Search results for "Parade"

Experimental Introgression To Evaluate the Impact of Sex Specific Traits on Drosophila melanogaster Incipient Speciation

2019

AbstractSex specific traits are involved in speciation but it is difficult to determine whether their variation initiates or reinforces sexual isolation. In some insects, speciation depends of the rapid change of expression in desaturase genes coding for sex pheromones. Two closely related desaturase genes are involved in Drosophila melanogaster pheromonal communication: desat1 affects both the production and the reception of sex pheromones while desat2 is involved in their production in flies of Zimbabwe populations. There is a strong asymmetric sexual isolation between Zimbabwe populations and all other “Cosmopolitan” populations: Zimbabwe females rarely copulate with Cosmopolitan males w…

Pre-imaginal conditioning alters adult sex pheromone response in Drosophila

2018

https://peerj.com/articles/5585/#supplemental-information; International audience; Pheromones are chemical signals that induce innate responses in individuals of the same species that may vary with physiological and developmental state. In Drosophila melanogaster, the most intensively studied pheromone is 11-cis-vaccenyl acetate (cVA), which is synthezised in the male ejaculatory bulb and is transferred to the female during copulation. Among other effects, cVA inhibits male courtship of mated females. We found that male courtship inhibition depends on the amount of cVA and this effect is reduced in male flies derived from eggs covered with low to zero levels of cVA. This effect is not obser…

Retrospective analysis of jaw biopsies in young adults. A study of 1599 cases in Southern Brazil

2017

Background To evaluate the prevalence and the characteristics of jaw lesions diagnosed in young adults aged 20 to 30 years in a southern Brazil reference center, over a period of 25 years. And to analyze the concordance between clinical and histological diagnosis. Material and Methods In this cross-sectional retrospective study, the biopsies files from this center were retrieved and data regarding sex, age, bone localization, clinical and histological diagnosis were collected. The histological diagnosis were grouped into the categories Cystic lesions of odontogenic origin, Periapical inflammation, Odontogenic tumors, Bone diseases, Health tissue and Nonspecific diagnostic. Absolute and rela…

2016

Abstract. Through measurements of NO2, O3 and NO3 during the PARADE campaign (PArticles and RAdicals, Diel observations of mEchanisms of oxidation) in the German Taunus mountains we derive nighttime steady-state lifetimes (τss) of NO3 and N2O5. During some nights, high NO3 (∼ 200 pptv) and N2O5 (∼ 1 ppbv) mixing ratios were associated with values of τss that exceeded 1 h for NO3 and 3 h for N2O5 near the ground. Such long boundary-layer lifetimes for NO3 and N2O5 are usually only encountered in very clean/unreactive air masses, whereas the PARADE measurement site is impacted by both biogenic emissions from the surrounding forest and anthropogenic emissions from the nearby urbanised/industri…

Girdles as the main infection site for Paradeontacylix kampachi (Sanguinicolidae) in the greater amberjack Seriola dumerili.

2003

In this study, we provide new information about the habitats selected by the blood fluke Paradeontacylix kampachi in the greater amberjack Seriola dumerili based on an exhaustive anatomical examination. From May to October 1998, 21 fish of the 0+ age class were collected from tanks of the Spanish Institute of Oceanography in Puerto de Mazarrón, Spain, for parasitological analysis. Individuals of P. kampachi were found in 17 of the 21 fish analysed (mean intensity +/- SD: 13.6 +/- 16.6; median: 6). Worms occurred in the girdles, cephalic kidney, sinus venosus, kidney and branchial arteries. A Friedman test with a post-hoc contrast revealed a significantly higher number of worms in the girdle…

Implication of an odorant-binding protein in precopulatory behaviour and interaction with the bacterial microbiota

2023

Chemoreception allows animals to detect nutritive food and avoid toxic compounds. Volatile and non-volatile chemical compounds, which are detected by olfactory and gustatory sensory organs, can trigger feeding and reproductive behaviours in animals such as Drosophila melanogaster. Inside chemosensory organs, perireceptor proteins like odorant-binding proteins (OBPs) serve to transport odorant and tastant molecule to dedicated receptors. OBPs are not only involved in chemoreception but also in several other functions. A recent study revealed an interaction between insect microbiota and OBP expression while another one showed that microbes can promote nutrient harvesting on food. In our proje…

Le théâtre des vanités mondaines : le Bois de Boulogne dans les chroniques zoliennes

2018

francaisL’œuvre journalistique d’Emile Zola touche tous les aspects de la realite parisienne de son epoque : des sujets « serieux », sociaux et politiques, a ceux qu’on peut qualifier de legers, voire frivoles. L’existence de la gentry de la capitale sous le regne de Napoleon III compte, selon l’ecrivain, selon ces derniers, etant focalisee sur les apparences et sur un affichage ostentatoire de la richesse. En effet, la vanite s’avere etre le defaut principal de la belle societe parisienne du Second Empire, et le paraitre devient sa nouvelle religion. La scene preferee de la parade quotidienne des mondains est le Bois de Boulogne, recemment transforme en un parc a l’anglaise. L’article se p…

Elementi di un modellino architettonico in pietra dal Santuario di Contrada Mango a Segesta

2022

Nel 1957, in occasione di una campagna di scavo in Contrada Mango di Segesta, Vincenzo Tusa rinvenne due frammenti litici di membrature architettoniche miniaturistiche, appartenenti ad un fregio dorico e ad una cornice, parimenti dorica. In questa sede, oltre a proporre un’analisi dettagliata dei due frammenti, si cercherà di avanzare alcune ipotesi sul contesto della loro realizzazione, sulla loro funzione e sull’eventuale monumento di riferimento, con una rapida disamina della problematica legata ai paradeigmata architettonici nell’antichità. In 1957, during an excavation campaign in Contrada Mango of Segesta, Vincenzo Tusa found two lithic fragments of miniaturistic architectural element…

Parole, parole, parole. Un’analisi testuale delle canzoni più vendute in Italia (1960-2019)

2023

Questo articolo esplora il contenuto delle cento canzoni italiane più vendute, nel periodo che va dal 1960 al 2019, utilizzando un approccio computazionale inedito che combina analisi testuale e analisi musicale automatica. I brani italiani da classifica hanno intercettato alcuni dei principali trend storici, culturali e sociali degli ultimi sessant’anni. Dalla ricerca emergono sei temi ricorrenti (perdono, fuga, amore passione, fatica, fantasia e vitalità) e due dimensioni di senso latenti (patire vs. agire e divertirsi vs. riflettere), che caratterizzano i testi analizzati. Dal punto di vista metodologico, emerge l’importanza discriminate del sound per comprendere sia il clima emotivo dei…

Studies on metazoan parasites of two marine fish species of interest for aquaculture: Seriola dumerili and Sparus aurata

2013

0.1. Introducción general La acuicultura ha experimentado un importante aumento durante los últimos 50 años, resultado del incremento global de población y la creciente demanda de proteínas de alta calidad. En los últimos 40 años, la proporción de reservas pesqueras moderadamente explotadas ha descendido progresivamente hasta estabilizarse en el 15% y en la actualidad, la mayoría de los stocks pesqueros están sobreexplotados y (FAO, 2010). Más de la mitad de los productos acuáticos provienen de granjas, siendo los peces de agua dulce los animales más cultivados seguidos por los moluscos, los crustáceos, los peces diádromos y los peces marinos (FAO, 2010). España es el país con mayor producc…