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New York City, NY, United States

Marymount Manhattan College is a coeducational, independent, private liberal arts college located in Manhattan, New York City. The mission of the College is to educate a socially and economically diverse student body by fostering intellectual achievement and personal growth and by providing opportunities for career development. Enrollment consists of 1640 undergraduates, with women making up 76.1% and men 23.9%. Wikipedia.

Leri A.C.,Princeton University | Leri A.C.,Marymount Manhattan College | Myneni S.C.B.,Princeton University | Myneni S.C.B.,Lawrence Berkeley National Laboratory
Global Biogeochemical Cycles | Year: 2010

Research in the last 20 years has shown that chlorine undergoes transformations between inorganic and organic forms as part of a complex biogeochemical cycle in terrestrial systems. Natural organochlorine production appears to be associated with the decomposition of plant material on the soil surface, though the chlorine cycle budget implies that a proportion of natural organochlorine enters soil through plant litter and atmospheric deposition as well. Organochlorine compounds may form through biotic and abiotic pathways, but the rates and magnitude of production in the field remain undefined. We have performed a time-dependent trace of chlorine concentration through forest ecosystems, revealing distinct fractions of naturally produced organochlorine in plant biomass. Aliphatic organochlorine constitutes an intrinsic component of healthy leaves that persists through senescence and humification of the plant material, making a substantial contribution to the pool of soil organochlorine. Plant leaves also contain soluble aromatic organochlorine compounds that leach from leaf litter during early decay stages. As decay progresses, high concentrations of insoluble aromatic organochlorine accrue in the humus, through de novo production as well as adsorption. The rates of aromatic organochlorine production and degradation vary seasonally and conversely. This study presents the first unambiguous evidence that there exist multiple pools of chlorinated organic matter in the soil environment and that leaf litter deposition makes a significant and refractory contribution to the soil organochlorine pool, providing key insights into the biogeochemical chlorine cycle. © 2010 by the American Geophysical Union. Source

Pham D.N.,Marymount Manhattan College
Applied Categorical Structures | Year: 2014

In this paper, we show that G-Frobenius algebras (for Ga finite groupoid) correspond to a particular class of Frobenius objects in the representation category of D(k[G]), where D(k[G]) is the Drinfeld double of the quantum groupoid k[G] (Nikshych et al. 2000). © 2013 Springer Science+Business Media Dordrecht. Source

Dixon J.,Marymount Manhattan College
Research on Aging | Year: 2012

Older adults are often plagued with the stereotype that they have outgrown any semblance of sexual identity. This stereotype is prominent in the workplace, as older coworkers are assumed to be past the stage in their lives where sexuality is an aspect of one's identity. The present study explored how age was a central factor in describing sexuality in the workplace. More specifically, active interviews unearthed age of organization members as a prominent rationale for why sexual discussion is prohibited in the workplace. Results indicated a discursive divide separating older workers from their younger counterparts, reifying the notion that older coworkers are largely asexual. Implications are provided and include an opportunity to see age at the intersection of sexuality as a discursive dividing line in the workplace. © The Author(s) 2012. Source

Leri A.C.,Marymount Manhattan College | Myneni S.C.B.,Princeton University | Myneni S.C.B.,Lawrence Berkeley National Laboratory
Geochimica et Cosmochimica Acta | Year: 2012

Recent studies have shown that bromine undergoes biogeochemical cycling involving natural formation and degradation of organobromine compounds in marine systems. In the terrestrial environment, where background bromine levels tend to be low, the biogeochemistry of this element remains largely unexamined. We traced the path of bromine through plant growth, senescence, and decay of leaf litter on the forest floor. Using sensitive X-ray spectroscopic techniques, we show that all bromine in humified plant material, organic-rich surface soils, and isolated humic substances is bonded to carbon. Analysis of bromide-enriched plants suggests that bromide absorbed by the growing plants ultimately converts to organobromine when the plant litter decays. Application of isolated chloroperoxidase, a halogenating enzyme, to healthy plant material results in extensive bromination, with organobromine formed preferentially over organochlorine. The relative ease of bromide oxidation appears to promote biogeochemical transformations of Br from inorganic to organic forms, leading to its incorporation into soil organic matter through enzymatic processes related to plant litter decomposition. In combination with low concentration and susceptibility to leaching and plant uptake, natural bromination processes lead to the exhaustion of inorganic bromide in surface soils, making organic matter a reservoir of bromine in the terrestrial environment. This study provides the first detailed look into the terrestrial bromine cycle and lays the foundation for future studies of natural organobromine degradation, which may shed light on the fate of anthropogenic organobromine pollutants in the soil environment. © 2011 Elsevier Ltd. Source

Doherty E.F.,Marymount Manhattan College | MacGeorge E.L.,Purdue University
Qualitative Health Research | Year: 2013

Bipolar disorder is a mental illness with a significant negative impact on quality of life. People with bipolar disorder benefit when family and friends provide social support, but quantity and quality of support are often lacking. We present an exploration of the types of behaviors from support network members that young adults (ages 18 to 30) with bipolar disorder perceived as helpful in coping with the illness. We conducted semistructured ethnographic interviews with young adults (N = 30) with bipolar disorder and analyzed them using qualitative coding methods. We found that young adults with bipolar disorder considered a wide variety of emotion-focused and instrumental behaviors helpful, with some behaviors tailored to the unique characteristics of the illness. These findings also indicate the types of behavior support providers might use to help network members cope with bipolar disorder, and the research needed to better understand social support in the context of chronic mental illness. © The Author(s) 2012. Source

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