Academic literature on the topic 'Speculative interference'

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Journal articles on the topic "Speculative interference":

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Yang, Lei, Yu Dai, and Bin Zhang. "Optimized Speculative Execution to Improve Performance of MapReduce Jobs on Virtualized Computing Environment." Mathematical Problems in Engineering 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/2724531.

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Recently, virtualization has become more and more important in the cloud computing to support efficient flexible resource provisioning. However, the performance interference among virtual machines may affect the efficiency of the resource provisioning. In a virtualized environment, where multiple MapReduce applications are deployed, the performance interference can also affect the performance of the Map and Reduce tasks resulting in the performance degradation of the MapReduce jobs. Then, in order to ensure the performance of the MapReduce jobs, a framework for scheduling the MapReduce jobs with the consideration of the performance interference among the virtual machines is proposed. The core of the framework is to identify the straggler tasks in a job and back up these tasks to make the backed up one overtake the original tasks in order to reduce the overall response time of the job. Then, to identify the straggler task, this paper uses a method for predicting the performance interference degree. A method for scheduling the backing-up tasks is presented. To verify the effectiveness of our framework, a set of experiments are done. The experiments show that the proposed framework has better performance in the virtual cluster compared with the current speculative execution framework.
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V. Vygodin, A. "Effects of Central Banks' Interference on Speculative Build-up in the Foreign Exchange Markets." International Journal of Applied Economics and Finance 9, no. 1 (January 1, 2015): 1–14. http://dx.doi.org/10.3923/ijaef.2015.1.14.

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Heller, Henry. "Bankers, Finance Capital and the French Revolutionary Terror (1791–94)." Historical Materialism 22, no. 3-4 (December 2, 2014): 172–216. http://dx.doi.org/10.1163/1569206x-12341377.

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This article argues that popular revolution was closely tied to the establishment of capitalism. Contrary to the revisionist George V. Taylor’s view that the Revolution had nothing to do with the advance of capitalism because financial and productive capital were divided from one another, this article contends that the Revolution played a critical role in tying them together. Prior to the Revolution financiers began to make limited investments in wholesale trade, manufacturing and mining. But during the revolutionary crisis the sans-culottes pushed the Jacobins to create a national money and to curb speculation in order to foster production and exchange and reduce unemployment. With speculative activity blocked by popular resistance and state interference, bankers and other capitalists increasingly turned to productive investments and forged a link between financial and productive capital which proved crucial to further capitalist accumulation.
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Fragakis, Nikolaos, Gabriele Vicedomini, and Carlo Pappone. "Endurance Sport Activity and Risk of Atrial Fibrillation – Epidemiology, Proposed Mechanisms and Management." Arrhythmia & Electrophysiology Review 3, no. 1 (April 30, 2014): 15–19. http://dx.doi.org/10.15420/aer.2011.3.1.15.

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There is evidence for a higher prevalence of atrial fibrillation (AF) in athletes engaged in long-term endurance sports training compared with the general population. Although atrial anatomic adaptations, alterations in autonomic nervous system, chronic systemic inflammation and fibrosis have been proposed as potential mechanisms, they remain speculative. Medical therapy with long-term antiarrhythmic agents or ‘pill in the pocket’ medications is hampered by limitations, such as sports eligibility and interference with exercise tolerance. AF ablation represents a valid therapeutic option with results similar to these achieved in other patients. Nevertheless, further clinical trials are needed to confirm whether endurance sport practice affects the maintenance of sinus rhythm following catheter ablation of AF.
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Fragakis, Nikolaos, Gabriele Vicedomini, and Carlo Pappone. "Endurance Sport Activity and Risk of Atrial Fibrillation – Epidemiology, Proposed Mechanisms and Management." Arrhythmia & Electrophysiology Review 3, no. 1 (2011): 15. http://dx.doi.org/10.15420/articles/endurance-sport-activity-and-risk-atrial-fibrillation-epidemiology-proposed-mechanisms-and.

