New anticoagulants, why are they different

Anticoagulants and pregnancy: when are they safe?

Prescribing anticoagulants to pregnant women can be difficult and stressful. Fortunately, low-molecular-weight heparins (LMWHs) and unfractionated heparin are quite safe and efficacious when properly selected, dosed, and monitored. Maternal and fetal concerns must be considered at all times, with a careful assessment of the risks and benefits of anticoagulant therapy in each patient. Further re...

DABCO and DMAP--why are they different in organocatalysis?

Two Measures of Reserves: Why Are They Different?

Though these series have similardescriptions, their growth rates often differ substantially, especially over periods as short as a month (table 1). For instance, in the three years ending in December 1982, the difference between monthly growth rates of the two reserves series (absolute value) averaged 8.6 percentage points. Average differences in growth rates were much smaller over periods long...

Toxic Christmas and New Year Holiday Plants...or Are They?

Background: Poinsettia (Euphorbia pulcherrima), holly (Ilex opaca) and mistletoe (Phoradendron flavescens) adorn homes during the Christmas and New Year holiday season and create the potential for curious children to sample their colorful leaves and enticing berries. This study was aimed to review the American Association of Poison Control Centers National Poison Data System (AAPCC NPDS) to des...

medicinal plants and antioxidants: why they are not always beneficial?

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