Cover cropping is mainly used to prevent soil erosion, but the effects of individual cover crops on subsequent soybean [Glycine max (L.) Merr.] are hardly known. Therefore, two annual field trials with 15 crop species and bare fallow as control were conducted in semi-arid East Austria 2016 2017. sown July 3- × 10-m plots a randomized block design three replicates incorporated mid-April before s...

By ROBERT C. BRAY and STEPHEN A. COCKLE School ofMolecular Sciences, University ofSussex, Falmer, Brighton BN1 9QJ, Sussex, U.K. and E. MARTIN FIELDEN and PETER B. ROBERTS Division ofPhysics, Institute of Cancer Research, Clifton Avenue, Sutton, Surrey, U.K. and GIUSEPPE ROTILIO and LILIA CALABRESE Centro di Biological Molecolare del C.N. R., Istituto di Chimica Biologica, Universita di Roma, R...

this study aimed to investigate the effects of stiffeners on buckling of thin cylindrical shells under uniform axial compression. to this end, more than 300 finite element models of stiffened cylindrical shells were prepared. the variables considered are shell thickness, number, dimension and the location of the vertical and horizontal stiffeners as well as circular symmetrical imperfections. r...

An extensive study on Se accumulation in a population of Anadara trapezia from a marine lake is reported. The effects of organism mass, gender, reproductive cycle, and season on Se accumulation and tissue distribution were investigated. Analyses showed that gender and reproductive cycle had no significant effect on Se accumulation. A. trapezia showed a strong positive correlation between Se bur...

December 2006 | Volume 4 | Issue 12 | e418 Most governments around the world set conservation policy based on the assumption that resource exploitation and species protection can co-exist in the same place. These policies have led to Orwellian “marine protected areas” that host commercial fi shing operations, leading one to wonder who’s protecting whom. A new study reveals the danger of this ap...

December 2006 | Volume 4 | Issue 12 | e418 Most governments around the world set conservation policy based on the assumption that resource exploitation and species protection can co-exist in the same place. These policies have led to Orwellian “marine protected areas” that host commercial fi shing operations, leading one to wonder who’s protecting whom. A new study reveals the danger of this ap...

December 2006 | Volume 4 | Issue 12 | e418 Most governments around the world set conservation policy based on the assumption that resource exploitation and species protection can co-exist in the same place. These policies have led to Orwellian “marine protected areas” that host commercial fi shing operations, leading one to wonder who’s protecting whom. A new study reveals the danger of this ap...

Picture credits: Close up photographs of mussels and cockles on the back cover courtesy of the Eastern Sea Fisheries Joint Committee. All other photographs, CEFAS. Introduction 1. Since 1970, previously artisanal fisheries for cockles and mussels in The Wash have been transformed by the rapid introduction of more powerful fishing gears and vessels and the modernisation of processing plant to se...

Consumption of seafoods containing radioactive elements is one of the main sources of natural radiation exposure. Therefore many countries and international organizations are concern about the safe consumption of marine food species. The present study investigated the accumulation pattern of Po-210 in marine cockle (Anadara granosa) collected from a cola burning power plant area. The study reve...