ABSTRACT- Improper seed germination is a serious challenge for medicinal herbs under drought stress conditions in semi-arid and arid regions. A new group of plant growth regulators known as karrikins have been proved useful to improve seed germination in some plants. In this regard, the effects of karrikin on seed germination and vigor of three medicinals under drought stress were examined. See...

opium poppy (papaver somniferum l.) has two major products: alkaloids in the capsules and the seeds. it is known that opium poppy today contains alkaloid in great quantities. opiate alkaloids and their synthetic derivatives are widely used in medicines which are produced in hundreds of tons for the medicine industry. the study aimed to screen the capsules of six turkish opium poppy lines to eva...

Influence maximization is a key problem seeking to identify users who will diffuse information influence the largest number of other in social network. A drawback that it could be socially irresponsible many whom would harmed, due their demographics, health conditions, or socioeconomic characteristics (e.g., predominantly overweight people influenced buy junk food). Motivated by this and fact s...

Airport detection in synthetic aperture radar (SAR) images has attracted much concern the field of remote sensing. Affected by other salient objects with geometrical features similar to those airports, traditional methods often generate false detections. In order produce airports and suppress influence irrelevant objects, we propose a novel method for airport SAR images. First, line segment det...

Chemical oxidative polymerization of aniline in dilute aqueous acids using an ammonium peroxydisulfate oxidant proceeds via the intermediacy of large, colorless aggregates that act as ‘seeds’ in orchestrating the overall morphology of the product polyaniline. Observed for the first time by continuously monitoring the polymerization by static and dynamic light-scattering (LS) measurements, these...

We present improved techniques for finding homologous regions in DNA and protein sequences. Our approach focuses on the core regions of a local pairwise alignment; we suggest new ways to characterize these regions that allow marked improvements in both specificity and sensitivity over existing techniques for sequence alignment. For any such characterization, which we call a vector seed, we give...

Brachypodium hybridum (2n = 30) is a natural allopolyploid with highly divergent sub-genomes derived from two extant diploid species, B. distachyon (2n = 10) and B. stacei (2n = 20) that differ in chromosome evolution and number. We created synthetic B. hybridum allotetraploids by hybridizing various lines of B. distachyon and B. stacei. The initial amphihaploid F1 interspecific hybrids were ob...

Automation of iterative model building, density modification and refinement in macromolecular crystallography has made it feasible to carry out this entire process multiple times. By using different random seeds in the process, a number of different models compatible with experimental data can be created. Sets of models were generated in this way using real data for ten protein structures from ...