74 research outputs found
The Psychology of Engagement with Indigenous Identities: A Cultural Perspective
(c) 2012 APA, all rights reserved. This article may not exactly replicate the final version published in the APA journal. It is not the copy of record.A questionnaire study among 124 students at Haskell Indian Nations University investigated the
hypothesis that engagement with Indigenous identityâassessed along 3 dimensions including
degree (identification scale), content (pan-ethnic or tribal nation), and context (reservation or
non-reservation)âcan serve as a psychological resource for well-being and liberation from
oppression. Consistent with this hypothesis, degree of identification was positively correlated
with community efficacy and perception of racism. Apparently inconsistent with this hypothesis,
degree of identification among students who had resided on a reservation was negatively
correlated with the social self-esteem subscale of the Current Thoughts Scale (Heatherton &
Polivy, 1991). Rather than evidence against the identity-as-resource hypothesis, this pattern may
reflect the cultural grounding of self-esteem and tools designed to measure it
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Open science, communal culture, and womenâs participation in the movement to improve science
Science is undergoing rapid change with the movement to improve science focused largely on reproducibility/replicability and open science practices. This moment of changeâin which science turns inward to examine its methods and practicesâprovides an opportunity to address its historic lack of diversity and noninclusive culture. Through network modeling and semantic analysis, we provide an initial exploration of the structure, cultural frames, and womenâs participation in the open science and reproducibility literatures (n = 2,926 articles and conference proceedings). Network analyses suggest that the open science and reproducibility literatures are emerging relatively independently of each other, sharing few common papers or authors. We next examine whether the literatures differentially incorporate collaborative, prosocial ideals that are known to engage members of underrepresented groups more than independent, winner-takes-all approaches. We find that open science has a more connected, collaborative structure than does reproducibility. Semantic analyses of paper abstracts reveal that these literatures have adopted different cultural frames: open science includes more explicitly communal and prosocial language than does reproducibility. Finally, consistent with literature suggesting the diversity benefits of communal and prosocial purposes, we find that women publish more frequently in high-status author positions (first or last) within open science (vs. reproducibility). Furthermore, this finding is further patterned by team size and time. Women are more represented in larger teams within reproducibility, and womenâs participation is increasing in open science over time and decreasing in reproducibility. We conclude with actionable suggestions for cultivating a more prosocial and diverse culture of science
Vascular density and phenotype around ductal carcinoma in situ (DCIS) of the breast
Up to 50% of recurrences of ductal carcinoma in situ of the breast are associated with invasive carcinoma but no pathological or molecular features have yet been found to predict for the development of invasive disease. For a tumour to invade, it requires the formation of new blood vessels. Previous studies have described a vascular rim around ducts involved by ductal carcinoma in situ, raising the possibility that the characteristics of periductal vascularisation may be important in determining transformation from in situ to invasive disease. Periductal vascular density and phenotype were determined using morphometry and a panel of anti-endothelial antibodies (von Willebrand factor, CD31, CD141 and CD34) and related to the presence of invasive carcinoma and other histological features. Compared to normal lobules, pure ductal carcinoma in situ exhibited a greater density of CD34+ and CD31+ vessels but a decrease in those that were immunopositive for vWF, indicating a difference in phenotype and in density. Ductal carcinoma in situ associated with invasive carcinoma showed a profile of vascular immunostaining similar to that of pure ductal carcinoma in situ but there were significantly greater numbers of CD34+ and CD141+ vessels and fewer staining for vWF. There was a significant negative correlation between vascular density and both the cross-sectional areas of the ducts involved and the extent of the necrosis of the tumour they contained. A correlation between vascular density and nuclear grade was also noted, being highest in the intermediate grade. The greater density of CD34+ and CD141+ vessels around ductal carcinoma in situ associated with invasive carcinoma could reflect a greater predisposition to invade but a direct effect of co-existent invasive carcinoma cannot entirely be ruled out in the present study. The relationship between vascular density, grade, duct size and nuclear grade suggests that periductal angiogenesis increases with tumour growth rate but is unable to keep pace with the most rapidly growing lesions
Evolution of two actin genes in the sea urchin Strongylocentrotus franciscanus
The complete nucleotide sequences of two chromosomally linked actin genes from the sea urchin Strongylocentrotus franciscanus are presented. The genes are separated by 5.7 kilobases, occur in the same transcriptional orientation, and contain introns in identical positions. The structures and nucleotide sequences of the two genes are extremely similar, suggesting that they arose through a recent duplication. Comparison of the nucleotide sequences of the genes allows inferences to be made about mutational mechanisms active since the duplication event. Whereas point mutations predominate in the coding regions, the introns and flanking DNA are more heavily influenced by a variety of events that cause simultaneous changes in short regions of DNA.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/48040/1/239_2005_Article_BF02101689.pd
Resilience to Discrimination Stress Across Ethnic Identity Stages of Development
Ethnic identity development may increase resilience to discrimination and prejudice, which are often common and stressful for ethnic minority adolescents. Based on ethnic identity development theory and resilience theory, we hypothesize that under high discrimination stress, ethnic affirmation and ethnic identity stage will have protective moderating effects on self-esteem and depressive symptoms. A cross-sectional self-report study with 125 ethnic minority adolescents (13â18 years) found that ethnic affirmation (pâ\u3câ.05) had protective effects on depressive symptoms (pâ\u3câ.05) and protective-enhancing effects on self-esteem at high levels of discrimination stress. Achieved ethnic identity stage (pâ\u3câ.05) had protective-stabilizing effects on self-esteem at high discrimination stress. Our findings demonstrate that the protective elements of ethnic identity are feeling positive about one\u27s ethnic group, having learned about one\u27s history, and having resolved conflicts about one\u27s ethnic group
[Photograph 2012.201.B1398.0619]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Rough Rider aircraft heads into heads into an Oklahoma thunderhead north of Enid.
Erasing and dehumanizing Natives to protect positive national identity: The Native mascot example
For individuals who view being American as central to their sense of self, the reality of Native oppression (e.g., genocide, police brutality) threatens their ability to maintain a positive national identity. We theorize that longâstanding narratives in American culture erase and dehumanize Natives, enabling nonâNatives to psychological distance and justify Native oppression as a means of protecting positive national identity. We illustrate this protective process using the example of Native mascots. We first demonstrate that Native mascots erase and dehumanize Natives and then illustrate how the use of Native mascots protects national identity. We conclude by calling for individualâ and institutionalâlevel changes to create a society free of harmful and toxic narratives and the practices that perpetuate these narratives.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/170309/1/spc312632_am.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/170309/2/spc312632.pd
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