197 research outputs found
The effect of occlusion on the visual working memory pointer-system
No full textTo access its online representations, visual working memory (VWM) relies on a pointer-system that creates correspondence between objects in the environment with their memory representations. This pointer-system allows VWM to modify its representations using a process called updating. When the pointer is invalidated, however, VWM triggers a process called resetting in which the no longer relevant representation and pointer are replaced. Past studies used the contralateral delay activity (CDA) to differentiate between updating and resetting and found that resetting is followed by a drop in the CDA amplitude. The current study aimed to investigate the effects of occlusion on VWM representations and the resetting process across four experiments. Experiment 1 examined whether resetting occurs with occluded changes and compared the CDA of occluded versus visible objects. The results indicated a decline in CDA amplitude during occlusion, but it was unclear if resetting occurred when the change was occluded due to the lack of time-locked changes. To better isolate the resetting process, Experiment 2 used a brief occluder appearances (100 ms) and observed a CDA drop likely due to an ERP response to the sudden stimulus appearance. This drop occurred earlier than the resetting CDA drop and appeared even in conditions that did not trigger resetting, which indicates that it might be an ERP response to the short and sudden appearance of a stimulus. Experiment 3 further isolated this ERP response, confirming the early CDA drop as a reaction to the occluder's onset and offset. Experiment 4, which included occluders that did not flash to avoid ERP responses, found a CDA drop indicating that resetting can occur with inferred changes. These findings suggest that VWM maintains representations of occluded objects, and can update or reset these representations based on inferred changes, with brief stimuli eliciting ERP responses that affect CDA amplitude
Campus Author Recognition Program 2010 Reception
No full textThe Campus Author Recognition Program hosts an annual celebration highlighting the book publishing accomplishments of the University of Guelph community. The 2010 event included talks by Serge Desmarais, Associate Vice-President (Academic); Shani Mootoo, Fall 2010 Writer-in-residence; and Michael Ridley, Chief Librarian and CIO.McLaughlin Library; The University Bookstor
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Shani Mootoo: writing, difference and the Caribbean
No full textAn introduction to the journal is presented in which the author discusses various reports published within the issue including the essays of Donna McCormack on the story of Shani Mootoo's novel "Valmiki's Daughter," one by Rebecca Ashworth on "Cereus Blooms at Night" and one by Emily Taylor on Mootoo's work
Shani Mootoo: Writing, Difference and the Caribbean
No full textAn introduction to the journal is presented in which the author discusses various reports published within the issue including the essays of Donna McCormack on the story of Shani Mootoo's novel "Valmiki's Daughter," one by Rebecca Ashworth on "Cereus Blooms at Night" and one by Emily Taylor on Mootoo's work
Cultural Capital and Transnational Parenting: The Case of Ghanaian Migrants in the United States
No full textWhat does cultural capital mean in a transnational context? In this article, Cati Coe and Serah Shani illustrate through the case of Ghanaian immigrants to the United States that the concept of cultural capital offers many insights into immigrants' parenting strategies, but that it also needs to be refined in several ways to account for the transnational context in which migrants and their children operate. The authors argue that, for many immigrants, the folk model of success means that they seek for their children skills, knowledge, and ways of being in the world that are widely valued in the multiple contexts in which they operate. For Ghanaian migrants, parenting includes using social and institutional resources from Ghana as well as the United States. The multiplicity and contradictions in cultural capital across different social fields complicate their parenting “projects” and raise questions about the reproduction of social class through the intergenerational transmission of cultural capital.Peer reviewe
The finite Friedman-Stanley jumps: generic dichotomies for Borel homomorphisms
No full textFix or . We prove a dichotomy for Borel
homomorphisms from the -th Friedman-Stanley jump to an equivalence
relation which is classifiable by countable structures: if there is no
reduction from to , then in fact all Borel homomorphisms are very
far from a reduction. For this we use a different presentation of ,
equivalent up to Borel bi-reducibility, which is susceptible to Baire-category
techniques.
This dichotomy is seen as a method for proving positive Borel reducibility
results from . As corollaries we prove: (1) for ,
is in the spectrum of the meager ideal. This extends a result of Kanovei,
Sabok, and Zapletal for ; (2) is a regular equivalence
relation. This answers positively a question of Clemens; (3) for ,
the equivalence relations, classifiable by countable structures, which do not
Borel reduce are closed under countable products. This extends a
result of Kanovei, Sabok, and Zapletal for
And She Wrote Backwards: Same-Sex Love, Gender and Identity in Shani Mootoo’s work and her recent Valmiki’s Daughter
No full textThis article traces the representation of love, gender and national
identity in Shani Mootoo’s creative work in general and her most recent
novel Valmiki’s Daughter (2008) in particular. In all her work, Mootoo
describes the phenomenon of otherness as a part of the negotiating
process of the protagonists' selves.Challenging xenophobia, homophobia
and all forms of prejudices the author works with the concept of lesbian
and bisexual love, cross-racial relationships in order to write identity
and to create a home
And She Wrote Backwards: Same-Sex Love, Gender and Identity in Shani Mootoo’s work and her recent Valmiki’s Daughter
No full textThis article traces the representation of love, gender and national identity in Shani Mootoo’s creative work in general and her most recent novel Valmiki’s Daughter (2008) in particular. In all her work, Mootoo describes the phenomenon of otherness as a part of the negotiating process of the protagonists' selves.Challenging xenophobia, homophobia and all forms of prejudices the author works with the concept of lesbian and bisexual love, cross-racial relationships in order to write identity and to create a home
Challenging the Cultural Mosaic: Shani Mootoo\u27s "Out on Main Street"
No full textThe essay examines the short story “Out on Main Street“ (1993) by Caribbean-Canadian author Shani Mootoo as an example of fictional contestations of the official policy of multiculturalism in Canada, which has been a major discourse in the realm of cultural affairs in Canada since the Canadian Multiculturalism Act of 1988. Canadian multiculturalism is often critiqued as a token policy aiming at keeping non-‘white’ Canadians from the ‘white’ cultural center of Canadian society. The discourse of multiculturalism is often conceptualized by the spatial metaphor of the mosaic and thus implies rigid boundaries, in this case between ethno-cultural groups. Mootoo is read here as one among many contemporary non-‘white’ Canadian authors of fiction that draft alternative spatial orders to the cultural mosaic in their texts and thus offer ways of imagining Canadian society differently. 
Primary Peritoneal Serous Carcinoma in Men: A Rare and Non-BRCA-associated Entity.
No full textBackground: Primary peritoneal serous carcinoma
(PPSC) is a rare neoplasm. The paucity of reported cases
among men may provide insight to the cell of origin of PPSC.
Materials and Methods: A search for the ICD 0-3 code of
PPSC (C48.2) in the following datasets: the Israeli National
Cancer registry (INCR), the Surveillance, Epidemiology, and
End Results (SEER) database in the USA, Israeli male BRCA
carriers, male high-risk and BRCA carriers in a USA study,
and the Italian Study on Male Breast Cancer (MBC) were
performed. Results: In the INCR dataset, 220 entries for C48.2
code were noted, with only one male (male:female
ratio=0.0045). In the SEER dataset for histology codes of
papillary/serous/ adenocarcinoma, 2,673 cases were recorded,
with five males (male:female ratio=0.0018). None of the
recorded US or Italian male BRCA carriers or MBC, or
Israeli male BRCA carriers was diagnosed with PPSC.
Conclusion: PPSC is a rare neoplasm, seemingly not
associated with BRCA mutations in men, and fallopian tube
epithelial cell implants may contribute to its development
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