Evaluation of the catalytic activity of lipases immobilized on chrysotile for esterification.

abstract：:The Bahía Blanca estuary (Argentina) has a morphological configuration resulting from hydrological and sedimentary processes related to Late Quaternary sea level changes. This estuarine system occupies a large coastal plain with a dense net of tidal channels, low-altitude islands and large intertidal flats. Little is ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Aliotta S,Ginsberg SS,Giagante D,Vecchi LG,Salvatierra MM

更新日期：2014-06-01 00:00:00

abstract：:Since William James (1890) first distinguished primary from secondary memory, equivalent to short- and long-term memory, respectively, it has been assumed that short-term memory processes are in charge of cognition while long-term memory is being consolidated. From those days a major question has been whether short-te...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Vianna MR,Izquierdo LA,Barros DM,Walz R,Medina JH,Izquierdo I

更新日期：2000-09-01 00:00:00

abstract：:Life history traits are considered key indicators of plant invasibility. Among them, the germination behavior of seeds is of major relevance because it is influenced by environmental factors of invaded ecosystem. Here, we investigated how seed traits and seed tolerance to environmental factors on seed germination of C...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Leal LC,Meiado MV,Lopes AV,Leal IR

更新日期：2013-09-01 00:00:00

abstract：:Abstract: Riostegotherium yanei from the Itaboraí Basin, Brazil, is the oldest known Xenarthra. This paper aims to describe the internal morphology of the osteoderms of Riostegotherium yanei from the perspective of histology and micro-CT approaches, expanding the available data on cingulate osteoderm microstructure. ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Bergqvist LP,Pereira PVLGC,Machado AS,Castro MC,Melki LB,Lopes RT

更新日期：2019-09-02 00:00:00

abstract：:It is known that hormones influence significantly the prostate tissue. However, we reported that mating induces an increase in androgen receptors, revealing a neural influence on the gland. These data suggested that somatic afferents (scrotal and genitofemoral nerves) and autonomic efferents (pelvic and hypogastric ne...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Diaz R,Garcia LI,Locia J,Silva M,Rodriguez S,Perez CA,Aranda-Abreu GE,Manzo J,Toledo R,Hernandez ME

更新日期：2010-06-01 00:00:00

abstract：:Over the past two decades, the record of South American unenlagiine dromaeosaurids was substantially increased both in quantity as well as in quality of specimens. Here is presented a summary review of the South American record for these theropods.Unenlagia comahuensis, Unenlagia paynemili, and Neuquenraptor argentinu...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Gianechini FA,Apesteguia S

更新日期：2011-03-01 00:00:00

abstract：:Cynodonts represent the transition from reptiles to mammals. They are classified as synapsids, or tetrapod animals with mammalian characteristics. We present here the finding of helminth eggs in a coprolite identified as of cynodont origin dated of nearly 240 million years. Microscopy revealed the presence of very wel...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Silva PA,Borba VH,Dutra JM,Leles D,da-Rosa AA,Ferreira LF,Araujo A

更新日期：2014-03-01 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：:The atmospheric dispersion atmospheric plume of the metropolitan region and neighborhoods of the city of Rio de Janeiro was investigated through elemental analyzes (Na, K, Al, Mn, Pb, Ni, Cr) and stable lead isotopes in two epiphytes; the lichen Parmotrema crinitum (Ach.) and the bromeliad Tillandsia usneoides (L.). A...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Marques Junior AN,Panetto DP,Lamego F,Nepomuceno FO,Monna F,Losno R,Guillon R

更新日期：2018-07-01 00:00:00

abstract：:The objective of this work was to study the reduction in the capsaicin toxicity by encapsulation in liposomes. Capsaicin was extracted from peppers and characterized with high performance liquid chromatography (HPLC). We determined the zeta potential, polydispersivity index (PdI) and vesicle size of liposomes. Wistar ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Cirino LM,Vergne DM,Santana PF,Almeida ED,Costa LP,Albuquerque-Júnior RL,Lima-Verde IB,Padilha FF,Cardoso JC

更新日期：2016-09-01 00:00:00

abstract：:Lyroglossa and Pteroglossa (Orchidaceae: Spiranthinae) are first recorded for Rio Grande do Sul. Descriptions, illustrations, taxonomic notes and distribution are presented. We also provide an artificial key to distinguish the genera of the "Stenorrhynchos Clade" reported so far in Rio Grande do Sul. ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Buzatto CR,Singer RB,Bordignon SAL

更新日期：2014-06-01 00:00:00

abstract：:Programs of Science and Technology research have grown significantly in Brazil over the last decades. Until the 1980s the so-called undirected programs, without specific goals and requiring only scientific merit, prevailed. The few programs with defined goals in this period were never objectively assessed. The same si...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Pian CA,Meneghini R

更新日期：2007-09-01 00:00:00

abstract：:The study of radiation entrance and exit dynamics and energy consumption in a system is important for understanding the environmental processes that rule the biosphere-atmosphere interactions of all ecosystems. This study provides an analysis of the interaction of energy in the form of photosynthetically active radiat...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Curado LF,Musis CR,Cunha CR,Rodrigues TR,Pereira VM,Nogueira JS,Sanches L

更新日期：2016-09-01 00:00:00

abstract：:Proteolytic enzymes have a fundamental role in many biological processes and are associated with multiple pathological conditions. Therefore, targeting these enzymes may be important for a better understanding of their function and development of therapeutic inhibitors. Fluorescence Resonance Energy Transfer (FRET) pe...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Carmona AK,Juliano MA,Juliano L

