user: Indicate the presence of numerical data in the abstract (whether numerical data plays a key role in medical records), solely using the information from the abstract.

Q: Abstract: We assessed in ponies the adequacy of using rectal (Tre) rather than arterial temperature (Tar) under conditions common to ventilatory control experiments, i.e., CO2 breathing, thermal stress, and particularly exercise. We were interested in whether, and to what extent, Tar-Tre differences could lead to errors in arterial blood gas corrections. At control environmental temperatures (Ta) of 5 degrees C in the winter and 21 degrees C in the summer, Tar and Tre (37.1 degrees C) did not differ (P greater than 0.05). Elevating winter or summer Ta by 10-18 degrees C for 2-days or lowering summer Ta by 9 degrees C (2-days) did not change Tar or Tre (P greater than 0.05). Furthermore, elevating inspired PCO2 to 42 Torr for 15 min did not alter Tar or Tre from control (P greater than 0.05). During treadmill exercise, at 1.8 mph 5% grade, Tar and Tre did not change significantly (P greater than 0.05) from rest by 11 min of work. At 3 mph 5% grade, Tar increased progressively by 0.3 degrees C (P less than 0.05) while Tre tended to increase 0.1 degree C by 11 min. During moderate exercise at 6 mph 5% grade, Tar increased 0.9 degree C (P less than 0.05) while Tre increased 0.25 degree C (P less than 0.05). Finally, by 6 min of heavy exercise at 8 mph 20% grade, Tar increased 2 degrees C (P less than 0.05) while Tre increased 0.5 degree C (P less than 0.05). The Tar-Tre differences during the latter three work loads were statistically significant (P less than 0.01).(ABSTRACT TRUNCATED AT 250 WORDS) 
Question: Does the abstract contain any numerical data?

A: Yes
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Q: Abstract: Published normal histomorphometric data were used to derive distributions of thicknesses of trabecular plates and completed bone remodelling units (the basic multicellular unit carrying out bone remodelling, the BMU, when completed is termed a structural unit BSU). A stochastic model was set up to investigate the predictions of current BMU theory. Each of 100 trabecular "thicknesses" was drawn from the appropriate normal distribution using a pseudorandom number generator. Each day, each of its two surfaces when quiescent was assumed to have a 1:900 chance of initiating a remodelling cycle. Resorption (active, 12 days; reversal phase, 27 days) was followed by formation (94 +/- 35 days) and resulted in BMU balance when resorption depth was 36.8 +/- 9.2 micron. Fenestration (thickness less than 0) was assumed to lead to permanent loss of the trabecula. The original model unrealistically increased its mean trabecular thickness as thin trabeculae were lost. This was corrected by assuming that thin trabeculae had greater osteoblastic stimulation and a consequent tendency to thicken, perhaps due to higher mechanical loading. Over 20 years, 14% of trabeculae were lost when the BMU balance was exact and the distribution of trabecular thicknesses was unchanged. About one-half of fenestrations were due to deeper-than-average resorption cavities developing in thin trabeculae, and the remainder to coincident remodelling on both surfaces. A 10% fall in osteoblast lifespan resulted in an additional 36.7% loss of trabecular bone volume and mean trabecular thickness fell to 83.1 micron, compatible with Courpron's data. Simulating more rapid mechanisms of bone loss, approximately 50% of trabeculae could be lost after ten years by the arrest of bone formation; the doubling of resorption depth with unchanged bone formation; and a doubling in the rate of initiation of new BMUs with unchanged bone formation rate, all three followed by complete recovery of BMU balance after only two years. In each case, mean trabecular thickness fell only transiently but trabeculae continued to be lost after recovery. Prolonged osteoblast life span was the most likely explanation for the increased mean trabecular thicknesses and trabecular bone volumes seen in patients with osteoporosis, when treated with sodium fluoride plus calcium supplements or daily injections of parathyroid peptide hPTH 1-34. 
Question: Does the abstract contain any numerical data?

A: Yes
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Q: Abstract: Trace metal ratios in human bones were examined to determine if there were ratios that were sufficiently consistent within an individual yet varying sufficiently from the bones of another individual so that bones in a mixed grave could be reassembled. The concentrations of 21 elements sampled at 54 places on 30 human bones in each of 5 skeletons indicated that the magnesium/zinc ratio was the most reliable and that the zinc/sodium, magnesium/sodium, and chromium/sodium ratios could be used as supplements to help reassemble human bones belonging to the same individual after all standard techniques had been used. 
Question: Does the abstract contain any numerical data?

A:

assistant: Yes
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