PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Increased computer use by adolescents cause for concern

2011-04-26
(Press-News.org) Researchers at Queen's University have found a strong association between computer and Internet use in adolescents and engagement in multiple-risk behaviours (MRB), including illicit drug use, drunkenness and unprotected sex.

"This research is based on social cognitive theory, which suggests that seeing people engaged in a behaviour is a way of learning that behaviour," explains lead researcher Valerie Carson, a doctoral candidate in School of Kinesiology and Health Studies. "Since adolescents are exposed to considerable screen time—over 4.5 hours on average each day—they're constantly seeing images of behaviours they can then potentially adopt."

The researchers found that high computer use was associated with approximately 50 per cent increased engagement with a cluster of six MRB, including smoking, drunkenness, non-use of seatbelts, cannabis and illicit drug use, and unprotected sex. High television use was also associated with a modestly increased engagement in these MRB.

One explanation behind this finding is that a considerable amount of advertising that used to be shown on TV is now being shown on the Internet. In addition, computer usage by adolescents has increased considerably in recent years.

"TV and video games have more established protocols in terms of censorship, but Internet protocols aren't as established," says Ms Carson. "Parents can make use of programs that control access to the Internet, but adolescents in this age group are quite savvy about technology and the Internet. It's possible that these types of controls aren't effective in blocking all undesirable websites."

This research, recently published in the Journal of Preventative Medicine, suggests that future studies should examine the specific content adolescents are being exposed to in order to help strengthen current screen time guidelines for youth.

INFORMATION:

END



ELSE PRESS RELEASES FROM THIS DATE:

Battery-free Operational Constraints Drive Wireless Sensor Network Market in 2011

2011-04-26
The study, "WTRS Wireless Sensor Network Technology Trends, Q2 2011", analyzes competitive activities by prominent industry alliances and market penetration of associated wireless sensor network protocols. "Many of the technologies competing for market share in the Wireless Sensor Network (WSN) sector are still in a developing state," said Kirsten West, Principal Analyst with WTRS. "It appears that much of the growth likely in 2011 will be due to market demand for solutions to overall network connectivity and battery-free operational constraints." ...

Long-term follow-up shows multipolar electrocoagulation ablation effective for Barrett's esophagus

2011-04-26
OAK BROOK, Ill. – April 25, 2011 – A new study reports that multipolar electrocoagulation in combination with acid suppression is a safe and effective method to ablate nondysplastic Barrett's esophagus over the long term. No adenocarcinoma (cancer) or high-grade dysplasia of the esophagus developed in any of the study patients. This is the largest published series and longest follow-up of patients with nondysplastic Barrett's esophagus who underwent ablation therapy with multipolar electrocoagulation. The study appears in the April issue of GIE: Gastrointestinal Endoscopy, ...

Snooze control: Fatigue, air traffic and safety

2011-04-26
It is safe to say that we are all guilty of these at some point in our day – stifling a yawn in the middle of the work day, eyelids growing heavy and having the strong urge for caffeine when 3pm rolls around. While most of us have experienced fatigue and lethargy on the job, spare a thought for those who hold the fate of people's lives in their hands. In recent weeks, there have been reports of air traffic controllers falling asleep on the job, from Miami to Knoxville to Washington, DC. There is even speculation that staff shortage and a lack of attention may have contributed ...

Looking For Calm In The Chaos? - Millie Grenough to Keynote at 26th Annual NASW/CT Statewide Conference

Looking For Calm In The Chaos? - Millie Grenough to Keynote at 26th Annual NASW/CT Statewide Conference
2011-04-26
The 2011 Connecticut National Association of Social Workers Annual Conference celebrates the role of how "Social Workers Change Futures" and will be attended by social workers throughout the state. There are an estimated 8-10,000 social workers in Connecticut who are working to help people change and improve their lives as well as working on legislative initiatives and policy to help make such changes possible. Keeping with the theme of the annual conference that highlights social workers who "think outside the box" as they view problems from all ...

MIT researchers use virus to improve solar-cell efficiency

2011-04-26
CAMBRIDGE, Mass. -- Researchers at MIT have found a way to make significant improvements to the power-conversion efficiency of solar cells by enlisting the services of tiny viruses to perform detailed assembly work at the microscopic level. In a solar cell, sunlight hits a light-harvesting material, causing it to release electrons that can be harnessed to produce an electric current. The new MIT research, published online this week in the journal Nature Nanotechnology, is based on findings that carbon nanotubes — microscopic, hollow cylinders of pure carbon — can enhance ...

