Abstracts

Science and technology

Search abstracts:

The earliest art becomes older - and more common

Article Abstract:

Australian archeologist Rhys Jones believes that human beings landed in Australia 60,000 years ago and that they were painting at that time. His idea contradicts earlier research that indicates that Australians arrived only 10,000 years ago and that paintings did not occur until 40,000 years ago.

Australia, Antiquities, Origin, Petroglyphs, Jones, Rhys

---

Life's last domain: with the genome of the archaeon Methanococcus jannaschii sequenced, researchers now have genomes for life's three domains

Article Abstract:

A team at the Institute for Genomic Research has completely sequenced Methanococcus jannaschii, an archaeon, the third major branch of life sequenced, along with bacteria and eukarya. An astonishing 56% of the microbes 1738 genes are unlike any ever seen in bacteria, plants or animals.

Genetic aspects, Genomes, Archaeabacteria, Methanobacteriaceae, Methanogens, Archaea

---

Life at the top: animals pay the high price of dominance

Article Abstract:

Research on urine and fecal samples of wild animals indicates that dominant animals in a pack are subjected to higher levels of stress than subordinate animals. Alpha animals have higher levels of cortisol, a stress-related hormone.

Psychological aspects, Social hierarchy in animals, Dominance (Animal behavior), Animal psychology

Similar abstracts:

• Abstracts: Protecting the environment with the power of the market. How to make the forests of the world pay their way. Is environmental technology a key to a healthy economy?
• Abstracts: The alternative genome. Deciphering the code of life; the study of all the genes of various organisms will yield answers to some of the most intriguing questions about life
• Abstracts: The defense initiative of the 1990s. Interfering with atoms to clear a path for lasers. Resurgent mosquitoes, dengue in Cuba
• Abstracts: Overcoming limitations of the conventional strain-life fatigue damage model. An investigation of the formability of long fiber thermoplastic composite sheets
• Abstracts: First nematode-resistance gene found. Teeth and bones tell their stories at Chicago meeting. Plants as chemical factories

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.