We consider a Wannier-Stark problem for small eld f in the one-ladder case. We prove that a generical rst band state is a metastable state (Wannier-Bloch oscillator) with the lifetime determined by the imaginary part of the Wannier-Stark ladder. The innnite resonances of the ladder cause Bloch oscillations as a global beating eeect. For an adiabatic time = ft large enough, but much smaller than...

Purpose of Review The Social Communication Questionnaire (SCQ) is a screener for Autism spectrum disorder (ASD) validated for age 4.0 +. There is a clinical need for an ASD screener for children beyond the 30-month age limit of the M-CHAT-R/F. We evaluate the literature on the use of the SCQ in children < 4.0 years. Recent Findings Recent studies have used very large samples; included typical...

objective: this study evaluated the theory of mind (tom) in adolescents diagnosed with bipolar disorder ‎‎(bd) during their euthymic period compared to a typically developing (td) group.‎ method: the bd group consisted of thirty 11-18 year old inpatients in euthymic phase. the td ‎group included 30 age, gender, and iq matched volunteer students. to assess the diagnosis and ‎comorbid disorders, ...

We consider the problem of inter-cluster routing between cluster heads via intermediate sensor nodes in a hierarchical sensor network. Sensor nodes having limited and unreplenishable power resources, both path length and path energy cost are important metrics affecting sensor lifetime. In this paper, we model the formation of length and energy constrained paths using a game theoretic paradigm. ...

The weighted oscillator strengths (gf) and the lifetimes for O I presented in this work were obtained in a multicon guration Hartree-Fock relativistic (HFR) approach. In this calculation, the electrostatic parameters were optimized by a least-squares procedure, in order to improve the adjustment to experimental energy levels. This method produces gf-values that are in better agreement with inte...

OBJECTIVE To estimate the 12-month and lifetime prevalence rates of mood and anxiety disorders in Israel and their socio-demographic correlates. METHOD A representative sample of respondents extracted from the National Population Register of non-institutionalized residents, aged 21 or older, were interviewed at home between May, 2003, and April, 2004. DSM-IV disorders were assessed using a re...

Ad hoc networks are non-infrastructure networks which consist of mobile nodes. Since the mobile nodes have limited battery power, it is very important to use energy efficiently in ad hoc networks. In order to maximize the lifetime of ad hoc networks, traffic should be sent via a route that can be avoid nodes with low energy while minimizing the total transmission power. In addition, considering...

This was the first Korean national study to evaluate prevalence and correlates of suicidal behavior, and to compare multiple and single attempts. A total of 6510 adults completed face-to-face interviews (response rate, 81.7%) through randomly chosen one-person-per-households. Lifetime prevalence and correlates were evaluated with the Korean version of Composite International Diagnostic Intervie...

Abstract The fact that our attitudes change poses well-known challenges for attitude-sensitive wellbeing theories. Suppose in the past you favoured your adventurous youthful life more than quiet and unassuming expected to live as an old person; now when look back favour current life. Which period of is better you? More generally, how can we find a stable standard wellbeing, if part defined term...

abstract: the lifetime of a cutting tool is an important and determinant parameter for evaluating its performance. the amount of tool abrasion affects seriously dimensions and surface quality of the working piece so that one of the main factors to determine the lifetime of a tool is the level of its wearing. for this purpose, an abrasion standard is defined for each particular tool above which ...