News tagged with cross section
Physicists find that an ultrahigh-energy proton looks like a black disk
(PhysOrg.com) -- What does a proton look like? The common answer to this question is that protons are much too small to scatter light, and since light is necessary for us to see things, protons do not “look” ...
Dec 08, 2011 |
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Scientists See Smallest-Ever Square Nanotube
(PhysOrg.com) -- Scientists have observed the smallest reported nanotube that has a square cross-section. The structure formed spontaneously and unexpectedly when silver nanowires were stretched and is a reminder ...
Feb 20, 2009 |
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Search results for cross section
HIV-infected youth, psychiatric symptoms and functional outcomes
A study of children and adolescents who had been infected perinatally (around the time of their birth) with human immunodeficiency virus (HIV) suggests little evidence of an association between specific antiretroviral therapy ...
Medicine & Health / HIV & AIDS
Feb 06, 2012 |
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Global extinction: Gradual doom is just as bad as abrupt
A painstakingly detailed investigation shows that mass extinctions need not be sudden events. The deadliest mass extinction of all took a long time to kill 90 percent of Earth's marine life, and it killed ...
Space & Earth / Earth Sciences
Feb 03, 2012 |
4.2 / 5 (20) |
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How health systems factors affect access to psychotropic medicines
In a cross-sectional analysis of WHO-AIMS data published in this week's PLoS Medicine, Ryan McBain of Harvard School of Public Health, Boston, USA and colleagues investigated the associations between health system compon ...
Medicine & Health / Psychology & Psychiatry
Jan 31, 2012 |
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Prevalence of oral HPV infection higher among men than women
The overall prevalence of oral human papillomavirus (HPV) infection is approximately 7 percent among men and women ages 14 to 69 years in the United States, while the prevalence among men is higher than among women, according ...
Jan 26, 2012 |
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Physician's weight may influence obesity diagnosis and care
A patient's body mass index (BMI) may not be the only factor at play when a physician diagnoses a patient as obese. According to a new study led by researchers at the Johns Hopkins Bloomberg School of Public Health, the diagnosis ...
Jan 26, 2012 |
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Method that can validate nuclear collision models benefits IAEA
A novel technique for materials research is unexpectedly also contributing to the nuclear safety efforts of the International Atomic Energy Agency. Pacific Northwest National Laboratory scientist Dr. Weilin ...
Jan 25, 2012 |
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How wings really work
(PhysOrg.com) -- A 1-minute video released by the University of Cambridge sets the record straight on a much misunderstood concept – how wings lift.
Jan 25, 2012 |
4.3 / 5 (23) |
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Markerless motion capture offers a new angle on tennis injuries
A new approach to motion capture technology is offering fresh insights into tennis injuries – and orthopedic injuries in general.
Jan 17, 2012 |
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Hospitalized patients are very accepting of nurse-delivered brief alcohol interventions
The U.S. Joint Commission recently approved new hospital accreditation measures related to alcohol screening, brief intervention, and referral to treatment (SBIRT) for all hospitalized patients. Yet little is known about ...
Jan 16, 2012 |
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Giant optical gain in a rare-earth-ion-doped microstructure
Prof. Markus Pollnau and co-workers at the MESA+ Institute for Nanotechnology at the University of Twente (The Netherlands) have developed a rare-earth-ion-doped optical amplifier with performance comparable to semiconductor ...
Jan 12, 2012 |
5 / 5 (1) |
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List of search results for cross section
