116 research outputs found
Entre o desejo da vida e a razão da Ciência
Consideramos neste artigo a reflexão sobre a "organização" do mundo proposta pela filosofia, pela ciência e pela arte, destacando a passagem da fluidez do simbólico para um plano cognitivo delimitado como conhecimento e minimiza a interferência do senso comum na medida em que relativiza as leituras que os símbolos oferecem, incluindo aí a construção das ficções a partir dos sentimentos baseados no plano do simbólico para se conceber as idéias do vêm a ser o "poder" e os "limites" da ciência sobre a natureza. Também quando sugerimos a aproximação entre as leituras míticas e as interpretações dadas pela arte, estamos nos baseando no fato de que ambas, mitos e arte, nascem e são transmitidos em contextos culturais e sociais específicos e possuem uma dimensão formal. Essas linguagens traduzem um universo simbólico de valores e sintetizam um pensamento, uma mentalidade cristalizada, como por exemplo, as noções transmitidas pela oposição simbólica entre o lado esquerdo e o direito em nossa cultura
Pharmaceutical topical gel: development and validation of a UV spectrophotometric method for determination of polyphenols
The objective was to develop and validate a method for the determination of total polyphenols in a vaginal gel containing a dried extract of Aroeira (Schinus terebinthifolius Raddi). The method was developed by UV spectrophotometry, and proved to be precise, accurate, reproducible, and easy to perform.Colegio de Farmacéuticos de la Provincia de Buenos Aire
Lethal effect of a bait for Rhodnius prolixus (Hemiptera: Reduviidae), the vector of Chagas' disease, containing hexachlorocyclohexane (HCH), under laboratory conditions
An entomoepidemiological investigation of Chagas disease in the state of Ceará, Northeast Region of Brazil
Influence of blood meal and mating in reproduction patterns of Triatoma brasiliensis females (Hemiptera: Reduviidae) under laboratory conditions
Developmental and reproductive patterns of Triatoma brasiliensis infected with Trypanosoma cruzi under laboratory conditions
Cuttings of Lippia alba with emphasis on time for seedling formation, substrates and plant growth regulators
Cultivation-Independent Methods Reveal Differences among Bacterial Gut Microbiota in Triatomine Vectors of Chagas Disease
Chagas disease is one of the most important endemic diseases of South and Central America. Its causative agent is the protozoan Trypanosoma cruzi, which is transmitted to humans by blood-feeding insects known as triatomine bugs. These vectors mainly belong to Rhodnius, Triatoma and Panstrongylus genera of Reduviidae. The bacterial communities in the guts of these vectors may have important effects on the biology of T. cruzi. For this reason, we analyzed the bacterial diversity hosted in the gut of different species of triatomines using cultivation-independent methods. Among Rhodnius sp., we observed similar bacterial communities from specimens obtained from insectaries or sylvatic conditions. Endosymbionts of the Arsenophonus genus were preferentially associated with insects of the Panstrongylus and Triatoma genera, whereas the bacterial genus Serratia and Candidatus Rohrkolberia were typical of Rhodnius and Dipetalogaster, respectively. The diversity of the microbiota tended to be the largest in the Triatoma genus, with species of both Arsenophonus and Serratia being detected in T. infestans
- …