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Anais da Academia Brasileira de Ciências

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https://www.readbyqxmd.com/read/28198921/premaxillary-crest-variation-within-the-wukongopteridae-reptilia-pterosauria-and-comments-on-cranial-structures-in-pterosaurs
#1
Xin Cheng, Shunxing Jiang, Xiaolin Wang, Alexander W A Kellner
Cranial crests show considerable variation within the Pterosauria, a group of flying reptiles that developed powered flight. This includes the Wukongopteridae, a clade of non-pterodactyloids, where the presence or absence of such head structures, allied with variation in the pelvic canal, have been regarded as evidence for sexual dimorphism. Here we discuss the cranial crest variation within wukongopterids and briefly report on a new specimen (IVPP V 17957). We also show that there is no significant variation in the anatomy of the pelvis of crested and crestless specimens...
February 9, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28198920/exogenous-enzyme-complex-prevents-intestinal-soybean-meal-induced-enteritis-in-mugil-liza-valenciennes-1836-juvenile
#2
Leonardo R V Ramos, Virgínia F Pedrosa, Agnes Mori, Carlos F F DE Andrade, Luis A Romano, Paulo C Abreu, Marcelo B Tesser
Four soybean meal-based diets containing increasing levels of an enzyme complex (E50, E100, E150 and E200 at 50, 100, 150 and 200 g ton-1, respectively) and one soybean meal-based diet without the enzyme complex (E0) were fed in triplicate to M. liza juveniles in a semi-static flow system with 20 fish per tank for 75 days. There were no differences between the treatments for animal performance parameters, but fish fed the enzyme complex treatment exhibited significantly (P<0.05) higher values of calcium bone retention compared with control fish...
February 9, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28198919/natural-compounds-from-mexican-medicinal-plants-as-potential-drug-leads-for-anti-tuberculosis-drugs
#3
Rocio Gómez-Cansino, Silvia Laura Guzmán-Gutiérrez, María Guadalupe Campos-Lara, Clara Ines Espitia-Pinzón, Ricardo Reyes-Chilpa
In Mexican Traditional Medicine 187 plant species are used in the treatment of respiratory conditions that may be associated with tuberculosis. In this contribution, we review the ethnobotany, chemistry and pharmacology of 63 species whose extracts have been assayed for antimycobacterial activity in vitro. Among these, the most potent is Aristolochia brevipes (MIC= 12.5 µg/mL), followed by Aristolochia taliscana, Citrus sinensis, Chrysactinia mexicana, Persea americana, and Olea europaea (MIC<64 µg/mL)...
February 9, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28198918/artificial-diet-for-laboratory-rearing-of-condylorrhiza-vestigialis-guen%C3%A3-e-1854-lep-crambidae
#4
Lucas S Campos, Aloisio Coelho, José Roberto P Parra
The Brazilian Poplar Moth, Condylorrhiza vestigialis (Guenée), compromises the wood productivity of poplar trees (Populus sp.), mainly affecting the matchstick industry in southern Brazil. Considering the lack of information on rearing techniques for this insect, the objective of this study was to develop an artificial diet to rear C. vestigialis with biological characteristics similar to the wild insects. A properly diet will enable bio-ecological studies and biological control programs using the baculovirus Condylorrhiza vestigialis multiple nucleopolyhedrovirus (CvMNPV)...
February 9, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28198917/environmental-drivers-on-leaf-phenology-of-ironstone-outcrops-species-under-seasonal-climate
#5
Letícia C Garcia, Fernanda V Barros, José P Lemos-Filho
Banded iron formations (BIF) have a particular vegetation type and provide a good model system for testing theories related to leaf phenology, due to unique stressful environmental conditions. As a consequence of the stressful conditions of BIF environment, we hypothesize that most species would retain at least some significant canopy cover, even at the end of the dry season, independently of growth form - trees, shrubs, and sub-shrubs. Considering the strong seasonality, we also hypothesize that photoperiod and rainfall act as triggers for leaf fall and leaf flushing in these environments...
