Now showing items 1-10 of 40
Aerial stem and leaf morphoanatomy of some species of Smilax
(Revista Brasileira de Farmacognosia, 2013-01-01) [Artigo]
This study aimed to describe the morphoanatomy of the aerial vegetative organs of seven Smilax species, used in Brazilian folk medicine. Samples of leaves and stems were fixed with FAA 50, embedded in historesin, sectioned ...
Occurrence of Strongyluris oscari (Nematoda; Heterakidae) in Enyalius bilineatus (Squamata: Leiosaurinae) from the Brazilian Atlantic Forest
(Herpetology Notes, 2014) [Artigo]
Modelo regulatório da liberação comercial de plantas geneticamente modificadas no Brasil: existe um consenso?
(Sociedade & Natureza, 2014-12-01) [Artigo]
The commercial release of genetically modified crops (GM crops) is an issue of discussion and controversy among different sectors of civil society and experts in the environmental area in relation to its cultivation on a ...
Spermatozoon ultrastructure and sperm cryopreservation of the Brazilian dry season spawner fish pirapitinga, Brycon nattereri
(Aquaculture Research, 2012-03-01) [Artigo]
The aims of this study were to describe the fresh spermatozoon ultrastructure using scanning and transmission electron microscopy and to improve the sperm cryopreservation methodology for the freshwater fish pirapitinga ...
Chironomus sancticaroli (Diptera, Chironomidae) as a Sensitive Tropical Test Species in Laboratory Bioassays Evaluating Metals (Copper and Cadmium) and Field Testing
(Archives of Environmental Contamination and Toxicology, 2019-01-15) [Artigo]
Despite that chironomids are the most widely used benthic insect test species worldwide, little research has been conducted so far with tropical chironomid representatives. This study was designed to evaluate the indigenous ...
Genomics and proteomics approaches to the study of cancer-stroma interactions
(Bmc Medical Genomics, 2010-05-04) [Artigo]
Background: The development and progression of cancer depend on its genetic characteristics as well as on the interactions with its microenvironment. Understanding these interactions may contribute to diagnostic and ...
NITROGEN USED STRATEGIES OF NODULATED AMAZONIAN LEGUME: INGA EDULIS
(Journal Of Tropical Forest Science, 2017-01-01) [Artigo]
Symbiotic nitrogen fixation in legumes is strongly diminished by mineral nitrogen. Nevertheless, recent work with some tropical legumes revealed low sensitivity to mineral nitrogen or even enhancement of nodulation by ...
Reproductive aspects of Chagas disease vectors (Hemiptera, Triatominae) with anatomical teratologies
(Acta Tropica, 2018-09-01) [Artigo]
As Chagas disease has no cure, vector control is the most effective method of preventing this neglected disease. Generally the anatomical teratologies are associated with hormonal dysfunction of the corpus allatum (juvenile ...
Fluid dynamic study of mixtures of sugarcane bagasse and sand particles: Minimum fluidization velocity
(Biomass and Bioenergy, 2017-01-01) [Artigo]
This paper is focused on the study of fluid-dynamic behavior of mixtures of the sugarcane bagasse particles and quartz sand in a transparent fluidized bed column. The minimum fluidization velocity (Vmf) was determined by ...
Effects of cryoprotectants and low temperatures on hatching and abnormal embryo development of Prochilodus lineatus (Characiformes: Prochilodontidae)
(Neotropical Ichthyology, 2017-01-01) [Artigo]
This study evaluated the effect of the cryoprotectants and the low temperatures on the embryonic development of Prochilodus lineatus, describing their main morphological alterations. On chilling sensitivity test, the ...