Showing 301 - 320 results of 655 for search '"nitrate"', query time: 0.05s Refine Results
  1. 301

    Multicompartment Ecosystem Mass Balances as a Tool for Understanding and Managing the Biogeochemical Cycles of Human Ecosystems by Lawrence A. Baker, Diane Hope, Ying Xu, Jennifer Edmonds

    Published 2001-01-01
    “…The N balance is used to demonstrate how nitrate in pumped groundwater used for crop irrigation could be used to reduce inputs of commercial fertilizer and decrease N leaching to aquifers. …”
    Get full text
    Article
  2. 302

    Biodegradation Potential of Oil-based Drill Cuttings Encapsulated with Cement in the Soil Environment by Rim-Rukeh Akpofure

    Published 2013-05-01
    “…Results of soil analyses show that physico-chemical and biological characteristics of the soil environment as; pH (5.6 – 3.9), temperature (27.7 – 39.5 oC), redox potential (-114mV – (-80mV), total organic carbon (12.7% - 7.3%), sulphate (0.7 – 0.2mg/l), nitrate (6.7 – 2.2mg/l), moisture content (82-89%) and total microbial count (105 – 1013 cfu/g). …”
    Get full text
    Article
  3. 303

    Hemoglobin: A Nitric-Oxide Dioxygenase by Paul R. Gardner

    Published 2012-01-01
    “…The mechanism of NOD catalysis by representative single domain hemoglobins and multidomain flavohemoglobin occurs through a multistep mechanism involving O2 migration to the heme pocket, O2 binding-reduction, NO migration, radical-radical coupling, O-atom rearrangement, nitrate release, and heme iron re-reduction. Unraveling the physiological functions of multiple NODs with varying expression in organisms and the complexity of NO as both a poison and signaling molecule remain grand challenges for the NO field. …”
    Get full text
    Article
  4. 304

    Impacts of Effluents on the Limnology of a Tropical River, Southwestern Nigeria by Abeke Adedolapo Ayoade, A Olajumoke Olusegun

    Published 2013-07-01
    “…The mean biochemical oxygen demand (106.9 ± 58.25 mg/l), Nitrate (40 ± 30.8 mg/l), dissolved oxygen (4.2 ± 2.16 mg/l) and total suspended solids (124.02 ± 16.09 mg/l) were not within permissible standard limits suitable for aquatic life and domestic purposes. …”
    Get full text
    Article
  5. 305

    The Effects of Circadian Rhythm on Lead-Induced Toxicity in the DBC1.2 Olfactory Dark Basal Cell Line by Teru Kamogashira, Shu Kikuta, Tatsuya Yamasoba

    Published 2025-01-01
    “…Then, 60 h after seeding, the cells were treated with or without Pb (II) nitrate in HEPES buffer for 1 h. Mitochondrial function and cell viability were evaluated 84 h after seeding. …”
    Get full text
    Article
  6. 306

    Ecosystem Processes and Nitrogen Export in Northern U.S. Watersheds by Robert Stottlemyer

    Published 2001-01-01
    “…The ratio of mean monthly headwater nitrate (NO3–) concentration to precipitation NO3– concentration declined with increased precipitation concentration. …”
    Get full text
    Article
  7. 307

    Ground Water Quality Determination of former Lake Haramaya, Haramaya District, Eastern Haranghe Zone, Oroma Regional State, Ethiopia by Zinabu Tebeje Zewdu

    Published 2013-07-01
    “…Based on TDS and hardness the samples were classified as fresh and very hard water. 33.3 percent of Fluoride (mg/l) and 66.67 percent of Nitrate (mg/l) results were higher than WHO recommended value with mean of 0.88 ± 0.18 and 17.6 ± 4.4 respectively. 66.7 percent of the turbidity was found to be above the WHO limit and 83.3 percent of the samples have total colifoms above the guideline value and it reveal the necessity of treatment before use. …”
    Get full text
    Article
  8. 308

    Responses of endogenous proline in rice seedlings under chromium exposure by X.Z. Yu, M.R. Lu

    Published 2016-12-01
    “…Hydroponic experiments were performed to exam the dynamic change of endogenous proline in rice seedlings exposed to potassium chromate chromium (VI) or chromium nitrate chromium (III). Although accumulation of both chromium species in rice seedlings was obvious, more chromium was detected in plant tissues of rice seedlings exposed to chromium (III) than those in chromium (VI), majority being in roots rather than shoots. …”
    Get full text
    Article
  9. 309

    Modulation of nitric oxide synthase activity in macrophages by P. G. Jorens, K. E. Matthys, H. Bult

    Published 1995-01-01
    “…NO decomposes into other nitrogen oxides such as nitrite (NO2−) and nitrate (NO3−), and in the presence of superoxide anion to the potent oxidizing agent peroxynitrite (ONOO−). …”
    Get full text
    Article
  10. 310

    Examining the optimum concentrations of CuO, ZnO, TiO2, and GO in porous asphalt for urban surface runoff using response surface Methodology by Ramtin Sobhkhiz Foumani, Esmaeil Fatehifar, Taher Rajaee

    Published 2025-01-01
    “…Graphene oxide and titanium oxide asphalts reduced the levels of specific pollutants: phosphate, lead, zinc, nitrate, and TSS.…”
    Get full text
    Article
  11. 311