February 9, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28177054/propolis-from-southwest-of-parana-produced-by-selected-bees-influence-of-seasonality-and-food-supplementation-on-antioxidant-activity-and-phenolic-profile
#6
Matheus A Calegari, Anaclara Prasniewski, Cleidiane DA Silva, Ricardo Y Sado, Fabiana M C Maia, Larissa M S Tonial, Tatiane L C Oldoni
Propolis produced by selected bees Apis mellifera were collected from March to June of 2013 and in March of 2015 and analyzed in order to evaluate the influence of climate, colony of origin, and food supplementation of colonies on the content of total phenolic and flavonoid by chromatographic analysis and antioxidant activity by radical scavenging of 2,2-diphenyl-1-picrylhydrazyl hydrate (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) and ferric reducing antioxidant power (FRAP) methods...
February 6, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28177053/the-use-of-microsatellite-markers-in-neotropical-studies-of-wild-birds-a-literature-review
#7
Renan F Moura, Deborah A Dawson, Denise M Nogueira
Despite extensive habitat fragmentation, the Neotropical region possesses 30% of the world´s bird species. Microsatellites have remained one of the most popular genetic markers and have been used in ecological and conservation studies since the 1990's. We conducted a literature review comparing the number of papers published from January 1990 to July 2015 that used microsatellite markers for studies of wild birds in the Neotropical region, USA and some European countries. We assigned the articles to three categories of studies: population genetics, animal behavior/kinship analysis and the development of species-specific bird microsatellite markers...
February 6, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28177052/reassessment-and-relationships-of-%C3%A2-scutatuspinosus-itapagipensis-teleostei-clupeomorpha-%C3%A2-ellimmichthyiformes-from-the-neocomian-of-rec%C3%A3-ncavo-basin-northeastern-brazil
#8
Francisco J DE Figueiredo, Douglas R M Ribeiro
Clupeomorphs are found in many assemblages of the northeastern Brazil, whose ages range from the Neocomian to Paleogene. Ten species were described. Among them †Scutatuspinosus itapagipensis, a torpedo-like fish found in shales of the Marfim Formation from Bahia, remains poorly known. At first it was positioned within †Scutatuspinosinae and indicated as closely related to †Diplomystus. Diagnoses for the subfamily and genus were based on certain characters masking relationships. Recently it was placed in †Ellimmichthyiformes, but its systematic position remains controversial...
February 6, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28177051/dental-caries-at-lapa-do-santo-central-eastern-brazil-an-early-holocene-archaeological-site
#9
Pedro DA-Gloria, Rodrigo E Oliveira, Walter A Neves
The origin and dispersion of the first Americans have been extensively investigated from morphological and genetic perspectives, but few studies have focused on their health and lifestyle. The archaeological site of Lapa do Santo, central-eastern Brazil, has exceptionally preserved Early Holocene human skeletons, providing 19 individuals with 327 permanent and 122 deciduous teeth dated to 9,250 to 7,500 years BP. In this study, we test whether the inhabitants of Lapa do Santo had high prevalence of dental caries as previous studies of Lagoa Santa collection have indicated, using individual and tooth as units of analyses...
