A community's members are a rich source of knowledge about their community and of energy and commitment to that community. When public health professionals envision a program to address health issues in a particular community, tapping into the community's expertise and enthusiasm is frequently an essential issue.
1 The two forms are sometimes described as  anomers  since they are isomers at the anomeric center. 2  To assign the cyclic form of a carbohydrate as the Î±- or Î²- form look at the relative positions of the-CH 2 OH group and-OH (or-OR) group at the anomeric center. In the Î²- form, the exocyclic O group at the anomeric center is on the same face as the-CH 2 OH group. 2  If a mixture of the Î±- and Î²- anomers are present, then this is often represented by using a wavy line to represent the bond:
Glucose: ring form. Glucose molecules form rings. The first carbon atom (C1), which is an aldehyde group (-CHO), creates a hemiacetal with the fifth carbon atom (C5) to make a 6-membered-ring (termed a pyranose). The atoms in this cyclic molecule then arrange themselves in space to minimize the amount of strain on each of the covalent bonds. The carbon atoms in the glucose ring each have four covalent bonds. The best, or optimum angle, between all these bonds is 109.5o, which results in a perfect tetrahedron. If, for any reason, these bonds are forced into greater, or smaller angles then the molecule will be strained or stressed, and be much less stable.