Showing 481 - 500 results of 655 for search '"nitrate"', query time: 0.05s Refine Results
  1. 481

    Hydrochemistry of a Tropical harbor: Influence of Industrial and Municipal inputs by Balogun Kayode James, Ladigbolu Ismail Adejare, Olaji Ebenezer Dayo

    Published 2013-05-01
    “…Surface water of the Harbour was characterized by fairy constant temperature with a range of ( 25.67 – 28.33oC), alkaline pH (7.70 – 8.42mg/l), brackish salinity (7.00 – 22.47PSU), BOD5 and COD values of (0.80 – 3.33mg/l) and (6.10 – 11.30mg/l) respectively, total dissolved solids(6.00 – 19.00mg/l), dissolved oxygen content (4.13 – 7.60mg/l) which fell below FEPA limit of 10mg/l, alkalinity (8.00 – 15.33mg/l), low Nitrate value (0.08 – 0.12mg/l), moderately high Phosphate (0.57 – 1.60mg/l), high Silicate values (1.27 – 9.23mg/l), moderate concentration of heavy metals salts such as Cr (0.03 – 0.60mg/l), Pb (0.22 – 0.61mg/l), Cd (nd – 0.02mg/l, Fe (0.67 – 1.41mg/l) and high Cu values (4.53 – 5.55mg/l). …”
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    Article
  2. 482

    The Kerbernez long-term experiment: A dataset on crop yield and soil organic matter evolution in forage crop rotations and permanent grasslands in a temperate oceanic climateData G... by Anne-Isabelle Graux, Alice Cadéro, Fabien Ferchaud, Françoise Vertès

    Published 2025-02-01
    “…This experiment compared the effect of different forage crop rotations fertilized with ammonium nitrate and/or slurry, with or without grassland, on forage production (quantity, quality) and changes in soil physio-chemical characteristics. …”
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    Article
  3. 483

    Transcriptome-Based Modeling Reveals that Oxidative Stress Induces Modulation of the AtfA-Dependent Signaling Networks in Aspergillus nidulans by Erzsébet Orosz, Károly Antal, Zoltán Gazdag, Zsuzsa Szabó, Kap-Hoon Han, Jae-Hyuk Yu, István Pócsi, Tamás Emri

    Published 2017-01-01
    “…Many of them, including the downregulation of the mitotic cell cycle, as the MSB stress-specific upregulation of FeS cluster assembly and the MSB stress-specific downregulation of nitrate reduction, tricarboxylic acid cycle, and ER to Golgi vesicle-mediated transport, showed AtfA dependence. …”
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  4. 484

    Gel–sol synthesis of hierarchical CaO using pollen as biotemplate for biodiesel production by Zheng, Jingdi, Tao, Shuang, Yang, Ying, Tang, Ying

    Published 2024-05-01
    “…The CaO(S) was synthesized through sol–gel-biotemplate method using calcium nitrate-ethanol-citric acid as precursor and rape pollen as biotemplate, followed by the characterizations such as N2-Brunauer Emmet Teller (N2-BET), X-ray diffraction (XRD), Fourier transform-infrared (FT-IR), CO2-temperature programmed desorption (CO2-TPD), Thermogravimetry differential thermal analysis (TG-DTA) and scanning electron microscopy (SEM). …”
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  5. 485

    Antibacterial Additive for Polystyrene Based on Silver Nanoparticles Supported on Titanium Dioxide by Miguel A. Waldo-Mendoza, Lucía Martínez-Jothar, Socorro Oros-Ruiz, E. G. Villabona-Leal, Luis Manuel Céspedes-Covarrubias, Zoe V. Quiñones-Jurado, Eduardo Ortega, Elías Pérez

    Published 2016-01-01
    “…These particles were synthesized using a deposition-precipitation method by adding silver nitrate as metallic precursor, sodium hydroxide as reducing agent, and commercial TiO2 (P25) as support. …”
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  6. 486

    Early Information About Bio-physical Quality of Seaweed Culture (Eucheuma cottonii) in Waworada Bay, Bima Regency by M. Sirajuddin

    Published 2009-01-01
    “…PCA analysis shows that the main parameters of growth seaweed culture was light penetration, water current, water deepness, pest, salinity, nitrate and Pb. As additional parameters were temperature, COD, DO, Phosphate, and pH. …”
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    Article
  7. 487

