The sharing of autobiographical memories elicits social support

This project encompasses three studies that explore the association between autobiographical memory sharing and social support. We include data, scripts and materials for all studies and in addition, study 3 is pre-registered.

Breaking KASLR Using Memory Deduplication in Virtualized Environments

Recent operating systems (OSs) have adopted a defense mechanism called kernel page table isolation (KPTI) for protecting the kernel from all attacks that break the kernel address space layout randomization (KASLR) using various side-channel analysis techniques. In this paper, we demonstrate that KASLR can still be broken, even with the latest OSs where KPTI is applied. In particular, we present a novel memory-sharing-based side-channel attack that breaks the KASLR on KPTI-enabled Linux virtual machines. The proposed attack leverages the memory deduplication feature on a hypervisor, which provides a timing channel for inferring secret information regarding the victim. By conducting experiments on KVM and VMware ESXi, we show that the proposed attack can obtain the kernel address within a short amount of time. We also present several countermeasures that can prevent such an attack.

OLHARES SOBRE A LUDOTECA UNIVERSITÁRIA UFG/RC: mais do que um lugar em que crianças brincam

Neste artigo socializamos os resultados de uma pesquisa que tomou como objeto a Ludoteca do Curso de Educação Física na Universidade Federal de Goiás - Regional Catalão (UFG/RC). A intenção foi compreendê-la a partir da tríplice visão de espaço de Henri Lefebvre (concebido, percebido e vivido). O percurso metodológico baseou-se na realização de uma pesquisa documental nos arquivos da Ludoteca e de entrevistas narrativas com duas ludotecárias, a quem chamamos de Ana e de Bia, e com a coordenadora, que denominamos Lua. Os dados foram analisados por meio da análise de conteúdo (BARDIN, 1997) e os resultados nos permitem compreender que os sentidos produzidos sobre a Ludoteca UFG possibilitam reconhecê-la como espaço que traz, na dimensão do concebido, marcas da universidade que a acolhe como política de extensão, mas que introjetam nela as possibilidades próprias do ensino e da pesquisa, enriquecendo-a e tornando-a espaço de formação. Pela dimensão do percebido o espaço da Ludoteca tem como marcas a coletividade, a partilha e a produção de subjetividades que transitam e exploram a reprodução do espaço social pela via da transmissão da cultura lúdica, das tradições e do repertório da infância quanto à produção do espaço que tem na transgressão, nas táticas e nas artes de fazer a chance de criação de novos roteiros de pessoa e de sociedade. Pela dimensão do vivido ela se estabelece como laboratório vivo, complexo, que tem em sua gênese a formação pela presença, pela memória, pela partilha e pela ludicidade que, incorporando os valores da universidade pública, alargam o entendimento da Ludoteca para muito além de ser meramente um “lugar em que criança brinca”.Palavras-chave: ludoteca universitária; espaço; educação.LOOKS ABOUT UNIVERSITY LODOTECA UFG/RC: more than where children place to playAbstractIn this article we socialized the results of a research that took place as a discipline of the Physical Education Course at the Federal University of Goias - Catalão. The intention was to understand from the vision of space of Henri Lefebvre (conceived, perceived and lived). The methodological course was based on the accomplishment of a documentary research in the archives of the Ludoteca and the accomplishment of narrative interviews with the playroom workers and the coordinator. The data were analyzed through content analysis (BARDIN, 1997) and the results allow us to perceive the senses produced on the UFG Playroom as a space that brings, in the dimension of the conceived, marks of the university that welcomes it as a extension policy, but which introduce in it the possibilities of teaching and research, enriching it and making it a space for formation. By the dimension of the perceived the space of the playroom has as collective marks the collective, the sharing and the production of subjectivities that transit and explore the reproduction of the social space by means of the transmission of the ludic culture, the traditions and the repertory of the childhood as the production of the space that has in the transgression, tactics and arts to make the chance to create new scripts of person and society. By the dimension of the lived it establishes itself as a living, complex laboratory that has in its genesis the formation by the presence, memory, sharing and playfulness that incorporating the values of the public university extend the understanding of the Labyrinth much more than merely being a "place in what a child plays. "Keywords: playroom; space; education.MIRADAS SOBRE LA LUDOTECA UNIVERSITARIA UFG \ RG: más que un lugar donde juegan los niñosResumenEn este artículo socializamos los resultados de una investigación que tomó como objeto la Ludoteca del Curso de Educación Física en la Universidad Federal de Goiás-Regional Catalán. La intención fue de comprenderla a partir de la triple visión de espacio de Henri Lefebvre (concebido, percibido y vivido). El recorrido metodológico se basó en la realización de una investigación documental en los archivos de la Ludoteca y en la realización de entrevistas narrativas con 02 ludotecas y la coordinadora. Los datos fueron analizados por medio del análisis de contenido (BARDIN, 1997) y los resultados nos permiten que los sentidos producidos sobre la Ludoteca UFG posibilitan reconocerla como espacio que trae, en la dimensión del concebido, marcas de la universidad que la acoge como política de extensión, pero que, introducen en ella las posibilidades propias de la enseñanza y de la investigación enriqueciéndola y haciéndola espacio de formación. Por la dimensión de lo percibido el espacio de la Ludoteca tiene como marcas la colectividad, el compartir y la producción de subjetividades que transitan y exploran la reproducción del espacio social por la vía de la transmisión de la cultura lúdica, de las tradiciones y del repertorio de la niñez en cuanto a la producción del espacio que tiene en la transgresión, en las tácticas y artes de hacer la oportunidad de crear nuevos itinerarios de persona y sociedad. Por la dimensión de lo vivido se establece como un laboratorio vivo, complejo, que tiene en su génesis la formación por la presencia, memoria, compartir y ludicidad que incorporando los valores de la universidad pública amplían el entendimiento de la Ludoteca para mucho más allá de ser meramente un "lugar en que niño juega ".Palabras clave: ludoteca universitaria; Espacio; educación.

