Results 51 to 60 of about 3,709,934 (206)

Comparative Performance of Integrated Nutrient Management between Composted Agricultural Wastes, Chemical Fertilizers, and Biofertilizers in Improving Soil Quantitative and Qualitative Properties and Crop Yields under Arid Conditions

open access: yesAgronomy, 2020
The primary goal of integrated nutrient management (INM) strategies is to substitute a portion of chemical fertilizers with a more sustainable and environmentally safe organic compost in order to mitigate soil degradation, improve crop production, and ...
Nasser Al-Suhaibani   +3 more
doaj   +1 more source

Efficient droplet activation of ambient black carbon particles in a suburban environment [PDF]

open access: yesAtmospheric Chemistry and Physics
The cloud condensation nuclei (CCN) activity of black carbon (BC) particles importantly determines their impacts on cloud microphysics and atmospheric lifetime.
P. Tian   +15 more
doaj   +1 more source

PAY-AS-YOU-SPEED: AN ECONOMIC FIELD-EXPERIMENT [PDF]

open access: yes
We report a vehicle-fleet experiment with an economic incentive given to car drivers for keeping within speed limits. A pay-as-you-speed traffic insurance scheme was simulated with a monthly participation bonus that was reduced by a non-linear speeding ...
Hultkrantz, Lars, Lindberg, Gunnar
core  

Reciprocity and status in a virtual field experiment [PDF]

open access: yes
This article reports on a field study that has been conducted in the online computer game World of Warcraft. In a basic labor situation a principal gives an upfront wage to an agent (who is unaware that he is participating in an experiment) and asks him ...
Andreas Nicklisch, Tobias Salz
core  

Magnetic field experiment for Voyagers 1 and 2 [PDF]

open access: yes
The magnetic field experiment to be carried on the Voyager 1 and 2 missions consists of dual low field (LFM) and high field magnetometer (HFM) systems. The dual systems provide greater reliability and, in the case of the LFM's, permit the separation of ...
Aluna, M. H.   +5 more
core   +1 more source

Dynamic Kerr effect responses in the Terahertz-range

open access: yes, 2005
Dynamic Kerr effect measurements provide a simple realization of a nonlinear experiment. We propose a field-off experiment where an electric field of one or several sinusoidal cycles is applied to a sample in thermal equilibrium.
Gregor Diezemann   +5 more
core   +2 more sources

Spatial and Temporal Distribution Characteristics of AOD and Influence of Meteorological Factors in Qaidam Basin

open access: yesGaoyuan qixiang
Based on the MODIS MCD19A2 aerosol dataset, the temporal and spatial distribution characteristics of the atmospheric aerosol optical thickness (AOD) and the influence of meteorological factors in the Qaidam Basin from 2001 to 2021 were investigated by ...
Hongdan XIAO   +4 more
doaj   +1 more source

Impact of florpyrauxifen-benzyl on hybrid rice seeded at different densities

open access: yesWeed Technology
Florpyrauxifen-benzyl is a postemergence rice herbicide that has reduced rice yield in some situations, and producers are concerned that the impact could be even greater with low rice seeding densities. Therefore, research was conducted in Stoneville, MS,
Thomas W. Eubank   +6 more
doaj   +1 more source

Free Riding in the Lab and in the Field [PDF]

open access: yes
We run a public good experiment in the field and in the lab with (partly) the same subjects. The field experiment is a true natural field experiment as subjects do not know that they are exposed to an experimental variation.
Englmaier, Florian, Gebhardt, Georg
core  

From the lab to the field: envelopes, dictators and manners [PDF]

open access: yes
Results are reported of the first natural field experiment on the dictator game, where subjects are unaware that they participate in an experiment. In contrast to predictions of the standard economic model, dictators show a large degree of pro-social ...
Stoop, Jan
core   +1 more source

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