    Improved Corn Yields When Humic Acid Extracted from Composted Manure Is Applied to Acid Soils with Phosphorus Fertilizer by Benito H. Purwanto, Putri Wulandari, Endang Sulistyaningsih, Sri N. H. Utami, Suci Handayani

    Published 2021-01-01
    “…The photosynthetic rate and nitrate reductase (NR) activity at 10 WAP were significantly increased p<0.05 with H5P1 and H10P1, respectively. …”
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  8. 488

    Response of Soil C and N, Dissolved Organic C and N, and Inorganic N to Short-Term Experimental Warming in an Alpine Meadow on the Tibetan Plateau by Cheng-Qun Yu, Zhen-Xi Shen, Xian-Zhou Zhang, Wei Sun, Gang Fu

    Published 2014-01-01
    “…Although alpine meadows of Tibet are expected to be strongly affected by climatic warming, it remains unclear how soil organic C (SOC), total N (TN), ammonium N (NH4+-N) , nitrate N (NO3+-N), and dissolved organic C (DOC) and N (DON) respond to warming. …”
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  9. 489

    Evaluation of the quality characteristics of fermented sausages and sausage-like products sold in kars by Çiğdem Sezer, Aksem Aksoy, Özgür Çelebi, Turgay Deprem, Metin Öğün, Nebahat Bilge Oral, Leyla Vatansever, Abamüslüm Güven

    “…Listeria monocytogenes was isolated in four (10%) of the fermented sausage samples and Salmonella spp in two fermented sausage samples (5%). Nitrate and nitrite levels in the sausage were found to be 14.88&#8211;943.71 mg/kg and 0.46-378.16 mg/kg, respectively. …”
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  10. 490

    A Throughfall Collection Method Using Mixed Bed Ion Exchange Resin Columns by Mark E. Fenn, Mark A. Poth, Michael J. Arbaugh

    Published 2002-01-01
    “…Ions retained by the resin are then extracted in the same column with 2N KCl and analyzed for nitrate and ammonium. Deposition values in throughfall from conventional throughfall solution collectors and colocated ion exchange samplers were not significantly different during consecutive 3- and 4-month exposure periods at a high (Camp Paivika; >35 kg N ha-1 year-1) and a low deposition (Barton Flats; 5–9 kg N ha-1 year-1) site in the San Bernardino Mountains in southern California. …”
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  11. 491
  12. 492

    Persistent functional and taxonomic groups dominate an 8,000-year sedimentary sequence from Lake Cadagno, Switzerland by Paula Rodriguez, Jasmine S. Berg, Longhui Deng, Longhui Deng, Hendrik Vogel, Michal Okoniewski, Mark A. Lever, Mark A. Lever, Cara Magnabosco

    Published 2025-02-01
    “…Despite these dramatic changes in taxonomic community composition and sediment geochemistry throughout the sediment core, higher-order functional categories and metabolic marker gene abundances remain relatively consistent and indicate a microbial community capable of carbon fixation, fermentation, dissimilatory sulfate reduction and dissimilatory nitrate reduction to ammonium. As the conservation of these metabolic pathways through changes in microbial community compositions helps preserve the metabolic pathway connectivity required for nutrient cycling, we hypothesize that the persistence of these functional groups helps enable the Lake Cadagno sedimentary communities persist amidst changing environmental conditions.…”
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  13. 493

    Impacts of Industrial Wastewater Effluent on Ekerekana Creek and Policy Recommendations for Mitigation by Ogechi Amanda Onukogu, Chisom N. Onyebuchi, Temiloluwa O. Scott, Tolulope Babawarun, Chukuneye Neye-Akogo, Olusegun A. Olagunju, Chinedum Gloria Uzougbo

    Published 2023-06-01
    “…Water samples were collected and tested using established laboratory techniques, focusing on parameters such as heavy metals, pH levels, Phosphate, Nitrate, Temperature, Dissolved Oxygen, and BOD5. …”
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  14. 494

    The Effectiveness of an Anoxic-Oxic-Anoxic-Oxic Sequencing Batch Reactor System (A2/O2-SBR) to Treat Electroplating Wastewater and the Bacterial Community within the System by Tanta Suriyawong, Sasidhorn Buddhawong, Thanit Swasdisevi, Suntud Sirianuntapiboon

