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Evading the uncertainty principle in quantum physics

Eurekalert - May 06 2021 - 00:05
In quantum mechanics, the Heisenberg uncertainty principle dictates that the position and speed of an object cannot both be known fully precisely at the same time. In a study published this week in Science, researchers show that two vibrating drumheads, the size of a human hair, can be prepared in a quantum state which evades the uncertainty principle for the first time.
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Rooted tree key to understanding bacterial evolution, new study suggests

Eurekalert - May 06 2021 - 00:05
An international team of researchers led by Dr Tom Williams from the University of Bristol's School of Biological Sciences have found a new way to interpret the evolution of Bacteria.
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What can a dinosaur's inner ear tell us? Just listen

Eurekalert - May 06 2021 - 00:05
New Haven, Conn. -- If paleontologists had a wish list, it would almost certainly include insights into two particular phenomena: how dinosaurs interacted with each other and how they began to fly.
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Dinosaurs that hunted in the dark

Eurekalert - May 06 2021 - 00:05
A new study led by Wits University scientist, Professor Jonah Choiniere, used CT scanning and detailed measurements of the relative size of the eyes and inner ears of nearly 100 living bird and extinct dinosaur species, to investigate how the sensory adaptations of these two groups compared. The team found that a diminutive theropod named Shuvuuia, had extraordinary hearing and night vision, suggesting that Shuvuuia could have hunted in complete darkness.
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Protected by nanobrushes

Eurekalert - May 06 2021 - 00:05
The ability of antibodies to recognize specific cancer cells is used in oncology to specifically target those cells with small active agents. Research published in the journal Angewandte Chemie shows that scientists have now built a transport system that delivers even large protein-based drugs into cancer cells. This study demonstrates how proteins can arrive at their target intact, protected from destructive proteases by polymer brushes.
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Ice core data show why, despite lower sulfur emissions in US and Western Europe, air pollution is

Eurekalert - May 06 2021 - 00:05
Ice core data from Greenland shows why air pollution is reducing slower than sulfur emissions reductions. As cloud droplets become less acidic, the chemical reaction that turns sulfur dioxide into sulfate aerosol gets more efficient. These results can improve the models that project air quality and climate change.
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COVID-19 vaccine is associated with fewer asymptomatic SARS-CoV-2 infections

Eurekalert - May 06 2021 - 00:05
St. Jude Children's Research Hospital COVID-19 screening and vaccination program for employees offers early evidence that vaccine protects against asymptomatic infection, which has fueled the pandemic.
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Asthma attacks plummeted among Black and hispanic/latinx individuals during the COVID-19 pandemic

Eurekalert - May 06 2021 - 00:05
Asthma attacks account for almost 50 percent of the cost of asthma care which totals $80 billion each year in the United States. Asthma is more severe in Black and Hispanic/Latinx patients, with double the rates of attacks and hospitalizations as the general population.
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By age 10, retinoblastoma patients' learning and life skills rebound

Eurekalert - May 06 2021 - 00:05
St. Jude Children's Research Hospital researchers studied how retinoblastoma survivors fared years later at home and at school.
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Researchers speed identification of DNA regions that regulate gene expression

Eurekalert - May 06 2021 - 00:05
St. Jude Children's Research Hospital scientists have developed a highly efficient method to address a major challenge in biology--identifying the genetic 'switches' that regulate gene expression.
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In a cell-eat-cell world calcium ions activate 'eat-me' signal in necrotic cells

Eurekalert - May 06 2021 - 00:05
Researchers discovered what activates the 'eat-me' signal that prompts the elimination of necrotic cells.
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Healthy young adults who had COVID-19 may have long-term impact on blood vessels and heart health

Eurekalert - May 06 2021 - 00:05
New research published in Experimental Physiology highlight the possible long term health impacts of COVID-19 on young, relatively healthy adults who were not hospitalized and who only had minor symptoms due to the virus.
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Physicists describe new type of aurora

Eurekalert - May 06 2021 - 00:05
The famed northern and southern lights have been studied for millennia, but they still hold secrets. In a new study, physicists led by the University of Iowa describe a new phenomenon they call "diffuse auroral erasers," in which patches of the background glow are blotted out, then suddenly intensify and reappear.
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Physicists find a novel way to switch antiferromagnetism on and off

Eurekalert - May 06 2021 - 00:05
MIT physicists have found a novel way to switch antiferromagnetism on and off, which could lead to faster, more secure memory storage.
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Blocking viruses' exit strategy

Eurekalert - May 06 2021 - 00:05
The Marburg virus, a relative of Ebola, likewise causes a dangerous and often fatal disease. In a study co-led by the University of Pennsylvania's Ronald Harty, an experimental antiviral drug, which prevents the virus from exiting host cells and spreading to new cells, showed promising results. The researchers are also encouraged by similarities in the drug's response against SARS-CoV-2, the virus that causes COVID-19.
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New boost in quantum technologies

Eurekalert - May 06 2021 - 00:05
In an international collaboration, researchers at the University of Stuttgart were able to detect quantum bits in two-dimensional materials for the first time. Nature Materials covers this in its May 6, 2021 issue.
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The COVID-19 pandemic: Even mild disease impacts mental health

Eurekalert - May 06 2021 - 00:05
A significant level of symptoms of depression, anxiety and post-traumatic stress may follow COVID-19 independent of any previous psychiatric diagnoses. Exposure to increased symptomatic levels of COVID-19 may be associated with psychiatric symptoms after the acute phase of the disease. This is the largest study to evaluate depressive, anxiety, and post-traumatic stress symptoms in tandem among patients who had mild COVID-19 disease. The findings shed light on a significant subpopulation at risk for mental symptoms.
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Research breakthrough in the fight against cancer

Eurekalert - May 06 2021 - 00:05
A team of researchers at the Center for Bioactive Delivery at the University of Massachusetts Amherst's Institute for Applied Life Sciences has engineered a nanoparticle that has the potential to revolutionize disease treatment, including for cancer.
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India's polio vaccination provides valuable insights for mass vaccination campaigns

Eurekalert - May 06 2021 - 00:05
As India urgently scales up its vaccination campaign for the COVID-19 virus, a new study which examined the country's successful program to eliminate polio provides guidance on how this and future mass immunization campaigns can be successful, especially in vaccinating hard to reach groups.
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Archaeal enzyme that produces membrane lipids is spectacularly promiscuous

Eurekalert - May 06 2021 - 00:05
Cells of all life forms are surrounded by a membrane that is made of phospholipids. One of these are the cardiolipins. When studying the enzyme that is responsible for producing cardiolipins in archaea (single-cell organisms that constitute a separate domain of life), biochemists at the University of Groningen made a surprising discovery. A single archaeal enzyme can produce a spectacular range of natural and non-natural cardiolipins, as well as other phospholipids.
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