Aglomerularism in Antarctic fish

Urine formation in antarctic bony fish does not involve glomerular filtration. Evidence for aglomerularism came from both direct observation of kidney serial sections by light microscopy and the low concentrations of inulin labeled with carbon-14 that were excreted into the urine when this renal clearance tracer was injected into the bloodstream via a cannula implanted in the caudal vein. Aglomerularism most likely prevents urinary loss of glycoproteins with biological antifreeze properties.

Sex similarity in personality correlates of test anxiety

Sex differences in correlation coefficients between the California Psychological Inventory, Sixteen Personality Factor Questionnaire scales and Alpert-Haber Achievement Anxiety Test scales were evaluated in four samples of Ss in French (54 males and 156 females), mathematics (124 males and 66 females), and two introductory psychology courses (81 males and 146 females in the first sample and 297 males and 349 females in the second sample). The fact that fewer than 7% of differences were significant at the 5% level in 216 pair-wise comparisons and there were significant correlations between correlation matrices seems to indicate the lack of sex differences in personality correlates of test anxiety.