2,929 research outputs found

    Validity of the Emotional Attachment Zones Evaluation (EA-Z): Assessing Attachment Style Across a Developmental Spectrum

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    Sensitive, consistent caregiving and a secure attachment style are important to healthy child development. However, the lack of continuity in measures from infancy into adulthood limits conclusions regarding the stability of attachment styles across the lifespan. A new measure, the Emotional Attachment Zones Evaluation (EA-Z), derived from the Emotional Availability Scales (Biringen, 2008; Biringen, Robinson, & Emde, 1998), offers a tool to assess attachment style across a broad developmental spectrum. In order to validate this measure as an attachment style measure, we used three studies to compare the EA-Z to empirically validated attachment tools. In study 1, we compared the EA-Z to the Strange Situation Procedure. There was moderate concordance between these two measures for both mother and infant. In study 2, we compared the EA-Z to the Attachment Q-Sort in an infant/toddler childcare setting. Child EA-Z scores related to child attachment security, whereas teacher EA-Z scores did not relate to child attachment security. Finally, in study 3, we compared the EA-Z to the mother’s Adult Attachment Interview. Results indicated moderate concordance between these measures, both for the adult mother and the preschool child. All three of these studies offer promising evidence for the validity of the EA-Z as an attachment tool, as well as future directions for research and practice using the EA System

    COVID-19 Vaccine Information and Patient Opinions

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    As the COVID-19 vaccine becomes available in Vermont, many patients have questions about the safety and efficacy, who it will be available for, when they can expect to get the vaccine, if their doctor would recommend it for them. These important questions are taking valuable time during already short patient visits, and as information is constantly evolving it is difficult to give a concise answer to many questions. This project outlined the basics of the vaccine and answered many FAQs.https://scholarworks.uvm.edu/fmclerk/1710/thumbnail.jp

    Ising universality in the two-dimensional Blume-Capel model with quenched random crystal field

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    Using high-precision Monte-Carlo simulations based on a parallel version of the Wang-Landau algorithm and finite-size scaling techniques we study the effect of quenched disorder in the crystal-field coupling of the Blume-Capel model on the square lattice. We mainly focus on the part of the phase diagram where the pure model undergoes a continuous transition, known to fall into the universality class of the pure Ising ferromagnet. A dedicated scaling analysis reveals concrete evidence in favor of the strong universality hypothesis with the presence of additional logarithmic corrections in the scaling of the specific heat. Our results are in agreement with an early real-space renormalization-group study of the model as well as a very recent numerical work where quenched randomness was introduced in the energy exchange coupling. Finally, by properly fine tuning the control parameters of the randomness distribution we also qualitatively investigate the part of the phase diagram where the pure model undergoes a first-order phase transition. For this region, preliminary evidence indicate a smoothening of the transition to second-order with the presence of strong scaling corrections.Comment: 11 pages, 13 figures, minor correction to references appearing in Fig. 1, to be published in Phys. Rev.

    Risk Factors for Trabeculotomy Failure in Primary Congenital Glaucoma

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    Précis: This study demonstrates that a baseline corneal diameter >12.25, initial age [removed]12.25 mm did by 4.2 times, younger age than 4 months did by 2.5 times, bilaterality did by 1.5 times. Conclusions: A higher baseline IOP, younger age, larger corneal diameter, and bilaterality were identified as risk factors for trabeculotomy failure in congenital glaucoma. The presence of one or more of these should be considered in the decision-making process when considering surgical options to manage glaucoma in these patients. © 2022 Wolters Kluwer Health, Inc. All rights reserved

    Climate Variability and Water Infrastructure: Historical Experience in the Western United States

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    Greater historical perspective is needed to enlighten current debate about future human responses to higher temperatures and increased precipitation variation. We analyze the impact of climatic conditions and variability on agricultural production in five semi-arid western states. We assemble county-level data on dams and other major water infrastructure; agricultural crop mixes and yields; precipitation and temperature; soil quality, and topography. Using this extensive data set, we analyze the impact of water infrastructure investments on crop mix and yields in affected counties relative to similarly-endowed counties that lack such infrastructure. We find that water infrastructure smoothes agricultural crop production and increases the likelihood of a successful harvest, especially during times of severe drought or excessive precipitation.

    Connecting Mathematics and Community: Challenges, Successes, and Different Perspectives

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    In this article, we summarize our personal journey to establish a successful math circle in a community that is not very familiar with such mathematics enrichment programs. We share the story of how our math circle began three years ago, as well as the lessons we learned and our organizational challenges and successes. Additionally, we outline three primary perspectives: the founder perspective, the student volunteer perspective, and the faculty volunteer perspective

    A Nanoporous Silicon Nitride Membrane Using A Two-step Lift-off Pattern Transfer With Thermal Nanoimprint Lithography

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    Nanoimprint lithography is emerging as a viable contender for fabrication of large-scale arrays of 5500 nm features. A fabrication process for the realization of thin nanoporous membranes using thermal nanoimprint lithography is presented. Suspended silicon nitride membranes were fabricated by low-pressure chemical vapor deposition (LPCVD) in conjunction with a potassium hydroxide-based bulk micromachining process. Nanoscale features were imprinted into a commercially available thermoplastic polymer resist using a prefabricated silicon mold. The pattern was reversed and transferred to a thin aluminum oxide layer by means of a novel two-stage lift-off technique. The patterned aluminum oxide was used as an etch mask in a CHF 3/He-based reactive ion etch process to transfer the pattern to silicon nitride. Highly directional etch profiles with near vertical sidewalls and excellent Si 3N 4/Al 2O 3etch selectivity were observed. One micrometer thick porous membranes with varying dimensions of 250x250 νm 2to 450x450 νm 2and a pore diameter of 400 nm have been engineered and evaluated. Results indicate that the membranes have consistent nanopore dimensions and precisely defined porosity, which makes them ideal as gas exchange interfaces in blood oxygenation systems as well as other applications such as dialysis. © 2012 IOP Publishing Ltd
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