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The Royal Swedish Academy of Sciences has awarded the Nobel Prize in Chemistry 2023 to Moungi G. Bawendi, Louis E. Brus, and Alexei I. Ekimov "for the discovery and synthesis of quantum dots." Quantum dots are tiny nanoparticles that diffuse their light from televisions and LED lights, and can also guide surgeons when removing tumor tissue, among many other applications.
A machine learning model can use data on people's age, duration of smoking addiction and number of cigarettes smoked per day to predict lung cancer risk and identify who needs to be screened, according to a new study published in PLOS Medicine.
A study has published a phylogenetic analysis to explore the evolution of same-sex sexual behaviour in the animal world. The research, published in the journal Nature Communications, is led by the Experimental Station of Arid Zones (EEZA) of the Spanish National Research Council (CSIC).
The Royal Swedish Academy of Sciences has awarded the 2023 Nobel Prize in Physics to Pierre Agostini, Ferenc Krausz and Anne L'Huillier for developing "experimental methods generating attosecond light pulses". These advances made it possible to observe the motion of particles in atoms on the shortest time scale captured by humans. An attosecond is a unit of time equivalent to one trillionth of a second, roughly the time it takes light to travel the diameter of an atom.
The Karolinska Institute has awarded the Nobel Prize in Medicine or Physiology to Katalin Karikó and Drew Weissman for their groundbreaking discoveries, which have radically changed our understanding of how mRNA interacts with our immune system, and made it possible to develop vaccines at unprecedented speed during the covid-19 pandemic.
A meta-analysis analyzing the results of 18 clinical trials concludes that influenza vaccination may produce more adverse reactions in women than in men. According to the authors, whose research is published in the Journal of Epidemiology & Community Health, "the data suggest that most reactions are mild, self-limited, and rarely serious." "Transparent communication about the increased risk for women could help maintain long-term confidence in health authorities and vaccines," they add.
A new study in mice, published in Science Immunology, challenges the so-called 'hygiene hypothesis', the idea that a contributing factor to allergies is that there is an under-stimulated immune system that has not seen enough exposure to germs from current hygienic conditions. In the research, laboratory mice still developed allergies when exposed to various microbes.
The State Meteorological Agency (AEMET) has issued an information note warning of "exceptionally high" temperatures for this time of year in Spain, especially between Friday 29 September and Monday 2 October.
On the eve of an episode of unusually high temperatures for this time of year, it is time to take stock of the summer we have experienced, characterised by a succession of extreme weather phenomena in the form of heat waves, drought and torrential rains. The seriousness and complexity of these problems and their repercussions in many areas, especially on health, make it urgent to set up the Health and Climate Change Observatory approved last July, with a stable and independent structure.
Chronic exposure to various air pollutants has been linked to an increased risk of stroke, but the short-term effects have been less well studied. A review of 110 papers and more than 18 million stroke cases shows that recent exposure - in the five days prior to stroke - also increases the likelihood of stroke. The results are published in the journal Neurology.