three different SPEs - poly(ethylene oxide) (PEO), poly(epsilon-caprolactone) (PCL) and poly(trimethylene carbonate) (PTMC) - together with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salt, is investigated after they have been exposed to lithium metal under UHV conditions. Degradation compounds, e.g. Li-O-R, LiF and LixSyOz, are identified for all SPEs using soft X-ray photoelectron spectroscopy. A competing degradation between polymer and salt is identified in the outermost surface region (<7 nm), and is dependent on the polymer host. PTMC:LiTFSI shows the most severe decomposition of both polymer and salt followed by PCL:LiTFSI and PEO:LiTFSI. In addition, the movement of lithium species through the decomposed interface shows large variation depending on the polymer electrolyte system.}, language = {en} } @article{AndjelkovićChenSimevskietal.2021, author = {Andjelković, Marko and Chen, Junchao and Simevski, Aleksandar and Schrape, Oliver and Krstić, Miloš and Kraemer, Rolf}, title = {Monitoring of particle count rate and LET variations with pulse stretching inverters}, series = {IEEE transactions on nuclear science : a publication of the IEEE Nuclear and Plasma Sciences Society}, volume = {68}, journal = {IEEE transactions on nuclear science : a publication of the IEEE Nuclear and Plasma Sciences Society}, number = {8}, publisher = {Institute of Electrical and Electronics Engineers}, address = {New York, NY}, issn = {0018-9499}, doi = {10.1109/TNS.2021.3076400}, pages = {1772 -- 1781}, year = {2021}, abstract = {This study investigates the use of pulse stretching (skew-sized) inverters for monitoring the variation of count rate and linear energy transfer (LET) of energetic particles. The basic particle detector is a cascade of two pulse stretching inverters, and the required sensing area is obtained by connecting up to 12 two-inverter cells in parallel and employing the required number of parallel arrays. The incident particles are detected as single-event transients (SETs), whereby the SET count rate denotes the particle count rate, while the SET pulsewidth distribution depicts the LET variations. The advantage of the proposed solution is the possibility to sense the LET variations using fully digital processing logic. SPICE simulations conducted on IHP's 130-nm CMOS technology have shown that the SET pulsewidth varies by approximately 550 ps over the LET range from 1 to 100 MeV center dot cm(2) center dot mg(-1). The proposed detector is intended for triggering the fault-tolerant mechanisms within a self-adaptive multiprocessing system employed in space. It can be implemented as a standalone detector or integrated in the same chip with the target system.}, language = {en} } @article{AndreevRaschkeBiskabornetal.2021, author = {Andreev, Andrei and Raschke, Elena and Biskaborn, Boris and Vyse, Stuart Andrew and Courtin, J{\´e}r{\´e}my and B{\"o}hmer, Thomas and Stoof-Leichsenring, Kathleen R. and Kruse, Stefan and Pestryakova, Luidmila Agafyevna and Herzschuh, Ulrike}, title = {Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records}, series = {Boreas : an international journal of quaternary research}, volume = {50}, journal = {Boreas : an international journal of quaternary research}, number = {3}, publisher = {Wiley-Blackwell}, address = {Oxford [u.a.]}, issn = {0300-9483}, doi = {10.1111/bor.12521}, pages = {652 -- 670}, year = {2021}, abstract = {This paper presents two new pollen records and quantitative climate reconstructions from northern Chukotka documenting environmental changes over the last 27.9 ka. Open tundra- and steppe-like habitats dominated between 27.9 and 18.7 cal. ka BP. Betula and Alnus shrubs might have grown in sheltered microhabitats but disappeared after 18.7 cal. ka BP. Although the climate was rather harsh, local herb-dominated communities supported herbivores as is evident by the presence of coprophilous spores in the sediments. The increase in Salix and Cyperaceae similar to 16.1 cal. ka BP suggests climate amelioration. Shrub Betula appeared similar to 15.9 cal. ka BP, and became dominant after similar to 15.52 cal. ka BP, whilst typical steppe communities drastically reduced. Very high presence of Botryococcus in the Lateglacial sediments reflects widespread shallow habitats, probably due to lake level increase. Shrub Alnus became common after similar to 13 cal. ka BP reflecting further climate amelioration. Simultaneously, herb communities gradually decreased in the vegetation reaching a minimum similar to 11.8 cal. ka BP. A gradual decrease of algae remains suggests a reduction of shallow-water habitats. Shrubby and graminoid tundra was dominant similar to 11.8-11.1 cal. ka BP, later Salix stands significantly decreased. The forest-tundra ecotone established in the Early Holocene, shortly after 11.1 cal. ka BP. Low contents of green algae in the Early Holocene sediments likely reflect deeper aquatic conditions. The most favourable climate conditions were between similar to 10.6 and 7 cal. ka BP. Vegetation became similar to the modern after similar to 7 cal. ka BP but Pinus pumila came to the Ilirney area at about 1.2 cal. ka BP. It is important to emphasize that the study area provided refugia for Betula and Alnus during MIS 2. It is also notable that our records do not reflect evidence of Younger Dryas cooling, which is inconsistent with some regional environmental records but in good accordance with some others.