133 research outputs found
Correction:Giant resistive switching in mixed phase BiFeO<sub>3</sub> via phase population control
No full textThe authors have noticed that the name of one of the co-authors was spelt incorrectly in the originally published version of this article. 'Sayed O. Sayedghaee' should have been spelt 'Sayed O. Sayedaghaee' as provided in the corrected author list above. The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.</p
Tão dúbio, tão coerente: forma e conteúdo nas crônicas jornalísticas de Sayed Kashua
No full textEste artigo consiste na análise de duas crônicas jornalísticas do escritor árabe-israelense Sayed Kashua publicadas no jornal israelense Haaretz. Estes textos são selecionados devido à sua riqueza de conteúdo e pelo uso de estratégias retóricas, tais como a autoironia e o sarcasmo, para expor os conflitos pelos quais passa o “eu do cronista” retratado pelo autor. Este estudo tem como base os Estudos Culturais e os Novos Paradigmas Literários, ferramentas que permitem o estudo das crônicas jornalísticas como textos literários. Nestas crônicas, de uma maneira despretensiosa, partindo de experiências subjetivas e de temas familiares, com autoironia e tom satírico, Kashua reporta as experiências de um árabe israelense que vive num embate em torno de suas duplas lealdades e ideologias conflitantes, refletindo uma negociação entre sua etnicidade e sua nacionalidade. A crônica, neste contexto, é considerada o local apropriado para a escrita de Kashua: a ambiguidade do gênero é similar à necessidade de quebras de dualidades na sociedade israelense para entendermos e convivermos com o “eu do cronista” de Sayed Kashua. So dubious, so coherent: form and content in Sayed Kashua´s journalistic chronicles - Abstract: This paper consists of the literary analysis oftwo journalistic chronicles written in Hebrew by the Muslim Arab Israeli author Sayed Kashua published in the Israeli newspaper Haaretz. These texts are selected due to their richness of content and use of rhetorical strategies such as self-irony and sarcasm to expose the conflicts through which the “I of the chronicler” portrayed by the author goesthrough. This analysis will rely on theoretical assumptions of Cultural Studies and the “New literary paradigms”, tools that will enable us to study the journalistic chronicle as a literary text. In these chronicles, in a non-pretentious way, coming from the subjective experiences and family topics, with self-irony and in a satirical way, Kashua reports the experiences of an Israeli Arab who lives in a clash over his dual loyalty and conflicting ideologies, reflecting a negotiation between his ethnicity and his nationality. The chronicle, in this context, is considered the appropriate location for Kashua’s writings: the ambiguity of the literary genre is similar to the necessity of breaking dualities in Israeli society to understand and to be acquainted with the “I of the chronicler” of Sayed Kashua
Culpa e sátira no divã: duas crônicas jornalisticas de Sayed Kashua
No full textNeste artigo, são analisadas duas crônicas jornalísticas do escritor árabe israelense Sayed Kashua publicadas no jornal Haaretz. Nelas, um embate entre uma sociedade radical e racista e a herança ética e moral dos idealizadores do Sionismo, segundo a qual os árabes receberiam direitos iguais aos da popula-ção judaica, encontram-se como pano de fundo de histórias tão satíricas quanto trágicas. O preconceito contra o árabe permeia as situações pelas quais passa o eu do cronista, mas cabe ao leitor decidir se ele é apenas uma possibilidade que poderia ser vivenciada, se ele de fato está presente nas relações do árabe na sociedade judaico israelense à sua volta ou se estas são alternativas que se complementam.In this paper, I analyze two journalistic chronicles written by the Israeli Arab author Sayed Kashua published in Israeli newspaper Haaretz. In these texts, a clash between a radical and racist society and the ethics and moral heritage of the creators of Zionism, according to which the Arabs would receive equal rights as the Jewish population, are the background of these stories which are as satirical as tragic. The prejudice against the Arab population permeates the situations in which “I of the chronicler” live, but it is up to the reader to decide if it is just a possibility that could be experienced, if they actually permeate the Arab relations in Israeli Jewish society or if these are alternatives that are complementary
Sectoral allocation by gender of Latin American workers over the liberalization period of the 1990s
