Differentiation is an epigenetic process which is installed by changes of transcriptional programs over successive cellular divisions. A number of studies have reported the effects of biochemical modifications of chromatin (DNA and chromatin proteins) on the regulation of transcription. Although, these studies are able to explain how transcription of a given gene is regulated (toward activation...

background india’s health sector witnessed some major policy changes in 1990s that aimed at making health services more accessible to the population.   methods in this paper, i tried to present some preliminary results of the significant changes that occurred between 1995/6 and 2004, especially in relation to the question of access to healthcare for the poor and rural population using data from...

Chinese privet, Ligustrum sinense Lour., is an invasive shrub within riparian areas of the southeastern United States. Biological control is considered the most suitable management option for Chinese privet. The potential host range of the lace bug, Leptoypha hospita Drake et Poor, was evaluated on the basis of adult feeding and oviposition, combined oviposition-nymphal development no-choice te...

Recent modeling studies exploring the effect of consumers' adaptivity in diet composition on food web complexity invariably suggest that adaptivity in foraging decisions of consumers makes food webs more complex. That is, it allows for survival of a higher number of species when compared with non-adaptive food webs. Population-dynamical models in these studies share two features: parameters are...

Euparyphium albuferensis and Echinostoma friedi cercarial infectivity to four species of sympatric snails was examined under single- or multiple-choice laboratory conditions to show the level of parasite-snail host compatibility. Radix peregra, Lymnaeafuscus, Physella acuta and Gyraulus chinensis act as second intermediate hosts of both parasite species although different cercarial transmission...

The defense hypothesis is commonly used to explain the adaptive role of metal hyperaccumulation. We tested this hypothesis using two Brassicaceae congeneric species: Alyssum pintodasilvae, a Ni hyperaccumulator, and the non-accumulator Alyssum simplex both growing on serpentine soils in Portugal. Artificial diet disks amended with powdered leaves from each plant species were used to compare the...

Salmonella enterica serotypes are one of the most important food borne pathogens and significant public health concerns around the world in humans and other animal species. A total of eighty three epidemiologically unrelated clinical isolates of Salmonella enterica serovars were subjected to antimicrobial susceptibility testing. Eleven isolates (13.1%) which were resistant to at least 4 groups ...

Climate change and uncertain economies challenge small Native communities of the North American Arctic, with their reliance on local fish and wildlife resources. Methodological boundaries of single-discipline analyses limit the contribution of academic research to the real-world questions facing Arctic residents. Oversimplified assumptions and lack of data hamper mainstream economic approaches ...

Strategic planning, product design and marketing decisions often require a thorough understandinq of consumers' preferences and choice behaviors. This paper describes the use of the Analytic Hierarchy Process (AHP) for eliciting preferences by questionnaire. Using AHP, consumers can comfortably provide quantitative measures of numerous, diverse and intangible influences on their choices. The pr...