This paper decomposes the Malmquist productivity index into several assembling components: technical change (further break down into technical change magnitude, input bias and output bias), technical efficiency change, scale efficiency change, and output-mix effect. A translog output distance function is chosen to represent the production technology and each component of the Malmquist index is ...

Remote sensing; GIS; Tourism; Land cover classification Abstract The Jesenı́ky Mountains tourism in Czech Republic is unique for its floristic richness. This is caused mainly by the altitude division and polymorphism of the landscape, climate and soil structure. This study assesses the impacts of tourism on the land cover in the Jesenı́ky Mountain region by comparing multi-temporal Landsat imager...

Agricultural policy reform has been an important source of change in the Chinese agricultural sector. The reforms led to productivity growth and helped China in pursuing its self-sufficiency goal especially in the grain sector. To analyse whether observable productivity growth stems from technologically induced components, or from the market induced parts, a multi-input-multi-output model is de...

In order to further improve the accuracy of distance measurement agricultural robots and realize precise delivery crop feeds, thereby increasing yield crops, this paper proposed a ultrasonic system for based on Complex Programmable Logic Device (CPLD). The mainly included two parts: hardware software. part CPLD control part, sensor temperature sensor. software identification counting signals, d...

Currently proliferating alternative action organizations, such as food cooperatives, solidary agriculture, repair cafes, or DIY initiatives, pursue social transformation at a deliberate distance fr...

Bacteria produce and excrete a versatile and dynamic suit of compounds to defend against microbial competitors and mediate local population dynamics. These include a wide range of broad-spectrum non-ribosomally synthesized antibiotics, lytic enzymes, metabolic by-products, proteinaceous exotoxins, and ribosomally produced antimicrobial peptides (bacteriocins). Most bacteria produce at least one...