دراسة تشكّك في فعالية علاج شائع بالحقن لآلام الأوتار المزمنة
أكدت الدراسة أن قرار استخدام الحقن يجب أن يُفصّل حسب ظروف كل مريض وأهدافه العلاجية، لا سيما عندما تكون الحاجة إلى تخفيف سريع للأعراض أكثر إلحاحاً من تحقيق نتائج طويلة الأمد.
Science
UN Reports Warn of Large-Scale Damage to Earth’s Ice from Climate Change
Exceeding 1.5C of global warming will have "irreversible" consequences for glaciers, sea ice and the Earth's frozen regions, two UN reports warned on Monday, calling for urgent action. The landmark 2015 Paris Agreement commits the world to limiting warming to well below 2C and pursuing efforts to hold it at 1.5C to try to avoid the worst effects of climate change. One of the reports said overshooting the 1.5C target "will bring large-scale and in many cases irreversible impacts" for the cryosphere -- Earth's ice in all its forms.
Science
Challenging Scientific Assumptions: Blood Remnants Found in 115-Million-Year-Old Dinosaur Bones
An international research team has discovered fossilized red blood cells, hemoglobin-derived biomolecules and amino acids from collagen protein inside the bones of a dinosaur that lived approximately 115 million years ago in Brazil. The unprecedented discovery opens new avenues for studying ancient life and challenges existing assumptions about how long fossils can preserve their biological components.
Science
فيديو | أم مسنة تستنجد .. ابني طردني من بيتي! | هذا اليوم
فيديو | أم مسنة تستنجد .. ابني طردني من بيتي