Ropivacaine - a new local anesthetic

Article Abstract:

Ropivacaine is a local anesthetic that may have fewer side effects than others such as bupivacaine. It is marketed under the trade name Naropin and has been approved for surgery, obstetrical procedures such as vaginal and cesarean childbirth and postoperative pain. It is not as strong as bupivacaine, but is less toxic to the heart. However, other side effects are similar to bupivacaine, such as low blood pressure, nausea and vomiting. Naropin costs twice as much as the same dose of bupivacaine and may have to be used in higher doses because of its weaker action.

Evaluation, Product/Service Evaluation, Local anesthesia, Anesthetics, Naropin (Medication)

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Myopia and ambient lighting at night

Article Abstract:

There is a strong link between the prevalence of myopia and high myopia in childhood and ambient light exposure during sleep at night in the first two years after birth. The connection between refraction and night-time light is dose dependent. This research does not indicate whether early visual experience affects ocular anatomy by age two or only later. It is also not possible to draw conclusions about the timing of the onset or development of myopia.

Causes of, Myopia

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Taking the air

Article Abstract:

The most common method of taking an air sample is to use a battery-operated pump and filter medium. Sorbent sampling is one of a variety of sampling methods, others include impinger/bubbler sampling, bag sampling, filter sampling respirable dust, and filter sampling inhalable dust. Contaminants are separated into three groups including vapours, gases and particulates. The basic principles of air sampling are given.

Analysis, Usage, Air sampling apparatus, Air sampling equipment, Air

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