}, language = {en} } @article{AndresLauterbachJongbloedetal.2021, author = {Andres, Lesley and Lauterbach, Wolfgang and Jongbloed, Janine and H{\"u}mme, Hartwig}, title = {Gender, education, and labour market participation across the life course}, series = {International journal of lifelong education}, volume = {40}, journal = {International journal of lifelong education}, number = {2}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {0260-1370}, doi = {10.1080/02601370.2021.1924302}, pages = {170 -- 189}, year = {2021}, abstract = {In this paper, we employ a comparative life course approach for Canada and Germany to unravel the relationships among general and vocational educational attainment and different life course activities, with a focus on labour market and income inequality by gender. Life course theory and related concepts of 'time,' 'normative patterns,' 'order and disorder,' and 'discontinuities' are used to inform the analyses. Data from the Paths on Life's Way (Paths) project in British Columbia, Canada and the German Pathways from Late Childhood to Adulthood (LifE) which span 28 and 33 years, respectively, are employed to examine life trajectories from leaving school to around age 45. Sequence analysis and cluster analyses portray both within and between country differences - and in particular gender differences - in educational attainment, employment, and other activities across the life course which has an impact on ultimate labour market participation and income levels. 'Normative' life courses that follow a traditional order correspond with higher levels of full-time work and higher incomes; in Germany more so than Canada, these clusters are male dominated. Clusters characterised by 'disordered' and 'discontinuous' life courses in both countries are female dominated and associated with lower income levels.}, language = {en} } @article{AndresBruttelFriedrichsen2021, author = {Andres, Maximilian and Bruttel, Lisa and Friedrichsen, Jana}, title = {The leniency rule revisited}, series = {International journal of industrial organization}, volume = {76}, journal = {International journal of industrial organization}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0167-7187}, doi = {10.1016/j.ijindorg.2021.102728}, year = {2021}, abstract = {The experimental literature on antitrust enforcement provides robust evidence that communication plays an important role for the formation and stability of cartels. We extend these studies through a design that distinguishes between innocuous communication and communication about a cartel, sanctioning only the latter. To this aim, we introduce a participant in the role of the competition authority, who is properly incentivized to judge the communication content and price setting behavior of the firms. Using this novel design, we revisit the question whether a leniency rule successfully destabilizes cartels. In contrast to existing experimental studies, we find that a leniency rule does not affect cartelization. We discuss potential explanations for this contrasting result.}, language = {en} } @article{AngeleskaOmranianNikoloski2021, author = {Angeleska, Angela and Omranian, Sara and Nikoloski, Zoran}, title = {Coherent network partitions}, series = {Theoretical computer science : the journal of the EATCS}, volume = {894}, journal = {Theoretical computer science : the journal of the EATCS}, publisher = {Elsevier}, address = {Amsterdam [u.a.]}, issn = {0304-3975}, doi = {10.1016/j.tcs.2021.10.002}, pages = {3 -- 11}, year = {2021}, abstract = {We continue to study coherent partitions of graphs whereby the vertex set is partitioned into subsets that induce biclique spanned subgraphs. The problem of identifying the minimum number of edges to obtain biclique spanned connected components (CNP), called the coherence number, is NP-hard even on bipartite graphs. Here, we propose a graph transformation geared towards obtaining an O (log n)-approximation algorithm for the CNP on a bipartite graph with n vertices. The transformation is inspired by a new characterization of biclique spanned subgraphs. In addition, we study coherent partitions on prime graphs, and show that finding coherent partitions reduces to the problem of finding coherent partitions in a prime graph. Therefore, these results provide future directions for approximation algorithms for the coherence number of a given graph.}, language = {en} } @article{Angerer2021, author = {Angerer, Marie-Luise}, title = {Theoretische und poitische Elemente eines affektiven Gef{\"u}ges}, series = {Politik der Emotionen/Macht der Affekte}, journal = {Politik der Emotionen/Macht der Affekte}, publisher = {Diaphanes}, address = {Z{\"u}rich}, isbn = {978-3-0358-0419-5}, pages = {99 -- 110}, year = {2021}, language = {de} } @article{ApeltBinderKuster2021, author = {Apelt, Maja and Binder, Beate and Kuster, Friederike}, title = {Einleitung}, series = {Feministische Studien}, volume = {39}, journal = {Feministische Studien}, number = {2}, publisher = {De Gruyter Oldenbourg}, address = {Berlin}, issn = {0723-5186}, doi = {10.1515/fs-2021-0027}, pages = {197 -- 201}, year = {2021}, language = {de} }