2,574 research outputs found
Strain dependence of ultrasound speed in bovine articular cartilage under compression in vitro
Author name used in this publication: H. Y. LingAuthor name used in this publication: Y. P. ZhengAuthor name used in this publication: S. G. PatilTitle on author's file: Study on strain dependence of ultrasound speed in bovine articular cartilage under compression in vitro2007-2008 > Academic research: refereed > Publication in refereed journalAccepted ManuscriptPublishe
Optimization of RAPD-PCR reaction system for genetic relationships analysis of 15 camellia cultivars
With orthogonal analysis by L27(36), the random amplified polymorphic DNA (RAPD)-PCR optimization reaction system for camellia were obtained. Results showed that the optimization system was 10×PCR Buffer (2.5 L), 25 mM MgCl2 (2.5 L), 2.5 mM dNTPs (2.0 L), 20 M primer (1.0 L), Tag (1.5 U), temple DNA (40 ng or so) and added ddH2O to the total volume 25 uL; suitable annealing temperature was 36°C. With the optimized system and fifteen 10 nt random primers, we analyzed 15 camellia cultivars and observed 102 clear amplified loci, in which polymorphic loci were 79 while the percentage of polymorphic loci were 77.54%. Cluster analysis showed that the four groups were divided at the point 0.75 of similarity coefficient, indicating relatively high genetic diversity. We also found that the gene controlling petal color may play an important role in RAPD analysis. Moreover, genetic diversities based on RAPD analysis could be clearly reflected by morphological traits among 15 camellia cultivars. This study showed the RAPD optimization system was suitable and RAPD molecular marker was effective and useful tool for detection of genetic relationships among camellia cultivars
Radiative Transfer Modeling of Lyman Alpha Emitters. II. New Effects in Galaxy Clustering
We study the clustering properties of z~5.7 Lyman-alpha emitters (LAEs) in a
cosmological reionization simulation with a full Lya radiative transfer
calculation. Lya radiative transfer substantially modifies the intrinsic Lya
emission properties, compared to observed ones, depending on the density and
velocity structure environment around the Lya emitting galaxy. This
environment-dependent Lya selection introduces new features in LAE clustering,
suppressing (enhancing) the line-of-sight (transverse) density fluctuations and
giving rise to scale-dependent galaxy bias. In real space, the contours of the
three-dimensional two-point correlation function of LAEs appear to be
prominently elongated along the line of sight on large scales, an effect that
is opposite to and much stronger than the linear redshift-space distortion
effect. The projected two-point correlation function is greatly enhanced in
amplitude by a factor of up to a few, compared to the case without the
environment dependent selection effect. The new features in LAE clustering can
be understood with a simple, physically motivated model, where Lya selection
depends on matter density, velocity, and their gradients. We discuss the
implications and consequences of the effects on galaxy clustering from Lya
selection in interpreting clustering measurements and in constraining cosmology
and reionization from LAEs.Comment: 31 pages, 26 figures, revised according to the referee's comments,
more discussions and tests, published in Ap
Machine learning approaches for cyanobacteria bloom prediction using metagenomic sequence data, a case study
Identifying the key genes and pathways in the progression of hepatitis C virus induced hepatocellular carcinoma using a systems biology approach
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