@misc{BensonMakaitRabl2021,
  author    = {Benson, Lawrence and Makait, Hendrik and Rabl, Tilmann},
  title     = {Viper},
  series = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Reihe der Digital Engineering Fakult{\"a}t},
  journal   = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Reihe der Digital Engineering Fakult{\"a}t},
  number    = {9},
  issn      = {2150-8097},
  doi       = {10.25932/publishup-55966},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-559664},
  pages     = {15},
  year      = {2021},
  abstract  = {Key-value stores (KVSs) have found wide application in modern software systems. For persistence, their data resides in slow secondary storage, which requires KVSs to employ various techniques to increase their read and write performance from and to the underlying medium. Emerging persistent memory (PMem) technologies offer data persistence at close-to-DRAM speed, making them a promising alternative to classical disk-based storage. However, simply drop-in replacing existing storage with PMem does not yield good results, as block-based access behaves differently in PMem than on disk and ignores PMem's byte addressability, layout, and unique performance characteristics. In this paper, we propose three PMem-specific access patterns and implement them in a hybrid PMem-DRAM KVS called Viper. We employ a DRAM-based hash index and a PMem-aware storage layout to utilize the random-write speed of DRAM and efficient sequential-write performance PMem. Our evaluation shows that Viper significantly outperforms existing KVSs for core KVS operations while providing full data persistence. Moreover, Viper outperforms existing PMem-only, hybrid, and disk-based KVSs by 4-18x for write workloads, while matching or surpassing their get performance.},
  language  = {en}
}
@phdthesis{VenturaBort2020,
  author    = {Ventura-Bort, Carlos},
  title     = {Temporo-spatial dynamics of the impact of emotional contexts on visual processing and memory},
  doi       = {10.25932/publishup-55023},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-550236},
  school      = {Universit{\"a}t Potsdam},
  pages     = {208},
  year      = {2020},
  abstract  = {It has frequently been observed that single emotional events are not only more efficiently processed, but also better remembered, and form longer-lasting memory traces than neutral material. However, when emotional information is perceived as a part of a complex event, such as in the context of or in relation to other events and/or source details, the modulatory effects of emotion are less clear. The present work aims to investigate how emotional, contextual source information modulates the initial encoding and subsequent long-term retrieval of associated neutral material (item memory) and contextual source details (contextual source memory). To do so, a two-task experiment was used, consisting of an incidental encoding task in which neutral objects were displayed over different contextual background scenes which varied in emotional content (unpleasant, pleasant, and neutral), and a delayed retrieval task (1 week), in which previously-encoded objects and new ones were presented. In a series of studies, behavioral indices (Studies 2, 3, and 5), event-related potentials (ERPs; Studies 1-4), and functional magnetic resonance imaging (Study 5) were used to investigate whether emotional contexts can rapidly tune the visual processing of associated neutral information (Study 1) and modulate long-term item memory (Study 2), how different recognition memory processes (familiarity vs. recollection) contribute to these emotion effects on item and contextual source memory (Study 3), whether the emotional effects of item memory can also be observed during spontaneous retrieval (Sstudy 4), and which brain regions underpin the modulatory effects of emotional contexts on item and contextual source memory (Study 5). In Study 1, it was observed that emotional contexts by means of emotional associative learning, can rapidly alter the processing of associated neutral information. Neutral items associated with emotional contexts (i.e. emotional associates) compared to neutral ones, showed enhanced perceptual and more elaborate processing after one single pairing, as indexed by larger amplitudes in the P100 and LPP components, respectively. Study 2 showed that emotional contexts produce longer-lasting memory effects, as evidenced by better item memory performance and larger ERP Old/New differences for emotional associates. In Study 3, a mnemonic differentiation was observed between item and contextual source memory which was modulated by emotion. Item memory was driven by familiarity, independently of emotional contexts during encoding, whereas contextual source memory was driven by recollection, and better for emotional material. As in Study 2, enhancing effects of emotional contexts for item memory were observed in ERPs associated with recollection processes. Likewise, for contextual source memory, a pronounced recollection-related ERP enhancement was observed for exclusively emotional contexts. Study 4 showed that the long-term recollection enhancement of emotional contexts on item memory can be observed even when retrieval is not explicitly attempted, as measured with ERPs, suggesting that the emotion enhancing effects on memory are not related to the task embedded during recognition, but