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  • Open Access

    ARTICLE

    Utility of taxonomic unit and life form in the analysis of plant diversity patterns in a temperate meadow steppe, China

    Han DY1,2, YF Yang2

    Phyton-International Journal of Experimental Botany, Vol.87, pp. 113-122, 2018, DOI:10.32604/phyton.2018.87.113

    Abstract Rapid and precise assessment of biodiversity is a central issue in conservation biology and biodiversity science. Higher taxonomic units and life form-based morphospecies were utilised to assess plant diversity patterns at the habitat scale in temperate meadow steppe, Songnen Plain, China. Patch area, taxonomic composition (families and genera) and life form (based on Raunkiaer’s life forms, and stem and root growth forms) were recorded in five communities. Taxonomic unit-based hierarchical diversity indices (HDI) and life form-based hierarchical diversity indices (HLDI) were calculated. Twenty-six families, 67 genera, and 87 species were recorded in the five communities. HDI and HLDI were significantly… More >

  • Open Access

    ARTICLE

    Molecular differentiation of Xoconostle (Opuntia spp.) using AFLP molecular markers

    García-Zambrano EA1, MC Ojeda-Zacarías1, JG Gutiérrez-Soto1, SR Sinagawa-García1, A Gutiérrez-Díez1, J Martínez-de la Cerda1, JA Pedroza-Flores1, C Gallegos-Vázquez2, JI García-Zambrano3

    Phyton-International Journal of Experimental Botany, Vol.87, pp. 87-93, 2018, DOI:10.32604/phyton.2018.87.087

    Abstract The technologies based on molecular markers of DNA are the most advanced and possibly the most effective and accurate means to identify genetic variation. The objective of this study was to use molecular genetic markers namely AFLP as a tool for the molecular differentiation of 36 accessions of xoconostle collected in the Centro Regional Universitario Centro Norte of the Universidad Autónoma de Chapingo (CRUCEN-UACh.). DNA extraction was performed by the method of cellular ruptor using FastDNA® Kit, and quantification of purity and yield of DNA was carried out through the Nanodrop 2000. It was observed that the DNA concentrations ranged… More >

  • Open Access

    ARTICLE

    Morphological diversity of wild and semi-wild chili populations of Tabasco and the north of Chiapas States, Mexico

    Gálvez Muñoz YA1, E Martínez Moreno2, S Ramírez Vera2, L Latournerie Moreno3, JM Lesher Gordillo1, G Castañón Nájera1*

    Phyton-International Journal of Experimental Botany, Vol.87, pp. 60-67, 2018, DOI:10.32604/phyton.2018.87.060

    Abstract The research was conducted with the aim to identify the variability in situ of wild and semi-wild morphotypes of Capsicum spp. that were found growing in different places of Tabasco and the north of Chiapas States. Morphotypes included “Amashito” (five types), “Pico de paloma” (two types), “Garbanzo”, “Ojo de sapo”, “Ojo de cangrejo”, “Colmillo de lagarto” and “Corazón de pollo”. Such characterization is important because there is an extensive variability of forms cultivated in the country, resulting from a wide range of agroecological diversity as well as diverse forms, colours, flavors and sizes that constitute a valuable collection of genes… More >

  • Open Access

    ARTICLE

    Nanobiodiversity: The Potential of Extracellular Nanostructures

    Felipe Orozco1‡, Brian Alfaro-González1‡, Yendry Corrales Ureña1, Karolina Villalobos1, Angie Sanchez1, Francisco Bravo1, José Roberto Vega1, Orlando Argüello-Miranda1†*

    Journal of Renewable Materials, Vol.5, No.3-4, pp. 199-207, 2017, DOI:10.7569/JRM.2017.634110

    Abstract As an outcome of millions of years of evolution, biological systems have developed different methods to interact with their surroundings. Many of these adaptations, such as secretions, light-interacting surfaces, biochemical active compounds, and many other survival strategies, are phenomena occurring at the nanometric scale. In this review, we describe how extracellular nanometric structures are responsible for manipulating energy and matter, creating some of the emergent properties of life. Iridescent colors in birds’ feathers, the manipulation of wettability of insects’ exoskeletons, the adhesive properties of nanopatterned secretions and the ability to polarize light are examples of the potential of extracellular nanostructures.… More >

  • Open Access

    ARTICLE

    Self-Adaptive Differential Evolution Based on the Concept of Population Diversity Applied to Simultaneous Estimation of Anisotropic Scattering Phase Function, Albedo and Optical Thickness

    F. S. Lobato1, V. Steffen Jr2, A. J. Silva Neto3

    CMES-Computer Modeling in Engineering & Sciences, Vol.69, No.1, pp. 1-18, 2010, DOI:10.3970/cmes.2010.069.001

    Abstract Differential Evolution Algorithm (DE) has shown to be a powerful evolutionary algorithm for global optimization in a variety of real world problems. DE differs from other evolutionary algorithms in the mutation and recombination phases. Unlike some other meta-heuristic techniques such as genetic algorithms and evolutionary strategies, where perturbation occurs in accordance with a random quantity, DE uses weighted differences between solution vectors to perturb the population. Although the efficiency of DE algorithm has been proven in the literature, studies indicate that the efficiency of the DE methods is sensitive to its control parameters (perturbation rate and crossover rate) and there… More >

  • Open Access

    ARTICLE

    Verifiable Diversity Ranking Search Over Encrypted Outsourced Data

    Yuling Liu1,*, Hua Peng1, Jie Wang2

    CMC-Computers, Materials & Continua, Vol.55, No.1, pp. 37-57, 2018, DOI:10.3970/cmc.2018.055.037

    Abstract Data outsourcing has become an important application of cloud computing. Driven by the growing security demands of data outsourcing applications, sensitive data have to be encrypted before outsourcing. Therefore, how to properly encrypt data in a way that the encrypted and remotely stored data can still be queried has become a challenging issue. Searchable encryption scheme is proposed to allow users to search over encrypted data. However, most searchable encryption schemes do not consider search result diversification, resulting in information redundancy. In this paper, a verifiable diversity ranking search scheme over encrypted outsourced data is proposed while preserving privacy in… More >

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