Validation of the Dutch Infant Crying and Parent Well-Being Screening Tool in Parents of Infants Less than 12 Months of Age.

Objective: To evaluate reliability and validity of the Dutch version of the Infant Crying and Parent Well-Being (ICPW) tool in identifying parents struggling with infant crying in the first year of life.

Study Design: The original ICPW tool was translated into Dutch following established guidelines. The internal consistency and criterion validity of the Dutch ICPW tool were evaluated using a cross-sectional design.

Analysis of geometric defects in square locally resonant phononic crystals: A comparative study of modeling approachesa).

Phononic crystals can develop defects during manufacturing that alter the desired dynamic response and bandgap behavior. This frequency behavior change can enable successful defect inspection if the characteristic defect response is known. In this study, the behavior of a defective square unit cell comprising a freed and shortened leg is studied using a wave finite element method and an approximate continuous-lumped model to elucidate the defect induced qualitative dynamical features.

Shear Wave Ultrasound Inspection of Flaws in Silicon Wafers Using Focused Transducers.

Silicon parts can contain micrometer-sized vertical cracks that are challenging to detect. Inspection using high-frequency focused ultrasound has shown promise for detecting defects of this size and geometry. However, implementing focused ultrasound to inspect anisotropic media can prove challenging, given the directional dependence of wave propagation and subsequent focusing behavior.

Focal depth localization for highly focused transducers in isotropic materials.

Focusing equations aim to define the point in a solid at which a transducer beam will reach a minimum cross section. The most commonly used focusing equation relies on a small angle assumption that inherently excludes sharply focused transducers with significant curvature. In this article, a revised focusing equation is proposed for normal and oblique incidence through a fluid-solid interface.

Development and validation of the infant crying and parent well-being screening tool.

This article describes the development and validation of the infant crying and parent well-being (ICPW) screening tool, developed to provide an effective and efficient way of identifying families struggling with infant crying and soothing. Construct validity for the ICPW was assessed using survey data from 290 parents of infants. Scores on the ICPW were associated with parental depression, parenting stress, and low co-parent confidence.