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A brown blotch on a plant leaf may be a sign that the plant’s defenses are hard at work: When a plant is infected by a virus, fungus or

Bacteria and Plants Fight Alike | Life Sciences | | | | | Weizmann Wonder Wander - News, Features and Discoveries from the Weizmann Institute of Science

During the six weeks between the end of the first COVID-19 outbreak in Israel and the beginning of the second one (late April to early June of 2020), researchers at the Weizmann Institute of Science initiated a study that encompassed more than 12,000 responses from nearly 5,000 respondents to digital questionnaires, in an attempt to assess and understand the mental toll of the pandemic on the country's adult population.

During the six weeks between the end of the first COVID-19 outbreak in Israel and the beginning of the second one (late April to early June of 2020),...

Photo Credit: Image by Gerd Altmann from Pixabay Being constantly hungry, no matter how much you eat – that’s the daily struggle of people with genetic defects in the brain’s appetite controls, and it often ends in severe obesity. In a study published in Science on April 15, researchers at the Weizmann Institute of Science, together with colleagues from the Queen Mary University of London and the Hebrew University of Jerusalem, have revealed the mechanism of action of the master switch for hunger in the brain: the melanocortin receptor 4, or MC4 receptor for short. They have also cla...