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Tag: development

Too much screen time, too little sleep linked to child development problems: Study

Too much screen time, too little sleep linked to child development problems: Study

Health
The average American child spends 3.6 hours staring at a computer, television, tablet, or smartphone daily -- an amount of screen time associated with inferior cognitive development and academic performance, according to a new study of over 4,500 children between the ages of eight and 11 published yesterday in The Lancet Child & Adolescent Health. The study was conducted by Canadian researchers, but examined children in the U.S. using the Canadian 24-Hour Movement Guidelines for Children and Youth. Those guidelines recommend that children get nine to 11 hours of uninterrupted sleep, less than two hours of screen time and at least one hour of physical activity every day. The children who scored best on tests for assessing language abilities, memory, executive function, attention, and proc...
Herpesvirus may contribute to Alzheimer's development, researchers say

Herpesvirus may contribute to Alzheimer's development, researchers say

Health
June 21 (UPI) -- Certain species of herpesviruses may play a role in Alzheimer's disease according to a study of brain samples from people with and without the disease. Researchers made the discovery after examining data from brain banks and cohort studies that are part of the Accelerating Medicines Partnership -- Alzheimer's Disease consortium. But the researchers, who published their findings Thursday in the journal Neuron, emphasize that their research doesn't prove that the viruses cause the onset or progression of Alzheimer's. Currently, no effective prevention or treatment exists for this progressive deterioration of brain tissue, memory and identity, but researchers are hopeful that new, better treatments can emerge as a result of their work. "The hypothesis that viruses play a pa...
Lockheed joins Gray Wolf missile development program

Lockheed joins Gray Wolf missile development program

Business
Dec. 27 (UPI) -- The Air Force has awarded Lockheed Martin the second deal, after Northrop Grumman, for development and demonstration of a new low-cost cruise missile called Gray Wolf.The terms of the $ 110 million deal were made public by Lockheed Martin on Wednesday in announcing the five-year contract for phase 1 of Gray Wolf development.Last week, the U.S. Air Force Research Laboratory awarded the same deal to Northrop Grumman as part of the program to develop the weapon.The Gray Wolf program aims to develop a low-cost, subsonic cruise missile that can be integrated into multiple air platforms from U.S. Air Force fighter jets to bombers. Lockheed officials say the initial demonstrations will be from an F-16.Overall, the program aims to defeat an enemy's integrated air defense system by...
Research refutes theory linking family income, genetics, brain development

Research refutes theory linking family income, genetics, brain development

Health
Nov. 17 (UPI) -- Researchers have debunked a popular theory linking socioeconomic status, genetics and cognitive development.Several studies have suggested genetics have a stronger influence on brain development among children from more affluent households. Some scientists have suggested the link between wealth and genetic influence is especially strong in the United States.But new analysis of birth and school records suggests the influence of nature and nurture -- genes and environment -- are the same for everyone, regardless of socioeconomic status.Researchers published their findings this week in the journal PNAS."While children from higher socio-economic status backgrounds have much better cognitive outcomes on average than those from lower socio-economic status households, genetics ap...
Lockheed Martin expects F-35 software development to finish by end of 2017

Lockheed Martin expects F-35 software development to finish by end of 2017

Business
July 24 (UPI) -- The F-35 Lightning II is nearing completion of its Systems Development and Demonstration phase as the airframe passes 100,000 hours in flight time, Lockheed Martin announced on Monday.The F-35 Integrated Test Force teams are expected to complete the SDD portion of the jet program by the end of the year, according to Lockheed's F-35 program general manager Jeff Babione."This 100K milestone marks a significant level of maturity for the program and the F-35 weapons system," Babione said in a press release."We are well positioned to complete air vehicle full 3F and mission systems software development by the end of 2017."Lockheed said remaining testing of the systems includes validating 3F software, F-35B ski jump testing and austere site operations, high-speed load testing an...