Results 81 to 90 of about 484,853 (304)

Ocean acidification at the crossroads I: Harmonizing unpurified and purified meta‐cresol purple spectrophotometric pHT measurements based on absorbance data

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Consistent monitoring of seawater spectrophotometric pH on the total hydrogen ion scale (pHT) has been questioned by an evolving method, with changes in parameterization and the purity of the meta‐cresol purple (mCP). Using real seawater samples, we demonstrate that spectrophotometric pHT measurements obtained with unpurified (UNPUR) and ...
Marta Álvarez   +6 more
wiley   +1 more source

Impact of COVID‐19 and Vaccination on Lower Urinary Tract Symptoms: Insights From a Prospective Cohort Study

open access: yesNeurourology and Urodynamics, EarlyView.
ABSTRACT Aims To evaluate the prevalence, clinical course, and risk factors of lower urinary tract symptoms (LUTS) in patients hospitalized with COVID‐19, and to assess associations with comorbidities, disease severity, and vaccination status. Methods We conducted a prospective cohort study of adult patients hospitalized with confirmed COVID‐19, who ...
Julia Duarte de Souza   +12 more
wiley   +1 more source

Educação a Distância : práticas, reflexões e cenários plurais

open access: yesRDBCI: Revista Digital de Biblioteconomia e Ciência da Informação, 2010
ALONSO, Kátia Morosov ; RODRIGUES, Rosângela Schwarz; BARSOBA, Joaquim Gonçalves (Orgs). Educação a Distância: práticas, reflexões e cenários plurais. Cuiabá. Central de Texto : EdUFMT, 2009. 118p.
Eliana Bahia
doaj   +1 more source

Taxonomy and diversity of Marcgraviaceae, north of the São Francisco river, northeast Brazil

open access: yesNordic Journal of Botany, EarlyView.
This study provides a comprehensive assessment of Marcgraviaceae species diversity north of the São Francisco river in northeastern Brazil, analyzing species richness and distribution patterns across 384 000 km² of phytogeographic domains. Through field collections, herbarium studies (both physical and digital), and detailed morphological analyses, we ...
Thales Carvalho   +4 more
wiley   +1 more source

Reflections on Racial Identity and the Black Movement in the United States and Brazil [PDF]

open access: yes, 2006
These reflections are based on a long history of study and involvement in the Black movement in the United States, on friendships with militants in the Brazilian Black movement, and on study of that movement.
Covin, David
core   +1 more source

The relative roles of in situ diversification and lineage dispersal underlying diversity patterns at the assemblage level

open access: yesOikos, EarlyView.
Speciation, extinction, and dispersal are the historical processes influencing the spatial distribution of lineages and strongly influence diversity patterns. Here, we apply a recently developed methodological approach to quantify the relative legacies in situ diversification history (i.e.
Arthur Vinicius Rodrigues   +2 more
wiley   +1 more source

Flora da Bahia

open access: yesSITIENTIBUS série Ciências Biológicas, 2006
O Projeto Flora da Bahia foi iniciado em 1997 nos moldes previstos pela Sociedade de Botânica do Brasil para a atualização da Flora do Brasil. É o produto de vários anos de coleta e identificação de espécimes do Estado da Bahia e reflete o esforço conjunto de várias instituições e pesquisadores. A flora será publicada nos níveis de família ou gênero(s)
Ana Maria Giulietti   +5 more
openaire   +1 more source

Nineteenth-Century Bahia\u27s Passion for British Salted Cod: From the Seas of Newfoundland to the Portuguese Shops of Salvador\u27s Cidade Baixa, 1822-1914 [PDF]

open access: yes, 2015
Dried cod has played a similar role to sugar in the international chain of commerce. It became a major traded commodity between British North America (Newfoundland, Nova Scotia Gaspe) in the nineteenth century.
Herold, Marc W.
core   +1 more source

Structural stability of plant–pollinator interactions despite seasonal abundance of long‐tongued hawkmoths

open access: yesOikos, EarlyView.
Seasonal environmental cycles affect plant–pollinator interactions by altering plant phenology. Periods of low resource availability can filter pollinators and reduce the complexity of interaction networks, but the extent to which the functional morphology of pollinators influences such filtering remains unclear.
Ugo M. Diniz   +3 more
wiley   +1 more source

Stanford oceanographic expedition 17, Galapagos Islands and vicinity, 22 February-23 March 1968: observations on birds, the Galapagos fur seal, and cetaceans [PDF]

open access: yes, 1968
1. Systematic list of birds (pp. 23-31) 2. Observations on the Galapagos fur seal, Arctocephalus australis galapagoensis Heller, 1904 (pp. 31-33) 3. Cetaceans observed (pp.
Baldridge, Alan
core  

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