Knowledge of the effects of experimental pulmonary disease on pulmonary function has bearing on the effects of various human diseases on pulmonary function I n addition, information about reserves of pulmonary function present in normal animals and the types of functional limitation that occur under various conditions may be related to human disease. For the purpose of this review, pulmonary fu...

1. The very large increase in catalase activity (Euler effect) which follows treatment of yeast cells with CHCl(3), UV and n-propanol is accompanied by highly significant changes in kinetic properties. With respect to the enzymatic decomposition of H(2)O(2), the thermodynamic constants of the activation process micro, DeltaHdouble dagger, DeltaSdouble dagger, DeltaFdouble dagger, decrease, foll...

In the early stages of an investigation of the factors underlying the swelling (edema) of the brain in acute infections or injuries, attention was directed to the possible relationship between the volume of the brain and the alteration in the pressure of the cerebra-spinal fluid, following intravenous injections of solutions of various concentrations (1). For in the study of cerebral edema, but...

There is great controversy as to whether alteration of the p53 gene adversely affects survival of non-small cell lung cancer patients. The aim of this study was to qualitatively review the association between p53 alterations and patient outcome by reviewing published papers. Forty-three articles were used. Survival difference was combined by use of the DerSimonian-Laird method. p53 alteration w...

In a case of neuroblastoma the presence of an abnormal blood constituent was suspected from the raised erythrocyte sedimentation rate, sludging of the red cells, marked rouleaux formation, an atypical Leishman stain, increased plasma viscosity, and a distorted protein electrophoresis pattern. The abnormal constituent was shown to be a mucopolysaccharide which was either hyaluronic acid or chond...

Star clusters are formed in molecular clouds which are believed to be the birth places of most stars. From recent observational data, Lada & Lada (2003) estimated that only 4% to 7% of the clusters embedded inside molecular clouds have survived. An important mechanism for the disruption of embedded (bound)-clusters is the dispersion of the parent cloud by UV radiation, stellar winds and/or supe...

BACKGROUND The etiology of inguinal hernias remains uncertain even though the lifetime risk of developing an inguinal hernia is 27% for men and 3% for women. The aim was to summarize the evidence on hernia etiology, with focus on differences between lateral and medial hernias. RESULTS Lateral and medial hernias seem to have common as well as different etiologies. A patent processus vaginalis ...

Regular, in-service inspection is important to verify the integrity of welded nozzle sections in the nuclear industry. Nozzle sections are susceptible to crack growth due to thermal fatigue and stress corrosion. Early detection of cracks is therefore essential to ensure the continued safe operation of the facility. The aim of this project is to design an inspection system that is capable of red...

Recent studies have shown that endurance overtraining could result from successive and cumulative alterations in metabolism, which become chronic during training. The onset of this process is a biochemical alteration in carbohydrate (saccharide) metabolism. During endurance exercises, the amount of saccharide chains from two blood glycoproteins (a2-macroglobulin and aI-acid glycoprotein) was fo...