For his Second Labor, Heracles was tasked with slaying the Hydra, a serpentine monster from ancient Greek mythology who possessed many heads. When attempted to decapitate monster, two new heads grew in place of each severed head, an expression hopelessness such struggle for anyone but hero. The invulnerability Hydra because its one immortal head. Once head cut off, defeated, and Heracles' secon...

61] In addition to conventional measurement microphones, dummy heads are more and more used for physical as well as subjective noise evaluation. Within the DIN, a study group (A2 AK8) was formed, analyzing features of commercially available dummy heads. It was found that mainly because of geometrically different shells, different dummy heads produce different sound images. In practical applicat...

In this study, we investigated the feasibility and safety of intravenous transplantation of allogeneic bone marrow mesenchymal stem cells (MSCs) for femoral head repair, and observed the migration and distribution of MSCs in hosts. MSCs were labeled with green fluorescent protein (GFP) in vitro and injected into nude mice via vena caudalis, and the distribution of MSCs was dynamically monitored...

We have compared the antagonism of neuromuscular block produced by pipecuronium with pancuronium in 80 anaesthetized surgical patients using mechanomyography and electromyography. Pancuronium 0.1 mg kg-1 or pipecuronium 0.07 mg kg-1 was given after induction of anaesthesia and neuromuscular block was adjusted to 75% twitch depression at the time of antagonism. The following regimens were used: ...

Muscle contraction results from cyclic attachment and detachment between myosin heads and actin filaments, coupled with ATP hydrolysis. Despite extensive studies, however, the amplitude of myosin head power stroke still remains to be a mystery. Using the gas environmental chamber, we have succeeded in recording the power stroke of position-marked myosin heads in hydrated mixture of actin and my...

Introduction The use of large cobalt chrome femoral heads reduces dislocation and increases the range of motion. However, failure of large head metal on metal hip replacements (LHMMHR) has recently been identified and is believed to be associated with the high torque at the interface of standard modular taper junction leading to fretting and corrosion. Compared with standard 28 mm heads the rel...

Anatomical variations of the biceps brachii have been described by various authors, but the occurrence of bilateral asymmetric supernumerary heads is rare and has not been reported. We found three accessory heads of the biceps brachii muscle on right arm and an anomalous third head of biceps brachii on left arm. The third, fourth, and fifth heads of right arm originated from the body of humerus...

PURPOSE To compare the costs of femoral head banking versus bone substitutes. METHODS Records of femoral head banking from 1998 to 2008 were reviewed. The cost of allogenic cancellous bone graft was calculated by estimating the direct expenditure of femoral head procurement, screening tests, and storage, and then divided by the amount of bone harvested. RESULTS 326 females and 141 males (me...