Usability and Technology Acceptance of an Electronic Child Abuse Screening Tool in a Pediatric Emergency Department

Up to half of all child physical abuse victims with major abuse injuries seen in hospitals had sentinel injuries assessed by medical providers. Universal screening for child abuse and neglect in the emergency department can potentially increase detection at lower levels of injury. However, we must consider usability for the electronic health record embedded child abuse and neglect-screening tool to be most effective. The user most likely to interact with the screening tool is the bedside nurse. The interface of the initial screening tool and the process of inputting information must be perceived as useful, usable, and satisfying to the bedside nurse. The alert for a positive screen needs to achieve the right balance in visual hierarchy and workflow while avoiding alert fatigue and information overload in an already busy space. This project addresses the lack of robust universal child abuse and neglect screening in the Texas Children’s Hospitals’ emergency department. It also aims to address the gap in the literature on electronic health record-embedded child abuse and neglect screening tool usability. In addition, it seeks to address the gap in the literature on child abuse, neglect screening, and response protocols, as well as expand those protocols so they encompass support services for families affected by the sequela of poverty to avoid future states of neglect

The Extremely Young Star Cluster Population In Haro 11

We have performed a deep multi-band photometric analysis of the star cluster population of Haro 11. This starburst galaxy (log L_FUV = 10.3 L_sun) is considered a nearby analogue of Lyman break galaxies (LBGs) at high redshift. The study of the numerous star clusters in the systems is an effective way to investigate the formation and evolution of the starburst phase. In fact, the SED fitting models have revealed a surprisingly young star cluster population, with ages between 0.5 and 40 Myr, and estimated masses between 10^3 and 10^7 solar masses. An independent age estimation has been done with the EW(Halpha) analysis of each cluster. This last analysis has confirmed the young ages of the clusters. We noticed that the clusters with ages between 1 and 10 Myr show a flux excess in H (NIC3/F160W) and/or I (WFPC2/F814W) bands with respect to the evolutionary models. Once more Haro 11 represents a challenge to our understanding.Comment: 4 pages, 3 figures. To appear in the proceedings of "Galaxy Wars: Stellar Populations and Star Formation in Interacting Galaxies" (Tennessee, July 09

On the origin of the red excess in very young super star clusters: the case of SBS 0335-052E

The spectral energy distribution analysis of very young unresolved star clusters challenges our understanding of the cluster formation process. Studies of resolved massive clusters in the Milky Way and in the nearby Magellanic Clouds show us that the contribution from photoionized gas is very important during the first Myr of cluster evolution. We present our models which include both a self-consistent treatment of the photoionized gas and the stellar continuum and quantify the impact of such nebular component on the total flux of young unresolved star clusters. A comparison with other available models is considered. The very young star clusters in the SBS 0335-052E dwarf starburst galaxy are used as a test for our models. Due to the low metallicity of the galactic medium our models predict a longer lasted nebular phase which contributes between 10-40% of the total near infrared (NIR) fluxes at around 10 Myr. We propose thus a possible solution for the observed flux excess in the 6 bright super star clusters of SBS 0335-052E. Reines et al. showed that the observed cluster fluxes, in the red-optical and NIR range, sit irreconcilably above the provided stellar continuum models. We find that in the age range estimated from the H_alpha emission we can explain the red excess in all the 6 super star clusters as due to nebular emission, which at cluster ages around 10 Myr still affects the NIR wavebands substantially.Comment: 10 pages, 6 figures, accepted for publication in Ap

A Case Study Exploring the Motivating Factors and Needs That Influence Older Adult Learners’ Decisions to Enroll and Persist in One University System of Georgia eMajor Collaborative Program

This qualitative case study seeks to examine older adult learners\u27 views toward technology use and their motivation, needs, and experiences while enrolled in the eMajor online Organizational Leadership bachelor\u27s degree program offered by the University System of Georgia (USG). The research will investigate what motivates students to enroll in and advance through a degree program and their present technological competencies in relation to online learning management systems. The case study will also strive to identify the demands of older adult learners and the influence online learning has on their drive for program completion. Qualitative data were collected from twelve older adult learners, 45 years of age and older, from one eMajor collaborative program at three partner University System of Georgia institutions through semistructured virtual interviews. The four themes that emerged from the interviews, program, degree, instructor influence, technology, online learning, and needs and experiences helped answer the guiding research questions. The study\u27s results revealed how older adult learners perceive the use of technology in higher education to increase academic achievement, learning comprehension, and course tasks. The current study sought to further assist higher education administrators and leaders understand older adult learners\u27 needs and motivators and how to better support these learners in an online environmen

Reclaiming Our Time: We Do it for the Culture

Using narrative methodology with a lens of critical race feminism, in self-reflexive ways we draw on our experiences as a Latina and Black-Pinay tenure-track faculty who have dealt with spirit murdering and labored in community to resist. We used feminist theories to understand the roots of our friendship and commitment to resistance. Our persistent encounters with spirit murdering were tied to, what we call, “time-theft.” Time-theft describes an embodied consequence of spirit murdering which deeply affects our emotional, mental, and physical well-being. We offer insights into how we resisted “time-theft conquistadors” and other means the institution tried to steal from us. We conclude with resources and recommendations that move us, and hopefully you and yours, closer to reclaiming invaluable time towards whatever moves, sustains and inspires you