    Spatial Distribution of Nitrogen on Grazed Karst Landscapes by Douglas G. Boyer, Ghiath A. Alloush

    Published 2001-01-01
    “…An estimated one-third of the region’s farms, cattle, and agricultural market value are located on karst terrain. Mean nitrate concentrations in several karst springs in southeastern West Virginia exhibit a strong linear relationship with the percentage of agriculture land cover. …”
    Get full text
    Article
  12. 312

    Penggunaan Tetes Telinga Serum Autologous dengan Amnion untuk Penutupan Perforasi Membran Timpani by Hidayatul Fitria, Yan Edward

    Published 2012-07-01
    “…Salah satunya dengan mengkaustik tepi perforasi dengan menggunakan silver nitrat untuk membuat luka baru, kemudian digunakan amnion sebagai jembatan (bridge) dan faktor regulasi yang terdapat pada tetes telinga serum autologous. …”
    Get full text
    Article
  13. 313

    Assessment of Near-Bottom Water Quality of Southwestern Coast of Sarawak, Borneo, Malaysia: A Multivariate Statistical Approach by Chen-Lin Soo, Cheng-Ann Chen, Shabdin Mohd-Long

    Published 2017-01-01
    “…Deterioration in coastal water quality has been observed in different regions of Sarawak corresponding to land use patterns in the region. Nevertheless, nitrate-nitrogen exceeded the guideline value at all sampling stations along the coastline. …”
    Get full text
    Article
  14. 314

    Anion effect on obtaining nano-sized metal particules by reduction reaction by Sebati İlhan, Melda Bolat, Kadir Erol, Dursun Ali Köse

    Published 2022-06-01
    “…This work makes a research on the anion effects on the size mass nanoparticules of metals Cu(II), Ni(II), Co(II), Zn(II) and Mn(II) after reduction to nano size of sodium bor hidrur which belongs to salt of asetat and chlor, nitrate, sulfate. Depending on the radius ratios and solubility values of metal cations and anions, the nanoparticle obtained from Cu(CH3COO)2 salt has the smallest radius. …”
    Get full text
    Article
  15. 315

    Impacts of Effluents on the Limnology of a Tropical River, Southwestern Nigeria by Abeke Adedolapo Ayoade, A Olajumoke Olusegun

    Published 2013-07-01
    “…The mean biochemical oxygen demand (106.9 ± 58.25 mg/l), Nitrate (40 ± 30.8 mg/l), dissolved oxygen (4.2 ± 2.16 mg/l) and total suspended solids (124.02 ± 16.09 mg/l) were not within permissible standard limits suitable for aquatic life and domestic purposes. …”
    Get full text
    Article
  16. 316

    2D Electrical Imaging Surveys for Leachate Plume Migration at an Old Dump Site in Ibadan South Western Nigeria: A Case Study by Dare Omolayo, Fatoba Julius Tope

    Published 2014-01-01
    “…All the traverses show areas of very low resistivity values ranging between 4 ohm-m and 13.8 ohm-m; in addition to this, the water samples collected from hand dug wells that surround the dump site show high total dissolved solids (TDS) with an average value of 2033 mg/L, high conductivity with an average value of 2868 mg/L, and high nitrate value (63 mg/L); these values are above the World Health Organization (WHO) permissible values. …”
    Get full text
    Article
  17. 317

    Preparation and Characterization of Nickel Ferrite-SiO2/Ag Core/Shell Nanocomposites by I. G. Blanco-Esqueda, G. Ortega-Zarzosa, J. R. Martínez, A. L. Guerrero

    Published 2015-01-01
    “…Then, silver nanoparticles were incorporated by hydrolysis-condensation of tetraethyl orthosilicate, which contains silver nitrate on the surface of the nickel ferrite-SiO2 core/shell. …”
    Get full text
    Article
  18. 318

    Green Synthesis of Trimetallic Nanocomposite (Ru/Ag/Pd)-Np and Its In Vitro Antimicrobial and Anticancer Activities by Shaimaa Hussein, Ayman M. Mahmoud, Hassan A. Elgebaly, Omnia Magdy Hendawy, Emad H. M. Hassanein, Shaima M. N. Moustafa, Nasser F. Alotaibi, Amr M. Nassar

    Published 2022-01-01
    “…In this study, we used the aqueous extract of garlic tunicate leaf to reduce a mixture of equal amounts of ruthenium chloride, silver nitrate, and palladium acetate for the biosynthesis of ruthenium/silver/palladium trimetallic nanocomposite (Ru/Ag/Pd)-Np. …”
    Get full text
    Article
  19. 319

    Water quality assessment of Bone River using STORET method by Miftahul Khair Kadim, Nuralim Pasisingi

    Published 2024-12-01
    “…There were 12 water quality parameters measured: temperature, TSS, DO, pH, COD, BOD, nitrate, phosphate, ammonia, and the heavy metals (Pb, Cd, and Hg) concentration. …”
    Get full text
    Article
  20. 320

    Growth Of black sea cucumber Holothuria atra in an integrated aquaculture system by Maureen Mercy Pattinasarany, Elizabeth Miklen Palinussa, Jolen Matakupan

    Published 2024-12-01
    “…Water quality parameters were measured in situ every day except for TOM, ammonia, and nitrate which were measured at the beginning, middle, and end of the study.  …”
    Get full text
    Article