Rain Cell
Mostrando 1-12 de 23 artigos, teses e dissertações.
-
1. Antiproliferative activity in tumor cell lines, antioxidant capacity and total phenolic, flavonoid and tannin contents of Myrciaria floribunda
ABSTRACT Myrciaria floribunda (H. West ex Willd.) O. Berg, Myrtaceae, is a native plant species of the Atlantic Rain Forest, from north to south of Brazil. The lyophilized ethyl acetate extract from the leaves of M. floribunda was investigated for its antiproliferative activity in tumor cell lines, antioxidant capacity and its total phenolic, flavonoid and t
An. Acad. Bras. Ciênc.. Publicado em: 02/05/2017
-
2. Alkaloids and biological activity of beribá (Annona hypoglauca)
ABSTRACT Annona hypoglauca Mart., Annonaceae, popularly known as “beribá”, was collected in flooded areas of the Amazonian Rain Forest. The crude extract obtained from this species was found to be cytotoxic against human cancer cells. Chemical information on A. hypoglauca is scarce. So, the present work aimed the isolation and identification of its alka
Rev. bras. farmacogn.. Publicado em: 2017-02
-
3. Unified method for the prediction of rain attenuation in satellite and terrestrial links
In this paper, a semi-empirical method for the prediction of rain attenuation in slant paths and terrestrial links is proposed. The method uses the same simplified model of equivalent rain cell that is the basis for the ITU-R rain attenuation prediction methods but, additionally, the concept of an effective rain rate is introduced. This allows the use of the
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2012-06
-
4. PARÂMETROS DE ESTRESSE OXIDATIVO E ESTUDO DE LESÕS HISTOPATOLÓGICAS EM JUNDIÁS (Rhamdia quelen) EXPOSTOS A AGROQUÍMICOS
Due to the proximity of crop and fish culture areas, some agrichemicals that could be harmful for fish could enter into fishponds by different ways, such as by leaching through rain. The contamination of the aquatic environment by pesticides is a problem of global importance because of its toxic effects on non-target organisms. These products may affect toxi
Publicado em: 2010
-
5. Desenvolvimento de procedimentos analíticos limpos e com alta sensibilidade para a determinação de espécies de interesse ambiental / Development of clean analytical procedures with high sensitivity for determination of species of environmental interest
Clean analytical procedures with high sensitivity for the determination of species of environmental interest (carbaryl, sulphate and chlorine) were developed. Flow systems with solenoid micropumps were coupled to long optical pathlength spectrophotometry or cloud point extraction procedures, aiming the concentration of species for determination without emplo
Publicado em: 2009
-
6. ASPECTOS DA BIOLOGIA SOCIAL DA VESPA NEOTROPICAL MISCHOCYTTARUS CONSIMILIS ZIKÁN, 1949 (HYMENOPTERA, VESPIDAE)
Aspects of the social biology of the Neotropical wasp Mischocyttarus consimilis Zikán, 1949 (Hymenoptera, Vespidae) - This work had for objective to study aspects social biology of the Neotropical wasp Mischocyttarus consimilis, of the which specifically understand: 1. colonial phenology; 2. architectonic model of nests and pattern of construction of nests;
Publicado em: 2009
-
7. Impact of technical assistance on milk quality / Impacto da assistência técnica sobre a qualidade do leite
In a globalization context, producing food only focused on quantity makes no more sense. At the same time, the quality becomes the most important step on food processing chain, since its essential to guarantee life quality. Then, we purposed this study to verify the effect of private technical assistance on milk quality. The study was carried out during the
Publicado em: 2008
-
8. Epidemiology of yellow Sigatoka, phenols quantification in banana varieties and phylogenetic analysis of Mycosphaerella musicola isolates using microsatellites / EPIDEMIOLOGIA DA SIGATOKA AMARELA, QUANTIFICAÃÃO DE FENÃIS EM VARIEDADES DE BANANEIRAS E ANÃLISE FILOGENÃTICA DE ISOLADOS DE Mycosphaerella musicola UTILIZANDO MICROSSATÃLITES
Due to the hetherothalic nature and sexual reproduction of the fungus Mycosphaerella musicola, the causal agent of yellow Sigatoka, and considering the climatic diversity of the Brazilian banana producing regions, a wide genetic variability is expected among the Brazilian isolates with distinct virulence and aggressiveness. For a better characterization of y
Publicado em: 2008
-
9. Nitrogen fertilizer management criteria for potato in two planting seasons / Critérios para o manejo da adubação nitrogenada da batata em duas épocas de plantio
The objectives of the thesis were: a) to establish the leaf SPAD critical level; b) to quantify pre-planting and sidedress nitrogen (N) rates to obtain the maximum commercial potato yield; c) to determine the productivity, profitability, N use efficiency and morfo-anatomical characteristics of the potato fourth leaf in relation to N fertilizer management cri
Publicado em: 2007
-
10. PLANEJAMENTO DE SISTEMAS FIXOS PARA ACESSO SEM FIO EM FAIXA LARGA OPERANDO EM AMBIENTES ABERTOS EM FREQÜÊNCIAS ENTRE 10 E 66 GHZ / PLANNING OF OUTDOOR BROADBAND FIXED WIRELESS ACCESS SYSTEMS OPERATING AT 10-66 GHZ BAND
The development of outdoor fixed broadband wireless access (BWA) systems operating at 10-66 GHz frequency requires a carefully planning in order to maximizing the use of the bandwidth, maximizing network capacity, assuring minimum requirements of availability and minimizing costs in an environment and in a frequency band where the propagation of electromagne
Publicado em: 2006
-
11. The role of fine particulate matter composition of PM2,5 and ROFA in the cell mutagenic potential and toxicity: a vegetable and animal bioassay study / Efeito da composição do material particulado fino, PM2,5 e residual oil fly ash (ROFA), como determinante do potencial mutagênico e tóxico celular: um estudo em bioensaios vegetais e animais
The association between atmospheric particulate matter (PM) and adverse human health effects have been consistently reported in epidemiological and experimental studies however, the ability to define the most important components involved in PM toxicity is hindered by its complex composition. In the present study we decided to further explore the effects of
Publicado em: 2006
-
12. ESTUDO RADIOMETEOROLÓGICO DA REGIÃO AMAZÔNICA / RADIOMETEOROLOGICAL STUDY IN THE AMAZON REGION
A região amazônica é uma extensa área de grande importância política e estratégica para o futuro do Brasil. Por suas características, tais como, a distâncias entre cidades e vilarejos, a impenetrabilidade da floresta, a dificuldade de construção de rodovias, etc. é imediato constatar a importância primordial de ser atendida por sistemas de telec
Publicado em: 2006