Researchers found that babies exposed to signed language produce distinct hand movements with low-frequency rhythmic activity, indicating an innate sensitivity to linguistic patterns. This discovery suggests that parents' sing-song way of speaking and playful rhyming games can aid the language learning process.
Two Dartmouth researchers, Erland Schulson and Carl Renshaw, propose a theory that brittle materials like rocks and ice crack in the same manner. They identify a specific type of cracking mechanism, 'comb' cracks, which leads to collapse in both ice and rock.
A team of researchers, led by George Cybenko and Sue McGrath, are developing a mobile agent-based system to monitor bone loss in astronauts during extended space missions. The system will analyze data on urinary calcium, diet, exercise, atmospheric conditions, and medical history to provide timely feedback and prevent bone loss.
The Dartmouth Flood Observatory uses satellite images from NASA's Terra spacecraft to pinpoint flooded areas and provide precise mapping accuracy, aiding United Nations World Food Program staff. The new composite surface images have been used to identify the worst-hit areas of the current flooding in Southeast Asia.
A new study by researchers at Dartmouth College found that fertilized lakes in Ontario, Canada, exhibit unpredictable algal composition and abundance fluctuations from year to year. This unpredictability makes it challenging for lake managers to make accurate predictions for planning management and research efforts.
Researchers found that survival and reproduction rates for black-throated blue warblers were lower during El Niño years and higher during La Niña years. Climate changes associated with El Niño diminished food supply, causing low reproductive success in breeding grounds.
Researchers isolated a gene that enables plants to absorb iron from the soil. The finding has significant implications for addressing global malnutrition and food security. By understanding how plants process iron, scientists can develop more efficient ways to fortify crops with this essential nutrient.
Indigenous leaders, scientists, and policy makers from 10 countries will gather in Finland to discuss the impact of human activity on Arctic caribou and reindeer communities. The goal is to develop a comprehensive plan for scientific research that promotes the well-being of Arctic residents and reduces conflicts over resource use.
Researchers have found that migratory birds' winter habitats influence their breeding success by affecting arrival time and physical condition. American redstarts in wetter environments maintained better body mass and robust condition, while those in drier environments lost mass and showed signs of deteriorating condition.
A newly unearthed version of the Laozi (Tao-te ching), dating back at least 2,350 years, is being studied by 30 international scholars. The Guodian Laozi sheds new light on the debate about its authorship and the relationship between Daoism and Confucianism.
A Dartmouth physicist has discovered that applying a small electric voltage across an ice-metal interface can break the bond between ice and metal surfaces, potentially preventing or reducing icing on airplane wings. The effect of the voltage can be reversed to increase ice adhesion, which could improve traction on icy roads.
Researchers use strontium isotopes to identify salmon stream origins, allowing for unprecedented accuracy in tracking adult salmon. The technique has promise for restoring salmon populations and studying their migrations.