The escape of Lyman photons from a young starburst: the case of Haro 11

(Abridged) Lyman-alpha (Lya) is a dominant probe of the galaxy population at high-z. However, interpretation of data drawn from Lya alone hinges on the Lya escape fraction which, due to the complex radiative transport, may vary greatly. Here we map the Lya emission from local starburst Haro 11, a Lya emitter and the only known candidate for low-z Lyman continuum emission (LyC). To aid in the interpretation we perform a detailed multi-wavelength analysis and model the stellar population, dust distribution, ionising photon budget, and star-cluster population. We use archival X-ray observations to further constrain properties of the starburst and estimate the HI column density. The Lya morphology is found to be strongly decoupled from stellar and nebular (H-alpha) morphologies. General surface photometry finds only very slight correlation between Lya and H-halpha, E(B-V), and stellar age. Only around the central Lya-bright cluster do we find the Lya/Ha ratio at values predicted by recombination theory. The total Lya escape fraction is found to be just 3%. We compute that ~90% of the Lya photons that escape do so after undergoing multiple resonance scattering events, masking their point of origin. This leads to a largely symmetric distribution and, by increasing the distance that photons must travel to escape, decreases the escape probability significantly. While dust must ultimately be responsible for the destruction of Lya, it plays little role in governing the observed morphology, which is regulated more by ISM kinematics and geometry. We find tentative evidence for local Lya equivalent width in the immediate vicinity of star-clusters being a function of cluster age, consistent with hydrodynamic studies. We estimate the ionising photon production and further constrain the escape fraction at 900 AA to <~9% .Comment: In press for MNRAS. 18 pages, 9 figures. Version with full resolution images to be found at http://www.astro.su.se/~matthew/english/papers/hayes_lya_haro11_hires.pd

On the contribution of ULXs to stellar feedback: an intermediate mass black hole candidate and the population of ULXs in the low-metallicity starburst galaxy ESO 338-4

X-ray radiation from accreting compact objects is an important part of stellar feedback. The metal-poor galaxy ESO 338-4 has experienced vigorous starburst during the last 40 Myr and contains some of the most massive super star clusters in the nearby Universe. Given its starburst age and its star-formation rate, ESO 338-4 is one of the most efficient nearby manufactures of neutron stars and black holes, hence providing an excellent laboratory for feedback studies. We compared X-ray images and spectra obtained by XMM-Newton and Chandra telescopes with integral field spectroscopic VLT MUSE observations in the optical to constrain the nature of strong X-ray emitters. X-ray observations uncover three ultraluminous X-ray sources (ULXs) in ESO 338-4. The brightest among them, ESO 338~X-1, has X-ray luminosity in excess of 10^{40} erg/s. We speculate that ESO 338-4 is powered by accretion on an intermediate-mass (~300Msun) black hole. We show that X-ray radiation from ULXs and hot superbubbles strongly contributes to HeII ionization and general stellar feedback in this template starburst galaxy.Comment: A&A, in pres

Cretaceous angiosperm leaf floras from Antarctica

Late Cretaceous angiosperm leaf floras from the Antarctic Peninsula have been studied and described for the first time. The Hidden Lake Formation (Coniacian) and Santa Marta Formation (Santonian-early Campanian) floras were preserved within shallow marine strata exposed on James Ross Island. This area was located at approximately 65°S during the Late Cretaceous. These fossils represent the remains of vegetation growing in the southern high latitudes on an emergent volcanic arc. The plants probably grew on the delta top and along the edge of streams. The leaf fossils are preserved as isolated and fragmentary impressions and although cuticular anatomy is not present, the angiosperm leaves show the well-preserved fine detail of leaf architecture. These leaves have been drawn and described using Hickey's (1979) terminology. Attempts were made to group the leaves into morphotypes to allow reconstruction of floral composition and palaeoclimates. Several methods of grouping leaves were used, including visual grouping, Single character classification, and multivariate approaches. Multivariate statistical analysis allowed many characters to be considered simultaneously and even allowed fragmentary specimens, which were harder to deal with visually, to be evaluated. Clustering analysis was performed and dendrograms were produced for the Hidden Lake Formation and Santa Marta Formation floras, which were used in conjunction with visual assessments to group leaves with distinct morphologies into morphotypes. A total of 41 morphotypes were identified, 30 in the Hidden Lake Formation flora and 31 in the Santa Marta Formation flora, with 20 in common. Detailed descriptions of each morphotype and representative illustrations are presented. Comparisons have been drawn with fossil and living angiosperm leaves. Architectural characteristics suggest that some of the leaves may have affinities with the Cunoniaceae, Lauraceae, Sterculiaceae, Nothofagaceae, Myrtaceae and Elaeocarpaceae. If botanical affinities can be confirmed, many of these occurrences would extend the ranges of angiosperm taxa on the Antarctic Peninsula. Palaeoclimatic interpretation of the leaf floras included comparisons with possible nearest living relatives, analysis of leaf margins, shapes and sizes, and the application of simple linear regression and multiple linear regression models. The climate is considered to have been warm and moist. Mean annual temperature estimates of 12-21°C were provided for the Hidden Lake Formation flora and 14-23°C for the Santa Marta Formation flora. Evaluation of published data suggests that these Coniacian-early Campanian leaf floras may reflect the warmest time during the Cretaceous in Antarctica

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