Introduction: Geometric distortion, an important parameter in neurology and oncology. The current study aimed to design and construct a new three-dimensional (3D) phantom using a 3D printer in order to measure geometric distortion and its 3D reproducibility. Material and Methods: In this study, a new phantom ...

A social welfare function entitled ‘ordinal Nash’ is proposed based on risk preferences and assuming a common, worst social state for all individuals. The crucial axiom in the characterisation of the solution is a weak version of IIA, in which only the relative risk position with respect to the worst state is considered. Thus the resulting social preference takes into account non (necessarily) ...

Social insurance for the elderly is judged responsible for the widely observed trend towards early retirement. In a world of laissez-faire or in a first-best setting, there would be no such trend. However, when first-best instruments are not available, because health and productivity are not observable, the optimal social insurance policy may imply a distortion on the retirement decision. The m...

Forgetting in the recall-based elicitation of personal and social networks poses a potentially significant problem for the collection of complete network data and unbiased measurement of network characteristics and properties. A comprehensive review of the literature shows that forgetting is a pervasive, non-trivial phenomenon in the recall-based elicitation of personal and social networks pert...

Social media platforms provide a source for transmitting information that can become widely accepted. However, in this process of transmission, information becomes susceptible to distortion. In this study, we assessed people’s semantic (i.e., prior expectations) and recognition memory for pop culture content, as a function of confidence and perceived information source. In Experiment 1, we inve...

This paper addresses the problem of content-based synchronization for robust watermarking. Synchronization is a process of extracting the location to embed and detect the signature so that it is crucial for the robustness of the watermarking system. In this paper, we will review representative contentbased approaches and propose a new synchronization method based on the scale invariant feature ...

This paper describes how wealth inequality may distort public resource allocation. A government seeks to allocate limited resources to productive sectors, but sectoral productivity is privately known by agents with vested interests in those sectors. They lobby the government for preferential treatment. The government—even if it honestly seeks to maximize economic efficiency—may be confounded by...

In this paper, we introduce and investigate a new class of meromorphic functions defined by a differential operator. For this class, we obtain coefficient inequality, distortion inequality, radius of close-to-convex, starlikeness and convexity, extreme points and integral means inequality.

Internal agency conflicts distort firms’ choices and reduce social welfare. To limit these distortions, principals dealing with privately informed agents often acquire information from specialized intermediaries, such as auditing and certification companies, that are able to ascertain, and credibly disclose, agents’private information. We study how the structures of both the information provisi...