Background: The rejected films in radiography may be responsible for an unnecessary increase in the radiation dose to the population. The effective dose to population is a very important factor in estimation of stochastic risk in radiology. The main goal of this study was to determine the effective dose to members of the public due to rejected films in diagnostic radiology departments in the No...

This contribution documents widespread trawling damage to cold-water coral reefs at 840-1300 m depth along the West Ireland continental shelf break and at 200 m off West Norway. These reefs are spectacular but poorly known. By-catches from commercial trawls for deep-water fish off West Ireland included large pieces (up to 1 m(2)) of coral that had been broken from reefs and a diverse array of c...

Little is known about the basic biology of deep-water coral species. In this study, we experimentally assessed the rates of ingestion of Artemia salina adults and nauplii by the 4 Mediterranean cold water coral species Dendrophyllia cornigera, Desmophyllum cristagalli, Madrepora oculata, and Lophelia pertusa. All species ingested A. salina in adult and nauplii forms. L. pertusa showed the highe...

Mammalian sperm contain the serine/threonine phosphatases PP1γ2 and PP2A. The role of sperm PP1γ2 is relatively well studied. Here we confirm the presence of PP2A in sperm and show that it undergoes marked changes in methylation (leucine 309), tyrosine phosphorylation (tyrosine 307) and catalytic activity during epididymal sperm maturation. Spermatozoa isolated from proximal caput, distal caput...

background : ascaridia galli , the largest nematode of small intestine of birds, especially the native poultry, may give rise to serious illness, pathological defects and economical losses even in modern poultry production systems. although various measures have been undertaken to vaccinate poultry against a.galli , no satisfactory results were obtained so far. however, there is no report on th...

Behavioral changes resembling human athetoid and choreiform hyperkinesias were produced b y unilateral injections of L-3,4-dihydroxyphenylalanine (l-D O P A ), dopamine, 3-m ethoxy-tyram ine and dexamphetamine into the rostromedial part of the caput caudati o f ca ts; saline, noradrenaline and 3,4 -dihydroxyphenylacetio acid were ineffective. Pretreatment with the tyrosine hydroxylase inhibitor...