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There is evidence for a higher prevalence of atrial fibrillation (AF) in athletes engaged in long-term endurance sports training compared with the general population. Although atrial anatomic adaptations, alterations in autonomic nervous system, chronic systemic inflammation and fibrosis have been proposed as potential mechanisms, they remain speculative. Medical therapy with long-term antiarrhythmic agents or ‘pill in the pocket’ medications is hampered by limitations, such as sports eligibility and interference with exercise tolerance. AF ablation represents a valid therapeutic option with results similar to these achieved in other patients. Nevertheless, further clinical trials are needed to confirm whether endurance sport practice affects the maintenance of sinus rhythm following catheter ablation of AF.
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GAMBLE, SUSAN. "AN APPEALING CASE OF SPECTRA: PHOTOGRAPHS ON DISPLAY AT THE ROYAL SOCIETY, LONDON 1891." Nuncius 17, no. 2 (2002): 635–51. http://dx.doi.org/10.1163/182539102x00153.

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Abstracttitle SUMMARY /title This essay compares the visual appearance and reception of two differing exhibits of spectroscopic data at the Royal Society's Conversazione of 1891; it is speculative in that there is no photographic record of the objects that were displayed. The authors Gabriel Lippmann (1845-1921) and Charles Piazzi Smyth (1819-1900) represent two different approaches both to astrophysics and photography current at the end of the nineteenth-century. I examine the importance of spectra as 'scientific' and aesthetic images. In particular, I explore how Gabriel Lippmann used the image of a spectrum to promote his invention of an instant 'interference' colour photography to a scientific milieu as well as a popular audience - eventually winning a Nobel Prize for this process in 1908.
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Loska, Krzysztof. "Posthumanistyczne echa, apokaliptyczne tony i zwierzęce odgłosy w filmach Bonga Joon-ho." Images. The International Journal of European Film, Performing Arts and Audiovisual Communication 28, no. 37 (March 31, 2021): 151–66. http://dx.doi.org/10.14746/i.2020.37.09.

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The subject of the analysis in this article are three films by Bong Joon-ho: The Host (2006), Snowpiercer (2013) and Okja (2017), considered from the posthumanist perspective. A starting point is Donna Haraway’s suggestion that science-fiction stories should be treated as a tool for speculative thinking. Then, I point to the way the Korean film director demonstrates his critical reflection on the effects of climate change, deepening economic inequalities, the impact of global capitalism and the biopolitical model of the governance. The main aim is to seek out the possible strategies of resistance which enable humans to change their attitude to other species (Okja) and to ask a question about the scope of human freedom, the effects of our interference in the functioning of the biosphere (Snowpiercer) and the results of genetic modifications of animals.
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Everson, Carol A. "Clinical assessment of blood leukocytes, serum cytokines, and serum immunoglobulins as responses to sleep deprivation in laboratory rats." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 289, no. 4 (October 2005): R1054—R1063. http://dx.doi.org/10.1152/ajpregu.00021.2005.

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The specific systems and mechanisms affected by sleep deprivation that may perpetuate disease processes in humans still are speculative. In laboratory rats, prolonged sleep deprivation induces a state marked by abnormal control over indigenous bacteria that results in transient infections of internal tissues and eventual lethal septicemia. The present studies investigated changes in blood, serum, and bone marrow parameters that may provide diagnostic clues to immunopathology. Prolonged sleep deprivation was produced in rats by the disk-over-water method, a well-established and selective means that does not interfere with normal waking behaviors. Measurements included bone and blood differential white blood cell counts, multiple serum cytokines and chemokines, several major Ig classes and subclasses, and serum endotoxin concentrations. The results indicated mild, regenerative neutrophilia in sleep-deprived rats, initially accompanied by immature neutrophils and later by monocytosis. The corresponding serum cytokine profile revealed an evolving proinflammatory state, particularly by high incidence of interleukin-1β, implicating mononuclear phagocytes and resident tissue cells as main intermediary sources. In addition, multiple serum Ig classes were increased by sleep deprivation without experimental administration of an exogenous antigen. Despite this immune activation, there was failure to eradicate invading bacteria and toxins, suggesting competing anti-inflammatory processes or interference with immune effector functions during sleep deprivation. Nearly all of the immune-related events that emerged as responses to sleep deprivation have been implicated as etiological or provocative factors in other disease processes and may provide means by which sleep deprivation as a risk factor in disease may become understood.
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Sonah, Humira, Rupesh K. Deshmukh, and Anil S. Kotasthane. "Fungicidal Interference during Infection Related Developmental Stages in Magnaporthe grisea." International Journal of Phytopathology 1, no. 1 (December 15, 2012): 49–55. http://dx.doi.org/10.33687/phytopath.001.01.0015.

