47 research outputs found
A importância da semiótica na publicidade para a projeção dos significados: uma análise do anúncio Mitsubishi Pajero Full
Este artigo se destina a explicar a importância dos estudos semióticos na publicidade, tendo como referência os teóricos, Algirdas Julien Greimas, Charles Pierce, Roland Barthes e Martine Joly para um melhor entendimento dos conceitos que envolvem, desde as premissas básicas à semiótica da imagem, fundamental no ramo publicitário, tendo como objeto de análise o anúncio da Mitsubishi Pajero Full, com o objetivo de perceber através da semiótica as relações sígnicas e a produção de sentido engendrada na mensagem publicitária
PUBLICIDADE FÍLMICA: UM OLHAR SEMIÓTICO SOBRE AS CARACTERÍSTICAS DO CINEMA NA PROPAGANDA
A possibilidade de captação da imagem em movimento e o surgimento do cinema deram à publicidade uma nova área a ser explorada, desde a inserção de produtos em filmes a criação de propagandas em vídeo, herdando do cinema características e influências na forma de codificar e transmitir mensagens. Este estudo busca evidenciar e entender como ocorre a projeção de significados a partir de imagens em movimento utilizando a abordagem analítica de Christian Metz (1980)para verificar a relação entre a linguagem cinematográfica e a significação no filme, bem como as relações de intertextualidade discutidas por Covalesk(2009) entre a publicidade e o cinema para a construção da narrativa, em torno das esferas de entretenimento e de mercado. Desta forma, o presente trabalho terá como objeto de estudo, o vídeo comercial “You Can Shine”, da marca de shampoos Pantene, lançado em 2008 pela agência Grey Thailand, Para melhor observação do comercial, será utilizado o método de transcrição fílmica proposto por Jullier e Marie(2009)
Biodistribuição de EDTMP-153-samário em ratos tratados com docetaxel
Purpose: Many patients with metastatic bone disease have to use radiopharmaceuticals associated with chemotherapy to relieve bone
pain. The aim of this study was to assess the influence of docetaxel on the biodistribution of samarium-153-EDTMP in bones and other
organs of rats. Methods: Wistar male rats were randomly allocated into 2 groups of 6 rats each. The DS (docetaxel/samarium) group
received docetaxel (15 mg/kg) intraperitoneally in two cycles 11 days apart. The S (samarium/control) group rats were not treated with docetaxel. Nine days after chemotherapy, all the rats were injected with 0.1ml of samarium-153-EDTMP via orbital plexus (25μCi). After 2 hours, the animals were killed and samples of the brain, thyroid, lung, heart, stomach, colon, liver, kidney and both femurs were removed. The percentage radioactivity of each sample (% ATI/g) was determined in an automatic gamma-counter (Wizard-1470,
Perkin-Elmer, Finland). Results: On the 9th day after the administration of the 2nd chemotherapy cycle, the rats had a significant weight loss (314.50±22.09g) compared (p<0.5) to pre-treatment weight (353.66± 22.8). The % ATI/g in the samples of rats treated with
samarium-153-EDTMP had a significant reduction in the right femur, left femur, kidney, liver and lungs of animals treated with docetaxel, compared to the control rats. Conclusion: The combination of docetaxel and samarium-153-EDTMP was associated with a lower
response rate in the biodistribution of the radiopharmaceutical to targeted tissues. Further investigation into the impact of docetaxel on biodistribution of samarium-153-EDTMP would complement the findings of this stud
Biodistribuição do radiofármaco pertecnetato de sódio (Na99mTcO4) em ratos submetidos a ressecção extensa de intestino delgado
To evaluate the biodistribution of sodium pertecnetate (Na99mTcO4) in organs and tissues, the morphometry of
remnant intestinal mucosa and ponderal evolution in rats subjected to massive resection of the small intestine. Methods:
Twenty-one Wistar rats were randomly divided into three groups of 7 animals each. The short bowel (SB) group was
subjected to massive resection of the small intestine; the control group (C) rats were not operated on, and soft intestinal
handling was performed in sham rats. The animals were weighed weekly. On the 30th postoperative day, 0.l mL of
Na99mTcO4, with mean activity of 0.66 MBq was injected intravenously into the orbital plexus. After 30 minutes, the rats
were killed with an overdose of anesthetic, and fragments of the liver, spleen, pancreas, stomach, duodenum, small intestine,
thyroid, lung, heart, kidney, bladder, muscle, femur and brain were harvested. The biopsies were washed with 0.9%
NaCl.,The radioactivity was counted using Gama Counter WizardTM 1470, PerkinElmer. The percentage of radioactivity
per gram of tissue (%ATI-g) was calculated. Biopsies of the remaining jejunum were analysed by HE staining to obtain
mucosal thickness. Analysis of variance (ANOVA) and the Tukey test for multiple comparisons were used, considering
p<0.05 as signifi cant. Results: There were no signifi cant differences in %ATI-g of the Na99mTcO4 in the organs of the
groups studied (p>0.05). An increase in the weight of the SB rats was observed after the second postoperative week. The
jejunal mucosal thickness of the SB rats was signifi cantly greater than that of C and sham rats (p<0.05). Conclusion: In
rats with experimentally-produced short bowel syndrome, an adaptive response by the intestinal mucosa reduced weight
loss. The biodistribution of Na99mTcO4 was not affected by massive intestinal resection, suggesting that short bowel
syndrome is not the cause of misleading interpretation, if an examination using this radiopharmaceutical is indicatedCNP
Heart and systemic effects of statin pretreatment in a rat model of abdominal sepsis. Assessment by Tc99m-sestamibi biodistribition
PURPOSE:
To evaluate the heart and the Tc-99m-sestamibi biodistribution after statin pretreatment in a rat model of abdominal sepsis.
METHODS:
Twenty-four Wistar rats were randomly distributed into four groups (n=6 per group): 1) sepsis with simvastatin treatment, 2) sepsis with vehicle, 3) sham control with simvastatin and 4) sham control with vehicle. 24 hours after cecal ligation and puncture rats received 1.0MBq of Tc-99m-sestamibi i.v. 30min after, animals were euthanized for ex-vivo tissue counting and myocardium histological analysis.
RESULTS:
Myocardial histologic alterations were not detected 24 hours post-sepsis. There was significantly increased cardiac Tc-99m-sestamibi activity in the sepsis group with simvastatin treatment (1.90.3%ID/g, p<0.001) in comparison to the sepsis group+vehicle (1.00.2% ID/g), control sham group+ simvastatin (1.20.3% ID/g) and control sham group (1.30.2% ID/g). Significant Tc-99m-sestamibi activity in liver, kidney and lungs was also detected in the sepsis group treated with simvastatinin comparison to the other groups.
CONCLUSIONS:
Statin treatment altered the biodistribution of Tc-99m-sestamibi with increased cardiac and solid organ activity in rats with abdominal sepsis, while no impact on controls. Increased myocardial tracer activity may be a result of a possible protection effect due to increased tissue perfusion mediated by statins