نتایج جستجو برای: diversity

تعداد نتایج: 188533  

Journal: :Int. J. Applied Earth Observation and Geoinformation 2015
Yishuo Huang

12 Agricultural activities mainly occur in rural areas; recently, ecological conservation 13 and biological diversity are being emphasized in rural communities to promote 14 sustainable development for rural communities, especially for rural communities in 15 Taiwan. Therefore, since 2005, many rural communities in Taiwan have compiled 16 their own development strategies in order to create thei...

2002
Joyce C. Lee

The roles and responsibilities of planners in managing culturally diverse cities are beginning to be articulated in the literature. “Visioning,” as planners have used it in recent years, has the potential to help realize “multicultural planning” because of its intentions to involve broad public participation and represent diverse interests, thereby promoting equity and facilitating democracy. T...

Journal: :The Journal of infectious diseases 2010
Carl D Kirkwood

The successful development and implementation of rotavirus vaccines will have a significant impact on rotavirus-induced gastroenteritis in children worldwide. However, this introduction will increase the immune pressure against wild-type rotavirus strains circulating in the community, altering the forces and balances that drive rotavirus evolution. There is concern that antigenically distinct n...

2004
Nebojsa Jojic Vladimir Jojic David Heckerman

Haplotypes, the global patterns of DNA sequence variation, have important implications for identifying complex traits. Recently, blocks of limited haplotype diversity have been discovered in human chromosomes, intensifying the research on modelling the block structure as well as the transitions or co-occurrence of the alleles in these blocks as a way to compress the variability and infer the as...

2004
W. Küper H. Kreft J. Nieder N. Köster W. Barthlott

Aim Epiphytes contribute up to 30% to the number of vascular plant species in certain global biodiversity hotspots, e.g. the Ecuadorian Andes. However, their large scale diversity patterns are still discussed on the base of results from a few, local epiphyte inventories. Consequently, explanatory models on epiphyte diversity concentrate on the impact of local climate on small scale epiphyte spe...

2013
Jacopo Grilli Samir Suweis Amos Maritan

Modern ecology has re-emphasized the need for a quantitative understanding of the original ’survival of the fittest theme’ based on analyzis of the intricate trade-offs between competing evolutionary strategies that characterize the evolution of life. This is key to the understanding of species coexistence and ecosystem diversity under the omnipresent constraint of limited resources. In this wo...

Journal: :Artificial life 1997
Peter T. Hraber Terry Jones Stephanie Forrest

Echo is a generic ecosystem model in which evolving agents are situated in a resource-limited environment. The Echo model is described, and the behavior of Echo is evaluated on two well-studied measures of ecological diversity: relative species abundance and the species-area scaling relation. In simulation experiments, these measures are used to compare the behavior of Echo with that of a neutr...

Journal: :Journal of theoretical biology 2005
F Ellis McKenzie William H Bossert

The within-host and between-host dynamics of malaria are linked in myriad ways, but most obviously by gametocytes, the parasite blood forms transmissible from human to mosquito. Gametocyte dynamics depend on those of non-transmissible blood forms, which stimulate immune responses, impeding transmission as well as within-host parasite densities. These dynamics can, in turn, influence antigenic d...

2015
Amr A. A. Gamil Øystein Evensen Stephen Mutoloki Pierre Roques

The wide host range and antigenic diversity of aquabirnaviruses are reflected by the presence of a collection of isolates with different sero- and genotypic properties that have previously been classified as such. Differences in cytopathogenic mechanisms and host responses induced by these isolates have not been previously examined. In the present study, we investigated infection profiles induc...

Journal: :Journal of Korean Medical Science 1993
C. S. Park I. C. Kim J. B. Lee M. S. Choi S. B. Choi W. H. Chang I. Kim

Twenty-four monoclonal antibodies were produced by immunizing BALB/c mice with Rickettsia tsutsugamushi Boryong strain and used for the analysis of antigenic characteristics of R.tsutsugamushi Boryong strain and antigenic heterogeneity of R.tsutsugamushi by indirect immunofluorescent(IF) test. R. tsutsugamushi Kato, Karp, Gilliam, TA686, TA716, TA763, TC586, TH1817, and Boryong were used for th...

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