Paralytic shellfish poisoning (PSP) is an acute toxic illness in humans resulting from ingestion of shellfish contaminated with a suite of neurotoxins (saxitoxins) produced by marine dinoflagellates, most commonly in the genus Alexandrium. Poisoning also has been sporadically suspected and, less often, documented in marine wildlife, often in association with an outbreak in humans. Kittlitz's Mu...

When planning trajectories for linear control systems, a demand that arises naturally in, for instance, air traac control, noise contaminated data interpolation, and planning for switched control systems, is that the curve interpolate through given points or intervals at given times. In this article, we address this by showing how standard optimal control techniques, together with mathematical ...

We randomly allocated 50 total knee replacements to scrub teams wearing body-exhaust suits (BES) or Rotecno occlusive clothing. The effectiveness of the clothing was assessed using air andwound bacterial counts. Bacteria were recovered from 62% of wounds (64% BES, 60% Rotecno). The mean air count was 0.5 CFU/ m3 with BES and 1.0 CFU/m3 with Rotecno (p = 0.014). The mean wound counts were 14 bac...

Alzheimer, a chronic neurodegenerative disease, usually starts slowly and worsens gradually. It causes 60% to 70% of dementia cases. Difficulty in remembering recent events (short-term memory loss) is the most prominent early symptom. As the disease progresses, patients may have problems such as impaired language, disorientation (including easily getting lost), mood swings, loss of motivation, ...

However, data are lacking on the amount of pesticides consumed in the diet by age group as well as the contribution of pesticide exposures from the dietary pathway relative to other sources. 4 For example, pesticide exposures can occur from the inhalation of indoor and outdoor air, ingestion of dust from hand-to-mouth or object-to-mouth activities, ingestion of contaminated soil or water, and d...

that the greater the contamination of the hospital and its furniture, the more difficulty the surgeon will have in preventing the septic poisoning of his patients. This may be illustrated by a reference to Tyndall's experiments on the cause of the putrefaction of organic liquids, when he found the air of the laboratory of the Eoyal Institution of London in which lie had been for some time worki...

Samples of produce (tomatoes, potatoes, carrots, and lettuce) from the area surrounding the New Bedford Harbor Superfund site were analyzed for the concentration and distribution of 47 polychlorinated biphenyl (PCB) congeners. Samples of produce from out of state also were analyzed for comparison purposes. New Bedford Harbor sediments are highly contaminated with PCBs, which may partition into ...

Zygomycetes are unique among filamentous fungi in their great ability to infect a broader, more heterogeneous population of human hosts than other opportunistic moulds. Various members of the Zygomycetes have been implicated in zygomycosis, although those belonging to the family Mucoraceae are isolated more frequently than those of any other family. The environmental microbiology literature pro...

Once turkeys arrive at Midwest processing plants, they are usually held in large open-sided sheds for 1 to 4 h, waiting to be unloaded. In hot, humid weather, large fans are used to cool the birds. The resultant air currents distribute a significant amount of dust to the turkeys. The dust created in this environment could be a factor in the number of Salmonella-contaminated turkeys entering sla...