A number of indicators and signals that lend themselves to monitoring by remote-sensing satellites provide a warning of land degradation. These include loss of vegetative cover, wind and water erosion, soil salinization, deterioration of the soil structure, drier soil, increased reflectance, higher land surface temperatures, and changes in land cover type. But because soil and vegetation change...

Patients with 'persistent vegetative state' (PVS) are often cited in the discussions of ethicists as examples of human beings who are unconscious and do not experience life, and a number of theoretical and practical recommendations have been made on that basis. This article examines the evidence and the theoretical rationale for the belief that people with PVS are unconscious and finds them wan...

b) It was shown that the prepared derivatives distinctly put a stop to the postgerminal development of spores and the vegetative growth of Bacillus cereus 8. Chemical investigation, as well as biological testing of the prepared derivatives is continued. It can be assumed that the easy method of preparation described here will also be useful in the case of other basic peptides possessing antibio...

Over the last several decades, warming in the Arctic has outpaced the already impressive increases in global mean temperatures. The impact of these increases in temperature has been observed in a multitude of ecological changes in North American tundra including changes in vegetative cover, depth of active layer, and surface water extent. The low topographic relief and continuous permafrost cre...

The paper investigates the value of using distinct vegetation indices to quantify and characterize agricultural crop characteristics at different growth stages. Research was conducted on four crops (corn, soybean, wheat, and canola) over eight years grown under different tillage practices and nitrogen management practices that varied rate and timing. Six different vegetation indices were found ...