Probing High Parton Densities at Low-xx in d+Au Collisions at PHENIX Using the New Forward and Backward Muon Piston Calorimeters

The new forward Muon Piston Calorimeters allow PHENIX to explore low-$x$ parton distributions in d+Au collisions with hopes of observing gluon saturation. We present a two-particle azimuthal $\Delta \phi$ correlation measurement made between a mid-rapidity particle ($|\eta_1| < 0.35$) and a forward $\pi^0$ ($3.1 < \eta_2 < 3.9$) wherein we compare correlation widths in d+Au to p+p and compute $I_{dA}$.Comment: 4 pages, 3 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennesse

Iridescence from total internal reflection at 3D microscale interfaces: mechanistic insights and spectral analysis

This report describes the experimental investigation and optical modeling of the structural coloration produced from total internal reflection interference within 3D microstructures. Ray tracing simulations coupled with color visualization and spectral analysis techniques are used to model, examine, and rationalize the iridescence generated for a range of micro-geometries, including hemicylinders and truncated hemispheres, under varying illumination conditions. An approach to deconstruct the observed iridescence and complex far-field spectral features into its elementary components and systematically link them to ray trajectories that emanate from the illuminated microstructures is demonstrated. The results are compared with experiments, wherein microstructures are fabricated with methods such as chemical etching, multiphoton lithography, and greyscale lithography. Microstructure arrays patterned on surfaces with varying orientation and size lead to unique color-traveling optical effects and highlight opportunities for how total internal reflection interference can be used to create customizable reflective iridescence. The findings herein provide a robust conceptual framework for rationalizing this multibounce interference mechanism and establish approaches for characterizing and tailoring the optical and iridescent properties of microstructured surfaces

Invisible Wounds of War: Psychological and Cognitive Injuries, Their Consequences, and Services to Assist Recovery

Since October 2001, approximately 1.64 million U.S. troops have been deployed for Operations Enduring Freedom and Iraqi Freedom (OEF/OIF) in Afghanistan and Iraq. Early evidence suggests that the psychological toll of these deployments may be disproportionately high compared with the physical injuries of combat. Research has focused primarily on three conditions: post-traumatic stress disorder (PTSD), depression, and traumatic brain injury (TBI). Karney et al. review the empirical literature on these three conditions, focusing on research that supports projections about the likely outcomes for OEF/OIF veterans and their families. These include an increased risk of suicide, substance abuse, and cardiovascular disease. Mental health conditions among veterans are also associated with reduced work productivity and future job prospects and may be a precursor to homelessness. Post-combat mental health disorders also affect servicemembers' spouses and children: For example, each of the three disorders has been linked to intimate partner violence and divorce. The authors also emphasize that it is common for veterans with one of the three conditions -- PTSD, depression, or TBI -- to also develop another of the three, and such individuals tend to experience more severe symptoms, poorer treatment outcomes, and more disability in social and occupation function. Karney et al. conclude with two series of recommendations: one for future research, and one for policy and interventions to mitigate the consequences of post-combat mental health conditions

De novo putative loss-of-function variants in TAF4 are associated with a neuro-developmental disorder.

TATA-binding protein associated factor 4 (TAF4) is a subunit of the Transcription Factor IID (TFIID) complex, a central player in transcription initiation. Other members of this multimeric complex have been implicated previously as monogenic disease genes in human developmental disorders. TAF4 has not been described to date as a monogenic disease gene. We here present a cohort of eight individuals, each carrying de novo putative loss-of-function (pLoF) variants in TAF4 and expressing phenotypes consistent with a neuro-developmental disorder (NDD). Common features include intellectual disability, abnormal behavior, and facial dysmorphisms. We propose TAF4 as a novel dominant disease gene for NDD, and coin this novel disorder “TAF4-related NDD” (T4NDD). We place T4NDD in the context of other disorders related to TFIID subunits, revealing shared features of T4NDD with other TAF-opathies.</p