[PDF] Top 20 An. Acad. Bras. Ciênc. - vol.86 número1

... The chemical and spectrometric procedures of the U-Pb geochronology method on monazites, recently installed in the LAGIR laboratory, are described in detail. In addition, preliminary results on monazite samples from the ... See full document

... production as biomarkers were negatively affected by high indigo dye effluent concentration, their levels were higher at low effluent concentrations (p <0.05). Changes in coenobia size significantly correlated with ... See full document

... The characteristic paradigm of the Natural Sciences is one in which basic research predo minates, i.e., research oriented primarily toward advancing scientific knowledge without an immediate pers- pective for the ... See full document

... The experiment was carried out at the Department of Animal Science at the Universidade Federal de Viçosa, located in the municipality of Viçosa-MG, Brazil. Viçosa is situated at 20° and 45’ latitude south, 42° and 51’ ... See full document

... is an important factor to consider for the successful use of these species in the field, since unfertilized eggs produce male individuals (Pratissoli et ... See full document

... The majority of the antibiotics are prescribed for ENT infections with a presumed viral etiology. Acute tonsillitis, where viruses like adenovirus, Epstein-Barr virus or influenza viruses are implicated, is treated ... See full document

... Buds in pre-anthesis were arranged facing the inflorescence base while flowers were well open towards their apex. Anthesis was asynchronous in distinct points on the inflorescence circumference and started at 05:00h when ... See full document

... consumed, suggesting that prey size can be adjusted and constrained by mouth size of frogs (although this trend did not appear for the RJP). It is expected that animals that cannot handle their prey and need to swallow ... See full document

... Anthesis lasts approximately four days, starting usually at 5 p.m., but some flowers open at other times of the day. Anther dehiscence occurs already in the pre-anthesis bud; some pollen grains are attached to the ... See full document

... two extracts used in this study presented important in vitro SOD-like and CAT-like activities compared with the standard gallic acid. This study verifi ed the antioxidant properties of hydroalcoholic and water- based ... See full document

... The mucilage-secreting trichomes in the leaf sheath were reported for different genera of Rapateaceae (Carlquist 1969, Ferrari et al. 2014) and may represent an apomorphy of the family. The function of the ... See full document

... was determined using the volumetric tube of the equipment. The determination of the chemical constituents of the oil was performed by gas chromatography–mass spectrometry (GC/MS), using a Shimadzu QP5050A (Shimadzu Co., ... See full document

... defense processes (Andrade et al. 2004); however, the behavior here reported shows that along the infection in higher concentration there is an increase in this type of cell. Such situation suggests direct or ... See full document

... Production of fibrous activated carbons from natural cellulose (jute, coconut) fibers for water treatment applications. Mechanical property evaluation of sisal–jute–glass fi[r] ... See full document

... in an extractive form and information about production technologies are essential for its seedling propagation and rational use, however, the seedling production is hampered due to the small number of seeds per ... See full document

... The karyotype of Salix alba is composed of six pairs of relatively large chromosomes, making it a convenient instrument for karyotypic studies (Carvalho 2005). The Tradescantia Micronuclei Test (Trad-MCN) is a common ... See full document

... 1987). An additional characteristic with considerable taxonomic potential is the position of the silica bodies, which are also only slightly influenced by environmental factors (Prychid et ...be an ... See full document

... be an important step in controlling the blood glucose levels in diabetic patients, in addition to being important to clarify some pathways that justify the development of drugs capable of mimicking the contraction ... See full document

... as an inch-thick transverse section, does not show this feature, and thus cannot be confidently referred to this ...representing an animal with a wingspan up to 7 ... See full document

... After these were completed, 5 mL of blood was collected from the patient, early in the morning, after an overnight fast of at least 8 hours, and stored in a polypropylene tube protected from light. Then 3 mL of ... See full document