Tag Archives: كوربيديا للاخبار

How can scientists update coronavirus vaccines for omicron? A microbiologist answers 5 questions about how Moderna and Pfizer could rapidly adjust mRNA vaccines

Some vaccines use mRNA to make copies of the triangular red spike proteins to induce immunity. Juan Gaertner/Science Photo Library via Getty Images Deborah Fuller, University of Washington If the omicron variant of the coronavirus is different enough from the original variant, it’s possible that existing vaccines won’t be as effective as they have been. If so, it’s likely that …

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Qué pasa con la vacunación de covid-19 a niños menores de 6 años

Shutterstock / Yuganov Konstantin Sergio Flores Villar, Universitat de Barcelona Teniendo en cuenta la razón de ser de la vacuna frente a la covid-19, la naturaleza del virus y el comportamiento del niño ante la enfermedad, no considero prioritario incluir a los menores de 6 años en un programa de vacunación masiva. Ni prioritario ni, tal vez, ético, dado que …

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Ukraine: crisis between Russia and the west in the region has been brewing for 30 years

Liana Semchuk, University of Oxford Russian president, Vladimir Putin, and Joe Biden, the US president, have held a two-hour “virtual summit” to discuss the escalating tensions in and around Ukraine. Biden voiced concerns about the build-up of Russian troops on the Ukraine border, while Putin sought assurances against the further eastward expansion of Nato. Little was reportedly settled, but the …

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Quantum entanglement: what it is, and why physicists want to harness it

Two particles are said to be entangled when one cannot be perfectly described without information about the other being included. Shutterstock/ezphoto Nicholas Bornman, University of the Witwatersrand “Quantum entanglement” is one of several plot devices that crops up in modern sci-fi movies. Fans of the Marvel superhero movies, for instance, will be familiar with the idea of different time lines …

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Claves para educar a los jóvenes en relaciones sanas desde el primer amor

shutterstock. Shutterstock / ChrisChips Amapola Povedano-Díaz, Universidad Pablo de Olavide Las primeras aproximaciones de los seres humanos entre sí buscando interacciones con un claro interés sexual o amoroso suelen ocurrir durante la adolescencia. En esta investigación se señala que son las primeras experiencias las que definen los patrones de comportamiento en las relaciones de pareja en la edad adulta, sobre …

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China’s long-term problems are forcing it to rethink the whole economy

Stuck in first gear. Yannes Kiefer/Unsplash Kent Matthews, Cardiff University The People’s Bank of China is encouraging Chinese banks to lend more to businesses and consumers by cutting the proportion of deposits that they have to hold as reserves by 0.5 percentage points to an average of 8.4% from December 15. It follows a similar cut in July, and is …

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Afghanistan whistleblower’s account of evacuation was right – trying to get my colleagues out was chaos

Evacuees from Kabul on their way to Poland via Uzbekistan. Marcin Obara / EPA-EFE Brad K. Blitz, UCL The testimony of a whistleblower about the UK’s withdrawal from Afghanistan describes an ill-equipped, chaotic evacuation. Raphael Marshall, a former Foreign Office diplomat, suggested that out of an estimated 75,000-150,000 people who applied for evacuation under the Leave Outside the Rules scheme, …

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Does vaping really damage DNA and increase the risk of cancer?

Caitlin Notley, University of East Anglia and Konstantinos Farsalinos, University of West Attica Vapers experience DNA changes, according to a recent paper published in Nature, and the changes are similar to those seen in smokers – although much less pronounced. Crucially, this evidence was based on a few people by examining changes in their DNA at the time of the …

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El aterrador mosaico de formas de violencia contra mujeres y niñas

Shutterstock / asiandelight MªCruz Díaz de Terán Velasco, Universidad de Navarra El 25 de noviembre es el día que las Naciones Unidas ha declarado como Día Internacional de la Eliminación de la Violencia contra la Mujer. En muchas ocasiones, este tipo de violencia tiende a reducirse al maltrato físico, pero las acciones y los tipos que abarca van mucho más …

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Diabetes drug may help improve symptoms for people with heart failure – new research

Half of people with heart failure have a type called preserved ejection fraction. Explode/ Shutterstock Vassilios Vassiliou, University of East Anglia and Vasiliki Tsampasian, University of East Anglia Heart failure is one of the most common cardiac diseases, affecting more than 30 million people worldwide. It happens when the heart can’t deliver enough blood and oxygen to meet the demands …

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