Effects of acetaminophen in oxidative stress and neurotoxicity biomarkers of the gastropod Phorcus lineatus

Environmental Science and Pollution Research - The growing use of pharmaceutical drugs has become a major environmental issue considering that these substances (or their metabolites) end up...     

Effects of paracetamol on the polychaete Hediste diversicolor: occurrence of oxidative stress,cyclooxygenase inhibition and behavioural alterations

Environmental Science and Pollution Research - Pharmaceuticals are significant environmental stressors, since they are utilized around the world; they are usually released in to the aquatic system...     

Impact of ocean warming on the early ontogeny of cephalopods: a metabolic approach

The impact of a realistic warming scenario on the metabolic physiology of early cephalopod (squid Loligo vulgaris and cuttlefish Sepia officinalis) life stages was investigated. During exposure to the warming conditions (19 °C for the western coast of Portugal in 2100), the increase in oxygen consumption rates throughout embryogenesis was much steeper in squid (28-fold increase) than in cuttlefish (11-fold increase). The elevated catabolic activity–accelerated oxygen depletion within egg capsules, which exacerbated metabolic suppression toward the end of embryogenesis. Squid late-stage embryos appear to be more impacted by warming via metabolic suppression than cuttlefish embryos. At all temperature scenarios, the transition from encapsulated embryos to planktonic paralarvae implied metabolic increments higher than 100 %. Contrary to the nektobenthic strategy of cuttlefish newborns, the planktonic squid paralarvae rely predominantly on pulsed jet locomotion that dramatically increases their energy requirements. In the future, hatchlings will require more food per unit body size and, thus, feeding intake success will be crucial, especially for squid with high metabolic rates and low levels of metabolic reserves.     

They don't want to be temporaries: similarities between temps and core workers

This study investigated the impact of employment status (temporary/regular) on the employee–organization relationship in samples from two firms employing both temps (n = 234) and regular or core (n = 204) workers. Temps and regular workers held similar beliefs regarding the nature of their employment relationship. However, among those temps for whom temporary work was their preferred status, the employment relationship was less socioemotional and more economic than was the case for other workers. When these temps preferred regular employment, their relationships were high socioemotional and low economic, comparable with that of core workers. A employee–organization relationship high on socioemotional terms was positively related to satisfaction with the organization, an attitude which in turn mediated the relationship between employment relationship and employees' performance and civic virtue behaviors (behaviors as assessed by their supervisors). Copyright © 2007 John Wiley & Sons, Ltd.