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305 articles for “nitrogen”
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Research ArticleOpen accessEvery word in the titleEffects of Converting Secondary Forest to Oil Palm Plantation on Peat Soil Carbon and Nitrogen and other Soil Chemical PropertiesMakilan Muniandy, Osumanu Haruna Ahmed, Nik Muhamad Ab. Majid, Mohd Khanif YusopProblem statement: Peatlands are natural sequesters of carbon and nitrogen. Once they are disturbed the tendency to lose carbon and nitrogen to the environment is very high. This study investigated the effect of converting peat land forest into oil palm plantation on soil chemical properties with particular emphasis on carbon and nitrogen storage. Approach: Soil samples were collected randomly at … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 7,302 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleReactive Nitrogen Intermediates Production by Macrophages of Mycobacterium bovis-Infected Goats and Supplemented with Dyhidroxyvitamin D3 in vivoAurora Martinez-Romero, Jose Luis Ortega-Sanchez, Jose Ramon Hernandez-Salgado et al.Problem statement: Tuberculosis (TB) remains one of the world's major health problems. To evaluate in vivo indices of cellular sensitization, antigen-induced Reactive Nitrogen Intermediates (RNI) responses by blood mononuclear cells from Mycobacterium bovis BCG-infected goats supplemented with 1, 25 dyhidroxyvitamin D3 [1, 25-(OH)2D3]. Approach: An experimental, longitudinal and comparative study was planned. Twelve animals of goat cattle 20-to 24-month-old sannen … …American Journal of Animal and Veterinary Sciences, Vol. 4, Issue 1 · 31 Mar 2009 · 7,615 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleComparison Between Biological Treatment and Chemical Precipitation for Nitrogen Removal from Old Landfill LeachateLong Tengrui, Anas F. Al-Harbawi, He Qiang, Zhai JunThe study reports the results of a laboratory scale investigation aimed at evaluating the effectiveness of mature municipal landfill leachate treatment by a biological stage (used SBBR as a biological treatment) and Chemical precipitation (Used MAP precipitation (magnesium ammonium phosphate)) to study the nitrogen removal capabilities for treatment of sanitary landfill leachate containing high ammonia concentration, and the comparison between … …American Journal of Environmental Sciences, Vol. 3, Issue 4 · 31 Dec 2007 · 7,032 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEvaluation of Nitrogen and Potassium Uptake and Efficiency of Two Rice Varieties Cultivated on an Acid SoilShajarutulwardah Mohd Yusob, Osumanu Haruna Ahmed, Wan Asrina Wan Yahaya, Nik Muhamad Ab. MajidA pot study was carried with the following objectives: (i) To investigate N and K uptake of MR 220 and ARC 2 rice varieties grown on Bekenu series (Tipik Tualemkuts), and (ii) To investigate N and K use efficiency of MR 220 and ARC 2 grown on Bekenu series. Treatments evaluated were: (i) MR 220 and ARC 2 under fertilized … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 3 · 30 Sep 2007 · 7,846 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Organic and Inorganic Fertilizers on Nitrogen and Potassium Uptake and Yield of Sweet Corn Grown on an Acid SoilMohd. Taufik Mohd. Yusuff, Osumanu Haruna Ahmed, Wan Asrina Wan Yahaya, Nik Muhamad Ab. MajidA field study was carried with the following objectives: (i) To investigate the effect of compost, N, and K fertilizers on selected chemical properties of Bekenu series (Tipik Tualemkuts), and (ii) To investigate the effect of compost, N and K fertilizers on N and K uptake and yield of Masmadu variety cultivated on Bekenu series. Treatments evaluated were: (i) No … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 2 · 30 Jun 2007 · 9,968 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGenetic Complementation Studies of Human Pin1 in Azotobacter vinelandii Revealed that it Requires Amino Terminus of the NifM to Deliver PPIase Effect to the Fe-protein of NitrogenaseKumaraguru Raja, Lakshmi Pulakat, Nara GaviniThe NifM is a peptidyl prolyl cis-trans isomerase and is required for the maturation and activation of the Fe protein of Nitrogenase. Since the carboxyl terminus of NifM is similar to the Human Pin1, we expressed the Human Pin1 in A. vinelandii BG98, a nifM mutant strain containing a kanamycin insertion and found that it could not complement the function … …American Journal of Biochemistry and Biotechnology, Vol. 2, Issue 1 · 31 Mar 2006 · 6,708 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAn Investigation of Compressed Natural Gas Engine for Nitrogen Oxides ReductionP. M. Diaz, B. Durga PrasadProblem statement: This study describes the use of Reformer Gas (RG) to alter NOx emission in a CNG-fueled HCCI engine. Comparison with diesel, natural gas has a very high octane number (≈120) and high auto-ignition temperature (≈600°C). Composed mostly of methane, natural gas is the only common fuel to manifest relatively pure, single-stage combustion. Other fuels have stronger low-temperature reaction … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 15 May 2012 · 7,298 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleLow-doping Effects of Nanostructure ZnO: Sn tin films annealed at different temperature in Nitrogen ambient to be applied as an Anti-reflecting coating (ARC)H. Abdullah, M.N. Norazia, S. Shaari et al.Problem statement: The focus of this research is to discover the significant influences of substituting low concentration Sn at Zn-site as an Anti-Reflecting Coating (ARC) for Zn1-xSnxO compound. The effects of tin dopants on the structural and morphology properties of ZnO thin films prepared using the sol-gel method were investigated. Approach: The effects of annealing temperature on the deposited films … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 1 · 31 Mar 2010 · 8,607 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffects of Salmonella typhimurium Challenge on Swine Growth, Nitrogen Balance, Insulin-like Growth Factor-I, and Acute Phase ProteinsJ.A. Loughmiller, S.S. Dritz, J.L. Nelssen et al.Growing barrows were used to determine the effects of an en teric disease challenge on nutrient balance, growth, acute phase proteins, and IGF-I. Pigs were challenged on d 0 with Salmonella typhimurium (S; N=21), or unchallenged and fed ad libitum (A; n=6), or unchallenged and pair-fed the same amount of feed as a challenged pig (P; n=8). Blood was collected … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 1 · 31 Mar 2007 · 7,552 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffects of Maize Potato Intercropping and Different Fertilization Methods on Rhizosphere Soil Microorganisms and Yield of PotatoHuanjin Ma, Shengguang Xu et al.A field experiment with three replicates was conducted to explore the effects of maize-potato intercropping and different nitrogen application strategies on rhizosphere soil microorganisms and potato yield. Microbial community analysis was based on relative abundance. Maize-potato intercropping improves land use efficiency, yet how differentiated nitrogen management regulates rhizosphere microecology and potato productivity in this system remains unclear. Clarifying nitrogen-mediated shifts … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 3 · 14 Sep 2026 · 790 accessesView PDFCite