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Search Results: 1 - 10 of 212455 matches for " Léger Nicole "
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Numerical Taxonomy of Old World Phlebotominae (Diptera: Psychodidae): 2. Restatement of Classification upon Subgeneric Morphological Characters
Rispail, Philippe;Léger, Nicole;
Memórias do Instituto Oswaldo Cruz , 1998, DOI: 10.1590/S0074-02761998000600016
Abstract: numerical analyses (correspondence analysis, ascending hierarchical classification, and cladistics) were done with morphological characters of adult phlebotomine sand flies. the resulting classification largely confirms that of classical taxonomy for supra-specific groups from the old world, though the positions of some groups are adjusted. the taxa spelaeophlebotomus theodor 1948, idiophlebotomus quate & fairchild 1961, australophlebotomus theodor 1948 and chinius leng 1987 are notably distinct from other old world groups, particularly from the genus phlebotomus rondani & berté 1840. spelaeomyia theodor 1948 and, in particular, parvidens theodor & mesghali 1964 are clearly separate from sergentomyia fran?a & parrot 1920.
Numerical Taxonomy of Old World Phlebotominae (Diptera: Psychodidae): 1. Considerations of Morphological Characters in the Genus Phlebotomus Rondani & Berté 1840
Rispail, Philippe;Léger, Nicole;
Memórias do Instituto Oswaldo Cruz , 1998, DOI: 10.1590/S0074-02761998000600015
Abstract: numerical analyses (correspondence analysis, ascending hierarchical classification, cladistic approach) were applied to the morphological characters of the adults of the genus phlebotomus rondani & berté 1840. they confirm the reliability of the classic classifications, and also redefine the taxonomic and phylogenetic position of certain taxa. thus, spelaeophlebotomus theodor 1948, idiophlebotomus quate & fairchild 1961 and australophlebotomus theodor 1948 deserve generic rank. among the vectors of leishmaniasis, the subgenus phlebotomus rondani & berté 1840 is probably ancient. the results attribute an intermediate taxonomic and phylogenetic position to the taxa euphlebotomus theodor 1948 and anaphlebotomus theodor 1948, and reveal the probable artificial nature of the latter. the comparatively large numbers of species of subgenera paraphlebotomus theodor 1948, synphlebotomus theodor 1948 and, above all, larroussius nitzulescu 1931 and adlerius nitzulescu 1931, suggest that they are relatively recent. the development of adult morphological characters, the validity of their use in taxonomy and proposals for further studies are discussed.
Numerical Taxonomy of Old World Phlebotominae (Diptera: Psychodidae): 2. Restatement of Classification upon Subgeneric Morphological Characters
Rispail Philippe,Léger Nicole
Memórias do Instituto Oswaldo Cruz , 1998,
Abstract: Numerical analyses (correspondence analysis, ascending hierarchical classification, and cladistics) were done with morphological characters of adult phlebotomine sand flies. The resulting classification largely confirms that of classical taxonomy for supra-specific groups from the Old World, though the positions of some groups are adjusted. The taxa Spelaeophlebotomus Theodor 1948, Idiophlebotomus Quate & Fairchild 1961, Australophlebotomus Theodor 1948 and Chinius Leng 1987 are notably distinct from other Old World groups, particularly from the genus Phlebotomus Rondani & Berté 1840. Spelaeomyia Theodor 1948 and, in particular, Parvidens Theodor & Mesghali 1964 are clearly separate from Sergentomyia Fran a & Parrot 1920.
Numerical Taxonomy of Old World Phlebotominae (Diptera: Psychodidae): 1. Considerations of Morphological Characters in the Genus Phlebotomus Rondani & Berté 1840
Rispail Philippe,Léger Nicole
Memórias do Instituto Oswaldo Cruz , 1998,
Abstract: Numerical analyses (correspondence analysis, ascending hierarchical classification, cladistic approach) were applied to the morphological characters of the adults of the genus Phlebotomus Rondani & Berté 1840. They confirm the reliability of the classic classifications, and also redefine the taxonomic and phylogenetic position of certain taxa. Thus, Spelaeophlebotomus Theodor 1948, Idiophlebotomus Quate & Fairchild 1961 and Australophlebotomus Theodor 1948 deserve generic rank. Among the vectors of leishmaniasis, the subgenus Phlebotomus Rondani & Berté 1840 is probably ancient. The results attribute an intermediate taxonomic and phylogenetic position to the taxa Euphlebotomus Theodor 1948 and Anaphlebotomus Theodor 1948, and reveal the probable artificial nature of the latter. The comparatively large numbers of species of subgenera Paraphlebotomus Theodor 1948, Synphlebotomus Theodor 1948 and, above all, Larroussius Nitzulescu 1931 and Adlerius Nitzulescu 1931, suggest that they are relatively recent. The development of adult morphological characters, the validity of their use in taxonomy and proposals for further studies are discussed.
