Quantachrome Instruments manufactures laboratory instruments for characterization of porous materials and powders. Our products measure density, pore size, surface area, metal area and water sorption for a wide variety of applications including catalysts, pharmaceuticals, ceramics, carbons, building materials - or any other porous or divided solid

The National Library of Medicine (NLM), on the campus of NIH in Bethesda, Maryland, is the world's largest medical library. It collects materials in all major areas of the health sciences and to a lesser degree in such areas as chemistry, physics, botany and zoology. The collections stand at 5 million items--books, journals, technical reports, manuscripts, microfilms, photographs and images. Hous

GlobalSpec is a search engine and information resource for the engineering, industrial and technical communities. We help you quickly find industrial parts, specifications and services.

Anton Paar GmbH produces high-quality measuring and analysis instruments for research and industry.

Your source for Repair Manuals, Training Courses, Army Training, and all other training material.

Find the best easy-to-understand, doctor-reviewed health and medical information and useful tools. We help you stay healthy, get healthy or live with

The National Osteoporosis Foundation (NOF) is the leading consumer and community-focused health organization dedicated to the prevention of osteoporosis and broken bones, the promotion of strong bones for life and the reduction of human suffering through programs of public and clinician awareness, education, advocacy and research.