Atmospheric Pressure Current Events | Atmospheric Pressure News
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Food could be made safer by surface decontamination with steam
Trials have been carried out using steam below, at, or above atmospheric pressure. As the pressure of the steam is increased, higher decontamination temperatures can be achieved. Comparative studies are also assessing the use of treatments with hot air, water immersion, infrared irradiation, ultraviolet (UV) light, microwaves, or ozone. view more (1999-11-29)
New method for growing barium titanate films at atmospheric pressure
The localized hydrothermal technique: A new method for growing barium titanate films at atmospheric pressure. view more (2005-09-28)
Increased atmospheric carbon dioxide promotes algal growth
It is usually thought that unlike terrestrial plants, submerged plants like algae will not show any response to an increase of atmospheric carbon dioxide. This view may be biased by a neglect of the effects of the plants themselves on the water chemistry. In the June issue of Ecology Letters, Schippers, Lürling and Scheffer of the Wageningen... view more... (2004-05-13)
Gas-guzzling bacteria
The discovery of a new soil bacterium that consumes methane by oxidising it under atmospheric conditions is reported in Nature, out today. In well-drained soils, these methane-oxidising bacteria can reduce atmospheric levels of methane by 10 per cent. Methane is an important greenhouse gas, and over the last 200 years its concentration in the... view more... (2000-05-10)
The Mechanisms of Atmospheric Nucleation
Aerosol particles are ubiquitous in Earth's atmosphere, influencing the quality of life through their climatic and health effects and by affecting visibility. In recent years, the formation and growth of nanometer-scale particles have been observed in situ in many different atmospheric environments, including urban plumes, clean arctic air, the... view more... (2003-11-06)
New Director for the NERC Centres for Atmospheric Science
Professor Stephen Mobbs from the University of Leeds has been appointed as the next Director of the NERC Centres for Atmospheric Science (NCAS). He will take up his new role on 1 July 2005. view more (2005-04-15)
Study simulating aircraft conditions suggests increased risk of venous thrombosis (p 1657)
Two weeks after a study published in THE LANCET concluded that there was no increased risk of venous thrombosis from air travel (Kraaijenhagen RA, Haverkamp D. Travel and risk of venous thrombosis. Lancet 2000; 356: 1492-93), a research letter published in this week’s issue of THE LANCET suggests an increased risk of venous thrombosis in a... view more... (2000-11-08)
No link between high blood pressure and headaches
Severe headaches are not a sign of high blood pressure, as is commonly thought, finds research in the Journal of Neurology Neurosurgery and Psychiatry. If anything, high blood pressure seems to reduce the risk of these headaches, the study shows. view more (2002-03-21)
Systolic and diastolic blood pressures together more useful for predicting cardiovascular risk
Individuals with diastolic blood pressure under 70 mm Hg coupled with an elevated systolic blood pressure may have a greater risk of heart attack and stroke than indicated by the systolic blood pressure values alone, according to a UC Irvine study. view more (2009-02-19)
DOES TREATING HIGH BLOOD PRESSURE SAVE LIVES? (P1305)
Findings of a meta-analysis published in this week's issue of The Lancet emphasise that blood pressure control is important and that on average, all antihypertensive drugs have similar long-term efficacy and safety. One of the most common causes of death in the developed world is cardiovascular disease (heart attacks and strokes). Measures to... view more... (2001-10-17)
Alloy of hydrogen and oxygen made from water
Water, the only indispensable ingredient of life, is just about the most versatile stuff on Earth. Depending on its temperature we can heat our homes with it, bathe in it, and even strap on skates and glide across it, to name only the most common of its many forms. When subjected to high pressures, however, water can take any of more than 15... view more... (2006-10-27)
An unexpected outcome of atmospheric CO2 enrichment
Unseen belowground interactions impact the composition of natural plant communities. Mycorrhizae, symbiotic associations between soil fungi and plant roots, help plants acquire soil nutrients but also drain substantial carbon from plants. Whether mycorrhizae help or hinder plant growth depends upon the balance between nutrient benefits and carbon... view more... (2003-05-22)
Unexpected growth in atmospheric CO2
A team of scientists has found that atmospheric carbon dioxide (CO2) growth has increased 35 percent faster than expected since 2000. The findings are published this week in the journal Proceedings of the National Academy of Sciences (PNAS). view more (2007-10-23)
Tracking Earth's wobbles down to the size of a cell phone
New technologies are enabling scientists to determine precisely the extent and causes of Earth's short-term wobbling. view more (2006-06-27)
What Goes On Underneath Your Feet?
It is generally assumed that heat from Earth's core and mantle, due to the low thermal conductivity of the latter, is transferred to the outer part mainly by convection. This implies swirling movement of an immense amount of hot material, which is behind the dynamics of Earth's interior. Understanding the details of this is of great interest since... view more... (2004-07-16)
NASA's CloudSat Captures a Sideways Look a Fading Lana
NASA satellites do some really cool things, like take a sideways look at a slice of a tropical depression. That's what CloudSat did with Lana in the Central Pacific. view more (2009-08-04)
Groundbreaking Canada-US study proves link between emissions and mercury pollution in fish
A groundbreaking environmental study to be published in a prestigious American science journal proves that mercury atmospheric emissions will end up in fish in as little as three years. view more (2007-09-18)
Caltech scientists predict greater longevity for planets with life
Roughly a billion years from now, the ever-increasing radiation from the sun will have heated Earth into inhabitability; the carbon dioxide in the atmosphere that serves as food for plant life will disappear, pulled out by the weathering of rocks; the oceans will evaporate; and all living things will disappear. view more (2009-06-15)
Strange molecule in the sky cleans acid rain, scientists discover
Researchers have discovered an unusual molecule that is essential to the atmosphere's ability to break down pollutants, especially the compounds that cause acid rain. view more (2008-08-13)
New laboratory to study the oceans and air
Almost two-thirds of the planet is ocean and this has a major impact on our lives. Now the University of East Anglia (UEA) will be home to the world's first facility dedicated to the study of chemical ocean-air interactions which are important in regulating Earth's climate. Examples include ocean uptake of greenhouse gases such as carbon dioxide... view more... (2003-11-21)
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