to the motivational relevance of the triggering event. In Study 5, it was observed that enhancing effects of emotional contexts on item and contextual source memory involve stronger engagement of the brain's regions which are associated with memory recollection, including areas of the medial temporal lobe, posterior parietal cortex, and prefrontal cortex. Taken together, these findings suggest that emotional contexts rapidly modulate the initial processing of associated neutral information and the subsequent, long-term item and contextual source memories. The enhanced memory effects of emotional contexts are strongly supported by recollection rather than familiarity processes, and are shown to be triggered when retrieval is both explicitly and spontaneously attempted. These results provide new insights into the modulatory role of emotional information on the visual processing and the long-term recognition memory of complex events. The present findings are integrated into the current theoretical models and future ventures are discussed.},
  language  = {en}
}
@phdthesis{LeGallMboro2020,
  author    = {LeGall, Yann and Mboro, Mnyaka Sururu},
  title     = {Remembering the dismembered},
  doi       = {10.25932/publishup-50850},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-508502},
  school      = {Universit{\"a}t Potsdam},
  pages     = {viii, 346},
  year      = {2020},
  abstract  = {This thesis - written in co-authorship with Tanzanian activist Mnyaka Sururu Mboro - examines different cases of repatriation of ancestral remains to African countries and communities through the prism of postcolonial memory studies. It follows the theft and displacement of prominent ancestors from East and Southern Africa (Sarah Baartman, Dawid Stuurman, Mtwa Mkwawa, Songea Mbano, King Hintsa and the victims of the Ovaherero and Nama genocides) and argues that efforts made for the repatriation of their remains have contributed to a transnational remembrance of colonial violence. Drawing from cultural studies theories such as "multidirectional memory", "rehumanisation" and "necropolitics", the thesis argues for a new conceptualisation or "re-membrance" in repatriation, through processes of reunion, empowerment, story-telling and belonging. Besides, the afterlives of the dead ancestors, who stand at the centre of political debates on justice and reparations, remind of their past struggles against colonial oppression. They are therefore "memento vita", fostering counter-discourses that recognize them as people and stories. This manuscript is accompanied by a "(web)site of memory" where some of the research findings are made available to a wider audience. This blog also hosts important sound material which appears in the thesis as interventions by external contributors. Through QR codes, both the written and the digital version are linked with each other to problematize the idea of a written monograph and bring a polyphonic perspective to those diverse, yet connected, histories.},
  language  = {en}
}
@misc{Eckstein2018,
  author    = {Eckstein, Lars},
  title     = {Recollecting bones},
  series = {Postcolonial Studies},
  journal   = {Postcolonial Studies},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-413654},
  pages     = {15},
  year      = {2018},
  abstract  = {This article critically engages with the different politics of memory involved in debates over the restitution of Indigenous Australian ancestral remains stolen by colonial actors in the nineteenth and early twentieth centuries and brought to Berlin in the name of science. The debates crystallise how deeply divided German scientific discourses still are over the question of whether the historical and moral obligations of colonial injustice should be accepted or whether researchers should continue to profess scientific disinterest'. The debates also reveal an almost unanimous disavowal of Indigenous Australian knowledges and mnemonic conceptions across all camps. The bitter ironies of this disavowal become evident when Indigenous Australian quests for the remains of their ancestral dead lost in the limbo of German scientific collections are juxtaposed with white Australian (fictional) quests for the remains of Ludwig Leichhardt, lost in the Australian interior.},
  language  = {en}
}
@misc{PaapeHemforthVasishth2018,
  author    = {Paape, Dario L. J. F. and Hemforth, Barbara and Vasishth, Shravan},
  title     = {Processing of ellipsis with garden-path antecedents in French and German},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {452},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-414062},
  pages     = {46},
  year      = {2018},
  abstract  = {In a self-paced reading study on German sluicing, Paape (Paape, 2016) found that reading times were shorter at the ellipsis site when the antecedent was a temporarily ambiguous garden-path structure. As a post-hoc explanation of this finding, Paape assumed that the antecedent's memory representation was reactivated during syntactic reanalysis, making it easier to retrieve. In two eye tracking experiments, we subjected the reactivation hypothesis to further empirical scrutiny. Experiment 1, carried out in French, showed no evidence in favor in the reactivation hypothesis. Instead, results for one out of the three types of garden-path sentences that were tested suggest that subjects sometimes failed to resolve the temporary ambiguity in the antecedent clause, and subsequently failed to resolve the ellipsis. The results of Experiment 2, a conceptual replication of Paape's (Paape, 2016) original study carried out in German, are compatible with the reactivation hypothesis, but leave open the possibility that the observed speedup for ambiguous antecedents may be due to occasional retrievals of an incorrect structure.},
