In this study, a powder rheometer was used to measure flow characteristics of two pharmaceutical model powders. Precise measurements were obtained for one of the model powders whereas the results were less precise for the second powder. In conclusion, further work is needed to increase the mechanistic understanding of powder rheological measurements. INTRODUCTION Modern pharmaceuticals are prim...

The root of the ginseng plants has been used as herbal medicine in Asia for over two thousand years. It is purported to possess antioxidant, anticarcinogenic, anti-inflammatory, antihypertensive and anti-diabetic properties. The pharmacologically active compounds behind the claims of ginseng's efficacy are ginsenosides; their underlying mechanism of action, although not entirely elucidated, app...

Nectar-robbing has the potential to strongly affect male and female reproductive fitness of plants. One example of nectar theft is that shown by striped-squirrels (Tamiops swinhoei) on a number of ginger species, including Alpinia roxburghii and A. kwangsiensis (Zingiberaceae). In this study, we used a fluorescent dye as a pollen analogue, and measured fruit and seed output, to test the effect ...

Article history: Received on: 03/09/2012 Revised on: 14/09/2012 Accepted on: 20/09/2012 Available online: 28/09/2012 Plant-derived substances have traditionally played important roles in the treatment of human diseases, including of great significance to cancer therapy. Plants of the genus Pterodon (Fabaceae, Leguminosae), commonly known as ‘sucupira’, are disseminated throughout the central re...

Laboratory scale tests were conducted at Mintek for the production of titanium powder from particulate Kroll sponge by the hydrogenation-dehydrogenation (HDH) process. The aim of this work was to produce titanium powder for powder metallurgical consolidations. The work involved the production of titanium powder at optimised conditions, which included hydrogenation in a horizontal tube furnace a...

Consider the following "snapshots" in the life of the Hercules Powder Co. of Wilmington, Delaware: In 1919 Hercules' total sales were $20.5 million. More than 99 percent of these revenues came from a single line of business: commercial explosives, including gunpowder, smokeless powder, blasting powder, and, especially, dynamite. These products were sold to mine and quarry operators, constructio...

The aim of this study is to investigate the feasibility of using waste bricks powder of Gachsaran Company in concrete. Cement is replaced by waste bricks powder in different proportions until 40 percent by weight. pozzolanic properties of bricks powder and compressive strength of concrete were investigated. The results demonstrated that the bricks powder show pozzolanic properties. Results also...

The effects of the flow and packing properties of a drug/carrier powder mixture on emission of drug adhering to the carrier from capsules and inhalation devices were investigated. Model powder mixtures were designed consisting of lactose carriers with different particle shapes were prepared by surface treatment and micronized salbutamol sulfate. These powder mixtures were aerosolized by a Spinh...

Background & Aim:Increasing the tendency in families for taking care of pets makes   people pay more attention to their disease especially the common ones. In   recent years the tendency to use of herbal drugs has increased in animals.   Herbal drugs are plants that one or some of their members have effective. We   supposed that the Elaeagnus angustifolia(oleaster)   p...

This study was conducted to assess the exposure risk through inhalation to baby powder for babies and adults under simulated conditions. Baby powder was applied to a baby doll and the amount of baby powder consumed per application was estimated. The airborne exposure to baby powder during application was then evaluated by sampling the airborne baby powder near the breathing zones of both the ba...