Growth in German children
June 19, 2009German children are taller than 30 years ago, but the increase in height observed during the last century has become slower.
In the current edition of Deutsches Ärzteblatt International (Dtsch Arztebl Int 2009; 106(23): 377-82), Bettina Gohlke and Joachim Woelfle of the Department of Pediatrics at the University of Bonn summarize the current state of knowledge of changes in height and of the physical development of young people.
7- to 10-year olds are 1 to 1.5 cm taller than in the 1970s, whereas length at birth only slightly increased between 1984 and 1997, by 0.2 cm. This implies that the rate of growth during childhood has increased. This trend is less marked after puberty. There has also been little change in physical maturation. Thus, the age at menarche in young women has remained constant at about 13 years since the early 1960s.
The correlation between growth and socioeconomic status has been well established. For this reason, body growth is accepted as an important indicator of the socioeconomic conditions of a society. However, the biological mechanism through which this acts is still unknown.
Source: Deutsches Aerzteblatt International
-
Knock-out drugs: Narrow window for detection
May 29, 2009 |
not rated yet |
0
-
Genetic test improves artificial fertilization
Mar 27, 2008 |
not rated yet |
0
-
Chinese slimming capsules
Apr 08, 2009 |
not rated yet |
0
-
Germany: Every fifth adolescent smokes
Apr 23, 2008 |
not rated yet |
0
-
Height affects how people perceive their quality of life
Oct 18, 2007 |
not rated yet |
0
-
Engineers build first sub-10-nm carbon nanotube transistor
Feb 01, 2012 |
4.9 / 5 (31) |
30
-
Something old, something new: Evolution and the structural divergence of duplicate genes
Jan 31, 2012 |
4.6 / 5 (7) |
1
-
The hidden nanoworld of ice crystals: Revealing the dynamic behavior of quasi-liquid layers
Jan 30, 2012 |
5 / 5 (3) |
1
-
Stock market network reveals investor clustering
Jan 27, 2012 |
3.9 / 5 (23) |
8
-
Of microchemistry and molecules: Electronic microfluidic device synthesizes biocompatible probes
Jan 26, 2012 |
5 / 5 (1) |
0
-
Classical and Quantum Mechanics via Lie algebras
Apr 15, 2011
- More from Physics Forums - Independent Research
More news stories
Complex wiring of the nervous system may rely on a just a handful of genes and proteins
Researchers at the Salk Institute have discovered a startling feature of early brain development that helps to explain how complex neuron wiring patterns are programmed using just a handful of critical genes. ...
11 hours ago |
4.9 / 5 (9) |
1
|
Team isolates nerve cells involved in storing long term memory and gene proteins associated with them
(Medical Xpress) -- A research team in Taiwan has succeeded in isolating two nerve cells in fruit fly brains that are believed to be the major players in allowing for the formation of long term memories. Furthermore, ...
Seeing colors in music, tasting flavors in shapes may happen in life's early months
Famed violinist Itzhak Perlman sees a deep forest green whenever he plays a B-flat on his Stradivarius' G string. The A on the E string is red.
Medicine & Health / Psychology & Psychiatry
18 hours ago |
4.5 / 5 (2) |
2
|
Both maternal and paternal age linked to autism
Older maternal and paternal age are jointly associated with having a child with autism, according to a recently published study led by researchers at The University of Texas Health Science Center at Houston (UTHealth).
Medicine & Health / Psychology & Psychiatry
15 hours ago |
4.3 / 5 (3) |
0
|
New understanding of DNA repair could eventually lead to cancer therapy
A research group in the Faculty of Medicine & Dentistry at the University of Alberta is hoping its latest discovery could one day be used to develop new therapies that target certain types of cancers.
14 hours ago |
4.8 / 5 (6) |
0
|
Anonymous knocks CIA website offline (Update)
The website of the Central Intelligence Agency was inaccessible on Friday after the hacker group Anonymous claimed to have knocked it offline.
New error-correcting codes guarantee the fastest possible rate of data transmission
Error-correcting codes are one of the triumphs of the digital age. Theyre a way of encoding information so that it can be transmitted across a communication channel such as an optical fiber o ...
Google users warned of threat to smartphone wallets
Users of Google smartphone wallets were being warned on Friday that there is a way to crack pass codes intended to thwart thieves from going on illicit shopping sprees.
Humans may have helped the decline of African rainforests 3000 years ago
(PhysOrg.com) -- Large areas of rainforests in Central Africa mysteriously disappeared over three thousand years ago, to be replaced by savannas. The prevailing theory has been that the cause was a change ...
New power source discovered
(PhysOrg.com) -- Researchers at the Massachusetts Institute of Technology (MIT) and RMIT University have made a breakthrough in energy storage and power generation.
Small modular reactor design could be a 'SUPERSTAR'
(PhysOrg.com) -- Though most of today's nuclear reactors are cooled by water, we've long known that there are alternatives; in fact, the world's first nuclear-powered electricity in 1951 came from a reactor ...