2,671 research outputs found
Population Growth and Other Statistics of Middle-sized Irish Towns. General Research Series Paper No. 85, April 1976
The basic aim of the study is the presentation of tables of comparative
statistical data relating to 97 towns with population 5OO-1O,OOO in
1971 and analyses of such data. The exclusion of the four County Boroughs
and Dun Laoghaire together with twelve other large towns and all small
towns and villages, was to impart a degree of homogeneity to the inquiry, as
regards function of town. The 97 towns range from Mullingar, the largest
with a population of 9,245 to Cootehill with 1,542
Using digital and hand printing techniques to compensate for loss: re-establishing colour and texture in historic textiles
Conservators use a range of 'gap filling' techniques to improve the structural stability and presentation of objects. Textile conservators often use fabric supports to provide reinforcement for weak areas of a textile and to provide a visual infill in missing areas. The most common technique is to use dyed fabrics of a single colour but while a plain dyed support provides good reinforcement, it can be visually obtrusive when used with patterned or textured textiles. Two recent postgraduate dissertation projects at the Textile Conservation Centre (TCC) have experimented with hand printing and digital imaging techniques to alter the appearance of support fabrics so that they are less visually obtrusive and blend well with the colour and texture of the textile being supported. Case studies demonstrate the successful use of these techniques on a painted hessian rocking horse and a knitted glove from an archaeological context
Instrument Performance in Kepler's First Months
The Kepler Mission relies on precise differential photometry to detect the 80
parts per million (ppm) signal from an Earth-Sun equivalent transit. Such
precision requires superb instrument stability on time scales up to ~2 days and
systematic error removal to better than 20 ppm. To this end, the spacecraft and
photometer underwent 67 days of commissioning, which included several data sets
taken to characterize the photometer performance. Because Kepler has no
shutter, we took a series of dark images prior to the dust cover ejection, from
which we measured the bias levels, dark current, and read noise. These basic
detector properties are essentially unchanged from ground-based tests,
indicating that the photometer is working as expected. Several image artifacts
have proven more complex than when observed during ground testing, as a result
of their interactions with starlight and the greater thermal stability in
flight, which causes the temperature-dependent artifact variations to be on the
timescales of transits. Because of Kepler's unprecedented sensitivity and
stability, we have also seen several unexpected systematics that affect
photometric precision. We are using the first 43 days of science data to
characterize these effects and to develop detection and mitigation methods that
will be implemented in the calibration pipeline. Based on early testing, we
expect to attain Kepler's planned photometric precision over 80%-90% of the
field of view.Comment: 5 pages, 2 figures, 2 tables, Astrophysical Journal Letters, accepte
Orally active antischistosomal early leads identified from the open access malaria box.
BACKGROUND: Worldwide hundreds of millions of schistosomiasis patients rely on treatment with a single drug, praziquantel. Therapeutic limitations and the threat of praziquantel resistance underline the need to discover and develop next generation drugs. METHODOLOGY: We studied the antischistosomal properties of the Medicines for Malaria Venture (MMV) malaria box containing 200 diverse drug-like and 200 probe-like compounds with confirmed in vitro activity against Plasmodium falciparum. Compounds were tested against schistosomula and adult Schistosoma mansoni in vitro. Based on in vitro performance, available pharmacokinetic profiles and toxicity data, selected compounds were investigated in vivo. PRINCIPAL FINDINGS: Promising antischistosomal activity (IC50: 1.4-9.5 µM) was observed for 34 compounds against schistosomula. Three compounds presented IC50 values between 0.8 and 1.3 µM against adult S. mansoni. Two promising early leads were identified, namely a N,N'-diarylurea and a 2,3-dianilinoquinoxaline. Treatment of S. mansoni infected mice with a single oral 400 mg/kg dose of these drugs resulted in significant worm burden reductions of 52.5% and 40.8%, respectively. CONCLUSIONS/SIGNIFICANCE: The two candidates identified by investigating the MMV malaria box are characterized by good pharmacokinetic profiles, low cytotoxic potential and easy chemistry and therefore offer an excellent starting point for antischistosomal drug discovery and development
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Channelling optics for high quality imaging of sensory hair
A long distance microscope (LDM) is extended by a lens and aperture array. This newly formed channelling LDM is superior in high quality, high-speed imaging of large field of views (FOV). It allows imaging the same FOV like a conventional LDM, but at improved magnification. The optical design is evaluated by calculations with the ray tracing code ZEMAX. High-speed imaging of a 2 × 2 mm(2) FOV is realized at 3.000 frames per second and 1 μm per pixel image resolution. In combination with flow sensitive hair the optics forms a wall shear stress sensor. The optics images the direct vicinity of twenty-one flow sensitive hair distributed in a quadratic array. The hair consists of identical micro-pillars that are 20 μm in diameter, 390 μm in length and made from polydimethylsiloxane (PDMS). Sensor validation is conducted in the transition region of a wall jet in air. The wall shear stress is calculated from optically measured micro-pillar tip deflections. 2D wall shear stress distributions are obtained with currently highest spatiotemporal resolution. The footprint of coherent vortical structures far away from the wall is recovered in the Fourier spectrum of wall shear stress fluctuations. High energetic patterns of 2D wall shear stress distributions are identified by proper orthogonal decomposition (POD)
Sample preparation and processing
Errors made during the sample preparative process contribute
significantly to the total analytical error of immunoassays. Reduction in the magnitude of these errors have been made by improvements in the manualfluid handling systems and mechanization of the individual steps in the process. The mechanization has been stimulated by developments in both computing hardware and software. A laboratory's workflow and workload will indicate the degree of mechanization required
A Limousin Specific Myostatin Allele Affects Longissimus Muscle Area and Fatty Acid Profiles in a Wagyu-Limousin F2 Population
A microsatellite-based genome scan of a Wagyu x Limousin F(2) cross population previously demonstrated QTL affecting LM area and fatty acid composition were present in regions near the centromere of BTA2. In this study, we used 70 SNP markers to examine the centromeric 24 megabases (Mb) of BTA2, including the Limousin-specific F94L myostatin allele (AB076403.1; 415C \u3e A) located at approximately 6 Mb on the draft genome sequence of BTA2. A significant effect of the F94L marker was observed (F = 60.17) for LM area, which indicated that myostatin is most likely responsible for the effect. This is consistent with previous reports that the substitution of Leu for Phe at AA 94 of myostatin (caused by the 415C \u3e A transversion) is associated with increased muscle growth. Surprisingly, several fatty acid trait QTL, which affected the amount of unsaturated fats, also mapped to or very near the myostatin marker, including the ratio of C16:1 MUFA to C16:0 saturated fat (F = 16.72), C18:1 to C18:0 (F = 18.88), and total content of MUFA (F = 17.12). In addition, QTL for extent of marbling (F = 14.73) approached significance (P = 0.05), and CLA concentration (F = 9.22) was marginally significant (P = 0.18). We also observed associations of SNP located at 16.3 Mb with KPH (F = 15.00) and for the amount of SFA (F = 12.01). These results provide insight into genetic differences between the Wagyu and Limousin breeds and may lead to a better tasting and healthier product for consumers through improved selection for lipid content of beef
The Man With The Ladder And The Hose
https://digitalcommons.library.umaine.edu/mmb-vp/5648/thumbnail.jp
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