更新日期：2009-09-01 00:00:00

abstract：:The focus of this study was to test the hypothesis that there would be no difference between the biocompatibility of resin-modified glass ionomer cements. Sixty male Wistar rats were selected and divided into four groups: Control Group; Crosslink Group; RMO Group and Transbond Group. The materials were inserted into r...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Mesquita JA,Lacerda-Santos R,Sampaio GAM,Godoy GP,Nonaka CFW,Alves PM

更新日期：2017-01-01 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：:Long-term potentiation (LTP) is the enhancement of postsynaptic responses for hours, days or weeks following the brief repetitive afferent stimulation of presynaptic afferents. It has been proposed many times over the last 30 years to be the basis of long-term memory. Several recent findings finally supported this hyp...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Izquierdo I,Cammarota M,Da Silva WC,Bevilaqua LR,Rossato JI,Bonini JS,Mello P,Benetti F,Costa JC,Medina JH

更新日期：2008-03-01 00:00:00

abstract：:The present study aimed to assess the accuracy of linear measurements performed with two software packages in multislice (MSCT) and cone beam (CBCT) computed tomography (CT) images. The sample consisted of 10 human mandibles marked standardly 8 times with metallic orthodontic wires. The mandibles underwent both MSCT a...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Silva AALS,Franco A,Fernandes Â,Costa C,Barbosa JS,Westphalen FH

更新日期：2017-10-01 00:00:00

abstract：:Candida is a human fungal pathogen that causes a wide range of diseases. Candida albicans is the main etiologic agent in these diseases; however, infections can be caused by non-albicans Candida species. Virulence factors such as biofilm production, which protect the fungus from host immunity and anti-fungal drugs, ar...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Scorzoni L,Menezes RT,Pereira TC,Oliveira PS,Ribeiro FC,Santos ELS,Fugisaki LRO,Oliveira LD,Amorim JBO

更新日期：2020-12-11 00:00:00

abstract：:Urotrema scabridum Braun 1900 and Urotrema macrotestis Mané-Garzón and Telias 1965 are reported from the small intestine of Eumops glaucinus (Wagner, 1843). The species were differentiated by the body width, the size and position of acetabulum, the size of testis, the caecal termination, and the distribution of vitell...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Mello ÉM,Rabelo ÉML,Silva RJD

更新日期：2019-03-21 00:00:00

abstract：:We investigated reproductive features of the dipsadid snake Erythrolamprus poecilogyrus sublineatus in the southernmost Brazilian coast, a subtropical region characterized by well-marked seasons. Females are significantly smaller than males, have a shorter tail, and reach sexual maturity at later times along their dev...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Quintela FM,Marques WC,Loebmann D

更新日期：2017-01-01 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：: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：:Most herbicides applied in crop field, stay in the soil for a period, affecting next crop or even the plants using as green manure. Nowadays, the use of herbicides grow to increase productivity, mainly in the grain producing region north of Rio Grande do Sul state. The objective of this study was to evaluate the effec...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Alves C,Costa E,Sofiatti JR,Forte CT,Winter FL,Holz CM,Kaizer RR,Galon L

更新日期：2018-04-01 00:00:00

abstract：:The objective of this study was to estimate variance components for performance and carcass traits in a paternal broiler line. The (co)variance components were estimated by the restricted maximum likelihood method applied to the animal model, including the fixed effect of group (sex and hatch) and additive genetic and...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Cruz VAR,Grupioni NV,Mendonça GG,Venturini GC,Ledur MC,Peixoto JO,Munari DP

更新日期：2020-01-01 00:00:00

abstract：:This paper presents information from different sampling surveys carried out along the Santa Catarina coast in order to outline the biogeographical characteristics of the zooplankton in this region and identify species or groups of species with potential use as bioindicators. Based on a checklist of species of the zoop...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Resgalla C Jr

更新日期：2011-06-01 00:00:00

abstract：:Black Mulberry (Morus nigra L.) belongs to Moraceae family. The present study evaluated the possible genotoxic and/or protective activities of black mulberry fruit juice (BMFJ), in vitro, using mitomycin C (MMC) as a positive control, by chromosomal aberrations and micronucleus assays. Human lymphocytes were treated w...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Yilmaz S,Uçar A,Göktaş B

更新日期：2019-10-28 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：:The objective of this study was to investigate the effects of 2% L-glutamine supplementation on myenteric innervation in the ileum of diabetic rats, grouped as follows: normoglycemic (N); normoglycemic supplemented with L-glutamine (NG); diabetic (D); and diabetic supplemented with L-glutamine (DG). The ileums were su...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Pereira RV,Linden DR,Miranda-Neto MH,Zanoni JN

更新日期：2016-01-01 00:00:00

abstract：:This study presents paleoenvironmental data based on pollen, elemental and isotopic compositions of organic matter (TOC, N, δ(13)C and δ(15)N) and (14)C dating of 170 cm lake sediment record. Samplings have been made in Lagoa Grande at Parque Estadual Turístico do Alto Ribeira - PETAR, Southern São Paulo State, Southe...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Pessenda LC,Saia SE,Gouveia SE,Ledru MP,Sifeddine A,Amaral PG,Bendassolli JA

更新日期：2010-09-01 00:00:00