1,312 research outputs found

    Freedom to Trade, Free Trade and Laissez-Faire: Latin American Approaches to Economic Liberalism in the Nineteenth Century

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    There were at least four stages in the nineteenth-century transition from mercantilism to "free trade". The first involved the freedom to trade with any country; the second led to the application of the same tariffs on imports from all countries. The third required the sharp reduction of the tariff rates themselves. The fourth assumed the subordination of the state to the market. This presentation explores how far Latin American countries advanced along this continuum in the nineteenth century

    High-intensity interval walking in combination with acute green tea extract supplementation reduces postprandial blood glucose concentrations in physically inactive participants

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    Background: Exercise and green tea supplementation have been shown to have the potential to improve postprandial blood glucose concentrations, but past interventions have not often investigated attainable and time effective exercise protocols. Aim: The purpose of this study was to investigate the effects of interval walking exercise and acute green tea extract supplementation on the glycaemic response to an oral glucose tolerance test (OGTT). Method: Twelve physically inactive participants (nine male, three female, age: 22 ± 1 years; body mass: 81.2 ± 16.3 kg; stature: 175.7 ± 9.6 cm; body mass index (in kg/m2): 26.2 ± 4.3) underwent a 2-h OGTT immediately following i) no intervention (REST), ii) placebo and exercise (EX-PLAC), iii) green tea extract supplementation and exercise (EX-GTE), in a random order. The walking exercise consisted of 6 × 1 min of brisk walking (7.92 ± 0.56 km/h) separated by 1 min of slower walking (4.8 km/h). Differences between groups were identified using magnitude-based inferences. Results: The EX-GTE intervention resulted in a ∼9% most likely beneficial effect on blood glucose area under the curve response to the OGTT (702.18 ± 76.90 mmol/L–1·120 min–1) compared with REST (775.30 ± 86.76 mmol/L–1·120 min–1), and a very likely beneficial effect compared with the EX-PLAC (772.04 ± 81.53 mmol/L–1·120 min–1). Conclusion: These data suggest that an EX-GTE intervention can reduce postprandial glucose concentrations in physically inactive individuals

    Real wages inequality and globalization in Latin America before 1940

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    La Historia Económica en Latinoamérica. Edición a cargo de Pablo Martín Aceña, Adolfo Meisel, Carlos Newland.Editada en la Fundación Empresa PúblicaHacia 1914 existían notables diferencias económicas entre los países del Cono Sur y Cuba y el resto de América Latina. El artículo indaga las razones de estas diferencias, cuando aparecieron, así como la distancia existente entre los países latinoamericanos, los de la cuenca mediterránea y el líder industrial. Se ocupa de examinar el papel que desempeñaron las fuerzas demográficas, la localización geográfica y el grado de globalización e integración económica. El trabajo utiliza nuevos datos de salarios reales y precios relativos de los factores de siete países latinoamericanos y de tres regiones mediterráneas. Estos datos se comparan con la información disponible para Gran Bretaña y los Estados Unidos.By 1914, there were huge economic gaps between the Soutbem Cone plus Cuba and the rest of Latin America. Can they be explained by the varying ability of these countries to exploit the first great globalization boom afier about 1870? Or did the gaps appear much earlier? And what about the gaps between Latin America and the Mediterranean, let alone with industrial leaders like Britain? What role did geographic isolation, globalization and demographic forces play in the process? Conventional GDP estimates are much too coarse to confront these questions. This essay uses a new data base on real wages and relative factor prices for seven Latin American and three Mediterranean regions, the latter being a source of so many of immigrants for the former. These ten regions, plus comparative information firom Britain and the United States, form the data base for the paper.Publicad

    Potent and Broad Neutralization of HIV-1 by a Llama Antibody Elicited by Immunization

