A multicomponent intervention to prevent partner violence within an existing service intervention.

Intimate partner violence (IPV) is an enormous public health problem that results in injury, health problems, and substantial cost to society. Despite having a grasp of the scope of IPV, public health officials and workers know little about how to prevent it. The few empirically established primary prevention programs consist of school-based curricula targeting high school students. Additional venues for IPV prevention are needed, especially for women at elevated risk. This article describes a preventive intervention for IPV consisting of three components: (a) a structured assessment for IPV; (b) a brochure-driven intervention for women experiencing IPV, including safety planning, referrals, and advocacy; and (c) a skills-based curriculum delivered to all participants that focuses on improving relationship decisions and outcomes. While this intervention could potentially be delivered in a multitude of clinical settings, this article focuses on its delivery within a home visitation program for young, disadvantaged new mothers, a population known to be at increased risk for IPV. If found to be effective, this intervention could be incorporated into many service delivery systems, with broad-based clinical implications for IPV prevention. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Parallel-Fed Traveling Wave Photodetector for > 100-GHz Applications

A fully packaged traveling wave photodetector (TWPD) with monolithically integrated optical power splitter for high-speed high-power applications in excess of 100 GHz is demonstrated. The detector module provides a responsivity of 0.24 A/W with a polarization dependence of only 0.2 dB at 1.55 mum wavelength and is suitable for the detection of RZ data rates in excess of 80 Gbit/s with unsaturated peak voltages of >0.5 V. Chip-based measurements show a broadband impedance match, a 3 dB bandwidth of 80 GHz and a maximum electrical output power of -2.5 dBm at 150 GHz.     

Stability of a class of linear switching systems with time delay

We consider a switching system composed of a finite number of linear delay differential equations (DDEs). It has been shown that the stability of a switching system composed of a finite number of linear ordinary differential equations (ODEs) may be achieved by using a common Lyapunov function method switching rule. We modify this switching rule for ODE systems to a common Lyapunov functional method switching rule for DDE systems and show that it stabilizes our model. Our result uses a Riccati-type Lyapunov functional under a condition on the time delay.     

Instrumentation for high-speed digital recording of switchingsurges

Three sophisticated monitoring systems were developed and used to make unattended measurements of over 600 switching surges on 33 motors at 11 different utilities. The authors describe in detail one of the recording systems which relies on ECL (emitted coupler logic) digital electronics and high-speed commercial digitizers to measure the multiple, fast-risetime, high-voltage surges typically created by vacuum circuit breaker switching operations. This three-channel monitoring system is capable of digitizing a voltage waveform at 5 ns intervals and has 64 K bytes of memory per channel. The digitizer sampling rate is varied in real time to allow high-speed recording of up to 256 transients. Wideband capacitive voltage dividers with a flat response from below power frequencies to 20 MHz were designed to bolt directly onto the motor terminals and were used to couple the surges to the monitoring system. Results from typical field measurements made with this system on motors controlled by vacuum switchgear are also reported     

Wideband gain flattened erbium fibre amplifier using a photosensitive fibre blazed grating

An erbium fibre amplifier with a highly flattened gain spectrum is demonstrated for the first time using an all fibre photosensitive Bragg grating. An ASE spectrum flattened to within +or-0.5 dB over a bandwidth of 35 nm in the 1550 nm window is achieved with a 3 mm long radiation coupling Bragg fibre grating.<>     

Influence of growth temperatures on the photoresponse of low temperature grown GaAs:As p-i-n diodes

We report a study of the sub-bandgap photoresponse of p-i-n photodetectors with 1 μm low-temperature intrinsic layers, and its dependence on the growth temperature of the intrinsic layer. Diodes with intrinsic layers grown near 250°C exhibit the highest photoresponse. The photoresponse decreases gradually as the growth temperature is raised above 250°C. For growth temperatures at or below 200°C, a drastic drop in the photoresponse is observed, along with degradation of crystal quality in the material. The extracted internal Schottky barrier heights are found to be within the range 0.7–0.8 eV.     

Statistical simulation of random dopant induced threshold voltage fluctuations for 35 nm channel length MOSFET

Intrinsic parameter fluctuations have become a very important problem for the scaling and integration of future generations of nano-CMOS transistors impacting on circuit and systems yield and reliability. In this paper random discrete dopant (RDD) induced threshold voltage variations have been studied using the Glasgow 3D atomistic drift/diffusion simulator. For the first time, we have carried out statistical simulation based on groundbreaking sample of 100,000 transistors which may assess more than 4σ of the statistical distribution. In order to correctly access the accuracy and the confidence level of the statistical parameters, we have carried out comprehensive statistical analysis using state-of-art statistical tools amenable to our problem. We use the first four moments to fit distribution of RDD induced fluctuations in the threshold voltage by means of several statistical approaches.     

Methodological innovation to increase the utility and efficiency of psychotherapy research for patients with co-occurring mental health and substance use disorders.

Psychotherapy research with chronic and difficult-to-treat populations, such as those with co-occurring mental health and addictive disorders, can employ flexible research designs, which allow for a systematic yet nonlinear relationship between efficacy and effectiveness designs. Outcomes research can bypass the efficacy-effectiveness dichotomy through use of a hybrid model (Carroll & Rounsaville, 2003) conducted in the context of community treatment settings in collaboration with community providers. We present the case for using this methodological approach as a means of advancing psychotherapy research and practice, while translating and disseminating empirically supported treatments with more efficiency. A hybrid model study conducted within the National Institute on Drug Abuse’s Clinical Trials Network illustrates the application. These findings inform new directions for future research. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Interpolation modeling of S-parameter data bases for use in Monte Carlo simulations

A statistical interpolation technique is presented for modeling S-parameter measurements for use in statistical analysis and design of circuits. This is accomplished by interpolating among the measurements in an S-parameter data base in a statistically valid manner.