Abstract: A building element for use in construction of buildings and the like comprises a flat body portion and first and second connecting members. The connecting members can be attached to the body portion following manufacture or else they can be integrally formed with the body portion. The body portion and connecting members are divided by fold lines in order that they may be folded into particular shapes for use, e.g. a building block. Each end of the body portion has a means for engaging the other end of the body portion once the element has been folded into shape in order that the building element shape is retained. The connecting members also include attachment means that can attach the formed building element to other adjacent elements. The elements are formed from punched or cut sheet steel and/or plastics materials and are formed into the desired shapes on site by hand.

Abstract: A building element for use in construction of buildings and the like comprises a flat body portion and first and second connecting members. The connecting members can be attached to the body portion following manufacture or else they can be integrally formed with the body portion. The body portion and connecting members are divided by fold lines in order that they may be folded into particular shapes for use, e.g. a building block. Each end of the body portion has a means for engaging the other end of the body portion once the element has been folded into shape in order that the building element shape is retained. The connecting members also include attachment means that can attach the formed building element to other adjacent elements. The elements are formed from punched or cut sheet steel and/or plastics materials and are formed into the desired shapes on site by hand.

Abstract: A novel catagory of Green Fluorescent Protein (GFP) is disclosed, which exhibits the novel trait of rapid chromophore formation under reduced oxygen levels while maintaining a fluorescence spectrum similar to the wildtype GFP. Examples of this category of low oxygen variants are the mutations F64C, F64M and V68C. These GFP variants also exhibit the useful traits of thermotolerance and higher fluorescence yield. Mutants that combine this low oxygen chromophore development with mutations conferring blue or red fluorescence are also disclosed. These fluorescent proteins may be used in any of the applications where the wild type green fluorescent protein is used, as well as many new anaerobic applications where GFP could previously not be used.

Abstract: An ester oil which lacks complete miscibility with fluorohydrocarbons has its miscibility with fluorohydrocarbons refrigerants improved by blending it with a second ester oil composed of molecules corresponding to the formula ROOC--CH.sub.2 CH.sub.2 -[(ROOC)CHCH.sub.2 ].sub.m --C(COOR).sub.2 --[CH.sub.2 CH(COOR)].sub.n --CH.sub.2 CH.sub.2 COOR wherein the R's represent alkyl groups of 1-30 carbons, at least 10% of which are alkyl groups of 1-4 carbons; and each of m and n represents zero or a positive integer such that the sum of m and n in a molecule is 0-30.

Abstract: An improved process for producing sulfur-cured polyphosphazene foams is disclosed. The process comprises foaming more than one storable, stable accelerator base composition comprising the sulfur curing agent, a phosphazene oil and a polyphosphazene. A masterbatch of the same or similar polyphosphazene is made by mixing together a hydrated filler, processing aids and phosphazene oil. The matchbatch and accelerator base composition are then blended and foamed and cured.