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New Philadelphia, PA, United States

Chestnut Hill College is a coeducational Roman Catholic college in the Chestnut Hill section of Philadelphia, Pennsylvania, USA. It was founded in 1924, as a women's college, by the Sisters of St. Joseph. It was originally named Mount Saint Joseph College. In 1980, the college established a coeducational graduate education program and started to admit male students to its undergraduate programs in 2003. As of 2012, a total of 2,318 students were enrolled in Chestnut Hill College's three constituent schools, with fewer than 900 as undergraduates. Wikipedia.

Jiang H.,Chestnut Hill College
IEEE Transactions on Pattern Analysis and Machine Intelligence | Year: 2011

A novel consistent max-covering method is proposed for human pose estimation. We focus on problems in which a rough foreground estimation is available. Pose estimation is formulated as a jigsaw puzzle problem in which the body part tiles maximally cover the foreground region, match local image features, and satisfy body plan and color constraints. This method explicitly imposes a global shape constraint on the body part assembly. It anchors multiple body parts simultaneously and introduces hyperedges in the part relation graph, which is essential for detecting complex poses. Using multiple cues in pose estimation, our method is resistant to cluttered foregrounds. We propose an efficient linear method to solve the consistent max-covering problem. A two-stage relaxation finds the solution in polynomial time. Our experiments on a variety of images and videos show that the proposed method is more robust than previous locally constrained methods. © 2011 IEEE.

Kane G.C.,Chestnut Hill College | Alavi M.,Emory University | Labianca G.,University of Kentucky | Borgatti S.P.,University of Kentucky
MIS Quarterly: Management Information Systems | Year: 2014

In recent years, we have witnessed the rapid proliferation and widespread adoption of a new class of information technologies, commonly known as social media. Researchers often rely on social network analysis (SNA) when attempting to understand these technologies, often without considering how the novel capabilities of social media platforms might affect the underlying theories of SNA, which were developed primarily through studies of offline social networks. This article outlines several key differences between traditional offline social networks and online social media networks by juxtaposing an established typology of social network research with a well-regarded definition of social media platforms that articulates four key features. The results show that at four major points of intersection, social media has considerable theoretical implications for SNA. In exploring these points of intersection, this study outlines a series of theoretically distinct research questions for SNA in social media contexts. These points of intersection offer considerable opportunities for researchers to investigate the theoretical implications introduced by social media and lay the groundwork for a robust social media agenda potentially spanning multiple disciplines.

Annunziato A.T.,Chestnut Hill College
Biochimica et Biophysica Acta - Gene Regulatory Mechanisms | Year: 2012

It has been over 35. years since the acceptance of the "chromatin subunit" hypothesis, and the recognition that nucleosomes are the fundamental repeating units of chromatin fibers. Major subjects of inquiry in the intervening years have included the steps involved in chromatin assembly, and the chaperones that escort histones to DNA. The following commentary offers an historical perspective on inquiries into the processes by which nucleosomes are assembled on replicating and nonreplicating chromatin. This article is part of a Special Issue entitled: Histone chaperones and Chromatin assembly. © 2011 Elsevier B.V.

The early-life social environment has profound effects on brain development and subsequent expression of social behavior. Oxytocin and vasopressin are expressed and released in the brain and are important regulators of social behavior. Accordingly, the early social environment may alter social behaviors via changes in the oxytocin and/or vasopressin systems. To test this hypothesis, and to gain mechanistic insights, rodent models mimicking either a deprived (e.g. maternal separation) or enriched (e.g. neonatal handling) early social environment have been utilized. Findings indeed show that differences in the quality of the early social environment are associated with brain region-specific alterations in oxytocin and vasopressin expression and oxytocin receptor and vasopressin 1a receptor binding. Early social environment-induced changes in oxytocin and vasopressin systems were associated with changes in several forms of social behavior, including maternal care, aggression, play-fighting, and social recognition. First studies provide evidence for a causal link between altered vasopressin responsiveness and impairments in social recognition in rats exposed to maternal separation and a role for epigenetic mechanisms to explain persistent increases in vasopressin expression in mice exposed to maternal separation. Overall, initial findings suggest that oxytocin and vasopressin systems may mediate early social environment-induced alterations in social behavior. Additional comprehensive studies will be necessary to advance our understanding to what extent changes in oxytocin and vasopressin underlie early social environment-induced alterations in social behavior.This article is part of a Special Issue entitled Oxytocin, Vasopressin, and Social Behavior. © 2011 Elsevier Inc.

This article reports on a small set of community-based participatory projects designed collaboratively by and for survivors directly affected by armed conflict in Guatemala and some of their family members in the North (i.e., in New Orleans, Louisiana, and New England). Local protagonists deeply scarred by war and gross violations of human rights drew on indigenous beliefs and practices, creativity, visual performance arts, and participatory and action research strategies to develop and perform collaborative communitybased actions. These initiatives constitute a people's psychosocial praxis. Through their individual and collective narratives and actions, Mayan and African American women and Latinas perform a psychology from the "two-thirds world," one that draws on postcolonial theory and methodology to retheorize trauma and resilience. These voices, creative representations, and actions of women from the Global South transform earlier, partial efforts to decenter EuroAmerican epistemologies underlying dominant models of trauma that reduce complex collective phenomena to individual pathology, refer to continuous trauma as past, are ahistorical, and universalize culturally particular realities.

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