No full textThe recent restructuring of Latin American economies has renewed interest in the effects of trade liberalization, on labor markets, and on the gender division of labor. The author does not attempt to establish casuality between economic reforms, and the types of jobs that men and women hold. Instead, she provides a detailed description of the trends in male, and female formal, and informal sector participation during the economic reform period in Argentina, Brazil, and Costa Rica. The author first compares the gender composition of the formal, informal wage, and self-employment sectors in a year before reforms (1988 for Argentina, 1989 for Brazil, and Costa Rica), and a year after reforms implementation (1997 for Argentina, 1995 for Brazil and Costa Rica). Although women continued to be more likely than men to work in the informal wage sector, there is no trend of"masculinization"or"feminization"of the informal sector, or any other. Instead, in Argentina men have overtaken women as the most prevalent workers in the informal wage sector, while in Brazil, the opposite has occurred (as men move into self-employment). In Costa Rica there have been no statistical, observable changes. The author then considers the distribution across sectors within each gender group, to identify whether men, and women are more likely to select different sectors in the post-reform period relative to the pre-reform period. Among both men, and women in all three countries (except Brazilian men), workers have become more likely to hold informal wage jobs, and less likely to hold formal sector jobs. Trends in human capital accumulation explain these changes for both men, and women, while changes in gender roles, primarily in homecare and marriage, do not seem to have an effect.Health Monitoring&Evaluation,Labor Policies,Population&Development,Public Health Promotion,Environmental Economics&Policies,Health Monitoring&Evaluation,Environmental Economics&Policies,Population&Development,Banks&Banking Reform,Work&Working Conditions
Timed execution in distributed machine learning
No full textDeep learning powers many transformative core technologies including Autonomous Driving, Natural Language Translation, and Automatic Medical Diagnosis. Its exceptional ability to extract intricate structures from high-dimensional data takes the credit for major advances in machine learning.
Essential ingredients that make Deep Learning possible include: the availability of a massive curated data, a well-designed model, and readily available high-performance computation. The computation used in training deep neural networks has doubled every 3.4 months since 2012, five times faster than Moore's law. Fulfilling this massive computational demand that has long outgrown the capability of a single high-end node is vital to keep extending the flow of innovations. For example, in 2018, the AlphaGoZero model trained with 1.89 ExaFlops/s times a day. The state-of-the-art GPU at the time, NVidia V-100, could only deliver 125 TeraFlops. In a meanwhile, Summit, the fastest supercomputer in the world, could sustain 1 ExaFlops/s using 27,360 NVidia V-100 GPUs through distributed computation.
This dissertation studies the challenges of scaling out an ML job to keep up with the computational demand, specifically the problems stemmed from the complex interplay of various resources in the distributed ML. In the first stage of this research, we developed methods and systems to properly observe a distributed ML environment by tracing a distributed execution, visualizing the results, and expanding the observability to the production infrastructure. Later we developed three systems to address scalability challenges using these methods and systems based on a precise execution timing of the spectrum of resources:
Network: TicTac reduces internal computation delays by enforcing a near-optimal order on network transfers, which results in up to 37.7% throughput increases.
Computation: Caramel increases the network utilization and decreases network congestion by modifying the order of computation and choosing the most fitted collective primitive for the workload. This result in cutting the training time up by a factor of up to . While computation and network scheduling suggest an order of execution, TimedRPC addresses the issue of correctly enforcing this order by implementing a priority-based scheduling through pre-emption where an on-going transfer can be paused when a transfer with higher priority is requested.
I/O: Diot maximizes the I/O throughput by tuning knobs such as number of concurrent I/O requests and read size on I/O pipeline. Additionally it detects the I/O delivery unfairness which may causes a struggling worker due to slow I/O through.
Thesis Statement: Heuristic timing of distributed machine learning execution leads to utilization optimizations for computation, network, and storage, which in turn improves the overall throughput. In general, any multi-resource optimization involving parallelism is at least NP-Hard.Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2020-08-25 without embargo termsThe student, Hadi Hashemi, accepted the attached license on 2020-05-02 at 16:29.The student, Hadi Hashemi, submitted this Dissertation for approval on 2020-05-02 at 23:01.This Dissertation was approved for publication on 2020-05-08 at 15:05.DSpace SAF Submission Ingestion Package generated from Vireo submission #14892 on 2020-08-25 at 17:05:26Made available in DSpace on 2020-08-26T21:54:05Z (GMT). No. of bitstreams: 3
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Previous issue date: 2020-05-08"Updated information in dc.creator field from ""Hashemi, Hadi"" to ""Hashemi, Sayed Hadi"" by request of the author.
