What Do We Know about C28H14 and C30H14 Benzenoid Hydrocarbons and Their Evolution to Related Polymer Strips?

Diagnostic and therapeutic challenges for dermatologists: What shall we do when we don’t know what to do?

What shall we do when we have done everything we could for the diagnosis and treatment of a patient, but were not successful? What shall we do when there is no definite treatment for a patient? What shall we do when we have no diagnosis or treatment for a patient? Some useful suggestions are presented here to get rid of these situations.

Do We Know What We Do not Know? A Response to Celine Bonnet

P-138: What Should We Know about Ethical Problem in ART? A Study of Systematic Review

Background: Advances in medical technology have had major impacts on human reproduction. The development of effective contraceptive methods has reduced unwanted fertility, and the development of a variety of drugs and procedures has, for the first time, permitted women with fertility problems to reasonably expect that they can fulfill their desires to have children. So, The aim of this review a...

On discriminativity of vertex-degree-based indices

A recently published paper [T. Došlić, this journal 3 (2012) 25-34] considers the Zagreb indices of benzenoid systems, and points out their low discriminativity. We show that analogous results hold for a variety of vertex-degree-based molecular structure descriptors that are being studied in contemporary mathematical chemistry. We also show that these results are straightforwardly obtained by u...

Aromatic Properties of Fully-benzenoid Hydrocarbons

We consider a family of structurally closely related fully-benzenoid hydrocarbons of increasing number of fused benzene rings. Local and global aromatic properties of such molecules are investigated with a particular interest in investigating the role of the finite size of such molecules in modelling the high-polymer or even graphite. An interesting alternation of local properties for benzene r...