February 6, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27991970/experimental-validation-of-a-bearing-wear-model-using-the-directional-response-of-the-rotor-bearing-system
#10
Tiago Henrique Machado, Katia L Cavalca
The present work gives continuity in the analysis of the wear influence on cylindrical hydrodynamic bearings by presenting an experimental validation of the wear model previously proposed by the authors. This validation is carried on using the frequency response of the rotor-bearings system in directional coordinates. For this purpose, a test rig was assembled in order to evaluate the behavior of the rotating system when supported by hydrodynamic bearings with different wear patterns. The experimental measurements are used to validate the wear model, comparing the anisotropy influence on the experimental and numerical responses...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27991969/effects-of-irrigation-intervals-and-organic-manure-on-morphological-traits-essential-oil-content-and-yield-of-oregano-origanum-vulgare-l
#11
Farzad Gerami, Parviz R Moghaddam, Reza Ghorbani, Abbas Hassani
In order to evaluate the effect of irrigation intervals and cattle manure levels on morphological traits, essential oil content and yield of oregano, an experiment was conducted at the experimental Farm of the Faculty of Agriculture, Urmia University, Iran. The experimental design was split-plots, arranged in randomized complete blocks with three replications. Main plots including irrigation intervals (1, 2 and 3 weeks) and four levels of cattle manure at 0, 10, 20 and 30 t ha-1 were allocated to sub plots...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27991968/genetic-structure-from-the-oldest-jatropha-germplasm-bank-of-brazil-and-contribution-for-the-genetic-improvement
#12
Dalilhia N Dos Santos, Juliano L Ferreira, Tesfahun A Setotaw, Geraldo M A Cançado, Moacir Pasqual, Luciana C N Londe, Heloisa M Saturnino, Wagner A Vendrame
Jatropha is a potential oilseed crop, which requires mitigating factors such as the low genetic variability of the species. The solution runs through the research of Brazilian germplasm. Attention should be given to the germplasm of jatropha the north of Minas Gerais, because this is the oldest national collection and because this region may be a regions of jatropha diversity due to selection pressure arising from environmental adversities. Therefore, the objective of this study was to investigate the genetic diversity of 48 accessions of collection from Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG), using SSR and ISSR markers...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27991967/evaluation-of-deciduous-broadleaf-forests-mountain-using-satellite-data-using-neural-network-method-near-caspian-sea-in-north-of-iran
#13
Seyed A Hashemi
During the recent decades, deciduous forests have been molested by human intervention. Easy access, abundance and diversity of valuable forest products have led to increased population density, creating new residential areas and deforestation activities. Revealing changes is one of the fundamental methods in management and assessment of natural resources. This study is evaluated changes in forests area of 2013 using satellite images. In order to mapping the forest extent condition 2013, images of the mentioned years were digitized and geo-referenced by using the ground control points and the maps of mapping organization...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27991966/genotypic-carriers-of-the-obesity-associated-fto-polymorphism-exhibit-different-cardiometabolic-profiles-after-an-intervention
#14
Greice G Moraes, Cézane P Reuter, Jane D P Renner, Elisa I Klinger, Michele B Ferreira, Elza D DE Mello, Andréia DE M Valim, Miria S Burgos
Background: Children and adolescents with at-risk genotypes (AA/AT) of the rs9939609 polymorphism in FTO, a fat mass and obesity-associated gene, may exhibit different cardiometabolic profile responses than subjects with the TT genotype after an interdisciplinary intervention. Methods: The sample consisted of 36 school children from southern Brazil. We used DNA quantitation and real-time polymerase chain reaction (PCR) for polymorphism genotyping. We measured anthropometric parameters (body mass index (BMI), waist circumference, hip circumference, waist-hip ratio, body fat percentage and skinfold sum), biochemical parameters (glucose, lipid profile, ultra-sensitive C-reactive protein, uric acid, alanine aminotransferase, aspartate aminotransferase, insulin and adiponectin) and blood pressure...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27991965/popular-medicinal-uses-of-calea-uniflora-less-asteraceae-and-its-contribution-to-the-study-of-brazilian-medicinal-plants
