Earth
Leipzig, Brussels. The current reform proposals of the EU Commission on the Common Agricultural Policy (CAP) are unlikely to improve environmental protection, say researchers led by the German Centre for Integrative Biodiversity Research (iDiv), the Helmholtz Centre for Environmental Research (UFZ) and the University of Göttingen in the journal Science. While the EU has committed to greater sustainability, this is not reflected in the CAP reform proposal.
NASA's Aqua satellite passed over the South China Sea and saw Tropical Storm Wipha hugging the southern coast of China.
ITHACA, N.Y. - For the first time, scientists have unraveled genetic changes that cause rapid fish evolution due to intense harvesting - changes that previously had been invisible to researchers.
Over recent decades, many commercially harvested fish have grown slower and matured earlier, which can translate into lower yields and a reduced resilience to overexploitation. Scientists have long suspected rapid evolutionary change in fish is caused by intense harvest pressure.
The term "fake news" has been popularized by President Donald Trump in recent years, and while its meaning has been hotly debated, the spreading of false information to fulfill a political agenda is far from a new concept around the world. Exploring the perception of the "fake news" phenomenon is critical to combating the ongoing global erosion of trust in the media according to a study co-authored by a University of Houston researcher.
Around 22,000 people will be diagnosed this year in the US with acute myeloid leukemia (AML), the second most common type of leukemia diagnosed in adults and children, and the most aggressive of the leukemias. Less than one third of AML patients survive five years beyond diagnosis.
Researchers from Australia's Monash University have discovered a key reason why this disease is so difficult to treat and therefore cure.
This direct-to-consumer stem cell marketplace has come under increasing scrutiny, but relatively little is known about the clinics that deliver these treatments or how the treatments they offer align with the expertise of the practitioners providing them. In a paper published August 1 in the journal Stem Cell Reports, investigators offer a detailed characterization of nearly 170 stem cell businesses across six southwestern states.
In certain turtle species, the temperature of the egg determines whether the offspring is female or male. But now, new research shows that the embryos have some say in their own sexual destiny: they can move around inside the egg to find different temperatures. The study, publishing August 1 in the journal Current Biology, examines how this behavior may help turtles offset the effects of climate change.
Habitat destruction results in wildlife populations that are small, made up of relatives, and have low genetic variation.
Breeding between relatives (inbreeding) has harmful effects called 'inbreeding depression', often experienced as a shortened life, a poor breeder, or even death.
Not surprisingly then, most animals avoid breeding with their relatives. But when populations become too small, it becomes impossible to find a mate who is not some kind of relation.
CINCINNATI--An international team led by researchers from the University of Cincinnati and Japan's Keio and Hiroshima universities has discovered the energy production mechanism of cancerous cells that drives the growth of the nucleolus and causes tumors to rapidly multiply.
The findings, published Aug. 1 in the journal Nature Cell Biology, could lead to the development of new cancer treatments that would stop tumor growth by cutting the energy supply to the nucleolus.
Computing--"Seeing" in real time
The remains of a microscopic drop of ancient seawater has assisted in rewriting the history of Earth's evolution when it was used to re-establish the time that plate tectonics started on the planet.
Some math problems are so complicated that they can bog down even the world's most powerful supercomputers. But a wild new frontier in computing that applies the rules of the quantum realm offers a different approach.
TAMPA, Fla. (August 1, 2019) - Elderly cancer patients who are HIV-positive, particularly those with prostate and breast cancers, have worse outcomes compared to cancer patients in the same age range who do not have HIV. A Moffitt Cancer Center researcher, in collaboration with investigators at the National Cancer Institute, Duke University, and Johns Hopkins Bloomberg School of Public Health, took a closer look at the disparity, factoring in whether or not cancer treatment had an impact on outcomes among this patient population.
The Mauna Loa Observatory in Hawai'i recently recorded the highest concentration of carbon dioxide, or CO2, levels in human history. In fact, the last time CO2 levels surpassed 400 parts per million was during the Pliocene, a geological epoch between two and five million years ago, when oceans surged 50 feet higher and small icecaps barely clung to the poles.
"The Pliocene wasn't a world that humans and our ancestors were a part of," said University of Arizona associate professor of geosciences Jessica Tierney. "We just started to evolve at the end of it."
It is believed that carbon dioxide emissions into the atmosphere are mainly regulated by 'direct' economic instruments - the carbon tax and the Emissions Trading System (ETS). However, a comparative analysis has shown that 'indirect' instruments, such as excise taxes on motor fuel and other energy taxes, did not yield any lesser impact than their 'direct' counterparts, and, over time, were even more effective.