    Published 2025-01-01
    “…However, as the anoxic period increased, the amounts of TKN, nitrite nitrogen (NO2--N), nitrate nitrogen (NO3--N), and TN declined. Reactor-IV showed a high removal efficiency for heavy metals (Zn2+, 89.74%; Cd2+, 81.37%), TKN (89.20%), and TN (84.25%), and also effectively treated NH4+-N (78.84%), biochemical oxygen demand (BOD5; 93.5%), and chemical oxygen demand (COD; 84.9%). …”
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  15. 495

    Comparative transcriptomic and phenotypic analysis of monoclonal and polyclonal Populus deltoides genotypes by Macy Gosselaar, Macy Gosselaar, Mark A. Arick, Chuan-Yu Hsu, Heidi Renninger, Courtney M. Siegert, Waqar Shafqat, Daniel G. Peterson, Austin Himes

    Published 2025-01-01
    “…Phenotypic results, upregulated genes and enriched biological pathways identified in this study may explain the enhanced productivity, increased nitrate content, and expanded canopy in polyclonal plantings. …”
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    Article
  16. 496

    Optimization of the Production Parameters of Composites from Sugarcane Bagasse and Iron Salts for Use in Dye Adsorption by Carine Pereira da Silva, Marluce Oliveira da Guarda Souza, Walter Nei Lopes dos Santos, Laiana Oliveira Bastos Silva

    Published 2019-01-01
    “…In this study, mechanical mixtures of sugarcane bagasse and iron salts (nitrate, acetate, or a mixture of both) were subjected to thermal decomposition for producing iron oxide and carbonaceous composite materials, which were evaluated as adsorbents for removing dyes from water using methylene blue (MB) as a model system. …”
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  17. 497

    Silver Nanoparticles Stabilized by Poly (Vinyl Pyrrolidone) with Potential Anticancer Activity towards Prostate Cancer by Ahmed A. H. Abdellatif, Ahmed Abdelfattah, Abdellatif Bouazzaoui, Shaaban K. Osman, Issa Saad Al-Moraya, Abdulaziz M. Saleh Showail, Mansour Alsharidah, Ashraf Aboelela, Osamah Al Rugaie, Tarek M. Faris, Hesham M. Tawfeek

    Published 2022-01-01
    “…Silver nanoparticles-poly (vinyl pyrrolidone) (AgNPs-PVP) were prepared using the reduction of silver nitrate and stabilized with PVP. They are characterized through yield percentage, UV-VIS, FT-IR, size, charge, and morphology. …”
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  18. 498

    Assessing the effect of deposited bitumen or asphaltenes on the nitrification process in the north saskatchewan river sediment by Nayereh Saborimanesh, Patricia Q. Tran, Md Hosnay Mobarok

    Published 2025-04-01
    “…A comparison of the unexposed NH3-enriched sediment (Ctl) and Bit-exposed NH3-enriched sediment showed that exposure of nitrifying communities did not affect ammonia oxidation but decreased nitrite (50 %) and nitrate (30 %) production. Additionally, the sedimentary microbial community composition altered from its initial composition to a new profile post-exposure to Asp or Bit. …”
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  19. 499

    Intense Red Upconversion Emission and Shape Controlled Synthesis of Gd2O3:Yb/Er Nanocrystals by Zhigao Yi, Boyun Wen, Chao Qian, Haibo Wang, Ling Rao, Hongrong Liu, Songjun Zeng

    Published 2013-01-01
    “…Yb/Er codoped Gd(OH)3 was synthesized firstly via a simple hydrothermal treatment of the corresponding nitrate in the presence of alkali by tuning the pH values. …”
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  20. 500

    Plasmodium Parasitaemia and Urine Alterations among Pregnant Women Attending Antenatal Care in Aba Metropolis, Abia State, Nigeria by Paula Melariri, Chioma Ihemanma, Udoka Chigbo, Kirstie Eastwood, Chika Uche, Paschal Etusim

    Published 2024-01-01
    “…Malaria-infected participants showed statistically significant frequencies of proteinuria (p<0.001, OR 274.14, 95% CI 16.91-4444.0), bilirubinuria (p<0.001, OR 49.29, 95% CI 11.01-186.34), and urobilinogenuria (p<0.001, OR 65.16, 95% CI 4.00-1062.40) than those not infected. Ascorbic acid, nitrate, and ketone showed no significant associations with malaria infection at p>0.005. …”
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