Results 31 to 40 of about 4,223 (201)
A New Biflavonoid fromSchinopsis brasiliensis(Anacardiaceae)
Phytochemical investigation of the MeOH extract of Schinopsis brasiliensis Engl. stems led to the isolation of the new biflavanone (2R*,3R*,2''R*,3''R*)-7-hydroxy-4'-methoxy-flavanone- (3→3'')-3''',7''-dihydroxy-4'''-methoxy-flavanone and 4,2',4'-trihydroxychalcone-(3→O→4'')- 2''',4'''-dihydroxychalcone, whereas methyl gallate, gallic acid, (6R,9R ...
Cardoso, Manuela P. +6 more
openaire +3 more sources
Molluscicidal Activity of Extracts and Fractions From Hagenia abyssinica, Rosa abyssinica, and Cucumis ficifolius Against Biomphalaria and Bulinus Snails. [PDF]
Background: Schistosomiasis continues to be a major public health concern in Ethiopia. Eliminating the intermediate host snails is an effective and cost‐efficient strategy for preventing and controlling schistosomiasis transmission. However, chemical molluscicides have limitations due to their toxicity to nontarget aquatic organisms, environmental ...
Basha H +6 more
europepmc +2 more sources
Reduction of the formaldehyde content in leathers treated with formaldehyde resins by means of plant polyphenols [PDF]
Formaldehyde has applications in many industrial processes, including synthesis of resins and syntans to be used in the retanning process of leather. When resins are employed, they can hydrolyse, releasing formaldehyde.
Cuadros Domènech, Sara +3 more
core +2 more sources
O objetivo desta pesquisa foi avaliar a resistência de nove madeiras de ocorrência no semi-árido brasileiro a fungos de podridão-mole, em condições de laboratório. As madeiras estudadas foram algaroba (Prosopis juliflora), angico (Anadenanthera colubrina
Juarez Benigno Paes +2 more
doaj +1 more source
Objetivou-se avaliar a resistência natural de nove madeiras do semi-árido brasileiro a fungos xilófagos, em condições de laboratório. As madeiras estudadas foram a algaroba (Prosopis juliflora), o angico (Anadenanthera macrocarpa), a aroeira ...
Juarez Benigno Paes +2 more
doaj +1 more source
Nest structure and notes on the social behavior of Augochlora amphitrite (Schrottky) (Hymenoptera, Halictidae) [PDF]
The nesting biology of Augochlora (Augochlora) amphitrite (Schrottky) in a natural reserve in the Province of Buenos Aires, Argentina, is described. The species nests in decaying wood.
Dalmazzo, Maria de Los Milagros +1 more
core +3 more sources
Abstract It will be necessary to make efficient use of our resources if our society is to be converted into a bio‐based economy. Every year large side streams of bark are produced in sawmills and pulp mills. In addition to utilizing the bark for heat and electricity production, as happens today, high‐value chemical components could be extracted prior ...
Karin Carlqvist +8 more
wiley +1 more source
Effects of condensed tannins on goats experimentally infected with Haemonchus contortus. [PDF]
Although the use of tanniferous plants or condensed tannins as an alternative to anthelmintics to control gastrointestinal nematodes has been largely documented in sheep, studies remain scarce in goats.
C., GRISEZ +5 more
core +1 more source
Abstract Fungal physical, chemical and aesthetical deterioration can occur by microbial biofilms adhere to the surface, leading to alterations on the paints integrity. The sol–gel method affords various merits and added with biocides can be used to control paint films biodeterioration.
Erasmo Gámez-Espinosa +3 more
openaire +3 more sources
A gestão dos recursos naturais de maneira responsável é, sem dúvida, um dos maiores desafios de gestão ambiental. Para isso, métodos de interpolação para geração de Modelos Digitais de Elevação (MDE) têm sido cada vez mais usados, objetivando um melhor e
Pedro Luiz Teixeira Camargo +4 more
doaj +1 more source

