Lisa Blas: Meet Me at the Mason Dixon

The Schmucker Art Gallery at Gettysburg College is extremely pleased to mount the remarkable series of paintings, photographs, and mixed-media installation by contemporary artist Lisa Blas entitled Meet Me at the Mason Dixon. This exhibition is an official part of Gettysburg area’s 150th Commemoration of the American Civil War as well as Gettysburg College’s Kick-Off event for this significant anniversary. Gettysburg provides an especially appropriate backdrop for the exhibition, as the artist took the history of this “hallowed ground” and its current resonances as the subject of her work. Blas traveled the Gettysburg National Military Park, as well as to the Antietam National Battlefield, the Smithsonian Institution, the National Archives and the Museum of the Confederacy in Richmond, Virginia, among many other sites, to investigate how national identity and cultural myths are shaped in response to this momentous period of American history. The title of this exhibition, Meet Me at the Mason Dixon, invokes an encounter at a historical boundary line known for centuries of conflict. The Mason-Dixon Line originally was intended to solve a British colonial dispute. Later, it divided the northern from the southern United States based on the legality of slavery, and as such, symbolizes the massive fracturing of the country during the American Civil War. To contemporary artist Lisa Blas, however, the Mason-Dixon emblematizes the tensions implicit in the concept of historical memory. How are traumas witnessed and remembered? What becomes codified as history, and what other narratives are thereby repressed? What age-old divisions haunt us in the present? Blas comprehends such questions as open-ended, visualizing the past as fundamentally, and persistently, conflicted. [excerpt]https://cupola.gettysburg.edu/artcatalogs/1006/thumbnail.jp

Dirbtinės odos Integra™ naudojimas gydant didelius melanocitinius apgamus

Melanocytic nevi are congenital, benign, pigmented proliferations. They have high risk of malignancy, most frequently transform to malignant skin melanoma and 70% it occurs in the first life decade. The risk of malignant transformation increases proportionately to their size. The best way to avoid those risks is early and radical excision. In 1996 on the market appeared the Integra™ artificial skin, has made it possible to improve the methods for the elimination of large congenital nevi and significantly reduce the risk of malignant melanoma, at an early age. 2011–2019, in Children’s Hospital, Affiliate of Vilnius University Hospital Santaros Clinics, the Integra™ was used to treat congenital melanocytic nevi in four children. Implantation of the skin substitute Integra™ has been successful for all the patients, the prognosis was good. The treatment of congenital melanocytic nevi is a necessity to avoid the risk of developing malignant melanoma. The rarity of this condition has led to the fact that so far there is no universal approach for all the cases. Integra™ artificial skin is an excellent choice for the treatment of congenital melanocytic nevi, especially for paediatric patients.Melanocitiniai apgamai – įgimti gerybiniai pigmentiniai dariniai, turintys didelę piktybinio naviko išsivystymo riziką. Šie dariniai dažniausiai transformuojasi į piktybinę odos melanomą. 70 proc. atvejų tai įvyksta per pirmąjį gyvenimo dešimtmetį. Apgamų piktybiškumo rizika didėja proporcingai jų dydžiui. Norint transformacijos išvengti, būtinas ankstyvas ir radikalus šių darinių pašalinimas. 1996 m. rinkoje pasirodžiusi dirbtinė oda Integra™ suteikė galimybę patobulinti didelių įgimtų apgamų pašalinimo metodus ir jau ankstyvoje vaikystėje smarkiai sumažinti piktybinės melanomos riziką. 2011–2019 m. Vaikų ligoninėje, Vilniaus universiteto ligoninės Santaros klinikos filiale, Integra™ panaudota gydant įgimtus melanocitinius apgamus keturiems vaikams. Odos pakaitalo Integra™ implantacija visiems pacientams buvo sėkminga, prognozė gera. Įgimtų melanocitinių apgamų gydymas reikšmingai sumažina piktybinės melanomos išsivystymo riziką. Būklė gana reta, todėl iki šiol nėra nė vieno visiems tinkamo metodo. Integra™ dirbtinė oda yra puikus pasirinkimas gydant įgimtus melanocitinius apgamus, ypač pediatriniams pacientams

Effects of a Long Chain n-3 Polyunsaturated Fatty Acid-rich Multi-ingredient Nutrition Supplement on Body Composition and Physical Function in Older Adults with Low Skeletal Muscle Mass.

Six months of supplementation with a multi-ingredient nutrition supplement was investigated in older adults with low skeletal muscle mass given the recently purported benefits of such approaches. Community-dwelling older adults (age, 74.9 ± 3.6 y; M/F, 18/19) participated in a double-blind, placebo-controlled, randomized trial involving daily consumption of either fruit juice placebo (PLA) or supplement (SUPP) in the form of a 200-mL carton of a juice-based emulsion of long chain n-3 polyunsaturated fatty acids (LC n-3 PUFA) (3000 mg as 1500 mg docosahexaenoic acid and 1500 mg eicosapentaenoic acid), whey protein isolate (8 g), vitamin D3 (400 IU), and resveratrol (150 mg). Body composition, physical function, and circulating markers of metabolic health were assessed at baseline (PRE), and after 3 (MID) and 6 (POST) months of supplementation. Lean body mass (LBM) was unchanged in either group, but fat mass increased in SUPP by 1.41 (0.75, 2.07) kg at POST (+6.4%

A catalog of bright calibrator stars for 200-meter baseline near-infrared stellar interferometry

