Results 101 to 110 of about 99,055 (216)

Contraception - The Revolution that Failed [PDF]

, 1990
Brady, Peter
core   +3 more sources

Population Policies in the Sino-Soviet Bloc [PDF]

, 1960
Mauldin, W. Parker
core   +2 more sources

De invloed van stikstofbemesting en zwaarte van de voorgaande snede op de hergroei van gras = Influence of nitrogen fertilization and yield of the preceeding cut on the regrowth of grass

, 1987
Proeven worden beschreven, waarin de hergroei van gras is bestudeerd na verschillende stikstofbemestingen (0, 40, 80, 120 en 160 kg N/ha) en verschillende zwaarten van de voorgaande ...
openaire   +1 more source

Soil phosphorus forms and their availability in six typical plantations at the southern foot of the Taihang Mountains, China. [PDF]

Sci Rep
Zhuang J, Ma Y, Cheng C.
europepmc   +1 more source

Contraception and Abortion, Foes or Friends? [PDF]

, 2000
Suaudeau, Jacques
core   +1 more source

Human Capital, Fertility, and Economic Growth [PDF]

Our model of growth departs from both the Malthusian and neoclassical approaches by including investments in human capital. We assume, crucially, that rates of return on human capital investments rise, rather than, decline, as the stock of human capital ...
Gary S. Becker, Kevin M. Murphy, Robert F. Tamura   +2 more
core  

Excessive Vitamin E Supplementation: Implications for Ovarian Physiology and Reproductive Health. [PDF]

Oxid Med Cell Longev
Rabiee F, Fattahi M, Iranzad M, Rahimi Andani M, Jafarpour F, Sanei MH, Drevet JR, Nasr-Esfahani MH.   +7 more
europepmc   +1 more source

Invloed van kunstmest en varkensdrijfmest op de opbrengst, kwaliteit en chemische samenstelling van mais (IB 1866: 1971 t.e.m. 1982) = Effect of fertilizer and pig slurry on yield, quality and chemical composition of maize

, 1984
In een veeljarige proef met twee kunstmest- en vier varkensdrijfmestobjecten werd in de periode 1971 tot en met 1974 korrelmais geteeld. De kolf- en korrelopbrengsten namen tot 200 kg minerale stikstof per ha toe, de verse en drogestofopbrengsten van het stro bleven toenemen tot 300 kg N per ha. De minerale samenstelling van de korrels werd weinig, die
openaire   +1 more source

Ovarian Ectopic Pregnancy, an Unusual Diagnosis-Two Cases With Two Distinct Treatment Approaches. [PDF]

Clin Case Rep
Mota de Sousa A, de Pinho A, Nogueira R, Melo A, Meireles I, Soares E, do Carmo O, Castro DME.   +7 more
europepmc   +1 more source

Qualitative Aspects of Population Control: Eugenics and Euthenics [PDF]

, 1960
Osborn, Frederick
core   +1 more source