Arsenic speciation in a brown alga, Fucus gardneri, collected in Vancouver, B.C., Canada, was carried out by using high-performance liquid chromatography-inductively coupled plasma-mass spectrometry (HPLC-ICP-MS). Hydride generation-atomic absorption spectrometry (HG-AAS) was used for total arsenic
Seasonal changes in skin color
โ Scribed by Gabriel Ward Lasker
- Publisher
- John Wiley and Sons
- Year
- 1954
- Tongue
- English
- Weight
- 286 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0002-9483
No coin nor oath required. For personal study only.
โฆ Synopsis
I n a receiit paper (Lasker, 'Zit), I have used a photoelectric reflection meter to analyze skin color differences in closely rc- lated populations. The present study is an application of the smie method to the investigation of seasonal changes. Ry nieasuring the same gronp of persons periodically, I hoped * A table of the individual nieiisurements has been deposited as Document number 4300 with the AD1 Auxiliary Publieation Serrice, Photoduplication Sorvice, Library of Congress, Wiisliingtun 25, D. C. A photoprint or microllm copy nmy be secured from them on aclvanee payment of $1.25.
๐ SIMILAR VOLUMES
Previous studies of human skin color have shown a strong relationship between skin color and distance from the equator, which has been interpreted as a link between skin color, latitude, and the intensity of ultraviolet radiation. The underlying assumptions are that UV radiation is greatest at the e
Reproductive data are presented for female Papio papio housed in the Zoological Park of Paris and are compared with previously published data from free-ranging populations of other baboon species. The results indicate similar intermenstrual intervals and durations of sexual swelling. Sexual swelling