1. Some empirical and theoretical studies suggest that more mobile species are less at risk in human-altered landscapes, while others suggest the opposite. 2. We propose three novel hypotheses to explain these contradictory findings: (i) extinction risk increases with increasing mobility when mobility is measured as emigration, but decreases with increasing mobility when mobility is measured as...

Changes in the skin that occur in the elderly may put them at increased risk for altered percutaneous penetration from pharmacotherapy along with potential adverse effects. Skin factors that may have a role in age-related percutaneous penetration include blood flow, pH, skin thickness, hair and pore density, and the content and structure of proteins, glycosaminoglycans (GAGs), water, and lipids...

Corrugator supercilii muscle activity is considered an objective measure of valence because it increases in response to negatively valenced facial expressions (angry) and decreases to positive expressions (happy). The authors sought to determine if corrugator activity could be used as an objective measure of positivity-negativity bias. The authors recorded corrugator responses as participants r...

Phosphorylation of purified phospholamban isolated from canine cardiac sarcoplasmic reticulum vesicles decreased the electrophoretic mobility of the protein in sodium dodecyl sulfate (SDS)-polyacrylamide gels. Different mobility forms of phospholamban in SDS gels were visualized both by direct protein staining and by autoradiography. Unphosphorylated phospholamban migrated with an apparent Mr =...

Desire spurs competition; here we explore whether the converse is also true. In one study, female quartets (N1⁄4 58) completed anagrams, with the winner to receive compact speakers; controls anagrammed without competition. In the other study, female quartets (N1⁄4 74) described their ideal first date to a male judge, who chose the best description; controls read to him others’ date descriptions...

abstract different factors such as the quality of ova and sperm are involved in propagation process. mobility percentage, ph, mobility duration, compaction and osmolarity of sperm which affect the quality of sperm were tested in this research. this study was carried out in april 2011 in shahid ansari bony fishes propagation and rearing center. according to the results, mean and standard deviati...

Our previous study demonstrated that a large-conductance Ca2+-activated K+ current (BKCa), a voltage-gated TTX-sensitive sodium current (INa.TTX), and an inward rectifier K+ current (IKir) were heterogeneously present in most of human cardiac c-kit+ progenitor cells. The present study was designed to investigate the effects of these ion channels on cell cycling progression and migration of huma...

The effect of diabetes on the structure and function of insulin receptors was studied in rats 7 d after streptozotocin injection, using solubilized, partially purified receptors from rat hindlimb muscles. Diabetes increased the number of insulin receptors per gram of muscle 60-70% without apparent change in insulin binding affinity. Incubation of receptors at 4 degrees C with [gamma-32P]ATP and...

OBJECTIVE To study associations between pain, trunk muscle strength, flexibility and disability in patients with lumbar disc herniation 2 months after surgery. DESIGN Clinical cross-sectional survey. PARTICIPANTS 172 operated lumbar disc herniation patients. METHODS Back and leg pain on Visual Analogue Scale, Oswestry Disability Index and Brief Depression Scale were applied to assess the ...