'Going off the grid' helps some bacteria hide from antibiotics

2011-04-26
COLLEGE STATION, Texas, April 25, 2011 - Call them the Jason Bournes of the bacteria world. Going "off the grid," like rogue secret agents, some bacteria avoid antibiotic treatments by essentially shutting down and hiding until it's safe to come out again, says Thomas Wood, professor in the Artie McFerrin Department of Chemical Engineering at Texas A&M University. This surreptitious and elaborate survival mechanism is explained in the online April edition of Nature Chemical Biology, which details the research of Wood and his post doctoral student Xiaoxue Wang along ...

Conducting ferroelectrics may be key to new electronic memory

2011-04-26
OAK RIDGE, Tenn., April 25, 2011 - Novel properties of ferroelectric materials discovered at the Department of Energy's Oak Ridge National Laboratory are moving scientists one step closer to realizing a new paradigm of electronic memory storage. A new study led by ORNL's Peter Maksymovych and published in the American Chemical Society's Nano Letters revealed that contrary to previous assumptions, domain walls in ferroelectric materials act as dynamic conductors instead of static ones. Domain walls, the separation zones only a few atoms wide between opposing states ...

Catastrophic amphibian declines have multiple causes, no simple solution

2011-04-26
CORVALLIS, Ore. – Amphibian declines around the world have forced many species to the brink of extinction, are much more complex than realized and have multiple causes that are still not fully understood, researchers conclude in a new report. The search for a single causative factor is often missing the larger picture, they said, and approaches to address the crisis may fail if they don't consider the totality of causes – or could even make things worse. No one issue can explain all of the population declines that are occurring at an unprecedented rate, and much faster ...

Study shows how mosquitoes handle the heat of a hot blood meal

2011-04-26
COLUMBUS, Ohio – Mosquitoes make proteins to help them handle the stressful spike in body temperature that's prompted by their hot blood meals, a new study has found. The mosquito's eating pattern is inherently risky: Taking a blood meal involves finding warm-blooded hosts, avoiding detection, penetrating tough skin and evading any host immune response, not to mention the slap of a human hand. Until now, the stress of the hot blood meal itself has been overlooked, researchers say. Scientists have determined in female mosquitoes that the insects protect themselves ...

ISU research leads to understanding of how crops deal with stress -- yield's biggest enemy

2011-04-26
AMES, Iowa - Like people, plants experience stress. And also, like people, the response to that stress can determine success. People can exercise, or rest, or talk about the problem. For plants, ways to deal with stress are internal. And ISU researchers are trying to understand how they do it. Stephen Howell is a professor of genetics, development and cell biology and former director of the Plant Sciences Institute at ISU. His research is featured in the current issue of the journal Proceedings of the National Academy of Sciences. "We've discovered a new arm of ...

LAST 30 PRESS RELEASES:

Scientists unlock secrets behind flowering of the king of fruits

Texas A&M researchers illuminate the mysteries of icy ocean worlds

Prosthetic material could help reduce infections from intravenous catheters

Can the heart heal itself? New study says it can

Microscopic discovery in cancer cells could have a big impact

Rice researchers take ‘significant leap forward’ with quantum simulation of molecular electron transfer

Breakthrough new material brings affordable, sustainable future within grasp

How everyday activities inside your home can generate energy

Inequality weakens local governance and public satisfaction, study finds

Uncovering key molecular factors behind malaria’s deadliest strain

UC Davis researchers help decode the cause of aggressive breast cancer in women of color

Researchers discovered replication hubs for human norovirus

SNU researchers develop the world’s most sensitive flexible strain sensor

Tiny, wireless antennas use light to monitor cellular communication

Neutrality has played a pivotal, but under-examined, role in international relations, new research shows

Study reveals right whales live 130 years — or more

Researchers reveal how human eyelashes promote water drainage

Pollinators most vulnerable to rising global temperatures are flies, study shows

DFG to fund eight new research units

Modern AI systems have achieved Turing's vision, but not exactly how he hoped

Quantum walk computing unlocks new potential in quantum science and technology

Construction materials and household items are a part of a long-term carbon sink called the “technosphere”

First demonstration of quantum teleportation over busy Internet cables

Disparities and gaps in breast cancer screening for women ages 40 to 49

US tobacco 21 policies and potential mortality reductions by state

AI-driven approach reveals hidden hazards of chemical mixtures in rivers

Older age linked to increased complications after breast reconstruction

ESA and NASA satellites deliver first joint picture of Greenland Ice Sheet melting

Early detection model for pancreatic necrosis improves patient outcomes

Poor vascular health accelerates brain ageing

[Press-News.org] Increased computer use by adolescents cause for concern