Results 21 to 30 of about 615,595 (70)

Environmentally Benign Bifunctional Solid Acid and Base Catalysts [PDF]

, 2014
Solid bifunctional acid–base catalysts were prepared in two ways on an amorphous silica support: (1) by grafting mercaptopropyl units (followed by oxidation to propylsulfonic acid) and aminopropyl groups to the silica surface (NH2–SiO2–SO3H), and (2) by ...
Shiju, N.R., Shiju, N. Raveendran, Elmekawy, A., D. Robert Brown, Rothenberg, Gadi, Brown, D.R., Ahmed A. Elmekawy, N. Raveendran Shiju, Rothenberg, G., Gadi Rothenberg, Elmekawy, Ahmed A.   +10 more
core   +1 more source

Docosahexaenoic acid induces an anti-inflammatory profile in lipopolysaccharide-stimulated human THP-1 macrophages more effectively than eicosapentaenoic acid

, 2007
A number of studies have investigated the effects of fish oil on the production of pro-inflammatory cytokines using peripheral blood mononuclear cell models.
Mullen, Anne C, Loscher, Christine E, Weldon, Sinéad M, Roche, Helen M, Hurley, Lisa A   +4 more
core   +1 more source

Effects of induced subacute ruminal acidosis on milk fat content and milk fatty acid profile [PDF]

, 2008
Two lactating dairy cows fitted with a rumen cannula received successively diets containing 0%, 20%, 34% and again 0% of wheat on a dry matter basis. After 5, 10 and 11 days, ruminal pH was measured between 8:00 and 16:00 hours, and milk was analysed for
Troegeler-Meynadier, Annabelle, Videau, Yannick, Enjalbert, Francis, Nicot, Marie-Claude   +3 more
core   +1 more source

Stereoselectivity in the amination of chiral cyclohex-3-en-1-one ketals

, 1997
Optically active cyclohex-3-en-1-one ketals by photolysis of N(3)CO(2)Et or N3C(OEt)NMs or by CaO induced alpha-elimination of NsONHCO(2)Et give diastereomeric aziridines (up to 72% yields, up to 60% d.e.).
PELLACANI, Lucio, Giuseppe Luna, FIORAVANTI, Stefania, TARDELLA, Paolo Antonio   +3 more
core   +1 more source

Electrochemical oxidation of oxalic acid and hydrazinium nitrate on platinum in nitric acid media [PDF]

, 2012
Several studies in the literature have investigated the electrochemical effects of oxalic acid and hydrazine on various materials in neutral (pH buffered to 7), basic or weakly acidic media (pH 6).
Tzedakis, Théodore, Queffelec, Benoit, Ode, Denis, Rockombeny, L.C., Féraud, Jean-Pierre   +4 more
core   +1 more source

Betulinic acid for cancer treatment and prevention

, 2008
Betulinic acid is a natural product with a range of biological effects, for example potent antitumor activity. This anticancer property is linked to its ability to induce apoptotic cell death in cancer cells by triggering the mitochondrial pathway of ...
Simone Fulda, Fulda, Simone
core   +1 more source

Ion-exchange Resin Catalyzed Esterification of Lactic Acid with Isopropanol: a Kinetic Study [PDF]

, 2011
The kinetic behavior of esterification of lactic acid with isopropanol over an acidic cation exchange resin, Amberlyst 15, was studied under isothermal condition. Isopropyl lactate synthesized in this reaction is an important pharmaceutical intermediate.
Wanchoo , Ravinder Kumar, Thakur, Sakshi, Mamta Sharma, Sharma, Mamta, Sakshi Thakur, Ravinder K. Wanchoo, Amrit Pal Toor, Toor, Amrit Pal   +7 more
core   +1 more source

Optimization of the dilute maleic acid pretreatment of wheat straw

, 2009
Background In this study, the dilute maleic acid pretreatment of wheat straw is optimized, using pretreatment time, temperature and maleic acid concentration as design variables. A central composite design was applied to the experimental set up.
Hendrik H Beeftink, Elinor L Scott, Johan PM Sanders, Scott, E.L., Sanders, J.P.M., Kootstra, A.M.J., Sanders Johan PM, Beeftink, H.H., A Maarten J Kootstra, Scott Elinor L, Kootstra A Maarten J, Beeftink Hendrik H   +11 more
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Efekti rastvarača na elektronske apsorpcione spektre cikloheks-1-enilkarbonske i 2-metilcikloheks-1-enilkarbonske kiseline

, 2000
The ultraviolet absorption spectra of cyclohex-1-enylcarboxylic acid and 2-methylcyclohex-1-enylcarboxylic acid were determined in six protic and nine aprotic solvents in the wavelength range from 200 to 400 nm.
Ušćumlić, Gordana, Krstić, Vera V., Nikolić, Jasmina   +2 more
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Reaktivnost cikloheks-1-enilkarbonske i 2-metilcikloheks-1-enilkarbonske kiseline sa diazodifenilmetanom u aprotičnim rastvaračima

, 2000
Rate constants for the reaction of diazodiphenylmethane with cyclohex-1-enylcarboxylic acid and 2-methylcyclohex-1-enylcarboxylic acid were determined in nine aprotic solvents, as well as in seven protic solvents, at 30 ºC using the appropriate UV ...
Ušćumlić, Gordana, Krstić, Vera V., Nikolić, Jasmina   +2 more
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