Mercury concentrations in fish from the Itacaiúnas-Parauapebas River system, Carajás region, Amazon.

abstract：:In this paper, we prove that the dimension of the second space of reduced L2 cohomology of M is finite if is a complete noncompact hypersurface in a sphere ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Zhu P

更新日期：2016-10-01 00:00:00

abstract：:This study investigated the dynamics of cyanobacteria in two deep, eutrophic reservoirs in a semi-arid region of Brazil during periods of stratification and destratification. Four collections were carried out at each reservoir at two depths at three-month intervals. The following abiotic variables were analyzed: water...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Dantas EW,Moura AN,Bittencourt-Oliveira Mdo C

更新日期：2011-12-01 00:00:00

abstract：:This study investigated the effects of stocking density and dietary supplementation of probiotic (Lactobacillus) on growth, traits of carcass, lymphoid organs and intestinal microbial count of Japanese quail. Quail chicks (one week old) were randomly allotted to 6 groups in a 2×3 factorial experiment included 2 levels...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Mahrose KM,Elhack MEA,Mahgoub SA,Attia FAM

更新日期：2019-01-01 00:00:00

abstract：:The purpose of this study was to analyze the seasonal variation in the nutrient and pigment content of leaves from five tree species - of which three are perennial (Cupania vernalis, Matayba elaeagnoides and Nectandra lanceolata) and two are deciduous (Cedrela fissilis and Jacaranda micrantha) - in an ecotone between ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Bündchen M,Boeger MR,Reissmann CB,Geronazzo KM

更新日期：2016-01-01 00:00:00

abstract：:Chicken meat in two different forms (chicken meat and chicken meat powder) were added into white flour and whole wheat blend baguette bread formulations for protein enrichment and finally developing new and healthy snacks. The chicken meat and powder levels were 10% for white flour baguette, and 15% for whole wheat bl...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Cakmak H,Altinel B,Kumcuoglu S,Kisla D,Tavman S

更新日期：2016-10-01 00:00:00

abstract：:Primaquine and chloroquine are used for the treatment of malaria; evidence from the literature suggests that these drugs may induce oxidative stress. In this study we investigated the effects of primaquine and chloroquine on oxidative damage and DNA damage in brain, liver and kidney of rats after 7, 14 and 21 days of ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Giovanella F,Ferreira GK,de Prá SD,Carvalho-Silva M,Gomes LM,Scaini G,Gonçalves RC,Michels M,Galant LS,Longaretti LM,Dajori AL,Andrade VM,Dal-Pizzol F,Streck EL,de Souza RP

更新日期：2015-08-01 00:00:00

abstract：:Aged skin, featured with dryness and wrinkles, has received mounting attention due to its adverse influences on beauty. β-Sitosterol and vermicularin are two common active ingredients of Thamnolia vermicularis (Sw.) Ach., a traditional Chinese medicine, of which the anti-aging effect has been discovered. Their protect...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Haiyuan YU,Shen X,Liu D,Hong M,Lu Y

更新日期：2019-12-02 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：:Cyperaceae is an angiosperm family with the greatest diversity of species with Kranz anatomy. Four different types of Kranz anatomy (chlorocyperoid, eleocharoid, fimbristyloid and rhynchosporoid) have been described for this angiosperm family, and the occurrence and structural characteristics of these types are import...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Martins S,Alves M,Scatena VL

更新日期：2015-10-01 00:00:00

abstract：:Observations on the ecology of silvatic Triatominae are still fragmentary, principally because target species in control process are almost exclusively domestic. Report of silvatic species invading human dwellings must lead research to be focused on their original ecology, in order to assist in understanding their pro...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Noireau F,Carbajal-de-la-Fuente AL,Lopes CM,Diotaiuti L

