No carbon required

As a general rule, the voucher agency should receive a copy of all forms. Service providers will probably wish to keep a copy of the form for their records. Sometimes diagnostic service providers will require copies of at least parts of the clinic record. Multiple copies of forms can be produced cheaply using NCR (no carbon required) paper that prints through to the sheet below with the pressure of a pen. 

In 1954, the National Cash Register Company (now NCR Corporation) and the Appleton Coated Paper Company (today s Appvion) collaborated to introduce the first carbonless paper. It was known then, as it is today, as the NCR PAPER brand of carbonless paper. The product was simply promoted as a new paper product that eliminates carbon paper. Some dubbed it the no carbon required paper. The first commercial sale took place on March 26,1954, and marked the first use of the NCR PAPER trademark. 

Menne T, Asnaes G, Hjorth N (1981) Skin and mucous membrane problems from no carbon required paper. Contact Dermatitis 7 72-76... 

Alumina trihydrate (ATH) is made from waste generated by the almninum metal purification process. It has high brightness but low refi active index. At low levels of substitution for Ti02, 25% or less, optical properties can be maintained. Like the synthetic silicas, ATH can be used as a paper brightning pigment when opacity is not as important. ATH is used in NCR (no carbon required) papers where it favorably affects the special dyes used in the paper. ATH is also known for its flame retardant properties. ATH retards bmming by the release of water at rather low temperatures. It is added to impart flame retardance to certain specialty papers. 

Listed metallic materials Ductile iron, malleable iron. Carbon steel, ASTM A36, ASTM A283 1. No additional requirements. 1. Shall not be used. 

It should be noted that at least three of the Ba-rich stars in our sample exhibit no clear variation in their radial velocities over the last 8-10 years. Either their periods are quite long, or the mass-accretion scenario may not apply to these objects. Further investigation of the binarity for these objects is clearly required. Ba-normal stars The other nine objects in our sample have relatively low Ba abundances ( — 1.0 < [Ba/Fe] < —0.5). These values are typical in metal-deficient stars that show no carbon excess ([C/Fe]< +0.5), hence the scenario of carbon enrichment by AGB stars cannot be simply applied to these stars. 

Malleable and ductile cast iron carbon steel per Note (1) A-2 No additional requirements B-2 Materials designated in Box 2 shall not be used. 

These newly discovered methods have found wide synthetic application. Examples include the generation and cycloaddition of stabilized N-unsubstituted azomethine ylides, nonstabilized N-substituted azomethine ylides, and even the parent azomethine ylides bearing no carbon substituents (19). However, these modem procedures often require severe reaction conditions such as high reaction temperatures, the use of polar solvents, and the use of strong bases, among others. The poor stereo- and regioselectivities that are often observed in the cycloadditions of nonstabilized azomethine ylides have discouraged their use in the stereocontrolled synthesis of complex molecules. 

Each pair of connected carbon atoms, CA — CB, is thus segregated according to its sum of chemical shifts, so that the actual magnitude of the carbon-carbon coupling constant is no longer required for identification of the bond. A straightforward method of tracing out the carbon skeleton of a compound is thus established. 

An important point about quaternary carbons requires comment. Until now, we have had no direct correlations for carbons without protons, nor have we been able to see through heteroatoms such as oxygen, nitrogen, sulfur, etc. Both the two- and three-bond coupling correlations of HMBC provide us with both types of critical information. For example, C-4 of caryophyllene oxide at 59.1 ppm has no attached protons, and so far it has only appeared in the l3C spectrum of the compound, and we know that it is quaternary... 

Now I look at the saber-tooth tiger s skull, so massive, so deadly. Without stars, the tiger racing across the savanna fades away, ghostlike. There are no iron atoms for its blood, no oxygen for it to breathe, no carbon for its proteins and DNA. There are no mossy caverns, mist-covered swamps, black vipers, retinas, spiral nautilus shells. Our existence requires stars to forge the heavy ele-... 

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