In a recent Letter [1], Rigamonti et al. claim that the bootstrap kernel (BSK) [2] of time dependent density functional theory does not yield reliable absorption spectra and that their kernel, to which they refer as the revised bootstrap (RBO) kernel, leads to significantly improved spectra. In this Comment we demonstrate that these claims are overstated and that these authors were unfortunatel...

Kazakhstan has very rich walnut genetic resources; however there is no ongoing walnut breeding program. Kazakhstan government has several projects in cooperation with Russia, USA, Bulgaria, Czech Republic and Poland for plant breeding purposes. In the present research walnut genetic resources originated from Jabağıl, Tulkıbas, Sayram, Lenger, and Botanical Garden of International Hodja Ahmet Ye...

a kernel $j$ of a digraph $d$ is an independent set of vertices of $d$ such that for every vertex $w,in,v(d),setminus,j$ there exists an arc from $w$ to a vertex in $j.$in this paper, among other results, a characterization of $2$-regular circulant digraph having a kernel is obtained. this characterization is a partial solution to the following problem: characterize circulant digraphs which hav...

In this study, morphological characteristics as well as ten of Simple Sequence Repeat (SSRs) loci were used to analyze the genetic diversity and relationships among 12 natural populations of Persian walnut (Juglans regia L.) in northern and western regions of Iran. The results showed that there was a high level of genetic diversity among the walnuts, both in terms of their SSRs loci as well as ...

this investigation was carried out in safiabad agricultural research center (dezful-iran) for two years in order to introduce adapted pecan cultivars in subtropical regions of iran. gratex, peruque, comanche, 10j, wichita, mohawk, mahan, stuart, graking, choctaw, apache, 6m and 3j cultivars were evaluated for some of their morphological and phenological characteristics. among cultivars evaluate...

OBJECTIVES To evaluate optical coherence tomographic elastography as a method for assessing the elastic properties of atherosclerotic plaque and the parameters that influence interpretation. METHODS Phantoms and aorta were examined in vitro to quantify speckle modulation and measure the displacement and strain maps. A correlation method was used as a speckle tracking technique for measuring a...

Studies were conducted on 20 rice hybrids with checks to assess the genetic variability, heritability and correlation among the genotypes for fifteen grain quality characters and grain yield. Seeds collected from the thirteen hybrids and check varieties were used for grain quality analysis. To assess the cooking qualities, a total of 30 unbroken milled grains were measured for their length and ...

One medium-grain rice variety, six long-grain varieties, and two long-grain hybrids, harvested from 13.4 to 26.0% moisture content (MC) from Keiser, Ark., Stuttgart, Ark., and Alvin, Texas, were used to determine the influence of harvest location and MC on kernel-to-kernel breaking force distributions (BFDs). Harvest MC affected BFDs, however, a greater influence was imposed by the growing loca...