Learn More
OBJECTIVE This study examines the impact of indebtedness on depressive symptomatology, anxiety, and anger. METHOD We use data from a two-wave panel study of adults in Miami-Dade County. The analytic sample consists of 1,463 mostly older respondents with valid data on all study measures, including education, income, occupational status, wealth, and debt.(More)
We describe a simple process for the fabrication of ultrathin, transparent, optically homogeneous, electrically conducting films of pure single-walled carbon nanotubes and the transfer of those films to various substrates. For equivalent sheet resistance, the films exhibit optical transmittance comparable to that of commercial indium tin oxide in the(More)
An electrochromic material is one where a reversible color change takes place upon reduction (gain of electrons) or oxidation (loss of electrons), on passage of electrical current after the application of an appropriate electrode potential. In this review, the general field of electrochromism is introduced, with coverage of the types, applications, and(More)
This study examines the gender difference in educational expectations among black, white, and Hispanic high school seniors in 1972 and 1992. We link gender-related changes in expectations to students' perceived parental encouragement for higher education and access to college-preparatory coursework, and then examine the influence of expectations on(More)
The development of invasive, rehabilitative neuroprosthetics for humans requires reliable neural probes that are capable of recording large ensembles of neurons for a long period of time. Recent advances in the development of neuroprosthetics in animals and humans have shown that communication and control can be directly derived from the central nervous(More)
A review of electrochromic (EC) polymers and their applications in absorption/transmission, reflective, and patterned electrochromic devices (ECDs) is presented. Fundamental properties of EC materials such as optical contrast, coloration efficiency, switching speed, and stability are described along with the commonly used characterization methods. The(More)
Tailor-made additives, which are molecules that share the same molecular structure as a parent molecule with only slight structural variations, have previously been demonstrated as a useful means to control crystallization dynamics in solution. For example, tailor-made additives can be added to solutions of a crystallizing parent molecule to alter the(More)
Organic optoelectronic polymers have evolved to the point where fine structural control of the conjugated main chain, coupled with solubilizing and property-modifying pendant substituents, provides an entirely new class of materials. Conjugated polyelectrolytes (CPEs) provide a unique set of properties, including water solubility and processability,(More)
A key advantage of bulk nanoscale materials in applications ranging from energy storage to chemical catalysis is their inherent high surface area. Single-wall carbon nanotube films possess the additional advantages of high electrical conductivity and robust mechanical integrity. Nevertheless the flexibility of the individual nanotubes and their affinity for(More)
We present a plasmon-active hybrid nanomaterial design with electrochemical tunability of the localized surface plasmon resonances. The plasmonic-active nanostructures are composed of silver nanocube aggregates embedded into an electrochromic polymer coating on an indium tin oxide electrode with the nanocube aggregation controlled by the surface pressure.(More)