Evaluation of advanced light scattering technology for microgravity experiments

The capabilities of modern light scattering equipment and the uses it might have in studying processes in microgravity are evaluated. Emphasis is on the resolution of polydisperse systems. This choice was made since a major use of light scattering was expected to be the study of crystal growth of macromolecules in low gravity environments. An evaluation of a modern photon correlation spectrometer and a Mie spectrometer is presented

Border Security: Understanding Threats at U.S. Borders

[Excerpt] The United States confronts a wide array of threats at U.S. borders, ranging from terrorists who may have weapons of mass destruction, to transnational criminals smuggling drugs or counterfeit goods, to unauthorized migrants intending to live and work in the United States. Given this diversity of threats, how may Congress and the Department of Homeland Security (DHS) set border security priorities and allocate scarce enforcement resources? In general, DHS’s answer to this question is organized around risk management, a process that involves risk assessment and the allocation of resources based on a cost-benefit analysis. This report focuses on the first part of this process by identifying border threats and describing a framework for understanding risks at U.S. borders. DHS employs models to classify threats as relatively high- or low-risk for certain planning and budgeting exercises and to implement certain border security programs. Members of Congress may wish to use similar models to evaluate the costs and benefits of potential border security policies and to allocate border enforcement resources. This report discusses some of the issues involved in modeling border-related threats

Synchronization universality classes and stability of smooth, coupled map lattices

We study two problems related to spatially extended systems: the dynamical stability and the universality classes of the replica synchronization transition. We use a simple model of one dimensional coupled map lattices and show that chaotic behavior implies that the synchronization transition belongs to the multiplicative noise universality class, while stable chaos implies that the synchronization transition belongs to the directed percolation universality class.Comment: 6 pages, 7 figure

Gender Nonconformity and the Stereotype Content Model

A recent increase in transgender visibility has highlighted gaps in the social psychology literature about attitudes and biases. There is a relatively large body of literature that examines people’s reactions to gender role violation, but little that examines reactions to gendered trait violation. To assess negative attitudes towards transgender and gender nonconforming people, this experiment asked participants to make attitude judgements (warmth and competence) about a series of gender stereotypic and counterstereotypic face-voice pairs. This procedure was based on the paradigm used to construct the Stereotype Content Model, which categorizes stereotypes/prejudice into four categories (paternalistic, contemptuous, envious, admirable). Participants also rated stimuli on gender using both a continuous (very masculine to very feminine) and categorical (male or female) scale. Overall, counterstereotypic face-voice combinations were rated less warm, but not necessarily less competent than stereotypic face-voice combinations. When plotted in the stereotype content model framework, stimuli that paralleled the gender cues of transfeminine people and non-male-passing transmasculine people were subject to contemptuous and envious prejudice respectively. This kind of prejudice is reflected in the discrimination that transgender people face, including their exclusion from employment and social welfare, as well as their position as a scapegoat for gender-based violence and other socio-political issues

Response to Nauenberg's "Critique of Quantum Enigma: Physics Encounters Consciousness"

Nauenberg's extended critique of Quantum Enigma rests on fundamental misunderstandings.Comment: To be published in Foundations of Physic