منابع مشابه
Butterflies take a well-studied tumble
Massive amounts of observation data recorded by amateurs are available for butterfl ies, allowing scientists to study their population dynamics and response to environmental threats. They report serious declines in many rarer species leading to an overall loss in biodiversity. As these declines refl ect the impacts of land use change, climate change and pesticide use, they also provide an alarm...
متن کاملBurns from orthodontic pliers.
A case of burn injury from orthodontic pliers resulting in a partial-thickness burn is presented. A brief description of the injury, a review of the pertinent literature, and general guidelines for out-patient management of such burns are also presented.
متن کاملEstimating alcohol content of drinks: common errors in applying the unit system.
One third of accidents occur in the home, and the age group most at risk is the under 5s. Home appliances play a part in many of these accidents. In 1986, 27 accidents in which a tumble drier was involved were reported to the home accident surveillance system. Most of these injuries resulted from falls off or against the appliance, and only one burn, to a person leaning against the door, was re...
متن کاملFreeze-drying fungi using a shelf freeze-drier.
Lyophilization, the removal of water by freezing and then volatilization at low pressure and temperature, has been employed as a standard long-term preservation method for many filamentous fungi. The method outlined involves the use of standard shelf freeze-drying and skimmed milk as a suspending solution/lyoprotectant. This approach has been employed to freeze-dry the majority of the 50,000 fu...
متن کاملMacular Burns from Nonmedical Lasers
Laser devices are widely used for medical, military, industrial and entertainment purposes. This extensive and unregulated use of lasers can cause a variety of maculopathies that can result in permanent vision loss. Uncontrolled and inappropriate use of laser instruments should be prevented with strict rules. We strongly emphasize the importance of changing the general misperception that lasers...
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ژورنال
عنوان ژورنال: BMJ
سال: 1989
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.298.6682.1250-c