Results 111 to 120 of about 661,760 (254)

Systematic Approach for Carbonate and Volcanic Facies Classification Based on Textural and Structural Variations Observed in Brazilian Pre‐Salt Acoustic Image Logs

open access: yesJournal of Petroleum Geology, EarlyView.
ABSTRACT Facies characterization in carbonate reservoirs remains challenging due to their pronounced textural and structural heterogeneity. Variations in grain packing, cementation, and diagenetic overprints produce contrasting acoustic responses in borehole image logs, often limiting the reproducibility of facies interpretation.
Lenita de Souza Fioriti   +2 more
wiley   +1 more source

Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta   +9 more
wiley   +1 more source

A INCLUSÃO DO PERSONAGEM NEGRO EM LIVROS DIDÁTICOS DE GEOGRAFIA: QUANDO A DIFERENÇA É BANALIZADA?

open access: yesGeografia (Londrina), 2014
Este artigo analisa o modo como os personagens negros são incluídos em livros didáticos brasileiros, a partir da análise de personagens negros e brancos presentes em ilustrações de livros didáticos de Geografia para o 2º ano do ensino fundamental ...
Wellington Oliveira dos Santos
doaj   +1 more source

Bryophytes from some Caatinga areas in the state of Bahia (Brazil) [PDF]

open access: yes, 1998
The caatinga is a deciduous and xerophilous vegetation that covers large areas in Brazil. An irregular rainfall with a marked dry period is a characteristic feature.
Albertos, Belén   +2 more
core  

Interpersonal Connections and Career Mobility in Bureaucratic Labor Markets: Evidence From Brazil

open access: yesPublic Administration Review, EarlyView.
ABSTRACT Interpersonal networks are pervasive in state bureaucracies around the world. To what extent do they explain bureaucratic career trajectories? And are they driven more by political patronage and connections to influential bosses, or by information‐sharing and trust‐building among peers?
Danilo Cardoso   +6 more
wiley   +1 more source

Primatas do Parque Nacional do Jamanxim/PA: riqueza, distribuição e ameaças

open access: yesBiodiversidade Brasileira, 2018
O Parque Nacional do Jamanxim (PARNA do Jamanxim) está localizado no sudoeste do Pará e propicia a conectividade entre as unidades de conservação (UCs) da Terra do Meio e da bacia do Rio Tapajós, no interflúvio Tapajós-Xingu, região que abriga ...
Gerson Buss   +7 more
doaj   +1 more source

The Goldilocks Effect: How the “Just Right” Writing Styles of Global Corporate Responsibility Frameworks Shapes Their Use by Businesses

open access: yesRegulation &Governance, EarlyView.
ABSTRACT The 21st century has witnessed a surge in the number of global corporate responsibility (GCR) frameworks issued by international organizations (IOs). Our study investigates whether and to what extent these frameworks shape businesses' Corporate Social Responsibility (CSR) communications.
Adam William Chalmers   +1 more
wiley   +1 more source

A Journey Between Science and the Arts: Templates for the Depiction of the Pineapple (Sixteenth to Eighteenth Centuries)

open access: yesRenaissance Studies, EarlyView.
ABSTRACT Native to America, the pineapple—Ananas comosus (L.) Merr.—delighted the Europeans who came across it. The fruit was mentioned by the voyagers and missionaries who observed and tasted it in the Americas and, from the 1500s onwards, infused reports, chronicles and natural history treatises with colour and flavour.
Teresa Nobre de Carvalho
wiley   +1 more source

Validação da metodologia de extração simultânea de cátions trocáveis em solos brasileiros [PDF]

open access: yes, 2015
Foi validada em laboratório a metodologia de extração simultânea de cinco cátions trocáveis (Al, Ca, Mg, K e Na) em solos brasileiros, utilizando-se amostras coletadas em áreas de cultivo de fruteiras irrigadas da região Nordeste do Brasil e na área ...
BOEIRA, R. C.   +3 more
core  

Paracoccidioidomycosis in Brazil: 25‐Year Nationwide Trends in Mortality, Hospitalisations and In‐Hospital Deaths of a Neglected Systemic Mycosis

open access: yesTropical Medicine &International Health, EarlyView.
ABSTRACT Objective To analyse mortality, hospitalisations and in‐hospital mortality related to paracoccidioidomycosis (PCM) in Brazil, 2000–2024, from a spatio‐temporal and social inequalities perspective. Methods We conducted a mixed ecological study using death certificates from the Mortality Information System and hospital admissions from the ...
Anderson Fuentes Ferreira   +9 more
wiley   +1 more source

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