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Latest Breathing gases Stories

How Was Oxygen Before Life Made?
2014-10-06 03:40:50

Provided by Andy Fell, UC Davis About one-fifth of the Earth’s atmosphere is oxygen, pumped out by green plants as a result of photosynthesis and used by most living things on the planet to keep our metabolisms running. But before the first photosynthesizing organisms appeared about 2.4 billion years ago, the atmosphere likely contained mostly carbon dioxide, as is the case today on Mars and Venus. Over the past 40 years, researchers have thought that there must have been a small...

2014-10-01 20:22:13

LONDON, Oct.1, 2014 /PRNewswire/ -- The global medical gases and equipment market is estimated to be worth $14,953 million by 2018. The global medical gases and equipment market is segmented by product, end user, and geography. The medical gases and equipment market is mainly classified, by product into medical gases and equipment. It is further categorized by pure gases and by gas mixtures. The equipment market covers cylinders, vacuum systems, manifolds, regulators, suction...

Oxygen Depletion In Baltic Sea Is 10 Times Worse Than A Hundred Years Ago
2014-04-01 14:34:17

Aarhus University This news release is available in German. After several years of discussions, researchers from Aarhus University (Denmark), Lund University (Sweden) and Stockholm University (Sweden) have determined that nutrients from the land are the main cause of widespread areas of oxygen depletion. The results were published on 31 March in the prestigious American journal Proceedings of the National Academy of Sciences. Nutrients are the villain The deepest areas of the...

Ups And Downs Of Early Atmospheric Oxygen
2014-02-20 10:41:29

Iqbal Pittalwala - University of California - Riverside UC Riverside research team challenges conventional view of a simple two-step rise in early oxygen on Earth; study suggests instead dynamic oxygen concentrations that rose and fell over billions of years A team of biogeochemists at the University of California, Riverside, give us a nontraditional way of thinking about the earliest accumulation of oxygen in the atmosphere, arguably the most important biological event in Earth...

Life-Bearing Oxygen Appeared On Earth Three Billion Years Ago
2013-09-26 07:19:54

April Flowers for redOrbit.com - Your Universe Online New research from the University of Copenhagen and University of British Columbia (UBC) has revealed that oxygen appeared 700 million years earlier than we previously thought. The findings, published in the journal Nature, raises new questions about the evolution of early life. The research team examined the chemical composition of three-billion-year-old soils from South Africa, which are the oldest soils on Earth. They found...

Earth’s Oxygen Poor Oceans Challenged Early Evolution Of Life
2013-03-19 08:59:17

April Flowers for redOrbit.com - Your Universe Online An international research group led by biogeochemists at the University of California, Riverside has filled a billion-year gap in our understanding of conditions in the early ocean during a critical time in the history of life on Earth. There is a general consensus in the scientific community currently that appreciable levels of oxygen first accumulated in the atmosphere around 2.4 to 2.3 billion years ago and that the build-up of...


Word of the Day
abrosia
  • Wasting away as a result of abstinence from food.
The word 'abrosia' comes from a Greek roots meaning 'not' and 'eating'.