A medical staff member taking care of a newborn baby at a hospital in Danzhai, in China's southwestern Guizhou province. (Photo by AFP) / - LEHTIKUVA / AFP

According to a study, the changes in the human sex ratio at birth, defined as the percentage of newborn boys has been associated with the presence of air and water pollutants, but are not predictably linked with seasonality or weather.

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The BILITI Electric GMW Taskman electric vehicle, with solar panels, is displayed after being introduced at AutoMobility LA on November 17, 2021. LEHTIKUVA / Getty Images / AFP

Cost-slashing innovations are underway in the electric power sector and could give electricity the lead over fossil-based combustion fuels in the world's energy supply by mid-century, according to Potsdam Institute for Climate Impact Research (PIK)

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A healthcare worker conducts a polymerase chain reaction (PCR) Covid-19 test on a traveller at OR Tambo International Airport in Johannesburg on November 27, 2021, after several countries banned flights from South Africa following the discovery of a new Covid-19 variant Omicron. LEHTIKUVA / AFP

The South African doctor who first raised an alarm over Omicron states that the new coronavirus strain has significantly more mutations, as compared to the Delta or Beta variants of COVID-19 which can be easily missed if one is not clinically aware of its symptoms.

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When you receive an important file to work on, you keep it safe to remember about it. Similarly, our memories first land in one part of our brain and then shift to another for long-term storage. This process is known as memory consolidation. Kyoto University's Akihiro Goto researched this process using mouse brains in order to manipulate memories.

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A doctor vaccinates a patient against Covid-19 at a vaccination center in Sonthofen, southern Germany, on November 30, 2021. LEHTIKUVA / AFP

Biomedical engineers of Duke University have developed a test to quickly and easily assess how well a person's neutralizing antibodies fight multiple variants of COVID-19 like Delta and the new Omicron variant.

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A health worker prepares a dose of the Pfizer vaccine for the Covid-19 coronavirus. LEHTIKUVA / AFP

The pharmaceutical companies Pfizer and BioNTech on Saturday issued a statement stating that they are not sure whether their vaccines would be able to help in the treatment of the new COVID-19 variant 'Omicron'.

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LEHTIKUVA / AFP

A new research by Rutgers University has found that the COVID-19 saliva testing kits that include a novel preservative can also be used to measure microscopic organisms in the mouth. This has enabled the study of the relationship between mouth and lung microbes and the SARS-CoV-2 virus that can develop new treatments.

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As autumn is left behind and winter begins, some people start suffering from the so called “winter depression” associated with the lack of light in the Northern Circles. The amount of light is decreasing at a surprisingly fast rate and at some period sunlight is only seen for a couple of hours a day.

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26 November 2021, Hessen, Frankfurt Main: Passengers wait at Frankfurt Airport.

One out of five destinations continue to have their borders completely closed as new surges of COVID-19 impact the restart of international tourism. The latest research shows that still 98% of all destinations have some kind of travel restrictions in place.

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