Results 51 to 60 of about 290,254 (223)

ECONOMIA DE PERNAMBUCO: PERDA DE DINAMISMO E A NECESSIDADE DE BUSCAR CAMINHOS POSSÍVEIS

open access: yesCadernos de Estudos Sociais, 1993
No contexto da tendência de gradativo isolamento e perda de importância relativa da socio-economia de Pernambuco, esse artigo investiga os principais fatores associados a essa deterioração, num esforço de entendimento que busca também a identificação dos
Frederico Katz, J. Policarpo Lima
doaj  

PERFIL CONSTRUTIVO DAS FORTIFICAÇÕES PORTUGUESAS DA CAPITANIA DE PERNAMBUCO APÓS 1654: Após a capitulação holandesa

open access: yesClio Arqueológica, 2020
A pesquisa da qual se origina este artigo, o último de uma série de três dos quais dois já se publicaram aqui na Revista Clio Arqueológica, integra um trabalho abrangente que estudou as fortificações construídas na Capitania de Pernambuco entre os ...
Manuela Xavier Gomes de Matos   +1 more
doaj   +1 more source

Ice in the Tropics: the Export of ‘Crystal Blocks of Yankee Coldness’ to India and Brazil [PDF]

open access: yes, 2011
The Boston natural ice trade thrived during 1830-70 based upon Frederic Tudor’s idea of combining two useless products – natural winter ice in New England ponds and sawdust from Maine’s lumber mills. Tudor ice was exported extensively to the tropics from
Herold, Marc W.
core   +2 more sources

Marine nematode taxonomy in the DNA age: the present and future of molecular tools to access their biodiversity [PDF]

open access: yes, 2010
Molecular taxonomy is one of the most promising yet challenging fields of biology. Molecular markers such as nuclear and mitochondrial genes are being used in a variety of studies surveying marine nematode taxa.
da Silva, Maria Cristina   +7 more
core   +2 more sources

Does the Application Flow Rate of Nutrient Solutions Prepared in Brackish Water Affect Coriander Production?

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Flow rates for applying nutrient solutions in hydroponic systems are empirically known, yet uncertainties remain regarding whether brackish water affects the optimal flow rate and, consequently, biomass production and allocation. This study evaluated whether variations in application flow rate affect coriander biomass when brackish water is ...
Raphaela Revorêdo Bezerra   +7 more
wiley   +1 more source

Safety Assessment and Hypoglycemic Effect of Moringa oleifera Lam. Seed Lectin (WSMoL) in Alloxan‐Induced Diabetic Mice

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Moringa oleifera Lam. seeds contain WSMoL, a lectin previously studied for toxicity and pharmacological effects. In this study, we investigated WSMoL (10, 25, or 50 mg/kg i.p.) for acute and 14‐day repeated‐dose toxicity, as well as genotoxicity, in Swiss mice.
Alícia Natalie Silva dos Santos   +10 more
wiley   +1 more source

Fourier Eigenfunctions, Uncertainty Gabor Principle and Isoresolution Wavelets [PDF]

open access: yes, 2015
Shape-invariant signals under Fourier transform are investigated leading to a class of eigenfunctions for the Fourier operator. The classical uncertainty Gabor-Heisenberg principle is revisited and the concept of isoresolution in joint time-frequency ...
H. M. De Oliveira   +4 more
core   +1 more source

Object-oriented Programming Laws for Annotated Java Programs

open access: yes, 2010
Object-oriented programming laws have been proposed in the context of languages that are not combined with a behavioral interface specification language (BISL).
A. Banerjee   +27 more
core   +2 more sources

Human Health Risk Assessment From Exposure to Toxic Metals in Soils and Leafy Vegetables in Smallholder Farms of Northeastern Brazil

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT This study assessed human health risks associated with exposure to potentially toxic metals (PTMs) in soils and leafy vegetables cultivated in smallholder agricultural systems in Northeastern Brazil. Soil and vegetable samples were collected from 18 agricultural areas and analyzed for cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), nickel
Fernando Ferreira da Cunha Filho   +5 more
wiley   +1 more source

Bias Correction and Modified Profile Likelihood under the Wishart Complex Distribution

open access: yes, 2014
This paper proposes improved methods for the maximum likelihood (ML) estimation of the equivalent number of looks $L$. This parameter has a meaningful interpretation in the context of polarimetric synthetic aperture radar (PolSAR) images.
Cintra, Renato J.   +2 more
core   +1 more source

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