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168,508 articles from ScienceDaily

Elevated Blood Pressure In Youth Linked To Rise In Childhood Obesity

After decades of decline, blood pressure levels in children and adolescents are increasing. Researchers said that each one centimeter increase in waist circumference raised the likelihood of high blood pressure by 10 percent and the likelihood of pre-high blood pressure by five percent. High blood pressure is a major public health problem in adults and a common risk factor for heart attack and...

Gene Expression May Be Altered In Drug Addiction: Mechanism Illuminated

Scientists recently completed a study investigating one of the changes in gene expression that occurs when individuals take addictive drugs. The studies focus on how the primary RNA transcript is processed by splicing to produce a mature transcript. The fidelity of splicing must be maintained since errors may lead to the development of disease.

Implantable Device Designed To Detect, Stop Seizures Under Study

A small device implanted in the skull that detects oncoming seizures, then delivers a brief electrical stimulus to the brain to stop them is under study. Participants have a device implanted in the skull, with up to two wires containing electrodes placed near the seizure focus. A modified laptop computer looks at electrical activity picked up by the neurostimulator, then is used to program the...

Reading Process Is Surprisingly Different That Previously Thought, Technology Shows

Being able to read competently is one of the most important skills we need to function in today's fast-paced society. Analysing the way we read can offer valuable insights into how we process visual information. Scientists have been interested in the movements of our eyes while reading for forty years. However, until now most assumed that when we read both eyes look at the same letter of a word...

Mathematics Of Ice To Aid Global Warming Forecasts

Mathematicians have arrived at a new understanding of how salt-saturated ocean water flows through sea ice -- a discovery that promises to improve forecasts of how global warming will affect polar icepacks. Researchers show that brine moving up or down through floating sea ice follows "universal transport properties."

Physics Reveals The Secrets Of Saint Francis

The tunic believed to have been worn by Saint Francis of Assisi preserved in the Church of Saint Francis in Cortona (Province of Arezzo) dates back to the period in which the saint lived, whereas the tunic preserved in the Church of Santa Croce in Florence was made after his death. Carbon 14 measurements, which allow a relic to be dated, show that the tunic in Santa Croce dates back to some time...

More Nutritional Cassava (Yucca) For Developing World

An intensive international effort to improve the nutritional value of cassava -- a staple food for millions of poverty stricken people in sub-Sahara Africa and other areas -- has led to development of a New form of cassava that may be easier to digest than other varieties. Also known as yucca or manioc, the roots of the plant are similar to potatoes and are often eaten boiled or deep fried.

Practice-based Intervention Has Sustained Benefits For Children And Families

The Healthy Steps for Young Children Program, which added behavior and development services to pediatric practices, continued to benefit families more than two years after the intervention ended. The sustained benefits from participation included greater satisfaction among parents with their child's health care, greater odds that parent's will report a child's serious behavioral issue to the...

'Fruity Vegetables' And Fish Reduce Asthma And Allergies

Giving children a diet rich in fish and "fruity vegetables" can reduce asthma and allergies, according to a seven-year study of 460 children. The findings also reinforce the researchers' earlier findings that a fish-rich diet in pregnancy can help to protect children from asthma and allergies.

A Child's IQ Could Be Affected By Maternal Epilepsy

A history of maternal epilepsy and its associated treatment may be linked to impaired intelligence later in life, says a new study.Researchers investigated the IQ levels of sons born to mothers with and without epilepsy, and found a correlation between intelligence and the illness.

Alex, The Renowned African Grey Parrot, Dies At 31

Alex, the world renowned African Grey parrot made famous by the ground-breaking cognition and communication research conducted by Brandeis scientist Irene Pepperberg, Ph.D., died at the age of 31 on September 6, 2007. Alex learned elements of English speech to identify 50 different objects, 7 colors, 5 shapes, quantities up to and including 6 and a zero-like concept. He used phrases such as "I...

Brain Network Related To Intelligence Identified

Researchers have uncovered evidence of a distinct neurobiology of human intelligence. This Parieto-Frontal Integration Theory identifies a network related to intelligence, one primarily involving areas in the frontal and the parietal lobes. The data suggest that some of the brain areas related to intelligence are the same areas related to attention, memory and language. This possible integration...

Cluster And Double Star Uncover More On Bright Aurorae

Cluster data has helped provide scientists with a new view of magnetospheric processes, challenging existing theories about magnetic substorms that cause aurorae and perturbations in GPS signals. The onset of magnetic substorms that originate in Earth’s magnetosphere has been explained by two competing models: current disruption and near-earth reconnection. Current beliefs have been...

Diesel Exhaust Kills Throat Cells, Study Shows

Diesel exhaust is far more damaging to our health than exhaust from biodiesel, the plant-based fuel, according to a new study. As it is not possible to study in real time what happens in the real human airway, the researchers conducted their research on human airway cells grown in a culture. The cells were exposed to the particulate matter emitted in diesel and biodiesel exhaust fumes.

Drug Spending Caps Cause Some Seniors To Quit Taking Key Medicines

Many seniors quit taking drugs for chronic illnesses such as diabetes and high blood pressure when they exceed their drug plan's yearly spending limits, according to a new study. The report, which examines the behavior of seniors enrolled in a private health plan, provides insight into how seniors may act under provisions of Medicare's new drug benefit plan that will leave about one-third of...

Ethical Issues Of Scientific Research In Developing World Examined

The first comprehensive examination of the ethical, social and cultural (ESC) challenges faced by major science programs in developing countries has identified a complex assortment of issues with the potential to slow critical global health research if left unaddressed. They range from problems such as government corruption to complex questions surrounding community and public engagement, cultural...

Gay Or Straight? Body Type And Motion Reveals Sexual Orientation, Study Suggests

An individual's body motion and body type can offer subtle cues about their sexual orientation, but casual observers seem better able to read those cues in gay men than in lesbians, according to a new study. Based on measurements, the researchers determined that the gay subjects tended to have more gender-incongruent body types than their straight counterparts (hourglass figures for men, tubular...

Glaucoma Surgery In The Blink Of An Eye

Scientists are testing a new laser surgery device specifically designed to make glaucoma procedures safer, simpler and faster. The revolutionary non-penetrating technique will be easily mastered by most eye surgeons, thereby making it more accessible and less risky for glaucoma sufferers. Glaucoma is the second leading cause of blindness in the West.

Health Food Supplement May Curb Addiction Of Pathological Gamblers

Researchers have discovered that a common amino acid, available as a health food supplement, may help curb pathological gamblers' addiction. Results are encouraging for other addictions, too. In a recent eight-week trial, 27 people were given increasing doses of a specific amino acid which has an impact on the chemical glutamate -- often associated with reward in the brain. At the end of the...