1,803 research outputs found
MS-077: Gladys Kennedy World War II Letters
This collection of correspondence contains letters from all fronts and from many of Gladys’ “sweethearts.” It appears that she shipped her address out in the parts she made at the Depot and would get responses from some of the soldiers and sailors. Some of the letters are from soldiers and sailors abroad from her hometown of York Springs, Pennsylvania. Collection includes paperwork from a raise received by Kennedy in 1944.https://cupola.gettysburg.edu/findingaidsall/1146/thumbnail.jp
The Self-Taught Marketers Guide to Creating an Annual Report
Objective
To produce an easy-to-read, visually appealing, 1-4 page annual report for the University of Maryland, Baltimore’s Health Sciences and Human Services Library (HSHSL). The report should be a mix of interesting statistics, highlights, stories, quotes, and photographs to promote the HSHSL’s annual accomplishments to the campus.
Methods
We gather all of the stories and statistics we think will be eligible material for the annual report, pulling content and ideas from: newsletters, workshops, blog posts, events, exhibits, and meetings with division and department heads. An annual report committee and visual designer decide upon the top stories and statistics, focusing upon high-impact events, meaningful statistics, and attractive design, images, and photographs to craft the report. We keep in mind that the report is meant to be read by non-librarians, and that the language and messages need to be understandable to our larger campus community.Results
This will be our 5th year producing an annual report for the HSHSL. The process has become more streamlined and less time-consuming as we have become familiar with where to source content, design principles, and how to manage space limitations. This has decreased the amount of time it takes to produce the report and the number of iterations we go through before achieving our final product. Additionally, other libraries have been inspired by our designs and created their own colorful Annual Reports based on our layouts and ideas.
Conclusions
In our next report we plan to include a survey link to try to elicit feedback from our readers. We would like to know if the report was useful to them and if there is other information they would be interested to see in future reports
Smell you later - the repelling effect of secondary plant compounds against water voles and common voles
Fischer, D., Prokop, A., Wink, M., Mattes, H., Jacob, J
Fostering Preservice Teacher Identity in Science through a Student-Selected Project
This article addresses the problem of authentic student engagement in the science classroom by incorporating a semester long research and writing assignment that enables students to investigate scientific topics related to strong personal, career, or health interests
Interferometric imaging of carbon monoxide in comet C/1995 O1 (Hale-Bopp): evidence for a strong rotating jet
Observations of the CO J(1-0) 115 GHz and J(2-1) 230 GHz lines in comet
C/1995 O1 (Hale-Bopp) were performed with the IRAM Plateau de Bure
interferometer on 11 March, 1997. The observations were conducted in both
single-dish (ON-OFF) and interferometric modes with 0.13 km s-1 spectral
resolution. Images of CO emission with 1.7 to 3" angular resolution were
obtained. The ON-OFF and interferometric spectra show a velocity shift with
sinusoidal time variations related to the Hale-Bopp nucleus rotation of 11.35
h. The peak position of the CO images moves perpendicularly to the spin axis
direction in the plane of the sky. This suggests the presence of a CO jet,
which is active night and day at about the same extent, and is spiralling with
nucleus rotation. The high quality of the data allows us to constrain the
characteristics of this CO jet. We have developed a 3-D model to interpret the
temporal evolution of CO spectra and maps. The CO coma is represented as the
combination of an isotropic distribution and a spiralling gas jet, both of
nucleus origin. Spectra and visibilities (the direct output of interferometric
data) analysis shows that the CO jet comprises ~40% the total CO production and
is located at a latitude ~20 degrees North on the nucleus surface. Our
inability to reproduce all observational characteristics shows that the real
structure of the CO coma is more complex than assumed, especially in the first
thousand kilometres from the nucleus. The presence of another moving CO
structure, faint but compact and possibly created by an outburst, is
identified.Comment: 20 pages, 26 figures. Accepted for publication in Astronomy &
Astrophysic
Neutron-induced background in the CONUS experiment
CONUS is a novel experiment aiming at detecting elastic neutrino nucleus
scattering in the fully coherent regime using high-purity Germanium (Ge)
detectors and a reactor as antineutrino () source. The detector setup
is installed at the commercial nuclear power plant in Brokdorf, Germany, at a
very small distance to the reactor core in order to guarantee a high flux of
more than 10/(scm). For the experiment, a good
understanding of neutron-induced background events is required, as the neutron
recoil signals can mimic the predicted neutrino interactions. Especially
neutron-induced events correlated with the thermal power generation are
troublesome for CONUS. On-site measurements revealed the presence of a thermal
power correlated, highly thermalized neutron field with a fluence rate of
(74530)cmd. These neutrons that are produced by nuclear
