News tagged with calcium levels

Scientists: Global warming has already changed oceans

In Washington state, oysters in some areas haven't reproduced for four years, and preliminary evidence suggests that the increasing acidity of the ocean could be the cause. In the Gulf of Mexico, falling oxygen levels in ...

Space & Earth / Earth Sciences

created Jun 10, 2009 | popularity 4.2 / 5 (63) | comments 4

Acid test: Study reveals both losers and winners of CO2-induced ocean acidification

(PhysOrg.com) -- As the world’s seawater becomes more acidic due to rising atmospheric carbon dioxide, some shelled marine creatures may actually become bigger and stronger, according to a new study.

Space & Earth / Earth Sciences

created Dec 01, 2009 | popularity 4.3 / 5 (13) | comments 8

Cell's power generator depends on long-sought protein: 50-year search for calcium channel ends

(PhysOrg.com) -- Mitochondria, those battery-pack organelles that fuel the energy of almost every living cell, have an insatiable appetite for calcium. Whether in a dish or a living organism, the mitochondria ...

Chemistry / Biochemistry

created Jun 19, 2011 | popularity 5 / 5 (10) | comments 2 | with audio podcast

Shells slim down with CO2

Marine algae that turn carbon dissolved in seawater into shell will produce thinner and thinner shells as carbon dioxide levels increase.

Space & Earth / Environment

created Aug 09, 2011 | popularity 4.2 / 5 (6) | comments 0 | with audio podcast

Seafloor Fossils Provide Clues on Climate Change

Deep under the sea, a fossil the size of a sand grain is nestled among a billion of its closest dead relatives. Known as foraminifera, these complex little shells of calcium carbonate can tell you the sea ...

Space & Earth / Earth Sciences

created Oct 22, 2009 | popularity 4 / 5 (6) | comments 1

On...off...on...off... The circuitry of insulin-releasing cells

A myriad of inputs can indicate a body's health bombard pancreatic beta cells continuously, and these cells must consider all signals and "decide" when and how much insulin to release to maintain balance in blood sugar, for ...

Chemistry / Biochemistry

created Dec 09, 2010 | popularity 4.2 / 5 (5) | comments 0 | with audio podcast

Sea cucumbers could be key to preserving coral reefs

(PhysOrg.com) -- Tropical sea cucumbers could play a key role in saving coral reefs from the devastating effects of climate change, say scientists at One Tree Island, the University of Sydney's research station ...

Space & Earth / Environment

created Jan 31, 2012 | popularity 5 / 5 (4) | comments 1

Vitamin D deficiency is widespead and on the increase

A new report issued by the International Osteoporosis Foundation (IOF) and published in the scientific journal Osteoporosis International, shows that populations across the globe are suffering from the impact of low levels ...

Medicine & Health / Health

created Jun 30, 2009 | popularity 3.6 / 5 (5) | comments 1

New Model Suggests Role of Low Vitamin D in Cancer Development

(PhysOrg.com) -- In studying the preventive effects of vitamin D, researchers at the Moores Cancer Center at the University of California, San Diego, have proposed a new model of cancer development that hinges on a loss of ...

Medicine & Health / Cancer

created May 22, 2009 | popularity 4.3 / 5 (4) | comments 5

Shedding light on ice sheet collapse through Great Barrier Reef

An international team of scientists jointly led by Dr. Jody Webster, of the University of Sydney, and Dr Yusuke Yokoyama, of the University of Tokyo, is analyzing sediment cores drilled by the research ship, the Greatship ...

Space & Earth / Earth Sciences

created Feb 21, 2011 | popularity 4 / 5 (4) | comments 0

Loss of 'lake lawnmowers' leads to algae blooms

Unprecedented algae growth in some lakes could be linked to the decline of water calcium levels and the subsequent loss of an important algae-grazing organism that helps keep blooms at bay.

Space & Earth / Environment

created Sep 28, 2011 | popularity 5 / 5 (3) | comments 0

New bacterium forms intracellular minerals

A new species of photosynthetic bacterium has come to light: it is able to control the formation of minerals (calcium, magnesium, barium and strontium carbonates) within its own organism. Published in Science on Apr ...

Biology / Cell & Microbiology

created May 11, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

CO2 makes life difficult for algae

The acidification of the world's oceans could have major consequences for the marine environment. New research shows that coccoliths, which are an important part of the marine environment, dissolve when seawater acidifies.

Space & Earth / Earth Sciences

created May 10, 2011 | popularity 4.7 / 5 (3) | comments 11

Statin RX may be overprescribed in healthy people without evidence of diseased arteries

Rolling back suggestions from previous studies, a Johns Hopkins study of 950 healthy men and women has shown that taking daily doses of a cholesterol-lowering statin medication to protect coronary arteries and ward off heart ...

Medicine & Health / Medical research

created Nov 16, 2010 | popularity 4 / 5 (3) | comments 0 | with audio podcast

Estrogen may reduce airway constriction in women patients with asthma

Female sex hormones may work with beta-agonists in reducing airway constriction, according to new bench research from the Mayo Clinic.

Medicine & Health / Diseases, Conditions, Syndromes

created May 17, 2010 | popularity 5 / 5 (1) | comments 0