Tag Archives: negative impact

Useful pesticides

We all know about the harm that can be caused by pesticides. While being misused, pesticides can have a negative impact on the plants, animals and human health. Animals that eat the treated with pesticides plants, have a small amount of pesticides left in their organisms. Being a food to a human, such animals represent a certain risk to human health. Not only the meat can be intoxicated with pesticides but also eggs, milk and the further products of milk production.

While working with pesticides, people accumulate them in the organism, what, in turn, may lead to the chronic diseases. Human needs have increased immensely, and people nowadays can’t eliminate the use of pesticides. (more…)

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Paper Offers Framework for Amazon Oil and Gas Development

Oil and gas development continues to press into the most remote corners of the western Amazon, one of the most biologically and culturally diverse zones on Earth. Now a study proposes a new 10-point, best-practice framework that combines technical engineering criteria with consideration of ecological and social concerns to reduce the negative impacts of Amazonian hydrocarbon exploration and production.

The researchers say, for example, that by using extended reach drilling (ERD), a technique to reach a larger subsurface area from one surface drilling location, it is possible to greatly reduce the total number of needed drilling platforms and access roads for a given project. (more…)

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Survival Rates Lower for Heart Transplant Patients Whose Arteries Reclose after Stenting

Heart transplant patients are notorious for developing an aggressive form of coronary artery disease that can often result in heart failure, death or the need for repeat transplantation. The condition can also have a negative impact on future cardiac procedures, such as stenting.

Transplant patients are among those at highest risk of adverse outcomes when receiving a stent to address a blockage in an artery. Compared with the general public, these patients have a much higher rate of restenosis, a side effect of stenting in which the artery becomes re-blocked because of an exaggerated scarring process at the stenting site. (more…)

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Fossil Bird Study Describes Ripple Effect of Extinction in Animal Kingdom

GAINESVILLE, Fla. — A University of Florida study demonstrates extinction’s ripple effect through the animal kingdom, including how the demise of large mammals 20,000 years ago led to the disappearance of one species of cowbird.

The study shows the trickle-down effect the loss of large mammals has on other species, and researchers say it is a lesson from the past that should be remembered when making conservation, game and land-use decisions today. (more…)

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