fission inside the reactor core, are reduced by a factor of 10 on
their way to the CONUS shield. With a high-purity Ge detector without shield
the -ray background was examined including highly thermal power
correlated N decay products as well as -lines from neutron
capture. Using the measured neutron spectrum as input, it was shown, with the
help of Monte Carlo simulations, that the thermal power correlated field is
successfully mitigated by the installed CONUS shield. The reactor-induced
background contribution in the region of interest is exceeded by the expected
signal by at least one order of magnitude assuming a realistic ionization
quenching factor of 0.2.Comment: 28 pages, 28 figure
Pearling: stroke segmentation with crusted pearl strings
We introduce a novel segmentation technique, called Pearling, for the semi-automatic extraction of idealized models of networks of strokes (variable width curves) in images. These networks may for example represent roads in an aerial photograph, vessels in a medical scan, or strokes in a drawing. The operator seeds the process by selecting representative areas of good (stroke interior) and bad colors. Then, the operator may either provide a rough trace through a particular path in the stroke graph or simply pick a starting point (seed) on a stroke and a direction of growth. Pearling computes in realtime the centerlines of the strokes, the bifurcations, and the thickness function along each stroke, hence producing a purified medial axis transform of a desired portion of the stroke graph. No prior segmentation or thresholding is required. Simple gestures may be used to trim or extend the selection or to add branches. The realtime performance and reliability of Pearling results from a novel disk-sampling approach, which traces the strokes by optimizing the positions and radii of a discrete series of disks (pearls) along the stroke. A continuous model is defined through subdivision. By design, the idealized pearl string model is slightly wider than necessary to ensure that it contains the stroke boundary. A narrower core model that fits inside the stroke is computed simultaneously. The difference between the pearl string and its core contains the boundary of the stroke and may be used to capture, compress, visualize, or analyze the raw image data along the stroke boundary
Phylogenetic relationships of African green snakes (genera Philothamnus and Hapsidophrys) from São Tomé, Príncipe and Annobon islands based on mtDNA sequences, and comments on their colonization and taxonomy
Mitochondrial sequences (16S rRNA and cytochrome b) of the colubrine snake genera Philothamnus and Hapsidophrys
were analysed. Samples were obtained from three volcanic islands in the Gulf of Guinea. The main objective was to infer
phylogenetic relationships between the taxa and to trace back the colonization patterns of the group. Both insular species,
Philothamnus girardi and Philothamnus thomensis, form a monophyletic unit indicating a single colonization event of
one island (probably São Tomé) followed by dispersal to Annobon. Genetic divergence was found to be relatively low
when compared with other Philothamnus species from the African mainland, but sufficient to consider the two taxa as
distinct sister species. Here we also present evidence on the distinct phylogenetic position of Hapsidophrys sp. from
the island of Príncipe, which should be considered as a distinct species, Hapsidophrys principis, a sister taxon of H.
smaragdina.info:eu-repo/semantics/publishedVersio
Interferometric imaging of the sulfur-bearing molecules H2S, SO and CS in comet C/1995 O1 (Hale-Bopp)
We present observations of rotational lines of H2S, SO and CS performed in
comet C/1995 O1 (Hale-Bopp) in March 1997 with the Plateau de Bure
interferometer (IRAM). The observations provide informations on the spatial and
velocity distributions of these molecules. They can be used to constrain their
photodissociation rate and their origin. We use a radiative transfer code which
allows us to compute synthetic line profiles and interferometric maps, to be
compared to the observations. Both single-dish spectra and interferometric
spectral maps show a day/night asymmetry in the outgassing. From the analysis
of the spectral maps, including the astrometry, we show that SO and CS present
in addition a jet-like structure that may be the gaseous counterpart of the
dust high-latitude jet observed in optical images. A CS rotating jet is also
observed. Using the astrometry provided by continuum radio maps obtained in
parallel, we conclude that there is no need to invoke of nongravitational
forces acting on this comet, and provide an updated orbit. The radial extension
of H2S is found to be consistent with direct release from the nucleus. SO
displays an extended radial distribution. Assuming that SO2 is the parent of
SO, the photodissociation rate of SO is measured to be 1.5 E-4 s-1 at 1 AU from
the Sun. This is lower than most laboratory-based estimates and may suggest
that SO is not solely produced by SO2 photolysis. From the observations of
J(2-1) and J(5-4) CS lines, we deduce a CS photodissociation rate of 1 to 5 E-5
s-1. The photodissociation rate of CS2, the likely parent of CS, cannot be
constrained due to insufficient resolution, but our data are consistent with
published values. These observations illustrate the cometary science that will
be performed with the future ALMA interferometer.Comment: Accepted for publication in Astronomy & Astrophysic
- …