leadership is important for nurturing employee creativity. although how leaders can influence employee creativity is somehow unclear, previous studies show that leadership can enhance employees’ willingness to share knowledge. this study examines how leader-member exchange (lmx) affects employees’ creative work involvement through knowledge sharing. data (n=385) was collected utilizing a questi...

Background Nowadays task sharing is a way to optimize utilization of human resources for health. This study was designed to assess the effect of task sharing, mutually between midwives and Family Health Workforces (FHWs), on the number of needed staff across the Iranian Health Posts.   Methods The workload and required number of midwives and FHWs in a Health Post were calculated and compared in...

Secret sharing schemes are methods for distributing a secret among n participants in such a way that any qualified subsets of participants can recover the secret, and unqualified participants can not. In 1979, secret sharing schemes were first independently introduced by Blakley and Shamir. In 1987, Feldman proposed a verifiable secret sharing scheme based on Shamir’s Scheme, that every partici...

VSS (verifiable secret sharing) is an important security protection tool in distributed systems. When VSS is employed in publicly verifiable applications, it needs to achieve public verifiability and be upgraded to PVSS (publicly verifiable secret sharing). Besides the two basic security properties, bindingness and hidingness, PVSS concentrates on public verifiability of validity all the operat...

A Publicly Verifiable Secret Sharing (PVSS) scheme allows anyone to verify the validity of the shares computed and distributed by a dealer. The idea of PVSS was introduced by Stadler in [18] where he presented a PVSS scheme based on Discrete Logarithm. Later, several PVSS schemes were proposed. In [2], Behnad and Eghlidos present an interesting PVSS scheme with explicit membership and disputati...

A publicly verifiable secret sharing (PVSS) scheme is a verifiable secret sharing (VSS) scheme in which anyone, not only the shareholders, can verify that the secret shares are correctly distributed. PVSS plays an essential role in the systems that use VSS. In this paper we present a new construction for PVSS scheme based on Paillier encryption scheme.We formalize the notion of indistinguishabi...

this research aims at investigating the role of certain factors in organizational culture in the success of knowledge sharing. the research question asks which cultural factors affect knowledge sharing in r&d; center of petrochemical industry. research method used in research is survey. of the 190 survey packages sent out, 132 of the questionnaires returned. to analyze data we use spearman corr...