Effect of phosphorus on the toxicity of zinc to the microalga Raphidocelis subcapitata.

abstract：:This study investigates the relationships between yield and evaporation as a function of lake morphology in semi-arid Brazil. First, a new methodology was proposed to classify the morphology of 40 reservoirs in the Ceará State, with storage capacities ranging from approximately 5 to 4500 hm3. Then, Monte Carlo simulat...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Campos JN,Lima IE Neto,Studart TM,Nascimento LS

更新日期：2016-05-31 00:00:00

abstract：:Antagonistic interactions among predators have the potential to dampen top-down impacts on a shared pest. Strong cannibalism by adults and larvae on eggs along with a stronger intraguild predation by Eriopis connexa on Cycloneda sanguinea (Coccinellidae) than vice versa had been documented. The intensity and direction...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Rocca M,Rizzo E,Greco NM

更新日期：2020-07-31 00:00:00

abstract：:The aim of this study was to evaluate potential DNA damage and cytotoxicity in pathology laboratory technicians exposed to organic solvents, mainly xylene. Peripheral blood and buccal cells samples were collected from 18 technicians occupationally exposed to organic solvents and 11 non-exposed individuals. The technic...

journal_title：Anais da Academia Brasileira de Ciencias

authors： de Aquino T,Zenkner FF,Ellwanger JH,Prá D,Rieger A

更新日期：2016-03-01 00:00:00

abstract：:Given a montmorillonitic clay soil at high porosity and saturated by monovalent counterions, we investigate the particle level responses of the clay to different external loadings. As analytical solutions are not possible for complex arrangements of particles, we employ computational micromechanical models (based on t...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Narsilio GA,Smith DW,Pivonka P

更新日期：2010-03-01 00:00:00

abstract：:This paper records the first report of Megastigmus transvaalensis Hussey (Hymenoptera: Torymidae) in Brazilian peppertree, Schinus terebinthifolius Raddi (Anacardiaceae) drupes in Sorocaba, state of São Paulo, Brazil. This wasp is an invasive species and was found damaging S. terebinthifolius drupes in urban areas (35...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Ferreira-Filho PJ,Piña-Rodrigues FC,Silva JM,Guerreiro JC,Ghiotto TC,Piotrowski I,Dias LP,Wilcken CF,Zanuncio JC

更新日期：2015-10-01 00:00:00

abstract：:Estuarine sediments represent important pools of trace metals, released from both anthropogenic and natural sources. Fluctuations in the water column physicochemical conditions, on the other hand, may transfer metals from solid to liquid compartment and resulting in contamination of the surrounding environment. The pr...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Silva CARE,Fonseca EMD,Grotto BW,Souza FES,Baptista JA Neto

更新日期：2017-10-01 00:00:00

abstract：:Establishment of infection by Trypanosoma cruzi, the agent of Chagas' disease, depends on a series of events involving interactions of diverse parasite molecules with host components. Here we focus on the mechanisms of target cell invasion by metacyclic trypomastigotes (MT) and mammalian tissue culture trypomastigotes...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Yoshida N

更新日期：2006-03-01 00:00:00

abstract：:The bee Melipona scutellaris is considered the reared meliponine species with the largest distribution in the North and Northeast regions of Brazil, with records from the state of Rio Grande do Norte down to the state of Bahia. Considering the importance of this species in the generation of income for family agricultu...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Alves RM,Carvalho CA,Souza BA,Santos WS

更新日期：2012-09-01 00:00:00

abstract：:Specimens of Leptogium collected in ten localities from the State of Rio Grande do Sul were studied. Sixteen species were found of 28 records mentioned to the state, which represents around 57% of the Leptogium diversity known for Rio Grande do Sul. Leptogium exaratum is proposed as a new species. Leptogium atlanticum...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Kitaura MJ,Koch NM,Lucheta F,Käffer MI,Schmitt JL,Pedroso J,Martins SA,Rodrigues AS,Canêz LS

更新日期：2019-02-14 00:00:00

abstract：: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....

journal_title：Anais da Academia Brasileira de Ciencias

authors： Machado TH,Cavalca KL

更新日期：2016-10-01 00:00:00

abstract：:Effects of Aspergillus niger was investigated on the strength of cotton textile specimens impregnated with nano-wollastonite, and then compared with normal specimens. Cotton strips were cut and prepared in warp and wept directions according to the standard specifications ASTM D-5035. Results showed that incubation of ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Taghiyari HR,Majidinajafabadi R,Vahidzadeh R