Phlebotomus (Euphlebotomus) barguesae n. sp. from Thailand (Diptera – Psychodidae)
Jér?me Depaquit, Frédérique Muller, Nicole Léger
Parasites & Vectors , 2009, DOI: 10.1186/1756-3305-2-5
Abstract: A new species of sandfly, P. barguesae n. sp. is described from limestone caves in Thailand. The male-female gathering in the same species is based on ecological, morphological and molecular criteria (homology of mtDNA cytochrome c oxidase I sequences). The inclusion of P. barguesae n. sp. in the subgenus Euphlebotomus is justified on the basis of characters of the male genitalia (five spines on the style, bifurcated paramere, and no basal lobe on the coxite) and of female pharyngeal armature (two kinds of teeth). It well differenciated from another sympatric species: P. mascomai.The new species described in the present study has smooth spermathecae. This original morphology opens a discussion on the heterogeneity of this subgenus.Species of phlebotomine sandflies recorded in Thailand belong to the genera Phlebotomus Rondani & Berté, 1840, Idiophlebotomus Quate & Fairchild, 1961, Chinius Leng, 1987 and Sergentomyia Fran?a & Parrot, 1920 [1-5]. Three of them belong to the subgenus Euphlebotomus Theodor, 1948: Phlebotomus argentipes Annandale & Brunetti, 1908, the main vector of Leishmania donovani (Laveran & Mesnil, 1903) in India, P. philippinensis gouldi Lewis, 1978, found in the rain forest of Thailand, and P. mascomai Muller, Depaquit & Léger, 2007, from limestone caves.Thailand, province of Ratchaburi, district of Muang, sub-district of Huay Phai, inside the cave "Khao Tham Khun Chom" (13°48'85,6"N et 99°70'35,7"E). Altitude: 35 m. above sea level.All the specimens were caught in July 2004 and February 2005 (Barbazan recoltavit) by CDC miniature light traps between 5 p.m. and 9 a.m. They were kept in 96° ethanol, and mounted in toto for morphological study according to Abonnenc's method [6]: 4–8 hours in 10% KOH solution followed by eight baths (20 minutes each) in water, then at least 1 hour in Berlese's medium. Females were directly mounted in this liquid with their spermathecae dissected, then re-mounted in chloral gum when possible. Some males were dehydrate
Paraphyly of the Subgenus Sintonius (Diptera, Psychodidae, Sergentomyia): Status of the Malagasy Species. Creation of a New Subgenus and Description of a New Species
Fano José Randrianambinintsoa, Nicole Léger, Vincent Robert, Jér?me Depaquit
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0098065
Abstract: During an inventory of Phlebotomine sand flies carried out in Madagascar, we have identified some specimens showing morphological characters related to the subgenus Sintonius of the genus Sergentomyia. We started a molecular study based on cytochrome b mtDNA and on D1–D2 and D8 domains of the rDNA. The sampling includes all the Sergentomyia species available and also S. (Sergentomyia) schwetzi, S. (Parrotomyia) magna, and the following species belonging to the subgenus Sintonius: S. clydei, S. christophersi, S. affinis vorax, S. adleri and S. meilloni. The Sintonius subgenus (sensu Theodor) is paraphyletic. The Malagasy specimens morphologically Sintonius-like are never clustered with the continental Sintonius. We propose a new subgenus to include them: Trouilletomyia subg. nov. Due to the lack of mesanepisternal setae, the species huberti is removed from the genus Phlebotomus and we propose here a new combination: Sergentomyia huberti comb. nov. The male of S. huberti is pinpointed and described for the first time. Lastly, a new species for Science is described on one female: Sergentomyia (Trouilletomyia) boironis n. sp.
