Artifacts of Fourier series analysis.
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Analysis of Variance↗
Biomedical subjects
M Lampl
Publications and source records attributed to M Lampl.
Saltation and stasis: a model of human growth.
Human growth has been viewed as a continuous process characterized by changing velocity with age. Serial length measurements of normal infants were assessed weekly (n = 10), semiweekly (n = 18), and daily (n = 3) (19 females and 12 males) during their first 21 months. Data show that growth in length occurs by discontinuous, aperiodic saltatory spurts. These bursts were 0.5 to 2.5 centimeters in amplitude during intervals separated by no measurable growth (2 to 63 days duration). These data suggest that 90 to 95 percent of normal development during infancy is growth-free and length accretion is a distinctly saltatory process of incremental bursts punctuating background stasis.
Aging↗
The effects of protein supplementation on the growth and skeletal maturation of New Guinean school children.
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Adolescent↗
Maturational patterns in early hominids.
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Age Determination by Teeth↗
Further observations on diurnal variation in standing height.
A total of 328 daily assessments of standing height were made on one boy between the ages of 12.83 and 13.95 years; 292 of these were replicates to establish reliability of measurement. On 300 days, measurements were taken in the morning within 1/2 h of rising (which varied between 0700 and 1100 h) and repeated before bed on the same day, between 2100 and 2300 h. The standard error of measurement from 292 duplicate measurements was 0.12 cm. A mean of 0.98 +/- 0.2 cm decrease in stature occurred during the course of the day. A similar decrease was found on three occasions after 2-3 h naps.
Adolescent↗