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    Llamas (Lama glama) naturally produce heavy chain–only antibodies (Abs) in addition to conventional Abs. The variable regions (VHH) in these heavy chain–only Abs demonstrate comparable affinity and specificity for antigens to conventional immunoglobulins despite their much smaller size. To date, immunizations in humans and animal models have yielded only Abs with limited ability to neutralize HIV-1. In this study, a VHH phagemid library generated from a llama that was multiply immunized with recombinant trimeric HIV-1 envelope proteins (Envs) was screened directly for HIV-1 neutralization. One VHH, L8CJ3 (J3), neutralized 96 of 100 tested HIV-1 strains, encompassing subtypes A, B, C, D, BC, AE, AG, AC, ACD, CD, and G. J3 also potently neutralized chimeric simian-HIV strains with HIV subtypes B and C Env. The sequence of J3 is highly divergent from previous anti–HIV-1 VHH and its own germline sequence. J3 achieves broad and potent neutralization of HIV-1 via interaction with the CD4-binding site of HIV-1 Env. This study may represent a new benchmark for immunogens to be included in B cell–based vaccines and supports the development of VHH as anti–HIV-1 microbicides

    Tour guiding, organisational culture and learning: lessons from an entrepreneurial company

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    This paper examines the impacts of organisational culture on the learning and development of tour guides. Drawing on a case study of a small entrepreneurial tour company, the paper considers the nature of the organisation's culture, the tours it provides, including their narrative contents and the processes of organisational learning and socialisation. The paper suggests that the development of a learning culture within such an organisation may benefit from the provision of appropriate learning opportunities among the guides and facilitators who coordinate guide development

    Brazil’s ambitions and the new world order

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    Talk the talk, walk the walk: Defining Critical Race Theory in research

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    Over the last decade there has been a noticeable growth in published works citing Critical Race Theory (CRT). This has led to a growth in interest in the UK of practical research projects utilising CRT as their framework. It is clear that research on 'race' is an emerging topic of study. What is less visible is a debate on how CRT is positioned in relation to methodic practice, substantive theory and epistemological underpinnings. The efficacy of categories of data gathering tools, both traditional and non-traditional is a discussion point here to explore the complexities underpinning decisions to advocate a CRT framework. Notwithstanding intersectional issues, a CRT methodology is recognisable by how philosophical, political and ethical questions are established and maintained in relation to racialised problematics. This paper examines these tensions in establishing CRT methodologies and explores some of the essential criteria for researchers to consider in utilising a CRT framework. © 2012 Copyright Taylor and Francis Group, LLC

    Production, characterization, and antigen specificity of recombinant 62-71-3, a candidate monoclonal antibody for rabies prophylaxis in humans

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    Rabies kills many people throughout the developing world every year. The murine monoclonal antibody (mAb) 62-71-3 was recently identified for its potential application in rabies postexposure prophylaxis (PEP). The purpose here was to establish a plant-based production system for a chimeric mouse-human version of mAb 62-71-3, to characterize the recombinant antibody and investigate at a molecular level its interaction with rabies virus glycoprotein. Chimeric 62-71-3 was successfully expressed in Nicotiana benthamiana. Glycosylation was analyzed by mass spectroscopy; functionality was confirmed by antigen ELISA, as well as rabies and pseudotype virus neutralization. Epitope characterization was performed using pseudotype virus expressing mutagenized rabies glycoproteins. Purified mAb demonstrated potent viral neutralization at 500 IU/mg. A critical role for antigenic site I of the glycoprotein, as well as for two specific amino acid residues (K226 and G229) within site I, was identified with regard to mAb 62-71-3 neutralization. Pseudotype viruses expressing glycoprotein from lyssaviruses known not to be neutralized by this antibody were the controls. The results provide the molecular rationale for developing 62-71-3 mAb for rabies PEP; they also establish the basis for developing an inexpensive plant-based antibody product to benefit low-income families in developing countries.—Both, L., van Dolleweerd, C., Wright, E., Banyard, A. C., Bulmer-Thomas, B., Selden, D., Altmann, F., Fooks, A. R., Ma, J. K.-C. Production, characterization, and antigen specificity of recombinant 62-71-3, a candidate monoclonal antibody for rabies prophylaxis in humans
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