Tissue metal concentrations and antioxidant enzyme activity in western north Atlantic white sharks (Carcharodon carcharias).

Anthropogenic practices have increased metal contamination in marine ecosystems. Most sharks have long lifespans, occupy an important ecological position at the top of marine food webs, and can accumulate metals. However, reference levels of metal contaminants in the tissues of sharks, particularly, apex predators such as the white shark (Carcharodon carcharias), are lacking.

The relationship between job stress and patient safety culture among nurses: a systematic review.

Background: Work stress is one of the leading causes of physical and mental problems among nurses and can affect patient safety. Nurses experiencing stress are more prone to make errors, which has consequences for the safety culture. This study aimed to describe the findings of studies that examined the relationship between job stress and patient safety culture among nurses.

Metal analysis of submerged aquatic vegetation in the lower St. Johns River, Florida.

The St. Johns River, Florida's longest river, is threatened by a variety of factors, including anthropogenic disturbances and global climate changes. Metal pollution in the Lower St.

Determinants of variability in signature whistles of the Mediterranean common bottlenose dolphin.

One of the most studied aspects of animal communication is the acoustic repertoire difference between populations of the same species. While numerous studies have investigated the variability of bottlenose dolphin whistles between populations, very few studies have focused on the signature whistles alone and the factors underlying differentiation of signature whistles are still poorly understood. Here we describe the signature whistles produced by six distinct geographical units of the common bottlenose dolphin (Tursiops truncatus) in the Mediterranean Sea and identify the main determinants of their variability.

The impact of masculinity stress on preferences and willingness-to-pay for red meat.

This work explores the effects of masculinity stress-distress arising from a perceived discrepancy with male gender norms-on red meat consumption, which has potentially substantial individual, collective, and ecological consequences. Across three studies, we demonstrate a positive indirect effect of masculinity stress on red meat consumption. This occurs through beliefs that meat consumption can augment masculinity-an effect which is moderated by one's self-assessed traditional masculinity (study 1).

Comparative metal analysis in a species assemblage of mammals from the Southeastern United States.

Metal pollution commonly occurs in many terrestrial environments and may pose a threat for the animals inhabiting such areas. Here, we present concentrations of six metals (cadmium [Cd], copper [Cu], nickel [Ni], lead [Pb], selenium [Se], and zinc [Zn]) in the liver tissues of seven species of mammals obtained from a study that examined the impact of mesopredator removal on northern bobwhite (Colinus virginianus) populations. A total of 1326 samples were collected from 2003 to 2006 at four sites in southwest Georgia and north Florida from nine-banded armadillos (Dasypus novemcinctus), bobcats (Lynx rufus), feral cats (Felis catus), coyotes (Canis latrans), grey foxes (Urocyon cinereoargenteus), opossums (Didelphis virginiana), and raccoons (Procyon lotor).

Metabolic testing does not alter distance running lower body sagittal kinematics.

Background: Distance running fitness is commonly assessed using metabolic testing (MT). During MT, the runner must wear a mask that covers the nose and mouth. It is unclear if this increased challenge alters running kinematics and/or stride-to-stride variability (SSV).

Developing reliable measures of the passive torque-angle relationship for shoulder internal and external rotation: Implications for overhead athletics.

Objectives: 1) Thoroughly assess shoulder flexibility by establishing the passive torque-angle relationship for internal and external rotation with the arm in an overhead athletics position (abducted 90°) and 2) test the reliability of four passive torque-angle measures.

Design: Reliability study.

Setting: Data were collected in a university biomechanics laboratory.

Metal accumulation in bobcats in the Southeastern USA.

Bobcats (Lynx rufus) are wide-ranging mammals found throughout the continental USA. As carnivores near the top of their food chain, bobcats would seem to be a useful bioindicator of metal pollution in terrestrial environments. However, there is very limited research on bobcats in toxicology studies.