更新日期：2018-09-01 00:00:00

abstract：:Eimeriosis is caused by a protozoan parasite of the genus Eimeria and infection affecting most domestic animal species. The aim of this research was to comprehend the impact of selenium nanoparticles (SeNPs) on eimeriosis induced by Eimeria papillata in mouse jejunum, and how they work as antioxidants and anti-apoptot...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Alkhudhayri A,Al-Shaebi EM,Qasem MAA,Murshed M,Mares MM,Al-Quraishy S,Dkhil MA

更新日期：2020-06-03 00:00:00

abstract：:This article aims to identify and suggest data science strategies to strengthen scientific research in astronomy. The improvements in data workflow performance that can be provided by these strategies can be crucial to the multimessenger astronomy (MMA). A special focus is given to the treatment of raw data in the con...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Rosa RR

更新日期：2020-09-28 00:00:00

abstract：UNLABELLED:Thirty-five patients (23 males and 12 females), age 35 +/- 13 years old, presenting either idiopathic calcium nephrolithiasis, nephrocalcinosis or mild renal failure with idiopathic calcium nephrolithiasis were selected for the analysis of low molecular weight proteinuria and the possible mutations occurrenc...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Rebelo MA,Tostes V,Araújo NC,Martini SV,Botelho BF,Guggino WB,Morales MM

更新日期：2005-03-01 00:00:00

abstract：:Sugarcane crop conventional tillage has been replaced by deep soil preparation with few studies about its effect on soil quality and sustainability. The aim of this study was to assess structural volumes ina dystrophic Red-Yellow Latosol subjected to conventional tillage (CT) and deep localized soil tillage (DLST) to ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Garcia DM,Silva CG,Lansa VR,Nery EM,Silva NS,Alberton O,Colauto NB,Silva APD

更新日期：2020-01-01 00:00:00

abstract：:The altered expression of the SOX2 transcription factor is associated with oncogenic or tumor suppressor functions in human cancers. This factor regulates the migration and invasion of different cancer cells. In this study we investigated the effect of constitutive SOX2 overexpression on the migration and adhesion cap...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Drakulic D,Vicentic JM,Schwirtlich M,Tosic J,Krstic A,Klajn A,Stevanovic M

更新日期：2015-03-01 00:00:00

abstract：:This study aimed to describe the occurrence, morphology and prevalence of Spirocamallanus krameri, a parasite of Hoplerythrinus unitaeniatus collected in state of Pará, Brazil. The morphological and morphometric characteristics are consistent with the species S. krameri, by having a hexagonal mouth opening, 16 cephali...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Pinheiro RHS,Cardoso PJC,Monks S,Santos JN,Giese EG

更新日期：2020-10-28 00:00:00

abstract：:Coffee is one of the most important Brazilian agricultural commodities exported, and Minas Gerais and Espírito Santo States are the main coffee producers. Scale insects are important coffee pests, and 73 species of Cerococcidae (3), Coccidae (18), Diaspididae (6), Eriococcidae (1), Ortheziidae (3), Pseudococcidae (21)...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Fornazier MJ,Martins DS,Willink MCG,Pirovani VD,Ferreira PSF,Zanuncio JC

更新日期：2017-10-01 00:00:00

abstract：:Leaves of Psidium guajava L. (guava) have been widely used in the popular way for prevention and treatment of various diseases. Thus, the objective of this study was to evaluate the inhibitory potential of leaves aqueous extract from three cultivars of P. guajava (Pedro Sato, Paluma and Século XXI) on α-amylase, α-gly...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Simão AA,Marques TR,Marcussi S,Corrêa AD

更新日期：2017-01-01 00:00:00

abstract：:This study aimed at describing daily and seasonal variation in the activity of a population of South-American rattlesnakes (Crotalus durissus) in a savanna like habitat (Cerrado) in Southeastern Brazil. Seasonal and daily activities of snakes were evaluated by the number of captures of snakes during road surveys, acci...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Tozetti AM,Martins M

