Purpose Malignant tumors are acidic. The extracellular pH of tumors ranges from 6.5-6.9 versus 7.2-7.4 in normal tissue. Acid-producing tumors are more invasive and exhibit a greater metastatic potential. Tumor acidity is toxic to the surrounding tissue, induces the breakdown of the basement membrane around the tumor, and increases expression and activity of metastatic effectors. Therefore, it ...

In a previous paper (1) we discussed the relation of degree of gastric acidity of people without organic disease of the stomach to physical fitness, age, and other factors. It was shown that acidity tends to decrease with advancing years and that people in poor general physical condition, on the whole, have a less acid stomach juice than those who are fit. The present report deals with a simila...

One can mention the importance of the other 13 group elements (triel elements), aluminium, gallium, indium and thallium. For example, aluminium is the second-most used metal after steel, largely because it is so versatile while nearly all gallium is used today in electronics. Numerous advantageous properties of triel elements are a consequence of the acidity of their compounds – the triel centr...

ISSN: 2410-9649 Bourjila et al / Chemistry International 2(3) (2016) 145-157 iscientic.org. 146 www.bosaljournals/chemint/ [email protected] Several factors may influence the convergence of these polypeptides towards the equilibrium structures, the diversity and the multiplication in dihedral angles (HSCC, HNCC, OCCN, HNCO, CNCC, CCNC,...) vary and depends upon the nature of S,O and N ...

I'HE patient who complains of abdominal pain related to food is often referred for an X-ray examination. Among other things, the barium meal will show the rate of emptying of the stomaclh. In some there will be no delay, but in others there will be retention of barium in the stomach six hours after the meal. A few cases of this nature have been collected, in which fractionial test-meals were al...