Culture
The enzyme that produces DNA building blocks plays an important role when cells divide. In a new study, researchers have discovered for the first time that the so-called master switch of the enzyme can change locations - while still performing the same task.
Regardless of whether you are human, a worm or a bacterium, all beings need to create new cells in order to grow or to replace old cells. But before a cell can divide, it must copy its entire genome, that is, its DNA. This is where the enzyme in question comes into play.
Scientists at Tokyo Institute of Technology (Tokyo Tech) developed a motility-reactivation method to help determine how light-responsive changes in flagellar waveform in Volvox rousseletii, a multicellular spheroidal alga, are regulated. These results advance current understanding of how flagellar motility increased in complexity as single-celled organisms evolved into multicellular forms.
Key repeating moments in the film give viewers the information they need to understand the storyline. The scenes cause identical reactions in the viewer's brain. The results deepen our understanding of how the brain functions, how narratives work in film, and memory mechanisms impaired by conditions such as Alzheimer's disease.
Prophylactic use of the drug haloperidol does not help to prevent delirium in intensive care patients or improve their chances of survival. Therefore, there is no reason anymore to administer the drug as a preventive measure to reduce the burden of delirium. This was revealed following a three-year, large-scale study among 1,800 patients in 20 Dutch ICUs, headed by Radboud university medical center.
A bone marrow transplant is often the only therapy available to save leukaemia patients, but the risk of complications is high. In spite of devoting considerable time and effort to finding a suitable donor, nearly half of all patients experience an unwanted reaction of their immune system, which often attacks their skin and liver and in up to 50% of cases the intestines.
Astronomers reveal a new high resolution map of the magnetic field lines in gas and dust swirling around the supermassive black hole at the centre of our Galaxy, published in a new paper in Monthly Notices of the Royal Astronomical Society. The team, led by Professor Pat Roche of the University of Oxford, created the map, which is the first of its kind, using the CanariCam infrared camera attached to the Gran Telescopio Canarias sited on the island of La Palma.
ROCHESTER, Minn. -- When people are suffering from a chronic medical condition, they may place their hope on treatments in clinical trials that show early positive results. However, these results may be grossly exaggerated in more than 1 in 3 early clinical trials, reports a new study led by Mayo Clinic and published today in Mayo Clinic Proceedings.
A recent study published in Health Education Research suggests that lay-health workers may be able to significantly reduce readmissions rates to hospitals for high risk patients following surgery.
A lay-health worker is someone who has received some training to promote health or to carry out some health-care services and who acts as a link between formal health services and patients, especially those at high-risk. In the United States lay-health worker programs first emerged as part of the Great Society domestic policies in the 1960s.
Republicans who believe that God is highly engaged with humanity are like Democrats -- more liberal -- when it comes to social and economic justice issues, according to a Baylor University study.
"Partisanship explains only so much. Images of God reveal deep moral perspectives that affect the ways in which Americans understand justice, so much so that they can blur the lines of partisan politics," said researcher Robert Thomson, Ph.D., Postdoctoral Research Fellow at Rice University.
Finding a solution to the causes and impacts of marine litter is now widely recognised as one of the major environmental challenges of our time. And one of the key elements required to address the issue is encouraging people of all ages to move away from the current throwaway culture.
Now research led by the University of Plymouth has revealed that designing systematic and innovative education tools to teachers and students can make a significant and positive contribution to their understanding of the problem - and their willingness to do something about it.
A new paper in the Oxford Art Journal examines the significance of a newly discovered recoding of Andy Warhol's famous 1963 interview with Gene Swenson, published in ARTnews under the heading "What is Pop Art?" The printed interview omitted a large part of the recording, which actually starts with the question "What do you say about homosexuals?" Warhol's early and explicit on-the-record statements about Pop's relationship to homosexuality were suppressed from publication.
In a race to prevent and control rust disease epidemics, scientists have positioned themselves to better understand how rust fungi infect crops and evolve virulence.
What happens when six graduate students in different fields, who happen to be friends, put their heads together on an emerging issue in climate change?
They get published in a major journal.
CORVALLIS, Ore. - How a person responds to a difficult life event such as a death or divorce helps shape the development of their wisdom over time, a new study from Oregon State University suggests.
TORONTO, February 20, 2018 - Alcohol use disorders are the most important preventable risk factors for the onset of all types of dementia, especially early-onset dementia. This according to a nationwide observational study, published in The Lancet Public Health journal, of over one million adults diagnosed with dementia in France.
This study looked specifically at the effect of alcohol use disorders, and included people who had been diagnosed with mental and behavioural disorders or chronic diseases that were attributable to chronic harmful use of alcohol.