Notch filter

A notch filter for the selective attenuation of a narrow band of frequencies out of a larger band was developed. A helical resonator is connected to an input circuit and an output circuit through discrete and equal capacitors, and a resistor is connected between the input and the output circuits

The principles of Kielland's Forceps relative to the physiology and anatomy of malrotation of the occiput

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Stage of Change Discrepancies Among Individuals with Dementia and Caregivers

The Transtheoretical Model (TTM) of behavior change outlines a five-step categorization of stages that delineate an individual\u27s readiness to alter a behavior. This model has been used as a basis for understanding the behavioral change process and for tailoring interventions (e.g., smoking cessation and weight management). Little research exists, however, applying the TTM to behaviors among individuals with dementia (IWD) and their caregivers (CGs). Unlike many other behavior changes, the changes associated with adapting to and coping with dementia often rely on changes in both the CG and the IWD. Based on this cooperative aspect of the IWD/CG dyad, it was hypothesized that larger dyad discrepancies would predict poorer psychosocial well-being, as measured by depression, anxiety, quality of life, and relationship strain. This hypothesis, however, was not supported. This paper will discuss the literature to date, the psychometric testing of a novel Readiness to Change measure in this population, and future directions for this fiel

FIELD EVALUATION OF BURLEY LINES CONTAINING ALLELES MINIMIZING NICOTINE TO NORNICOTINE CONVERSION

CYP82e4, CYP82e5, and CYP82e10 mutant alleles that minimize the conversion of nicotine to nornicotine have been introgressed into numerous existing low converting (LC) burley varieties and parental lines developed by the Kentucky-Tennessee tobacco breeding program. A backcross breeding protocol was utilized, with the objective being the creation of e3 varieties that differed from their LC counterparts only for nornicotine and nitroso-nornicotine content. Field studies were conducted in Kentucky and Tennessee during the 2013 growing season, with 17 prospective parental lines and 20 prospective commercial varieties grown and compared to their original counterparts. Most of the e3 lines were not morphologically equivalent to their LC counterparts; several were also lacking in black shank resistance. Selections and/or backcrosses to the appropriate LC counterparts were made in 2013 in an attempt to improve the e3 lines to make them more comparable to the LC versions. The improved parental lines and hybrids were re-evaluated in 2014. The comparative performance of e3 versus LC lines was substantially improved in the 2014 trials. After making selections and/or one or two backcrosses, the plant type and black shank resistance were improved for all e3 lines. The reduction in nicotine to nornicotine conversion was successful, with the e3 lines having conversion rates ranging from 0.48 to 0.66 percent, compared to a range of 2.35 to 4.86 percent for the LC lines. With a lower rate of conversion to nornicotine, the nitroso-nornicotine amounts were also reduced; values for the e3 materials ranged from 0.06 to 0.12 ppm, compared to a range of 0.27 to 0.61 ppm for the LC materials. All data for disease resistance, agronomic characteristics, and yield are presented

Stage of Change Discrepancies Among Individuals with Dementia and Caregivers

The Transtheoretical Model (TTM) of behavior change outlines a five-step categorization of stages that delineate an individual\u27s readiness to alter a behavior. This model has been used as a basis for understanding the behavioral change process and for tailoring interventions (e.g., smoking cessation and weight management). Little research exists, however, applying the TTM to behaviors among individuals with dementia (IWD) and their caregivers (CGs). Unlike many other behavior changes, the changes associated with adapting to and coping with dementia often rely on changes in both the CG and the IWD. Based on this cooperative aspect of the IWD/CG dyad, it was hypothesized that larger dyad discrepancies would predict poorer psychosocial well-being, as measured by depression, anxiety, quality of life, and relationship strain. This hypothesis, however, was not supported. This paper will discuss the literature to date, the psychometric testing of a novel Readiness to Change measure in this population, and future directions for this fiel

Stage of Change Discrepancies Among Individuals with Dementia and Caregivers

The Transtheoretical Model (TTM) of behavior change outlines a five-step categorization of stages that delineate an individual\u27s readiness to alter a behavior. This model has been used as a basis for understanding the behavioral change process and for tailoring interventions (e.g., smoking cessation and weight management). Little research exists, however, applying the TTM to behaviors among individuals with dementia (IWD) and their caregivers (CGs). Unlike many other behavior changes, the changes associated with adapting to and coping with dementia often rely on changes in both the CG and the IWD. Based on this cooperative aspect of the IWD/CG dyad, it was hypothesized that larger dyad discrepancies would predict poorer psychosocial well-being, as measured by depression, anxiety, quality of life, and relationship strain. This hypothesis, however, was not supported. This paper will discuss the literature to date, the psychometric testing of a novel Readiness to Change measure in this population, and future directions for this fiel

Robustness of the Thirty Meter Telescope Primary Mirror Control System

The primary mirror control system for the Thirty Meter Telescope (TMT) maintains the alignment of the 492 segments in the presence of both quasi-static (gravity and thermal) and dynamic disturbances due to unsteady wind loads. The latter results in a desired control bandwidth of 1Hz at high spatial frequencies. The achievable bandwidth is limited by robustness to (i) uncertain telescope structural dynamics (control-structure interaction) and (ii) small perturbations in the ill-conditioned influence matrix that relates segment edge sensor response to actuator commands. Both of these effects are considered herein using models of TMT. The former is explored through multivariable sensitivity analysis on a reduced-order Zernike-basis representation of the structural dynamics. The interaction matrix ("A-matrix") uncertainty has been analyzed theoretically elsewhere, and is examined here for realistic amplitude perturbations due to segment and sensor installation errors, and gravity and thermal induced segment motion. The primary influence of A-matrix uncertainty is on the control of "focusmode"; this is the least observable mode, measurable only through the edge-sensor (gap-dependent) sensitivity to the dihedral angle between segments. Accurately estimating focus-mode will require updating the A-matrix as a function of the measured gap. A-matrix uncertainty also results in a higher gain-margin requirement for focus-mode, and hence the A-matrix and CSI robustness need to be understood simultaneously. Based on the robustness analysis, the desired 1 Hz bandwidth is achievable in the presence of uncertainty for all except the lowest spatial-frequency response patterns of the primary mirror

Divorce Etiquette for Parents

The author advises parents experiencing divorce on how to understand divorce, care for their children, communicate with and relate to the other parent in ways that promote family well-being and avoid creating new problems