Atlas of Dayton Herald, November 2021: A Look Back into the Years 1933–1951 in America

Today’s existing trauma of racial segregation and racial inequity links to the Home Owners’ Loan Corporation (HOLC) and its practices as a government agency.https://ecommons.udayton.edu/art_fac_works/1000/thumbnail.jp

Silver Lining: A Letter to Students from Misty Thomas-Trout

This is a handwritten letter from Misty Thomas-Trout to her Graphic Design I (VAD 411) students in March, sent the day before classes resumed following spring break. Initially, virtual education was a precaution, set to last for two weeks; however, it extended for the remainder of the term and the summer term. By the time the fall semester began in late August 2020, more than 5 million cases had been reported in the United States. Following the handwritten letter is a typed version. The indents of the paragraphs reflect the way the letter appeared on paper. The letter was the basis of a design exercise called Silver Lining. Those projects appear under that title in this collection.https://ecommons.udayton.edu/stu_vad_covid19/1000/thumbnail.jp

Promotional Flier: Global Voices on the University of Dayton Campus

Promotional flier for the Alumni Chair in the Humanities symposium Global Voices on the University of Dayton Campus features schedule of sessions and a photo of the keynote speaker, Imbolo Mbue, author of the novel Behold the Dreamers. Poster dimensions: 8.5 inches wide, 11 inches tal

A Place of Passage: Graphic Design and the Transformation of Space Into Experience

This book explains the story behind the artwork in the first-floor central corridor of St. Mary\u27s Hall. Students and faculty in a Department of Art and Design practicum course — called Ligature Studio — worked for almost two years on the project, which was completed in January 2019. The holistic design concept aimed to honor the physical and spiritual passage of individuals through time through one of UD’s oldest facilities.https://ecommons.udayton.edu/passage_supplement/1000/thumbnail.jp

Program: Keynote Address, Author Imbolo Mbue

Program for keynote address of the Alumni Chair in the Humanities symposium Global Voices on the University of Dayton Campus. Program dimensions: 8.5 inches wide, 5.5 inches tal

In vitro increase of mean corpuscular volume difference (dMCV) as a marker for serum hypertonicity in dogs.

Spurious increase in erythrocyte mean corpuscular volume (MCV) on automated cell analyzers is a well-characterized lab error in hypertonic patients. A difference between automated and manual MCV (dMCV) greater than 2 fl has been shown to predict hypertonicity in humans. The purpose of this study was to investigate dMCV as a marker for serum hypertonicity in dogs and to examine the relationship between dMCV and three methods of estimating serum tonicity: measured (OsM_M), calculated (OsM_C), and calculated effective (OsM_CE) osmolalities. OsM_C, OsM_CE, and dMCV were calculated from routine blood values and OsM_M was directly measured in 121 dogs. The dMCV of hypertonic dogs was significantly larger than that of normotonic dogs for all three osmolality methods. dMCV predicted hypertonicity as estimated by OsM_M better than it predicted hypertonicity as estimated by OsM_C and OsM_CE. A cutoff of 2.96 fl yielded the best sensitivity (76%) and specificity (71%) for hypertonicity estimated by OsMM

Resolved Measurements of X_(CO) in NGC 6946

We present the largest sample to date of giant molecular clouds (GMCs) in a substantial spiral galaxy other than the Milky Way. We map the distribution of molecular gas with high resolution and image fidelity within the central 5 kpc of the spiral galaxy NGC 6946 in the ^(12)CO (J = 1-0) transition. By combining observations from the Nobeyama Radio Observatory 45 m single dish telescope and the Combined Array for Research in Millimeter Astronomy interferometer, we are able to obtain high image fidelity and accurate measurements of L_CO compared with previous purely interferometric studies. We resolve individual GMCs, measure their luminosities and virial masses, and derive X CO—the conversion factor from CO measurements to H2 masses—within individual clouds. On average, we find that X_CO = 1.2 × 10^(20) cm^(–2) (K km s^(–1))^(–1), which is consistent within our uncertainties with previously derived Galactic values as well as the value we derive for Galactic GMCs above our mass sensitivity limit. The properties of our GMCs are largely consistent with the trends observed for molecular clouds detected in the Milky Way disk, with the exception of six clouds detected within ~400 pc of the center of NGC 6946, which exhibit larger velocity dispersions for a given size and luminosity, as has also been observed at the Galactic center

Flash Mixing of the White Dwarf Cooling Curve Spectroscopic Confirmation in NGC 2808

We present new HST far-UV spectroscopy of two dozen hot evolved stars in NGC 2808, a massive globular cluster with a large population of "blue-hook" stars. The blue-hook stars are found in ultraviolet color-magnitude diagrams of the most massive globular clusters, where they fall at luminosities immediately below the hot end of the horizontal branch (HB), in a region of the HR diagram unexplained by canonical stellar evolution theory. Using new theoretical evolutionary and atmospheric models, we have shown that these subluminous HB stars are very likely the progeny of stars that undergo extensive internal mixing during a late He-core flash on the white dwarf cooling curve. This flash mixing leads to hotter temperatures and an enormous enhancement of the surface He and C abundances; the hotter temperatures and associated decrease in the hydrogen opacity shortward of the Lyman limit makes the stars brighter in the extreme UV but appear sub luminous in the UV and optical. Our far-UV spectroscopy demonstrates that, relative to normal HB stars at the same color, the blue-hook stars of NGC 2808 are hotter and greatly enhanced in He and C, thus providing unambiguous evidence of flash mixing in the subluminous population. Although the C abundance in the blue-hook stars is orders of magnitude larger than that in the normal HB stars, the atmospheric C abundance in both the blue-hook and normal HB stars appears to be affected by gravitational settling. The abundance variations seen in C, Si, and the Fe-peak elements indicate that atmospheric diffusion is at play in our sample, with all of our hot subdwarfs at 25,000 K to 50,000 K exhibiting large enhancements of the iron-peak elements. The hottest subdwarfs in our blue-hook sample may be pulsators, given that they fall in the temperature range of newly-discovered pulsating subdwarfs in omega Cen