Search results for "Colon"
showing 10 items of 2038 documents
Historic constructions of the early multinational: on power, politics and culture in Pan Am narratives
2018
This paper examines how Pan American World Airways (Pan Am) - an early incarnation of a multinational enterprise (MNE) - developed its image as an international company. In particular, we examine how the company developed and managed potentially conflicting narratives, including the modernising US company and the airline of 'the Americas' (specifically South America); the carrier of US national interests and the politically neutral actor serving to unify cultures; the purveyor of exotic experiences and the pioneer of modernism. Through a focus on organisational narratives, we reveal the powerful influence of such story telling (through design and serendipity) on images of the peoples and co…
Pluriversalizar los regímenes globales de conocimiento: ¿Puede el Análisis del Discurso sociológico contribuir a estudios Decoloniales?
2020
In this paper we discuss the perspective of Sociology of Knowledge Approach to Discourse (SKAD) as a possible strategy applicable to studies framed by decolonial thought. The reflection is approached by comparing key concepts of both perspectives, such as discourse, power and knowledge, as well as their methodological premises. The results allow us to point out potentials of SKAD as a conceptual-methodological reference for investigations towards decoloniality, e.g. the SKAD analysis dimensions patterns of interpretation and narrative structure. However, possible limitations of the SKAD with respect to the design and the realization of decolonial studies were also revealed, particularly in …
The Lord’s Resistance Army and the arms that brought the Lord
2019
This article develops the notion of polyphonic silence as a means for thinking through the ethical and political ramifications of ethnographically encountering and writing about silenced violent pasts. To do so, it analyses and contrasts the silence surrounding two periods of extreme violence in northern Uganda: 1) the northern Ugandan war (1986–2006), which is contemporarily often shrouded by silence, and 2) the early decades of colonial and missionary expansion, which the Catholic church silences in its commemoration of the death of two Acholi catechists in 1918. Employing the notion of polyphony, the article describes how neither of these silences is a mere absence of narration. Instead,…
Algunas reflexiones sobre el significado de Hernán Cortés a finales del Antiguo Régimen: Discursos de poder, identidad y usos de la historia
2016
This article aims to reflect on the construction of identities about the conqueror Hernan Cortes in the Late Eighteenth Century. It deals with the different channels which were used to transmit his image and to build the myth of Cortes. This approach allows us to pay attention to the connections and relationships between the individual and the collective scopes. It focuses on how the interests of different historical actors (peninsular Spaniards) were projected on Cortes as a symbol of the modern subject. The political uses of Cortes and his historical uniqueness allow us to establish connections between the national question, colonialism, the production of discourses of power and the trans…
Mobility in and of the Empire: A Colonialist History of Mobility
2021
Mobility is freedom. Freedom is power. Those who wield control over the mobility of others control their freedom. The global reach of this control was first evident in the history of colonialism. The empire both incentivized and restricted travel, depending upon who aligned with the colonial vision of the world. Unfreedom is a situation when there is no evident bondage but there is still no exercise of freedom. Fast forward from the times of the European empires, the contemporary forms of colonialism institutionalized this. Television shows, social media, and the internet made people unfree to aspirations that would truly liberate them but rather glued them to shallow pursuits. In this intr…
Growth potential of Listeria monocytogenes strains in mixed ready-to-eat salads
2009
In this study, a microbiological challenge test in three artificially contaminated retail mixed mayonnaise-based ready-to-eat salads stored at refrigerator temperatures (3°C and 7°C) for 48h was carried out. Shrimp-tomato salad, smoked ham salad and garlic cheese salad were separately contaminated by a suspension of particular Listeria monocytogenes strains. The number of L. monocytogenes, Enterobacteriaceae, staphylococci and total plate count (CFU/g) was determined. Listeria monocytogenes growth potential in the salads was calculated and evaluated. A significant increase in total plate count and L. monocytogenes count throughout storage of all three investigated salads was found. Enteroba…
Interspecific attraction between ground-nesting songbirds and ants: the role of nest-site selection
2021
Abstract Background Interspecific interactions within ecological networks can influence animal fitness and behaviour, including nest-site selection of birds and ants. Previous studies revealed that nesting birds and ants may benefit from cohabitation, with interspecific attraction through their nest-site choice, but mutual interactions have not yet been tested. We explored a previously undescribed ecological link between ground-nesting birds and ants raising their own broods (larvae and pupae) within the birds’ nests in a temperate primeval forest of lowland Europe. We tested whether the occurrence of ant broods within bird nests resulted from a mutual or one-sided interspecific attraction …
Tributyltin(IV) ferulate, a novel synthetic ferulic acid derivative, induces autophagic cell death in colon cancer cells: From chemical synthesis to …
2020
Ferulic acid (FA) is a natural phenolic phytochemical that has low toxicity and exhibits therapeutic effects against various diseases, behaving as an antioxidant. FA also displays modest antitumor properties that have been reported at relatively high concentrations. With the aim of improving the anti-tumor efficacy of FA, we synthesized the novel compound tributyltin(IV) ferulate (TBT-F). The coordination environment at the tin center was investigated spectroscopically. Following synthesis, chemical characterization and computational analysis, we evaluated TBT-F effects in colon cancer cells. The results showed that TBT-F, at nanomolar range concentrations, was capable of reducing the viabi…
Anti-Proliferative Activity of A Hydrophilic Extract of Manna from Fraxinus angustifolia Vahl through Mitochondrial Pathway-Mediated Apoptosis and Ce…
2020
Manna is produced from the spontaneous solidification of the sap of some Fraxinus species, and, owing its content in mannitol, is used in medicine as a mild laxative. Manna is also a rich source of characteristic bio-phenols with reducing, antioxidant and anti-inflammatory properties. This study assesses the activity of a hydrophilic extract of manna (HME) on cellular and molecular events in human colon-rectal cancer cells. HME showed a time- and concentration-dependent anti-proliferative activity, measured by MTT assay, in all the cell lines examined, namely Caco-2, HCT-116 and HT-29. The amounts of HME that caused 50% of cell death after a 24 h treatment were 8.51 ±
Resveratrol metabolites inhibit human metastatic colon cancer cells progression and synergize with chemotherapeutic drugs to induce cell death.
2012
Scope Resveratrol (RSV) has been proposed to prevent tumor growth; nevertheless, these preventive effects are controversial since RSV pharmacokinetics studies show a low bioavailability. Recent clinical trials show that patients with colorectal cancer and receiving oral RSV have high levels of RSV conjugates in the colorectum, mainly RSV-3-O-sulfate (R3S), RSV-3-O-glucuronide, and RSV-4′-O-glucuronide. However, their potential biological activity has not yet been established. This study thus investigated in human colorectal cancer cell lines whether RSV main metabolites retain anticarcinogenic properties as their parental molecule. Methods and results Proliferation, apoptosis assays and cel…