Zobrazeno 1 - 10
of 22
pro vyhledávání: '"M. W. FELDMAN"'
Publikováno v:
Journal of evolutionary biology. 14(1)
Organisms frequently choose, regulate, construct and destroy important components of their environments, in the process changing the selection pressures to which they and other organisms are exposed. We refer to these processes as niche construction.
Autor:
L L, Cavalli-Sforza, M W, Feldman
Publikováno v:
Theoretical Population Biology. 37:3-25
Measures of variation in space are strongly affected by correlations between subdivisions used for sampling. Here we consider variation in gene frequencies across populations. Usually the variance of gene frequencies is standardized by dividing it by
Autor:
L, Hadany, M W, Feldman
Publikováno v:
Journal of evolutionary biology. 18(2)
The advantage of sexual reproduction remains a puzzle for evolutionary biologists. Everything else being equal, asexual populations are expected to have twice the number of offspring produced by similar sexual populations. Yet, asexual species are un
Publikováno v:
Annals of human genetics. 64(Pt 2)
We genotyped 64 dinucleotide microsatellite repeats in individuals from populations that represent all inhabited continents. Microsatellite summary statistics are reported for these data, as well as for a data set that includes 28 out of 30 loci stud
Publikováno v:
Molecular biology and evolution. 13(9)
It has recently been suggested that observed levels of variation at microsatellite loci can be used to infer patterns of selection in genomes and to assess demographic history. In order to evaluate the feasibility of these suggestions it is necessary
Autor:
S, Li, M W, Feldman
Publikováno v:
Chinese journal of population science. 8(3)
Described are the trends and levels of infant mortality in China by sex, time period, region, and ethnic group. Data are obtained from the 1982 census, the 1990 census, and the 1988 2% sample survey on fertility. Jiang et al. national and provincial
Autor:
N, Li, M W, Feldman
Publikováno v:
Chinese journal of population science. 6(3)
A two-sex linear model is described for expressing the decline in age-specific female fertility due to difficulty in becoming married because of a shortage of men. The model is used to explain the standard state and the extent of deviation from the s
Publikováno v:
Science. 274:1548-1549
Publikováno v:
BMJ. 308:536-536
EDITOR, - The recent opening of a gender clinic in north London and the publication of a report of the Human Fertilisation and Embryology Authority1 have focused attention on the morality of selecting the sex of children. The resulting debate has tak