Results 1 to 10 of about 149,308 (191)

Elastic and inelastic scattering of 15N ions by 13C nuclei at energy 84 MeV [PDF]

Ядерна фізика та енергетика, 2021
New experimental data of the 15N + 13C elastic and inelastic scattering were obtained at the energy Elab(15N) = 84 MeV. The data were analyzed within the coupled-reaction-channels method.
A. T. Rudchik, A. A. Rudchik, О. E. Kutsyk, К. Rusek, K. W. Kemper, E. Piasecki, A. Stolarz, A. Trczińska, Val. М. Pirnak, О. А. Ponkratenko, I. Strojek, E. І. Koshchiy, R. Siudak, S. B. Sakuta, S. A. Vozniuk, А. P. Ilyin, Yu. M. Stepanenko, V. V. Uleshchenko, Yu. O. Shyrma   +18 more
doaj   +1 more source

Lichens as bio-monitors of polycyclic aromatic hydrocarbons: Measuring the impact of features and traffic patterns

Heliyon, 2023
The role of road characteristics, including gradient and speed control devices, in influencing emission dynamics remains to be fully elucidated. Most studies have focused on fuel consumption as an indirect indicator of sector emissions instead of ...
Diana Marcela Uribe, Lina María Ortega, Marco Tadeu Grassi, Rafael Garrett Dolatto, Nazly Efredis Sánchez   +4 more
doaj   +1 more source

Determination of polycyclic aromatic hydrocarbons extracted from lichens by gas chromatography–mass spectrometry

MethodsX, 2022
Lichens are well-known biomonitors for semi-volatile pollutants, due to their ability to absorb and retain different chemical compounds such as Polycyclic Aromatic Hydrocarbons (PAHs), directly linked to levels in the atmosphere.
Lina María Ortega Fernández, Diana Marcela Uribe Ante, Marco Tadeu Grassi, Rafael Garrett Dolatto, Nazly Efredis Sánchez   +4 more
doaj   +1 more source

Elastic and inelastic scattering of 15N ions by 10B at energy 81 MeV. Isotopic effects in scattering of 15N + 10В, 15N + 11В, 14N + 10В nuclei [PDF]

Ядерна фізика та енергетика, 2022
New experimental data of angular distributions for the elastic and inelastic scattering of 15N ions by 10B nuclei were obtained at the energy Elab(15N) = 81 MeV. The experimental data were analyzed within the coupled-reaction channels method (CRC).
А. Т. Rudchik, A. A. Rudchik, V. V. Khejlo, К. Rusek, K. W. Kemper, E. Piasecki, A. Stolarz, A. Trzcińska, Val. М. Pirnak, О. А. Ponkratenko, E. І. Koshchy, O. E. Kutsyk, S. Yu. Mezhevych, А. P. Ilyin, Yu. M. Stepanenko, V. V. Uleshchenko, Yu. O. Shyrma   +16 more
doaj   +1 more source

Separate and Combined Effects of Silicon and Potassium on Growth and Nitrogen Uptake in Okra Plants as Influenced by Salinity of Irrigation Water [PDF]

Journal of Stress Physiology & Biochemistry, 2022
The aim of this pot experiment was to determine the impact of foliar spraying of silicic acid (Si) with or without potassium fertilizer amendment (K) on dry matter (DM), nitrogen uptake (TN), efficient use of N fertilizer (NUE) and pod yield of okra ...
F. Kurdali, M. Al-Chammaa, F. Al-Ain
doaj  

Long-term fermented organic fertilizer application reduce urea nitrogen-15 loss from plastic shed agricultural soils

Annals of Agricultural Sciences, 2023
Continuous application of fermented organic fertilizer can improve soil quality, while the performance of nitrogen (N) in the improved soils is rarely investigated.
Hou Maomao, Tang Songyan, Zhu Qinyuan, Chen Jingnan, Xiao Ying, Jin Qiu, Zhong Fenglin   +6 more
doaj   +1 more source

Isotope ratios and concentration of N in needles, roots and soils of Norway spruce (Picea abies [L.] Karst.) stands as influenced by atmospheric deposition of N

Journal of Forest Science, 2005
This study aims to investigate the changes in isotope ratios in foliage and soils of two Norway spruce (Picea abies [L.] Karst.) forests greatly differing in their atmospheric N deposition and climatic conditions.
S. P. Sah
doaj   +1 more source

Effects of Exogenous Silicic (Si) and Salicylic acid (SA) Applied Individually or in Combination on Barley Growth and Nitrogen Uptake under Various Watering Regimes [PDF]

Journal of Stress Physiology & Biochemistry, 2023
This pot experiment investigated the effect of treatment with exogenous silicic (Si) and/or salicylic acids (SA) on dry matter (DM), nitrogen yield (NY) and soil N uptake from soil (Ndfs) and from fertilizer (Ndff) nitrogen use efficiency (%NUE) of ...
Fawaz Kurdali
doaj  

The contamination of commercial 15N2 gas stocks with 15N-labeled nitrate and ammonium and consequences for nitrogen fixation measurements. [PDF]

PLoS ONE, 2014
We report on the contamination of commercial 15-nitrogen (15N) N2 gas stocks with 15N-enriched ammonium, nitrate and/or nitrite, and nitrous oxide. 15N2 gas is used to estimate N2 fixation rates from incubations of environmental samples by monitoring the
Richard Dabundo, Moritz F Lehmann, Lija Treibergs, Craig R Tobias, Mark A Altabet, Pia H Moisander, Julie Granger   +6 more
doaj   +1 more source

STELLAR ORIGINS OF EXTREMELY C-13- AND N-15-ENRICHED PRESOLAR SIC GRAINS: NOVAE OR SUPERNOVAE? [PDF]

, 2016
Extreme excesses of 13C (12C/13C < 10) and 15N (14N/15N < 20) in rare presolar SiC grains have been considered diagnostic of an origin in classical novae, though an origin in core collapse supernovae (CCSNe) has also been proposed. We report C, N, and Si
Alexander, Conel M. O'D., Alexander, Conel M. O’D., Jose, Jordi, José, Jordi, Liu, Nan, Nguyen, Nguyen, Ann, Nittler, Larry R., Pignatari, Marco, Wang, Jianhua   +9 more
core   +3 more sources