Long-term tillage negatively affects soil aggregation, but little is known about the short-term effects of tillage. We investigated the effects of intensive tillage (moldboard plowing) and conservation tillage (chisel plowing) on aggregate breakage during tillage in a long-term study located in the semiarid Ebro river valley (NE Spain). The type of tillage resulted in different soil aggregate d...

and delivering lectures for Abbott, Pfizer, MSD, Janssen-Cilag, Leo, and Basilea and does consultancy for Merck and Novartis; MHB is employed by SIGN; JL was paid to attend one Abbott Advisory Board meeting and to deliver postgraduate education by Leo, has received meeting expenses from Pfizer, and has undertaken trials funded by Janssen-Cilag, Merck, Serono, Schering-Plough, Abbott, and Pfizer...

A patient who recently came under my care had been struck in the right eye by a foreign body whilst hammering a piece of steel with hammer and cold chisel. A diagnosis of intra-ocular foreign body was made, there being a small entrance wound in the centre of the cornea and an opaque lens. This diagnosis was confirmed by x ray. The foreign body, measuring about 3j x 1 x 1 mm. was located in the ...

In cold climates, snowmelt runoff often exceeds rainfall runoff during the year. Conservation tillage practices may be effective in reducing runoff during the cropping season but not during the snowmelt period. A plot study was conducted on a cropped hillslope to assess how tillage practices affect snowmelt runoff and the associated losses of sediment, phosphorus (P), and chemical oxygen demand...