5,379 research outputs found
Sandra Cisneros's Woman Hollering Creek
No full textThis addition to Rodopi Presss Dialogue Series presents a collection of essays solely dedicated to Woman Hollering Creek (1991), Sandra Cisneross groundbreaking collection of short fiction stories and sketches. The emerging and veteran scholars who have.Intro -- SANDRA CISNEROS'S Woman Hollering Creek -- Contents -- General Editor's Preface -- Introduction -- I. Negotiating Borders: Issues of Sociocultural Cooptation -- Amphibious Women: The Complexity of Class in Sandra Cisneros's Woman Hollering Creek and Other Stories -- So You'll Know Who I Am: Inventory and Identity in Woman Hollering Creek and Other Stories -- The Chicana Trinity: Maternal Mestiza Consciousness in Woman Hollering Creek and Other Stories -- Author Dialogue -- II. Toys, Tiny Candies, and Telenovelas: Popular and Material Culture as Storytelling Agents -- Male and Female Roles in Mexican-American Society: Issues of Domestic Violence in "Woman Hollering Creek" -- Reading the Puns in "Barbie-Q" -- The Gummy Bears Speak: Articulating Identity in Sandra Cisneros's "Never Marry a Mexican" -- Author Dialogue -- III. Images of Masculinity -- "Are you my general?": Revising Representation in "Eyes of Zapata" -- Boys to Men: Redefining Masculinities in Woman Hollering Creek and Other Stories -- Author Dialogue -- IV. Images of Women: Role Expectations and Conflict -- Resemantization of Chicana Motherhood and Sexuality Through the Virgin of Guadalupe -- The Cries of La Llorona: Maternal Agency in "Woman Hollering Creek" -- Voicing Taboos in Sandra Cisneros's Woman Hollering Creek and Other Stories -- Author Dialogue -- About the Authors -- IndexThis addition to Rodopi Presss Dialogue Series presents a collection of essays solely dedicated to Woman Hollering Creek (1991), Sandra Cisneross groundbreaking collection of short fiction stories and sketches. The emerging and veteran scholars who have.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
Nonlinear computations underlying temporal and population sparseness in the auditory system of the grasshopper
No full textSparse coding schemes are employed by many sensory systems and implement efficient coding principles. Yet, the computations yielding sparse representations are often only partly understood. The early auditory system of the grasshopper produces a temporally and population-sparse representation of natural communication signals. To reveal the computations generating such a code, we estimated 1D and 2D linear-nonlinear models. We then used these models to examine the contribution of different model components to response sparseness.
2D models were better able to reproduce the sparseness measured in the system: while 1D models only captured 55% of the population sparseness at the network's output, 2D models accounted for 88% of it. Looking at the model structure, we could identify two types of computation, which increase sparseness. First, a sensitivity to the derivative of the stimulus and, second, the combination of a fast, excitatory and a slow, suppressive feature. Both were implemented in different classes of cells and increased the specificity and diversity of responses. The two types produced more transient responses and thereby amplified temporal sparseness. Additionally, the second type of computation contributed to population sparseness by increasing the diversity of feature selectivity through a wide range of delays between an excitatory and a suppressive feature.
Both kinds of computation can be implemented through spike-frequency adaptation or slow inhibition—mechanisms found in many systems. Our results from the auditory system of the grasshopper are thus likely to reflect general principles underlying the emergence of sparse representations
UBC's Humanities 101 Program - Interview with Sandra Delorme
No full textChildhood educational shortcomings didn't stop Sandra Delorme from becoming a published author later in life. She credits UBC's Humanities 101 program (but deserves most of the credit herself)
Efficient transformation of an auditory population code in a small sensory system
No full textOptimal coding principles are implemented in many large sensory systems. They include the systematic transformation of external stimuli into a sparse and decorrelated neuronal representation, enabling a flexible readout of stimulus properties. Are these principles also applicable to size-constrained systems, which have to rely on a limited number of neurons and may only have to fulfill specific and restricted tasks? We studied this question in an insect system—the early auditory pathway of grasshoppers. Grasshoppers use genetically fixed songs to recognize mates. The first steps of neural processing of songs take place in a small three-layer feed-forward network comprising only a few dozen neurons. We analyzed the transformation of the neural code within this network. Indeed, grasshoppers create a decorrelated and sparse representation, in accordance with optimal coding theory. Whereas the neuronal input layer is best read out as a summed population, a labeled-line population code for temporal features of the song is established after only two processing steps. At this stage, information about song identity is maximal for a population decoder that preserves neuronal identity. We conclude that optimal coding principles do apply to the early auditory system of the grasshopper, despite its size constraints. The inputs, however, are not encoded in a systematic, map-like fashion as in many larger sensory systems. Already at its periphery, part of the grasshopper auditory system seems to focus on behaviorally relevant features, and is in this property more reminiscent of higher sensory areas in vertebrates.</jats:p
