Results 41 to 50 of about 5,633 (213)

Circuitos de la economía urbana en la ciudad de Buenos Aires: el comercio étnico de la colectividad boliviana en el barrio de Liniers [PDF]

open access: yesEstudios Socioterritoriales: Revista de Geografía, 2012
Las divisiones territoriales del trabajo coexistentes en las ciudades pueden ser estudiadas como un circuito superior y un circuito inferior de la economía.
Mauro Escobar Basavilbaso   +1 more
doaj  

Prevalência e fatores de risco de leptospirose bovina no Estado do Maranhão

open access: yesPesquisa Veterinária Brasileira, 2012
Foram investigados a prevalência e os fatores de risco da leptospirose bovina no Estado do Maranhão. O Estado foi dividido em quatro circuitos amostrais com base em parâmetros de produção distintos que variam conforme os diferentes sistemas de produção ...
Felipe J. Silva   +6 more
doaj   +1 more source

Da Vinci's mischief: xylem conduits in the stems of woody plants do not furcate

open access: yesNew Phytologist, Volume 250, Issue 5, Page 3001-3013, June 2026.
Summary The hydraulic architecture of plants is often modeled as a ‘furcating’ network, in which xylem conduits proliferate in number toward the stem apex, analogous to animal circulatory systems. Yet whether furcation actually occurs within woody stems remains untested, despite major implications for carbon costs and hydraulic efficiency.
Gilberto Alemán‐Sancheschúlz   +4 more
wiley   +1 more source

Circuito RL Série [PDF]

open access: yes, 2011
Noções básicas de eletricidadeO vídeo demonstra o comportamento de um circuito RL (resistor - indutor) série, utilizando um gerador de onda senoidal ligado a um circuito RL série, desta maneira será possível verificar duas formas de ondas senoidal ...
Alberto Favarin Murari, Carlos   +1 more
core   +2 more sources

From living to fossil: ancestral state reconstruction of leaf architecture in extant Lauraceae and its relevance for the fossil record

open access: yesPalaeontology, Volume 69, Issue 3, 2026.
Abstract Lauraceae are a tropical–subtropical angiosperm family that exhibit significant diversity and a rich fossil record, primarily of leaves found worldwide from the Cretaceous to the present. However, the taxonomic placement of many fossil leaves remains uncertain because of morphological convergence and limited variation in leaf characters among ...
Marco A. Rubalcava‐Knoth   +3 more
wiley   +1 more source

Consideraciones sobre el circuito superior de la economía urbana: los bancos y el acceso a los productos financieros en Argentina [PDF]

open access: yes, 2015
Fil: Parserisas, Derlis Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Instituto de Geografía, Historia y Ciencias Sociales. Universidad Nacional del Centro de la Provincia de Buenos Aires.
Parserisas, Derlis Daniela
openaire   +2 more sources

Circuito RL Série [PDF]

open access: yes, 2016
Noções básicas de eletricidadeO vídeo demonstra o comportamento de um circuito RL (resistor - indutor) série, utilizando um gerador de onda senoidal ligado a um circuito RL série, desta maneira será possível verificar duas formas de ondas senoidal ...
Alberto Favarin Murari, Carlos   +1 more
core   +2 more sources

In Vitro and In Vivo Antifungal Activity of Clove (Eugenia caryophyllata) and Pepper (Piper nigrum L.) Essential Oils and Functional Extracts Against Fusarium oxysporum and Aspergillus niger in Tomato (Solanum lycopersicum L.)

open access: yesInternational Journal of Microbiology, 2020
In this study, hydrodistillation was used to obtain essential oils (EOs) from pepper (Piper nigrum L.) and clove (Eugenia caryophyllata) and co-hydrodistillation (addition of fatty acid ethyl esters as extraction co-solvents) was used to obtain ...
Laila Muñoz Castellanos   +6 more
doaj   +1 more source

Total Synthesis of the Cyanobacterial Alkaloid Nostodione A

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 2, January 16, 2026.
The total synthesis of the alkaloid nostodione A is successfully achieved utilizing 3,4‐dihydrocyclopenta[b]indole‐1,2‐dione as a key intermediate. The sensitive benzylidene moiety is introduced via a Knoevenagel condensation with p‐hydroxybenzaldehyde.
Oscar F. Casadiego‐Díaz   +3 more
wiley   +1 more source

Las franquicias de comercialización como manifestación del circuito superior: el capital, una variable explicativa

open access: yes, 2018
Fil: Hiese, Maia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Instituto de Geografía, Historia y Ciencias Sociales. Universidad Nacional del Centro de la Provincia de Buenos Aires.
Di Nucci, Josefina Inés, Hiese, Maia
openaire   +2 more sources

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