Results 11 to 20 of about 165,176 (291)

Environmental concentrations as ratios of random variables

open access: yesEnvironmental Research Letters, 2022
Human-induced environmental change increasingly threatens the stability of socio-ecological systems. Careful statistical characterization of environmental concentrations is critical to quantify and predict the consequences of such changes on human and ...
Saverio Perri, Amilcare Porporato
doaj   +1 more source

Nitrogen Metabolism and Antioxidant Capacity of Selected Vegetables from Organic and Conventional Crops

open access: yesApplied Sciences, 2023
The study aimed to determine the level of selected indicators of nitrogen metabolism in vegetables from organic (organic food store) and conventional (supermarket and local market) crops.
Tamara Chadzinikolau   +1 more
doaj   +1 more source

Paliperidonium nitrate [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2012
In the title mol-ecular salt (systematic name: 3-{2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]eth-yl}-9-hy-droxy-2-methyl-1,6,7,8,9,9a-hexa-hydro-pyrido[1,2-a]pyrimidin-4-one nitrate), C(23)H(29)FN(4)O(3) (+)·NO(3) (-), the piperidine ring displays a chair conformation and its N atom is protonated; the N-H bond is in an axial orientation.
Jingshui Ge, Yang-Hui Luo
openaire   +3 more sources

Nitrates for the Management of Acute Heart Failure Syndromes, A Systematic Review [PDF]

open access: yes, 2016
© The Author(s) 2016Intravenous nitrates are widely used in the management of acute heart failure syndrome (AHFS) yet with lack of robust evidence to support their use.
Farag, Mohamed   +2 more
core   +2 more sources

Measurements of PAN, alkyl nitrates, ozone, and hydrocarbons during spring in interior Alaska [PDF]

open access: yes, 1996
Measurements of the atmospheric mixing ratios of ozone, peroxyacetylnitrate (PAN), hydrocarbons, and alkyl nitrates were made in a boreal forest ecosystem in the interior of Alaska from March 15 to May 14, 1993.
Atlas, E   +4 more
core   +2 more sources

Monitoring the Content of Nitrates in Vegetables and the Influence of the Pickling Technology on the Denitrification Process [PDF]

open access: yes, 2018
The aim of the work was to determine the concentration of nitrites in vegetable products (tomatoes, cucumbers, white cabbage, table beet, carrot, potatoes, onion and green onion, lettuce, spinach and parsley), realized at markets of the cities Ternopil ...
Horiuk, Y. (Yulia)   +5 more
core   +2 more sources

Efficient syntheses of climate relevant isoprene nitrates and (1R,5S)-(−)-myrtenol nitrate [PDF]

open access: yes, 2016
Here we report the chemoselective synthesis of several important, climate relevant isoprene nitrates using silver nitrate to mediate a ’halide for nitrate’ substitution. Employing readily available starting materials, reagents and Horner–Wadsworth–Emmons
Bew, Sean   +3 more
core   +2 more sources

Developing an empirical model for assessment of total nitrogen inflow to rivers and lakes in the Biebrza river watershed, Poland

open access: yesPrzegląd Naukowy Inżynieria i Kształtowanie Środowiska, 2023
Nitrogen load is crucial for its application in various fields such as agriculture and improving water quality control for authorities responsible for establishing agricultural policies in the area.
Jessica Canchig   +2 more
doaj   +1 more source

Latitudinal, vertical, and seasonal variations of C-1-C-4 alkyl nitrates in the troposphere over the Pacific Ocean during PEM-Tropics A and B: Oceanic and continental sources [PDF]

open access: yes, 2003
We present concentration distributions of C1‐C4 alkyl nitrates observed during the NASA airborne campaigns Pacific Exploratory Mission (PEM) ‐Tropics A (September–October 1996) and PEM‐Tropics B (March–April 1999).
Atlas, E   +5 more
core   +2 more sources

Using geographic information system (GIS) and remote sensing (RS) in zoning nitrate concentration in the groundwater of Birjand, Iran [PDF]

open access: yesJournal of Advances in Environmental Health Research, 2016
Previous studies have shown that the presence of nitrate in drinking water can cause several diseases especially in the infants, such as cancer and blue baby. The Environmental Protection Agency (EPA) has since adopted the 50 mg/l standard as the maximum
Reza Ali Fallahzadeh   +8 more
doaj   +1 more source

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