Polenta publications

Liquid Publications: Scientific Publications Meet the Web

The world of scientific publications has been largely oblivious to the advent of the Web and to advances in ICT. Scientific knowledge dissemination is still based on the traditional notion of “paper” publication and on peer review as quality assessment method. The current approach encourages authors to write many (possibly incremental) papers to get more “tokens of credit”, generating often unn...

Reality of Misconduct in Iranian Orthopedic Publications

Fake and misconducted scientific articles are misleading the researchers; it can also impose a huge cost on the academic centers and health system. Finally invalidated published research may give rise to incorrect treatment guidelines that may harm the patients. Based on our search in retraction watch database, 10 retracted orthopedic articles were from Iran. All the reported retracted article ...

Journal Publications

The evasion of carbon dioxide from inland waters was only recently included in assessments of the global carbon budget1,2. Current estimates of carbon dioxide release from global freshwater systems, including lakes and wetlands, range from 0.7 to 3.3 Pg C per year1,3-6. However, these estimates are based on incomplete spatial coverage of carbon dioxide evasion, and an inadequate understanding o...

Publications 5

Twelve Publications

We prove a complexity classification theorem that classifies all counting constraint satisfaction problems (#CSP) over Boolean variables into exactly three categories: (1) Polynomial-time tractable; (2) #P-hard for general instances, but solvable in polynomial-time over planar graphs; and (3) #P-hard over planar graphs. The classification applies to all sets of local, not necessarily symmetric,...