Genetic absolute dating based on microsatellites and the origin of modern humans.

We introduce a new genetic distance for microsatellite loci, incorporating features of the stepwise mutation model, and test its performance on microsatellite polymorphisms in humans, chimpanzees, and gorillas. We find that it performs well in determining the relations among the primates, but less well than other distance measures (not based on the stepwise mutation model) in determining the relations among closely related human populations. However, the deepest split in the human phylogeny seems to be accurately reconstructed by the new distance and separates African and non-African populations. The new distance is independent of population size and therefore allows direct estimation of divergence times if the mutation rate is known. Based on 30 microsatellite polymorphisms and a recently reported average mutation rate of 5.6 x 10(-4) at 15 dinucleotide microsatellites, we estimate that the deepest split in the human phylogeny occurred about 156,000 years ago. Unlike most previous estimates, ours requires no external calibration of the rate of molecular evolution. We can use such calibrations, however, to test our estimate.

Laws made and past by William Penn: Absolute Proprietary and Governour in Chief of the province of Pennsylvania and territories thereunto belonging, with the advice and consent of the freemen thereof in genrall assembly met at Newcastle...1700....and [as amended] at Philadelphia...1701

Contains one of the few original copies of Penn's laws as first passed and as revised and extended in the following year. During the interval between the two Assemblies, while Penn was absent in England, the first series of laws were found to be impracticable, and new amendments were made for which Penn had no choice but to agree to.

Absolute abundances of benthic foraminifers and stable isotopes from the Alvin dives 3709-3712

The presence of gas hydrates on the Blake Ridge diapir, northeastern Atlantic Ocean, offers an opportunity to study the impact of methane seepage on the ecology and geochemistry of benthic foraminifera in the late Holocene. Three push cores, covering a time span of ~ 1000 yrs, were retrieved from three distinct microhabitats at the top of the diapir at a water depth of ~ 2150 m: (i) sediments away from seepage (control core), (ii) sediments overlain by clusters of methanotrophic and thiotrophic bivalves, and (iii) chemoautotrophic microbial mats. The foraminiferal assemblages at the two seep sites are marked by a reduction in benthic foraminiferal species diversity, coupled with a near-absence of agglutinated species. However, an opportunistic population rise in CH4- or H2S-tolerant calcareous species (e.g., Globocassidulina subglobosa and Cassidulina laevigata) that utilize the abundant trophic resources at the seeps has led to an increase in the overall assemblage density there. The delta18O and delta13C values of three species of benthic foraminifera - Gyroidinoides laevigatus, Globocassidulina subglobosa, and Uvigerina peregrina - and the planktonic species Globorotalia menardii were acquired from all three cores. The benthic species from methane seeps yield delta13C values of 0.1 to - 4.2 (per mil VPDB), that are distinctly more 13C-depleted relative to the delta13C of 0.4 to - 1.0 (per mil VPDB) at the control (off seep) site. The species from a mussel-bed site exhibit more negative delta13C values than those from microbial mats, possibly reflecting different food sources and higher rate of anaerobic oxidation of methane. The positive delta13C values in the paired planktonic species suggest that authigenic carbonate precipitation did not overprint the observed 13C depletions. Hence the probable cause of negative delta13C of benthic foraminifera is primary calcification from Dissolved Inorganic Carbon (DIC) containing mixed carbon fractions from (a) highly 13C-depleted, microbially-oxidized methane and (b) a seawater source.

The artist's technique of violin playing : a new scientific method for obtaining, in the shortest possible time, an absolute mastery of the higher technical difficulties of the left hand and of the bow = Die Künstlertechnik des Violinspiels = La technique d'artiste du violon : opus 12 /

Text in English, German and French.

Absolute photometry of the light of the night sky ; the zenith intensity of Haleakala (latitude N 20.7 degrees) and at Fritz Peak (latitude N 39.9 degrees) /

Includes bibliography.

Catalogue of the Ehrich Galleries collection of valuable paintings by the masters of the classic Italian, Dutch, Flemish, English, Spanish and French schools, to be sold at absolute public sale ... March 24th [1905] The sale will be conducted by James P. Silo, of the Fifth avenue galleries.

Mode of access: Internet.

Theology and human problems, a comparative study of absolute idealism and pragmatism as interpreters of religion. The Nathaniel William Taylor lectures for 1909-10, given before the Divinity School of Yale University,

Mode of access: Internet.

Outline of a metaphysics; the absolute-relative theory.

Mode of access: Internet.

General regulations for working the absolute block telegraph on double lines of railway.

Mode of access: Internet.

A dissertation on miracles : designed to shew that they are arguments of a divine interposition and absolute proofs of the mission and doctrine of a prophet /

Mode of access: Internet.

A dissertation on miracles : designed to shew that they are arguments of a divine interposition and absolute proofs of the mission and doctrine of a prophet /

Mode of access: Internet.