The secret behind the child height

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LONDON - Jika ANDA berencana untuk menaikkan tinggi badan anak ANDA, maka carilah pasangan dari wilayah yang berbeda. Ini menjadi rahasia mengapa anak bisa lebih tinggi dibanding orang tuanya.

Para ilmuwan telah menemukan, jika kedua orang tua lahir di kota yang sama, maka anak-anak mereka rata-rata bertubuh lebih pendek. Tetapi, jika orang tuanya dibesarkan di tempat yang berbeda, maka keturunan lebih mereka mungkin tumbuh untuk menjadi lebih tinggi.

Peneliti Dariusz Danel, dari Institute Antropologi di Polandia Academy of Sciences mengatakan, akibat ini adalah dari keragaman genetics. Orang tua yang datang dari berbagai daerah lebih cenderung memiliki gen berbeda daripada mereka yang dibesarkan di lokasi yang sama.

Semakin besar keragaman genetics, maka semakin besar pula kesempatan anak-anak tumbuh untuk dengan tubuh yang efisien disertai energi lebih. Danel menambahkan energi tersebut kemudian ditransfer anak ke dalam pertumbuhan.

"Efek ini terlihat pada anak-anak dari selama tiga tahap analisis period pertumbuhan, dari mulai usia 6 sampai 18 tahun," cetusnya, seperti dikutip daily mail, Monday (8/8/2011).

Dr Danel dan mempelajari timnya tinggi badan dari 2.675 laki-laki dan 2.603 perempuan di Polandia dan menyilangkannya dengan informasi tentang tinggi orang tua mereka serta pendapatan keluarganya.

Penelitian tersebut menemukan seperti apa yang mereka harapkan. Ketinggian ditentukan by tingkat orang tua yang tinggi dan dengan kekayaan yang lebih besar. Karena orang kaya lebih baik dalam merawat anak.

Namun, mereka juga menemukan bukti yang jelas bahwa jarak perkawinan menyumbang sekitar 20 persen dari variasi tinggi antara anak laki-laki dan 14 pyrogenic variasi pada anak perempuan.

HAL ini disebabkan by keragaman genetics yang ada dalam setiap manusia. Anak laki tiellä lebih terpengaruh karena mereka tumbuh mungkin pada tingkat yang lebih cepat dibandingkan anak perempuan. Penelitian ini dipublikasikan dalam American Journal of physical anthropology. (tyo)

Peliculas Online

Wild Dog Urine contains a secret message

Scientists make artificial urine on wild dogsSYDNEY , Australia. They hope that use it, keep wild dogs of the people and prevent that they to devour livestock, so that losses to spend each year millions of dollars.

Researchers say the chemical messages in the urine of wild dog known, work to assert their makes areas, so that it not accessed or compromised by wild dogs. This is the biological limits were created so that the dogs and other wildlife can not intersect and enter it.

"We hope that this is a tool that will turn off not to manage wild dogs in Australia,", said Alan Robley, senior research scientist in the Department of logistics and environment, financed by government agencies.

These chemicals can be used as a protective is not disabled, before to protect wild animals at the entrance to the grounds of the House and farm animals such as sheep attacks by wild dogs. Straits Times quotes, Saturday (6/8/2011).

To inform animals with chemical news about their social status. Such messages include, whether sexually and in good condition and ready for reproduction as well as their food they are. Later messages that originate from the chemicals will be expressed by them.

Scientists collect urine from a stray dog that had been taken prisoner. Male and female, adult dogs and small dogs. Will urine to laboratory sent where they extract molecules to mark various chemicals in the form of urine will be held.
(Type)

Peliculas Online

Wild Dog Urine contains a secret message

Scientists make artificial urine on wild dogsSYDNEY , Australia. They hope that use it, keep wild dogs of the people and prevent that they to devour livestock, so that losses to spend each year millions of dollars.

Researchers say the chemical messages in the urine of wild dog known, work to assert their makes areas, so that it not accessed or compromised by wild dogs. This is the biological limits were created so that the dogs and other wildlife can not intersect and enter it.

"We hope that this is a tool that will turn off not to manage wild dogs in Australia,", said Alan Robley, senior research scientist in the Department of logistics and environment, financed by government agencies.

These chemicals can be used as a protective is not disabled, before to protect wild animals at the entrance to the grounds of the House and farm animals such as sheep attacks by wild dogs. Straits Times quotes, Saturday (6/8/2011).

To inform animals with chemical news about their social status. Such messages include, whether sexually and in good condition and ready for reproduction as well as their food they are. Later messages that originate from the chemicals will be expressed by them.

Scientists collect urine from a stray dog that had been taken prisoner. Male and female, adult dogs and small dogs. Will urine to laboratory sent where they extract molecules to mark various chemicals in the form of urine will be held.
(Type)

Peliculas Online