Miami University

About: Miami University is a education organization based out in Oxford, Ohio, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 9949 authors who have published 19598 publications receiving 568410 citations. The organization is also known as: Miami of Ohio & Miami-Ohio.

Severity of child sexual abuse and revictimization: the mediating role of coping and trauma symptoms

Abstract: Child sexual abuse (CSA) has consistently been associated with the use of avoidant coping; these coping methods have been associated with increased trauma symptoms, which have, in turn, been linked to increased risk for adult sexual revictimization. Given these previous findings, the purpose of the current study was to test a model that conceptualized the relationships among these variables. Specifically, CSA severity was conceptualized as leading to the use of avoidant coping, which was proposed to lead to maintenance of trauma symptoms, which would, in turn, impact severity of revictimization indirectly. This comprehensive model was tested in a cross-sectional study of a large, geographically diverse sample of college women. Participants were 99 female undergraduates classified as having experienced CSA who completed measures of abuse history, coping style, current levels of trauma symptoms, and adult sexual revictimization. Multivariate path analysis indicated that the data fit the hypothesized model for verbally coercive, but not physically aggressive, revictimization. Specifically, increased CSA severity was associated with the use of avoidant coping, which, in turn, predicted greater levels of trauma symptomatology and severity of sexual coercion in adulthood. Although cross-sectional in nature, findings from this study suggest that coping strategies and trauma symptoms may represent modifiable factors that place women at increased risk for verbally coercive sexual revictimization.

Phytoplankton primary production and photosynthetic parameters in reservoirs along a gradient of watershed land use

Abstract: We investigated how watershed land use (a gradient of agricultural vs. forested land) relates to phytoplankton primary production (PPr) and photosynthetic parameters in 12 reservoirs in Ohio and examined spatial variation in these parameters. Shallow sites near stream inflows had higher light attenuation, total phosphorus (TP), chlorophyll, nonvolatile suspended solids (NVSS), light-saturated photosynthesis (P ), and volumetric PPr than deeper sites near B m dam outflows, but areal PPr and the initial slope of the photosynthesis‐irradiance curve ( a B ) were not significantly different between sites. Mean mixed layer irradiance and the severity of light limitation did not differ between sites because shallower depths compensated for higher light attenuation at inflow sites. Watershed land use (percent agriculture) was only weakly (but significantly) related to mean annual PPr, TP, and chlorophyll, but there was a well-defined upper limit to the effect of land use on all three of these parameters. Multiple regression showed that inclusion of additional watershed factors (the ratio of watershed land area to reservoir volume and the ratio of cropland area to number of livestock) greatly increased the variance explained compared to land use alone. TP and chlorophyll were highly correlated with each other and with PPr. Comparison of our TP‐chlorophyll, TP‐PPr, and chlorophyll‐PPr regressions with those of other studies suggests that reservoirs have lower PPr per unit TP than natural lakes, probably because of lower light intensity and higher concentrations of nonalgal P in reservoirs.

Morphology and emplacement of flows from the Deccan Volcanic Province, India

Abstract: The present study is probably the first of its kind in the Deccan Volcanic Province (DVP) that deals in detail with the morphology and emplacement of the Deccan Trap flows, and employs modern terminology and concepts of flow emplacement. We describe in detail the two major types of flows that occur in this province. Compound pahoehoe flows, similar to those in Hawaii and the Columbia River Basalts (CRB) constitute the older stratigraphic Formations. These are thick flows, displaying the entire range of pahoehoe morphology including inflated sheets, hummocky flows, and tumuli. In general, they show the same three-part structure associated with pahoehoe flows from other provinces. However, in contrast to the CRB, pahoehoe lobes in the DVP are smaller, and hummocky flows are quite common. 'Simple' flows occur in the younger Formations and form extensive sheets capped by highly vesicular, weathered crusts, or flow-top breccias. These flows have few analogues in other provinces. Although considered to be a'a flows by previous workers, the present study clearly reveals that the simple flows differ considerably from typical a'a flows, especially those of the proximal variety. This is very significant in the context of models of flood basalt emplacement. At the same time, they do not display direct evidence of endogenous growth. Understanding the emplacement of these flows will go a long way in determining whether all extensive flows are indeed inflated flows, as has recently been postulated.