更新日期：2005-09-01 00:00:00

abstract：:This paper presents a sedimentological and stratigraphical study of Quaternary (Middle to Late Pleistocene/Holocene) continental carbonates outcrops inside Pantanal Basin and its surroundings, especially in Serra da Bodoquena, Pantanal do Miranda and Corumbá/Ladário plateau, in the state of Mato Grosso do Sul, as well...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Oliveira EC,Rossetti DF,Utida G

更新日期：2017-05-01 00:00:00

abstract：:This paper promotes a reflection on the relationship between daily practices and consumption. Understanding how conflicts, resistance and consensus are generated from daily consumption practices opens up possibilities for reflecting on the construction of sustainability in the context of diversity, one of the landmark...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Mazzarino JM,Morigi VJ,Kaufmann C,Farias AM,Fernandes DA

更新日期：2011-12-01 00:00:00

abstract：:The isolated chick retina provides an in vitro tissue model, in which two protocols were developed to verify the efficacy of a peptide in the excitability control of the central gray matter. In the first, extra-cellular potassium homeostasis is challenged at long intervals and in the second, a wave is trapped in a rin...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Lima VM,Piqueira JR,Hanke W

更新日期：2009-03-01 00:00:00

abstract：OBJECTIVE:the aim of this study is to map thermal stress risks for human health at the São Francisco River Basin (SFRB) in the Semiarid region, for climatic scenarios RCP 4.5 and 8.5. METHODS:The heat stress conditions were defined by the Wet Bulb Globe Temperature (WBGT) indicator and by the average number of annual ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Oliveira BFA,Silveira IH,Feitosa RC,Horta MAP,Junger WL,Hacon S

更新日期：2019-10-07 00:00:00

abstract：:Experiments in this paper demonstrate that mitochondrial damage associated to NAD(P)+-induced Ca2+ efflux, is the consequence of inappropriate reaction conditions. The major findings are (i) Added oxaloacetate and acetoacetate readily oxidize NAD(P)H in intact rat liver mitochondria without causing swelling or membran...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Vercesi AE

更新日期：1985-09-01 00:00:00

abstract：:Acute intermittent porphyria is the most common acute porphyria caused by a decrease in hepatic porphobilinogen deaminase activity, resulting in an accumulation of delta-aminolevulinic acid and porphobilinogen. This disease shows nonspecific signs and symptoms that can be confused with other diseases, thereby making t...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Dos Santos AR,De Albuquerque RR,Doriqui MJ,Costa GC,Dos Santos AP

更新日期：2013-09-01 00:00:00

abstract：:Piper hispidinervum C. DC. is popularly known as long-pepper and it owns a commercial value due to the essential oil it produces. Long-pepper oil is rich in safrole and eugenoln components that have insecticidal, fungicidal and bactericidal activity. It has been establish that to medicinal plants light influences not ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Lima VA,Pacheco FV,Avelar RP,Alvarenga ICA,Pinto JEBP,Alvarenga AA

更新日期：2017-04-01 00:00:00

abstract：:Spatial variation in the environment may be an important source of morphological variation in many organisms. Tadpoles are valuable model organisms for studies of morphological variation, and in particular, the evaluation of the relationship between environmental and morphological variables. In heterogeneous environme...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Lopes GN,Serra RTA,Piorski NM,Andrade GV

更新日期：2020-11-02 00:00:00

abstract：:Saccharum spontaneum has been used for the development of energy cane a crop aimed to be used for the production of second-generation ethanol, or lignocellulosic ethanol. Lignin is a main challenge in the conversion of cell wall sugars into ethanol. In our studies to isolate the genes the lignin biosynthesis in S. spo...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Llerena JPP,Araújo P,Mazzafera P

更新日期：2018-01-01 00:00:00

abstract：:Urolithiasis is a disorder of kidneys in which stones formation occur due to the excessive deposition of minerals in the urinary tract. It affects 12% of the population worldwide. Salvia hispanica seeds are rich source of quercetin which has preventive role in renal stone formation. The study objective was to explore ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Saleem U,Ahmad N,Shah MA,Anwar F,Ahmad B