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Rice blast, a serious epidemic disease that limits grain yield worldwide is caused by fungal pathogen Magnaporthe grisea. The present investigation was carried out to identify the probable avenues of interference by different fungicides during the critical stages of infection related morphogenesis of M. grisea. Effect of six fungicides at different stages of infection related morphogenesis showed variable results like interference in conidial germination, distortion of surface structure of the spores, interference in the germ tube elongation, interference in the transfer of the cell contents from spore to appresorrium, deformity in appressorial dome, interference in the melanin deposition. We speculate the critical stages at which these fungicides may interfere. The activity of immunosuppressive drug cyclosporin A (CsA) which is a potential antifungal agent was equated with all the fungicides used. We hypothesize that the exposure of the M. grisea spore to the fungicide may lead to the formation of a cyclophilin CYP1-fungicide complex, which inactivates calcineurin and prevents calcium/ calmodulin-dependent protein phosphatase signaling and is therefore one of the target of fungicidal interference. An understanding of how fungal pathogens break the protective barrier that comprise the surface of the host plant as well as precise identification of avenues of fungicidal interference during infection related development in M. grisea will lead to novel approach for controlling plant diseases.
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Masson, M., M. Kostine, T. Barnetche, M. E. Truchetet, C. Richez, and T. Schaeverbeke. "AB0661 CO-MEDICATIONS MAY ALTER THE RESPONSE TO TNF-INHIBITORS IN SPONDYLOARTHRITIS PATIENTS: A PHARMACOMICROBIOMIC EFFECT?" Annals of the Rheumatic Diseases 79, Suppl 1 (June 2020): 1625.2–1626. http://dx.doi.org/10.1136/annrheumdis-2020-eular.3823.

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Background:The reason why some spondyloarthritis (SA) patients fail to respond to TNF inhibitors (TNF-i) remains unclear. Recently, it has been shown in cancer immunotherapy that the therapeutic response may be strongly altered by co-medication with drugs interfering with the gut microbiota, such as antibiotics, proton pump inhibitors (PPI), non-steroidal anti-inflammatory drugs (NSAIDs), psychotropic or antidiabetic drugs.Objectives:Considering the potential role of the gut microbiota in the pathophysiology of SA as in the therapeutic response, the aim was to study the influence of co-medications known to interfere with the microbiota with the therapeutic response to TNF-i in SA patients.Methods:We retrospectively reviewed the charts of all patients treated in our department with a first TNF-i from 2009 to 2018. Data collected were demographic information, HLA-B27 status, disease characteristics… Patients were classified as responder (R) or non-responder (NR) according to the BASDAI (< 40/100) value at M6 or to the clinician judgment (when BASDAI was not available). Regarding co-medications, we collected all drugs known to interfere with the gut microbiota that were administered 1 month before and during the first 3 months of the TNF-i treatment. We only considered drugs given to more than 5% of patients. Quantitative data were expressed as mean ± standard deviation, and qualitative variables as percentages. Univariate and multivariate analyses were performed to evaluate the relationship between co-medications and TNF-i. All analyses were computed on STATA 13.1 software with a statistically significant threshold of 0.05.Results:We included 188 patients suffering from ankylosing spondylitis (n=89) or peripheral SA (n=99). They were 68 women and 120 men, mean aged 46.6 ± 13; 53% were B27 positive. TNF-i were infliximab (19%), etanercept (44%), adalimumab (34%) golimumab (2%), certolizumab (1%), combined with MTX in 51 patients. 135 patients (72%) were R and 53 (28%) NR. In univariate analysis, 59.1% of patients who received NSAIDs were R, compared to 88.2% of patients not treated with NSAIDs (p< 0.0001); 42.2% of patients receiving PPIs were R compared to 86.3% of patients PPI free (p< 0.0001); 55.8% of patients who were given antibiotics were R, compared to 75.7% of patients who did not (p=0,02); 27.8% of patients treated with psychotropic drugs were R, compared to 75.9% of patients not receiving such treatment (p< 0.0001) (Figure 1). Differences were not statistically significant for corticosteroids, MTX, angiotensin-converting enzyme inhibitors and statins. Although 91% of patients taken PPIs were also given NSAIDs, NSAIDs, PPIs and antibiotics intake were considered as independent factors associated with TNF-i failure in multivariate analysis.Conclusion:Co-medication with NSAIDs, PPIs, antibiotics and psychotropic drugs were significantly associated with a decreased chance to respond to TNF-i. The hypothesis that this effect is due to their interference with the gut microbiota is only speculative but, regardless the reason of this interaction, clinician should be aware of the potential negative effect of these co-medication on TNF-i.Figure 1.Disclosure of Interests:Maéva Masson: None declared, Marie Kostine: None declared, Thomas Barnetche: None declared, Marie-Elise Truchetet: None declared, Christophe Richez Consultant of: Abbvie, Amgen, Mylan, Pfizer, Sandoz and UCB., Thierry Schaeverbeke: None declared

