Film Review: Performing the Border, Writing Desire, Remote Sensing, and Europlex

Review of Performing the Border, Writing Desire, and Remote Sensing (Ursula Biemann, filmmaker) and Europlex (Ursula Biemann, filmmaker, in collaboration with Angela Sanders

Conceptualizing world art studies: an introduction

Item does not contain fulltextThis special issue aims to contribute to the conceptualization of World Art Studies. The first two articles offer evaluative views from art history, the third and fourth perspectives from anthropology, the fifth and sixth arguments for including neo-evolutionary and neurological studies in understanding world art as a universal human behavior

Genetically modified crops and aquatic ecosystems: considerations for environmental risk assessment and non-target organism testing

Environmental risk assessments (ERA) support regulatory decisions for the commercial cultivation of genetically modified (GM) crops. The ERA for terrestrial agroecosystems is well-developed, whereas guidance for ERA of GM crops in aquatic ecosystems is not as well-defined. The purpose of this document is to demonstrate how comprehensive problem formulation can be used to develop a conceptual model and to identify potential exposure pathways, using Bacillus thuringiensis (Bt) maize as a case study. Within problem formulation, the insecticidal trait, the crop, the receiving environment, and protection goals were characterized, and a conceptual model was developed to identify routes through which aquatic organisms may be exposed to insecticidal proteins in maize tissue. Following a tiered approach for exposure assessment, worst-case exposures were estimated using standardized models, and factors mitigating exposure were described. Based on exposure estimates, shredders were identified as the functional group most likely to be exposed to insecticidal proteins. However, even using worst-case assumptions, the exposure of shredders to Bt maize was low and studies supporting the current risk assessments were deemed adequate. Determining if early tier toxicity studies are necessary to inform the risk assessment for a specific GM crop should be done on a case by case basis, and should be guided by thorough problem formulation and exposure assessment. The processes used to develop the Bt maize case study are intended to serve as a model for performing risk assessments on future traits and crops. -® 2011 The Author(s