Evolutionarily conserved coding properties of auditory neurons across grasshopper species
No full textWe investigated encoding properties of identified auditory interneurons in two not closely related grasshopper species (Acrididae). The neurons can be homologized on the basis of their similar morphologies and physiologies. As test stimuli, we used the species- specific stridulation signals of Chorthippus biguttulus, which evidently are not relevant for the other species, Locusta migratoria. We recorded spike trains produced in response to these signals from several neuron types at the first levels of the auditory pathway in both species. Using a spike train metric to quantify differences between neuronal responses, we found a high similarity in the responses of homologous neurons: interspecific differences between the responses of homologous neurons in the two species were not significantly larger than intraspecific differences (between several specimens of a neuron in one species). These results suggest that the elements of the thoracic auditory pathway have been strongly conserved during the evolutionary divergence of these species. According to the 'efficient coding' hypothesis, an adaptation of the thoracic auditory pathway to the specific needs of acoustic communication could be expected. We conclude that there must have been stabilizing selective forces at work that conserved coding characteristics and prevented such an adaptation
The Importance of Wishes: An Interview with Author Sandra Magsamen
No full textChildren’s author and illustrator Sandra Magsamen holds a beloved place in the hearts of library professionals who know the impact and power of her loving board and picture books. As the author and illustrator of more than sixty children’s and adult books, Magsamen, trained as an art therapist, hopes to create books that offer people a way to reach out and connect in a meaningful and expressive way with someone in their life, and indeed she accomplishes this with her endearing new release, I Wish Wish Wish for You
Author Meets Critics: Sandra Braman
No full textThe publication of Sandra Braman’s Change of State signals the importance of the topic of information policy to the field of information studies. It also illustrates both the power and necessity of the kind of inter-disciplinary analysis that characterizes the field. This panel will provide an opportunity for both structured debate and lively discussion around Change of State and the important arguments it contains. Perhaps the most important one that it makes is that “trends in information policy both manifest and trigger change in the nature of governance itself.” That is, Braman points to how information flows have radically altered the nature of the traditional nation-state and its ability to exercise power (or fails to, as the case may be).
Because of i-Schools’ strong connections with the professional world of information institutions, it is particularly important for graduates to understand the far-reaching implications of this argument. On a practical level, graduates need to become conversant with both the varied manifestations of information policy, and the mechanisms by which such policy is enacted. Change of State provides a highly useful synthesis of all the major debates in the field of information policy (including identity, immigration, innovation policy, etc.), organizing them into a comprehensive analytical framework, along with extensive bibliographic essays.
The format of this session will involve each speaker presenting a 15 minute paper which will discuss Change of State from their own disciplinary perspective. Prof. Braman will then respond to the papers. The presentations will be followed by a question and answer period with the audience. The goal is to offer both structured debate around key arguments presented in the book, while offering an opportunity for the audience to interact with the speakers. The speakers are all leaders in the field, well-informed of Dr. Braman’s work, and chosen with the goal of maximizing disciplinary perspectives (Lievrouw: communication policy; Mueller: political science; Jackson: science and technology studies).Submitted by Heekyung Choi ([email protected]) on 2010-03-11T15:43:29Z
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WC2_iconf08.doc: 30720 bytes, checksum: d09645278c62b44efffefccf4a01bae8 (MD5)Made available in DSpace on 2010-03-11T15:43:29Z (GMT). No. of bitstreams: 1
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Previous issue date: 2008-02-2
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The world of Sandra Cisneros
No full textTeaching guide about author, Sandra Cisneros, which includes excerpts of and a reader's guide for Cisneros' Caramelo; a reader's guide for juveniles; photographs of Cisneros; and a biography of Cisneros.UT Librarie
First person – Sandra Vidak
No full textABSTRACT
First Person is a series of interviews with the first authors of a selection of papers published in Journal of Cell Science, helping early-career researchers promote themselves alongside their papers. Sandra Vidak is the first author on ‘Nucleoplasmic lamins define growth-regulating functions of lamina-associated polypeptide 2α in progeria cells’, published in Journal of Cell Science. Sandra Vidak is a postdoctoral fellow in the lab of Tom Misteli at the National Cancer Institute, NIH, Bethesda, Maryland, USA, investigating how the impairment of protein quality control mechanisms contributes to the progression of the premature ageing disease Hutchinson–Gilford Progeria Syndrome (HGPS).</jats:p
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