A study of endothelial function and circulating asymmetric dimethylarginine levels in people with Type 1 diabetes without macrovascular disease or microalbuminuria
Latika Sibal, Sharad C Agarwal, Edzard Schwedhelm, Nicole Lüneburg, Rainer H B?ger, Philip D Home
Cardiovascular Diabetology , 2009, DOI: 10.1186/1475-2840-8-27
Abstract: Sixty-one young people with Type 1 diabetes without macrovascular disease or nephropathy and 62 healthy volunteers underwent brachial artery flow-mediated dilatation (FMD) and assay of plasma ADMA and adhesion molecules.Age, gender, BMI, lipid profile and renal function were similar in the two groups. People with Type 1 diabetes had impaired FMD compared to healthy controls (5.0 ± 0.4 vs 8.9 ± 0.4%; p < 0.001). Plasma ADMA levels were significantly lower in the people with diabetes compared to healthy controls (0.52 ± 0.12 vs 0.66 ± 0.20 μmol/l, p < 0.001). Plasma ICAM-1, E-selectin and PAI-1 levels were significantly higher in people with diabetes compared to healthy controls (median 201 (IQR 172–226) vs 180 (156–216) μg/l, p = 0.027; 44.2 (32.6–60.9) vs. 33.1 (22.4–51.0) μg/l; p = 0.003 and 70.8 (33.3–85.5) vs 46.3 (23.9–76.8) μg/l, p = 0.035). Plasma ADMA and VCAM-1 levels were positively correlated (r = 0.37, p = 0.003) in people with diabetes. There was no correlation between the plasma ADMA and FMD.ADMA levels are not associated with endothelial dysfunction in young adults with Type 1 diabetes without microalbuminuria or known macrovascular disease. This suggests that the impaired endothelial function in these individuals is not a result of eNOS inhibition by ADMA.Type 1 diabetes is associated with endothelial dysfunction and increased cardiovascular risk [1]. Endothelial nitric oxide synthase (eNOS) converts L-Arginine to nitric oxide (NO), which is a key mediator of vascular homeostasis due to its central role in the maintenance of the endothelial milieu. ADMA is a competitive inhibitor of eNOS, which thus reduces the production of NO and might possibly cause endothelial dysfunction [2]. The circulating levels of ADMA have been found to be raised in the presence of cardiovascular risk factors including hypertension, renal dysfunction and Type 2 diabetes as well as in individuals with cardiovascular disease [3-6]. Studies which assessed ADMA levels in people
Investigation of the Hyperfine Structure of Atomic Niobium (Nb I) Spectral Lines Based on the Lower Energy Levels at 22936, 23010, and 23048 cm-1  [PDF]
L. Windholz, S. Kr?ger
Spectral Analysis Review (SAR) , 2018, DOI: 10.4236/sar.2018.62004
Abstract: The hyperfine (hf) structure constants of three atomic niobium energy levels in the energy range around 23000 cm-1 (at 22936.90, 23010.58, and 23048.58 cm-1) are known with only limited accuracy, and the constants of combining levels are sometimes even unknown. Thus we performed laser spectroscopic investigations in the wavelength range between 5600 and 6500 Å, and we excited altogether 16 transitions in which these lower levels are involved. Beside a more precise determination of the hf structure constants of the three lower levels (which were determined on several lines sharing a common upper level), these experiments led to the knowledge of the hf constants of nine levels with previously unknown constants. Beside these results, also the hf constants of 13 further energy levels are reported. For six of these levels, the constants were previously unknown.
Skrapnel (Willem Anker)
L Krüger
Tydskrif vir letterkunde , 2012,
Abstract: Skrapnel. Willem Anker. Pretoria: Protea Boekhuis, 2011. 74 pp. ISBN: 978-1-86919-109-3.
El proceso de Burgos en la prensa regional francesa
Eva Léger
Historia Actual Online , 2011,
Abstract: La represión franquista provocó una fuerte movilización internacional y el Proceso de Burgos en diciembre de 1970 fue uno de los episodios que más llamó la atención de la opinión pública mundial. Este corto artículo pretende presentar el impacto del proceso de Burgos en la región Lemosín, y en los dos periódicos más vendidos en la zona. Así, a este nivel, evocaré algunas pistas para entender por qué los activistas de ETA se beneficiaron de tanto apoyo. Palabras claves: Proceso Burgos, prensa regional francesa, Lemosín, opinión pública, protesta ___________________________ Abstract: Franquist repression caused a strong international movement of contestation; the lawsuit of Burgos, in December 1970 has appeared among the episodes which marked the most the world public opinion. This short article aims to briefly present the impact of the lawsuit of Burgos in the Limousin area and in two of its most sold regional newspapers. Thus, at this level, we will give some avenues to understand why the activists of ETA profited from such a support. Keywords: Lawsuit of Burgos, french regional press, Lemosín, public opinion, protest
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