"less contribution" is a perfectly acceptable phrase in written English.
You could use it whenever you need to refer to a smaller amount of contribution or involvement. For example, "The company made less contribution to the community this year than the year before."
In contrast, less contribution is provided by residual compressive stresses.
It proves that conjugated pyrene plays much less contribution to frontier orbitals than non-conjugated pyrene.
The remaining two parameters have very less contribution towards mechanical properties of the 3D structures.
laminar flow with prominent Dean circulation, laminar flow with less contribution of Dean circulation, and fully developed turbulent flow.
Offering incentives to develop alternative power would lead to cleaner skies, less contribution to greenhouse gases than fossil fuel plants and less dependence on external power suppliers.
The greatest stability of Pb retention by PR can be attributed to the formation of insoluble fluoropyromorphite [Pb10(PO4)6F2], which was primarily responsible for Pb immobilization (up to 78.3%), with less contribution from the surface adsorption or complexation (21.7%), compared to 74.5% for Cu and 95.7% for Zn.
Classical economic theories of business competition are so simplistic and sterile that they have been less contributions to understanding than obstacles.
According to the frontier molecular orbitals, the less contributions of Co2+ in determining the NLO responses of metal complexes arise from the action of bridging moiety in the charge transfer (CT) processes.
It is apparent that there were less contributions of individuals 2 and 4 to the pool.
For fish oil, production in the first nine months stayed stable compared with the same period last year, with slightly less contributions from Peru and Chile.
The European Commission said €9.4 billion less contributions were needed from member states to finance the 2015 expenses.
