419 research outputs found
Determination of some Amino Acids in the Central Nervous System by Thin-layer Chromatography
Free amino acids (glutamic acid, y-amino-butyric add and
glycine) from the central nervous system of albtno mice have been
indentified and determined quantitatively. This method i8 convenient
for determtnation of certain amino acids iln 1small samples
of nervous tissue (50-1000 mg).
The procedure ios simrpLe, economical and rapid. Separation on
the chromatogram is good and reproduciible, due to a specific
saturation of the chromatographic-tank atmospheĀ·re
Dermatoglyphics as a possible morphological biomarker in myopia: analysis of finger ridge counts and fluctuating asymmetry
Background: The aim of this study is to provide the first analysis of finger ridge counts and fluctuating asymmetry in myopia, in order to evaluate dermatoglyphic role as a morphological biomarker.
Materials and methods: Study sample consisted of 102 participants recruited from freshman studentsā population of the University of PriÅ”tina-Kosovska Mitro- vica. Prints were taken by standard ink and paper method. Differences in mean ridge counts between examined groups were analysed by ANOVA analysis of variance. Fluctuating asymmetry assessment was performed by using correlation method (p < 0.05).Ā
Results: Analysis has identified myopic males as the group with the most pro- minent differences of examined dermatoglyphic parameters. Myopic males, compared to controls, have significantly higher ridge counts for left and right ring and little finger, as well as total ridge count. Also, this group has recorded significant difference in fluctuating asymmetry correlation score for middle finger, and borderline significance for thumb and ring finger.Ā
Conclusions: Overall findings of this study have indicated that dermatoglyphics might serve as a morphological biomarker, especially in myopic males, selecting them as the group with dermatoglyphic differences that might be suggestive of higher developmental instability. Although promising, the present results should be considered as preliminary until future investigations replicate them in a larger sample.
The ATLAS-SPT Radio Survey of Cluster Galaxies
Using a high-performance computing cluster to mosaic 4,787 pointings, we have
imaged the 100 sq. deg. South Pole Telescope (SPT) deep-field at 2.1 GHz using
the Australian Telescope Compact Array to an rms of 80 Jy and a resolution
of 8". Our goal is to generate an independent sample of radio-selected galaxy
clusters to study how the radio properties compare with cluster properties at
other wavelengths, over a wide range of redshifts in order to construct a
timeline of their evolution out to . A preliminary analysis of the
source catalogue suggests there is no spatial correlation between the clusters
identified in the SPT-SZ catalogue and our wide-angle tail galaxies.Comment: 9 pages, 4 figures. Submitted to Proceedings of Science for "The many
facets of extragalactic radio surveys: towards new scientific challenges",
Bologna, Italy 20-23 October 2015 (EXTRA-RADSUR2015
VinÄa-Belo Brdo, a late neolithic site in Serbia consideration of the macro-botanical remains as indicators of dietary habits
The analysis of macro-botanical remains from the late Neolithic site of VinÄa-Belo Brdo has provided first information on the range of crops and wild plants present at the site, and revealed their potential role as foodstuffs. The abundance and distribution of certain plant taxa across different archaeological deposits suggests to what extent they were used within the settlement. The analyzed plant remains also offer insight into the types of food consumed by VinÄa residents and serve as a basis for inferring the seasonality and method of food provision/production and activities related to plant use. [Projekat Ministarstva nauke Republike Srbije, br. 177012: Society, spiritual and material culture and communications in prehistory and early history of the Balkans
Mesiodens in a 14-Month-Old Child
Meziodens je prekobrojni zub smjeÅ”ten izmeÄu gornjih srediÅ”njih inciziva. Njegova je ÄestoÄa u trajnoj denticiji izmeÄu 0,5-2%, ameziodens mlieÄne denticije izrazito je rijetka pojava. Prikazan je sluÄaj meziodensa u ÄetrnaestmjeseÄne djevojÄice.Mesiodens is supernumerary tooth between maxillary central incisors. The prevalence of mesiodens in permanent dentition is 0.5 2% and in primary dentition even more rare. The case of mesiodens in a 14-month-old female child is shown
The Spatial Correlation of Bent-Tail Galaxies and Galaxy Clusters
We have completed a deep radio continuum survey covering 86 square degrees of
the Spitzer-South Pole Telescope deep field to test whether bent-tail galaxies
are associated with galaxy clusters. We present a new catalogue of 22 bent-tail
galaxies and a further 24 candidate bent-tail galaxies. Surprisingly, of the 8
bent-tail galaxies with photometric redshifts, only two are associated with
known clusters. While the absence of bent-tail sources in known clusters may be
explained by effects such as sensitivity, the absence of known clusters
associated with most bent-tail galaxies casts doubt upon current models of
bent-tail galaxies.Comment: Accepted by MNRA
20 cm VLA Radio-Continuum Study of M31 - Images and Point Source Catalogues
We present a series of new high-sensitivity and high-resolution
radio-continuum images of M31 at \lambda=20 cm (\nu=1.4 GHz). These new images
were produced by merging archived 20 cm radio-continuum observations from the
Very Large Array (VLA) telescope. Images presented here are sensitive to rms=60
\mu Jy and feature high angular resolution (<10"). A complete sample of
discrete radio sources have been catalogued and analysed across 17 individual
VLA projects. We identified a total of 864 unique discrete radio sources across
the field of M31. One of the most prominent regions in M31 is the ring feature
for which we estimated total integrated flux of 706 mJy at \lambda=20 cm. We
compare here, detected sources to those listed in Gelfand et al. (2004) at
\lambda=92 cm and find 118 sources in common to both surveys. The majority
(61%) of these sources exhibit a spectral index of \alpha <-0.6 indicating that
their emission is predominantly non-thermal in nature. That is more typical for
background objects.Comment: 28 pages, 25 figures, accepted for publication in the Serbian
Astronomical Journa
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