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ScienceDaily: Top Environment News |
Synthetic organelle shows how tiny puddle-organs in our cells work Posted: 20 Sep 2018 02:51 PM PDT Imagine your liver being just a big puddle. Some organelles in your cells are exactly that including prominent ones like the nucleolus. Now a synthetic organelle engineered in a lab shows how such puddle organs can carry out complex life-sustaining reaction chains. |
Commitment to democratic values predict climate change concern, study finds Posted: 20 Sep 2018 01:10 PM PDT In a new study comparing climate change attitudes across 36 countries, including the United States, commitment to democratic values is the strongest predictor of climate change concern globally. |
Preventing a dengue outbreak at the 2020 Summer Olympics Posted: 20 Sep 2018 01:10 PM PDT New controls and frameworks are recommended to detect dengue and other infectious diseases and help prevent their spread during the 2020 summer Olympics and Paralympics being held in Tokyo, researchers report. |
Kiwifruit duplicated its vitamin C genes twice, 50 million and 20 million years ago Posted: 20 Sep 2018 01:10 PM PDT Today's kiwifruit contains about as much vitamin C as an orange -- the result of the kiwifruit's ancestors' spontaneously duplicating their DNA in two separate evolutionary events approximately 50-57 million and 18-20 million years ago. |
Fat from 558 million years ago reveals earliest known animal Posted: 20 Sep 2018 01:09 PM PDT Scientists have discovered molecules of fat in an ancient fossil to reveal the earliest confirmed animal in the geological record that lived on Earth 558 million years ago. |
What makes a mammal a mammal? Our spine, say scientists Posted: 20 Sep 2018 01:09 PM PDT Mammals are unique in many ways. We're warm-blooded and agile in comparison with our reptilian relatives. |
A naturally occurring antibiotic active against drug-resistant tuberculosis Posted: 20 Sep 2018 01:08 PM PDT Researchers have discovered that a naturally occurring antibiotic called kanglemycin A is effective against Mycobacterium tuberculosis, the bacteria that cause tuberculosis, even in drug-resistant strains. |
How lactoferrin clamps down on free roaming iron ions to stop nefarious effects on cells Posted: 20 Sep 2018 08:55 AM PDT What prevents our cells being damaged due to overexposure to iron ions is a protein called lactoferrin, known for its ability to bind tightly to such ions. Researchers used a combined experimental and molecular dynamics simulation to study the changes in the structure of lactoferrin as it binds to iron ions. |
Hookworms employ live fast/die young strategy in fur seal pup hosts Posted: 20 Sep 2018 08:55 AM PDT Hookworms exploit a live fast/die young strategy in their South American fur seal pup hosts. As a result, they often kill their host, rather than finding a happy equilibrium. Scientists are concerned that this type of hookworm infection could eventually pose a risk to critically endangered populations of fur seals. |
Intestines modify their cellular structure in response to diet Posted: 20 Sep 2018 08:55 AM PDT Body organs such as the intestine and ovaries undergo structural changes in response to dietary nutrients that can have lasting impacts on metabolism, as well as cancer susceptibility. |
Mathematics meets biology to uncover unexpected biorhythms Posted: 20 Sep 2018 08:55 AM PDT A novel mathematical approach has uncovered that some animal cells have robust 12-hour cycles of genetic activity, in addition to circadian or 24-hour cycles. |
Fish-rich diets in pregnancy may boost babies' brain development Posted: 20 Sep 2018 07:22 AM PDT Women could enhance the development of their unborn child's eyesight and brain function by regularly eating fatty fish during pregnancy. This is the suggestion from a small-scale study. The research supports previous findings that show how important a prospective mother's diet and lifestyle choices are for the development of her baby. |
Glacial engineering could limit sea-level rise, if we get our emissions under control Posted: 20 Sep 2018 07:21 AM PDT Targeted engineering projects to hold off glacier melting could slow down ice-sheet collapse and limit sea-level rise, according to a new study. While an intervention similar in size to existing large civil engineering projects could only have a 30 percent chance of success, a larger project would have better odds of holding off ice-sheet collapse. But the researchers caution that reducing emissions still remains key to stopping climate change and its dramatic effects. |
