The toxicity of all atomically stable metals in the periodic table, excluding Na, Mg, K, and Ca, was measured in one-week exposures using the freshwater amphipod Hyalella azteca in both Lake Ontario, Canada, and soft water (10% Lake Ontario). Metals were added as atomic absorption standards (63 metals), and also as anion salts for 10 metals. Lethal concentrations resulting in 50% mortality (LC5...

OBJECTIVE The purpose of this study was to systematically characterize individuals with short root anomaly (SRA) without any history of orthodontic treatment. The long-term objective of the study was to improve diagnosis and treatment planning and determine risk factors for developing SRA. SETTING AND SAMPLE POPULATION Twenty-seven patients including two families and 16 unrelated individuals ...

background: khat chewing is popular among yemenis. this study was performed to investigate the effects of khat chewing on periodontal tissue and oral hygiene status. methods: a total of 730 subjects (336 chewers and 394 non-chewers with a mean age of 31.5 ± 0.8 and 29.4 ± 0.9 years, respectively) were involved. clinical data on periodontal tissues, oral hygiene status, gingival bleeding, burnin...

The occurrence of Hg, Cu, Cr, Cd, Pb, and Zn in green mussels ( Perna viridis Linnaeus, 1758) collected along the East Java Coast (EJC), Indonesia, is reported this study. Cu>Zn>Pb>Cr>Cd>Hg was sequence metal concentrations mussel whole tissues. Green tissues at several locations EJC accumulated Cd Pb levels that exceed recommended level for consumer provisional weekly tolerable intake (PTWI). ...

The rat mitochondrial proteome was analyzed using two-dimensional polyacrylamide gel electrophoresis (2-D PAGE), and proteins altered by age or caloric restriction (CR) were identified using mass spectrometry. Of 2061 mitochondrial proteins analyzed in the three tissues, a significant change with age occurred in 25 liver proteins (19 increased, 6 decreased), 3 heart proteins (1 increased, 2 dec...

although rare, synovial sarcoma is the most common malignant non-rhabdomyosarcomatous soft tissue sarcoma in children and adolescents. synovial sarcoma typically involves the soft tissues of the extremities, especially near large joints, but it can occur anywhere in the body in locations far from joint spaces. although this tumor typically affects adults in their fourth decade of life, nearly h...

Introduction: Nano-indentation has recently been employed as a powerful tool for determining the mechanical properties of biological tissues on nano and micro scales. A majority of soft biological tissues such as ligaments and tendons exhibit viscoelastic or time-dependent behaviors. The constitutive characterization of soft tissues is among very important subjects in clinical medicine and espe...