Knowledge of Chosen Family History and Depressive Symptoms in Sexual Minority Women

Recent work on intergenerational memory has revealed a positive association between family of origin knowledge and wellbeing in adolescents. However, little is known about the generalizability of these data, as significantly less attention has focused on autobiographical memory sharing and wellbeing in historically marginalized communities. Given the high incidence of familial rejection and abandonment within the LGBTQIA + community, close relationships with individuals outside of one’s family of origin, chosen families, often serve as an important source of social support. This study sought to examine the relationship between knowledge of a close non-family member and wellbeing among emerging adult sexual minority women (SMW) according to their gender presentation. A community sample from New York City comprised of heterosexual women (n = 50), masculine-presenting SMW (n = 50), and feminine presenting SMW (n = 50) completed measures associated with their knowledge of their family of origin, knowledge of a close non-family member, as well as self-reported measures of depression, emotion regulation, and socio-demographic questions. Family of origin knowledge was associated with lower levels of depression only among heterosexual women. However, heterosexual and SMW who knew more about their close non-family member reported lower levels of depression. Additionally, emotion regulation (cognitive reappraisals) mediated the relationship between knowing more about one’s chosen family and lower depressive symptom severity among heterosexual women, but this relationship was only significant for SMW who were at least moderately open about their sexuality. These findings extend the literature on the benefits of memory sharing to historically marginalized communities by showing that memory sources outside of one’s family of origin may be particularly important. Additionally, these data begin to shed light on potential mediating factors, such as emotion regulation and openness about one’s sexual identity, that underlie the links between memory sharing and metrics of wellbeing. Taken together, in contexts in which there may not be opportunities to learn about family history from one’s family of origin, it appears that access to stories from someone close outside of one’s family is also associated with lower levels of depression.

The effect of multi-bit correlation on the design of routing resources in field programmable gate arrays

The large arithmetic-intensive applications increasingly implemented on field-programmable gate arrays (FPGAs) challenge FPGA architects to design FPGAs that can efficiently transport large amount of multi-bit wide signals in the data-path circuits of these applications. In this work, we investigate the area efficiency of two FPGA multi-bit aware routing architectures - the sparse and the enhanced sparse architectures, and compare them with the conventional and the configuration memory sharing architectures. We found that the sparse and enhanced sparse architectures are 6-10% more efficient than the conventional architecture. Our data also show that while the configuration memory sharing architecture can achieve the highest level of theoretical area savings for multi-bit transportation, it performs poorly for circuits with 50% or less multi-bit signals. These results suggest that FPGA architects should look beyond conventional architectures in order to create more efficient routing architectures for modern FPGAs.

The effect of multi-bit correlation on the design of routing resources in field programmable gate arrays

The large arithmetic-intensive applications increasingly implemented on field-programmable gate arrays (FPGAs) challenge FPGA architects to design FPGAs that can efficiently transport large amount of multi-bit wide signals in the data-path circuits of these applications. In this work, we investigate the area efficiency of two FPGA multi-bit aware routing architectures - the sparse and the enhanced sparse architectures, and compare them with the conventional and the configuration memory sharing architectures. We found that the sparse and enhanced sparse architectures are 6-10% more efficient than the conventional architecture. Our data also show that while the configuration memory sharing architecture can achieve the highest level of theoretical area savings for multi-bit transportation, it performs poorly for circuits with 50% or less multi-bit signals. These results suggest that FPGA architects should look beyond conventional architectures in order to create more efficient routing architectures for modern FPGAs.

Design Space Optimization of Shared Memory Architecture in Accelerator-rich Systems

Shared memory architectures, as opposed to private-only memories, provide a viable alternative to meet the ever-increasing memory requirements of multi-accelerator systems to achieve high performance under stringent area and energy constraints. However, an impulsive memory sharing degrades performance due to network contention and latency to access shared memory. We propose the Accelerator Shared Memory (ASM) framework to provide an optimal private/shared memory configuration and shared data allocation under a system’s resource and network constraints. Evaluations show ASM provides up to 34.35% and 31.34% improvement in performance and energy, respectively, over baseline systems.