Results 11 to 20 of about 407,725 (299)

Influence of aerosol acidity on the chemical composition of secondary organic aerosol from β-caryophyllene [PDF]

, 2010
The secondary organic aerosol (SOA) yield of β-caryophyllene photooxidation is enhanced by aerosol acidity. In the present study, the influence of aerosol acidity on the chemical composition of β-caryophyllene SOA is investigated using ultra performance ...
Chan, A. W. H., Chan, M. N., Edgerton, E. S., Edney, E. O., Jaoui, M., Kleindienst, T. E., Knipping, E. M., Lewandowski, M., Offenberg, J. H., Schilling, K., Seinfeld, J. H., Shaw, S. L., Surratt, J. D., Tanner, R. L., Zheng, M.   +14 more
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Aluminum toxicity reduces the nutritional efficiency of macronutrients and micronutrients in sugarcane seedlings [PDF]

Ciência e Agrotecnologia
Although the effects of aluminum on the content and accumulation of mineral nutrients in crops have been studied, but nothing is known about its effect on the nutritional efficiency of sugarcane.
Carolina Eggers Borges, Jairo Osvaldo Cazetta, Francisco Bruno Ferreira de Sousa, Kamilla Silva Oliveira   +3 more
doaj   +2 more sources

Detection of internal quality in kiwi with time-domain diffuse reflectance spectroscopy [PDF]

, 2004
Time-domain diffuse reflectance spectroscopy (TRS), a medical sensing technique, was used to evaluate internal kiwi fruit quality. The application of this pulsed laser spectroscopic technique was studied as a new, possible non-destructive, method to ...
Cubeddu, Rinaldo, Dover, Colin, Johnson, David, Pifferi, Antonio, Ruiz-Altisent, Margarita, Taroni, Paola, Torricelli, Alessandro, Valentini, Gianluca, Valero Ubierna, Constantino   +8 more
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Regression Analysis of Orthogonal, Cylindrical and Multivariable Color Parameters for Colorimetric Surface pH Measurement of Materials

Molecules, 2021
The surface pH is a critical factor in the quality and longevity of materials and products. Traditional fast colorimetric pH detection-based tests such as water quality control or pregnancy tests, when results are determined by the naked eye, cannot ...
Katarína Vizárová, Izabela Vajová, Naďa Krivoňáková, Radko Tiňo, Zdenko Takáč, Štefan Vodný, Svetozár Katuščák   +6 more
doaj   +1 more source

Gas phase carbon acidity and correlations with aqueous pK~a~ values: A comparison of B3LYP/6-311++G(d,p), Gaussian-4 (G4), and experimental approaches [PDF]

, 2010
Gas phase standard state (298.15 K, 1 atm) calculations were conducted at the B3LYP/6-311++G(d,p) density functional and the Gaussian-4 (G4) composite method levels of theory to estimate the acidity of various carbon acids.
Kaya Forest, Sierra Rayne
core   +2 more sources

High-Temperature Synthesis of Ordered Mesoporous Aluminosilicates from ZSM-5 Nanoseeds with Improved Acidic Properties

Nanomaterials, 2014
Ordered mesoporous SBA-15 analogs with different Si/Al ratios were successfully prepared in a two-step process from self-assembly of ZSM-5 nanoseeds at high temperature in mildly acidic media (473 K, pH 3.5).
Xuan Hoan Vu, Reinhard Eckelt, Udo Armbruster, Andreas Martin   +3 more
doaj   +1 more source

Changes in Grape Maturity Induced by Spraying Ethanol [PDF]

, 2004
Three different ethanol solutions were sprayed onto Cabernet Sauvignon (Vitis vinifera L.) clusters during the ripening period: 2.5, 5 and 10% by volume in water. Controls were sprayed with water alone. Three different times of spraying were also tested:
Chervin, Christian, El-Kereamy, Ashraf, Garin, Pascal, Guichaoua, L., Renouf, Vincent, Rohmer, C., Roques, A., Roustan, Jean-Paul, Sanvoisin, M., Savocchia, Sandra, Van Heeswijck, R.   +10 more
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The gastric acid pocket is attenuated in H. pylori infected subjects [PDF]

, 2016
Objective Gastric acid secretory capacity in different anatomical regions, including the postprandial acid pocket, was assessed in Helicobacter pylori positive and negative volunteers in a Western population. Design We studied 31 H.
Ballantyne, Stuart A., Derakhshan, Mohammad H., Going, James J., McColl, Kenneth E.L., Mitchell, David R., Orange, Clare, Wirz, Angela A.   +6 more
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Heterogeneity and proliferation of invasive cancer subclones in game theory models of the Warburg effect [PDF]

, 2015
OBJECTIVES: The Warburg effect, the switch from aerobic energy production to anaerobic glycolysis, promotes tumour proliferation and motility by inducing acidification of the tumour microenvironment.
Archetti, Archetti, Archetti, Archetti, Archetti, Archetti, Bach, Basanta, Basanta, Basanta, Bergers, Bhujwalla, Buchler, Casciari, Feron, Gambhir, Gatenby, Gatenby, Gatenby, Gatenby, Gillies, Griffiths, Hanahan, He, Ibrahim Hashim, Ibrahim Hashim, Kelloff, Kianercy, Kunkel, Lardner, Martin, Martin, Maynard Smith, Mochiki, Park, Patel, Pauwels, Perc, Postovit, Postovit, Rajendran, Robey, Rohzin, Rubin, Schornack, Semenza, Shi, Silva, Smallbone, Smallbone, Sonveaux, Tomlinson, Tomlinson, Warburg, Williams, Wojtkowiak   +55 more
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Biochar Effect on Maize Yield and Soil Characteristics in Five Conservation Farming Sites in Zambia

Agronomy, 2013
Biochar addition to agricultural soils can improve soil fertility, with the added bonus of climate change mitigation through carbon sequestration. Conservation farming (CF) is precision farming, often combining minimum tillage, crop rotation and residue ...
Alfred Obia, Jan Mulder, Sarah E. Hale, Gijs D. Breedveld, David W. Rutherford, Magnus Sparrevik, Vanja Alling, Vegard Martinsen, Victor Shitumbanuma, Gerard Cornelissen   +9 more
doaj   +1 more source