Latest Science News -- ScienceDaily
The secret to honing kids' language and literacy
Thu, 24 May 2018 14:17:44 EDT
Researchers found that a child's ability to self-regulate is a critical element in childhood language and literacy development, and that the earlier they can hone these skills, the faster language and literacy skills develop leading to better skills in the long run.
When the dinosaurs died, so did forests -- and tree-dwelling birds
Thu, 24 May 2018 14:17:36 EDT
Sixty-six million years ago, the world burned. An asteroid crashed to Earth with a force one million times larger than the largest atomic bomb, causing the extinction of the dinosaurs. But dinosaurs weren't the only ones that got hit hard -- in a new study, scientists learned that the planet's forests were decimated, leading to the extinction of tree-dwelling birds.
Reconstructing Zika's spread
Thu, 24 May 2018 14:17:30 EDT
The urgent threat from Zika virus, which dominated headlines in early 2016, has passed. But research into how Zika and other mosquito-borne infections spread and cause epidemics is still very active. Researchers now report new details of how Zika emerged from Brazil and spread throughout Mexico and Central America, with evidence that some locations had more than one outbreak.
Imminent extinction of northern white rhinoceros motivates genetic recovery efforts
Thu, 24 May 2018 14:17:25 EDT
Earlier this year, the last remaining male northern white rhinoceros (NWR) died in captivity, nearly cementing the fate of this subspecies for extinction. In the wild, continuing threats of poaching, habitat destruction, and small population size have contributed to the rhinos' status as critically endangered. Yet, novel conservation efforts that make use of cryopreserved genetic material could save the NWR, and other threatened species, from extinction.
Tick bite protection: New CDC study adds to the promise of permethrin-treated clothing
Thu, 24 May 2018 14:17:20 EDT
The case for permethrin-treated clothing to prevent tick bites keeps getting stronger. In new experiments, clothing treated with an insecticide known as permethrin had strong toxic effects on three primary species of ticks known to spread disease-causing pathogens in the United States. Exposure to permethrin interfered with the ticks' ability to move properly, making them sluggish and likely interfering with their ability to bite.
Molecular network boosts drug resistance and virulence in hospital-acquired bacterium
Thu, 24 May 2018 14:17:17 EDT
In response to antibiotics, a gene regulation network found in the bacterium Acinetobacter baumannii acts to boost both virulence and antibiotic resistance.
Gut microbiome can control antitumor immune function in liver
Thu, 24 May 2018 14:17:15 EDT
Scientists have found a connection between bacteria in the gut and antitumor immune responses in the liver. Bacteria found in the gut of mice affect the liver's antitumor immune function. The findings have implications for understanding the mechanisms that lead to liver cancer and for therapeutic approaches to treat them.
Ingestible 'bacteria on a chip' could help diagnose disease
Thu, 24 May 2018 14:17:12 EDT
Researchers have built an ingestible sensor equipped with genetically engineered bacteria that can diagnose bleeding in the stomach or other gastrointestinal problems.
Scientists can predict which storks will migrate to Africa in autumn and which will remain in Europe
Thu, 24 May 2018 14:16:55 EDT
Scientists can predict which storks will migrate to Africa in autumn and which will remain in Europe.
New theory finds 'traffic jams' in jet stream cause abnormal weather patterns
Thu, 24 May 2018 14:16:47 EDT
A study offers an explanation for a mysterious and sometimes deadly weather pattern in which the jet stream, the global air currents that circle the Earth, stalls out over a region. Much like highways, the jet stream has a capacity, researchers said, and when it's exceeded, blockages form that are remarkably similar to traffic jams -- and climate forecasters can use the same math to model them both.
Mongooses inherit behavior from role models rather than parents
Thu, 24 May 2018 14:16:44 EDT
Young mongooses learn lifelong habits from role models rather than inheriting them from genetic parents, new research shows.
Opportunity to restore abundance to Hawaiian reef fisheries
Thu, 24 May 2018 14:16:39 EDT
A new study has identified areas in the Hawaiian Islands that would provide the greatest increase in coastal fishery stocks, if effectively managed.
Using Facebook to help young adults quit smoking
Thu, 24 May 2018 14:16:28 EDT
A national clinical trial testing a smoking cessation intervention for young adults that was conducted entirely on Facebook has found that smokers are 2.5 times more likely to quit after three months with the Facebook-based treatment than if they were referred to an online quit-smoking program.
Cancer cells co-opt pain-sensing 'wasabi receptor' to survive oxidative stress
Thu, 24 May 2018 14:16:23 EDT
Some cancers express unusually high levels of a neural calcium channel known as the 'wasabi receptor,' which plays a role in detecting pain, cold and other sensations. New research finds cancer cells co-opt this neural channel to increase their tolerance against toxic oxidative stress. Blocking the activity of this channel in mice curbs tumor growth and makes cancer cells more sensitive to chemotherapy.
Solar energy: Mixed anion compounds with 'fluorine' works as new photocatalytic material
Thu, 24 May 2018 14:16:11 EDT
Scientists have shown that an oxyfluoride is capable of visible light-driven photocatalysis. The finding opens new doors for designing materials for artificial photosynthesis and solar energy research.
Past use of disinfectants and PPE for Ebola could inform future outbreaks
Thu, 24 May 2018 14:16:06 EDT
Data from the 2014 Ebola virus outbreak at two Sierra Leone facilities reveal daily usage rates for disinfectant and personal protective equipment, informing future outbreaks, according to a new study.
Plant symbioses -- fragile partnerships
Thu, 24 May 2018 14:15:56 EDT
Symbioses between plants and nitrogen-fixing bacteria can be ecologically advantageous for both parties. Surprisingly, many partnerships, including some involving the ancestors of several modern fruits such as strawberries, blackberries and apples, have been dissolved during evolution.
Bold lizards of all sizes have higher mating success
Thu, 24 May 2018 14:15:50 EDT
Boldness correlates with the mating success, but not body size or sex, of yellow-spotted monitor lizards roaming the remote Oombulgurri floodplains of tropical Western Australia, ecologists report. Bold individuals expose themselves to much higher risk of being eaten by predators during the dangerous wet season. The researchers demonstrated quantifiable behavioral syndromes in the large lizards, with an intriguing relationship to the lizards' seasonal hunting strategies.
Hey Alexa: Amazon's virtual assistant becomes a personal assistant to software developers
Thu, 24 May 2018 14:15:48 EDT
Computer scientists have turned Amazon Alexa into a tool for software engineers, tasking the virtual assistant to take care of mundane programming tasks, helping increase productivity and speed up workflow.
400-million-year-old evolutionary arms race helps researchers understand HIV
Thu, 24 May 2018 14:15:45 EDT
Researchers were interested in the origin of a gene that encodes for protein, HERC5, shown to potently inhibit HIV. Scientists show that the gene first emerged in fish over 400 million years ago and has been involved in an evolutionary arms race with viruses ever since.