197,197 research outputs found
Nella Larsen's Letters, 1917-1935
No full text_Nella Larsen's Letters, 1917-1935_ is the first comprehensive collection of Larsen's letters. It includes letters from a variety of archival collections, and many letters are here published for the first time. The volume also comprises two critical essays on Larsen's work and a few miscellaneous materials, including a previously unpublished interview with Marion L. Starkey and the 1931 reader's report on Larsen's "Mirage.
Introduction to _Nella Larsen's Latters, 1917-1935_
No full textThe essay discusses the relevance of Larsen's correspondence with Carl Van Vechten, Dorothy Peterson, and other intellectuals of her time.
The editors foreground how Larsen's letters are revelatory of her thoughts and concerns about her writing and the creative process. They also emphasize the importance of the 1931 reader's report on Larsen's unpublished manuscript "Mirage," since it dispels the erroneous commonplace tha Larsen's stopped writing after "Sanctuary" (1930)
"Reading Black Women Writers"
No full textThe essay discusses Barbara Christian's literary critical work, focusing on her methodology and on the international impact of her pioneering articulation of innovative readings of the works of writers who would later become generally celebrated
Postfazione di _Sabbie mobili_
No full textRistampa del volume pubblicato nel 1999. Postfazione e cura della prima traduzione italiana di
_Quicksand_, romanzo originariamente pubblicato nel
1928. La postfazione offre un'analisi critico-testuale e situa il volume all’interno del contesto storico-letterario del
modernismo
Narrazione della vita di Frederick Douglass: Introduzione
No full textAnalisi critica delle strategie di scrittura di Frederick Douglass. Esame dello stato dell'arte in relazione all'ampia letteratura scientifica su Douglass
Study of Techniques For Reliable Data Transmission In Wireless Sensor Networks
No full textThis thesis addresses the problem of traffic transfer in wireless sensor networks (WSN). In such networks, the foremost challenge in the design of data communication techniques is that the sensor's transceiver circuitry consumes the major portion of the available power. Thus, due to stringent limitations on the nodes' hardware and power resources in WSN, data transmission must be power-efficient in order to reduce the nodes' power consumption, and hence to maximize the network lifetime while satisfying the required data rate. The transmit power is itself under the influence of data rate and source-destination distance. Thanks to the dense deployment of nodes in WSN, multi-hop communication can be applied to mitigate the transmit power for sending bits of information, i.e., gathered data by the sensor nodes to the destination node (gateway) compared to single-hop scenarios. In our approach, we achieve a reasonable trade-off between power-efficiency and transmission data rate by devising cooperative communication strategies through which the network traffic (i.e. nodes' gathered information) is relayed hop-by-hop to the gateway. In such strategies, the sensor nodes serve as data originator as well as data router, and assist the data transfer from the sensors to the gateway. We develop several data transmission schemes, and we prove their capability in transmitting the data from the sensor nodes at the highest possible rates allowed by the network limitations. In particular, we consider that (i) network has linear or quasi-linear topology, (ii) nodes are equipped with half-duplex radios, implying that they cannot transmit and receive simultaneously, (iii) nodes transmit their traffic at the same average rate. We compute the average data rate corresponding to each proposed strategy. Next, we take an information-theoretic approach and derive an upper bound to the achievable rate of traffic transfer in the networks under consideration, and analyze its tightness. We show that our proposed strategies outperform the conventional multi-hop scheme, and their average achievable rate approaches the upper bound at low levels of signal to noise ratio
African American Novels and the New Slavery in the New South
No full textThe essay offers a new literary critical approach to early twentieth-century American novels that challenged the prevailing myth of the “New South” by exposing its analogies with slavery. It focuses on two complex and experimental novels published in 1905: Sutton E. Griggs’s The Hindered Hand and Charles W. Chesnutt’s The Colonel’s Dream. The essay examines their oft-underestimated impact on contemporaneous best-selling novelists like Thomas Dixon, Jr. and also foregrounds how the silencing pressures of the prevailing culture of Jim Crow affected the publication history of coeval works by Mark Twain and Upton Sincair
Short-term forecasting of solar energetic ions on board LISA
No full textSolar energetic particles (SEPs) pose a hazard to manned and unmanned space missions. Moreover, in LISA (Laser Interferometer Space Antenna) and its precursor mission LISA Pathfinder (LISA-PF) the free-fall test-masses are charged by galactic and solar energetic particles. This process generates spurious forces on the test masses which appears as significant levels of noise in the experiments. It was shown that relativistic solar electron detection can be used for up-to-one-hour forecasting of incoming energetic ions at 1 AU. Contemporary observations of solar electrons, protons and helium nuclei on board LISA will allow us to forecast and investigate the characteristics of SEPs over small steps in longitude
The Strange Career of a Black Utopia: Ethiopia, The Land of Promise. A Book with a Purpose, by Charles Henry Holmes (aka Clayton Adams)
No full textThis essay presents archival information about Charles H. Holmes and argues that his understudied novel, Ethiopia, The Land of Promise (1917), represents an important chapter in the history of Afrofuturism and American speculative fiction. The literary critical relevance of Ethiopia emerges forcefully from Holmes’s intertextual dialogue with other utopian and science fiction authors, such as Martin R. Delany, Sutton E. Griggs, Pauline E. Hopkins, Frances E.W. Harper, Edward Bellamy, and W.E.B. Du Bois. Holmes’s critique of Jim Crow segregation enables the articulation of a “distinctly revolutionary” project for African American futurity
Nella Larsen e Alice Walker: due classici americani ritrovati.
No full textA comparative, critically updated review of the new Italian translations of Nella Larsen's Passing and Alice Walker's The Third Life of Grange Copeland
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