H-Bond

(redirected from H-Bonds)

H-Bond

A former savings bond in the United States that paid interest on its principal semi-annually. Unlike Series E bonds, which paid interest only at redemption, H-bonds provided bondholders with current income on their investments. H-bonds were issued at face value, were exempt from state and local taxes, and had a fixed interest rate. They were issued between 1952 and 1979 and were replaced by the Series HH bond in 1980.
References in periodicals archive ?
Since PA66 is a highly polar polymer, polar solvents have an affinity to PA66 because these molecules can form H-bonds with polyamide chains.
The existence of H-bonds in the amorphous phase of PA66 gives the polymer good mechanical properties as well as a relatively high [T.
An adenine on one strand can line tip its H-bond donors and acceptors with a thymine on the opposite strand, forming a total of 2 H bonds: and a guanine can line up similarly with a cytosine, forming 3 H-bonds.
Recall last month's "not-really-accurate-but-mentally-helpful" analogy of H-bonds as being like tiny magnets.
The results of the simulations show that the 17-OH group of testosterone forms H-bonds to THR-877 and ASN-705 while the 3-Keto group H-b onds to GLN-711 and ARG-752.
TSA] membrane did not show this behavior, suggesting the occurrence of H-bonds between polyaniline amines and PU.
g] with polyaniline can be explained, considering the formation of H-bonds between polyaniline amine groups and PU urethane groups as shown in Fig.
r]) is a constant characteristic of H-bonds, and N is the effective number of H-bonds per unit volume involved in taking up the strain under uniaxial stress conditions.
Secondary structure occurs when, let's say, Mary's carboxyl group H-bonds to Joe's amino group.
These follow three rules: each base can only participate in at most one h-bond; h-bonds may not cross; and the bases that form an h-bond may not be too close to each other in the primary structure.
Here, the distance between every two bases that are connected by an h-bond is > k if and only if the corresponding Motzkin path is in [M.
In human deoxyhemoglobin, a sulfate anion is found anchored to the [beta]-chains by a complex network of H-bonds and electrostatic interactions with the N-terminus and [beta]Lys82.