Results 41 to 50 of about 14,530 (149)

Análise multivariada de Argissolos da faixa atlântica brasileira Multivariate analysis of Argisols of the Brazilian Atlantic coast

open access: yesRevista Brasileira de Ciência do Solo, 2008
A faixa atlântica brasileira possui extrema diversidade ambiental, onde é expressiva a ocorrência de Argissolos, descritos e identifcados em diversos estudos, sem que tenham sido exauridas as possibilidades de interpretações.
Waldir de Carvalho Junior   +3 more
doaj   +1 more source

From shake flasks to a bench‐scale bioreactor: scaling up exopolysaccharide production in fed‐batch cultivation of Ensifer meliloti SEMIA 135

open access: yesJournal of Chemical Technology &Biotechnology, Volume 100, Issue 9, Page 1818-1830, September 2025.
Abstract BACKGROUND This study investigates the production scale‐up of exopolysaccharide (EPS) by Ensifer meliloti SEMIA 135 from shake flasks to a 5 L bench‐scale fed‐batch bioreactor. Soybean molasses was the cost‐effective nutrient source. The primary aim was to improve conditions for maximizing EPS yield and minimizing production costs.
Rui dos Santos Ferreira Filho   +2 more
wiley   +1 more source

Análise fractal de textura usando um operador de Hurst em uma imagem TM-Landsat-5. [PDF]

open access: yes, 2014
Análise de uma imagem de transformação de textura a partir de uma imagem TM/Landsat-5 no município de Viçosa (MG) com a utilização de um operador de Hurst com uma amplitude de 7 ...
GRIFFITH, J. J.   +3 more
core  

Systematics of the Enigmatic Neotropical Rodent Genus Microakodontomys (Cricetidae: Sigmodontinae): New Evidence Supporting Its Distinctiveness and Endangered Status

open access: yesZoologica Scripta, Volume 54, Issue 5, Page 587-600, September 2025.
ABSTRACT The diversification of Neotropical sigmodontine rodents represents one of the most remarkable evolutionary events among mammals, encompassing numerous endemic, rare, and endangered genera and species. One of the most emblematic examples is Microakodontomys transitorius Hershkovitz 1993, originally described from a single specimen based on ...
Marcelo Weksler   +4 more
wiley   +1 more source

Caracterização termogravimétrica e espectroscópica das propriedades ácidas da zeólita ZSM-22 Thermogravimetric and spectroscopic characterization of acidic properties of ZSM-22 zeolite

open access: yesCerâmica, 2010
A acidez da estrutura da zeólita ZSM-22 foi determinada por análise térmica. A energia de ativação, calculada pelo método de Ozawa, envolveu uma energia de termodecomposição de 18,44 kJ.mol-1. O valor do fator pré-exponencial A foi de 2,2746.
A. R. Loiola   +4 more
doaj   +1 more source

Guia de excursão pedológica do XXX Congresso Brasileiro de Ciência do Solo: solos da Zona da Mata de Pernambuco [PDF]

open access: yes, 2012
bitstream/CNPS-2010/14872/1/doc72-2005-guia-excursao-pedologicaxxx ...
ARAUJO FILHO, J. C. de   +3 more
core   +2 more sources

Stochastic Dynamics of Gross Soil Nitrogen Transformations in Amazon Forests—High Local Variation but Lack of Basin‐Wide Patterns

open access: yesGlobal Biogeochemical Cycles, Volume 39, Issue 8, August 2025.
Abstract Tropical forests play a critical role in global climate regulation by taking up and storing significant amounts of carbon. Soil nitrogen (N) dynamics is the key to understanding forest productivity. However, we have only a very rudimentary understanding of in situ soil N transformations in the Amazon Basin, the largest intact tropical forest ...
T. Rütting   +2 more
wiley   +1 more source

Influência da temperatura de formação do íon de Keggin no processo de pilarização de esmectitas

open access: yesEclética Química, 2018
As amostras de esmectita do estado do Pará, Amazônia, Brasil foram caracterizados utilizando XRD, FTIR e análise textural por curvas isotérmicas adsorpition-desorption nitrogênio. Na produção das argilas pilarizadas foi usado o íon Al 13 (o íon de keggin)
D. L. Guerra   +4 more
doaj   +1 more source

Leaf Spot and Fruit Rot on Achachairu: Novel Diseases Caused by Lasiodiplodia theobromae

open access: yesJournal of Phytopathology, Volume 173, Issue 3, May/June 2025.
ABSTRACT The achachairu (Garcinia humilis) is an exotic tropical fruit native to Bolivia that has recently gained commercial popularity in Brazil. In a producing region of Pernambuco, Brazil, spots and rot symptoms were observed on the leaves and fruit of G. humilis.
Kevison Romulo da Silva França   +6 more
wiley   +1 more source

Okara, um sub-produto da indústria de leite de soja, como fonte de proteína não cárnea em hambúrguer bovino com reduzido teor de gordura [PDF]

open access: yes, 2013
Okara is a by-product generated during the manufacture of soymilk and tofu. Wet okara was added to beef burgers at 0%, 20%, and 25%. The effects of okara on certain physicochemical, textural, and sensory properties of reduced fat beef burgers were ...
Contreras-castillo, Carmen Josefina   +4 more
core   +4 more sources

Home - About - Disclaimer - Privacy