Analysis of toxin profiles in three different fish species causing ciguatera fish poisoning in Guadeloupe, French West Indies

A grey snapper (Lutjanus griseus), a grouper (Serranidae) and a blackjack (Caranx lugubris) were implicated in three different ciguatera poisonings in Guadeloupe, French West Indies. A mouse bioassay indicated toxicity for each specimens: 0.5-1, greater than or equal to 1 and > 1 M Ug g(-1), respectively. After purification by gel filtration chromatography, the samples were analysed by high-performance liquid chromatography coupled to mass spectrometry (LC-MS). The toxin profiles differ from one fish to another. C-CTX-1 was detected at 0.24, 0.90 and 13.8 ng g(-1) flesh in the snapper, grouper and jack, respectively. It contributed only to part of the whole toxicity determined by the mouse bioassay. Other toxins identified were C-CTX-2 (a C-CTX-1 epimer), three additional isomers of C-CTX-1 or -2, and five ciguatoxin congeners (C-CTX-1127, C-CTX-1143 and its isomer C-CTX-1143a, and C-CTX-1157 and its isomer C-CTX-1157b). Putative hydroxy-polyether-like compounds were also detected in the flesh of the grouper with [M+ + H](+) ions at m/z 851.51, 857.50, 875.51, 875.49 and 895.54 Da. Some of these compounds have the same mass range as some known dinoflagellate toxins. In conclusion, this study confirms the usefulness of LC-MS analysis to determine the ciguatoxins levels and the toxin profile in fish flesh hazardous to humans.

Orientalism and Imperialism in French West Africa. Considerations on travel literature, colonial tourism, and the desert as a “commodity” in Mauritania

In this article we intend to make a summary overview of the influence that literary production, originated under colonial mapping missions or later in travel writing, had in the construction and establishment of a discourse to advertise and promote tourism in Mauritania. To this end we will draw on travel narratives that are illustrative of different periods and that correspond in some way to discourses of otherness. In this specific case, such discourses relate to the “Moors” of the West African coast and were produced in various historical contexts. We will also consider the discourse present in the tourism promotion materials of the colonial period and we will demonstrate to what extent it can be engaged in a dialogue with 19th and 20th centuries’ Western colonial literature.

Humor impresso: cultura e política em O Espreitador do Mundo Novo

The aim of this paper is to identify, analyse and question the expressions of humour in O Espreitador do Mundo Novo, a monthly periodical published by José Daniel Rodrigues da Costa throughout 1802. It is a chapter of a PhD thesis in History and Theory of Ideas with the title “Correcting by laughter. Humour in Portuguese periodical press 1797-1834”. Positing humour as a social and cultural phenomenon, it is regarded here in a broad sense, comprehending wit, joke, ridicule, satire, jest, mockery, facetiousness or irony, displayed with recourse to various figures of speech. This interdisciplinary work intends listing and researching the themes and issues of the periodical and its targets, namely the social, age or gender stereotypes and to acknowledge its political stances. Another main purpose of this paper is to assess the role of humour as expressed in the printed periodical as a political and social weapon, criticizing ways (and which ways) and/or fashions, often ridiculing novelty just for being new in order to maintain the statu quo, and to establish in which senses humour was used in the context of late Ancien Régime and early liberalism culture. The humour of O Espreitador has also played a part in framing a public sphere in early nineteenth-century Portugal, as can be seen by the different “stages” and backgrounds where the monthly installments of the periodical take place: squares, coffee houses, fairgrounds, private houses, jailhouses, churches, public promenades, pilgrimages, bullfights, parties, the opera house – each of them a space of sociability and socialization. In this one, as in other periodicals of the time, printed humour stands at the crossroads of politics and culture, in spaces boldly widening before the reader. Albeit, there are quite a few loud silences in O Espreitador: not even the slightest remark to the church, the clergy or the Inquisition, only reverential references to the established order and the powers that be. The periodical criticizes the criticizers; it is against those who are against. The repeated disclaimers are intended not only to protect the author from libel suits or other litigation. They belong to a centuries-old tradition which, as early as the Middle Ages, has set apart escárnio (scorn) from maldizer (slander): José Daniel Rodrigues da Costa distinguishes satire from rebuking vice – a “cheerful criticism” forerunner of the ironic humour which was to become a trademark of Portuguese literature in the second half of the nineteenth century. Targeting those who deviate from the social norm (for example social climbers and older women who marry young men) or the followers of fashion (sometimes specifically “French fashion”), O Espreitador charges at liberal and progressive ideas. It ridicules the ways of the “New World” in order to perpetuate an idealized version of the “Old World”. Notwithstanding two exceptions – it condemns racism and bullfighting –, the humour of O Espreitador is conservative and conformist from a social and political standpoint.

Discussing Chevalier’s data on the efficiency of tariffs for american and french canals in the 1830s

This article revisits Michel Chevalier’s work and discussions of tariffs. Chevalier shifted from Saint-Simonism to economic liberalism during his life in the 19th century. His influence was soon perceived in the political world and economic debates, mainly because of his discussion of tariffs as instruments of efficient transport policies. This work discusses Chevalier’s thoughts on tariffs by revisiting his masterpiece, Le Cours d’Économie Politique. Data Envelopment Analysis (DEA) was conducted to test Chevalier’s hypothesis on the inefficiency of French tariffs. This work showed that Chevalier’s claims on French tariffs are not validated by DEA.

On the length of bank-firm relationships: an empirical application to a major French bank

NIPE - WP 01/ 2016

Investor sentiment and the cross-section of stock returns in the French stock market

Dissertação de mestrado em Finanças

The animal kingdom arranged in conformity with its organization / by the Baron Cuvier ; the Crustacea, Arachnides and Insecta, by P.A. Latreille ; translated from the French, with notes and additions, by H. M'Murtrie ; in four volumes, with plates.

v 3 (1831)

The animal kingdom arranged in conformity with its organization / by the Baron Cuvier ; the Crustacea, Arachnides and Insecta, by P.A. Latreille ; translated from the French, with notes and additions, by H. M'Murtrie ; in four volumes, with plates.

v 2 (1831)

The animal kingdom arranged in conformity with its organization / by the Baron Cuvier ; the Crustacea, Arachnides and Insecta, by P.A. Latreille ; translated from the French, with notes and additions, by H. M'Murtrie ; in four volumes, with plates.

v 1 (1831)

A new barbet from French Indo-China.

v.34:no.21(1953)