News tagged with hurricane
Stress does bad things to the heart. New studies have found higher rates of cardiac problems in veterans with post-traumatic stress disorder, New Orleans residents six years after Hurricane Katrina and Greeks struggling through ...
Cardiology Mar 10, 2013 | 5 / 5 (1) | 0
(HealthDay)—Stressful events, including hurricanes, earthquakes, and financial crises, correlate with increased incidence of acute myocardial infarction (AMI), according to three studies to be presented ...
Cardiology Mar 08, 2013 | not rated yet | 0
The upheaval caused by Hurricane Katrina seems to have disrupted the usual timing of heart attacks, shifting peak frequency from weekday mornings to weekend nights, in a change in pattern that persisted a full five years ...
Cardiology Mar 07, 2013 | not rated yet | 0
Recent natural disasters illustrate vulnerability of older people: majority of deaths from the Great East Japan Earthquake (2011) and Hurricane Katrina (2005) occurred among older people.
Health Jan 31, 2013 | not rated yet | 0
(AP)—The world's largest agency that deals with global migration says cholera is again on the rise in Haiti.
Diseases, Conditions, Syndromes Nov 16, 2012 | not rated yet | 0
After a natural disaster occurs, we often find ourselves glued to the TV, seeking out details about the extent of the damage and efforts at recovery. While research has shown that exposure to this kind of coverage is associated ...
Psychology & Psychiatry Nov 05, 2012 | not rated yet | 0 |
Older adults left in the wake of Hurricane Sandy will likely suffer disproportionately in the days ahead, based on data from other recent natural disasters.
Health Oct 31, 2012 | not rated yet | 0
Expectant mothers who dealt with the strain of a hurricane or major tropical storm passing nearby during their pregnancy had children who were at elevated risk for abnormal health conditions at birth, according to a study ...
Health Jun 28, 2012 | not rated yet | 0
(AP) -- Tornado, hurricane or flood, nursing homes are woefully unprepared to protect frail residents in a natural disaster, government investigators say.
Health Apr 16, 2012 | not rated yet | 0
(AP) -- The remnants of Hurricane Irene did what policymakers hadn't been able to accomplish for more than a decade - close the state's antiquated psychiatric hospital.
Health Jan 31, 2012 | not rated yet | 0
Recent events such as the ten-year commemoration of September 11th just weeks ago, Hurricane Irene striking the east coast this past summer, three months of oil spills off of the Gulf Coast a year ago, and the tragic earthquakes ...
Psychology & Psychiatry Oct 19, 2011 | not rated yet | 0
When earthquake, tsunami, tornado or flood strike, among the most vulnerable group are the elderly. Writing in the International Journal of Emergency Management, researchers in New Zealand suggest that emergency response plans ...
Health Jun 03, 2011 | not rated yet | 0
A tropical cyclone is a storm system characterized by a large low-pressure center and numerous thunderstorms that produce strong winds and heavy rain. Tropical cyclones feed on heat released when moist air rises, resulting in condensation of water vapor contained in the moist air. They are fueled by a different heat mechanism than other cyclonic windstorms such as nor'easters, European windstorms, and polar lows, leading to their classification as "warm core" storm systems. Tropical cyclones originate in the doldrums near the equator, about 10° away from it.
The term "tropical" refers to both the geographic origin of these systems, which form almost exclusively in tropical regions of the globe, and their formation in maritime tropical air masses. The term "cyclone" refers to such storms' cyclonic nature, with counterclockwise rotation in the Northern Hemisphere and clockwise rotation in the Southern Hemisphere. Depending on its location and strength, a tropical cyclone is referred to by names such as hurricane, typhoon, tropical storm, cyclonic storm, tropical depression, and simply cyclone.
While tropical cyclones can produce extremely powerful winds and torrential rain, they are also able to produce high waves and damaging storm surge as well as spawning tornadoes. They develop over large bodies of warm water, and lose their strength if they move over land. This is why coastal regions can receive significant damage from a tropical cyclone, while inland regions are relatively safe from receiving strong winds. Heavy rains, however, can produce significant flooding inland, and storm surges can produce extensive coastal flooding up to 40 kilometres (25 mi) from the coastline. Although their effects on human populations can be devastating, tropical cyclones can also relieve drought conditions. They also carry heat and energy away from the tropics and transport it toward temperate latitudes, which makes them an important part of the global atmospheric circulation mechanism. As a result, tropical cyclones help to maintain equilibrium in the Earth's troposphere, and to maintain a relatively stable and warm temperature worldwide.
Many tropical cyclones develop when the atmospheric conditions around a weak disturbance in the atmosphere are favorable. The background environment is modulated by climatological cycles and patterns such as the Madden-Julian oscillation, El Niño-Southern Oscillation, and the Atlantic Multi-Decadal Mode. Others form when other types of cyclones acquire tropical characteristics. Tropical systems are then moved by steering winds in the troposphere; if the conditions remain favorable, the tropical disturbance intensifies, and can even develop an eye. On the other end of the spectrum, if the conditions around the system deteriorate or the tropical cyclone makes landfall, the system weakens and eventually dissipates. It is not possible to artificially induce the dissipation of these systems with current technology.
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