更新日期：2013-09-01 00:00:00

abstract：:This paper records the first occurrence of the genus Myrmicium Westwood, 1854 in the Cretaceous of Gondwana and describes it as a new species Myrmicium araripterum sp. nov, based on the most complete specimen of this genus yet known, which represents the largest specimen of the grade "Symphyta" ever found in the Crato...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Freitas LCB,Rasnitsyn AP,Moura GJB,Mendes M

更新日期：2020-01-01 00:00:00

abstract：:Extreme climatic events and their hazards have strong impact on society. Urban areas in Brazil are especially vulnerable to the impact of such events due to their rapid growth and inappropriate infrastructure. Viçosa is a mid-sized city in Southeastern Brazil that has been experiencing issues associated with urban exp...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Avila-Diaz A,Justino F,Lindemann DS,Rodrigues JM,Ferreira GR

更新日期：2020-01-01 00:00:00

abstract：:In the adult organism, angiogenesis is restricted to a few physiological conditions. On the other hand, uncontrolled angiogenesis have often been associated to angiogenesis-dependent pathologies. A variety of animal models have been described to provide more quantitative analysis of in vivo angiogenesis and to charact...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Feder D,Perrazo FF,Pereira EC,Forsait S,Feder CK,Junqueira PE,Junqueira VB,Azzalis LA,Fonseca FL

更新日期：2013-01-01 00:00:00

abstract：:The infrared spectrum (amide I' region) of Kunitz soybean trypsin inhibitor (SBTI) was obtained in D2O solution and resolved into Gaussian components. A prominent broad band centered at 1643 cm-1 is shown on the unresolved spectrum, which is usually assigned to N-deuterated peptide groups in an unordered structure, si...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Ventura MM

更新日期：1989-01-01 00:00:00

abstract：:The effects of food restriction (FR) on the morphoquantitative aspects of the wall and myenteric neurons of the proximal colon in adult rats were analysed. FR was imposed by duplication of the experimental brood size in relation to the control brood during lactation. The FR group received a 50% reduction of food from ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Schoffen JP,Vicentini FA,Marcelino CG,Araújo EJ,Pedrosa MM,Natali MR

更新日期：2014-12-01 00:00:00

abstract：:Two experiments (E) were carried out to evaluate the effects of fumaric acid and an acidifier blend [composed by calcium formate, calcium lactate and medium-chain fatty acids (capric and caprylic)] in piglet diets containing colistin (40 ppm) or halquinol (120 ppm) on performance, diarrhea incidence (E1), organs relat...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Grecco HAT,Amorim AB,Saleh MAD,L P Tse M,Telles FG,Miassi GM,Pimenta GM,Berto DA

更新日期：2018-02-19 00:00:00

abstract：:Each animal species selects specific microhabitats for protection, foraging, or micro-climate. To understand the distribution patterns of small mammals on the ground and in the understorey, we investigated the use of microhabitats by small mammals in a deciduous forest of southern Brazil. Ten trap stations with seven ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Melo GL,Miotto B,Peres B,Cáceres NC

更新日期：2013-04-01 00:00:00

abstract：:We report for the first time the occurrence of organic-walled microfossils in Ediacaran limestones and marls of the Frecheirinha Formation, Ubajara Group, and the first Precambrian acritarchs so far reported for northeastern Brazil. The assemblage of the Frecheirinha Formation represents a low-diversity microflora com...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Chiglino L,Gaucher C,Sial AN,Ferreira VP

更新日期：2015-04-01 00:00:00

abstract：:The specific concept of G. geckoides was initially ascertained based on a topotypical sample from Salvador, Bahia. Geographic differentiation was studied through the analysis of two meristic characters (tubercles in a paramedian row and fourth toe lamellae) and color pattern of 327 specimens from 23 localities. It is ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Vanzolini PE

更新日期：2004-12-01 00:00:00

abstract：:The aim of this study was to investigate the polliniferous floral sources used by Apis mellifera (L.) (africanized) in an apiary situated in Pará de Minas, Minas Gerais state, and evaluate the pollen prefences among the beehives. Two beehives of Langstroth type with frontal pollen trap collectors were used. The harves...

journal_title：Anais da Academia Brasileira de Ciencias

authors： da Luz CF,Bacha Junior GL,Fonseca RL,Sousa PR

更新日期：2010-06-01 00:00:00