Los documentales de contenido religioso en la RAI. Análisis desde la iconología audiovisual

Los temas religiosos no suelen constituir una categoría aparte dentro de las clasificaciones del género documental. Además, en la televisión actual, resulta difícil establecer las barreras entre los géneros y los temas. Sin embargo, en los últimos años la televisión pública italiana ha transmitido importantes series de documentales, de contenido netamente religioso, que requieren una metodología de análisis peculiar. En este artículo se propone un análisis cualitativo, basado en la iconología audiovisual. Así se pueden estudiar las configuraciones que adquieren los valores religiosos tradicionales (las virtudes), así como obtener diversos niveles interpretativos de la obra analizada, incluida una síntesis simbólico-temática

Análisis de documentos de archivo desde una perspectiva sociolingüística

O autor discute o problema da análise de documentos de arquivo a partir de uma perspectiva sociolingüística, dando ênfase, sobretudo, à questão posta ao estruturalismo funcionalista e empirista em torno da noção de estrutura como instrumento de representação

Non-intrusive assessment of photosystem II and photosystem I in whole coral tissues

© 2017 Szabó, Larkum, Suggett, Vass, Sass, Osmond, Zavafer, Ralph and Chow. Reef building corals (phylum Cnidaria) harbor endosymbiotic dinoflagellate algae (genus Symbiodinium) that generate photosynthetic products to fuel their host's metabolism. Non-invasive techniques such as chlorophyll (Chl) fluorescence analyses of Photosystem II (PSII) have been widely used to estimate the photosynthetic performance of Symbiodinium in hospite. However, since the spatial origin of PSII chlorophyll fluorescence in coral tissues is uncertain, such signals give limited information on depth-integrated photosynthetic performance of the whole tissue. In contrast, detection of absorbance changes in the near infrared (NIR) region integrates signals from deeper tissue layers due to weak absorption and multiple scattering of NIR light. While extensively utilized in higher plants, NIR bio-optical techniques are seldom applied to corals. We have developed a non-intrusive measurement method to examine photochemistry of intact corals, based on redox kinetics of the primary electron donor in Photosystem I (P700) and chlorophyll fluorescence kinetics (Fast-Repetition Rate fluorometry, FRRf). Since the redox state of P700 depends on the operation of both PSI and PSII, important information can be obtained on the PSII-PSI intersystem electron transfer kinetics. Under moderate, sub-lethal heat stress treatments (33◦ C for~20 min), the coral Pavona decussata exhibited down-regulation of PSII electron transfer kinetics, indicated by slower rates of electron transport from QA to plastoquinone (PQ) pool, and smaller relative size of oxidized PQ with concomitant decrease of a specifically-defined P700 kinetics area, which represents the active pool of PSII. The maximum quantum efficiency of PSII (Fv /Fm ) and functional absorption cross-section of PSII (σPSII ) remained unchanged. Based on the coordinated response of P700 parameters and PSII-PSI electron transport properties, we propose that simple P700 kinetics parameters as employed here serve as indicators of the integrity of PSII-PSI electron transfer dynamics in corals

ALGUMAS ANOTAÇÕES SOBRE CIÊNCIA, SUJEITO E OBJETO NAS CIÊNCIAS DA LINGUAGEM

Resumo: El objeto de conocimiento de la Lingüística es, en sí mismo, una “escena de conocimiento”, porque la Lingüística debe explicar como el niño adquiere (aprende, desarrolla) la lengua.El objeto de conocimiento de la Lingüística tiene dos fases, dos partes básicas: la competencia lingüística universal y las lenguas particulares. Esas dos partes básicas constituyen una escena de conocimiento, una relación sujeto-objeto, porque son los dos elementos esenciales del proceso de aquisición del lenguaje: la capacidad lingüística universal que existe en cada niño y la lengua particular (lengua materna) que ella deberá aprender

Rinitis crónica en tortugas terrestres mediterráneas

Se describen la sintomatología, alteraciones hematológicas y bioquímicas más importantes, junto con las lesiones histológicas que aparecen en la rinitis crónica de las tortugas terrestres mediterráneas

Chronic rhinitis associated with herpesviral infection in captive spur-thighed tortoises from Spain

An epidemic of chronic rhinitis in a population of 50 captive spur-thighed tortoises (Testudo graeca graeca) from Palafrugell (Girona, Spain) is described, in which eight animals died and 12 were euthanatized to perform necropsies and post-mortem studies. The main clinical sign was a bilateral, seromucous rhinitis often accompanied by stomatitis and glossitis. Hematology and serum biochemistry were performed in 33 of the 50 ill animals and in 29 healthy tortoises from three disease-free populations. Lymphocyte count, aspartate aminotransferase (AST) activity, and a-globulin levels were significantly higher in the animals from the sick poptulation. The heterophil count was significantly lower in the sick animals. Some of the diseased tortoises also showed a normocytic-normochromic anemia. Lesions were restricted to the respiratory system and oral cavity. Marked epithelial hyperplasia and presence of a severe mixed inflammatory infiltrate in the epithelium of the oral, nasal, and tracheal miucosae were observed. Electron mi- croscopy demonstrated the presence of mntracytoplasmic and intranuclear viral particles of the size, shape, and distribution pattern typical of a herpesvirus. Key words: Chronic rhinitis, epidemic, herpesviral infection, spur-thighed tortoise, Testudo graeca graeca

Serum acute phase proteins in Dirofilaria immitis and Wolbachia seropositive cats

Objectives The aim of this study was to characterise the response of acute phase proteins (APPs) in cats seropositive for Dirofilaria immitis and to its endosymbiont bacterium Wolbachia.Methods The APPs serum amyloid A (SAA), haptoglobin (Hp) and ceruloplasmin (Cp) were measured in 25 seropositive cats and in 16 healthy seronegative cats.Results SAA and Cp concentrations were significantly higher in animals with D immitis seropositivity that exhibited clinical signs related to the disease, and Hp was elevated in all D immitis-seropositive animals. There was no significant correlation between APPs and D immitis or Wolbachia species antibody titres.Conclusions and relevance An association between feline seropositivity to D immitis and APP response was demonstrated. Increases in serum SAA and Cp concentrations were related to D immitis-associated clinical signs, whereas Hp increased in all seropositive animals