Dissertations / Theses on the topic "Speculative interference":

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Borg, Isak. "Speculative Interference: A Modern Spectre Attack." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-450199.

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Since the Spectre family of attacks were made public knowledge in January of 2018, researchers, manufacturers and interested individuals have experimented a lot with creating defences against it. But there have also been a lot of research aimed at circumventing these defences and finding alternative side-channels and mechanisms for performing Spectre-type attacks. This thesis implements and demonstrates a proof of concept of one of these newfound attacks known as a Speculative interference attack. This is done in a simulated environment, which to our knowledge has not been done before at the time of writing this report. After the 'basic' version of a Spectre attack has been explained, the thesis will explain how the more advanced interference attack works and how it is implemented in the simulated environment. In the end the results gained with the attack will be presented, which should convince the reader of the relevance and possibilities of the attack.
Efter att säkerhetsattackerna kända som Spectre offentliggjordes i Januari 2018 har bådeforskare, utvecklare och intresserade individer experimenterat med att ta fram försvar mot dem. Det har också spenderats mycket resurser och tid på att finna sätt att kringgå dessa försvar och att hitta alternativa sido-kanaler och mekanismer som kan utnyttjas för att genomföra en Spectre-attack. Den här uppsatsen demonstrerar en fungerande implementation av en av dessa nyfunna attacker, känd som en ’Speculative interference attack’. Detta görs i en simulerad miljö, vilken enligt vår kännedom inte tidigare har gjorts vid genomförandet av detta arbete. Efter att en mer grundläggande version av en Spectre-attack har förklarats kommer uppsatsen att gå igenom hur den mer avancerade ’interference’ attacken fungerar och hur den är implementerad. I slutändan kommer de resultat attacken tagit fram att redogöras, vilket bör övertyga läsaren om attackens relevans och möjligheter.

Conference papers on the topic "Speculative interference":

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Behnia, Mohammad, Prateek Sahu, Riccardo Paccagnella, Jiyong Yu, Zirui Neil Zhao, Xiang Zou, Thomas Unterluggauer, et al. "Speculative interference attacks: breaking invisible speculation schemes." In ASPLOS '21: 26th ACM International Conference on Architectural Support for Programming Languages and Operating Systems. New York, NY, USA: ACM, 2021. http://dx.doi.org/10.1145/3445814.3446708.

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Ahmed, Nabeel, Vivek Shrivastava, Arunesh Mishra, Suman Banerjee, Srinivasan Keshav, and Konstantina Papagiannaki. "Interference mitigation in enterprise wlans through speculative scheduling." In the 13th annual ACM international conference. New York, New York, USA: ACM Press, 2007. http://dx.doi.org/10.1145/1287853.1287900.

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