Marine Flora and Fauna of the Eastern United States: Dicyemida

This manual treats the six species of dicyemid mesozoans that have been reported in three species of hosts (Octopus vulgaris, O. joubini, and O. briareus) from the eastern coast of North America and the Gulf of Mexico, including the Florida Keys. All are parasites of species of Octopus and are in the genus Dicyema, family Dicyemidae. In the introduction, the life cycle, as known, and the general morphology of dicyemids are briefly described, and methods are given for collecting and preparing material for study. These are followed by a key to species and by an annotated checklist, which includes data, some hitherto unpublished, on their known prevalence in hosts from various localities including Bimini and Bermuda.(PDF file contains 20 pages.

Evaluation of a Wake Vortex Upset Model Based on Simultaneous Measurements of Wake Velocities and Probe-Aircraft Accelerations

Simultaneous measurements were made of the upset responses experienced and the wake velocities encountered by an instrumented Learjet probe aircraft behind a Boeing 747 vortex-generating aircraft. The vortex-induced angular accelerations experienced could be predicted within 30% by a mathematical upset response model when the characteristics of the wake were well represented by the vortex model. The vortex model used in the present study adequately represented the wake flow field when the vortices dissipated symmetrically and only one vortex pair existed in the wake

A flight investigation of the wake turbulence alleviation resulting from a flap configuration change on a B-747 aircraft

A flight test investigation was conducted to evaluate the effects of a flap configuration change on the vortex wake characteristics of a Boeing 747 (B-747) aircraft as measured by differences in upset response resulting from deliberate vortex encounters by a following Learjet aircraft and by direct measurement of the velocities in the wake. The flaps of the B-747 have a predominant effect on the wake. The normal landing flap configuration produces a strong vortex that is attenuated when the outboard flap segments are raised; however, extension of the landing gear at that point increases the vortex induced upsets. These effects are in general agreement with existing wind tunnel and flight data for the modified flap configuration

Some measurements of the dynamic and static stability of two blunt-nosed, low-fineness- ratio bodies of revolution in free flight at mequal4

Dynamic and static stability of two blunt nosed low fineness ratio bodies of revolution in free flight - ballistic

Efficacy of digital otoscopy in telemedicine

With an average of 1 audiologist to every 20,000 people in developed countries and as many as 6.25 million people in developing countries, the need for audiology services in rural or underserved populations is evident (Swanepoel, et al., 2010). Telemedicine offers an affordable solution. Previous studies assessed digital otoscopy images for postsurgical follow-up (Kokesh, et al., 2008) as well as remote video otoscopy by telehealth technicians (Biagio, et al., 2013). These studies used traditional laptop based video otoscopes. The purpose of the present study was to determine whether more portable and less expensive systems, such as the CellScope and OTO App, could be used as effectively for referral and diagnosis of external and middle ear disease off-site (telemedicine). The study accomplished this by comparing diagnostic accuracy of CellScope images, determining rate of agreement for referral and obtaining an estimate of image quality. Agreement within professional groups (audiologists – AUD, and otolaryngologists –ENT) and between professionals and the ‘gold’ standard were calculated from 195 comparisons. These agreement scores represented the accuracy with which both groups could specify a diagnosis. All groups were significantly different from each other (p The need for medical referral varied within and between professional groups as well as between CellScope images (pathology). However, two general trends were identified: 1.high agreement between ENTs and AUDs when need for referral was high; and 2. low agreement between the ENTs and AUDs when the need to refer was low. In general, the need for medical referral was rated as higher when the question addressed “immediate referral” or “referral prior to hearing aid fitting/earmold impression” as opposed to need for referral before audiometric testing. All CellScope images were scored by both professional groups as having at least the same quality as manual otoscopy. We conclude that CellScope images can be used effectively for telemedicine with a high degree of accuracy and with good agreement for referral between otolaryngologists and audiologists

Chemically Accurate Calculations of Rate Constants of Spin Trap-Hydroxyl Radical Addition Reactions

The DMPO type spin trap 5,5-Dimethyl-1-pyrroline N-oxide (DMPO) and the exceptionally similar spin trap 2-ethoxycarbonyl-2-methyl-3,4-dihydro-2H-pyrrole-l-oxide (EMPO) are widely studied in computational and theoretical works. This particular study examines the addition reactions that both these molecules undergo with the carcinogenic hydroxyl radical. This work used a relatively new approximation method, called the correlation consistent composite approach or ccCA, for carrying out quantum mechanical calculations to give the free energies of the products and reactants of the reactions. The free energies are to be used to extrapolate the rate constants of the reactions from the Arrhenius equation. Though both the spin traps studied have been widely examined and assessed in both theoretical and experimental work, accurately calculated rate constants have not been previously obtained using computational methods. The results obtained here will help to assess the efficiency and the accuracy of the ccCA method, as well as lead to the design of better, more novel spin traps

SAtlas: Spherical Versions of the Atlas Stellar Atmosphere Program

Context: The current stellar atmosphere programs still cannot match some fundamental observations of the brightest stars, and with new techniques, such as optical interferometry, providing new data for these stars, additional development of stellar atmosphere codes is required. Aims: To modify the open-source model atmosphere program Atlas to treat spherical geometry, creating a test-bed stellar atmosphere code for stars with extended atmospheres. Methods: The plane-parallel Atlas has been changed by introducing the necessary spherical modifications in the pressure structure, in the radiative transfer and in the temperature correction. Results: Several test models show that the spherical program matches the plane-parallel models in the high surface gravity regime, and matches spherical models computed by Phoenix and by MARCS in the low gravity case.Comment: 10 pages, 10 figures, Accepted for publication in A&