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News articles about "Concentration"

Atmosphere in northern hemisphere has lower self-cleaning capacity than previously thought

Pollution is being removed more slowly from the atmosphere in the northern hemisphere than previously assumed An international research team that includes researchers from Wageningen University established that the atmospheric cleaning agent hydroxyl OH is ... - Read More

Microfluidics: Lab on a breathing chip

Human nasal epithelial cells cultured on a microchip react to air pollutants just like they would in the upper airway The upper respiratory tract is the first line of defense against air pollutants including allergens ... - Read More

Rolling 'neat' nanotube fibers: Acid-free approach leads to strong conductive carbon threads

The very idea of fibers made of carbon nanotubes is neat but Rice University scientists are making them neat literally The single walled carbon nanotubes in new fibers created at Rice line up like a ... - Read More

Liposome research meets nanotechnology to improve cancer treatment

In the race to find more effective ways to treat cancer Boise State University biophysicist Daniel Fologea is working outside the rules of general mathematics that say one plus one equals two In his world ... - Read More

High-altitude balloon over Ontario, Canada: Researchers measure ozone-depleting bromine

How much does bromine affect stratospheric ozone Answering this question is the primary objective of measurements by a multi instrument gondola carried by a high altitude balloon The gondola accommodates a unique combination of remote ... - Read More

Gulf killifishes' biological responses to oil spills similar in field, laboratory studies

Gulf killifish biological responses to the Deepwater Horizon oil spill detected by researchers in the field are similar to those in controlled laboratory studies according to a study published September 10 2014 in the open ... - Read More

Sharks in acidic waters avoid smell of food

The increasing acidification of ocean waters caused by rising atmospheric carbon dioxide levels could rob sharks of their ability to sense the smell of food a new study suggests Elevated carbon dioxide levels impaired the ... - Read More

Carbon dioxide concentration surges: Record greenhouse gas levels impact atmosphere and oceans, WMO report finds

The amount of greenhouse gases in the atmosphere reached a new record high in 2013 propelled by a surge in levels of carbon dioxide This is according to the World Meteorological Organization's annual Greenhouse Gas ... - Read More

Ultra sensitive biosensor from molybdenite semiconductor: Potential for single-molecule detection

UC Santa Barbara researchers demonstrate atomically thin ultrasensitive and scalable molybdenum disulfide field effect transistor based biosensors and establish their potential for single molecule detection Move over graphene An atomically thin two dimensional ultrasensitive semiconductor ... - Read More

Looking deep inside a working lithium-ion battery

For the first time researchers have been able to open a kind of window into the inner workings of a lithium ion battery Using a neutron beam chemists and engineers at The Ohio State University ... - Read More

Ultra sensitive biosensor from molybdenite semiconductor developed

UC Santa Barbara researchers demonstrate atomically thin ultrasensitive and scalable molybdenum disulfide field effect transistor based biosensors and establish their potential for single molecule detection Move over graphene An atomically thin two dimensional ultrasensitive semiconductor ... - Read More

Gasification of oil palm biomass to produce clean producer gas for heat, power generation

This technology can simultaneously remove impurities and produce clean gas for heat and power generation from waste biomass The process of burning fossil fuels such as petroleum coal and natural gas releases huge amounts of ... - Read More

Plug 'n' play protein crystals

Almost a hundred years ago in 1929 Linus Pauling presented the famous Pauling's Rules to describe the principles governing the structure of complex ionic crystals These rules essentially describe how the arrangement of atoms in ... - Read More

Eco-pottery product from water treatment sludge

Sludge obtained from water treatment plants were studied as suitable materials to be used in the pottery industry to make suitable pottery products Sludge is a by product of water treatment Sludge is produced during ... - Read More

Tool helps guide brain cancer surgery

A tool to help brain surgeons test and more precisely remove cancerous tissue was successfully used during surgery according to a Purdue University and Brigham and Women's Hospital study The Purdue designed tool sprays a ... - Read More

NASA launches carbon mission to watch Earth breathe

NASA successfully launched its first spacecraft dedicated to studying atmospheric carbon dioxide at 2 56 a m PDT 5 56 a m EDT Tuesday July 1 2014 The Orbiting Carbon Observatory 2 OCO 2 raced ... - Read More

High carbon dioxide levels cause warming in tropics

The impact of the greenhouse gas CO2 on Earth's temperature is well established by climate models and temperature records over the past 100 years as well as coupled records of carbon dioxide concentration and temperature ... - Read More

Emperor penguin in peril: Climate change threatens dramatic declines

An international team of scientists studying Emperor penguin populations across Antarctica finds the iconic animals in danger of dramatic declines by the end of the century due to climate change Their study published today in ... - Read More

Green planning needed to maintain city buildings

Green spaces in towns and cities need extra consideration as they may be damaging buildings in the area according to new research from the Universities of Southampton and Surrey When organic chemicals from trees and ... - Read More

Green spaces in cities may increase erosion of building materials such as stone, concrete and steel

Green spaces in towns and cities need extra consideration as they may be damaging buildings in the area according to new research from the Universities of Southampton and Surrey When organic chemicals from trees and ... - Read More
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