Results 41 to 50 of about 404 (166)

A FEIRA LIVRE DE GUARANÉSIA-MG SOB A ÓTICA DO CIRCUITO INFERIOR DA ECONOMIA

open access: yesRevista Contexto Geográfico, 2020
O presente artigo busca compreender a dinâmica econômica da feira livre do município de Guaranésia-MG, que é uma das manifestações no Espaço geográfico do circuito inferior da economia elaborado por Milton Santos, objetiva-se com isso demonstrar sucintamente como o circuito inferior da economia urbana ocorre nesse município e alguns de seus elementos ...
Thiago Silva Forte   +1 more
openaire   +2 more sources

Longevity and Growth of the Crabs Callinectes sapidus and Callinectes rathbunae (Decapoda: Portunidae) in Paraíso Tabasco Mexico

open access: yesActa Zoologica, EarlyView.
ABSTRACT Individual growth models are important in fisheries of natural populations and can be incorporated in production models to estimate their maximum sustainable yield. Blue crab species, Callinectes sapidus and Callinectes rathbunae were obtained in the Mecoacán lagoon, Paraíso, Tabasco Mexico by “nasa” and “yahual” nets. Biometric values such as
Candelario Jiménez‐Olivares   +5 more
wiley   +1 more source

Novel TEM Microscopy and Electron Diffraction Techniques to Characterize Cultural Heritage Materials: From Ancient Greek Artefacts to Maya Mural Paintings

open access: yesScanning, Volume 2019, Issue 1, 2019., 2019
To understand in‐depth material properties, manufacturing, and conservation in cultural heritage artefacts, there is a strong need for advanced characterization tools that enable analysis down to the nanometric scale. Transmission electron microscopy (TEM) and electron diffraction (ED) techniques, like 3D precession electron diffraction tomography and ...
Stavros Nicolopoulos   +9 more
wiley   +1 more source

Statistically Coherent Calibration of X‐Ray Fluorescence Spectrometry for Major Elements in Rocks and Minerals

open access: yesJournal of Spectroscopy, Volume 2018, Issue 1, 2018., 2018
We applied both the ordinary linear regression (OLR) and the new uncertainty weighted linear regression (UWLR) models for the calibration and comparison of a XRF machine through 59 geochemical reference materials (GRMs) and a procedure blank sample.
Surendra P. Verma   +12 more
wiley   +1 more source

Modelling amphibian road crossing points in a dynamic environment

open access: yesJournal of Applied Ecology, Volume 62, Issue 6, Page 1449-1462, June 2025.
Not considering the spatiotemporal variability of the environment can lead to a loss of crucial information when modelling the localities at which the predicted flows of animals intersect the highway. The dynamics of road‐affected ecosystems can be taken into account using freely available remote sensing data.
Martino Flego   +6 more
wiley   +1 more source

Preliminary study on the synthesis and high‒resolution NMR analysis of Naproxen and Ibuprofen esters

open access: yesJournal of Spectroscopy, Volume 18, Issue 3, Page 485-500, 2004., 2004
The synthesis and NMR analysis of several diastereoisomeric Naproxyl–Naproxenate, Naproxyl–Ibuprofenate and Ibuprofyl–Naproxenate esters are reported. The NMR high resolution spectra run in presence of the chiral shift reagents and variable temperature analysis were done to study the dynamic properties of these esters.
Christopher K. Jankowski   +8 more
wiley   +1 more source

O circuito inferior da economia urbana e a expansão do circuito superior em Natal-RN/Brasil

open access: yesPara Onde!?, 2012
Este trabalho tem como objetivo analisar as conseqüências da expansão dos vetores modernizantes da globalização no contexto do circuito inferior da economia urbana de Natal, capital do estado do Rio Grande do Norte. Como procedimento de pesquisa realizou-se uma revisão teórica e conceitual sobre o assunto, bem como foram realizadas entrevistas com ...
openaire   +3 more sources

Wide‐Bandgap Perovskite‐Inspired Materials: Defect‐Driven Challenges for High‐Performance Optoelectronics

open access: yesAdvanced Functional Materials, Volume 34, Issue 50, December 9, 2024.
Wide‐bandgap and air‐stable perovskite‐inspired materials (PIMs) are low‐toxicity alternatives to lead‐halide perovskites (LHPs). However, the optoelectronic performance of PIMs is far inferior to that of the LHPs, particularly due to a high defect density.
G. Krishnamurthy Grandhi   +9 more
wiley   +1 more source

The lifting property for classes of mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 23, Issue 10, Page 717-722, 2000., 2000
The lifting property of continua for classes of mappings is defined. It is shown that the property is preserved under the inverse limit operation. The results, when applied to the class of confluent mappings, exhibit conditions under which the induced mapping between hyperspaces is confluent. This generalizes previous results in this topic.
Janusz J. Charatonik
wiley   +1 more source

Finanças, consumo e circuitos da economia urbana na cidade de São Paulo

open access: yesCaderno CRH
Partindo do novo papel financeiro e organizacional da cidade de São Paulo, buscamos compreender as interferências do circuito superior sobre o circuito inferior. Ambos os circuitos diferenciam-se pelos graus de capital, tecnologia e organização.
María Laura Silveira
doaj   +1 more source

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