Results 61 to 70 of about 13,858,822 (259)

Preferential trading in agriculture: New insights from a structural gravity analysis and machine learning

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Preferential trade agreements (PTAs) contain various non‐tariff provisions, yet identifying their trade effects remains challenging because these commitments are high‐dimensional and strongly correlated within agreements. We estimated a theory‐consistent structural gravity model with domestic flows for 26 agricultural subsectors over 1988–2017
Dongin Kim, Sandro Steinbach
wiley   +1 more source

Flora do Ceará, Brasil: Bixaceae

open access: yesRodriguésia
Resumo O estudo consistiu no levantamento florístico de Bixaceae no estado do Ceará, como parte do projeto "Flora do Ceará". Baseou-se na análise dos caracteres morfológicos de espécimes depositados nos herbários ALCB, ASE, EAC, HUEFS, HUVA, MOSS, TEPB e
Rayane de Tasso Moreira Ribeiro   +1 more
doaj   +1 more source

Una especie nueva del genero Staelia (Spermacoceae-Rubiaceae) para la flora de Brasil

open access: yesRevista de Biologia Neotropical, 2007
Uma espécie nova do gênero Staelia Cham . & S chltdl . para a flora do Brasil é de scrita e ilustrada .
Roberto M Salas, Elsa L Cabral
doaj   +1 more source

In Vivo Nb4C3Tx MXene‐Assisted Photothermal Therapy of Melanoma in Mice

open access: yesAdvanced NanoBiomed Research, EarlyView.
Nb4C3Tx MXene converts pulsed 1064 nm irradiation into localized heat, producing concentration‐ and time‐dependent melanoma cell killing in vitro and suppressing tumor growth in mice. Histology reveals extensive tumor damage, macrophage‐associated material clearance, and no detectable persistent deposits in examined visceral organs, supporting Nb4C3Tx ...
Anton Roshchupkin   +22 more
wiley   +1 more source

Flora do Ceará, Brasil: Polygonaceae

open access: yesRodriguésia
Resumo Polygonaceae tem ampla distribuição no Brasil e foi registrada em diferentes domínios fitogeográficos. Os representantes desta família são reconhecidos por apresentar folhas simples, alternas e inteiras, caules e ramos com nós e entrenós bem ...
Francisco Romário Silva Tabosa   +3 more
doaj   +1 more source

Alkali‐Catalyzed Synthesis of Acylglycerol Estolides Exclusively from Castor Oil

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
This work advances sustainable chemistry by converting renewable castor oil into high‐performance estolides via solvent‐free, low‐energy catalysis. ABSTRACT Estolides are oligomers composed of fatty acid (FA) monomers linked through secondary ester bonds located along the mid‐chain region.
Lucas Natã de Melo   +3 more
wiley   +1 more source

Flora do Ceará, Brasil: Oxalidaceae

open access: yesRodriguésia
Resumo Esse estudo objetivou o registro e a atualização da distribuição geográfica das espécies de Oxalidaceae no estado do Ceará, dando continuidade ao “Projeto Flora do Ceará”.
Maria Iracema Bezerra Loiola   +4 more
doaj   +1 more source

Considerações sobre a delimitação de Mecardonia procumbens (Mill.) Small. (Scrophulariaceae) Studies on the delimitation of Mecardonia procumbens (Mill.) Small. (Scrophulariaceae)

open access: yesActa Botânica Brasílica, 1997
No presente trabalho foram reconhecidas cinco variedades para Mecardonia procumbens (Mill.) Small (Scrophulariaceae), sendo que novas combinações são propostas.
Vinícius Castro Souza
doaj   +1 more source

Environmental and Genetic Effects on the Composition of Palm Oil From Hybrid Plant Clones of Caiaué and Oil Palm

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT The interspecific hybrids (IEH OxG) obtained from the crossing of Elaeis oleifera (Eo) and Elaeis guineensis (Eg) are resistant to some diseases that affect Eg in some regions of South America, and commercial growing in several countries has been established.
Rosemar Antoniassi   +6 more
wiley   +1 more source

Ferns and lycophytes in Brazil's semi-arid region

open access: yesRodriguésia
Little knowledge has been gathered on ferns and lycophytes occurring in the semi-arid region of Brazil known as the Caatinga, perhaps due to the widespread idea that a semi-arid climate would be incompatible with environmental demands of ferns and ...
Sergio Romero da Silva Xavier   +2 more
doaj   +1 more source

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