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272 articles for “macro”

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Research ArticleOpen accessEvery word in the titleComparison of Carbon and Selected Macronutrients in Forest-Floor Litter of Rehabilitated and Secondary ForestsMelvin Ku Kin Kin, Japar Sidik Bujang, Osumanu Haruna Ahmed et al.Problem statement: Forest rehabilitation with human assistance by species selection and management shortens the time needed to rehabilitate degraded land as compared to natural succession. Empirical data on litter nutrient contents of tropical rain forests in Southeast Asia have been established, however it is limited to rehabilitated degraded lands. The objective of this study was to determine contents of carbon … …American Journal of Applied Sciences, Vol. 8, Issue 10 · 20 Aug 2011 · 7,744 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInfluence of Dietary Curcumin on Rumen Fermentation, Macronutrient Digestion and Nitrogen Balance in Beef CattleT. Vorlaphim, M. Phonvisay, J. Khotsakdee et al.Abstract: Problem statement: Previous studies have shown that curcumin has antibacterial activity. It was hypothesized that the feeding of curcumin to ruminants may disturb rumen function and affect macronutrient digestibility and nitrogen utilization. Approach: In an experiment with Latin-square design, beef cattle were fed rations consisting of urea-treated rice straw and concentrates without or with 0.1 or 0.2% added curcumin. … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 1 · 26 Jul 2011 · 9,157 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCytotoxicity Studies of Superparamagnetic Iron Oxide Nanoparticles in Macrophage and Liver CellsAroonsri Priprem, Pramote Mahakunakorn, Chunpen Thomas, Ian ThomasSuperparamagnetic Iron Oxide Nanoparticles (SPIONs) prepared by simplified coprecipitation were attractive as MRI contrast agents and drug carriers which could internally be manipulated under the influence of an external magnetic field and also cancer treatment due to additional hyperthermia effects. Problem statement: Macrophage and liver cells are potentially exposed to internal SPIONs, thus used for this cytotoxic tests for safety … …Current Research in Nanotechnology, Vol. 1, Issue 2 · 22 Jun 2011 · 11,629 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInteractive Effects of the Feeding of Leucaena Leaves and Curcumin on Macronutrient Digestion and Nitrogen Balance in Beef CattleC. Yuangklang, J. Khotsakdee, K. Vasupen et al.Abstract: Problem statement: The feeding of curcumin to beef cattle has been shown to increase nitrogen retention and decrease the apparent digestibility of acid detergent fiber in beef cattle. It was suggested that there could be interactions between the effects of curcumin and the composition of the ration. Approach: In this study with beef cattle, concentrates without or with curcumin … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 1 · 15 Dec 2010 · 8,071 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Impact of Macroeconomic Indicators on Agricultural Trade Balance of IranS. Yazdani, S. ShajariProblem statement: One of the main targets of Iran’s economic development plans in agricultural sector during the recent years was to augment agricultural exports and establish a positive trade balance in this sector. In this research the impact of macroeconomic indicators of Iran and its 20 trading partners on Iran’s agricultural trade balance had been investigated. Approach: The ARDL approach … …American Journal of Applied Sciences, Vol. 6, Issue 8 · 31 Aug 2009 · 6,942 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Possibilities of the Application of Feed Additives from Macroalgae in Sustainable Mineral Animal FeedingIzabela Michalak, Katarzyna Chojnacka, Peter GlavičProblem statement: The idea of the application of biological material as mineral feed additives could constitute an innovative practice that would encourage environmental sustainability. The main idea of this study was to present the advantages of macroalgae enriched with microelements when compared to inorganic salts. Approach: In order to evaluate the potential participation of macroalgae in sustainable animal feeding, it … …American Journal of Applied Sciences, Vol. 6, Issue 8 · 31 Aug 2009 · 7,794 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAssessment of Constructed Wetland Biological Integrity Using Aquatic MacroinvertebratesC. Galbrand, I. G. Lemieux, Abdel E. Ghaly et al.A surface flow constructed wetland consisting of seven cells was used to treat the leachates from a decommissioned landfill. Wetland monitoring was performed by evaluating the treatment efficiency of the landfill leachate and the wetland biological integrity of the wetland. The water quality samples were analyzed for iron, manganese, phosphorus (orthophosphate), pH, dissolved oxygen (DO), nitrogen (ammonia, nitrate, nitrite and … …OnLine Journal of Biological Sciences, Vol. 7, Issue 2 · 31 Dec 2007 · 7,417 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleBiosorption of Cr(III) by Microalgae and Macroalgae: Equilibrium of the ProcessIzabela Michalak, Agnieszka Zielinska, Katarzyna Chojnacka, Jan MatulaEquilibrium experiments of chromium(III) biosorption by microalga (Spirulina sp.) and macroalga (Pithophora varia) were investigated in this paper. Influence of the following process parameters was studied: pH, biomass concentration and temperature. The equilibrium of the process was described with Langmuir equation. The model parameters were determined at various process conditions. The best operation conditions for the process were selected: pH … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 4 · 31 Dec 2007 · 8,208 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInhibition of Cholesterol Esterification Influences Cytokine Exspression in Lypopolisaccharide-activated P388D1 MacrophagesRosa Rita Bonatesta, Francesca Sanna, Sabrina Uda et al.Several in vivo and in vitro studies have demonstrated the involvement of infectious agents in the development of atherosclerosis. However, the mechanisms by which micro-organisms induce and/or aggravate atherosclerosis, are so far unclear. Accumulation of cholesterol esters and lipid laden cell formation are hallmark of the atherogenesis, however, the possible relationship between cholesterol esterification and the signal-transducing component of LPS … …American Journal of Infectious Diseases, Vol. 3, Issue 3 · 30 Sep 2007 · 7,484 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleExpression of Toll-like Receptors (TLRs) and Nucleotide-binding Oligomerization Domain (NODs) in murine peritoneal macrophages on in vitro treatment with Thymosin α 1Shikha Tarang, Ajit SodhiThymosin α 1 (Tα1) treatment of murine peritoneal macrophages in vitro induces the expression of TLRs and Nod2 proteins. Enhanced expressions of TLR2, -4, -5, -6, -7, -8, -9 and Nod2 were observed by RT-PCR and western blotting. Expression of downstream signaling molecules - MyD88, IRAK1, TRAF6, IRF3 were also up regulated on treatment with Tα1. It was also observed … …American Journal of Immunology, Vol. 3, Issue 1 · 30 Jun 2007 · 7,154 accessesView PDFCite