THE OBSERVATION OF A NEW g STATE OF NAPHTHALENE BY MULTIPHOTON IONIZATION
No full text. N. Compton, R. H. Huebner, P. w. Reinhardt, and L. G. Christophorou, J. Chem. Phys. 48, 901 (1968). Jacqueline O. Berg: NSF Postdoctoral Fellow 1976-1977.Author Institution: Department of Chemistry, University of CaliforniaA resonance in the four-photon ionization spectrum of naphthalene at 470 nm has been found. This has been assigned to a two photon transition, to a g state lying at 42 500 . A resonance at this same energy was seen previously by Compton et al., in a threshold electron impact spectrum. The possible importance of this state in the radiationless de activation of the one-photon-allowed states in this region will be discussed
Identification and stage-specific association with the translational apparatus of TbZFP3, a CCCH protein that promotes trypanosome life-cycle development
No full textThe post-transcriptional control of gene expression is becoming increasingly important in the understanding of regulated events in eukaryotic cells. The parasitic kinetoplastids have a unique reliance on such processes, because their genome is organized into polycistronic transcription units in which adjacent genes are not coordinately regulated. Indeed, the number of RNA-binding proteins predicted to be encoded in the genome of kinetoplastids is unusually large, invoking the presence of unique RNA regulators dedicated to gene expression in these evolutionarily ancient organisms. Here, we report that a small CCCH zinc finger protein, TbZFP3, enhances development between life-cycle stages in Trypanosoma brucei. Moreover, we demonstrate that this protein interacts both with the translational machinery and with other small CCCH proteins previously implicated in trypanosome developmental control. Antibodies to this protein also co-immunoprecipitate EP procyclin mRNA and encode the major surface antigen of insect forms of T. brucei. Strikingly, although TbZFP3 is constitutively expressed, it exhibits developmentally regulated association with polyribosomes, and mutational analysis demonstrates that this association is essential for the expression of phenotype. TbZFP3 is therefore a novel regulator of developmental events in kinetoplastids that acts at the level of the post-transcriptional control of gene expression
Rational deployment of antimalarial drugs in Africa: should first-line combination drugs be reserved for paediatric malaria cases?
No full textArtemisinin-based combination therapy is exerting novel selective pressure upon populations of Plasmodium falciparum across Africa. Levels of resistance to non-artemisinin partner drugs differ among parasite populations, and so the artemisinins are not uniformly protected from developing resistance, already present in South East Asia. Here, we consider strategies for prolonging the period of high level efficacy of combination therapy for two particular endemicities common in Africa. Under high intensity transmission, two alternating first-line combinations, ideally with antagonistic selective effects on the parasite genome, are advocated for paediatric malaria cases. This leaves second-line and other therapies for adult cases, and for intermittent preventive therapy. The drug portfolio would be selected to protect the 'premier' combination regimen from selection for resistance, while maximising impact on severe disease and mortality in children. In endemic areas subject to low, seasonal transmission of Plasmodium falciparum, such a strategy may deliver little benefit, as children represent a minority of cases. Nevertheless, the deployment of other drug-based interventions in low transmission and highly seasonal areas, such as mass drug administration aimed to interrupt malaria transmission, or intermittent preventive therapy, does provide an opportunity to diversify drug pressure. We thus propose an integrated approach to drug deployment, which minimises direct selective pressure on parasite populations from any one drug component. This approach is suitable for qualitatively and quantitatively different burdens of malaria, and should be supported by a programme of routine surveillance for emerging resistanc
Corrigendum to “A Comparative analytical study for the different water pools present in alginate hydrogels:Qualitative vs. quantitative approaches” [Food hydrocolloids, (154), September 2024, 110159] (Food Hydrocolloids (2024) 154, (S0268005X24004338), (10.1016/j.foodhyd.2024.110159))
No full textThe authors regret forgetting to add the other affiliation of the corresponding author (Dr. Khaled O. Sebakhy) which was affiliated to the University of Groningen. The third affiliation is as follows: hEngineering and Technology Institute Groningen (ENTEG), University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands. The authors would like to apologise for any inconvenience caused. Sincerely yours, Dr. Khaled O. Sebakhy.</p
Draft genome of the filarial nematode parasite Brugia malayi
No full textParasitic nematodes that cause elephantiasis and river blindness threaten hundreds of millions of people in the developing world. We have sequenced the approximately 90 megabase (Mb) genome of the human filarial parasite Brugia malayi and predict approximately 11,500 protein coding genes in 71 Mb of robustly assembled sequence. Comparative analysis with the free-living, model nematode Caenorhabditis elegans revealed that, despite these genes having maintained little conservation of local synteny during approximately 350 million years of evolution, they largely remain in linkage on chromosomal units. More than 100 conserved operons were identified. Analysis of the predicted proteome provides evidence for adaptations of B. malayi to niches in its human and vector hosts and insights into the molecular basis of a mutualistic relationship with its Wolbachia endosymbiont. These findings offer a foundation for rational drug design
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