Introduction: Application of organic fertilizers in agricultural soils with low organic matter content is one of the best ways of nutrientsaddition to these soils.Different organic fertilizers have different effects on nutrient availability in soil.Moreover study of the distribution of nutrients in the soil allows investigating their mobility and b
It has often been argued that countries that produce natural resources mobilize less non-resource tax revenues than other countries.In this paper, we exploit the exogenous variation in the timing of giant oilfield discoveries to estimate the causal impact of natural resources on taxation.The timing of giant oilfield discoveries is arguably exogenou
Healthcare systems are complex systems that need effective and efficient operations, optimizations, management, and control to offer reliable, high-quality, and cost-effective healthcare services.There are different approaches to improve the kiara sky allure management of healthcare systems including utilizing the healthcare systems engineering pri
This paper reviews the manufacturing difficulties of decimal quantum resistor arrays and their applications and prospects in electrical metrology standardization.By analyzing the core principles of the quantum Hall effect, the advantages and differences of gallium arsenide (GaAs) and graphene in quantum resistor arrays are discussed.This paper summ