A good design of a Boolean function used in a stream cipher requires that the function satisses certain criteria in order to resist different attacks. In this paper we study the tradeoo between two such criteria , the nonlinearity and the resiliency. The results are twofold. Firstly, we establish the maximum nonlinearity for a xed resiliency in certain cases. Secondly, we present a simple searc...

We introduce a framework in parameterized algorithms whose purpose is to solve resiliency versions of decision problems. In resiliency problems, the goal is to decide whether an instance remains positive after any (appropriately defined) perturbation has been applied to it. To tackle these kinds of problems, some of which might be of practical interest, we introduce a notion of resiliency for I...

The University of Pennsylvania has a long legacy of advocating teaching styles and philosophies that engender democratic citizenship and civic engagement. In line with these central views of the University we wish to propose the creation of a new psychology academically based community service course called Penn Teaches Resiliency. This course will utilize the principles of problem solving lear...

This paper presents an initial approach related to modeling resiliency for cyberphysical systems. It discusses the concept and definitions of resiliency and outlines the process of building a model of resiliency. Through analogies with feedback control and fault tolerance, the Design for Resilience is addressed, where the design of the controller component of a cyberphysical system needs to acc...

Aim. The aim of the research was to find out if resiliency is a potentially significant factor in the process of adaptation after heart transplantation. Material and methods. The research included 53 people after heart transplantation, hospitalized in the John Paul II Hospital in Kraków. Measures included a self-made interview questionnaire; the Acceptance of Illness Scale, the Polish Resilienc...

In Europe and in America there is a growing recognition of the need for theory, research, and applied programs that contribute to both community and youth resiliency. This article seeks to build on previous theory and literature to provide a conceptual framework for understanding the mechanisms for linking community and youth resiliency. Included is a review of youth development literature focu...

This article considers how humor may fit within a resiliency perspective. Following a brief overview of resiliency approaches, including selected work on positive psychology, several lines of research that provide initial support for resiliency effects of humor on stress and trauma are highlighted. This work ranges from anecdotal case report descriptions of facilitative humor use in extremely t...

We examine the resiliency of retail locations of a supply chain network to aid in the recovery of the local community after an extreme event. A two-stage stochastic programming model is used to determine the placement of permanent generators at the retail locations of Stewart’s Shops, which distributes both convenience items and fuel in Upstate New York and Vermont, to enhance the resiliency of...

We propose the role-and-relation-based access control (RBAC) model for workflow systems. In RBAC, in addition to auser’s role memberships, the user’s relationships with other users help determine whether the user is allowed to perform acertain step in a workflow. For example, a constraint may require that two steps must not be performed by users who havea conflict of interest. We al...