  language  = {en}
}
@misc{Boide2011,
  type      = {Master Thesis},
  author    = {Boide, Silvia},
  title     = {Strategien der Ged{\"a}chtnisreflexion bei der Inszenierung von Erinnerung in Literatur und bildender Kunst},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-59807},
  school      = {Universit{\"a}t Potsdam},
  year      = {2011},
  abstract  = {Die Arbeit geht aus von der Annahme, dass Literatur und Malerei, obgleich sie ihren Darstellungsformen entsprechend unterschiedliche Werkzeuge oder Strategien nutzen, {\"a}hnliche Potentiale der Ged{\"a}chtnisreflexion f{\"u}r den Rezipienten bereitstellen. Selbst wenn die Strategien zur Erlangung eines Potentials der Reflexion von Ged{\"a}chtnis also an die jeweilige Disziplin gebunden sind, so k{\"o}nnen doch die reflektierten Aspekte {\"a}hnliche sein. Ziel dieser Arbeit ist es, zu zeigen, dass in Theorie und Praxis solche {\"U}berschneidungen auffindbar sind. Dabei sollen Literatur und bildende Kunst (hier: Malerei) als zwei von vielen m{\"o}glichen Erinnerungsmedien und ihre Funktionen innerhalb eines kollektiven Ged{\"a}chtnisses als solche dargestellt werden. Speziell befasst sich die Arbeit dann mit der Funktion der Reflexion des kollektiven Erinnerns als Wirkungspotential, das im Rezeptionsprozess aktualisiert werden kann. Verschiedene Strategien der Ged{\"a}chtnisreflexion werden unterschieden und in den drei Anwendungsbeispielen analysiert. Die Arbeit fasst zun{\"a}chst einige von den Studien Jan und Aleida Assmanns ausgehende narratologische Konzepte zur Erinnerungskultur zusammen, darunter die Ans{\"a}tze von Astrid Erll und Birgit Neumann. Es kristalliert sich eine Unterscheidung von Ged{\"a}chtnisbildung und Ged{\"a}chtnisreflexion heraus. Genauer in den Blick genommen wird Astrid Erlls Modell einer „Rhetorik des kollektiven Ged{\"a}chtnisses." Auf drei Textebenen, der Handlungsebene, der Textstruktur und der sprachlichen Ebene k{\"o}nnen Potentiale der Ged{\"a}chtnisreflexion beschrieben werden. Anhand dieser Unterteilungen werden im Anwendungsteil dann zwei literarische Prosatexte der gegenw{\"a}rtigen Erinnerungsliteratur in den Blick genommen. Beide Texte, sowohl Grass' Im Krebsgang als auch Timms Halbschatten weisen vielf{\"a}ltige Strategien der Ged{\"a}chtnisreflexion auf, die sich aber in ihrer Schwerpunktbildung voneinander unterscheiden. Zudem wird die Methodik auf den Gem{\"a}ldezyklus 18. Oktober 1977 des Malers Gerhard Richter angewandt.},
  language  = {de}
}
@misc{Kliegl1989,
  author    = {Kliegl, Reinhold},
  title     = {Kognitive Plastizit{\"a}t und altersbedingte Grenzen am Beispiel des Erwerbs einer Ged{\"a}chtnistechnik},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-40321},
  year      = {1989},
  abstract  = {Die Bedeutung kognitiver Entwicklungskapazit{\"a}t (Plastizit{\"a}t) und ihrer altersabh{\"a}ngigen Grenzen f{\"u}r Theorien kognitiven Alters wird thematisiert. F{\"u}r kognitive Basisprozesse wird erwartet, daß die durch Training umgesetzte Entwicklungskapazit{\"a}t {\"a}lterer Menschen zwar ausreicht, die Ausgangsleistung junger Erwachsener zu {\"u}bertreffen, daß aber aufgrund altersbedingter Grenzen der Entwicklungskapazit{\"a}t nur sehr wenige {\"a}ltere Erwachsene das Leistungsniveau trainierter junger Erwachsener erreichen werden. Am Beispiel eines Ged{\"a}chtnistrainingsprogrammes zur Erh{\"o}hung der Merkf{\"a}higkeit f{\"u}r Wortlisten werden zwei Forschungsstrategien vorgestellt: (a) das Training von sehr leistungsf{\"a}higen {\"a}lteren Erwachsenen und (b) L{\"a}ngsschnitt-Einzelfall-Studien. Die experimentellen Befunde best{\"a}tigten die theoretischen Erwartungen. Zwar waren die Leistungen der besten {\"a}lteren Erwachsenen etwa doppelt so hoch wie die untrainierter junger Erwachsener, aber die durch das Training aufgedeckten Altersverluste konnten auch in bis zu 75 weiteren {\"U}bungsstunden nicht behoben werden.},
  language  = {de}
}
@misc{BaltesKliegl1988,
  author    = {Baltes, Paul B. and Kliegl, Reinhold},
  title     = {Lernen und Ged{\"a}chtnis im Alter : {\"u}ber Plastizit{\"a}t und deren Grenzen},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-40277},
  year      = {1988},
  abstract  = {Ged{\"a}chtnish{\"o}chstleistungen sind auch im Alter m{\"o}glich. Dies konnte am Beispiel der »Methode der Orte« experimentell best{\"a}tigt werden. Hierbei hat sich gezeigt, daß das Gehirn {\"u}ber große kognitive Kapazit{\"a}tsreserven verf{\"u}gt. In einer speziellen Testmethode (»testing the limits«) zeigt sich aber im Hochleistungsbereich, trotz der grunds{\"a}tzlichen Plastizit{\"a}t, ein altersbezogenes Nachlassen der Ged{\"a}chtnismechanik. Offenbar gibt es biologische Grenzen in der Schnelligkeit der menschlichen Vorstellungskraft. Vielleicht gelingt es auf der Grundlage dieser Erkentnnis, einen zuverl{\"a}ssigen Markierungsindikator f{\"u}r das hirnphysiologische Altern zu finden. Daraus k{\"o}nnten sich auch neue Methoden zur Fr{\"u}herkennung von Demenzen ableiten lassen.},
  language  = {de}
}