Education—not fertility—key for economic development
A new study published in the journal Demography shows that improvements in education levels around the world have been key drivers of economic growth in developing countries that has previously been attrib ...
Better management of free time ensures happier retirement
Retirees should be masters of their own destiny, and actively manage and plan their free time to ensure a happy and fulfilling retirement. This is the advice of Wei-Ching Wang of the I-Shou University in Taiwan, leader of ...
World population could be nearly 11 billion by 2100, research shows
A new statistical analysis shows the world population could reach nearly 11 billion by the end of the century, according to a United Nations report issued June 13. That's about 800 million, or about 8 percent, more than the ...
Study on human fertility models find those based on economics the most reliable
Understanding the continuous corn yield penalty
As escalating corn prices have encouraged many farmers to switch to growing corn continuously, they wonder why they have been seeing unusually high yield reductions over the past several years. The University of Illinois ...
Fitness for toad sperm: The secret is to mate frequently
An increasing number of men suffer from fertility problems, especially in western society. The general belief is that many problems may be related to stress but it is possible that some of them may arise because men simply ...
A close eye on population growth: Specialist branches into economic, environmental issues
Projections that global population growth will level out in coming decades are not assured, an expert said Wednesday, adding that just a one-child difference in global fertility would mean an extra 10 billion ...
Tackle rising population, consumption: science academies
The world's science academies on Thursday warned the upcoming Rio Summit that Earth faced a dangerous double whammy posed by voracious consumption and a population explosion.
Men can rest easy -- sex chromosomes are here to stay
Fears that sex-linked chromosomes, such as the male Y chromosome, are doomed to extinction have been refuted in a new genetic study which examines the sex chromosomes of chickens.
Spring nitrogen fertilizing for optimal wheat production
With longer and warmer days, wheat seeding and fertilizing has begun across the state. Using the right fertilizer source, rate, timing and placement is important for optimal production. Montana State University Extension ...
Population adds to planet's pressure cooker, but few options
The world's surging population is a big driver of environmental woes but the issue is complex and solutions are few, experts at a major conference here say.
Crowded Earth: how many is too many?
Already straining to host seven billion souls, Earth is set to teem with billions more, and only a revolution in the use of resources can avert an environmental crunch, experts say.
Family planning: Federal program reduced births to poor women by nearly 30 percent
(PhysOrg.com) -- Federal family planning programs reduced childbearing among poor women by as much as 29 percent, according to a new University of Michigan study.
Fewer multiple births in states with insurance coverage for infertility
Faced with the prospect of costly in vitro fertilization (IVF) but with no help from insurance coverage, some infertile couples feel pressure to transfer multiple embryos in an attempt to ensure that the IVF is a success. ...