Earth
Hematopoiesis is the process of forming blood cells, which occurs predominantly in the bone marrow. The bone marrow produces all types of blood cells: red blood cells, platelets, and white blood cells (leucocytes). One of the most prominent white blood cell types are neutrophils - they help the body fight against infections and are the most abundant subpopulation of leukocytes. They are short-lived and highly mobile, and can enter parts of tissue where other cells/molecules cannot.
Adolescent girls who self-injure feel that they receive more negative feedback than they actually receive, and are more sensitive to "thumbs down" responses, compared to other adolescent girls. These are the findings presented by Irene Perini, researcher at Center for Social and Affective Neuroscience (CSAN) at Linköping University, in a recently published article.
Salt marshes are important habitats for fish and birds and protect coasts under sea level rise against stronger wave attacks. However, salt marshes themselves are much more vulnerable to these global change threats than previously thought. Stronger waves due to sea level rise can not only reduce the marsh extent by erosion of the marsh edge, but these waves hamper plant (re-)establishment on neighboring tidal flats, thus making it much more difficult for the marsh to recover and grow again.
Restricting the amount of inshore potting for crab and lobster within marine protected areas (MPAs) can generate a "win-win" for both fishermen and the marine environment, according to the first major study exploring the issue.
The study showed that crab caught in areas of low potting levels were of greater average weight, meaning that there was a potential incentive for fishermen to fish less.
However, in areas consistently exposed to medium and high levels of potting, the crab weighed less than those caught in areas with low potting and unfished control areas.
thaca, NY--In nature, as in life, there's often more than one way to solve a problem. That includes the evolutionary process. A new study in Evolution Letters finds that different bird species in the same challenging environment--the highly saline ecosystem of tidal marshes along ocean shores--were able to evolve unique species-specific ways to address the same problem.
If China takes strong measures to reduce its ozone pollution now, it could save hundreds of thousands of lives in the long run, according to a new study led by researchers at Columbia University's Lamont-Doherty Earth Observatory.
"Air pollution is a major problem in China right now," said lead author Daniel Westervelt, an associate research scientist at Lamont-Doherty. "It's a very serious health risk. So it's important to think about what changes can be made to make progress on this problem."
NASA's Aqua satellite passed over the Northwester Pacific Ocean after the sixth tropical depression formed. Tropical Depression Danas formed northeast of the Northern Philippines and was already affecting the country.
When it comes to mating displays, a little persistence can go a long way, at least for the greater sage grouse. In "Hidden Markov Models Reveal Tactical Adjustment of Temporally Clustered Courtship Displays in Response to the Behaviors of a Robotic Female," published in The American Naturalist, Anna C. Perry and her colleagues at the University of California in Davis (USA), the Max Planck Institute in Leipzig (Germany) and the University of Florida (USA) use a custom-built statistical model to understand an underexplored dimension of greater sage grouse mating display behavior.
WASHINGTON, D.C., July 16, 2019 -- Floating air particles following disasters and other largescale geological events can have a lasting impact on life on Earth. Volcanic ash can be projected up to the stratosphere and halt air traffic by lingering in the atmosphere for months. Particles from industrial accidents have the potential to travel full hemispheres before falling to the ground.
Since the emergence of molecular genetics more than fifty years ago, scientists have tried to isolate haploid mammalian cells, that is, cells with half the number of chromosomes contained in somatic cells. Haploid cells are a powerful genetic tool to analyse gene function. In the past decade, a number of researchers finally succeeded in developing haploid cell line cultures. However, these cell lines are unstable and have a tendency for diploidisation.
CHAMPAIGN, Ill. -- A new study of 736 low-income pregnant women in Illinois found that more than one-third of those who reported thoughts of self-harm did not have elevated levels of depression, according to a commonly used health questionnaire.
A study led by the University of Birmingham has painted a shaming picture of neglect and discrimination shown towards the homeless when accessing UK health services.
Researchers interviewed 22 homeless people aged over 18 at three Midland homeless shelters in order to gauge their experience of accessing NHS services following anecdotal reports that the homeless were being denied access and faced negative experiences.
It's a common sight on casino floors: patrons jumping from slot machine to slot machine before eventually hunkering down at a game that's due for the next big payout. But can players - even the regulars who frequent a particular property - really tell the difference between the house edge on one game from that of another?
Nope. At least not according to a series of recent studies led by Anthony Lucas, a UNLV Hospitality College professor and former gaming industry operations analyst.
Researchers from the Garvan Institute of Medical Research have developed a new method to spot rare immune cells that are reactive against cancer cells, from within a patient's own immune system.
The patented 'RAGE-seq' method enables scientists to track how immune cells evolve inside tumour tissue for the first time, revealing unprecedented insight into how to better arm the immune system to target cancer. The technique can be likened to a barcode tracker, able to scan detailed information from thousands of immune cells at a time.
PROVIDENCE, R.I. [Brown University] -- A new study finds that climate change will put many conifer species native to small islands around the world on the road to extinction by 2070, even after allowing for some realistic wiggle room in the range of climate conditions those species might be able to withstand.