Toddlers with Developmental Delays and Challenging Behaviors

Behavior problems and parental expectations and practices were studied in a sample of 58 toddlers with developmental disabilities who were consecutively referred to a mental health clinic. The majority of children (70.7%) exceeded the clinical cut-off score for significant behavior problems including tantrums, aggression, defiance, and hyperactivity, and 77.6% met the DSM-IV criteria for a psychiatric diagnosis with oppositional defiant disorder being the most common. Consistent with previous research, child behavior problems were related to parental use of verbal and corporal punishment and were detrimental to the quality of the parent-child relationship. A new finding was that parental expectations also were positively related to the emergence of early child behavior problems

Scalable photonic quantum computation through cavity-assisted interaction

We propose a scheme for scalable photonic quantum computation based on cavity assisted interaction between single-photon pulses. The prototypical quantum controlled phase-flip gate between the single-photon pulses is achieved by successively reflecting them from an optical cavity with a single-trapped atom. Our proposed protocol is shown to be robust to practical nose and experimental imperfections in current cavity-QED setups.Comment: 5 pages, 2 figure

Training Community-Based Professionals to Implement an Empirically Supported Parenting Program

Professionals representing 14 community-based organizations were trained at three different sites serving urban and rural families to implement an empirically supported parenting program for families of young children with challenging behaviors. Of the 44 practitioners trained, 23 successfully completed the program, which involved passing a knowledge test and facilitating the entire 10session program with a family. A total of 28, primarily low-income families completed the program. The family outcomes obtained by the facilitators, based on multiple pre-program and post-program measures, were comparable with those reported previously in the literature for facilitators trained in university settings. The challenges inherent in efforts to increase the community’s capacity to implement empirically supported programs are addressed

Calibration of Hewlett-Packard network analyzers: A precision viewpoint

Alternative calibration procedures are examined for Hewlett-Packard vector network analyzers which lead to an improved open-circuit capacitance model, and hence, higher measurement accuracy

Bone loss and human adaptation to lunar gravity

Long-duration space missions and establishment of permanently manned bases on the Moon and Mars are currently being planned. The weightless environment of space and the low-gravity environments of the Moon and Mars pose an unknown challenge to human habitability and survivability. Of particular concern in the medical research community today is the effect of less than Earth gravity on the human skeleton, since the limits, if any, of human endurance in low-gravity environments are unknown. This paper provides theoretical predictions on bone loss and skeletal adaptation to lunar and other nonterrestrial-gravity environments based upon the experimentally derived relationship, density approximately (mass x gravity)(exp 1/8). The predictions are compared to skeletal changes reported during bed rest, immobilization, certrifugation, and spaceflight. Countermeasures to reduce bone losses in fractional gravity are also discussed

^25Mg NMR study of the MgB_2 superconductor

^25Mg NMR spectra and nuclear spin-lattice relaxation time, T_1, have been measured in polycrystalline ^25MgB_2 with a superconducting transition temperature T_c = 39.0 K in zero magnetic field. From the first order and second order quadrupole perturbed NMR spectrum a quadrupole coupling frequency nu_Q = 222(1.5) kHz is obtained. T_1T = 1090(50) sK and Knight shift K_c = 242(4) ppm are temperature independent in the normal conducting phase. The ^25Mg Korringa ratio equals to 0.95 which is very close to the ideal value of unity for s-electrons. The comparison of the experimental nu_Q, T_1T, and K_c with the corresponding values obtained by LDA calculations shows an excellent agreement for all three quantities.Comment: 4 pages including 4 eps-figures, revtex

A Mental Health Clinic for Toddlers with Developmental Delays and Behavior Problems

A mental health clinic was developed for toddlers with developmental disabilities and significant behavior problems from families living in poverty. The clinic was a collaborative effort between a community-based Birth-to-Three agency and a university. The purpose of this clinic was threefold: to provide direct mental health services for these young children, to train graduate students to work with this population, and to begin to contribute to the limited research available in this area. This paper describes the clinical intake procedures and outcomes for the 81 children served by the clinic over a 2-year period. Referral concerns included tantrums, aggression, oppositional behaviors, hyperactivity, and self-injury. The children came from a diverse group of families living in poverty; single mothers with less than a high school education headed most of the households. The clinical intake included direct observations of parent–child interactions, child behavior assessments, and parental interviews and self-report measures. For the present sample, 77% of the children met the criteria for a developmental disability and nearly 70% also met the criteria for a psychiatric disorder. The most common diagnosis was oppositional defiant disorder. Discussion regarding the challenges inherent in working with families of toddlers with developmental delays and psychiatric disorders living in low-income circumstances is included