Detailed morphological description of Habronema clarki Foster &Chitwood, 1937, a nematode parasite of capybaras Hydrochoerus hydrochaeris (Linnaeus, 1766) in Brazil

The genus Habronema has four valid species, of which only two are properly known. The present study aimed to describe in detail the morphology of Habronema clarki through optical and scanning electron microscopy analyses. Our results showed that the labial morphology of this parasite is closer to H. muscae than to H. microstoma. Even so, the characteristic pseudolabia and the slightly convex border of the dorsal and ventral lips are sufficient to distinguish these nematodes. Additional morphological data are presented, thus contributing to the knowledge on this little known nematode. In addition, this study provides new locality records for this species.

[In Memoriam:] Vale Colin Dobson, 19 July 1937-22 June 2007

Obituary for Vale Colin Dobson, Australian parasitologists, 1937-2007.

Distribution of Abacion texense (Loomis, 1937), the only milliped species traversing the Rio Grande, Mississippi, and Pecos rivers (Callipodida: Abacionidae)

Localities are documented for the milliped Abacion texense (Loomis, 1837) (Callipodida: Abacionidae) whose distribution forms both the northern and southern ordinal limits in the Western Hemisphere. The westernmost component of Abacion Rafinesque, 1820, A. texense is the only milliped species whose range spans the Mississippi and Pecos rivers and the Rio Grande. Distribution extremes are in Hennepin County (Co.), Minnesota, in the north; Terrell and Potter cos., Texas, in the west; Alcorn Co., Mississippi, in the east; and southwestern Tamaulipas, Mexico, in the south. Occurrences are projected for southeastern South Dakota, northwestern Alabama, and the southwestern periphery of Tennessee. The type series of A. texense consists solely of the male holotype, so a neotype will be needed if this individual is ever lost, because no paratypes were officially designated.

Uma resenha, mesmo que tardia: Roberto Pontual e a sobrevida da questão da identidade nacional na arte brasileira dos anos 1980

Partindo do panorama traçado pelo crítico carioca Roberto Pontual em Explode Geração!, livro publicado em 1985, pretende-se analisar em que medida a questão da identidade brasileira na arte realizada no país encontrou respaldo na cena dos anos 1980, momento em que a produção de uma jovem geração de artistas foi alinhada à tradição do barroco brasileiro, tradição esta que, segundo o crítico, perpassaria e alinhavaria alguns dos trabalhos do período, fornecendo-lhes uma espécie de chancela de uma brasilidade insuspeita, a despeito de todo contato que travavam com a arte internacional. Esta "resenha tardia" propõe-se tão somente indicar caminhos possíveis para futuros estudos mais detalhados acerca de tal questão.

Is cardiac tissue more susceptible than lung to oxidative effects induced by chronic nasotropic instillation of residual oil fly ash (ROFA)?

The current study aimed to determine the role of oxidants in cardiac and pulmonary toxicities induced by chronic exposure to ROFA. Eighty Wistar rats were divided into four groups: G1 (10 mu L Saline), G2 (ROFA 50 mu g/10 mu L), G3 (ROFA 250 mu g/10 mu L) and G4 (ROFA 500 mu g/10 mu L). Rats received ROFA by nasotropic instillation for 90 days. After that, they were euthanized and bronchoalveolar lavage (BAL) was performed for total count of leukocytes, protein and lactate dehydrogenase (LDH) determinations. Lungs and heart were removed to measure lipid peroxidation (MDA), catalase (CAT) and superoxide dismutase (SOD) activity. BAL presented an increase in leukocytes count in G4 in comparison to the Saline group (p = 0.019). In lung, MDA level was not modified by ROFA, while CAT was higher in G4 when compared to all other groups (p = 0.013). In heart, G4 presented an increase in MDA (p = 0.016) and CAT (p = 0.027) levels in comparison to G1. The present study demonstrated cardiopulmonary oxidative changes after a chronic ROFA exposure. More specifically, the heart tissue seems to be more susceptible to oxidative effects of long-term exposure to ROFA than the lung.

Roberto Carlos e a identidade brasileira na canção

Roberto Carlos é, ao mesmo tempo, o mais popular e o mais rejeitado dos artistas brasileiros. Nosso artigo pretende compreender as raízes dessa contradição, compreendendo tanto a positividade e o valor de sua obra - buscando relativizar uma série de estigmas e preconceitos que rondam sua figura, demonstrando, por assim dizer, a legitimidade de sua coroa - quanto o lugar a partir de onde falam seus antagonistas, de modo a perceber o conjunto de interesses e posições envolvidas nesses juízos críticos.

esempio di tavola 1: rilievo a vista di un oggetto e proiezioni ortogonali. designer: Roberto Paoli, Milano

esempio della prima esercitazione in aula

Estética y (micro)política en la narrativa de Roberto Echavarren

Doctorado en Literatura y Teoría de la Literatura

Le parole incrociate. Lucio Dalla e Roberto Roversi: Nascita di un cantautore (1973-1976)

La produzione Dalla-Roversi si iscrive nella cornice storica degli anni’70, quelli che nell'immaginario comune vengono chiamato “anni piombo”. In realtà gli anni ’70, in particolare il Settantasette bolognese, sono molto altro: sono anni di fervore culturale e di sperimentazione del linguaggio, grazie anche alla nascita delle radio libere. La collaborazione tra i due artisti dura tre anni, dal 1973 al 1976, e porterà alla pubblicazione di tre album: Il giorno aveva cinque teste, Anidride solforosa e Automobili. I tre dischi cambieranno la vita di Lucio Dalla, sia dal punto di vista professionale che personale. Nel 1977, infatti, dopo la “rottura” con Roversi, Dalla pubblicherà il suo capolavoro: Come è profondo il mare, primo album scritto e musicato interamente dal cantautore. A questo punto della sua carriera può essere definito tale, in quanto dimostra di essere capace di scrivere testi che possono essere considerati e poetici e di musicarli in maniera consapevole.

In Vitro and In Vivo Validation of Human and Goat Chondrocyte Labeling by Green Fluorescent Protein Lentivirus Transduction

We investigated whether human articular chondrocytes can be labeled efficiently and for long-term with a green fluorescent protein (GFP) lentivirus and whether the viral transduction would influence cell proliferation and tissue-forming capacity. The method was then applied to track goat articular chondrocytes after autologous implantation in cartilage defects. Expression of GFP in transduced chondrocytes was detected cytofluorimetrically and immunohistochemically. Chondrogenic capacity of chondrocytes was assessed by Safranin-O staining, immunostaining for type II collagen, and glycosaminoglycan content. Human articular chondrocytes were efficiently transduced with GFP lentivirus (73.4 +/- 0.5% at passage 1) and maintained the expression of GFP up to 22 weeks of in vitro culture after transduction. Upon implantation in nude mice, 12 weeks after transduction, the percentage of labeled cells (73.6 +/- 3.3%) was similar to the initial one. Importantly, viral transduction of chondrocytes did not affect the cell proliferation rate, chondrogenic differentiation, or tissue-forming capacity, either in vitro or in vivo. Goat articular chondrocytes were also efficiently transduced with GFP lentivirus (78.3 +/- 3.2%) and maintained the expression of GFP in the reparative tissue after orthotopic implantation. This study demonstrates the feasibility of efficient and relatively long-term labeling of human chondrocytes for co-culture on integration studies, and indicates the potential of this stable labeling technique for tracking animal chondrocytes for in cartilage repair studies.