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Search results for “Northern Lights”

1,000+ results for "Northern Lights"

Light pollution contributing to fledgling 'fallout'

A 15-year study found thousands of birds are attracted to artificial lights during their first flights, leading to high mortality rates. Turning street lights off decreased the number of grounded fledglings, suggesting a link between light pollution and bird deaths.

SourcePLOS·JournalPLOS ONE·DateOct 15, 2014

Some sections of the San Andreas Fault system in San Francisco Bay Area are locked, overdue

Four urban sections of the San Andreas Fault system have stored enough energy to produce major earthquakes, according to a new study. Three fault sections – Hayward, Rodgers Creek and Green Valley – are nearing or past their average recurrence interval, indicating they are overdue for a significant quake.

SourceSeismological Society of America·JournalBulletin of the Seismological Society of America·DateOct 13, 2014

Original northern border of Illinois was south of Chicago and Lake Michigan

The original northern boundary of Illinois was south of Chicago and Lake Michigan due to a proposed straight line from the southernmost tip of Lake Michigan to the Rock and Mississippi River confluence. This would have resulted in a smaller population and footprint for Illinois if it had been approved.

Night-time brilliance lights up political patronage

A new study by Monash University researchers links night-time light intensity to regional favouritism and GDP growth, finding that countries where political leaders were born tend to have higher night-time light levels and regional GDP. The study also highlights the impact of authoritarian leadership on foreign aid distribution.

SourceMonash University·JournalThe Quarterly Journal of Economics·DateJul 9, 2014

Adolescents from southern Europe are less fit and more obese than central-northern European peers

A study by the University of Granada found that teenagers in Spain, Italy, and Greece have lower cardiorespiratory capacity, strength, and speed-agility than their northern European peers. The researchers also discovered higher levels of total and abdominal fat among southern adolescents, which may be linked to reduced physical activity.

SourceUniversity of Granada·JournalPEDIATRICS·DateJul 9, 2014

Wetlands likely to blame for greenhouse gas increases: Study

A new study by University of Guelph researcher Prof. Merritt Turetsky and her team found that wetlands are a significant source of methane emissions, which could contribute to global warming. The study analyzed almost 20,000 field data measurements from across arctic, temperate, and tropical regions and suggests that northern wetlands ...

SourceUniversity of Guelph·JournalGlobal Change Biology·DateApr 28, 2014

Bright, laser-based lighting devices

Researchers at University of California, Santa Barbara, have devised a new method for creating high-power white light using a laser diode in combination with inorganic phosphors. The resulting lighting options are high in efficiency and have been shown to achieve a luminous flux comparable to current high-brightness white LEDs.

SourceAmerican Institute of Physics·JournalAIP Advances·DateSep 27, 2013

Nature: How forests cope with more carbon dioxide

A study by researchers found that forests in the northern hemisphere increase their water use efficiency as atmospheric carbon dioxide concentrations rise, exceeding theoretical expectations. This adaptation helps plants conserve water despite increased photosynthesis, potentially shifting the global water and carbon cycle.

SourceHelmholtz Association·JournalNature·DateJul 11, 2013