According to a new study, exosomes, or small bubbles that transport molecules from one cell to another, can be effective vehicles for delivering cancer treatments to tumours.
The United Nations climate change conference concluded here Saturday after a one-day extension, with negotiators agreeing on a new global pact to tackle climate change.
One billion people across the world could be affected by extreme heat stress - a potentially fatal combination of heat and humidity - if the global temperature reaches the 2 degrees Celsius threshold
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