Results 271 to 280 of about 433,264 (313)

Input Substitution and the Concept of the Effective Rate of Protection

Journal of Political Economy, 1972
The concept of effective protection was originally formulated under the assumption of fixed intermediate input coefficients. This paper investigates the difficulties that arise when these coefficients may vary. The article distinguishes two goals of effective rates which can both be met by a single measure when input coefficients are fixed but which ...
openaire   +1 more source

Conception rates and in-vitro fertilisation

The Lancet, 1990
S L, Tan, C, Steer, P, Royston, P, Rizk, B A, Mason, S, Campbell   +5 more
openaire   +2 more sources

Semantic differential ratings of concepts and suicide intent

Journal of Clinical Psychology, 1976
Ninety-four Ss (28 attempters, 32 threateners and 34 psychiatric controls) rated 10 concepts twice 1 month apart. Extreme rating scores and factor (attitude) scores were derived from the ratings. Suicidal Ss made no more use of extreme ratings than did control Ss.
openaire   +2 more sources

Subfertility, fecundability, and the impact of laparoscopy on conception rates

Fertility and Sterility, 2005
Confusion is common when trying to compare the outcome of different fertility treatments. Calculation of fecundability is an excellent adjunct to reports that show cumulative conception totals after a period of observation or treatment.
openaire   +2 more sources

Conception after Adoption: A Comparison of Conception Rates

Fertility and Sterility, 1965
openaire   +3 more sources

Revised Concept of Rate

Journal of Speech and Hearing Disorders, 1949
J. C. Kelly, M. D. Steer
openaire   +1 more source

On the Study of the Concept of “Reaction Rate”

Chemistry at School
The article examines common misunderstandings among high school students about the key concept of chemical kinetics, the rate of a chemical reaction. Intuitive but imprecise definitions are discussed, along with correct formulations recommended by IUPAC.
openaire   +1 more source

Temperature, climate change, and human conception rates: evidence from Hungary

Journal of Population Economics, 2021
Tamás Hajdu, Gabor Hajdu, Hajdu Tamás   +2 more
exaly  

Effect of weather on conception rates of sheep

New Zealand Veterinary Journal, 1973
openaire   +2 more sources

Conception, early pregnancy loss, and time to clinical pregnancy: a population-based prospective study

Fertility and Sterility, 2003
Xiaobin Wang, Changzhong Chen, Dafang Chen   +2 more
exaly