#15
Luan S Ramos, Paula S Cardoso, Michele D Freitas, Renato Paghan, Marília S Borges, Vanilde Citadini-Zanette, James W Barlow, Patrícia A Amaral, Silvia Dalbó
Calea uniflora Less. is widely used in southern Santa Catarina (Brazil), but there are no scientific studies which support its use. Then, this study was proposed to determine of the percentage use of C. uniflora in a city of southern Brazil and documentation of the knowledge that the population has about this species. The survey was conducted with semi-structured interviews using a questionnaire applied to 372 participants. In analyzing the results, it was observed that of the 94.1% who recognized C. uniflora, 74...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27991964/analysis-of-labour-risks-in-the-spanish-industrial-aerospace-sector
#16
Juan Laguardia, Emilio Rubio, Ana Garcia, Rafael Garcia-Foncillas
Labour risk prevention is an activity integrated within Safety and Hygiene at Work in Spain. In 2003, the Electronic Declaration for Accidents at Work, Delt@ (DELTA) was introduced. The industrial aerospace sector is subject to various risks. Our objective is to analyse the Spanish Industrial Aerospace Sector (SIAS) using the ACSOM methodology to assess its labour risks and to prioritise preventive actions. The SIAS and the Services Subsector (SS) were created and the relevant accident rate data were obtained...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27991963/iron-restriction-increases-myoglobin-gene-and-protein-expression-in-soleus-muscle-of-rats
#17
Janaina S DE Souza, Erika L Brunetto, Maria Tereza Nunes
Iron is an important trace element for proper cell functioning. It is present in cytochromes, hemoglobin and myoglobin (Mb), where it binds to oxygen. It is also an electron acceptor in the respiratory chain. Mb is an 18 kDa heme-protein, highly expressed in skeletal muscle and heart. The expression of several genes involved in the metabolism of iron is post-transcriptionally regulated by this element. Iron was shown to interfere with the polyadenylation step, modifying their poly (A) tail length and, as a consequence, their stability and translation rate...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27991962/the-complex-link-between-apoptosis-and-autophagy-a-promising-new-role-for-rb
#18
João M A Delou, Deborah Biasoli, Helena L Borges
Physiological processes, as autophagy, proliferation and apoptosis are affected during carcinogenesis. Restoring cellular sensitivity to apoptotic stimuli, such as the antineoplastic cocktails, has been explored as a strategy to eliminate cancer cells. Autophagy, a physiological process of recycling organelles and macromolecules can be deviated from homeostasis to support cancer cells survival, proliferation, escape from apoptosis, and therapy resistance. The relationship between autophagy and apoptosis is complex and many stimuli can induce both processes...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27991961/method-validation-for-determination-of-metals-in-vitis-labrusca-l-grapevine-leaf-extracts-by-inductively-coupled-plasma-mass-spectrometry-icp-ms
#19
Liane V V Bokowski, Roberto B Sobrinho, Cristián J V Armijo, Caroline Dani, João A P Henriques, Cláudia Funchal
Vitis labrusca L. is the main species used for wine and juice production in Brazil. The grapevine leaves can be used both as functional foods and as cheapest sources for the extraction of phenolic compounds. Besides the antioxidant activity, grapevine leaves exhibited significant anti-inflammatory activity. Therefore, the aim of this study was to develop and validate an analytical methodology to determine the metals selenium (96Se), chromium (53Cr), nickel (62Ni), cadmium (111Cd) and lead (206Pb) in 30 samples of grapevine leaf extracts (Vitis labrusca, Bordo cultivar) using inductively coupled plasma mass spectrometry (ICP-MS)...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27991960/agaricus-subrufescens-substratum-nitrogen-concentration-and-mycelial-extraction-method-on-antitumor-activity
#20
Míria B D Bertéli, Ana D Lopes, Itaruã M Colla, Giani A Linde, Nelson B Colauto
Antitumor activity of Agaricus subrufescens has been shown on vegetative mycelium and basidiocarp. However, few studies have assessed the effect of A. subrufescens cultivation conditions and extraction methods on antitumor activity. This study evaluated the effect of nitrogen concentration on the cultivation medium of A. subrufescens and the extraction method of mycelial antineoplastic actives against sarcoma 180 cells implanted in mice. Two nitrogen sources (isolated soybean protein and NaNO3) and 10 nitrogen concentrations (0...
October 2016: Anais da Academia Brasileira de Ciências
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