Southeast Asian population boomed 4,000 years ago Posted: 20 Sep 2018 07:21 AM PDT Researchers have uncovered a previously unconfirmed population boom across South East Asia that occurred 4,000 years ago, thanks to a new method for measuring prehistoric population growth. |
Scientists quantify the vast and valuable finds stored on museum shelves Posted: 20 Sep 2018 07:21 AM PDT Researchers estimates only 3 to 4 percent of recorded fossil locations from across the globe are currently accounted for in published scientific literature. |
Hidden costs of cobalt mining in DR Congo Posted: 20 Sep 2018 07:21 AM PDT Cobalt mining comes at a great cost to public health in the Democratic Republic of the Congo. New research reveals that children are particularly vulnerable: their urine and blood samples contain high concentrations of cobalt and other metals. |
Basking sharks can jump as high and as fast as great whites Posted: 20 Sep 2018 07:21 AM PDT These gentle giants, which can grow up to 10 m in length, have been recorded jumping out of the water as high and as fast as great white sharks. Marine biologists are unsure why they do this, but have pointed to this phenomenon as evidence of how much we still have to learn about marine life. |
Physicists train robotic gliders to soar like birds Posted: 20 Sep 2018 07:16 AM PDT Scientists know that upward currents of warm air assist birds in flight. To understand how birds find and navigate these thermal plumes, researchers used reinforcement learning to train gliders to autonomously navigate atmospheric thermals. The research highlights the role of vertical wind accelerations and roll-wise torques as viable biological cues for soaring birds. The findings also provide a navigational strategy that directly applies to the development of UAVs. |
New test procedure accelerates the diagnosis of multi-resistant hospital pathogens Posted: 20 Sep 2018 07:11 AM PDT The diagnosis of multi-resistant hospital pathogens is now possible in 45 minutes instead of 72 hours. Further research is necessary before the procedure is ready for clinical application. |
Climate change modifies the composition of reefs Posted: 20 Sep 2018 07:11 AM PDT Corals devastated by climate change are being replaced naturally by other species such as gorgonians, which are less efficient in acting as a carbon sink. A study has analyzes for the first time why gorgonians are more resistant than corals to human impacts and global climate change. |
Test could detect patients at risk from lethal fungal spores Posted: 20 Sep 2018 04:59 AM PDT Scientists have discovered a genetic mutation in humans linked to a 17-fold increase in the amount of dangerous fungal spores in the lungs. The study could allow doctors to screen patients at risk from Aspergillus, and could easily be developed into a test. |
Flood frequency of Amazon River has increased fivefold Posted: 20 Sep 2018 04:58 AM PDT A recent study of more than 100 years of river level records from the Amazon shows a significant increase in frequency and severity of floods. |
If pigeons were brilliant, would they flock? Posted: 19 Sep 2018 10:30 AM PDT Researcher looked at how people behave in simple reasoning games and found that people are usually driven to 'flock,' or behave similarly to others in a given situation. |
Cane toad: Scientists crack genetic code Posted: 19 Sep 2018 08:15 AM PDT Scientists have unlocked the DNA of the cane toad, a poisonous amphibian that is a threat to many native Australian species. |
Cell mechanism regulating protein synthesis in stress conditions discovered Posted: 19 Sep 2018 08:15 AM PDT New research has uncovered the mechanism used by cells to optimize the production of proteins in stressful situations by altering tRNA abundance. |
'Hoppy' beer without exploding bottles and too much alcohol Posted: 19 Sep 2018 08:15 AM PDT 'Dry-hopping' beer enhances flavor but sometimes has undesirable side effects, such as an unexpectedly high alcohol content and high pressures. Now, new research explains the biochemical basis of these unintended consequences, which could help brewers create better 'hoppy' beverages. |
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