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- Prakash, A, et al.
(författare)
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Deliverable D6.3 : Trials and experimentation (cycle 3)
- 2022
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Rapport (refereegranskat)abstract
- This deliverable presents the third and final cycle of trials and experimentation activities executed over 5GENESIS facilities. The document is the continuation of deliverables D6.1 and D6.2, in the sense that it captures tests carried out over the evolved infrastructures hosting 5GENESIS facilities following the methodology defined in the previous editions of this deliverable. The tests reported in this document focus on i) the final 5G infrastructure deployments that includes radio and core elements mostly in Stand-Alone (SA) deployment configurations based on commercial and open implementations, and ii) the various use cases/applications, some of them also involving field trials. Most of the tests described herein, especially the generic/lab ones are performed using the Open5GENESIS experimentation suite.
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- Sircova, Anna, et al.
(författare)
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A global look at time : a 24-country study of the equivalence of the Zimbardo Time Perspective Inventory
- 2014
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Ingår i: SAGE Open. - : SAGE Publications. - 2158-2440. ; :4, s. 1-12
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Tidskriftsartikel (refereegranskat)abstract
- In this article, we assess the structural equivalence of the Zimbardo Time Perspective Inventory (ZTPI) across 26 samples from 24 countries (N = 12,200). The ZTPI is proven to be a valid and reliable index of individual differences in time perspective across five temporal categories: Past Negative, Past Positive, Present Fatalistic, Present Hedonistic, and Future. We obtained evidence for invariance of 36 items (out of 56) and also the five-factor structure of ZTPI across 23 countries. The short ZTPI scales are reliable for country-level analysis, whereas we recommend the use of the full scales for individual-level analysis. The short version of ZTPI will further promote integration of research in the time perspective domain in relation to many different psycho-social processes.
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- Anagnostopoulos, I., et al.
(författare)
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Power-Aware Dynamic Memory Management on Many-Core Platforms Utilizing DVFS
- 2013
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Ingår i: ACM Transactions on Embedded Computing Systems. - : Association for Computing Machinery (ACM). - 1539-9087 .- 1558-3465. ; 13:1, s. 40-
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Tidskriftsartikel (refereegranskat)abstract
- Today multicore platforms are already prevalent solutions for modern embedded systems. In the future, embedded platforms will have an even more increased processor core count, composing many-core platforms. In addition, applications are becoming more complex and dynamic and try to efficiently utilize the amount of available resources on the embedded platforms. Efficient memory utilization is a key challenge for application developers, especially since memory is a scarce resource and often becomes the system's bottleneck. To cope with this dynamism and achieve better memory footprint utilization (lowmemory fragmentation) application developers resort to the usage of dynamic memory (heap) management techniques, by allocating and deallocating data at runtime. Moreover, overall power consumption is another key challenge that needs to be taken into consideration. Towards this, designers employ the usage of Dynamic Voltage and Frequency Scaling (DVFS) mechanisms, adapting to the application's computational demands at runtime. In this article, we propose the combination of dynamic memory management techniques with DVFS ones. This is performed by integrating, within thememorymanager, runtimemonitoringmechanisms that steer the DVFSmechanisms to adjust clock frequency and voltage supply based on heap performance. The proposed approach has been evaluated on a distributed shared-memory many-core platform composed of multiple LEON3 processors interconnected by a Network-on-Chip infrastructure, supporting DVFS. Experimental results show that by using the proposed method for monitoring and applying DVFS mechanisms the power consumption concerning dynamic memory management was reduced by approximately 37%. In addition we present the trade-offs the proposed approach. Last, by combining the developed method with heap fragmentation-aware dynamic memory managers, we achieve low heap fragmentation values combined with low power consumption.
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- Joseph, A, et al.
(författare)
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Effects of acyl-coenzyme A binding protein (ACBP)/diazepam-binding inhibitor (DBI) on body mass index
- 2021
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Ingår i: Cell death & disease. - : Springer Science and Business Media LLC. - 2041-4889. ; 12:6, s. 599-
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Tidskriftsartikel (refereegranskat)abstract
- In mice, the plasma concentrations of the appetite-stimulatory and autophagy-inhibitory factor acyl-coenzyme A binding protein (ACBP, also called diazepam-binding inhibitor, DBI) acutely increase in response to starvation, but also do so upon chronic overnutrition leading to obesity. Here, we show that knockout of Acbp/Dbi in adipose tissue is sufficient to prevent high-fat diet-induced weight gain in mice. We investigated ACBP/DBI plasma concentrations in several patient cohorts to discover a similar dual pattern of regulation. In relatively healthy subjects, ACBP/DBI concentrations independently correlated with body mass index (BMI) and age. The association between ACBP/DBI and BMI was lost in subjects that underwent major weight gain in the subsequent 3–9 years, as well as in advanced cancer patients. Voluntary fasting, undernutrition in the context of advanced cancer, as well as chemotherapy were associated with an increase in circulating ACBP/DBI levels. Altogether, these results support the conclusion that ACBP/DBI may play an important role in body mass homeostasis as well as in its failure.
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