Search results for "SNA"

Molecular characterisation of Galba truncatula, Lymnaea neotropica and L. schirazensis from Cajamarca, Peru and their potential role in transmission …

2012

Abstract Background Human and animal fascioliasis is emerging in many world regions, among which Andean countries constitute the largest regional hot spot and Peru the country presenting more human endemic areas. A survey was undertaken on the lymnaeid snails inhabiting the hyperendemic area of Cajamarca, where human prevalences are the highest known among the areas presenting a "valley transmission pattern", to establish which species are present, genetically characterise their populations by comparison with other human endemic areas, and discuss which ones have transmission capacity and their potential implications with human and animal infection. Methods Therefore, ribosomal DNA ITS-2 an…

A new baseline for fascioliasis in Venezuela: lymnaeid vectors ascertained by DNA sequencing and analysis of their relationships with human and anima…

2011

Abstract Background Human and animal fascioliasis poses serious public health problems in South America. In Venezuela, livestock infection represents an important veterinary problem whereas there appear to be few human cases reported, most of which are passively detected in health centres. However, results of recent surveys suggest that the situation may be underestimated in particular areas. To obtain a baseline for future fascioliasis assessment, studies were undertaken by means of rDNA ITS-2 and ITS-1 and mtDNA cox 1 sequencing to clarify the specific status of Venezuelan lymnaeids, their geographical distribution and fascioliasis transmission capacity, by comparison with other American …

2014

Extreme weather events such as summer heat waves become more frequent owing to global climate change and are predicted to alter disease dynamics. This is because high temperatures can reduce host immune function. Predicting the impact of climate change on host-parasite interactions is, however, difficult as temperature may also affect parasite infective stages and other host characteristics determining the outcome of interaction. Two experiments were conducted to investigate these phenomena in a Lymnaea stagnalis–Echinoparyphium aconiatum (Trematoda) interaction. In the first experiment, the effects of exposure of snails to experimental heat waves [maintenance at 25°C vs. 15°C (control)] wi…

Considerations Regarding the Relevance of Direct Foreign Investments in the Global Economy

2019

Abstract It is well known that the current business world, and also the investments, today are based on the global markets expansion. Contemporary reality shows us the image of a world which is irreversibly evolving towards the businesses globalization and the companies’ internationalization. The internal markets often become overcrowded, and the companies access more profoundly the global marketplace, which not only provides a place for all competitors, but also represents a source of new advantages for all. In the context of globalization the investment activity has gained new dimensions, becoming a global one, with serious implications, which manifest itself over the national economies a…

A Snapshot of the World of Global Multinationals – An Industry Based Analysis of Fortune Global 500 Companies

2017

Abstract For better or for worse, the “corporations rule the world” assertion is nowadays more actual and accurate than ever before, as multinational companies represent the undisputable engine of the globalization process, and the latter continuously (re)creates the background against which global multinationals are flourishing, while reinforcing their “domination”. Since 1995, the Fortune Global 500 ranking (FG 500) annually provides a comprehensive and eloquent image of the world of global multinationals; the merits of the FG 500 ranking go beyond the synchronic approach of the characteristics of global multinationals (in terms of revenues, profits, assets and employees - by sector, indu…

Some Insights on the Changing Architecture of the World’s Top 100 Multinationals

2016

Abstract Premise: globalization represents both the fertile background and the accountable foreground that accompanies the evolution of TNCs/MNEs, within a self-enforcing spiral of co-evolution which gratifies the winners and discards the losers. Argument: UNCTAD’s Top 100 non-financial TNCs/MNEs gathers together, since 1993, some of the most prominent winners of the above mentioned processes, making this instrument one of the best indicators and benchmarks in terms of both globalization and transnationalization – when analyzed at a given moment in time (for a particular year), and even more relevant when analyzed dynamically and by comparison. Context: two major global shifts have occurred…

Lymnaea schirazensis, an Overlooked Snail Distorting Fascioliasis Data: Genotype, Phenotype, Ecology, Worldwide Spread, Susceptibility, Applicability

2011

BackgroundLymnaeid snails transmit medical and veterinary important trematodiases, mainly fascioliasis. Vector specificity of fasciolid parasites defines disease distribution and characteristics. Different lymnaeid species appear linked to different transmission and epidemiological patterns. Pronounced susceptibility differences to absolute resistance have been described among lymnaeid populations. When assessing disease characteristics in different endemic areas, unexpected results were obtained in studies on lymnaeid susceptibility to Fasciola. We undertook studies to understand this disease transmission heterogeneity.Methodology/principal findingsA ten-year study in Iran, Egypt, Spain, t…

Physicochemical characterization of the fifth (C5), sixth (C6), seventh (C7), eighth (C8) and ninth (C9) component of guinea pig complement.

1971

A physicochemical characterization of the purified guinea pig complement components C5 to C9 is given. For this purpose the sedimentation rate, the diffusion coefficient, the molecular weight and the isoelectric point were determined and compared with the values already known for the guinea pig and human complement system. For the determination of the physicochemical parameters gel filtration on Sephadex G-200, ultracentrifugation applying a sucrose density gradient and thin-layer isoelectric focusing were used. By comparing the values of the human and guinea pig complement a remarkable similarity is shown.

Su Santidad el Papa Pío IX, y la semana santa romana de 1866, visto por un ilustre valenciano

2007

Francisco de Paula Ximénez and Marco made a trip to Italy in 1866. He left a chronicle unpublished. The story of his stay in Rome is published, during the Easter of this year. The chronicle of the celebrations reveals the fascination that exerted Pío IX on the travelling ones and it informs to us on the organization into which it was left of the Pontifical States.Francisco de Paula Ximénez y Marco hizo un viaje a Italia en 1866. Dejó una crónica inédita. Se publica el relato de su estancia en Roma, durante la semana santa de este año. La crónica de las celebraciones revela la fascinación que ejercía Pío IX sobre los peregrinos y nos informa sobre la organización de lo que quedaba de loa Est…

Transnational Social Fields

2018

This chapter excavates Bourdieu’s theoretical insights concerning political sociology to develop a theory of transnational structuration processes. The early Bourdieu implicitly imagined the state as a nationally bounded actor. Only later in his career did he begin to grapple with issues such as globalization, transnationalism, and neoliberalism; and it is this later germ of ideas that this chapter develops. Transnational social fields, this chapter argues, are not reducible to institutional or organizational structures. They require a more holistic analysis of institutions and their underpinnings. To provide an example of how Bourdieu’s political sociology can be extended to transnational …