News tagged with human population
Genetic risks for type 2 diabetes span multiple ethnicities
A recent large and comprehensive analysis of 50,000 genetic variants across 2,000 genes linked to cardiovascular and metabolic function has identified four genes associated with type 2 diabetes (T2D) and six independent disease-associated ...
Feb 09, 2012 |
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Study shows calories drive earlier puberty
(Medical Xpress) -- Environmental pollutants, eating habits, lack of exercise and genetic traits have all been raised as possible causes of earlier puberty onset in girls in recent years.
Feb 09, 2012 |
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Economic factors impact orthopaedic trauma volume
Previous studies have found that human behavior during a recession is remarkably different than that during a bullish economy. For example, people tend to spend more time focused on working and less time engaging in leisure ...
Feb 07, 2012 |
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New taste for Thai elephant meat
(AP) -- A new taste for eating elephant meat - everything from trunks to sex organs - has emerged in Thailand and could pose a new threat to the survival of the species.
Jan 27, 2012 |
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Marine mammals on the menu in many parts of world
The fate of the world's great whale species commands global attention as a result of heated debate between pro and anti-whaling advocates, but the fate of smaller marine mammals is less understood, specifically ...
Jan 24, 2012 |
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Therapeutically useful stem cell derivatives in need of stability
Human stem cells capable of giving rise to any fetal or adult cell type are known as pluripotent stem cells. It is hoped that such cells, the most well known being human embryonic stem cells (hESCs), can be used to generate ...
Jan 24, 2012 |
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New malaria maps to guide battle against the disease
A new suite of malaria maps has revealed in unprecedented detail the current global pattern of the disease, allowing researchers to see how malaria has changed over a number of years.
Jan 23, 2012 |
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Scientists find link between gene and sensitivity to emotional environment
Researchers at the University of Essex have shown that a genetic variant could make some people more sensitive to their emotional environment - and more susceptible to anxiety disorders - than others. The study, funded by ...
Medicine & Health / Psychology & Psychiatry
Jan 13, 2012 |
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The microbiome and disease: Gut bacteria influence the severity of heart attacks in rats
New research published online in the FASEB Journal (http://www.fasebj.org) suggests that the types and levels of bacteria in the intestines may be used to predict a person's likelihood of having a heart attack, and that manipulating ...
Jan 13, 2012 |
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Scientists urge balance in the war on antimicrobial resistance
Scientists are urging policymakers to reconsider priorities in efforts to understand and control antimicrobial resistance. The new research, published today, was led by Royal Veterinary College Principal Professor Stuart ...
Jan 05, 2012 |
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The bigger picture of population genomics
Not so long ago it was the work of many years to sequence the genome of a single organism: the human genome project, for example, took many laboratories a total of 13 years to complete. The availability of so-called next-generation ...
Jan 05, 2012 |
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Scientists perform large asian genome-wide association study on kidney disease
Singapore and China scientists, headed by Dr Liu Jianjun, Senior Group Leader and Associate Director of Human Genetics at the Genome Institute of Singapore (GIS) and Dr Yu Xueqing, a nephrologist at the 1st Affiliated Hospital ...
Dec 29, 2011 |
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Genetic diversity: Crucial for our survival in many ways
(Medical Xpress) -- Thanks to the sequencing of the 27 known human interferon genes, researchers from the Institut Pasteur and the CNRS reconstruct the genetic history of these proteins so central for our immune system, and ...
Dec 20, 2011 |
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Resequencing 50 accessions of rice cast new light on molecular breeding
BGI, the world's largest genomics organization, announced that a study on resequencing 50 accessions of cultivated and wild rice was published online today in Nature Biotechnology. The study provides one of the largest genome ...
Dec 11, 2011 |
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New paper calls for strong steps to tackle antibiotic resistance
Shahriar Mobashery, a University of Notre Dame researcher, is one of the coauthors of a new paper by a group of the world's leading scientists in academia and industry that calls for strong steps to be taken to control the ...
Medicine & Health / Medications
Dec 08, 2011 |
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World population
The term world population commonly refers to the total number of living humans on Earth at a given time. As of 29 July 2009, the Earth's population is estimated by the United States Census Bureau to be 6.774 billion. The world population has been growing continuously since the end of the Black Death around 1400. There were also short term falls at other times due to plague, for example in the mid 17th century (see graph). The fastest rates of world population growth (above 1.8%) were seen briefly during the 1950s then for a longer period during the 1960s and 1970s (see graph). According to population projections, world population will continue to grow until around 2050. The 2008 rate of growth has almost halved since its peak of 2.2% per year, which was reached in 1963. World births have levelled off at about 134-million-per-year, since their peak at 163-million in the late 1990s, and are expected to remain constant. However, deaths are only around 57 million per year, and are expected to increase to 90 million by the year 2050. Since births outnumber deaths, the world's population is expected to reach about 9 billion by the year 2040.
For more information about World population, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.