更新日期：2020-11-16 00:00:00

abstract：:Environmental stimuli exert important effects on the expression of the endogenous rhythms. Daily movements of groups of parrots in response to the light/dark cycle have been studied by several researchers. However, the factors modifying the intrinsic rhythmicity of this behaviour remain little known. This study descri...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Moura LN,Silva ML,Vielliard JM

更新日期：2012-06-01 00:00:00

abstract：:Helicoverpa gelotopoeon is an endemic pest of South America that affects soybean and other important crops. Life tables are a fundamental tool used to study insect populations, resulting in crucial information for integrated pest management programs. Therefore, the aim of this study was to evaluate the biotic potentia...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Herrero MI,Dami LC,Fogliata SV,Casmuz AS,Gómez DRS,Gastaminza GA,Murúa MG

更新日期：2018-10-01 00:00:00

abstract：:This work describes the chemical composition and antimicrobial activity of the volatile oils of Ocimum canum and Ocimum selloi, both occurring in Jequié/BA, northeastern Brazil. The plants were collected in the winter/2005 and summer/2006, the oils extracted by steam distillation and further analyzed by GC-MS. A total...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Nascimento JC,Barbosa LC,Paula VF,David JM,Fontana R,Silva LA,França RS

更新日期：2011-09-01 00:00:00

abstract：:Chemical transformations of eremantholide C (1), a sesquiterpene lactone that was isolated from Lychnophora trichocarpha Spreng. led to five new derivatives: 1',2'- epoxyeremantholide C (2), 5-n-propylamine-4,5-dihydro-1',2'-epoxyeremantholide C (3), 5-n-propylammonium-4,5-dihydro-1',2'-epoxyeremantholide C chloride (...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Saúde-Guimarães DA,Raslan DS,Chiari E,De Oliveira AB

更新日期：2014-12-01 00:00:00

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：:During the ageing process the enteric nervous system undergoes morphofunctional changes, such as enteric neurodegeneration. Neuronal death can be attributed to increase radicals free, and ascorbic acid (AA), known antioxidant, could minimize damage cause by oxidative stress. The objective of this study is to analyse t...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Mello SA,Marese AC,Brancalhão RM,Zanoni JN,Natali MR

更新日期：2013-03-01 00:00:00

abstract：:Stem bleeding disease (resinosis) of coconut palm is caused by Thielaviopsis paradoxa and is very important in the state of Sergipe, Brazil. Understanding the epidemiological behavior of the disease is essential for establishing more efficient control strategies. Thus, we characterized the temporal progression and spa...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Carvalho RR,Souza PE,Warwick DR,Pozza EA,Filho JL

更新日期：2013-01-01 00:00:00

abstract：:The aim of this study was to analyze the data of endoscopy and symptoms in 118 Mexican patients with irritable bowel syndrome (IBS), dyspepsia, non-erosive reflux disease (NERD) and erosive esophagitis (EE). IBS criteria were fulfilling for dyspepsia patients in 47%, for NERD in 48%, and for EE patients in 48% of case...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Camacho S,Bernal F,Abdo M,Awad RA

更新日期：2010-12-01 00:00:00

abstract：:Streamwater is affected by several processes in the watershed including anthropogenic activities that result in changes in water quality as well as in the functioning of these stream ecosystems. Therefore, this work aims to evaluate the concentration of major ions (Ca(2+), Mg(2+), Na(+), K(+), NH4(+), NO3(-), NO2(-), ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Silva DM,Camargo PB,McDowell WH,Vieira I,Salomão MS,Martinelli LA

更新日期：2012-12-01 00:00:00

abstract：:In this work we study the problem of modeling identification of a population employing a discrete dynamic model based on the Richards growth model. The population is subjected to interventions due to consumption, such as hunting or farming animals. The model identification allows us to estimate the probability or the ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Loibel S,Andrade MG,do Val JB,de Freitas AR

更新日期：2010-12-01 00:00:00