Reference Terms
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Progesterone
Progesterone is a C-21 steroid hormone involved in the female menstrual cycle, pregnancy (supports gestation) and embryogenesis of humans and other species.
Note: The above text is excerpted from the Wikipedia article "Progesterone", which has been released under the GNU Free Documentation License.
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Science News
November 9, 2024
Nov. 8, 2024 — Scientists believe individuals of the most recently discovered 'hominin' group (the Denisovans) that interbred with modern day humans passed on some of their genes via multiple, distinct ...
Nov. 8, 2024 — Tool use isn't unique to humans. Chimpanzees use sticks as tools. Dolphins, crows, and elephants are known for their tool-use abilities, too. Now a report highlights elephants' remarkable skill in using a hose as a flexible shower head. As an ...
Nov. 7, 2024 — It's common knowledge that our brains -- and, specifically, our brain cells -- store memories. But a team of scientists has discovered that cells from other parts of the body also perform a memory function, opening new pathways for understanding how ...
Nov. 7, 2024 — Researchers have used ancient DNA to challenge long-held interpretations of the people of Pompeii. Contrary to physical appearances, the DNA evidence revealed unexpected variations in gender and kinship, revising the story as written since 1748. The ...
Latest Headlines
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Nov. 8, 2024 — New research reveals for the first time how a major Antarctic ice shelf has been subjected to increased melting by warming ocean waters over the last ...
Nov. 7, 2024 — Encouraging quietness during zoo trips can help visitors better appreciate their inhabitants and lead to more fulfilling, respectful and informative ...
Nov. 7, 2024 — A new study has exposed for the first time how inhabitants of the smallest countries globally, contributing least to climate change, already bear the ...
Nov. 8, 2024 — Highland deer mice and their lowland cousins ventured on a simulated seven-week ascent to 6,000 meters. By tracking how the mice responded to cold stress and progressively lower oxygen levels, the ...
Nov. 8, 2024 — Biologists found what makes some types of tomatoes more heat-tolerant, yielding insights that could help crops adapt to climate ...
Nov. 8, 2024 — A new study challenges theories regarding the origins of a significant transition through the Earth's ice ages. The research provides fresh insights into the ocean's role in climate during the ...
Nov. 8, 2024 — Blocking a protein that imports lactic acid, a metabolic byproduct of cancer cells, reinvigorated exhausted T cells and led to improved tumor control ...
Nov. 8, 2024 — Prostate cancer is the second most common cancer in men worldwide. Researchers have investigated a new strategy for the development of treatment options that not only slow tumor growth, but also ...
Nov. 8, 2024 — Hydrogen-powered planes are set to take wing around the world in the future. To make this possible, engineers have to develop the jet engines that will power them. Experiments by researchers are now ...
Nov. 8, 2024 — Scientists investigated how an inherited genetic variation common among East Asians contributes to drug resistance in cancer cells, driving more ...