Results 41 to 50 of about 4,736,631 (400)

Effects of Nitrogen Fertilization on Monoterpenes of Jack Pine Seedlings and Weight Gain of Jack Pine Budworm (Lepidoptera: Tortricidae) [PDF]

open access: yes, 2017
Nine-month old jack pine (Pinus banksiana) seedlings were grown in a greenhouse under four nitrogen fertilization regimes. Levels of total nitrogen and five monoterpenes in new foliage were measured. Fertilization resulted in four significantly different
Kulman, Herbert M   +2 more
core   +2 more sources

An Improved Unmixing-Based Fusion Method: Potential Application to Remote Monitoring of Inland Waters

open access: yesRemote Sensing, 2015
Although remote sensing technology has been widely used to monitor inland water bodies; the lack of suitable data with high spatial and spectral resolution has severely obstructed its practical development.
Yulong Guo   +5 more
doaj   +1 more source

Global analysis of nitrogen and phosphorus limitation of primary producers in freshwater, marine and terrestrial ecosystems.

open access: yesEcology Letters, 2007
The cycles of the key nutrient elements nitrogen (N) and phosphorus (P) have been massively altered by anthropogenic activities. Thus, it is essential to understand how photosynthetic production across diverse ecosystems is, or is not, limited by N and P.
J. Elser   +12 more
semanticscholar   +1 more source

An evaluation of weld metal nitrogen retention and properties in 316NL austenitic stainless steel [PDF]

open access: yes, 2011
A series of tests were conducted using varying levels of nitrogen and helium in a conventional argon shielding gas when welding 316LN austenitic stainless steel. The outcome was that a 15 per cent nitrogen addition to the argon shielding gas had the most
Baker, Thomas   +2 more
core   +1 more source

The role of nitrogen uptake on the competition ability of three vineyard Saccharomyces cerevisiae strains [PDF]

open access: yes, 2017
Three vineyard strains of Saccharomyces cerevisiae, P301.4, P304.4 and P254.12, were assayed in comparison with a commercial industrial strain, QA23. The aim was to understand if nitrogen availability could influence strain competition ability during ...
Beltran, Gemma   +5 more
core   +1 more source

Can N-oxidation alleviate the energy-safety contradiction of energetic materials?

open access: yesFirePhysChem, 2021
The introduction of the N-oxide functional group to the heterocyclic structure is deemed as an effective strategy to construct highly energetic and lowly sensitive materials.
Yilin Cao   +4 more
doaj  

Enhancing Sorghum Productivity with Methyur, Kamethur, and Ivin Plant Growth Regulators

open access: yesBiology and Life Sciences Forum, 2023
Sorghum is one of the most important foods, fodder, and technical crops grown in the world. Global climate change and environmental pollution with toxic industrial and agricultural waste are the most unfavorable environmental factors affecting the growth
Victoria Anatolyivna Tsygankova   +4 more
doaj   +1 more source

A Review on Recent Advances in Nitrogen-Containing Molecules and Their Biological Applications

open access: yesMolecules, 2020
The analogs of nitrogen-based heterocycles occupy an exclusive position as a valuable source of therapeutic agents in medicinal chemistry. More than 75% of drugs approved by the FDA and currently available in the market are nitrogen-containing ...
Nagaraju Kerru   +4 more
semanticscholar   +1 more source

Ionized Nitrogen Mono-hydride Bands are Identified in the Pre-solar and Carbonado Diamond Spectra

open access: yes, 2011
None of the well established Nitrogen related IR absorption bands, common in synthetic and terrestrial diamonds, have been identified in the pre-solar diamond spectra.
Adams   +33 more
core   +1 more source

RNA-Seq study reveals genetic responses of diverse wild soybean accessions to increased ozone levels

open access: yesBMC Genomics, 2017
Background Ozone is an air pollutant widely known to cause a decrease in productivity in many plant species, including soybean (Glycine max (L.) Merr).
Nathan Waldeck   +5 more
doaj   +1 more source

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