We present in this paper a catalog of reference stars suitable for calibrating infrared interferometric observations. In the K band, visibilities can be calibrated with a precision of 1% on baselines up to 200 meters for the whole sky, and up to 300 meters for some part of the sky. This work, extending to longer baselines a previous catalog compiled by Borde et al. (2002), is particularly well adapted to hectometric-class interferometers such as the Very Large Telescope Interferometer (VLTI, Glindemann et al. 2003) or the CHARA array (ten Brummelaar et al. 2003) when observing well resolved, high surface brightness objects (K<8). We use the absolute spectro-photometric calibration method introduced by Cohen et al. (1999) to derive the angular diameters of our new set of 948 G8--M0 calibrator stars extracted from IRAS, 2MASS and MSX catalogs. Angular stellar diameters range from 0.6 mas to 1.8 mas (median is 1.1 mas) with a median precision of 1.35%. For both the northern and southern hemispheres, the closest calibrator star is always less than 10 degree away.Comment: 9 pages, 7 figures, submitted to A&A. The full catalog can be found in http://calys.obspm.fr/~merand/Files/MerandEtAlCatalogue.tx

VLA Observations of the Infrared Dark Cloud G19.30+0.07

We present Very Large Array observations of ammonia (NH3) (1,1), (2,2), and CCS (2_1-1_0) emission toward the Infrared Dark Cloud (IRDC) G19.30+0.07 at ~22GHz. The NH3 emission closely follows the 8 micron extinction. The NH3 (1,1) and (2,2) lines provide diagnostics of the temperature and density structure within the IRDC, with typical rotation temperatures of ~10 to 20K and NH3 column densities of ~10^15 cm^-2. The estimated total mass of G19.30+0.07 is ~1130 Msun. The cloud comprises four compact NH3 clumps of mass ~30 to 160 Msun. Two coincide with 24 micron emission, indicating heating by protostars, and show evidence of outflow in the NH3 emission. We report a water maser associated with a third clump; the fourth clump is apparently starless. A non-detection of 8.4GHz emission suggests that the IRDC contains no bright HII regions, and places a limit on the spectral type of an embedded ZAMS star to early-B or later. From the NH3 emission we find G19.30+0.07 is composed of three distinct velocity components, or "subclouds." One velocity component contains the two 24 micron sources and the starless clump, another contains the clump with the water maser, while the third velocity component is diffuse, with no significant high-density peaks. The spatial distribution of NH3 and CCS emission from G19.30+0.07 is highly anti-correlated, with the NH3 predominantly in the high-density clumps, and the CCS tracing lower-density envelopes around those clumps. This spatial distribution is consistent with theories of evolution for chemically young low-mass cores, in which CCS has not yet been processed to other species and/or depleted in high-density regions.Comment: 29 pages, 9 figures, accepted for publication by ApJ. Please contact the authors for higher resolution versions of the figure

The Use of Personal Projects Analysis to Enhance Occupational Therapy Goal Identification

Background: Client-centered occupational therapy begins with the identification of personally-relevant patient goals. This study aimed to determine whether the elicitation module of Personal Projects Analysis (PPA) could help patients in an acquired brain injury day hospital program identify more meaningful goals than those identified using the Canadian Occupational Performance Measure (COPM) alone. Method: Ten patients completed the COPM. They rated the importance of each goal and their confidence that they could attain each goal. During the next session, using the elicitation module of PPA, they identified personal projects just prior to their brain injuries, current personal projects, and future desired personal projects. They were then invited to revise their COPM goals and re-rate them for importance and confidence. Results: Following completion of the elicitation module of PPA, seven participants changed at least one goal. Of the goals that were changed, half were revised to include the mention of another person. There were no significant changes in average goal importance or perceived attainability. Occupational therapists reported that the elicitation module of PPA helped them get to know their patients better and identify potential therapeutic occupations. Discussion: The elicitation module of PPA may help people develop goals that are more embedded in their social contexts

Probing the envelopes of massive young stellar objects with diffraction limited mid-infrared imaging

Massive stars form whilst they are still embedded in dense envelopes. As a result, the roles of rotation, mass loss and accretion in massive star formation are not well understood. This study evaluates the source of the Q-band, lambda=19.5 microns, emission of massive young stellar objects (MYSOs). This allows us to determine the relative importance of rotation and outflow activity in shaping the circumstellar environments of MYSOs on 1000 AU scales. We obtained diffraction limited mid-infrared images of a sample of 20 MYSOs using the VLT/VISIR and Subaru/COMICS instruments. For these 8 m class telescopes and the sample selected, the diffraction limit, ~0.6", corresponds to approximately 1000 AU. We compare the images and the spectral energy distributions (SEDs) observed to a 2D, axis-symmetric dust radiative transfer model that reproduces VLTI/MIDI observations of the MYSO W33A. We vary the inclination, mass infall rate, and outflow opening angle to simultaneously recreate the behaviour of the sample of MYSOs in the spatial and spectral domains. The mid-IR emission of 70 percent of the MYSOs is spatially resolved. In the majority of cases, the spatial extent of their emission and their SEDs can be reproduced by the W33A model featuring an in-falling, rotating dusty envelope with outflow cavities. There is independent evidence that most of the sources which are not fit by the model are associated with ultracompact HII regions and are thus more evolved. We find that, in general, the diverse 20 micron morphology of MYSOs can be attributed to warm dust in the walls of outflow cavities seen at different inclinations. This implies that the warm dust in the outflow cavity walls dominates the Q-band emission of MYSOs. In turn, this emphasises that outflows are an ubiquitous feature of massive star formation.Comment: Accepted for publication in A&A. The images in this version have been compressed. A high resolution version is available on reques