Personal protective equipment (PPE) is the least desirable way to ensure workplace safety, and it is difficult to use consistently. Hard hats are different; they have cachet and are often worn even when they are not required. We investigated the history of this personal protective equipment to see if there were any lessons that could be applied to other forms of PPE. We learned that what makes ...

Experiments indicating the existence of a menstrual toxin responsible for some of the clinical features of preeclamptic and eclamptic toxemias of pregnancy, and of a protective factor capable of neutralizing this toxin in animal experiments and in human cases have been reported by Smith and Smith (l-3). The apparent success obtained in some of the clinical cases in which protective pseudoglobul...

objective: ionizing radiation interacts with biological systems to induce excessive fluxes of free radicals that attack various cellular components. melatonin has been shown to be a direct free radical scavenger and indirect antioxidant via its stimulatory actions on the antioxidant system.the aim of this study was to evaluate the antioxidant role of melatonin against radiation-induced oxidativ...

background and purpose: many workers are exposed to workplace hazards. many occupational diseases are preventable by personal protective devices (ppds). though many workers do not use ppds or their protection by ppds is not sufficient. this study was designed to assess the quality of ppds usage among industrial workers. materials and methods: in a cross-sectional study, 648 workers from four ma...

Medicinal chemists and pharmacognosists have relied on terrestrial sources for bioactive phytochemicals to manage treat disease conditions. However, minimal interest is given sea life, especially macroalgae their inherent phytochemical reserves. Phlorotannins are a special class of mainly predominant in brown algae marine estuarine habitats. formed through the polymerization phloroglucinol resi...

Cognitive radio has been introduced by Mitola in 1999 as an extension to software radio [1] (Stevens USA). Cognitive radio extends the software radio with radio-domain model-based reasoning about etiquettes (set of RF bands, air interfaces, protocols, and spatial and temporal patterns that moderate the use of the radio spectrum). Cognitive radio enhances the flexibility of personal services thr...

Mucosal protective agents may improve healing of patients with endoscopic submucosal dissection-induced ulcers. The present study systematically evaluated published clinical trials to determine whether combined therapeutic use of mucosal protective agents and proton pump inhibitors can improve the outcome of patients with endoscopic submucosal dissection-induced ulcers compared to treatment wit...