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Sensitivity of aquatic organisms to ethanol and its potential use as bioindicators

Abstract: The aim of this research was to evaluate the feasibility for the use of the organisms Lemna minor, Azolla caroliniana, Hyphessobrycon eques, Pomacea canaliculata and Daphnia magna as exposure bioindicators for ethanol (lethal and effective concentration 50% -

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Fungal production of the anti-leukemic enzyme L-asparaginase:from screening to medium development

Abstract: The treatment of acute lymphoblastic leukemia is challenging due to side effects, efficacy of the available drugs, and costs. Utilization of L-asparaginase as a therapeutic agent is essential to increase survival of patients. However, costs are elevated and t

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The family Bignoniaceae in the Environmental Protection Area Serra Branca, Raso da Catarina, Jeremoabo, Bahia, Brazil

Abstract: Bignoniaceae comprises 82 genera and 827 species distributed mostly in tropical and subtropical regions, with a few species in temperate climates, and is most diverse in South America. The Brazil is the center of diversity for the group, with about 406 specie

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The population structure of Lonchocarpus cultratus in an Atlantic Forest riparian zone of the upper Paraná River, Brazil

Abstract: The goal of this study was to evaluate the population structure of Lonchocarpus cultratus located in a riparian zone in the flood plain of the upper Paraná River. Data were collected on the stem diameter at breast height (DBH) and the plant height from two ph

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Diaspore bank of aquatic macrophytes maintaining species diversity in a Neotropical pond

Abstract: The diaspore bank is an important component of biological diversity acting mainly as storage and source of diaspores, which also indicate dynamics and patterns of maintenance of plant diversity. We tested the hypothesis that the diaspore bank would be the res

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Fish trophic structure in a first order stream of the Iguatemi River basin, Upper Paraná River, Brazil

Abstract: We described the spatial distribution of fish trophic groups in the Água Boa Stream, MS, Brazil. Specimens were caught using electrofishing in the upper, intermediate and lower stretches of the stream, between March and November 2008. We analyzed 415 stomach

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Cd, Cu, and Mn from Uruguay River Basin in Uruguaiana, RS, Brazil, and their toxicological potential for human leukocyte

Abstract: This study assessed the limnology from the Medium Uruguay River Basin in Uruguaiana, Brazil, with a focus on the concentration of heavy metals (Cd, Cu, and Mn), to assess the toxicological potential (cytotoxicity and genotoxicity) for humans using as biologic

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Cannibalism among Myrmeleon brasiliensis larvae (Návas, 1914) (Neuroptera, Myrmeleontidae)
Tatiane do Nascimento Lima

Abstract: Cannibalism is influenced by various intrinsic and extrinsic factors of the population, such as density, population structure, prey availability, habitat structure and famine. These factors acting either independently or in synergy determine the frequency of

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Use of murinometrics indices and bioelectrical impedance (BIA) inthe determination of experimental obesity in oophorectomized rats

Abstract: In this study, we tested the use of murinometric indices and bioimpedance (BIA) to determine obesity in rats. Female Wistar rats (8 weeks/130-160 g) were divided into control and oophorectomy group. The Body Mass Index (BMI) and Lee index (LI) were used as an

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Distinct strains of Staphylococcus aureus lead to different inflammatory response patterns in a murine model of intradermal infection

Abstract: Staphylococcus aureus infection may lead to the development of soft tissue damage. It has been evaluated in other researches using different animal models. In addition, the inflammatory response developed by the host organism facing an infection by this patho

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Protective effects of ethanolic extract from the red algae Amansia multifida on experimental inflammation, nociception and seizure experimental models

Abstract: This study aimed to investigate the EEAm effect in mice models of nociception, inflammation and in behavioral tests evaluating the central nervous system. EEAm had inhibitory effects in the following tests: acetic acid-induced writhing (78%); formalin (62% -

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Polysaccharide extract of Mimosa tenuiflora stem barks stimulates acute inflammatory response via nitric oxide

Abstract: Mimosa tenuiflora (Mimosaceae) or “jurema-preta” is well distributed in the northeast Brazil, being popularly used to treat skin lesions, burns and inflammation. The healing effect of the alcoholic extract prepared with its barks corroborates the popular use.

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Ecophysiological, anatomical and ultrastructural characteristics of Vitex polygama Cham. (Verbenaceae) submitted to different concentrations of fluoride

Abstract: Fluorides released during the manufacture of aluminum, fertilizers, glass and ceramics are considered to be highly toxic to plants, causing damages in relatively small concentrations. This study aimed to evaluate fluoride (F) accumulation and its effects on V

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Record and foraging behavior of ants (Hymenoptera, Formicidae) in vertebrate carcasses

Abstract: Knowing the importance of participation by insects at cadaverous decomposition processes, and the limited use of the family Formicidae in criminal investigations, this study aims to record the foraging activity of four genera of ants in carcasses of birds and

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Molecular markers in studies on fish parasites (Platyhelminthes): Review

Abstract: Studies with molecular markers are currently more common for all groups of living organisms. Molecular techniques used in Platyhelminthes parasites of fishes do not merely reveal complex life cycles, but are important for species distinction and the elucidati

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